10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

______________________

Form 10-K

(Mark One)
þ	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	FOR THE FISCAL YEAR ENDED DECEMBER 31, 2014
OR
o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	FOR THE TRANSITION PERIOD FROM   TO

Commission File Number 1-31447

______________________

CenterPoint Energy, Inc.

(Exact name of registrant as specified in its charter)

Texas	74-0694415
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
1111 Louisiana Houston, Texas 77002 (Address and zip code of principal executive offices)	(713) 207-1111 (Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Name of each exchange on which registered
Common Stock, $0.01 par value	New York Stock Exchange Chicago Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes þ No o

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  Yes o No þ

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes þ No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes þ No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein and will not be contained, to the best of  the registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer þ	Accelerated filer o	Non-accelerated filer o	Smaller reporting company o
		(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes o No þ

The aggregate market value of the voting stock held by non-affiliates of CenterPoint Energy, Inc. (CenterPoint Energy) was $10,907,234,073 as of June 30, 2014, using the definition of beneficial ownership contained in Rule 13d-3 promulgated pursuant to the Securities Exchange Act of 1934 and excluding shares held by directors and executive officers. As of February 17, 2015, CenterPoint Energy had 429,802,703 shares of Common Stock outstanding. Excluded from the number of shares of Common Stock outstanding are 166 shares held by CenterPoint Energy as treasury stock.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the definitive proxy statement relating to the 2015 Annual Meeting of Shareholders of CenterPoint Energy, which will be filed with the Securities and Exchange Commission within 120 days of December 31, 2014, are incorporated by reference in Item 10, Item 11, Item 12, Item 13 and Item 14 of Part III of this Form 10-K.

TABLE OF CONTENTS

PART I
		Page
Item 1.	Business	1
Item 1A.	Risk Factors	18
Item 1B.	Unresolved Staff Comments	38
Item 2.	Properties	38
Item 3.	Legal Proceedings	39
Item 4.	Mine Safety Disclosures	39
PART II
Item 5.	Market for Registrants’ Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	40
Item 6.	Selected Financial Data	41
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	42
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	69
Item 8.	Financial Statements and Supplementary Data	71
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	118
Item 9A.	Controls and Procedures	118
Item 9B.	Other Information	121
PART III
Item 10.	Directors, Executive Officers and Corporate Governance	121
Item 11.	Executive Compensation	121
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	121
Item 13.	Certain Relationships and Related Transactions, and Director Independence	121
Item 14.	Principal Accounting Fees and Services	121
PART IV
Item 15.	Exhibits and Financial Statement Schedules	122

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CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

From time to time we make statements concerning our expectations, beliefs, plans, objectives, goals, strategies, future events or performance and underlying assumptions and other statements that are not historical facts. These statements are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those expressed or implied by these statements. You can generally identify our forward-looking statements by the words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “goal,” “intend,” “may,” “objective,” “plan,” “potential,” “predict,” “projection,” “should,” “will” or other similar words.

We have based our forward-looking statements on our management’s beliefs and assumptions based on information reasonably available to our management at the time the statements are made. We caution you that assumptions, beliefs, expectations, intentions and projections about future events may and often do vary materially from actual results. Therefore, we cannot assure you that actual results will not differ materially from those expressed or implied by our forward-looking statements.

Some of the factors that could cause actual results to differ from those expressed or implied by our forward-looking statements are described under “Risk Factors” in Item 1A and “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Certain Factors Affecting Future Earnings” and “ – Liquidity and Capital Resources – Other Matters – Other Factors That Could Affect Cash Requirements” in Item 7 of this report, which discussions are incorporated herein by reference.

You should not place undue reliance on forward-looking statements. Each forward-looking statement speaks only as of the date of the particular statement, and we undertake no obligation to update or revise any forward-looking statements.

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PART I

Item 1. Business

OUR BUSINESS

Overview

We are a public utility holding company. Our operating subsidiaries own and operate electric transmission and distribution facilities and natural gas distribution facilities and own interests in Enable Midstream Partners, LP (Enable) as described below. Our indirect wholly owned subsidiaries include:

• CenterPoint Energy Houston Electric, LLC (CenterPoint Houston), which engages in the electric transmission and distribution business in a 5,000-square mile area of the Texas Gulf Coast that includes the city of Houston; and

• CenterPoint Energy Resources Corp. (CERC Corp. and, together with its subsidiaries, CERC), which owns and operates natural gas distribution systems (NGD). A wholly owned subsidiary of CERC Corp. offers variable and fixed-price physical natural gas supplies primarily to commercial and industrial customers and electric and gas utilities. As of December 31, 2014, CERC Corp. also owned approximately 55.4% of the limited partner interests in Enable, which owns, operates and develops natural gas and crude oil infrastructure assets.

Our reportable business segments are Electric Transmission & Distribution, Natural Gas Distribution, Energy Services, Midstream Investments and Other Operations. Substantially all of our former Interstate Pipelines business segment and Field Services business segment were contributed to Enable in May 2013. As a result, these business segments did not report operating results during 2014. From time to time, we consider the acquisition or the disposition of assets or businesses.

Our principal executive offices are located at 1111 Louisiana, Houston, Texas 77002 (telephone number: 713-207-1111).

We make available free of charge on our Internet website our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 as soon as reasonably practicable after we electronically file such reports with, or furnish them to, the Securities and Exchange Commission (SEC). Additionally, we make available free of charge on our Internet website:

• our Code of Ethics for our Chief Executive Officer and Senior Financial Officers;

• our Ethics and Compliance Code;

• our Corporate Governance Guidelines; and

• the charters of the audit, compensation and governance committees of our Board of Directors.

Any shareholder who so requests may obtain a printed copy of any of these documents from us. Changes in or waivers of our Code of Ethics for our Chief Executive Officer and Senior Financial Officers and waivers of our Ethics and Compliance Code for directors or executive officers will be posted on our Internet website within five business days of such change or waiver and maintained for at least 12 months or reported on Item 5.05 of Form 8-K. Our website address is www.centerpointenergy.com. Except to the extent explicitly stated herein, documents and information on our website are not incorporated by reference herein.

Electric Transmission & Distribution

CenterPoint Houston is a transmission and distribution electric utility that operates wholly within the state of Texas. Neither CenterPoint Houston nor any other subsidiary of CenterPoint Energy makes direct retail or wholesale sales of electric energy or owns or operates any electric generating facilities.

Electric Transmission

On behalf of retail electric providers (REPs), CenterPoint Houston delivers electricity from power plants to substations, from one substation to another and to retail electric customers taking power at or above 69 kilovolts (kV) in locations throughout CenterPoint Houston’s certificated service territory. CenterPoint Houston constructs and maintains transmission facilities and provides transmission services under tariffs approved by the Public Utility Commission of Texas (Texas Utility Commission).

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Electric Distribution

In the Electric Reliability Council of Texas, Inc. (ERCOT), end users purchase their electricity directly from certificated REPs. CenterPoint Houston delivers electricity for REPs in its certificated service area by carrying lower-voltage power from the substation to the retail electric customer. CenterPoint Houston’s distribution network receives electricity from the transmission grid through power distribution substations and delivers electricity to end users through distribution feeders. CenterPoint Houston’s operations include construction and maintenance of distribution facilities, metering services, outage response services and call center operations. CenterPoint Houston provides distribution services under tariffs approved by the Texas Utility Commission. Texas Utility Commission rules and market protocols govern the commercial operations of distribution companies and other market participants. Rates for these existing services are established pursuant to rate proceedings conducted before municipalities that have original jurisdiction and the Texas Utility Commission.

ERCOT Market Framework

CenterPoint Houston is a member of ERCOT. Within ERCOT, prices for wholesale generation and retail electric sales are unregulated, but services provided by transmission and distribution companies, such as CenterPoint Houston, are regulated by the Texas Utility Commission. ERCOT serves as the regional reliability coordinating council for member electric power systems in most of Texas. ERCOT membership is open to consumer groups, investor and municipally-owned electric utilities, rural electric cooperatives, independent generators, power marketers, river authorities and REPs. The ERCOT market includes most of the State of Texas, other than a portion of the panhandle, portions of the eastern part of the state bordering Arkansas and Louisiana and the area in and around El Paso. The ERCOT market represents approximately 90% of the demand for power in Texas and is one of the nation’s largest power markets. The ERCOT market included available generating capacity of over 77,000 megawatts (MW) at December 31, 2014. Currently, there are only limited direct current interconnections between the ERCOT market and other power markets in the United States and Mexico.

The ERCOT market operates under the reliability standards set by the North American Electric Reliability Corporation (NERC) and approved by the Federal Energy Regulatory Commission (FERC). These reliability standards are administered by the Texas Regional Entity (TRE), a functionally independent division of ERCOT. The Texas Utility Commission has primary jurisdiction over the ERCOT market to ensure the adequacy and reliability of electricity supply across the state’s main interconnected power transmission grid. The ERCOT independent system operator (ERCOT ISO) is responsible for operating the bulk electric power supply system in the ERCOT market. Its responsibilities include ensuring that electricity production and delivery are accurately accounted for among the generation resources and wholesale buyers and sellers. Unlike certain other regional power markets, the ERCOT market is not a centrally dispatched power pool, and the ERCOT ISO does not procure energy on behalf of its members other than to maintain the reliable operations of the transmission system. Members who sell and purchase power are responsible for contracting sales and purchases of power bilaterally. The ERCOT ISO also serves as agent for procuring ancillary services for those members who elect not to provide their own ancillary services.

CenterPoint Houston’s electric transmission business, along with those of other owners of transmission facilities in Texas, supports the operation of the ERCOT ISO. The transmission business has planning, design, construction, operation and maintenance responsibility for the portion of the transmission grid and for the load-serving substations it owns, primarily within its certificated area. CenterPoint Houston participates with the ERCOT ISO and other ERCOT utilities to plan, design, obtain regulatory approval for and construct new transmission lines necessary to increase bulk power transfer capability and to remove existing constraints on the ERCOT transmission grid.

Restructuring of the Texas Electric Market

In 1999, the Texas legislature adopted the Texas Electric Choice Plan (Texas electric restructuring law). Pursuant to that legislation, integrated electric utilities operating within ERCOT were required to unbundle their integrated operations into separate retail sales, power generation and transmission and distribution companies. The legislation provided for a transition period to move to the new market structure and provided a mechanism for the formerly integrated electric utilities to recover stranded and certain other costs resulting from the transition to competition. Those costs were recoverable after approval by the Texas Utility Commission either through the issuance of securitization bonds or through the implementation of a competition transition charge as a rider to the utility’s tariff. CenterPoint Houston’s integrated utility business was restructured in accordance with the Texas electric restructuring law and its generating stations were sold to third parties. Ultimately CenterPoint Houston was authorized to recover a total of approximately $5 billion in stranded costs, other charges and related interest.  Most of that amount was recovered through the issuance of transition bonds by special purpose subsidiaries of CenterPoint Houston.  The transition bonds are repaid through charges imposed on customers in CenterPoint Houston’s service territory.  As of December 31, 2014, approximately $2.6 billion aggregate principal amount of transition bonds were outstanding.

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Customers

CenterPoint Houston serves nearly all of the Houston/Galveston metropolitan area. At December 31, 2014, CenterPoint Houston’s customers consisted of approximately 70 REPs, which sell electricity to over two million metered customers in CenterPoint Houston’s certificated service area, and municipalities, electric cooperatives and other distribution companies located outside CenterPoint Houston’s certificated service area. Each REP is licensed by, and must meet minimum creditworthiness criteria established by, the Texas Utility Commission.

Sales to REPs that are affiliates of NRG Energy, Inc. (NRG) represented approximately 37%, 38% and 39% of CenterPoint Houston’s transmission and distribution revenues in 2014, 2013 and 2012, respectively.  Sales to REPs that are affiliates of Energy Future Holdings Corp. (Energy Future Holdings) represented approximately 10% of CenterPoint Houston’s transmission and distribution revenues in each of 2014, 2013 and 2012.  CenterPoint Houston’s aggregate billed receivables balance from REPs as of December 31, 2014 was $195 million.  Approximately 36% and 10% of this amount was owed by affiliates of NRG and Energy Future Holdings, respectively. CenterPoint Houston does not have long-term contracts with any of its customers. It operates using a continuous billing cycle, with meter readings being conducted and invoices being distributed to REPs each business day.

Advanced Metering System and Distribution Grid Automation (Intelligent Grid)

In May 2012, CenterPoint Houston substantially completed the deployment of an advanced metering system (AMS), having installed approximately 2.2 million smart meters. To recover the cost of the AMS, the Texas Utility Commission approved a monthly surcharge payable by REPs, initially over 12 years and later reduced to six years as a result of U.S. Department of Energy (DOE) grant funds. The surcharge is currently set to expire in 2015 for residential customers and in 2016 to 2017 for non-residential customers. The surcharge amounts and duration are subject to adjustment in future proceedings to reflect actual costs incurred and to address required changes in scope. 

CenterPoint Houston is also pursuing deployment of an electric distribution grid automation strategy that involves the implementation of an “Intelligent Grid” (IG) which would provide on-demand data and information about the status of facilities on its system. We expect to include the costs of the deployment in future rate proceedings before the Texas Utility Commission.

In October 2009, the DOE selected CenterPoint Houston for a $200 million grant to help fund its AMS and IG projects.  CenterPoint Houston received substantially all of the $200 million of grant funding from the DOE by 2011 and used $150 million of it to accelerate completion of its deployment of advanced meters to 2012. CenterPoint Houston is using the other $50 million from the grant for an initial deployment of an IG that covers approximately 12% of its service territory. The DOE-funded portion of the IG project is expected to be completed in 2015, and the capital portion of the IG project subject to partial funding by the DOE will cost approximately $140 million.

Competition

There are no other electric transmission and distribution utilities in CenterPoint Houston’s service area. In order for another provider of transmission and distribution services to provide such services in CenterPoint Houston’s territory, it would be required to obtain a certificate of convenience and necessity from the Texas Utility Commission and, depending on the location of the facilities, may also be required to obtain franchises from one or more municipalities. We know of no other party intending to enter this business in CenterPoint Houston’s service area at this time. Distributed generation (i.e., power generation located at or near the point of consumption) could result in a reduction of demand for CenterPoint Houston’s electric distribution services but has not been a significant factor to date.

Seasonality

A significant portion of CenterPoint Houston’s revenues is derived from rates that it collects from each REP based on the amount of electricity it delivers on behalf of such REP. Thus, CenterPoint Houston’s revenues and results of operations are subject to seasonality, weather conditions and other changes in electricity usage, with revenues generally being higher during the warmer months.

Properties

All of CenterPoint Houston’s properties are located in Texas. Its properties consist primarily of high-voltage electric transmission lines and poles, distribution lines, substations, service centers, service wires and meters. Most of CenterPoint Houston’s

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transmission and distribution lines have been constructed over lands of others pursuant to easements or along public highways and streets as permitted by law.

All real and tangible properties of CenterPoint Houston, subject to certain exclusions, are currently subject to:

• the lien of a Mortgage and Deed of Trust (the Mortgage) dated November 1, 1944, as supplemented; and

• the lien of a General Mortgage (the General Mortgage) dated October 10, 2002, as supplemented, which is junior to the lien of the Mortgage.

As of December 31, 2014, CenterPoint Houston had approximately $2.4 billion aggregate principal amount of general mortgage bonds outstanding under the General Mortgage, including (a) $290 million held in trust to secure pollution control bonds that are not reflected in our consolidated financial statements because we are both the obligor on the bonds and the current owner of the bonds, (b) approximately $56 million held in trust to secure pollution control bonds that are not reflected on our financial statements because CenterPoint Houston is both the obligor on the bonds and the current owner of the bonds, and (c) approximately $118 million held in trust to secure pollution control bonds for which we are obligated. Additionally, as of December 31, 2014, CenterPoint Houston had approximately $102 million aggregate principal amount of first mortgage bonds outstanding under the Mortgage. CenterPoint Houston may issue additional general mortgage bonds on the basis of retired bonds, 70% of property additions or cash deposited with the trustee. Approximately $3.9 billion of additional first mortgage bonds and general mortgage bonds in the aggregate could be issued on the basis of retired bonds and 70% of property additions as of December 31, 2014. However, CenterPoint Houston has contractually agreed that it will not issue additional first mortgage bonds, subject to certain exceptions.

Electric Lines - Overhead.  As of December 31, 2014, CenterPoint Houston owned 28,282 pole miles of overhead distribution lines and 3,719 circuit miles of overhead transmission lines, including 342 circuit miles operated at 69,000 volts, 2,161 circuit miles operated at 138,000 volts and 1,216 circuit miles operated at 345,000 volts.

Electric Lines - Underground.  As of December 31, 2014, CenterPoint Houston owned 22,435 circuit miles of underground distribution lines and 26 circuit miles of underground transmission lines, including 2 circuit miles operated at 69,000 volts and 24 circuit miles operated at 138,000 volts.

Substations.  As of December 31, 2014, CenterPoint Houston owned 236 major substation sites having a total installed rated transformer capacity of 57,477 megavolt amperes.

Service Centers.  CenterPoint Houston operates 14 regional service centers located on a total of 291 acres of land. These service centers consist of office buildings, warehouses and repair facilities that are used in the business of transmitting and distributing electricity.

Franchises

CenterPoint Houston holds non-exclusive franchises from the incorporated municipalities in its service territory. In exchange for the payment of fees, these franchises give CenterPoint Houston the right to use the streets and public rights-of-way of these municipalities to construct, operate and maintain its transmission and distribution system and to use that system to conduct its electric delivery business and for other purposes that the franchises permit. The terms of the franchises, with various expiration dates, typically range from 20 to 40 years.

Natural Gas Distribution

CERC Corp.’s natural gas distribution business (NGD) engages in regulated intrastate natural gas sales to, and natural gas transportation for, approximately 3.4 million residential, commercial, industrial and transportation customers in Arkansas, Louisiana, Minnesota, Mississippi, Oklahoma and Texas. The largest metropolitan areas served in each state by NGD are Houston, Texas; Minneapolis, Minnesota; Little Rock, Arkansas; Shreveport, Louisiana; Biloxi, Mississippi; and Lawton, Oklahoma. In 2014, approximately 42% of NGD’s total throughput was to residential customers and approximately 58% was to commercial and industrial and transportation customers.

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The table below reflects the number of natural gas distribution customers by state as of December 31, 2014:

	Residential	Commercial/ Industrial	Total Customers
Arkansas	381,800	48,521	430,321
Louisiana	230,990	17,076	248,066
Minnesota	762,736	69,089	831,825
Mississippi	111,638	12,618	124,256
Oklahoma	90,974	10,827	101,801
Texas	1,546,404	91,141	1,637,545
Total NGD	3,124,542	249,272	3,373,814

NGD also provides unregulated services in Minnesota consisting of residential appliance repair and maintenance services along with heating, ventilating and air conditioning (HVAC) equipment sales.

Seasonality

The demand for intrastate natural gas sales to residential customers and natural gas sales and transportation for commercial and industrial customers is seasonal. In 2014, approximately 71% of the total throughput of NGD’s business occurred in the first and fourth quarters. These patterns reflect the higher demand for natural gas for heating purposes during the colder months.

Supply and Transportation.  In 2014, NGD purchased virtually all of its natural gas supply pursuant to contracts with remaining terms varying from a few months to four years. Major suppliers in 2014 included BP Energy Company/BP Canada Energy Marketing (15.8% of supply volumes), Tenaska Marketing Ventures (13.9%), Sequent Energy Management (9.0%), Cargill (7.4%), Macquarie Energy (6.4%), Kinder Morgan Tejas Pipeline/Kinder Morgan Texas Pipeline (6.3%), Conoco Phillips (5.2%), Centerpoint Energy Services (4.9%), Mieco (3.5%), and Munich Re Weather & Commodity Risk Holding (2.5%). Numerous other suppliers provided the remaining 25% of NGD’s natural gas supply requirements. NGD transports its natural gas supplies through various intrastate and interstate pipelines, including those owned by our other subsidiaries and affiliates, under contracts with remaining terms, including extensions, varying from one to ten years. NGD anticipates that these gas supply and transportation contracts will be renewed or replaced prior to their expiration.

NGD actively engages in commodity price stabilization pursuant to annual gas supply plans presented to and/or filed with each of its state regulatory authorities. These price stabilization activities include use of storage gas and contractually establishing structured prices (e.g., fixed price, costless collars and caps) with our physical gas suppliers. Its gas supply plans generally call for 50-75% of winter supplies to be stabilized in some fashion.

The regulations of the states in which NGD operates allow it to pass through changes in the cost of natural gas, including savings and costs of financial derivatives associated with the index-priced physical supply, to its customers under purchased gas adjustment provisions in its tariffs. Depending upon the jurisdiction, the purchased gas adjustment factors are updated periodically, ranging from monthly to semi-annually. The changes in the cost of gas billed to customers are subject to review by the applicable regulatory bodies.

NGD uses various third-party storage services or owned natural gas storage facilities to meet peak-day requirements and to manage the daily changes in demand due to changes in weather and may also supplement contracted supplies and storage from time to time with stored liquefied natural gas and propane-air plant production.

NGD owns and operates an underground natural gas storage facility with a capacity of 7.0 billion cubic feet (Bcf). It has a working capacity of 2.0 Bcf available for use during the heating season and a maximum daily withdrawal rate of 50 million cubic feet (MMcf). It also owns eight propane-air plants with a total production rate of 180,000 Dekatherms (DTH) per day and on-site storage facilities for 12 million gallons of propane (1.0 Bcf natural gas equivalent). It owns a liquefied natural gas plant facility with a 12 million-gallon liquefied natural gas storage tank (1.0 Bcf natural gas equivalent) and a production rate of 72,000 DTH per day.

On an ongoing basis, NGD enters into contracts to provide sufficient supplies and pipeline capacity to meet its customer requirements. However, it is possible for limited service disruptions to occur from time to time due to weather conditions, transportation constraints and other events. As a result of these factors, supplies of natural gas may become unavailable from time to time, or prices may increase rapidly in response to temporary supply constraints or other factors.

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NGD has entered into various asset management agreements associated with its utility distribution service in Arkansas, Louisiana, Mississippi, Oklahoma and Texas.  Generally, these asset management agreements are contracts between NGD and an asset manager that are intended to transfer the working capital obligation and maximize the utilization of the assets. In these agreements, NGD agreed to release transportation and storage capacity to other parties to manage gas storage, supply and delivery arrangements for NGD and to use the released capacity for other purposes when it is not needed for NGD. NGD is compensated by the asset manager through payments made over the life of the agreements based in part on the results of the asset optimization.  NGD has received approval from the state regulatory commissions in Arkansas, Louisiana, Mississippi and Oklahoma to retain a share of the asset management agreement proceeds. The agreements have varying terms, the longest of which expires in 2018.

Assets

As of December 31, 2014, NGD owned approximately 73,000 linear miles of natural gas distribution mains, varying in size from one-half inch to 24 inches in diameter. Generally, in each of the cities, towns and rural areas served by NGD, it owns the underground gas mains and service lines, metering and regulating equipment located on customers’ premises and the district regulating equipment necessary for pressure maintenance. With a few exceptions, the measuring stations at which NGD receives gas are owned, operated and maintained by others, and its distribution facilities begin at the outlet of the measuring equipment. These facilities, including odorizing equipment, are usually located on land owned by suppliers.

Competition

NGD competes primarily with alternate energy sources such as electricity and other fuel sources. In some areas, intrastate pipelines, other gas distributors and marketers also compete directly for gas sales to end-users. In addition, as a result of federal regulations affecting interstate pipelines, natural gas marketers operating on these pipelines may be able to bypass NGD’s facilities and market and sell and/or transport natural gas directly to commercial and industrial customers.

Energy Services

CERC offers variable and fixed-priced physical natural gas supplies primarily to commercial and industrial customers and electric and gas utilities through CenterPoint Energy Services, Inc. (CES) and its subsidiary, CenterPoint Energy Intrastate Pipelines, LLC (CEIP).

In 2014, CES marketed approximately 631 Bcf of natural gas, related energy services and transportation to approximately 18,000 customers (including approximately 18 Bcf to affiliates) in 23 states. CES customers vary in size from small commercial customers to large utility companies.

CES offers a variety of natural gas management services to gas utilities, large industrial customers, electric generators, smaller commercial and industrial customers, municipalities, educational institutions and hospitals. These services include load forecasting, supply acquisition, daily swing volume management, invoice consolidation, storage asset management, firm and interruptible transportation administration and forward price management. CES also offers a portfolio of physical delivery services designed to meet customers’ supply and price risk management needs. These customers are served directly, through interconnects with various interstate and intrastate pipeline companies, and portably, through our mobile energy solutions business.

In addition to offering natural gas management services, CES procures and optimizes transportation and storage assets. CES maintains a portfolio of natural gas supply contracts and firm transportation and storage agreements to meet the natural gas requirements of its customers. CES aggregates supply from various producing regions and offers contracts to buy natural gas with terms ranging from one month to over five years. In addition, CES actively participates in the spot natural gas markets in an effort to balance daily and monthly purchases and sales obligations. Natural gas supply and transportation capabilities are leveraged through contracts for ancillary services including physical storage and other balancing arrangements.

As described above, CES offers its customers a variety of load following services. In providing these services, CES uses its customers’ purchase commitments to forecast and arrange its own supply purchases, storage and transportation services to serve customers’ natural gas requirements. As a result of the variance between this forecast activity and the actual monthly activity, CES will either have too much supply or too little supply relative to its customers’ purchase commitments. These supply imbalances arise each month as customers’ natural gas requirements are scheduled and corresponding natural gas supplies are nominated by CES for delivery to those customers. CES’ processes and risk control environment are designed to measure and value imbalances on a real-time basis to ensure that CES’ exposure to commodity price risk is kept to a minimum. The value assigned to these imbalances is calculated daily and is known as the aggregate Value at Risk (VaR).

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Our risk control policy, which is overseen by our Risk Oversight Committee, defines authorized and prohibited trading instruments and trading limits. CES is a physical marketer of natural gas and uses a variety of tools, including pipeline and storage capacity, financial instruments and physical commodity purchase contracts, to support its sales. The CES business optimizes its use of these various tools to minimize its supply costs and does not engage in proprietary or speculative commodity trading. The VaR limit within which CES currently operates, a $4 million maximum, is consistent with CES’ operational objective of matching its aggregate sales obligations (including the swing associated with load following services) with its supply portfolio in a manner that minimizes its total cost of supply. In 2014, CES’ VaR averaged $0.3 million with a high of $1.7 million.

Assets

CEIP owns and operates over 200 miles of intrastate pipeline in Louisiana and Texas. In addition, CES leases transportation capacity on various interstate and intrastate pipelines and storage to service its shippers and end-users.

Competition

CES competes with regional and national wholesale and retail gas marketers, including the marketing divisions of natural gas producers and utilities. In addition, CES competes with intrastate pipelines for customers and services in its market areas.

Midstream Investments

On March 14, 2013, we entered into a Master Formation Agreement (MFA) with OGE Energy Corp. (OGE) and affiliates of ArcLight Capital Partners, LLC (ArcLight), pursuant to which we, OGE and ArcLight agreed to form Enable, initially a private limited partnership. On May 1, 2013, the parties closed on the formation of Enable pursuant to which Enable became the owner of substantially all of (i) CERC Corp.’s former Interstate Pipelines and Field Services businesses and (ii) Enogex LLC’s midstream assets, which were contributed by OGE and ArcLight.

On April 16, 2014, Enable completed its initial public offering (IPO) of 28,750,000 common units at a price of $20.00 per unit, which included 3,750,000 common units sold by ArcLight pursuant to an over-allotment option that was fully exercised by the underwriters. Enable received $464 million in net proceeds from the sale of the units, after deducting underwriting fees, structuring fees and other offering costs. In connection with Enable’s IPO, a portion of our common units were converted into subordinated units. As of December 31, 2014, CERC Corp. held an approximate 55.4% limited partner interest in Enable (consisting of 94,126,366 common units and 139,704,916 subordinated units) and OGE held an approximate 26.3% limited partner interest in Enable (consisting of 42,832,291 common units and 68,150,514 subordinated units). Sales of more than 5% of our limited partner interest in Enable or sales by OGE of more than 5% of its limited partner interest in Enable are subject to mutual rights of first offer and first refusal.

Enable is controlled jointly by CERC Corp. and OGE as each own 50% of the management rights in the general partner of Enable. Sale of our ownership interests in Enable’s general partner to anyone other than an affiliate prior to May 1, 2016 is prohibited by Enable’s general partner’s limited liability company agreement.  Sale of our or OGE’s ownership interests in Enable’s general partner to a third party is subject to mutual rights of first offer and first refusal, and we are not permitted to dispose of less than all of our interest in Enable’s general partner.

As of December 31, 2014, CERC Corp. and OGE also own a 40% and 60% interest, respectively, in the incentive distribution rights held by the general partner of Enable. Enable is expected to pay a minimum quarterly distribution of $0.2875 per unit on its outstanding units to the extent it has sufficient cash from operations after establishment of cash reserves and payment of fees and expenses, including payments to its general partner and its affiliates, within 45 days after the end of each quarter. If cash distributions to Enable’s unitholders exceed $0.330625 per unit in any quarter, the general partner will receive increasing percentages or incentive distributions rights, up to 50%, of the cash Enable distributes in excess of that amount. In certain circumstances the general partner of Enable will have the right to reset the minimum quarterly distribution and the target distribution levels at which the incentive distributions receive increasing percentages to higher levels based on Enable’s cash distributions at the time of the exercise of this reset election.

Our investment in Enable and our 0.1% interest in Southeast Supply Header, LLC (SESH) are accounted for on an equity basis. Equity earnings associated with our interest in Enable and SESH are reported under the Midstream Investments segment.

Enable. Enable was formed to own, operate and develop strategically located natural gas and crude oil infrastructure assets. Enable serves current and emerging production areas in the United States, including several unconventional shale resource plays and local and regional end-user markets in the United States. Enable’s assets and operations are organized into two reportable segments: (i) gathering and processing, which primarily provides natural gas gathering, processing and fractionation services and

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crude oil gathering for its producer customers, and (ii) transportation and storage, which provides interstate and intrastate natural gas pipeline transportation and storage service primarily to natural gas producers, utilities and industrial customers.

Enable’s natural gas gathering and processing assets are located in four states and serve natural gas production from shale developments in the Anadarko, Arkoma and Ark-La-Tex basins. Enable also owns a crude oil gathering business in the Bakken Shale formation of the Williston Basin that commenced initial operations in November 2013. Enable’s natural gas transportation and storage assets extend from western Oklahoma and the Texas Panhandle to Alabama and from Louisiana to Illinois.

As of December 31, 2014, Enable’s portfolio of energy infrastructure assets included approximately 11,900 miles of gathering pipelines, 12 major processing plants with approximately 2.1 billion cubic feet (Bcf) per day of processing capacity, approximately 7,900 miles of interstate pipelines (including SESH), approximately 2,300 miles of intrastate pipelines and eight storage facilities providing approximately 87.5 Bcf of storage capacity.

Enable’s Gathering and Processing segment. Enable provides gathering, compression, treating, dehydration, processing and natural gas liquids (NGL) fractionation for producers who are active in the areas in which Enable operates. Seven of Enable’s processing plants in the Anadarko basin are interconnected through its super-header system. Enable has configured this system to facilitate the flow of natural gas from western Oklahoma and the Wheeler County area in the Texas Panhandle to the Cox City, Thomas, McClure, Calumet, Clinton, South Canadian and Wheeler processing plants. Enable is currently constructing two cryogenic processing facilities that it plans to connect to the super-header system in Grady County, Oklahoma, which are expected to add 400 MMcf per day of natural gas processing capacity. The first of the two new plants (the Bradley Plant) is a 200 MMcf per day plant that is expected to be completed in the first quarter of 2015. The second plant (the Grady County Plant) is a 200 MMcf per day plant that is expected to be completed in the first quarter of 2016.

Enable’s gathering and processing systems compete with gatherers and processors of all types and sizes, including those affiliated with various producers, other major pipeline companies and various independent midstream entities. In the process of selling natural gas liquids (NGLs), Enable competes against other natural gas processors extracting and selling NGLs. Enable’s primary competitors are master limited partnerships who are active in the regions where it operates.

Enable’s Transportation and Storage segment. Enable provides fee-based interstate and intrastate transportation and storage services across nine states. Enable’s transportation and storage assets were designed and built to serve large natural gas and electric utility companies in its areas of operation. Enable owns and operates approximately 7,900 miles (including SESH) of interstate transportation pipelines. In addition, Enable owns and operates approximately 2,300 miles of intrastate transportation pipelines. Its natural gas assets extend from western Oklahoma and the Texas Panhandle to Alabama and from Louisiana to Illinois. Enable also owns eight natural gas storage facilities in Oklahoma, Louisiana and Illinois with approximately 87.5 Bcf of aggregate storage capacity.

Enable’s interstate pipelines compete with other interstate and intrastate pipelines. Enable’s intrastate pipeline system competes with numerous interstate and intrastate pipelines, including several of the interconnected pipelines discussed above, as well as other natural gas storage facilities. The principal elements of competition among pipelines are rates, terms of service, and flexibility and reliability of service.

SESH. CenterPoint Southeastern Pipelines Holding, LLC, a wholly owned subsidiary of CERC, owned a 0.1% interest in SESH as of December 31, 2014. SESH owns a 1.0 Bcf per day, 286-mile interstate pipeline that runs from the Perryville Hub in Louisiana to Coden, Alabama. The pipeline was placed into service in the third quarter of 2008. The rates charged by SESH for interstate transportation services are regulated by the FERC.

On each of May 1, 2013 and May 30, 2014, we contributed a 24.95% interest in SESH to Enable. CERC has certain put rights, and Enable has certain call rights, exercisable with respect to the 0.1% interest in SESH retained by CERC, under which CERC would contribute its retained interest in SESH, in exchange for a specified number of limited partner units in Enable and a cash payment, payable either from CERC to Enable or from Enable to CERC, for changes in the value of SESH. Affiliates of Spectra Energy Corp own the remaining 50% interest in SESH.

Other Operations

Our Other Operations business segment includes office buildings and other real estate used in our business operations and other corporate operations that support all of our business operations.

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Financial Information About Segments

For financial information about our segments, see Note 17 to our consolidated financial statements, which note is incorporated herein by reference.

REGULATION

We are subject to regulation by various federal, state and local governmental agencies, including the regulations described below.

Federal Energy Regulatory Commission

The FERC has jurisdiction under the Natural Gas Act and the Natural Gas Policy Act of 1978, as amended, to regulate the transportation of natural gas in interstate commerce and natural gas sales for resale in interstate commerce that are not first sales. The FERC regulates, among other things, the construction of pipeline and related facilities used in the transportation and storage of natural gas in interstate commerce, including the extension, expansion or abandonment of these facilities. The FERC has authority to prohibit market manipulation in connection with FERC-regulated transactions and to impose significant civil and criminal penalties for statutory violations and violations of the FERC’s rules or orders. Our Energy Services business segment markets natural gas in interstate commerce pursuant to blanket authority granted by the FERC.

CenterPoint Houston is not a “public utility” under the Federal Power Act and, therefore, is not generally regulated by the FERC, although certain of its transactions are subject to limited FERC jurisdiction. The FERC has certain responsibilities with respect to ensuring the reliability of electric transmission service, including transmission facilities owned by CenterPoint Houston and other utilities within ERCOT. The FERC has designated the NERC as the Electric Reliability Organization (ERO) to promulgate standards, under FERC oversight, for all owners, operators and users of the bulk power system (Electric Entities). The ERO and the FERC have authority to (a) impose fines and other sanctions on Electric Entities that fail to comply with approved standards and (b) audit compliance with approved standards. The FERC has approved the delegation by the NERC of authority for reliability in ERCOT to the TRE. CenterPoint Houston does not anticipate that the reliability standards proposed by the NERC and approved by the FERC will have a material adverse impact on its operations. To the extent that CenterPoint Houston is required to make additional expenditures to comply with these standards, it is anticipated that CenterPoint Houston will seek to recover those costs through the transmission charges that are imposed on all distribution service providers within ERCOT for electric transmission provided.

As a public utility holding company, under the Public Utility Holding Company Act of 2005, we and our consolidated subsidiaries are subject to reporting and accounting requirements and are required to maintain certain books and records and make them available for review by the FERC and state regulatory authorities in certain circumstances.

State and Local Regulation – Electric Transmission & Distribution

CenterPoint Houston conducts its operations pursuant to a certificate of convenience and necessity issued by the Texas Utility Commission that covers its present service area and facilities. The Texas Utility Commission and municipalities have the authority to set the rates and terms of service provided by CenterPoint Houston under cost-of-service rate regulation. CenterPoint Houston holds non-exclusive franchises from the incorporated municipalities in its service territory. In exchange for payment of fees, these franchises give CenterPoint Houston the right to use the streets and public rights-of-way of these municipalities to construct, operate and maintain its transmission and distribution system and to use that system to conduct its electric delivery business and for other purposes that the franchises permit. The terms of the franchises, with various expiration dates, typically range from 20 to 40 years.

CenterPoint Houston’s distribution rates charged to REPs for residential customers are primarily based on amounts of energy delivered, whereas distribution rates for a majority of commercial and industrial customers are primarily based on peak demand. All REPs in CenterPoint Houston’s service area pay the same rates and other charges for transmission and distribution services. This regulated delivery charge includes the transmission and distribution rate (which includes municipal franchise fees), a nuclear decommissioning charge associated with decommissioning the South Texas nuclear generating facility, an energy efficiency cost recovery charge, a surcharge related to the implementation of AMS and charges associated with securitization of regulatory assets, stranded costs and restoration costs relating to Hurricane Ike. Transmission rates charged to distribution companies are based on amounts of energy transmitted under “postage stamp” rates that do not vary with the distance the energy is being transmitted. All distribution companies in ERCOT pay CenterPoint Houston the same rates and other charges for transmission services.

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For a discussion of certain of CenterPoint Houston’s ongoing regulatory proceedings, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources — Regulatory Matters — CenterPoint Houston” in Item 7 of Part II of this report, which discussion is incorporated herein by reference.

State and Local Regulation – Natural Gas Distribution

In almost all communities in which NGD provides natural gas distribution services, it operates under franchises, certificates or licenses obtained from state and local authorities. The original terms of the franchises, with various expiration dates, typically range from 10 to 30 years, although franchises in Arkansas are perpetual. NGD expects to be able to renew expiring franchises. In most cases, franchises to provide natural gas utility services are not exclusive.

Substantially all of NGD is subject to cost-of-service rate regulation by the relevant state public utility commissions and, in Texas, by the Railroad Commission of Texas (Railroad Commission) and those municipalities served by NGD that have retained original jurisdiction. In certain of its jurisdictions, NGD has in effect annual rate adjustment mechanisms that provide for changes in rates dependent upon certain changes in invested capital, earned returns on equity or actual margins realized.

For a discussion of certain of NGD’s ongoing regulatory proceedings, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources — Regulatory Matters — CERC” in Item 7 of Part II of this report, which discussion is incorporated herein by reference.

Department of Transportation

In December 2006, Congress enacted the Pipeline Inspection, Protection, Enforcement and Safety Act of 2006 (2006 Act), which reauthorized the programs adopted under the Pipeline Safety Improvement Act of 2002 (2002 Act). These programs included several requirements related to ensuring pipeline safety, and a requirement to assess the integrity of pipeline transmission facilities in areas of high population concentration.

Pursuant to the 2006 Act, the Pipeline and Hazardous Materials Safety Administration (PHMSA) at the Department of Transportation (DOT) issued regulations, effective February 12, 2010, requiring operators of gas distribution pipelines to develop and implement integrity management programs similar to those required for gas transmission pipelines, but tailored to reflect the differences in distribution pipelines. Operators of natural gas distribution systems were required to write and implement their integrity management programs by August 2, 2011. Our natural gas distribution systems met this deadline.

Pursuant to the 2002 Act and the 2006 Act, PHMSA has adopted a number of rules concerning, among other things, distinguishing between gathering lines and transmission facilities, requiring certain design and construction features in new and replaced lines to reduce corrosion and requiring pipeline operators to amend existing written operations and maintenance procedures and operator qualification programs. PHMSA also updated its reporting requirements for natural gas pipelines effective January 1, 2011.

In December 2011, Congress passed the Pipeline Safety, Regulatory Certainty, and Job Creation Act of 2011 (2011 Act). This act increases the maximum civil penalties for pipeline safety administrative enforcement actions; requires the DOT to study and report on the expansion of integrity management requirements and the sufficiency of existing gathering line regulations to ensure safety; requires pipeline operators to verify their records on maximum allowable operating pressure; and imposes new emergency response and incident notification requirements.

We anticipate that compliance with PHMSA’s regulations, performance of the remediation activities by CERC’s natural gas distribution companies and verification of records on maximum allowable operating pressure will require increases in both capital expenditures and operating costs. The level of expenditures will depend upon several factors, including age, location and operating pressures of the facilities. In particular, the cost of compliance with DOT’s integrity management rules will depend on integrity testing and the repairs found to be necessary by such testing. Changes to the amount of pipe subject to integrity management, whether by expansion of the definition of the type of areas subject to integrity management procedures or of the applicability of such procedures outside of those defined areas, may also affect the costs we incur. Implementation of the 2011 Act by PHMSA may result in other regulations or the reinterpretation of existing regulations that could impact our compliance costs. In addition, we may be subject to DOT’s enforcement actions and penalties if we fail to comply with pipeline regulations. Please also see the discussion under “— Midstream Investments — Safety and Health Regulation” below.

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Midstream Investments - Rate and Other Regulation

Federal, state, and local regulation of pipeline gathering and transportation services may affect certain aspects of Enable’s business and the market for its products and services.

Interstate Natural Gas Pipeline Regulation

Enable’s interstate pipeline systems — Enable Gas Transmission, LLC (EGT), Enable-Mississippi River Transmission, LLC (MRT) and SESH — are subject to regulation by FERC under the Natural Gas Act of 1938 (NGA) and are considered natural gas companies. Natural gas companies may not charge rates that have been determined to be unjust or unreasonable by the FERC. In addition, the FERC prohibits natural gas companies from unduly preferring or unreasonably discriminating against any person with respect to pipeline rates or terms and conditions of service. Under the NGA, the rates for service on Enable’s interstate facilities must be just and reasonable and not unduly discriminatory. Generally, the maximum filed recourse rates for interstate pipelines are based on the pipeline’s cost of service including recovery of and a return on the pipeline’s actual prudent investment cost. Key determinants in the ratemaking process are costs of providing service, allowed rate of return, volume throughput and contractual capacity commitment assumptions. Enable’s interstate pipelines business operations may be affected by changes in the demand for natural gas, the available supply and relative price of natural gas in the Mid-continent and Gulf Coast natural gas supply regions and general economic conditions. Tariff changes can only be implemented upon approval by the FERC.

Market Behavior Rules; Posting and Reporting Requirements

On August 8, 2005, Congress enacted the Energy Policy Act of 2005 (EPAct of 2005). Among other matters, the EPAct of 2005 amended the NGA to add an anti-manipulation provision that makes it unlawful for any entity to engage in prohibited behavior in contravention of rules and regulation to be prescribed by the FERC and, furthermore, provides the FERC with additional civil penalty authority. On January 19, 2006, the FERC issued Order No. 670, a rule implementing the anti-manipulation provisions of the EPAct of 2005. The rules make it unlawful for any entity, directly or indirectly in connection with the purchase or sale of natural gas subject to the jurisdiction of the FERC or the purchase or sale of transportation services subject to the jurisdiction of the FERC, to (1) use or employ any device, scheme or artifice to defraud; (2) to make any untrue statement of material fact or omit to make any such statement necessary to make the statements not misleading; or (3) to engage in any act or practice that operates as a fraud or deceit upon any person. The EPAct of 2005 also amends the NGA and the Natural Gas Policy Act of 1978 (NGPA) to give the FERC authority to impose civil penalties for violations of these statutes and FERC’s regulations, rules, and orders, up to $1 million per day per violation for violations occurring after August 8, 2005. Should Enable fail to comply with all applicable FERC-administered statutes, rules, regulations and orders, it could be subject to substantial penalties and fines. In addition, the Commodity Futures Trading Commission (CFTC) is directed under the Commodities Exchange Act (CEA) to prevent price manipulations for the commodity and futures markets, including the energy futures markets. Pursuant to the Dodd-Frank Act and other authority, the CFTC has adopted anti-market manipulation regulations that prohibit fraud and price manipulation in the commodity and futures markets. The CFTC also has statutory authority to seek civil penalties of up to the greater of $1 million or triple the monetary gain to the violator for violations of the anti-market manipulation sections of the CEA.

Intrastate Natural Gas Pipeline and Storage Regulation

Enable’s transmission lines are subject to state regulation of rates and terms of service. In Oklahoma, its intrastate pipeline system is subject to regulation by the Oklahoma Corporation Commission. Oklahoma has a non-discriminatory access requirement, which is subject to a complaint-based review. In Illinois, Enable’s intrastate pipeline system is subject to regulation by the Illinois Commerce Commission.

Intrastate natural gas transportation is largely regulated by the state in which the transportation takes place. An intrastate natural gas pipeline system may transport natural gas in interstate commerce provided that the rates, terms, and conditions of such transportation service comply with FERC regulation and Section 311 of the NGPA and Part 284 of the FERC’s regulations. The NGPA regulates, among other things, the provision of transportation and storage services by an intrastate natural gas pipeline on behalf of an interstate natural gas pipeline or a LDC served by an interstate natural gas pipeline. Under Section 311, rates charged for transportation must be fair and equitable, and amounts collected in excess of fair and equitable rates are subject to refund with interest. The rates under Section 311 are maximum rates and Enable may negotiate contractual rates at or below such maximum rates. Rates for service pursuant to Section 311 of the NGPA are generally subject to review and approval by FERC at least once every five years. Should the FERC determine not to authorize rates equal to or greater than Enable’s currently approved Section 311 rates, its business may be adversely affected.

Failure to observe the service limitations applicable to transportation services provided under Section 311, failure to comply with the rates approved by FERC for Section 311 service, or failure to comply with the terms and conditions of service established in the pipeline’s FERC-approved Statement of Operating Conditions could result in the assertion of federal NGA jurisdiction by

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FERC and/or the imposition of administrative, civil and criminal penalties, as described under “— Interstate Natural Gas Pipeline Regulation” above.  

Natural Gas Gathering Pipeline Regulation

Section 1(b) of the NGA exempts natural gas gathering facilities from the jurisdiction of the FERC. Although the FERC has not made formal determinations with respect to all of the facilities Enable considers to be gathering facilities, it believes that its natural gas pipelines meet the traditional tests that the FERC has used to determine that a pipeline is a gathering pipeline and is therefore not subject to FERC jurisdiction. The distinction between FERC-regulated transmission services and federally unregulated gathering services, however, has been the subject of substantial litigation, and the FERC determines whether facilities are gathering facilities on a case-by-case basis, so the classification and regulation of Enable’s gathering facilities is subject to change based on future determinations by the FERC, the courts or Congress. If the FERC were to consider the status of an individual facility and determine that the facility and/or services provided by it are not exempt from FERC regulation under the NGA and that the facility provides interstate service, the rates for, and terms and conditions of, services provided by such facility would be subject to regulation by the FERC under the NGA or the NGPA. Such regulation could decrease revenue, increase operating costs, and, depending upon the facility in question, could adversely affect Enable’s results of operations and cash flows. In addition, if any of Enable’s facilities were found to have provided services or otherwise operated in violation of the NGA or NGPA, this could result in the imposition of civil penalties as well as a requirement to disgorge charges collected for such service in excess of the rate established by the FERC.

States may regulate gathering pipelines. State regulation of gathering facilities generally includes various safety, environmental and, in some circumstances, requirements prohibiting undue discrimination, and in some instances complaint-based rate regulation. Enable’s gathering operations may be subject to ratable take and common purchaser statutes in the states in which they operate. These statutes are designed to prohibit discrimination in favor of one producer over another producer or one source of supply over another source of supply and have the effect of restricting Enable’s right as an owner of gathering facilities to decide with whom it contracts to purchase or transport natural gas.

Enable’s gathering operations could be adversely affected should they be subject in the future to the application of state or federal regulation of rates and services. Enable’s gathering operations could also be subject to additional safety and operational regulations relating to the design, construction, testing, operation, replacement and maintenance of gathering facilities. Additional rules and legislation pertaining to these matters are considered or adopted from time to time. We cannot predict what effect, if any, such changes might have on Enable’s operations, but the industry could be required to incur additional capital expenditures and increased costs depending on future legislative and regulatory changes.  

Crude Oil Gathering Regulation

Enable provides interstate transportation on its crude oil gathering system in North Dakota pursuant to a public tariff in accordance with FERC regulatory requirements. Crude oil gathering pipelines that provide interstate transportation service may be regulated as a common carrier by the FERC under the Interstate Commerce Act (ICA), the Energy Policy Act of 1992, and the rules and regulations promulgated under those laws. The ICA and FERC regulations require that rates for interstate service pipelines that transport crude oil and refined petroleum products (collectively referred to as “petroleum pipelines”) and certain other liquids, be just and reasonable and are to be non-discriminatory or not confer any undue preference upon any shipper. FERC regulations also require interstate common carrier petroleum pipelines to file with the FERC and publicly post tariffs stating their interstate transportation rates and terms and conditions of service. Under the ICA, the FERC or interested persons may challenge existing or changed rates or services. The FERC is authorized to investigate such charges and may suspend the effectiveness of a new rate for up to seven months. A successful rate challenge could result in a common carrier paying refunds together with interest for the period that the rate was in effect. The FERC may also order a pipeline to change its rates, and may require a common carrier to pay shippers reparations for damages sustained for a period up to two years prior to the filing of a complaint.  

For some time now, the FERC has been issuing regulatory assurances that necessarily balance the anti-discrimination and undue preference requirements of common carriage with the expectations of investors in new and expanding petroleum pipelines. There is an inherent tension between the requirements imposed upon a common carrier and the need for owners of petroleum pipelines to be able to enter into long-term, firm contracts with shippers willing to make the commitments which underpin such large capital investments. The FERC’s solution has been to allow carriers to hold an “open season” prior to the in-service date of pipeline, during which time interested shippers can make commitments to the proposed pipeline project. Throughput commitments from interested shippers during an open season can be for firm service or for non-firm service. Typically, such an open season is for a 30-day period, must be publicly announced, and culminates in interested parties entering into transportation agreements with the carrier. Under FERC precedent, a carrier typically may reserve up to 90% of available capacity for the provision of firm service to shippers making a commitment. At least 10% of capacity ordinarily is reserved for “walk-up” shippers.

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Midstream Investments - Safety and Health Regulation

Certain of Enable’s facilities are subject to pipeline safety regulations. PHMSA regulates safety requirements in the design, construction, operation and maintenance of jurisdictional natural gas and hazardous liquid pipeline facilities. All natural gas transmission facilities, such as Enable’s interstate natural gas pipelines, are subject to PHMSA’s pipeline safety regulations, but natural gas gathering pipelines are subject to the pipeline safety regulations only to the extent they are classified as regulated gathering pipelines. In addition, several NGL pipeline facilities and crude oil pipeline facilities are regulated as hazardous liquids pipelines. Pursuant to various federal statutes, including the Natural Gas Pipeline Safety Act of 1968 (NGPSA) the DOT, through PHMSA, regulates pipeline safety and integrity. NGL and crude oil pipelines are subject to regulation by PHMSA under the Hazardous Liquid Pipeline Safety Act which requires PHMSA to develop, prescribe, and enforce minimum federal safety standards for the transportation of hazardous liquids by pipeline, and comparable state statutes with respect to design, installation, testing, construction, operation, replacement and management of pipeline facilities. PHMSA has developed regulations that require natural gas pipeline operators to implement integrity management programs, including more frequent inspections and other measures to ensure pipeline safety in high consequence areas (HCAs). Although many of Enable’s pipeline facilities fall within a class that is currently not subject to these integrity management requirements, Enable may incur significant costs and liabilities associated with repair, remediation, preventive or mitigating measures associated with its non-exempt pipelines. Additionally, should Enable fail to comply with DOT or comparable state regulations, it could be subject to penalties and fines. If future DOT pipeline integrity management regulations were to require that Enable expand its integrity managements program to currently unregulated pipelines, including gathering lines, its costs associated with compliance may have a material effect on its operations.

ENVIRONMENTAL MATTERS

Our operations and the operations of Enable are subject to stringent and complex laws and regulations pertaining to the environment. As an owner or operator of natural gas distribution systems, electric transmission and distribution systems, and the facilities that support these systems, we must comply with these laws and regulations at the federal, state and local levels. These laws and regulations can restrict or impact our business activities in many ways, such as:

• restricting the way we can handle or dispose of wastes;

• limiting or prohibiting construction activities in sensitive areas such as wetlands, coastal regions or areas inhabited by endangered species;

• requiring remedial action to mitigate environmental conditions caused by our operations or attributable to former operations;

• enjoining the operations of facilities with permits issued pursuant to such environmental laws and regulations; and

• impacting the demand for our services by directly or indirectly affecting the use or price of natural gas.

In order to comply with these requirements, we may need to spend substantial amounts and devote other resources from time to time to, among other activities:

• construct or acquire new facilities and equipment;

• acquire permits for facility operations;

• modify, upgrade or replace existing and proposed equipment; and

• clean or decommission waste disposal areas, fuel storage and management facilities and other locations and facilities.

Failure to comply with these laws and regulations may trigger a variety of administrative, civil and criminal enforcement measures, including the assessment of monetary penalties, the imposition of remedial actions and the issuance of orders enjoining future operations. Certain environmental statutes impose strict, joint and several liability for costs required to clean up and restore sites where hazardous substances have been stored, disposed or released. Moreover, it is not uncommon for neighboring landowners and other third parties to file claims for personal injury and property damage allegedly caused by the release of hazardous substances or other waste products into the environment.

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The recent trend in environmental regulation has been to place more restrictions and limitations on activities that may affect the environment, and thus there can be no assurance as to the amount or timing of future expenditures for environmental compliance or remediation, and actual future expenditures may be different from the amounts we currently anticipate. We try to anticipate future regulatory requirements that might be imposed and plan accordingly to remain in compliance with changing environmental laws and regulations and to ensure the costs of such compliance are reasonable.

Based on current regulatory requirements and interpretations, we do not believe that compliance with federal, state or local environmental laws and regulations will have a material adverse effect on our business, financial position, results of operations or cash flows. In addition, we believe that our current environmental remediation activities will not materially interrupt or diminish our operational ability. We cannot assure you that future events, such as changes in existing laws, the promulgation of new laws, or the development or discovery of new facts or conditions will not cause us to incur significant costs. The following is a discussion of material current environmental and safety laws and regulations that relate to our operations. We believe that we are in substantial compliance with these environmental laws and regulations.

Global Climate Change

In recent years, there has been increasing public debate regarding the potential impact on global climate change by various “greenhouse gases” (GHGs) such as carbon dioxide, a byproduct of burning fossil fuels, and methane, the principal component of the natural gas that we transport and deliver to customers. The United States Congress has, from time to time, considered adopting legislation to reduce emissions of GHGs, and there has been a wide-ranging policy debate, both nationally and internationally, regarding the impact of these gases and possible means for their regulation. Some of the proposals would require industrial sources to meet stringent new standards that would require substantial reductions in carbon emissions.  In addition, efforts have been made and continue to be made in the international community toward the adoption of international treaties or protocols that would address global climate change issues.  Following a finding by the U.S. Environmental Protection Agency (EPA) that certain GHGs represent an endangerment to human health, the EPA adopted two sets of rules regulating GHG emissions under the Clean Air Act. One requires a reduction in emissions of GHGs from motor vehicles beginning January 2, 2011.  The other regulates emissions of GHGs from certain large stationary sources under the Clean Air Act’s Prevention of Significant Deterioration and Title V programs, commencing when the motor vehicle standards took effect on January 2, 2011. Also, the EPA adopted its “Mandatory Reporting of Greenhouse Gases Rule” that requires the annual calculation and reporting of GHG emissions from natural gas transmission, gathering, processing and distribution systems and electric distribution systems that emit 25,000 metric tons or more of CO₂ equivalent per year.  These additional reporting requirements began in 2012 and we are currently in compliance. These permitting and reporting requirements could lead to further regulation of GHGs by the EPA.

Although the adoption of new legislation is uncertain, action by the EPA to impose new standards and reporting requirements regarding GHG emissions continues.  On January 14, 2015, the EPA announced that it will issue a proposed rule in the summer of 2015 and a final rule in 2016 setting standards for methane and volatile organic compound (VOC) emissions from new and modified oil and gas production sources and natural gas processing and transmission sources. As part of the same announcement, PHMSA stated that it will propose natural gas pipeline safety standards in 2015 that are expected to reduce methane emissions. Furthermore, in December 2014, the EPA proposed changes to its GHG reporting rule that would require additional reporting from natural gas transmission pipelines. In addition, many states and regions of the United States have begun to regulate GHGs. CERC’s revenues, operating costs and capital requirements could be adversely affected as a result of any regulatory action that would require installation of new control technologies or a modification of its operations or would have the effect of reducing the consumption of natural gas. Our electric transmission and distribution business, in contrast to some electric utilities, does not generate electricity and thus is not directly exposed to the risk of high capital costs and regulatory uncertainties that face electric utilities that burn fossil fuels to generate electricity.  Nevertheless, CenterPoint Houston’s revenues could be adversely affected to the extent any resulting regulatory action has the effect of reducing consumption of electricity by ultimate consumers within its service territory. Likewise, incentives to conserve energy or use energy sources other than natural gas could result in a decrease in demand for our services.  Conversely, regulatory actions that effectively promote the consumption of natural gas because of its lower emissions characteristics would be expected to beneficially affect CERC and its natural gas-related businesses.  At this point in time, however, it would be speculative to try to quantify the magnitude of the impacts from possible new regulatory actions related to GHG emissions, either positive or negative, on our businesses.

To the extent climate changes occur, our businesses may be adversely impacted, though we believe any such impacts are likely to occur very gradually and hence would be difficult to quantify.  To the extent global climate change results in warmer temperatures in our service territories, financial results from our natural gas distribution businesses could be adversely affected through lower gas sales, and Enable’s businesses could experience lower revenues.  On the other hand, warmer temperatures in our electric service territory may increase our revenues from transmission and distribution through increased demand for electricity for cooling.  Another possible effect of climate change is more frequent and more severe weather events, such as hurricanes or tornadoes.  Since many of our facilities are located along or near the Gulf Coast, increased or more severe hurricanes or tornadoes

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could increase our costs to repair damaged facilities and restore service to our customers. When we cannot deliver electricity or natural gas to customers, or our customers cannot receive our services, our financial results can be impacted by lost revenues, and we generally must seek approval from regulators to recover restoration costs.  To the extent we are unable to recover those costs, or if higher rates resulting from our recovery of such costs result in reduced demand for our services, our future financial results may be adversely impacted.

Air Emissions

Our operations and the operations of Enable are subject to the federal Clean Air Act and comparable state laws and regulations. These laws and regulations regulate emissions of air pollutants from various industrial sources, including processing plants and compressor stations, and also impose various monitoring and reporting requirements. Such laws and regulations may require pre-approval for the construction or modification of certain projects or facilities expected to produce air emissions or result in the increase of existing air emissions. We may be required to obtain and strictly comply with air permits containing various emissions and operational limitations, or utilize specific emission control technologies to limit emissions. Failure to comply with these requirements could result in monetary penalties, injunctions, conditions or restrictions on operations, and potentially criminal enforcement actions. We may be required to incur certain capital expenditures in the future for air pollution control equipment in connection with obtaining and maintaining operating permits and approvals for air emissions.

The EPA continues to adopt amendments to its regulations regarding maximum achievable control technology for stationary internal combustion engines (sometimes referred to as the RICE MACT rule), the most recent being January 14, 2013.  On August 29, 2013, the EPA announced that it was reconsidering three issues related to the RICE MACT rule, but on August 15, 2014, the EPA determined that it would not propose any changes to the regulations at this time. Compressors and back up electrical generators used by our Natural Gas Distribution segment, and back up electrical generators used by our Electric Transmission & Distribution segment, are generally compliant with existing regulations.

In addition, on August 16, 2012, the EPA published final rules that establish new air emission control requirements for natural gas and NGL production, processing and transportation activities, including New Source Performance Standards to address emissions of sulfur dioxide and volatile organic compounds, and National Emission Standards for Hazardous Air Pollutants (NESHAPS) to address hazardous air pollutants frequently associated with gas production and processing activities. The finalized regulations establish specific new requirements for emissions from compressors, controllers, dehydrators, storage tanks, gas processing plants and certain other equipment. The final rules under NESHAPS include maximum achievable control technology standards for “small” glycol dehydrators that are located at major sources of hazardous air pollutants and modifications to the leak detection standards for valves. Compliance with such rules is not expected to result in significant costs that would adversely impact our results of operations.

Water Discharges

Our operations and the operations of Enable are subject to the Federal Water Pollution Control Act of 1972, as amended, also known as the Clean Water Act, and analogous state laws and regulations. These laws and regulations impose detailed requirements and strict controls regarding the discharge of pollutants into waters of the United States. The unpermitted discharge of pollutants, including discharges resulting from a spill or leak incident, is prohibited. The Clean Water Act and regulations implemented thereunder also prohibit discharges of dredged and fill material in wetlands and other waters of the United States unless authorized by an appropriately issued permit. Any unpermitted release of petroleum or other pollutants from our pipelines or facilities could result in fines or penalties as well as significant remedial obligations.

Hazardous Waste

Our operations and the operations of Enable generate wastes, including some hazardous wastes, that are subject to the federal Resource Conservation and Recovery Act (RCRA), and comparable state laws, which impose detailed requirements for the handling, storage, treatment, transport and disposal of hazardous and solid waste. RCRA currently exempts many natural gas gathering and field processing wastes from classification as hazardous waste. Specifically, RCRA excludes from the definition of hazardous waste waters produced and other wastes associated with the exploration, development or production of crude oil and natural gas. However, these oil and gas exploration and production wastes are still regulated under state law and the less stringent non-hazardous waste requirements of RCRA. Moreover, ordinary industrial wastes such as paint wastes, waste solvents, laboratory wastes and waste compressor oils may be regulated as hazardous waste. The transportation of natural gas in pipelines may also generate some hazardous wastes that would be subject to RCRA or comparable state law requirements.

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Liability for Remediation

The Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended (CERCLA), also known as “Superfund,” and comparable state laws impose liability, without regard to fault or the legality of the original conduct, on certain classes of persons responsible for the release of hazardous substances into the environment. Such classes of persons include the current and past owners or operators of sites where a hazardous substance was released and companies that disposed or arranged for the disposal of hazardous substances at offsite locations such as landfills. Although petroleum, as well as natural gas, is excluded from CERCLA’s definition of a “hazardous substance,” in the course of our ordinary operations we generate wastes that may fall within the definition of a “hazardous substance.” CERCLA authorizes the EPA and, in some cases, third parties to take action in response to threats to the public health or the environment and to seek to recover from the responsible classes of persons the costs they incur. Under CERCLA, we could be subject to joint and several liability for the costs of cleaning up and restoring sites where hazardous substances have been released, for damages to natural resources, and for the costs of certain health studies.

Liability for Preexisting Conditions

Manufactured Gas Plant Sites. CERC and its predecessors operated manufactured gas plants (MGPs) in the past.  There are seven MGP sites in CERC’s Minnesota service territory.  CERC believes it never owned or operated, and therefore has no liability with respect to, two of these sites.  With respect to two other sites, CERC has completed state ordered remediation, other than ongoing monitoring and water treatment.

As of December 31, 2014, CERC had recorded a liability of $7 million for remediation of these Minnesota sites. The estimated range of possible remediation costs for the sites CERC believes it has responsibility for was $5 million to $29 million based on remediation continuing for 30 to 50 years. The cost estimates are based on studies of a site or industry average costs for remediation of sites of similar size. The actual remediation costs will be dependent upon the number of sites to be remediated, the participation of other potentially responsible parties (PRPs), if any, and the remediation methods used. As of December 31, 2014, CERC had collected $4 million from insurance companies to be used for future environmental remediation.

In addition to the Minnesota sites, the EPA and other regulators have investigated MGP sites that were owned or operated by CERC or may have been owned by one of its former affiliates. We and CERC do not expect the ultimate outcome of these investigations to have a material adverse effect on the financial condition, results of operations or cash flows of either us or CERC.

Asbestos. Some facilities owned by us contain or have contained asbestos insulation and other asbestos-containing materials. We or our subsidiaries have been named, along with numerous others, as defendants in lawsuits filed by a number of individuals who claim injury due to exposure to asbestos. Some of the claimants have worked at locations owned by us, but most existing claims relate to facilities previously owned by our subsidiaries. In 2004, we sold our generating business, to which most of these claims relate, to a company which is now an affiliate of NRG. Under the terms of the arrangements regarding separation of the generating business from us and our sale of that business, ultimate financial responsibility for uninsured losses from claims relating to the generating business has been assumed by the NRG affiliate, but we have agreed to continue to defend such claims to the extent they are covered by insurance maintained by us, subject to reimbursement of the costs of such defense by the NRG affiliate. We anticipate that additional claims like those received may be asserted in the future. Although their ultimate outcome cannot be predicted at this time, we intend to continue vigorously contesting claims that we do not consider to have merit and do not expect, based on our experience to date, these matters, either individually or in the aggregate, to have a material adverse effect on our financial condition, results of operations or cash flows.

Other Environmental. From time to time we identify the presence of environmental contaminants on property where we conduct or have conducted operations.  Other such sites involving contaminants may be identified in the future.  We have remediated and expect to continue to remediate identified sites consistent with our legal obligations. From time to time we have received notices from regulatory authorities or others regarding our status as a PRP in connection with sites found to require remediation due to the presence of environmental contaminants. In addition, we have been named from time to time as a defendant in litigation related to such sites. Although the ultimate outcome of such matters cannot be predicted at this time, we do not expect, based on our experience to date, these matters, either individually or in the aggregate, to have a material adverse effect on our financial condition, results of operations or cash flows.

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EMPLOYEES

As of December 31, 2014, we had 8,540 full-time employees, 1,113 of which were seconded to Enable and included below under the Midstream Investments business segment. As of January 1, 2015, following the transfer of substantially all of the previously seconded employees to Enable, we had 7,427 full-time employees, none of which were seconded to Enable.  The following table sets forth the number of our employees by business segment as of December 31, 2014:

Business Segment	Number	Number Represented by Collective Bargaining Groups
Electric Transmission & Distribution	2,650	1,308
Natural Gas Distribution	3,343	1,185
Energy Services	125	—
Midstream Investments	1,113	—
Other Operations	1,309	127
Total	8,540	2,620

As of December 31, 2014, approximately 31% of our employees were covered by collective bargaining agreements. The collective bargaining agreements with the Gas Workers Local Union 340 and International Brotherhood of Electrical Workers Local 949 in Minnesota, which collectively cover approximately 8% of our employees, are scheduled to expire in April and December 2015, respectively. We believe we have good relationships with these bargaining units and expect to negotiate new agreements in 2015.

EXECUTIVE OFFICERS

(as of February 20, 2015)

Name	Age	Title
Milton Carroll	64	Executive Chairman
Scott M. Prochazka	49	President and Chief Executive Officer and Director
Gary L. Whitlock	65	Executive Vice President and Chief Financial Officer
Tracy B. Bridge	56	Executive Vice President and President, Electric Division
Joseph B. McGoldrick	61	Executive Vice President and President, Gas Division
William D. Rogers	54	Executive Vice President, Finance and Accounting
Dana C. O’Brien	47	Senior Vice President, General Counsel and Corporate Secretary
Sue B. Ortenstone	57	Senior Vice President and Chief Human Resources Officer

Milton Carroll has served on the Board of Directors of CenterPoint Energy or its predecessors since 1992. He has served as Executive Chairman of CenterPoint Energy since June 2013 and as Chairman from September 2002 until May 2013. Mr. Carroll has served as a director of Halliburton Company since 2006, Western Gas Holdings, LLC, the general partner of Western Gas Partners, LP, since 2008 and LyondellBasell Industries N.V. since July 2010. He has served as a director of Healthcare Service Corporation since 1998 and as its chairman since 2002. He previously served as a director of LRE GP, LLC, general partner of LRR Energy, L.P., from November 2011 to January 2014.

Scott M. Prochazka has served as a Director and President and Chief Executive Officer (CEO) of CenterPoint Energy since January 1, 2014. He previously served as Executive Vice President and Chief Operating Officer from July 2012 to December 2013; as Senior Vice President and Division President, Electric Operations from May 2011 to July 2012; as Division Senior Vice President, Electric Operations of CenterPoint Houston from February 2009 to May 2011; as Division Senior Vice President Regional Operations of CERC from February 2008 to February 2009; and as Division Vice President, Customer Service Operations from October 2006 to February 2008. He currently serves on the Boards of Directors of Enable GP, LLC, the general partner of Enable Midstream Partners, LP, Gridwise Alliance, Edison Electric Institute, American Gas Association and Greater Houston Partnership.

Gary L. Whitlock has served as Executive Vice President and Chief Financial Officer of CenterPoint Energy since September 2002. Effective March 3, 2015, Mr. Whitlock will step down from this role and will continue to serve as a special adviser to the CEO. He served as Executive Vice President and Chief Financial Officer of the Delivery Group of Reliant Energy from July 2001

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to September 2002. Mr. Whitlock served as the Vice President, Finance and Chief Financial Officer of Dow AgroSciences, a subsidiary of The Dow Chemical Company, from 1998 to 2001. He currently serves on the Board of Directors of Enable GP, LLC, the general partner of Enable Midstream Partners, LP.

Tracy B. Bridge has served as Executive Vice President and President, Electric Division since February 2014. He previously served as Senior Vice President and Division President, Electric Operations from September 2012 to February 2014; as Senior Vice President and Division President, Gas Distribution Operations from May 2011 to September 2012; as Division Senior Vice President - Support Operations from February 2008 to May 2011; and as Division Vice President Regional Operations of CERC from January 2007 to February 2008. He currently serves on the Board of Directors of the Greater Houston Chapter of the American Red Cross and on the Board of Directors of Rebuilding Together Houston.

Joseph B. McGoldrick has served as Executive Vice President and President, Gas Division since February 2014. He previously served as Senior Vice President and Division President, Gas Operations from September 2012 to February 2014; as Senior Vice President and Division President, Energy Services from May 2011 to September 2012, and as Division President, Gas Operations from February 2007 to May 2011.

William D. Rogers has served as Executive Vice President, Finance and Accounting since February 2015. Effective March 3, 2015, he will serve as Executive Vice President and Chief Financial Officer. Prior to joining CenterPoint Energy, Mr. Rogers was Vice President and Treasurer of American Water Works Company, Inc., the largest publicly traded U.S. water and wastewater utility company, from October 2010 to January 2015. Mr. Rogers was also the Chief Financial Officer of NV Energy, Inc., an investor-owned utility headquartered in Las Vegas serving approximately 1.5 million electric and gas customers in Nevada and with annual revenues of approximately $3.0 billion, from February 2007 to February 2010. He has previously served as NV Energy’s vice president of finance, risk and tax, as well as corporate treasurer. Before joining NV Energy in June 2005, Mr. Rogers was a managing director in capital markets at Merrill Lynch and prior to that in a similar role at JPMorgan Chase in New York.

Dana C. O’Brien has served as Senior Vice President, General Counsel and Corporate Secretary of CenterPoint Energy since May 2014.  Before joining CenterPoint Energy, Ms. O’Brien was Chief Legal Officer and Chief Compliance Officer and a member of the executive board at CEVA Logistics, a Dutch-based logistics company, from August 2007 to April 2014.  She previously served as the general counsel at EGL, Inc. from October 2005 to July 2007 and Quanta Services, Inc. from January 2001 to October 2005. Ms. O’Brien serves as a director for the Association of Women Attorneys Foundation.

Sue B. Ortenstone has served as Senior Vice President and Chief Human Resources Officer of CenterPoint Energy since February 2014. Prior to joining CenterPoint Energy, Ms. Ortenstone was Senior Vice President and Chief Administrative Officer at Copano Energy from July 2012 to May 2013. Before joining Copano, she spent more than 30 years at El Paso Corporation and served most recently as Senior Vice President and then Executive Vice President and Chief Administrative Officer from November 2003 to May 2012. Ms. Ortenstone serves on the Advisory Board for Civil and Environmental Engineering, as well as the Industrial Advisory Board in the College of Engineering at the University of Wisconsin. She also serves on the Board of Trustees for Northwest Assistance Ministries of Houston.

Item 1A. Risk Factors

We are a holding company that conducts all of our business operations through subsidiaries, primarily CenterPoint Houston and CERC. We also own interests in Enable, a publicly traded midstream master limited partnership jointly controlled by CERC Corp. and OGE. The following, along with any additional legal proceedings identified or incorporated by reference in Item 3 of this report, summarizes the principal risk factors associated with the businesses conducted by our subsidiaries and our interests in Enable:

Risk Factors Associated with Our Consolidated Financial Condition

As a holding company with no operations of our own, we will depend on distributions from our subsidiaries and from Enable to meet our payment obligations, and provisions of applicable law or contractual restrictions could limit the amount of those distributions.

We derive all of our operating income from, and hold all of our assets through, our subsidiaries, including our interests in Enable. As a result, we depend on distributions from our subsidiaries, including Enable, in order to meet our payment obligations. In general, our subsidiaries are separate and distinct legal entities and have no obligation to provide us with funds for our payment obligations, whether by dividends, distributions, loans or otherwise. In addition, provisions of applicable law, such as those limiting the legal sources of dividends, limit our subsidiaries’ ability to make payments or other distributions to us, and our subsidiaries could agree to contractual restrictions on their ability to make distributions. For a discussion of risks that may impact the amount

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of cash distributions we receive with respect to our interests in Enable, please read “- Additional Risk Factors Affecting Our Interests in Enable Midstream Partners, LP - Our cash flows will be adversely impacted if we receive less cash distributions from Enable than we currently expect.”

Our right to receive any assets of any subsidiary, and therefore the right of our creditors to participate in those assets, will be effectively subordinated to the claims of that subsidiary’s creditors, including trade creditors. In addition, even if we were a creditor of any subsidiary, our rights as a creditor would be subordinated to any security interest in the assets of that subsidiary and any indebtedness of the subsidiary senior to that held by us.

If we are unable to arrange future financings on acceptable terms, our ability torefinance existing indebtedness could be limited.

As of December 31, 2014, we had $8.9 billion of outstanding indebtedness on a consolidated basis, which includes $3.0 billion of non-recourse transition and system restoration bonds. As of December 31, 2014, approximately $1.1 billion principal amount of this debt is required to be paid through 2017. This amount excludes principal repayments of approximately $1.2 billion on transition and system restoration bonds, for which dedicated revenue streams exist. Our future financing activities may be significantly affected by, among other things:

• general economic and capital market conditions;

• credit availability from financial institutions and other lenders;

• investor confidence in us and the markets in which we operate;

• maintenance of acceptable credit ratings;

• market expectations regarding our future earnings and cash flows;

• market perceptions of our ability to access capital markets on reasonable terms;

• our exposure to GenOn Energy, Inc. (GenOn) (formerly known as RRI Energy, Inc., Reliant Energy, Inc. and Reliant Resources, Inc. (RRI)), a wholly owned subsidiary of NRG, in connection with certain indemnification obligations;

• incremental collateral that may be required due to regulation of derivatives; and

• provisions of relevant tax and securities laws.

As of December 31, 2014, CenterPoint Houston had approximately $2.4 billion aggregate principal amount of general mortgage bonds outstanding under the General Mortgage, including (a) $290 million held in trust to secure pollution control bonds that are not reflected in our consolidated financial statements because we are both the obligor on the bonds and the current owner of the bonds, (b) approximately $56 million held in trust to secure pollution control bonds that are not reflected on our financial statements because CenterPoint Houston is both the obligor on the bonds and the current owner of the bonds, and (c) approximately $118 million held in trust to secure pollution control bonds for which we are obligated. Additionally, as of December 31, 2014, CenterPoint Houston had approximately $102 million aggregate principal amount of first mortgage bonds outstanding under the Mortgage. CenterPoint Houston may issue additional general mortgage bonds on the basis of retired bonds, 70% of property additions or cash deposited with the trustee. Approximately $3.9 billion of additional first mortgage bonds and general mortgage bonds in the aggregate could be issued on the basis of retired bonds and 70% of property additions as of December 31, 2014. However, CenterPoint Houston has contractually agreed that it will not issue additional first mortgage bonds, subject to certain exceptions.

Our current credit ratings are discussed in “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Liquidity and Capital Resources - Other Matters - Impact on Liquidity of a Downgrade in Credit Ratings” in Item 7 of Part II of this report. These credit ratings may not remain in effect for any given period of time and one or more of these ratings may be lowered or withdrawn entirely by a rating agency. We note that these credit ratings are not recommendations to buy, sell or hold our securities. Each rating should be evaluated independently of any other rating. Any future reduction or withdrawal of one or more of our credit ratings could have a material adverse impact on our ability to access capital on acceptable terms.

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Poor investment performance of the pension plan and factors adversely affecting the calculation of pension liabilities could unfavorably impact our liquidity and results of operations.

We maintain a qualified defined benefit pension plan covering all employees. Our costs of providing this plan are dependent upon a number of factors including the investment returns on plan assets, the level of interest rates used to calculate the funded status of the plan, our contributions to the plan and government regulations with respect to funding requirements and the calculation of plan liabilities. Funding requirements may increase as a result of a decline in the market value of plan assets, a decline in the interest rates used to calculate the present value of future plan obligations or government regulations that increase minimum funding requirements or the pension liability. In addition to affecting our funding requirements, each of these factors could adversely affect our results of operations and financial position.

The use of derivative contracts in the normal course of business by us, our subsidiaries or Enable could result in financial losses that could negatively impact our results of operations and those of our subsidiaries or Enable.

We and our subsidiaries use derivative instruments, such as swaps, options, futures and forwards, to manage our commodity, weather and financial market risks. Enable may also use such instruments from time to time to manage its commodity and financial market risk. We, our subsidiaries or Enable could recognize financial losses as a result of volatility in the market values of these contracts or should a counterparty fail to perform. In the absence of actively quoted market prices and pricing information from external sources, the valuation of these financial instruments can involve management’s judgment or use of estimates. As a result, changes in the underlying assumptions or use of alternative valuation methods could affect the reported fair value of these contracts.

An impairment of goodwill, long-lived assets, including intangible assets, and equity-method investments could reduce our earnings.

Goodwill is recorded when the purchase price of a business exceeds the fair market value of the tangible and separately measurable intangible net assets. Accounting principles generally accepted in the United States of America require us to test goodwill for impairment on an annual basis or when events or circumstances occur indicating that goodwill might be impaired. Long-lived assets, including intangible assets with finite useful lives, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable.

For investments we account for under the equity method, the impairment test considers whether the fair value of the equity investment as a whole, not the underlying net assets, has declined and whether that decline is other than temporary. For example, if Enable’s unit price, distributions or earnings decline for reasons including, but not limited to, continued declines in commodity prices and producer activity, and that decline is deemed to be other than temporary, we could determine that we are unable to recover the carrying value of our equity investment in Enable. The carrying value of CenterPoint Energy’s investment in Enable is $19.33 per unit. As of December 31, 2014, Enable’s common unit price closed at $19.39 (approximately $14 million above carrying value). The lowest close price for Enable’s common units in January 2015 was $17.34 (approximately $465 million below carrying value). If we determine that an impairment is indicated, we would be required to take an immediate noncash charge to earnings with a correlative effect on equity and balance sheet leverage as measured by debt to total capitalization.

Risk Factors Affecting Our Electric Transmission & Distribution Business

Rate regulation of CenterPoint Houston’s business may delay or deny CenterPoint Houston’s ability to earn a reasonable return and fully recover its costs.

CenterPoint Houston’s rates are regulated by certain municipalities and the Texas Utility Commission based on an analysis of its invested capital and its expenses in a test year. Thus, the rates that CenterPoint Houston is allowed to charge may not match its expenses at any given time. The regulatory process by which rates are determined may not always result in rates that will produce full recovery of CenterPoint Houston’s costs and enable CenterPoint Houston to earn a reasonable return on its invested capital.

CenterPoint Houston’s revenues and results of operations are seasonal.

A significant portion of CenterPoint Houston’s revenues is derived from rates that it collects from each REP based on the amount of electricity it delivers on behalf of such REP. Thus, CenterPoint Houston’s revenues and results of operations are subject to seasonality, weather conditions and other changes in electricity usage, with revenues generally being higher during the warmer months. Unusually mild weather in the warmer months could diminish our results of operations and harm our financial condition. Conversely, extreme warm weather conditions could increase our results of operations in a manner that would not likely be annually recurring.

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Disruptions at power generation facilities owned by third parties could interrupt CenterPoint Houston’s sales of transmission and distribution services.

CenterPoint Houston transmits and distributes to customers of REPs electric power that the REPs obtain from power generation facilities owned by third parties. CenterPoint Houston does not own or operate any power generation facilities. If power generation is disrupted or if power generation capacity is inadequate, CenterPoint Houston’s sales of transmission and distribution services may be diminished or interrupted, and its results of operations, financial condition and cash flows could be adversely affected.

A substantial portion of CenterPoint Houston’s receivables is concentrated in a small number of REPs, and any delay or default in payment could adversely affect CenterPoint Houston’s cash flows, financial condition and results of operations.

CenterPoint Houston’s receivables from the distribution of electricity are collected from REPs that supply the electricity CenterPoint Houston distributes to their customers. As of December 31, 2014, CenterPoint Houston did business with approximately 70 REPs. Adverse economic conditions, structural problems in the market served by ERCOT or financial difficulties of one or more REPs could impair the ability of these REPs to pay for CenterPoint Houston’s services or could cause them to delay such payments. CenterPoint Houston depends on these REPs to remit payments on a timely basis. Applicable regulatory provisions require that customers be shifted to another REP or a provider of last resort if a REP cannot make timely payments. Applicable Texas Utility Commission regulations significantly limit the extent to which CenterPoint Houston can apply normal commercial terms or otherwise seek credit protection from firms desiring to provide retail electric service in its service territory, and CenterPoint Houston thus remains at risk for payments related to services provided prior to the shift to another REP or the provider of last resort. The Texas Utility Commission revised its regulations in 2009 to (i) increase the financial qualifications required of REPs that began selling power after January 1, 2009, and (ii) authorize utilities to defer bad debts resulting from defaults by REPs for recovery in a future rate case. A significant portion of CenterPoint Houston’s billed receivables from REPs are from affiliates of NRG and Energy Future Holdings Corp. (Energy Future Holdings). CenterPoint Houston’s aggregate billed receivables balance from REPs as of December 31, 2014 was $195 million. Approximately 36% and 10% of this amount was owed by affiliates of NRG and Energy Future Holdings, respectively. In April 2014, Energy Future Holdings publicly disclosed that it and the substantial majority of its direct and indirect subsidiaries, excluding Oncor Electric Delivery Company LLC and its subsidiaries, filed voluntary petitions for relief under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the District of Delaware. Any delay or default in payment by REPs could adversely affect CenterPoint Houston’s cash flows, financial condition and results of operations. If a REP were unable to meet its obligations, it could consider, among various options, restructuring under the bankruptcy laws, in which event such REP might seek to avoid honoring its obligations, and claims might be made by creditors involving payments CenterPoint Houston had received from such REP.

CenterPoint Houston could be subject to higher costs and fines or other sanctions as a result of mandatory reliability standards.

The FERC has jurisdiction with respect to ensuring the reliability of electric transmission service, including transmission facilities owned by CenterPoint Houston and other utilities within ERCOT. The FERC has designated the NERC as the ERO to promulgate standards, under FERC oversight, for all owners, operators and users of the bulk power system. The FERC has approved the delegation by the NERC of authority for reliability in ERCOT to the TRE, a functionally independent division of ERCOT. Compliance with the mandatory reliability standards may subject CenterPoint Houston to higher operating costs and may result in increased capital expenditures. In addition, if CenterPoint Houston were to be found to be in noncompliance with applicable mandatory reliability standards, it could be subject to sanctions, including substantial monetary penalties.

The AMS deployed throughout CenterPoint Houston’s service territory may experience unexpected problems with respect to the timely receipt of accurate metering data.

CenterPoint Houston has deployed an AMS throughout its service territory. The deployment consisted, among other elements, of replacing existing meters with new electronic meters that record metering data at 15-minute intervals and wirelessly communicate that information to CenterPoint Houston over a bi-directional communications system installed for that purpose. The AMS integrates equipment and computer software from various vendors in order to eliminate the need for physical meter readings to be taken at consumers’ premises, such as monthly readings for billing purposes and special readings associated with a customer’s change in REPs or the connection or disconnection of electric service. Unanticipated difficulties could be encountered during the operation of the AMS, including failures or inadequacy of equipment or software, difficulties in integrating the various components of the AMS, changes in technology, cyber-security issues and factors outside the control of CenterPoint Houston, which could result in delayed or inaccurate metering data that might lead to delays or inaccuracies in the calculation and imposition of delivery or other charges, which could have a material adverse effect on CenterPoint Houston’s results of operations, financial condition and cash flows.

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Risk Factors Affecting Our Natural Gas Distribution and Energy Services Businesses

Rate regulation of CERC’s business may delay or deny CERC’s ability to earn a reasonable return and fully recover its costs.

CERC’s rates for NGD are regulated by certain municipalities and state commissions based on an analysis of its invested capital and its expenses in a test year. Thus, the rates that CERC is allowed to charge may not match its expenses at any given time. The regulatory process in which rates are determined may not always result in rates that will produce full recovery of CERC’s costs and enable CERC to earn a reasonable return on its invested capital.

CERC’s natural gas distribution and energy services businesses are subject to fluctuations in notional natural gas prices as well as geographic and seasonal natural gas price differentials, which could affect the ability of CERC’s suppliers and customers to meet their obligations or otherwise adversely affect CERC’s liquidity and results of operations and financial condition.

CERC is subject to risk associated with changes in the notional price of natural gas as well as geographic and seasonal natural gas price differentials. Increases in natural gas prices might affect CERC’s ability to collect balances due from its customers and, for NGD, could create the potential for uncollectible accounts expense to exceed the recoverable levels built into CERC’s tariff rates. In addition, a sustained period of high natural gas prices could (i) decrease demand for natural gas in the areas in which CERC operates, thereby resulting in decreased sales and revenues and (ii) increase the risk that CERC’s suppliers or customers fail or are unable to meet their obligations. An increase in natural gas prices would also increase CERC’s working capital requirements by increasing the investment that must be made in order to maintain natural gas inventory levels. Additionally, a decrease in natural gas prices could increase the amount of collateral that CERC must provide under its hedging arrangements.

CERC’s businesses must compete with alternate energy sources, which could result in CERC marketing less natural gas, which could have an adverse impact on CERC’s results of operations, financial condition and cash flows.

CERC competes primarily with alternate energy sources such as electricity and other fuel sources. In some areas, intrastate pipelines, other natural gas distributors and marketers also compete directly with CERC for natural gas sales to end-users. In addition, as a result of federal regulatory changes affecting interstate pipelines, natural gas marketers operating on these pipelines may be able to bypass CERC’s facilities and market, sell and/or transport natural gas directly to commercial and industrial customers. Any reduction in the amount of natural gas marketed, sold or transported by CERC as a result of competition may have an adverse impact on CERC’s results of operations, financial condition and cash flows.

A decline in CERC’s credit rating could result in CERC’s having to provide collateral under its shipping or hedging arrangements or in order to purchase natural gas.

If CERC’s credit rating were to decline, it might be required to post cash collateral under its shipping or hedging arrangements or in order to purchase natural gas. If a credit rating downgrade and the resultant cash collateral requirement were to occur at a time when CERC was experiencing significant working capital requirements or otherwise lacked liquidity, CERC’s results of operations, financial condition and cash flows could be adversely affected.

CERC’s revenues and results of operations are seasonal.

A substantial portion of CERC’s revenues is derived from natural gas sales. Thus, CERC’s revenues and results of operations are subject to seasonality, weather conditions and other changes in natural gas usage, with revenues being higher during the winter months. Unusually mild weather in the winter months could diminish our results of operations and harm our financial condition. Conversely, extreme cold weather conditions could increase our results of operations in a manner that would not likely be annually recurring.

The states in which CERC provides regulated local gas distribution may, either through legislation or rules, adopt restrictions regarding organization, financing and affiliate transactions that could have significant adverse impacts on CERC’s ability to operate.

Proposals have been put forth in some of the states in which CERC does business to give state regulatory authorities increased jurisdiction and scrutiny over organization, capital structure, intracompany relationships and lines of business that could be pursued by registered holding companies and their affiliates that operate in those states. Some of these frameworks attempt to regulate financing activities, acquisitions and divestitures, and arrangements between the utilities and their affiliates, and to restrict the level of non-utility business that can be conducted within the holding company structure. Additionally, they may impose record-

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keeping, record access, employee training and reporting requirements related to affiliate transactions and reporting in the event of certain downgrading of the utility’s credit rating.

These regulatory frameworks could have adverse effects on CERC’s ability to conduct its utility operations, to finance its business and to provide cost-effective utility service. In addition, if more than one state adopts restrictions on similar activities, it may be difficult for CERC and us to comply with competing regulatory requirements.

Risk Factors Affecting Our Interests in Enable Midstream Partners, LP

We hold a substantial limited partnership interest in Enable (55.4% of Enable’s outstanding limited partnership interests as of December 31, 2014), as well as 50% of the management rights in Enable’s general partner and a 40% interest in the incentive distribution rights held by Enable’s general partner. Accordingly, our future earnings, results of operations, cash flows and financial condition will be affected by the performance of Enable, the amount of cash distributions we receive from Enable and the value of our interests in Enable. Factors that may have a material impact on Enable’s performance and cash distributions, and, hence, the value of our interests in Enable, include the risk factors outlined below, as well as the risks described elsewhere under “Risk Factors” that are applicable to Enable.

Our cash flows will be adversely impacted if we receive less cash distributions from Enable than we currently expect.

Both CERC Corp. and OGE hold their limited partnership interests in Enable in the form of both common units and subordinated units. Enable is expected to pay a minimum quarterly distribution of $0.2875 per unit, or $1.15 per unit on an annualized basis, on its outstanding units to the extent it has sufficient cash from operations after establishment of cash reserves and payment of fees and expenses, including payments to its general partner and its affiliates (referred to as “available cash”). The principal difference between Enable’s common units and subordinated units is that in any quarter during the applicable subordination period, holders of the subordinated units are not entitled to receive any distribution of available cash until the common units have received the minimum quarterly distribution plus any arrearages in the payment of the minimum quarterly distribution on common units from prior quarters. If Enable does not pay distributions on its subordinated units, its subordinated units will not accrue arrearages for those unpaid distributions. Accordingly, if Enable is unable to pay its minimum quarterly distribution, the amount of cash distributions we receive from Enable may be adversely affected. Enable may not have sufficient available cash each quarter to enable it to pay the minimum quarterly distribution. The amount of cash Enable can distribute on its units will principally depend upon the amount of cash it generates from its operations, which will fluctuate from quarter to quarter based on, among other things:

• the fees and gross margins it realizes with respect to the volume of natural gas and crude oil that it handles;

• the prices of, levels of production of, and demand for natural gas and crude oil;

• the volume of natural gas and crude oil it gathers, compresses, treats, dehydrates, processes, fractionates, transports and stores;

• the relationship among prices for natural gas, NGLs and crude oil;

• cash calls and settlements of hedging positions;

• margin requirements on open price risk management assets and liabilities;

• the level of competition from other midstream energy companies;

• adverse effects of governmental and environmental regulation;

• the level of its operation and maintenance expenses and general and administrative costs; and

• prevailing economic conditions.

In addition, the actual amount of cash Enable will have available for distribution will depend on other factors, including:

• the level and timing of its capital expenditures;

• the cost of acquisitions;

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• its debt service requirements and other liabilities;

• fluctuations in its working capital needs;

• its ability to borrow funds and access capital markets;

• restrictions contained in its debt agreements;

• the amount of cash reserves established by its general partner; and

• other business risks affecting its cash levels.

The amount of cash Enable has available for distribution to us depends primarily on its cash flow rather than on its profitability, which may prevent Enable from making distributions, even during periods in which Enable records net income.

The amount of cash Enable has available for distribution depends primarily upon its cash flows and not solely on profitability, which will be affected by non-cash items. As a result, Enable may make cash distributions during periods when it records losses for financial accounting purposes and may not make cash distributions during periods when it records net earnings for financial accounting purposes.

We are not able to exercise control over Enable, which entails certain risks.

Enable is controlled jointly by CERC Corp. and OGE, who each own 50% of the management rights in the general partner of Enable. The board of directors of Enable’s general partner is composed of an equal number of directors appointed by OGE and by us, the president and chief executive officer of Enable’s general partner and three directors who are independent as defined under the independence standards established by the New York Stock Exchange. Accordingly, we are not able to exercise control over Enable.

Although we jointly control Enable with OGE, we may have conflicts of interest with Enable that could subject us to claims that we have breached our fiduciary duty to Enable and its unitholders.

CERC Corp. and OGE each own 50% of the management rights in Enable’s general partner, as well as limited partnership interests in Enable, and interests in the incentive distribution rights held by Enable’s general partner. Conflicts of interest may arise between us and Enable and its unitholders. Our joint control of the general partner of Enable may increase the possibility of claims of breach of fiduciary duties including claims of conflicts of interest related to Enable. In resolving these conflicts, we may favor our own interests and the interests of our affiliates over the interests of Enable and its unitholders as long as the resolution does not conflict with Enable’s partnership agreement. These circumstances could subject us to claims that, in favoring our own interests and those of our affiliates, we breached a fiduciary duty to Enable or its unitholders.

Enable’s contracts are subject to renewal risks.

Enable generates a substantial portion of its gross margins under long-term, fee-based agreements. For the year ended December 31, 2014, approximately 72% of Enable’s gross margin was generated from contracts that are fee-based and approximately 50% of its gross margin was attributable to fees associated with firm contracts or contracts with minimum volume commitment features. As these and other contracts expire, Enable may have to negotiate extensions or renewals with existing suppliers and customers or enter into new contracts with other suppliers and customers. Enable may be unable to obtain new contracts on favorable commercial terms, if at all. It also may be unable to maintain the economic structure of a particular contract with an existing customer or the overall mix of its contract portfolio. For example, depending on prevailing market conditions at the time of a contract renewal, gathering and processing customers with fixed-fee or fixed-margin contracts may desire to enter into contracts under different fee arrangements. To the extent Enable is unable to renew its existing contracts on terms that are favorable to it, if at all, or successfully manage its overall contract mix over time, its revenue, results of operations and distributable cash flow could be adversely affected.

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Enable depends on a small number of customers for a significant portion of its firm transportation and storage services revenues. The loss of, or reduction in volumes from, these customers could result in a decline in sales of its transportation and storage services and its consolidated financial position, results of operations and its ability to make cash distributions.

Enable provides firm transportation and storage services to certain key customers on its system. Its major transportation customers are affiliates of CenterPoint Energy, Laclede Group (Laclede), OGE, American Electric Power Company, Inc. (AEP) and XTO Energy Inc., an affiliate of Exxon Mobil Corporation.

The loss of all or even a portion of the interstate or intrastate transportation and storage services for any of these customers, the failure to extend or replace these contracts or the extension or replacement of these contracts on less favorable terms, as a result of competition or otherwise, could adversely affect Enable’s combined and consolidated financial position, results of operations and its ability to make cash distributions.

Enable’s businesses are dependent, in part, on the drilling and production decisions of others.

Enable’s businesses are dependent on the continued availability of natural gas and crude oil production. Enable has no control over the level of drilling activity in its areas of operation, the amount of reserves associated with wells connected to its systems or the rate at which production from a well declines. In addition, Enable’s cash flows associated with wells currently connected to its systems will decline over time. To maintain or increase throughput levels on its gathering and transportation systems and the asset utilization rates at its natural gas processing plants, Enable’s customers must continually obtain new natural gas and crude oil supplies. The primary factors affecting Enable’s ability to obtain new supplies of natural gas and crude oil and attract new customers to its assets are the level of successful drilling activity near these systems, its ability to compete for volumes from successful new wells and its ability to expand capacity as needed. If Enable is not able to obtain new supplies of natural gas and crude oil to replace the natural decline in volumes from existing wells, throughput on its gathering, processing, transportation and storage facilities will decline, which could have a material adverse effect on its results of operations and distributable cash flow. Enable has no control over producers or their drilling and production decisions, which are affected by, among other things:

• the availability and cost of capital;

• prevailing and projected commodity prices, including the prices of natural gas, NGLs and crude oil;

• demand for natural gas, NGLs and crude oil;

• levels of reserves;

• geological considerations;

• environmental or other governmental regulations, including the availability of drilling permits and the regulation of hydraulic fracturing; and

• the availability of drilling rigs and other costs of production and equipment.

Fluctuations in energy prices can also greatly affect the development of new natural gas and crude oil reserves. Drilling and production activity generally decreases as commodity prices decrease. In general terms, the prices of natural gas, crude oil and other hydrocarbon products fluctuate in response to changes in supply and demand, market uncertainty and a variety of additional factors that are beyond Enable’s control. Because of these factors, even if new natural gas or crude oil reserves are known to exist in areas served by Enable’s assets, producers may choose not to develop those reserves. Declines in natural gas or crude oil prices can have a negative impact on exploration, development and production activity and, if sustained, could lead to decreases in such activity. A sustained decline could also lead producers to shut in production from their existing wells. Sustained reductions in exploration or production activity in Enable’s areas of operation could lead to further reductions in the utilization of its systems, which could have a material adverse effect on its business, financial condition, results of operations and ability to make cash distributions.

In addition, it may be more difficult to maintain or increase the current volumes on Enable’s gathering systems, as several of the formations in the unconventional resource plays in which it operates generally have higher initial production rates and steeper production decline curves than wells in more conventional basins. Should Enable determine that the economics of its gathering assets do not justify the capital expenditures needed to grow or maintain volumes associated therewith, Enable may reduce such capital expenditures, which could cause revenues associated with these assets to decline over time. In addition to capital expenditures

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to support growth, the steeper production decline curves associated with unconventional resource plays may require Enable to incur higher maintenance capital expenditures relative to throughput over time, which will reduce its distributable cash flow.

Because of these and other factors, even if new reserves are known to exist in areas served by Enable’s assets, producers may choose not to develop those reserves. Reductions in drilling activity would result in Enable’s inability to maintain the current levels of throughput on its systems and could have a material adverse effect on its results of operations and distributable cash flow.

Enable’s industry is highly competitive, and increased competitive pressure could adversely affect its results of operations and distributable cash flow.

Enable competes with similar enterprises in its respective areas of operation. The principal elements of competition are rates, terms of service and flexibility and reliability of service. Enable’s competitors include large crude oil, natural gas and petrochemical companies that have greater financial resources and access to supplies of natural gas, NGLs and crude oil than Enable. Some of these competitors may expand or construct gathering, processing, transportation and storage systems that would create additional competition for the services Enable provides to its customers. Excess pipeline capacity in the regions served by Enable’s interstate pipelines could also increase competition and adversely impact Enable’s ability to renew or enter into new contracts with respect to its available capacity when existing contracts expire. In addition, Enable’s customers that are significant producers of natural gas may develop their own gathering, processing, transportation and storage systems in lieu of using Enable’s systems. Enable’s ability to renew or replace existing contracts with its customers at rates sufficient to maintain current revenues and cash flows could be adversely affected by the activities of its competitors and customers. Further, natural gas utilized as a fuel competes with other forms of energy available to end-users, including electricity, coal and liquid fuels. Increased demand for such forms of energy at the expense of natural gas could lead to a reduction in demand for natural gas gathering, processing, transportation and transportation services. All of these competitive pressures could adversely affect Enable’s results of operations and distributable cash flow.

Enable may not be able to recover the costs of its substantial planned investment in capital improvements and additions, and the actual cost of such improvements and additions may be significantly higher than it anticipates.

Enable’s business plan calls for extensive investment in capital improvements and additions. In Enable’s Form 10-K for the year ended December 31, 2014, Enable stated that it expects that its expansion capital expenditures could range from approximately $600 million to $800 million for the year ending December 31, 2015, not including opportunities currently under evaluation which could add up to an additional $300 million of expansion capital expenditures. For example, Enable is currently constructing two cryogenic processing facilities that it plans to connect to its super-header system in Grady County, Oklahoma, which Enable expects will add 400 MMcf/d of natural gas processing capacity. Enable expects that the first of the two new plants (the Bradley Plant) will be completed in the first quarter of 2015. Enable expects that the second plant (the Grady County Plant), a 200 MMcf/d plant, will be completed in the first quarter of 2016. Enable also plans to construct significant natural gas gathering and compression infrastructure to support producer activity in its growth areas, and Enable anticipates that in 2015 it will complete the construction of two crude gathering systems in North Dakota’s Bakken Shale formation with a combined capacity of 49,500 Bbl/d.

The construction of additions or modifications to Enable’s existing systems, and the construction of new midstream assets, involves numerous regulatory, environmental, political and legal uncertainties, many of which are beyond Enable’s control and may require the expenditure of significant amounts of capital, which may exceed its estimates. These projects may not be completed at the planned cost, on schedule or at all. The construction of new pipeline, gathering, treating, processing, compression or other facilities is subject to construction cost overruns due to labor costs, costs of equipment and materials such as steel, labor shortages or weather or other delays, inflation or other factors, which could be material. In addition, the construction of these facilities is typically subject to the receipt of approvals and permits from various regulatory agencies. Those agencies may not approve the projects in a timely manner, if at all, or may impose restrictions or conditions on the projects that could potentially prevent a project from proceeding, lengthen its expected completion schedule and/or increase its anticipated cost. Moreover, Enable’s revenues and cash flows may not increase immediately upon the expenditure of funds on a particular project. For instance, if Enable expands an existing pipeline or constructs a new pipeline, the construction may occur over an extended period of time, and Enable may not receive any material increases in revenues or cash flows until the project is completed. In addition, Enable may construct facilities to capture anticipated future growth in production in a region in which such growth does not materialize. As a result, the new facilities may not be able to achieve Enable’s expected investment return, which could adversely affect its results of operations and its ability to make cash distributions.

In connection with Enable’s capital investments, Enable may engage a third party to estimate potential reserves in areas to be developed prior to constructing facilities in those areas. To the extent Enable relies on estimates of future production in deciding to construct additions to its systems, those estimates may prove to be inaccurate due to numerous uncertainties inherent in estimating future production. As a result, new facilities may not be able to attract sufficient throughput to achieve expected investment return,

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which could adversely affect Enable’s results of operations and its ability to make cash distributions. In addition, the construction of additions to existing gathering and transportation assets may require new rights-of-way prior to construction. Those rights-of-way to connect new natural gas supplies to existing gathering lines may be unavailable and Enable may not be able to capitalize on attractive expansion opportunities. Additionally, it may become more expensive to obtain new rights-of-way or to renew existing rights-of-way. If the cost of renewing or obtaining new rights-of-way increases, Enable’s results of operations and its ability to make cash distributions could be adversely affected.

Natural gas, NGL and crude oil prices are volatile, and changes in these prices could adversely affect Enable’s results of operations and its ability to make cash distributions.

Enable’s results of operations and its ability to make cash distributions could be negatively affected by adverse movements in the prices of natural gas, NGLs and crude oil depending on factors that are beyond its control. These factors include demand for these commodities, which fluctuates with changes in market and economic conditions and other factors, including the impact of seasonality and weather, general economic conditions, the level of domestic and offshore natural gas production and consumption, the availability of imported natural gas, LNG, NGLs and crude oil, actions taken by foreign natural gas and oil producing nations, the availability of local, intrastate and interstate transportation systems, the availability and marketing of competitive fuels, the impact of energy conservation efforts, technological advances affecting energy consumption and the extent of governmental regulation and taxation.

Enable’s keep-whole natural gas processing arrangements, which accounted for 7% of its natural gas processed volumes in 2014, expose it to fluctuations in the pricing spreads between NGL prices and natural gas prices. Under these arrangements, the processor processes raw natural gas to extract NGLs and pays to the producer the natural gas equivalent Btu value of raw natural gas received from the producer in the form of either processed natural gas or its cash equivalent. The processor is generally entitled to retain the processed NGLs and to sell them for its own account. Accordingly, the processor’s margin is a function of the difference between the value of the NGLs produced and the cost of the processed natural gas used to replace the natural gas equivalent Btu value of those NGLs. Therefore, if natural gas prices increase and NGL prices do not increase by a corresponding amount, the processor has to replace the Btu of natural gas at higher prices and processing margins are negatively affected.

Enable’s percent-of-proceeds and percent-of-liquids natural gas processing agreements accounted for 44% of its natural gas processed volumes in 2014. Under these arrangements, the processor generally gathers raw natural gas from producers at the wellhead, transports the natural gas through its gathering system, processes the natural gas and sells the processed natural gas and/or NGLs at prices based on published index prices. The price paid to producers is based on an agreed percentage of the actual proceeds of the sale of processed natural gas, NGLs or both, or the expected proceeds based on an index price. Enable refers to contracts in which the processor shares in specified percentages of the proceeds from the sale of natural gas and NGLs as “percent-of-proceeds” arrangements, and contracts in which the processor receives proceeds from the sale of a percentage of the NGLs or the NGLs themselves as compensation for processing services as “percent-of-liquids” arrangements. These arrangements expose Enable to risks associated with the price of natural gas and NGLs.

At any given time, Enable’s overall portfolio of processing contracts may reflect a net short position in natural gas (meaning that it is a net buyer of natural gas) and a net long position in NGLs (meaning that it is a net seller of NGLs). As a result, Enable’s gross margin could be adversely impacted to the extent the price of NGLs decreases in relation to the price of natural gas.

Enable has limited experience in the crude oil gathering business.

In November 2013, Enable commenced operations on its initial crude oil gathering pipeline system, located in Dunn and McKenzie Counties in North Dakota within the Bakken Shale formation. Additionally in February 2014, Enable executed a crude oil gathering agreement to gather crude oil production through a new system in Williams and Mountrail Counties in North Dakota that is expected to commence operations in the first quarter of 2015. These facilities, with a combined capacity of 49,500 barrels per day, are the first crude oil gathering systems that Enable has built and operated. Other operators of gathering systems in the Bakken Shale formation may have more experience in the construction, operation and maintenance of crude oil gathering systems than Enable. This relative lack of experience may hinder Enable’s ability to fully implement its business plan in a timely and cost efficient manner, which, in turn, may adversely affect its results of operations and its ability to make cash distributions to unitholders.

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Enable provides certain transportation and storage services under long-term, fixed-price “negotiated rate” contracts that are not subject to adjustment, even if its cost to perform such services exceeds the revenues received from such contracts, and, as a result, Enable’s costs could exceed its revenues received under such contracts.

Enable has been authorized by the FERC to provide transportation and storage services at its facilities at negotiated rates. Generally, negotiated rates are in excess of the maximum recourse rates allowed by the FERC, but it is possible that costs to perform services under “negotiated rate” contracts will exceed the revenues obtained under these agreements. If this occurs, it could decrease the cash flow realized by Enable’s systems and, therefore, decrease the cash it has available for distribution.

As of December 31, 2014, approximately 56% of Enable’s contracted transportation firm capacity and 44% of its contracted storage firm capacity was subscribed under such “negotiated rate” contracts. These contracts generally do not include provisions allowing for adjustment for increased costs due to inflation, pipeline safety activities or other factors that are not tied to an applicable tracking mechanism authorized by the FERC. Successful recovery of any shortfall of revenue, representing the difference between “recourse rates” (if higher) and negotiated rates, is not assured under current FERC policies.

If third-party pipelines and other facilities interconnected to Enable’s gathering, processing or transportation facilities become partially or fully unavailable for any reason, Enable’s results of operations and its ability to make cash distributions could be adversely affected.

Enable depends upon third-party natural gas pipelines to deliver natural gas to, and take natural gas from, its transportation systems. Enable also depends on third-party facilities to transport and fractionate NGLs that are delivered to the third party at the tailgates of the processing plants. Fractionation is the separation of the heterogeneous mixture of extracted NGLs into individual components for end-use sale. For example, an outage or disruption on certain pipelines or fractionators operated by a third party could result in the shutdown of certain of Enable’s processing plants, and a prolonged outage or disruption could ultimately result in a reduction in the volume of NGLs Enable is able to produce. Additionally, Enable depends on third parties to provide electricity for compression at many of its facilities. Since Enable does not own or operate any of these third-party pipelines or other facilities, their continuing operation is not within its control. If any of these third-party pipelines or other facilities become partially or fully unavailable for any reason, Enable’s results of operations and its ability to make cash distributions to unitholders could be adversely affected.

Enable does not own all of the land on which its pipelines and facilities are located, which could disrupt its operations.

Enable does not own all of the land on which its pipelines and facilities have been constructed, and it is therefore subject to the possibility of more onerous terms and/or increased costs to retain necessary land use if it does not have valid rights-of-way or if such rights-of-way lapse or terminate. Enable may obtain the rights to construct and operate its pipelines on land owned by third parties and governmental agencies for a specific period of time. A loss of these rights, through Enable’s inability to renew right-of-way contracts or otherwise, could cause it to cease operations temporarily or permanently on the affected land, increase costs related to the construction and continuing operations elsewhere and adversely affect its results of operations and ability to make cash distributions.

Enable conducts a portion of its operations through joint ventures, which subject it to additional risks that could have a material adverse effect on the success of these operations and Enable’s financial position and results of operations.

Enable conducts a portion of its operations through joint ventures with third parties, including affiliates of Spectra Energy Corp, DCP Midstream Partners, LP, Trans Louisiana Gas Pipeline, Inc. and Pablo Gathering LLC. Enable may also enter into other joint venture arrangements in the future. These third parties may have obligations that are important to the success of the joint venture, such as the obligation to pay their share of capital and other costs of the joint venture. The performance of these third-party obligations, including the ability of the third parties to satisfy their obligations under these arrangements, is outside Enable’s control. If these parties do not satisfy their obligations under these arrangements, Enable’s business may be adversely affected.

Enable’s joint venture arrangements may involve risks not otherwise present when operating assets directly, including, for example:

• Enable’s joint venture partners may share certain approval rights over major decisions;

• Enable’s joint venture partners may not pay their share of the joint venture’s obligations, leaving Enable liable for their shares of joint venture liabilities;

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• Enable may be unable to control the amount of cash we will receive from the joint venture;

• Enable may incur liabilities as a result of an action taken by its joint venture partners;

• Enable may be required to devote significant management time to the requirements of and matters relating to the joint ventures;

• Enable’s insurance policies may not fully cover loss or damage incurred by both Enable and its joint venture partners in certain circumstances;

• Enable’s joint venture partners may be in a position to take actions contrary to its instructions or requests or contrary to its policies or objectives; and

• disputes between Enable and its joint venture partners may result in delays, litigation or operational impasses.

The risks described above or the failure to continue Enable’s joint ventures or to resolve disagreements with its joint venture partners could adversely affect its ability to transact the business that is the subject of such joint venture, which would in turn negatively affect Enable’s financial condition and results of operations. The agreements under which Enable formed certain joint ventures may subject it to various risks, limit the actions it may take with respect to the assets subject to the joint venture and require Enable to grant rights to its joint venture partners that could limit its ability to benefit fully from future positive developments. Some joint ventures require Enable to make significant capital expenditures. If Enable does not timely meet its financial commitments or otherwise does not comply with its joint venture agreements, its rights to participate, exercise operator rights or otherwise influence or benefit from the joint venture may be adversely affected. Certain of Enable’s joint venture partners may have substantially greater financial resources than Enable has and Enable may not be able to secure the funding necessary to participate in operations its joint venture partners propose, thereby reducing its ability to benefit from the joint venture.

Enable’s ability to grow is dependent on its ability to access external financing sources.

Enable expects that it will distribute all of its “available cash” to its unitholders. As a result, Enable is expected to rely primarily upon external financing sources, including commercial bank borrowings and the issuance of debt and equity securities, to fund acquisitions and expansion capital expenditures. As a result, to the extent Enable is unable to finance growth externally, Enable’s cash distribution policy will significantly impair its ability to grow. In addition, because Enable is expected to distribute all of its available cash, its growth may not be as fast as businesses that reinvest their available cash to expand ongoing operations.

To the extent Enable issues additional units in connection with any acquisitions or expansion capital expenditures, the payment of distributions on those additional units may increase the risk that Enable will be unable to maintain or increase its per unit distribution level, which in turn may impact the available cash that it has to distribute on each unit. There are no limitations in Enable’s partnership agreement on its ability to issue additional units, including units ranking senior to the common units. The incurrence of additional commercial borrowings or other debt by Enable to finance its growth strategy would result in increased interest expense, which in turn may negatively impact the available cash that Enable has to distribute to its unitholders.

If Enable does not make acquisitions or is unable to make acquisitions on economically acceptable terms, its future growth will be adversely affected.

Enable’s growth strategy includes, in part, the ability to make acquisitions that result in an increase in its cash generated from operations. If Enable is unable to make these accretive acquisitions either because: (i) it is unable to identify attractive acquisition targets or it is unable to negotiate purchase contracts on acceptable terms, (ii) it is unable to obtain acquisition financing on economically acceptable terms, or (iii) it is outbid by competitors, then our future growth and ability to increase distributions will be adversely affected.

Enable’s debt levels may limit its flexibility in obtaining additional financing and in pursuing other business opportunities.

As of December 31, 2014, Enable had approximately $1.9 billion of long-term debt outstanding, excluding the premiums on their senior notes. Enable has $363 million of long-term notes payable-affiliated companies due to CERC Corp. Enable has a $1.4 billion revolving credit facility for working capital, capital expenditures and other partnership purposes, including acquisitions, of which $1.1 billion was available as of December 31, 2014. As of January 31, 2015, Enable had the ability to issue up to $1.2 billion in commercial paper, subject to available borrowing capacity under its revolving credit facility and market conditions, to manage the timing of cash flows and fund short-term working capital deficits. As of January 31, 2015, $224 million was outstanding

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under Enable’s commercial paper program. Enable will continue to have the ability to incur additional debt, subject to limitations in its credit facilities. The levels of Enable’s debt could have important consequences, including the following:

• the ability to obtain additional financing, if necessary, for working capital, capital expenditures, acquisitions or other purposes may be impaired or the financing may not be available on favorable terms, if at all;

• a portion of cash flows will be required to make interest payments on the debt, reducing the funds that would otherwise be available for operations, future business opportunities and distributions;

• Enable’s debt level will make it more vulnerable to competitive pressures or a downturn in its business or the economy generally; and

• Enable’s debt level may limit its flexibility in responding to changing business and economic conditions.

Enable’s ability to service its debt will depend upon, among other things, its future financial and operating performance, which will be affected by prevailing economic conditions and financial, business, regulatory and other factors, some of which are beyond Enable’s control. If operating results are not sufficient to service current or future indebtedness, Enable may be forced to take actions such as reducing distributions, reducing or delaying business activities, acquisitions, investments or capital expenditures, selling assets, restructuring or refinancing debt, or seeking additional equity capital. These actions may not be effected on satisfactory terms, or at all.

Enable’s credit facilities contain operating and financial restrictions, including covenants and restrictions that may be affected by events beyond Enable’s control, which could adversely affect its business, financial condition, results of operations and ability to make quarterly distributions.

Enable’s credit facilities contain customary covenants that, among other things, limit its ability to:

• permit its subsidiaries to incur or guarantee additional debt;

• incur or permit to exist certain liens on assets;

• dispose of assets;

• merge or consolidate with another company or engage in a change of control;

• enter into transactions with affiliates on non-arm’s length terms; and

• change the nature of its business.

Enable’s credit facilities also require it to maintain certain financial ratios. Enable’s ability to meet those financial ratios can be affected by events beyond its control, and we cannot assure you that it will meet those ratios. In addition, Enable’s credit facilities contain events of default customary for agreements of this nature.

Enable’s ability to comply with the covenants and restrictions contained in its credit facilities may be affected by events beyond its control, including prevailing economic, financial and industry conditions. If market or other economic conditions deteriorate, Enable’s ability to comply with these covenants may be impaired. If Enable violates any of the restrictions, covenants, ratios or tests in its credit facilities, a significant portion of its indebtedness may become immediately due and payable. In addition, Enable’s lenders’ commitments to make further loans to it under the revolving credit facility may be suspended or terminated. Enable might not have, or be able to obtain, sufficient funds to make these accelerated payments.

Costs of compliance with existing environmental laws and regulations are significant, and the cost of compliance with future environmental laws and regulations may adversely affect Enable’s results of operations and its ability to make cash distributions.

Enable is subject to extensive federal, state and local environmental statutes, rules and regulations relating to air quality, water quality, waste management, wildlife conservation, natural resources and health and safety that could, among other things, delay or increase its costs of construction, restrict or limit the output of certain facilities and/or require additional pollution control equipment and otherwise increase costs. There are significant capital, operating and other costs associated with compliance with these environmental statutes, rules and regulations and those costs may be even more significant in the future.

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There is inherent risk of the incurrence of environmental costs and liabilities in Enable’s operations due to its handling of natural gas, NGLs and crude oil, air emissions related to its operations and historical industry operations and waste disposal practices. These activities are subject to stringent and complex federal, state and local laws and regulations governing environmental protection, including the discharge of materials into the environment and the protection of plants, wildlife, and natural and cultural resources. These laws and regulations can restrict or impact Enable’s business activities in many ways, such as restricting the way it can handle or dispose of wastes or requiring remedial action to mitigate pollution conditions that may be caused by its operations or that are attributable to former operators. Joint and several strict liability may be incurred, without regard to fault, under certain of these environmental laws and regulations in connection with discharges or releases of wastes on, under or from Enable’s properties and facilities, many of which have been used for midstream activities for a number of years, oftentimes by third parties not under its control. Private parties, including the owners of the properties through which Enable’s gathering systems pass and facilities where its wastes are taken for reclamation or disposal, may also have the right to pursue legal actions to enforce compliance, as well as to seek damages for non-compliance, with environmental laws and regulations or for personal injury or property damage. For example, an accidental release from one of Enable’s pipelines could subject it to substantial liabilities arising from environmental cleanup and restoration costs, claims made by neighboring landowners and other third parties for personal injury and property damage and fines or penalties for related violations of environmental laws or regulations. Enable may be unable to recover these costs from insurance. Moreover, the possibility exists that stricter laws, regulations or enforcement policies could significantly increase compliance costs and the cost of any remediation that may become necessary. Further, stricter requirements could negatively impact Enable’s customers’ production and operations, resulting in less demand for its services.

Increased regulation of hydraulic fracturing could result in reductions or delays in natural gas production by Enable’s customers, which could adversely affect its results of operations and ability to make cash distributions.

Hydraulic fracturing is an important and common practice that is used to stimulate production of natural gas and/or oil from dense subsurface rock formations. The hydraulic fracturing process involves the injection of water, sand, and chemicals under pressure into targeted subsurface formations to fracture the surrounding rock and stimulate production. Many of Enable’s customers commonly use hydraulic fracturing techniques in their drilling and completion programs. Hydraulic fracturing typically is regulated by state oil and natural gas commissions. In addition, certain federal agencies have proposed additional laws and regulations to more closely regulate the hydraulic fracturing process. For example, in January 2015, the EPA indicated its intention to propose more stringent rules regulating methane and VOC emissions from hydraulic fracturing and other well completion activity. Congress from time to time has considered the adoption of legislation to provide for federal regulation of hydraulic fracturing under the Safe Drinking Water Act (SDWA) and to require disclosure of the chemicals used in the hydraulic fracturing process. Some states have adopted, and other states are considering adopting, legal requirements that could impose more stringent permitting, public disclosure or well construction requirements on hydraulic fracturing activities. Local government also may seek to adopt ordinances within their jurisdictions regulating the time, place and manner of drilling activities in general or hydraulic fracturing activities in particular, in some cases banning hydraulic fracturing entirely. Other governmental agencies, including the U.S. Department of Energy and the EPA, have evaluated or are evaluating various other aspects of hydraulic fracturing such as the potential environmental effects of hydraulic fracturing on drinking water and groundwater.

If new or more stringent federal, state or local legal restrictions relating to the hydraulic fracturing process are adopted in areas where Enable’s oil and natural gas exploration and production customers operate, they could incur potentially significant added costs to comply with such requirements, experience delays or curtailment in the pursuit of exploration, development, or production activities, and perhaps even be precluded from drilling wells, some or all of which activities could adversely affect demand for Enable’s services to those customers.

Enable’s operations are subject to extensive regulation by federal, state and local regulatory authorities. Changes or additional regulatory measures adopted by such authorities could have a material adverse effect on Enable’s results of operations and ability to make cash distributions.

The rates charged by several of Enable’s pipeline systems, including for interstate gas transportation service provided by its intrastate pipelines, are regulated by the FERC. Enable’s pipeline operations that are not regulated by the FERC may be subject to state and local regulation applicable to intrastate natural and transportation services. The relevant states in which Enable operates include North Dakota, Oklahoma, Arkansas, Louisiana, Texas, Missouri, Kansas, Mississippi, Tennessee and Illinois.

The FERC and state regulatory agencies also regulate other terms and conditions of the services Enable may offer. If one of these regulatory agencies, on its own initiative or due to challenges by third parties, were to lower its tariff rates or deny any rate increase or other material changes to the types, or terms and conditions, of service Enable might propose or offer, the profitability of Enable’s pipeline businesses could suffer. If Enable were permitted to raise its tariff rates for a particular pipeline, there might be significant delay between the time the tariff rate increase is approved and the time that the rate increase actually goes into effect, which could also limit its profitability. Furthermore, competition from other pipeline systems may prevent Enable from raising

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its tariff rates even if regulatory agencies permit it to do so. The regulatory agencies that regulate Enable’s systems periodically implement new rules, regulations and terms and conditions of services subject to their jurisdiction. New initiatives or orders may adversely affect the rates charged for Enable’s services or otherwise adversely affect its financial condition, results of operations and cash flows and its ability to make cash distributions.

A change in the jurisdictional characterization of some of Enable’s assets by federal, state or local regulatory agencies or a change in policy by those agencies may result in increased regulation of its assets, which may cause its revenues to decline and operating expenses to increase.

Enable’s natural gas gathering and intrastate transportation operations are generally exempt from the jurisdiction of the FERC under the NGA, but FERC regulation may indirectly impact these businesses and the markets for products derived from these businesses. The FERC’s policies and practices across the range of its oil and natural gas regulatory activities, including, for example, its policies on interstate open access transportation, ratemaking, capacity release, and market center promotion may indirectly affect intrastate markets. In recent years, the FERC has pursued pro-competitive policies in its regulation of interstate oil and natural gas pipelines. However, we cannot assure you that the FERC will continue to pursue this approach as it considers matters such as pipeline rates and rules and policies that may indirectly affect the intrastate natural gas transportation business. Although the FERC has not made a formal determination with respect to all of Enable’s facilities it considers to be gathering facilities, Enable believes that its natural gas gathering pipelines meet the traditional tests that the FERC has used to determine that a pipeline is a gathering pipeline and are therefore not subject to FERC jurisdiction. The distinction between FERC-regulated transmission services and federally unregulated gathering services, however, has been the subject of substantial litigation, and the FERC determines whether facilities are gathering facilities on a case-by-case basis, so the classification and regulation of Enable’s gathering facilities is subject to change based on future determinations by the FERC, the courts or Congress. If the FERC were to consider the status of an individual facility and determine that the facility and/or services provided by it are not exempt from FERC regulation under the NGA and that the facility provides interstate service, the rates for, and terms and conditions of, services provided by such facility would be subject to regulation by the FERC under the NGA or the NGPA. Such regulation could decrease revenue, increase operating costs, and, depending upon the facility in question, could adversely affect Enable’s financial condition, results of operations and cash flows and its ability to make cash distributions. In addition, if any of Enable’s facilities were found to have provided services or otherwise operated in violation of the NGA or NGPA, this could result in the imposition of substantial civil penalties, as well as a requirement to disgorge revenues collected for such services in excess of the maximum rates established by the FERC.

Natural gas gathering may receive greater regulatory scrutiny at the state level; therefore, Enable’s natural gas gathering operations could be adversely affected should they become subject to the application of state regulation of rates and services. Enable’s gathering operations could also be subject to safety and operational regulations relating to the design, construction, testing, operation, replacement and maintenance of gathering facilities. We cannot predict what effect, if any, such changes might have on Enable’s operations, but Enable could be required to incur additional capital expenditures and increased costs depending on future legislative and regulatory changes.

Enable may incur significant costs and liabilities resulting from pipeline integrity and other similar programs and related repairs.

The DOT has adopted regulations requiring pipeline operators to develop integrity management programs for transportation pipelines located in “high consequence areas,” which are those areas where a leak or rupture could do the most harm. The regulations require operators, including Enable, to, among other things:

• develop a baseline plan to prioritize the assessment of a covered pipeline segment;

• identify and characterize applicable threats that could impact a high consequence area;

• improve data collection, integration, and analysis;

• repair and remediate pipelines as necessary; and

• implement preventive and mitigating action.

Although many of Enable’s pipelines fall within a class that is currently not subject to these requirements, it may incur significant cost and liabilities associated with repair, remediation, preventive or mitigation measures associated with its non-exempt pipelines. Should Enable fail to comply with DOT or comparable state regulations, it could be subject to penalties and

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fines. Also, the scope of the integrity management program and other related pipeline safety programs could be expanded in the future.

Other Risk Factors Affecting Our Businesses or Our Interests in Enable Midstream Partners, LP

We are subject to operational and financial risks and liabilities arising from environmental laws and regulations.

Our operations are subject to stringent and complex laws and regulations pertaining to the environment. As an owner or operator of natural gas pipelines and distribution systems, electric transmission and distribution systems, and the facilities that support these systems, we must comply with these laws and regulations at the federal, state and local levels. These laws and regulations can restrict or impact our business activities in many ways, such as:

• restricting the way we can handle or dispose of wastes;

• limiting or prohibiting construction activities in sensitive areas such as wetlands, coastal regions, or areas inhabited by endangered species;

• requiring remedial action to mitigate environmental conditions caused by our operations, or attributable to former operations;

• enjoining the operations of facilities with permits issued pursuant to such environmental laws and regulations; and

• impacting the demand for our services by directly or indirectly affecting the use or price of natural gas.

In order to comply with these requirements, we may need to spend substantial amounts and devote other resources from time to time to:

• construct or acquire new facilities and equipment;

• acquire permits for facility operations;

• modify or replace existing and proposed equipment; and

• clean or decommission waste disposal areas, fuel storage and management facilities and other locations and facilities.

Failure to comply with these laws and regulations may trigger a variety of administrative, civil and criminal enforcement measures, including the assessment of monetary penalties, the imposition of remedial actions, and the issuance of orders enjoining future operations. Certain environmental statutes impose strict, joint and several liability for costs required to clean and restore sites where hazardous substances have been stored, disposed or released. Moreover, it is not uncommon for neighboring landowners and other third parties to file claims for personal injury and property damage allegedly caused by the release of hazardous substances or other waste products into the environment.

The recent trend in environmental regulation has been to place more restrictions and limitations on activities that may affect the environment, and thus there can be no assurance as to the amount or timing of future expenditures for environmental compliance or remediation, and actual future expenditures may be greater than the amounts we currently anticipate.

Our insurance coverage may not be sufficient. Insufficient insurance coverage and increased insurance costs could adversely impact our results of operations, financial condition and cash flows.

We currently have general liability and property insurance in place to cover certain of our facilities in amounts that we consider appropriate. Such policies are subject to certain limits and deductibles and do not include business interruption coverage. Insurance coverage may not be available in the future at current costs or on commercially reasonable terms, and the insurance proceeds received for any loss of, or any damage to, any of our facilities may not be sufficient to restore the loss or damage without negative impact on our results of operations, financial condition and cash flows.

In common with other companies in its line of business that serve coastal regions, CenterPoint Houston does not have insurance covering its transmission and distribution system, other than substations, because CenterPoint Houston believes it to be cost prohibitive. In the future, CenterPoint Houston may not be able to recover the costs incurred in restoring its transmission and distribution properties following hurricanes or other disasters through issuance of storm restoration bonds or a change in its

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regulated rates or otherwise, or any such recovery may not be timely granted. Therefore, CenterPoint Houston may not be able to restore any loss of, or damage to, any of its transmission and distribution properties without negative impact on its results of operations, financial condition and cash flows.

Enable’s operations are subject to all of the risks and hazards inherent in the gathering, processing, transportation and storage of natural gas and crude oil, including:

• damage to pipelines and plants, related equipment and surrounding properties caused by hurricanes, tornadoes, floods, fires and other natural disasters, acts of terrorism and actions by third parties;

• inadvertent damage from construction, vehicles, farm and utility equipment;

• leaks of natural gas, crude oil and other hydrocarbons or losses of natural gas and crude oil as a result of the malfunction of equipment or facilities;

• ruptures, fires and explosions; and

• other hazards that could also result in personal injury and loss of life, pollution and suspension of operations.

We and OGE currently have general liability and property insurance in place to cover certain of Enable’s facilities in amounts that we consider appropriate. Such policies are subject to certain limits and deductibles. These risks could result in substantial losses due to personal injury and/or loss of life, severe damage to and destruction of property, plant and equipment and pollution or other environmental damage. These risks may also result in curtailment or suspension of Enable’s operations. A natural disaster or other hazard affecting the areas in which Enable operates could have a material adverse effect on Enable’s operations. Enable is not fully insured against all risks inherent in its business. Enable currently has general liability and property insurance in place to cover certain of its facilities in amounts that Enable considers appropriate. Such policies are subject to certain limits and deductibles. Enable does not have business interruption insurance coverage for all of its operations. Insurance coverage may not be available in the future at current costs or on commercially reasonable terms, and the insurance proceeds received for any loss of, or any damage to, any of Enable’s facilities may not be sufficient to restore the loss or damage without negative impact on its results of operations and its ability to make cash distributions.

We, CenterPoint Houston and CERC could incur liabilities associated with businesses and assets that we have transferred to others.

Under some circumstances, we, CenterPoint Houston and CERC could incur liabilities associated with assets and businesses we, CenterPoint Houston and CERC no longer own. These assets and businesses were previously owned by Reliant Energy, Incorporated (Reliant Energy), a predecessor of CenterPoint Houston, directly or through subsidiaries and include:

• merchant energy, energy trading and REP businesses transferred to RRI or its subsidiaries in connection with the organization and capitalization of RRI prior to its initial public offering in 2001 and now owned by affiliates of NRG; and

• Texas electric generating facilities transferred to a subsidiary of Texas Genco Holdings, Inc. (Texas Genco) in 2002, later sold to a third party and now owned by an affiliate of NRG.

In connection with the organization and capitalization of RRI (now GenOn), that company and its subsidiaries assumed liabilities associated with various assets and businesses Reliant Energy transferred to them. RRI also agreed to indemnify, and cause the applicable transferee subsidiaries to indemnify, us and our subsidiaries, including CenterPoint Houston and CERC, with respect to liabilities associated with the transferred assets and businesses. These indemnity provisions were intended to place sole financial responsibility on RRI and its subsidiaries for all liabilities associated with the current and historical businesses and operations of RRI, regardless of the time those liabilities arose. If RRI (now GenOn) were unable to satisfy a liability that has been so assumed in circumstances in which Reliant Energy and its subsidiaries were not released from the liability in connection with the transfer, we, CenterPoint Houston or CERC could be responsible for satisfying the liability.

Prior to the distribution of our ownership in RRI to our shareholders, CERC had guaranteed certain contractual obligations of what became RRI’s trading subsidiary.  When the companies separated, RRI agreed to secure CERC against obligations under the guarantees RRI had been unable to extinguish by the time of separation.  Pursuant to such agreement, as amended in December 2007, RRI (now GenOn) agreed to provide to CERC cash or letters of credit as security against CERC’s obligations under its

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remaining guarantees for demand charges under certain gas transportation agreements if and to the extent changes in market conditions expose CERC to a risk of loss on those guarantees based on an annual calculation, with any required collateral to be posted each December.  The undiscounted maximum potential payout of the demand charges under these transportation contracts, which will be in effect until 2018, was approximately $42 million as of December 31, 2014.  Based on market conditions in the fourth quarter of 2014 at the time the most recent annual calculation was made under the agreement, GenOn was not obligated to post any security. If GenOn should fail to perform the contractual obligations, CERC could have to honor its guarantee and, in such event, any collateral then provided as security may be insufficient to satisfy CERC’s obligations.

If GenOn were unable to meet its obligations, it could consider, among various options, restructuring under the bankruptcy laws, in which event GenOn might not honor its indemnification obligations and claims by GenOn’s creditors might be made against us as its former owner.

Reliant Energy and RRI (GenOn’s predecessor) are named as defendants in a number of lawsuits arising out of sales of natural gas in California and other markets. Although these matters relate to the business and operations of GenOn, claims against Reliant Energy have been made on grounds that include liability of Reliant Energy as a controlling shareholder of GenOn’s predecessor. We, CenterPoint Houston or CERC could incur liability if claims in one or more of these lawsuits were successfully asserted against us, CenterPoint Houston or CERC and indemnification from GenOn were determined to be unavailable or if GenOn were unable to satisfy indemnification obligations owed with respect to those claims.

In connection with the organization and capitalization of Texas Genco (now an affiliate of NRG), Reliant Energy and Texas Genco entered into a separation agreement in which Texas Genco assumed liabilities associated with the electric generation assets Reliant Energy transferred to it. Texas Genco also agreed to indemnify, and cause the applicable transferee subsidiaries to indemnify, us and our subsidiaries, including CenterPoint Houston, with respect to liabilities associated with the transferred assets and businesses. In many cases the liabilities assumed were obligations of CenterPoint Houston, and CenterPoint Houston was not released by third parties from these liabilities. The indemnity provisions were intended generally to place sole financial responsibility on Texas Genco and its subsidiaries for all liabilities associated with the current and historical businesses and operations of Texas Genco, regardless of the time those liabilities arose. If Texas Genco (now an affiliate of NRG) were unable to satisfy a liability that had been so assumed or indemnified against, and provided we or Reliant Energy had not been released from the liability in connection with the transfer, CenterPoint Houston could be responsible for satisfying the liability.

In connection with our sale of Texas Genco, the separation agreement was amended to provide that Texas Genco would no longer be liable for, and we would assume and agree to indemnify Texas Genco against, liabilities that Texas Genco originally assumed in connection with its organization to the extent, and only to the extent, that such liabilities are covered by certain insurance policies held by us.

We or our subsidiaries have been named, along with numerous others, as a defendant in lawsuits filed by a number of individuals who claim injury due to exposure to asbestos. Some of the claimants have worked at locations owned by us, but most existing claims relate to facilities previously owned by our subsidiaries. We anticipate that additional claims like those received may be asserted in the future. Under the terms of the arrangements regarding separation of the generating business from us and our sale of that business to an affiliate of NRG, ultimate financial responsibility for uninsured losses from claims relating to the generating business has been assumed by the NRG affiliate, but we have agreed to continue to defend such claims to the extent they are covered by insurance maintained by us, subject to reimbursement of the costs of such defense by the NRG affiliate.

Cyber-attacks, physical security breaches, acts of terrorism or other disruptions could adversely impact our results of operations, financial condition and cash flows or the results of operations, financial condition and cash flows of Enable.

We and Enable are subject to cyber- and physical security risks related to breaches in the systems and technology used (i) to manage operations and other business processes and (ii) to protect sensitive information maintained in the normal course of business. The operation of our electric transmission and distribution system is dependent on not only physical interconnection of our facilities, but also on communications among the various components of our system.  As we deploy smart meters and the intelligent grid, reliance on communication between and among those components increases.  Similarly, the distribution of natural gas to our customers and the gathering, processing and transportation of natural gas or other commodities from Enable’s gathering, processing and pipeline facilities, are dependent on communications among Enable’s facilities and with third-party systems that may be delivering natural gas or other commodities into or receiving natural gas and other products from Enable’s facilities. Disruption of those communications, whether caused by physical disruption such as storms or other natural phenomena, by failure of equipment or technology, or by manmade events, such as cyber-attacks or acts of terrorism, may disrupt our ability or Enable’s ability to conduct operations and control assets. Cyber-attacks could also result in the loss of confidential or proprietary data or security breaches of other information technology systems that could disrupt operations and critical business functions, adversely affect reputation, and subject us or Enable to possible legal claims and liability. Neither we nor Enable is fully insured

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against all cyber-security risks, any of which could have a material adverse effect on either our, or Enable’s, results of operations, financial condition and cash flows. In addition, electrical distribution and transmission facilities and gas distribution and pipeline systems may be targets of terrorist activities that could disrupt either our or Enable’s ability to conduct our respective businesses and have a material adverse effect on either our or Enable’s results of operations, financial condition and cash flows.

Failure to maintain the security of personally identifiable information could adversely affect us.

In connection with our business we collect and retain personally identifiable information of our customers, shareholders and employees. Our customers, shareholders and employees expect that we will adequately protect their personal information, and the United States regulatory environment surrounding information security and privacy is increasingly demanding. A significant theft, loss or fraudulent use of customer, shareholder, employee or CenterPoint Energy data by cyber-crime or otherwise could adversely impact our reputation and could result in significant costs, fines and litigation.

Our results of operations, financial condition and cash flows may be adversely affected if we are unable to successfully operate our facilities or perform certain corporate functions.

Our performance depends on the successful operation of our facilities. Operating these facilities involves many risks, including:

• operator error or failure of equipment or processes;

• operating limitations that may be imposed by environmental or other regulatory requirements;

• labor disputes;

• information technology system failures that impair our information technology infrastructure or disrupt normal business operations;

• information technology failure that affects our ability to access customer information or causes us to lose confidential or proprietary data that materially and adversely affects our reputation or exposes us to legal claims; and

• catastrophic events such as fires, earthquakes, explosions, floods, droughts, hurricanes, terrorism, pandemic health events or other similar occurrences.

Such events may result in a decrease or elimination of revenue from our facilities, an increase in the cost of operating our facilities or delays in cash collections, any of which could have a material adverse effect on our results of operations, financial condition and/or cash flows.

Our success depends upon our ability to attract, effectively transition and retain key employees and identify and develop talent to succeed senior management.

We depend on our senior executive officers and other key personnel. Our success depends on our ability to attract, effectively transition and retain key personnel. The inability to recruit and retain or effectively transition key personnel or the unexpected loss of key personnel may adversely affect our operations. In addition, because of the reliance on our management team, our future success depends in part on our ability to identify and develop talent to succeed senior management. The retention of key personnel and appropriate senior management succession planning will continue to be critically important to the successful implementation of our strategies.

Failure to attract and retain an appropriately qualified workforce could adversely impact our results of operations.

Our business is dependent on our ability to recruit, retain, and motivate employees. Certain circumstances, such as an aging workforce without appropriate replacements, a mismatch of existing skillsets to future needs, or the unavailability of contract resources may lead to operating challenges such as a lack of resources, loss of knowledge or a lengthy time period associated with skill development. Our costs, including costs for contractors to replace employees, productivity costs and safety costs, may rise. Failure to hire and adequately train replacement employees, including the transfer of significant internal historical knowledge and expertise to the new employees, or the future availability and cost of contract labor may adversely affect the ability to manage and operate our business. If we are unable to successfully attract and retain an appropriately qualified workforce, our results of operations could be negatively affected.

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Climate change legislation and regulatory initiatives could result in increased operating costs and reduced demand for our services or Enable’s services.

The United States Congress has from time to time considered adopting legislation to reduce emissions of GHGs, and there has been a wide-ranging policy debate, both nationally and internationally, regarding the impact of these gases and possible means for their regulation.  In addition, efforts have been made and continue to be made in the international community toward the adoption of international treaties or protocols that would address global climate change issues, such as the most recent United Nations Climate Change Conference in Lima, Peru, in 2014. Following a finding by the EPA that certain GHGs represent an endangerment to human health, the EPA adopted two sets of rules regulating GHG emissions under the Clean Air Act, one that requires a reduction in emissions of GHGs from motor vehicles and another that regulates emissions of GHGs from certain large stationary sources. In addition, the EPA expanded its existing GHG emissions reporting requirements to include upstream petroleum and natural gas systems that emit 25,000 metric tons or more of CO₂ equivalent per year. These permitting and reporting requirements could lead to further regulation of GHGs by the EPA.  As a distributor and transporter of natural gas, or a consumer of natural gas in its pipeline and gathering businesses, CERC’s or Enable’s revenues, operating costs and capital requirements, as applicable, could be adversely affected as a result of any regulatory action that would require installation of new control technologies or a modification of its operations or would have the effect of reducing the consumption of natural gas.  Our electric transmission and distribution business, in contrast to some electric utilities, does not generate electricity and thus is not directly exposed to the risk of high capital costs and regulatory uncertainties that face electric utilities that burn fossil fuels to generate electricity.  Nevertheless, CenterPoint Houston’s revenues could be adversely affected to the extent any resulting regulatory action has the effect of reducing consumption of electricity by ultimate consumers within its service territory. Likewise, incentives to conserve energy or use energy sources other than natural gas could result in a decrease in demand for our services.

Climate changes could result in more frequent and more severe weather events which could adversely affect the results of operations of our businesses.

To the extent climate changes occur, our businesses may be adversely impacted, though we believe any such impacts are likely to occur very gradually and hence would be difficult to quantify with specificity.  To the extent global climate change results in warmer temperatures in our service territories, financial results from our natural gas distribution businesses could be adversely affected through lower gas sales, and our gas transmission and field services businesses could experience lower revenues. Another possible climate change is more frequent and more severe weather events, such as hurricanes or tornadoes.  Since many of our facilities are located along or near the Gulf Coast, increased or more severe hurricanes or tornadoes could increase our costs to repair damaged facilities and restore service to our customers.  When we cannot deliver electricity or natural gas to customers or our customers cannot receive our services, our financial results can be impacted by lost revenues, and we generally must seek approval from regulators to recover restoration costs.  To the extent we are unable to recover those costs, or if higher rates resulting from our recovery of such costs result in reduced demand for our services, our future financial results may be adversely impacted.

Aging infrastructure may lead to increased costs and disruptions in operations that could negatively impact our financial results.

CenterPoint Energy has risks associated with aging infrastructure assets.  The age of certain of our assets may result in a need for replacement, or higher level of maintenance costs as a result of our risk based federal and state compliant integrity management programs.  Failure to achieve timely recovery of these expenses could adversely impact revenues and could result in increased capital expenditures or expenses. 

The operation of our facilities depends on good labor relations with our employees.

Several of our businesses have entered into and have in place collective bargaining agreements with different labor unions. There are seven separate bargaining units in CenterPoint Energy, each with a unique collective bargaining agreement.  These contracts will be renegotiated over the next two years.  Any failure to reach an agreement on new labor contracts or to negotiate these labor contracts might result in strikes, boycotts or other labor disruptions. These potential labor disruptions could have a material adverse effect on our businesses, results of operations and/or cash flows. Labor disruptions, strikes or significant negotiated wage and benefit increases, whether due to union activities, employee turnover or otherwise, could have a material adverse effect on our businesses, results of operations and/or cash flows.

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Our businesses will continue to have to adapt to technological change and may not be successful or may have to incur significant expenditures to adapt to technological change.

We operate in businesses that require sophisticated data collection, processing systems, software and other technology. Some of the technologies supporting the industries we serve are changing rapidly. We expect that new technologies will emerge or grow that may be superior to, or may not be compatible with, some of our existing technologies, and may require us to make significant expenditures so that we can continue to provide cost-effective and reliable methods of energy delivery.

Our future success will depend, in part, on our ability to anticipate and adapt to technological changes in a cost-effective manner and to offer, on a timely basis, reliable services that meet customer demands and evolving industry standards. If we fail to adapt successfully to any technological change or obsolescence, or fail to obtain access to important technologies or incur significant expenditures in adapting to technological change, our businesses, operating results and financial condition could be materially and adversely affected.

Our or Enable’s merger and acquisition activities may not be successful or may result in completed acquisitions that do not perform as anticipated.

From time to time, we and Enable have made and may continue to make acquisitions of businesses and assets. However, suitable acquisition candidates may not continue to be available on terms and conditions we or Enable, as the case may be, find acceptable. In addition, any completed or future acquisitions involve substantial risks, including the following:

• acquired businesses or assets may not produce revenues, earnings or cash flow at anticipated levels;

• acquired businesses or assets could have environmental, permitting or other problems for which contractual protections prove inadequate;

• we or Enable may assume liabilities that were not disclosed to us, that exceed our estimates, or for which our rights to indemnification from the seller are limited;

• we or Enable may be unable to integrate acquired businesses successfully and realize anticipated economic, operational and other benefits in a timely manner, which could result in substantial costs and delays or other operational, technical or financial problems; and

• acquisitions, or the pursuit of acquisitions, could disrupt ongoing businesses, distract management, divert resources and make it difficult to maintain current business standards, controls and procedures.    

We are involved in numerous legal proceedings, the outcome of which are uncertain, and resolutions adverse to us could negatively affect our financial results.

We are subject to numerous legal proceedings, the most significant of which are summarized in Footnote 14 of the Notes to the Consolidated Financial Statements. Litigation is subject to many uncertainties, and we cannot predict the outcome of individual matters with assurance. Final resolution of these matters may require additional expenditures over an extended period of time that may be in excess of established reserves and may have a material adverse effect on our financial results.

Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

Character of Ownership

We lease or own our principal properties in fee, including our corporate office space and various real property. Most of our electric lines and gas mains are located, pursuant to easements and other rights, on public roads or on land owned by others.

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Electric Transmission & Distribution

For information regarding the properties of our Electric Transmission & Distribution business segment, please read “Business — Our Business — Electric Transmission & Distribution — Properties” in Item 1 of this report, which information is incorporated herein by reference.

Natural Gas Distribution

For information regarding the properties of our Natural Gas Distribution business segment, please read “Business — Our Business — Natural Gas Distribution — Assets” in Item 1 of this report, which information is incorporated herein by reference.

Energy Services

For information regarding the properties of our Energy Services business segment, please read “Business — Our Business — Energy Services — Assets” in Item 1 of this report, which information is incorporated herein by reference.

Midstream Investments

For information regarding the properties of our Midstream Investments business segment, please read “Business — Our Business — Midstream Investments” in Item 1 of this report, which information is incorporated herein by reference.

Other Operations

For information regarding the properties of our Other Operations business segment, please read “Business — Our Business — Other Operations” in Item 1 of this report, which information is incorporated herein by reference.

Item 3. Legal Proceedings

For a discussion of material legal and regulatory proceedings affecting us, please read “Business — Regulation” and “Business — Environmental Matters” in Item 1 of this report, “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources — Regulatory Matters” in Item 7 of this report and Note 14(d) to our consolidated financial statements, which information is incorporated herein by reference.

Item 4. Mine Safety Disclosures

Not applicable.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

As of February 17, 2015, our common stock was held by approximately 35,327 shareholders of record. Our common stock is listed on the New York and Chicago Stock Exchanges and is traded under the symbol “CNP.”

The following table sets forth the high and low closing prices of the common stock of CenterPoint Energy on the New York Stock Exchange composite tape during the periods indicated, as reported by Bloomberg, and the cash dividends declared in these periods.

	Market Price				Dividend Declared
	High		Low		Per Share
2014
First Quarter					$	0.2375
January 3			$	22.81
February 21	$	24.48
Second Quarter					$	0.2375
April 7			$	23.39
June 30	$	25.54
Third Quarter					$	0.2375
July 1	$	25.38
August 6			$	23.56
Fourth Quarter					$	0.2375
November 10	$	25.38
December 15			$	21.54
2013
First Quarter					$	0.2075
January 8			$	19.47
March 28	$	23.96
Second Quarter					$	0.2075
April 30	$	24.68
June 20			$	22.49
Third Quarter					$	0.2075
August 1	$	25.16
September 5			$	22.76
Fourth Quarter					$	0.2075
November 15	$	25.07
December 13			$	22.68

The closing market price of our common stock on December 31, 2014 was $23.43 per share.

The amount of future cash dividends will be subject to determination based upon our results of operations and financial condition, our future business prospects, any applicable contractual restrictions and other factors that our board of directors considers relevant and will be declared at the discretion of the board of directors.

On January 22, 2015, our board of directors declared a regular quarterly cash dividend of $0.2475 per share, payable on March 10, 2015 to shareholders of record on February 13, 2015.

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Repurchases of Equity Securities

During the quarter ended December 31, 2014, none of our equity securities registered pursuant to Section 12 of the Securities Exchange Act of 1934 were purchased by or on behalf of us or any of our “affiliated purchasers,” as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934.

Item 6.        Selected Financial Data

The following table presents selected financial data with respect to our consolidated financial condition and consolidated results of operations and should be read in conjunction with our consolidated financial statements and the related notes in Item 8 of this report.

	Year Ended December 31,
	2014				2013				2012			2011 (3)				2010
	(in millions, except per share amounts)
Revenues	$	9,226			$	8,106			$	7,452		$	8,450			$	8,785
Equity in Earnings of Unconsolidated Affiliates	308			(1)	188			(2)	31			30				29
Income before Extraordinary Item	611				311				417			770				442
Extraordinary Item, net of tax	—				—				—			587				—
Net income	$	611			$	311			$	417		$	1,357			$	442
Basic earnings per common share:
Income before Extraordinary Item	$	1.42			$	0.73			$	0.98		$	1.81			$	1.08
Extraordinary Item, net of tax	—				—				—			1.38				—
Basic earnings per common share	$	1.42			$	0.73			$	0.98		$	3.19			$	1.08
Diluted earnings per common share:
Income before Extraordinary Item	$	1.42			$	0.72			$	0.97		$	1.80			$	1.07
Extraordinary Item, net of tax	—				—				—			1.37				—
Diluted earnings per common share	$	1.42			$	0.72			$	0.97		$	3.17			$	1.07
Cash dividends declared per common share	$	0.95			$	0.83			$	0.81		$	0.79			$	0.78
Dividend payout ratio	67		%		114		%		83		%	44		%	(4)	72		%
Return on average common equity	14		%		7		%		10		%	21		%	(4)	15		%
Ratio of earnings to fixed charges	2.79				2.42				2.29			2.96			(4)	2.08
At year-end:
Book value per common share	$	10.58			$	10.09			$	10.09		$	9.91			$	7.53
Market price per common share	23.43				23.18				19.25			20.09				15.72
Market price as a percent of book value	221		%		230		%		191		%	203		%		209		%
Total assets	$	23,200			$	21,870			$	22,871		$	21,703			$	20,111
Short-term borrowings	53				43				38			62				53
Transition and system restoration bonds, including current maturities	3,046				3,400				3,847			2,522				2,805
Other long-term debt, including current maturities	5,758				4,914				5,910			6,603				6,624
Capitalization:
Common stock equity	34		%		34		%		31		%	32		%		25		%
Long-term debt, including current maturities	66		%		66		%		69		%	68		%		75		%
Capitalization, excluding transition and system restoration bonds:
Common stock equity	44		%		47		%		42		%	39		%		33		%
Long-term debt, excluding transition and system restoration bonds, and including current maturities	56		%		53		%		58		%	61		%		67		%
Capital expenditures	$	1,402			$	1,272			$	1,188		$	1,191			$	1,462

___________________

(1) As of December 31, 2014, we owned approximately 55.4% of the limited partner interest in Enable Midstream Partners, LP (Enable) and 0.1% of Southeast Supply Header, LLC (SESH), each an unconsolidated subsidiary, that we account for on an equity basis.

(2) Following the formation of Enable on May 1, 2013, Enable owned substantially all of our former Interstate Pipelines and Field Services business segments, except for our retained 25.05% interest in SESH. As of December 31, 2013, we owned approximately 58.3% of the limited partner interest in Enable.

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(3) 2011 Income before Extraordinary Item includes a $224 million after-tax ($0.53 and $0.52 per basic and diluted share, respectively) return on true-up balance related to a portion of interest on the appealed true-up amount.

(4) Calculated using Income before Extraordinary Item.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis should be read in combination with ourconsolidated financial statements included in Item 8 herein.

OVERVIEW

Background

We are a public utility holding company. Our operating subsidiaries own and operate electric transmission and distribution facilities and natural gas distribution facilities and own interests in Enable Midstream Partners, LP (Enable) as described below. Our indirect wholly owned subsidiaries include:

• CenterPoint Energy Houston Electric, LLC (CenterPoint Houston), which engages in the electric transmission and distribution business in a 5,000-square mile area of the Texas Gulf Coast that includes the city of Houston; and

• CenterPoint Energy Resources Corp. (CERC Corp. and, together with its subsidiaries, CERC), which owns and operates natural gas distribution systems. A wholly owned subsidiary of CERC Corp. offers variable and fixed-price physical natural gas supplies primarily to commercial and industrial customers and electric and gas utilities. As of December 31, 2014, CERC Corp. also owned approximately 55.4% of the limited partner interests in Enable, which owns, operates and develops natural gas and crude oil infrastructure assets.

Business Segments

In this Management’s Discussion and Analysis, we discuss our results from continuing operations on a consolidated basis and individually for each of our business segments. We also discuss our liquidity, capital resources and certain critical accounting policies. We are first and foremost an energy delivery company and it is our intention to remain focused on these segments of the energy business. The results of our business operations are significantly impacted by weather, customer growth, economic conditions, cost management, competition, rate proceedings before regulatory agencies and other actions of the various regulatory agencies to whose jurisdiction we are subject. Our electric transmission and distribution services are subject to rate regulation and are reported in the Electric Transmission & Distribution business segment, as are impacts of generation-related stranded costs and other true-up balances recoverable by the regulated electric utility. Our natural gas distribution services are also subject to rate regulation and are reported in the Natural Gas Distribution business segment. The results of our Midstream Investments segment are dependent upon the results of Enable, which are driven primarily by the volume of natural gas that Enable gathers, processes and transports across its systems and other factors as discussed below under “- Factors Influencing Our Midstream Investments Segment.” A summary of our reportable business segments as of December 31, 2014 is set forth below:

Electric Transmission & Distribution

Our electric transmission and distribution operations provide electric transmission and distribution services to retail electric providers (REPs) serving over two million metered customers in a 5,000-square-mile area of the Texas Gulf Coast that has a population of approximately six million people and includes the city of Houston.

On behalf of REPs, CenterPoint Houston delivers electricity from power plants to substations, from one substation to another and to retail electric customers in locations throughout CenterPoint Houston’s certificated service territory. The Electric Reliability Council of Texas, Inc. (ERCOT) serves as the regional reliability coordinating council for member electric power systems in Texas. ERCOT membership is open to consumer groups, investor and municipally-owned electric utilities, rural electric cooperatives, independent generators, power marketers, river authorities and REPs. The ERCOT market represents approximately 85% of the demand for power in Texas and is one of the nation’s largest power markets. Transmission and distribution services are provided under tariffs approved by the Public Utility Commission of Texas (Texas Utility Commission).

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Natural Gas Distribution

CERC owns and operates our regulated natural gas distribution business (NGD), which engages in intrastate natural gas sales to, and natural gas transportation for, approximately 3.4 million residential, commercial and industrial customers in Arkansas, Louisiana, Minnesota, Mississippi, Oklahoma and Texas.

Energy Services

CERC’s operations also include non-rate regulated natural gas sales to, and transportation services for, commercial and industrial customers in 23 states in the central United States.

Midstream Investments

We have a significant equity investment in Enable, an unconsolidated subsidiary that owns, operates and develops natural gas and crude oil assets. Our Midstream Investments segment includes equity earnings associated with the operations of Enable and a 0.1% interest in Southeast Supply Header, LLC (SESH) owned by CERC.

Other Operations

Our other operations business segment includes office buildings and other real estate used in our business operations and other corporate operations which support all of our business operations.

EXECUTIVE SUMMARY

Factors Influencing Our Businesses

We are an energy delivery company. The majority of our revenues are generated from the sale of natural gas and the transmission and delivery of electricity by our subsidiaries. We do not own or operate electric generating facilities or make retail sales to end-use electric customers. To assess our financial performance, our management primarily monitors operating income and cash flows from our business segments. Within these broader financial measures, we monitor margins, operation and maintenance expense, interest expense, capital spending and working capital requirements. In addition to these financial measures we also monitor a number of variables that management considers important to the operation of our business segments, including the number of customers, throughput, use per customer, commodity prices and heating and cooling degree days. We also monitor system reliability, safety factors and customer satisfaction to gauge our performance.

To the extent adverse economic conditions affect our suppliers and customers, results from our energy delivery businesses may suffer.  Reduced demand and lower energy prices could lead to financial pressure on some of our customers who operate within the energy industry. Also, adverse economic conditions, coupled with concerns for protecting the environment, may cause consumers to use less energy or avoid expansions of their facilities, resulting in less demand for our services.

Performance of our Electric Transmission & Distribution and Natural Gas Distribution business segments is significantly influenced by the number of customers and energy usage per customer. Weather conditions can have a significant impact on energy usage, and we compare our results on a weather adjusted basis.  In 2012, we generally experienced normal weather in the summer months. However, every state in which we distribute natural gas had the warmest winter on record. In 2013, we experienced a colder than normal spring and very cold weather in November and December in Houston and all of the states in which we have gas customers. The cooler weather continued into 2014 and throughout the year, resulting in a colder than normal January and February and milder temperatures for the rest of the year, including the summer months, in the Houston area. Long term national trends indicate customers have reduced their energy consumption, and reduced consumption can adversely affect our results. However, due to more affordable energy prices and continued economic improvement in the areas we serve, the trend toward lower usage has slowed in some of the areas we serve.  In addition, in many of our service areas, particularly in the Houston area and in Minnesota, we have benefited from a growth in the number of customers that also tends to mitigate the effects of reduced consumption.  We anticipate that this trend will continue as the regions’ economies continue to grow.  The profitability of our businesses is influenced significantly by the regulatory treatment we receive from the various state and local regulators who set our electric and gas distribution rates.

Our Energy Services business segment contracts with customers for transportation, storage and sales of natural gas on an unregulated basis.  Its operations serve customers in the central United States.  The segment benefits from favorable price differentials, either on a geographic basis or on a seasonal basis. While this business utilizes financial derivatives to hedge its exposure to price movements, it does not engage in speculative or proprietary trading and maintains a low value at risk level, or

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VaR, to avoid significant financial exposures.  In 2014, basis volatility created asset optimization revenues not experienced in many years and the extreme cold weather increased throughput and margin from our weather sensitive customers. Lower geographic and seasonal price differentials during 2013 and 2012 adversely affected results for this business segment.

The nature of our businesses requires significant amounts of capital investment, and we rely on internally generated cash, borrowings under our credit facilities, proceeds from commercial paper and issuances of debt and equity in the capital markets to satisfy these capital needs. We strive to maintain investment grade ratings for our securities in order to access the capital markets on terms we consider reasonable. A reduction in our ratings generally would increase our borrowing costs for new issuances of debt, as well as borrowing costs under our existing revolving credit facilities, and may prevent us from accessing the commercial paper markets. Disruptions in the financial markets can also affect the availability of new capital on terms we consider attractive. In those circumstances, companies like us may not be able to obtain certain types of external financing or may be required to accept terms less favorable than they would otherwise accept. For that reason, we seek to maintain adequate liquidity for our businesses through existing credit facilities and prudent refinancing of existing debt.

We expect to make contributions to our pension plans aggregating approximately $66 million in 2015 and may need to make larger contributions in subsequent years. Consistent with the regulatory treatment of such costs, we can defer the amount of pension expense that differs from the level of pension expense included in our base rates for our Electric Transmission & Distribution business segment and NGD in Texas.

Factors Influencing Our Midstream Investments Segment

The results of our Midstream Investments segment are primarily dependent upon the results of Enable, which are driven primarily by the volume of natural gas that Enable gathers, processes and transports across its systems, which depends significantly on the level of production from natural gas wells connected to its systems across a number of U.S. mid-continent markets. Aggregate production volumes are affected by the overall amount of oil and gas drilling and completion activities, as production must be maintained or increased by new drilling or other activity, because the production rate of oil and gas wells declines over time.

Oil and gas producers’ willingness to engage in new drilling is determined by a number of factors, the most important of which are the prevailing and projected prices of natural gas, NGLs and crude oil, the cost to drill and operate a well, the availability and cost of capital and environmental and government regulations. Prices of natural gas, crude oil, and NGLs have historically experienced periods of significant volatility. Enable’s results are also impacted by commodity price differentials between receipt and delivery points on its systems across the various markets that it serves. Enable has attempted to mitigate the impact of commodity prices on its business by entering into hedges, focusing on contracting fee-based business, and converting existing commodity-based contracts to fee-based contracts. Recently, the prices of crude oil, NGLs and natural gas have declined significantly. Should lower commodity prices persist, Enable’s future volumes and cash flows may be negatively impacted. The level of drilling is expected to positively correlate with long-term trends in commodity prices. Similarly, production levels nationally and regionally generally tend to positively correlate with drilling activity.

Over the past several years, there has been a fundamental shift in U.S. natural gas and crude oil production towards tight gas formations and shale plays. The emergence of these plays and advancements in technology have been crucial factors that have allowed producers to efficiently extract significant volumes of natural gas, NGLs and crude oil. Recently, declining crude oil and natural gas liquids prices have resulted in current and anticipated decreases in crude oil and natural gas drilling activity. Should lower prices and producer activity persist for a sustained period, Enable’s future volumes and cash flows may be negatively impacted. To maintain and increase throughput volumes on its systems, Enable must continue to contract its capacity to shippers, including producers and marketers. Enable’s transportation and storage systems compete for customers based on the type of service a customer needs, operating flexibility, receipt and delivery points and geographic flexibility and available capacity and price. To maintain and increase Enable’s transportation and storage volumes, it must continue to contract its capacity to shippers, including producers, marketers, LDCs, power generators and industrial end-users.

Natural gas continues to be a critical component of energy supply and demand in the United States. Over the long term, Enable’s management believes that the prospects for continued natural gas demand are favorable and will be driven by population and economic growth, as well as the continued displacement of coal-fired electricity generation by natural gas-fired electricity generation due to the low prices of natural gas and stricter government environmental regulations on the mining and burning of coal. According to the U.S. Energy Information Administration (EIA), demand for natural gas in the electric power sector is projected to increase from approximately 9.3 Tcf in 2012 to approximately 11.2 Tcf in 2040, with a portion of the growth attributable to the retirement of 50 gigawatts of coal-fired capacity by 2020. The EIA also projects that natural gas consumption in the industrial sector will be higher due to the rejuvenation of the industrial sector as it benefits from low natural gas prices. However, the EIA expects growth in natural gas consumption for power generation and in the industrial sector to be partially offset by decreased

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usage in the residential sector. Enable’s management believes that increasing consumption of natural gas over the long term will continue to drive demand for Enable’s natural gas gathering, processing, transportation and storage services.

Enable depends on access to the capital markets to fund expansion capital expenditures. Historically, unit prices of publicly traded midstream master limited partnerships have experienced periods of volatility. In addition, because Enable’s common units are yield-based securities, rising market interest rates could impact the relative attractiveness of Enable’s common units to investors. Capital market volatility could limit Enable’s ability to timely issue units or debt on satisfactory terms, or at all, which may limit its ability to expand its operations or make future acquisitions. Our Midstream Investments segment currently includes a 0.1% interest in SESH owned by CERC that may be contributed by CERC to Enable in the future, upon exercise of certain put or call rights under which CERC would contribute to Enable CERC’s retained interest in SESH.

Significant Events

Enable Initial Public Offering. On April 16, 2014, Enable Midstream Partners, LP (Enable) completed its initial public offering (IPO) of 28,750,000 common units at a price of $20.00 per unit, which included 3,750,000 common units sold by ArcLight Capital Partners, LLC (ArcLight) pursuant to an over-allotment option that was fully exercised by the underwriters. Enable received $464 million in net proceeds from the sale of the units, after deducting underwriting fees, structuring fees and other offering costs.

In connection with its IPO, on March 25, 2014, Enable effected a 1 for 1.279082616 reverse unit split. Immediately following the unit split, CenterPoint Energy Resources Corp. (CERC Corp.) owned 227,508,825 common units, representing a 58.3% limited partner interest in Enable. Also in connection with Enable’s IPO, 139,704,916 of CERC Corp.’s common units were converted into subordinated units. The principal difference between Enable common units and subordinated units is that in any quarter during the subordination period, holders of the subordinated units are not entitled to receive any distribution of available cash until the common units have received the minimum quarterly distribution plus any arrearages in the payment of the minimum quarterly distribution from prior quarters. If Enable does not pay distributions on its subordinated units, the subordinated units will not accrue arrearages for those unpaid distributions. At the end of the subordination period, CenterPoint Energy’s subordinated units in Enable will be converted to common units in Enable on a one-for-one basis.

Subsequent to the IPO, Enable continues to be controlled jointly by CenterPoint Energy and OGE; each own 50% of the management rights in the general partner of Enable. CenterPoint Energy and OGE also own a 40% and 60% economic interest, respectively, in the incentive distribution rights held by the general partner of Enable.

As a result of Enable’s IPO, CenterPoint Energy’s limited partner interest in Enable was reduced from approximately 58.3% to approximately 54.7%. CenterPoint Energy accounted for the dilution of its investment in Enable as a result of Enable’s IPO as a failed partial sale of in-substance real estate. CenterPoint Energy did not receive any cash from Enable’s IPO and, as such, CenterPoint Energy did not recognize a gain or loss. CenterPoint Energy’s basis difference in Enable was reduced for the impact of the Enable IPO.

In accordance with the Enable formation agreements, CenterPoint Energy had certain put rights, and Enable had certain call rights, exercisable with respect to the 25.05% interest in SESH retained by CenterPoint Energy on May 1, 2013 (Closing Date), under which CenterPoint Energy would contribute its retained interest in SESH, in exchange for a specified number of limited partner units in Enable and a cash payment, payable either from CenterPoint Energy to Enable or from Enable to CenterPoint Energy, to the extent of changes in the value of SESH subject to certain restrictions. Specifically, the rights were and are exercisable with respect to (1) a 24.95% interest in SESH (24.95% Put), which closed on May 30, 2014 as discussed below and (2) a 0.1% interest in SESH, which may be exercised no earlier than June 2015 for 25,341 common units in Enable.

On May 30, 2014, CenterPoint Energy closed its 24.95% Put and contributed to Enable its 24.95% interest in SESH in exchange for 6,322,457 common units of Enable, which increased CenterPoint Energy’s limited partner interest in Enable from approximately 54.7% to approximately 55.4%. No cash payment was required to be made pursuant to the Enable formation agreements in connection with CenterPoint Energy’s exercise of the 24.95% Put. CenterPoint Energy accounted for the contribution of its 24.95% interest in SESH to Enable in exchange for common units of Enable as a non-monetary transaction of in-substance real estate equity method investments. As such, CenterPoint Energy recorded the 6,322,457 common units at the historical cost of the contributed 24.95% interest in SESH of $196 million and recorded no gain or loss in connection with its exercise of the 24.95% Put. As a result, CenterPoint Energy’s basis difference in Enable was reduced for the impact of its exercise of the 24.95% Put.

CenterPoint Energy incurred natural gas expenses, including transportation and storage costs, of $130 million and $123 million, during the year ended December 31, 2014 and 2013, respectively, for transactions with Enable occurring on or after the Closing Date.

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As of December 31, 2014, CenterPoint Energy held an approximate 55.4% limited partner interest in Enable consisting of 94,126,366 common units and 139,704,916 subordinated units and a 0.1% interest in SESH. On December 31, 2014, Enable’s common units closed at $19.39 per unit on the New York Stock Exchange.

Debt Matters. Approximately $44 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Energy Houston Electric, LLC (CenterPoint Houston) were redeemed on March 3, 2014 at 101% of their principal amount plus accrued interest. The bonds had an interest rate of 4.25%, were scheduled to mature in 2017 and were collateralized by general mortgage bonds of CenterPoint Houston.

Approximately $56 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Houston were purchased by CenterPoint Houston on March 3, 2014 at 101% of their principal amount plus accrued interest pursuant to the mandatory tender provisions of the bonds. The bonds had an interest rate of 5.60% prior to CenterPoint Houston’s purchase and have a variable rate thereafter. The bonds mature in 2027 and are collateralized by general mortgage bonds of CenterPoint Houston. The purchased pollution control bonds may be remarketed.

On March 17, 2014, CenterPoint Houston issued $600 million principal amount of 4.50% General Mortgage Bonds due 2044. The proceeds from the sale of the bonds were used for general limited liability company purposes, including the repayment of short-term notes payable to affiliated companies.

Approximately $84 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Energy Houston Electric, LLC (CenterPoint Houston) were redeemed on June 2, 2014 at 100% of their principal amount plus accrued interest. The bonds had an interest rate of 4.25%, were scheduled to mature in 2017 and were collateralized by general mortgage bonds of CenterPoint Houston.

On September 9, 2014, our revolving credit facility and the revolving credit facilities of CenterPoint Houston and CERC Corp. were amended to, among other things, extend the maturity date of the commitments under the credit facilities from September 9, 2018 to September 9, 2019. The amendments also reduced the swingline and letter of credit sub-facilities under each credit facility, with total commitments under each credit facility remaining unchanged.

CERTAIN FACTORS AFFECTING FUTURE EARNINGS

Our past earnings and results of operations are not necessarily indicative of our future earnings and results of operations. The magnitude of our future earnings and results of our operations will depend on or be affected by numerous factors including:

• state and federal legislative and regulatory actions or developments affecting various aspects of our businesses (including the businesses of Enable, including, among others, energy deregulation or re-regulation, pipeline integrity and safety, health care reform, financial reform, tax legislation and actions regarding the rates charged by our regulated businesses;

• local, state and federal legislative and regulatory actions or developments relating to the environment, including those related to global climate change;

• timely and appropriate rate actions that allow recovery of costs and a reasonable return on investment;

• the timing and outcome of any audits, disputes and other proceedings related to taxes;

• problems with regulatory approval, construction, implementation of necessary technology or other issues with respect to major capital projects that result in delays or in cost overruns that cannot be recouped in rates;

• industrial, commercial and residential growth in our service territories and changes in market demand, including the effects of energy efficiency measures and demographic patterns;

• changes in technology, particularly with respect to efficient battery storage or emergence or growth of new, developing or alternative sources of generation;

• the timing and extent of changes in commodity prices, particularly natural gas, and the effects of geographic and seasonal commodity price differentials;

• weather variations and other natural phenomena, including the impact of severe weather events on operations and capital;

• any direct or indirect effects on our facilities, operations and financial condition resulting from terrorism, cyber-attacks, data security breaches or other attempts to disrupt our businesses or the businesses of third parties, or other catastrophic events;

• the impact of unplanned facility outages;

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• timely and appropriate regulatory actions allowing securitization or other recovery of costs associated with any future hurricanes or natural disasters;

• changes in interest rates or rates of inflation;

• commercial bank and financial market conditions, our access to capital, the cost of such capital, and the results of our financing and refinancing efforts, including availability of funds in the debt capital markets;

• actions by credit rating agencies;

• effectiveness of our risk management activities;

• inability of various counterparties to meet their obligations to us;

• non-payment for our services due to financial distress of our customers;

• the ability of GenOn Energy, Inc. (formerly known as RRI Energy, Inc., Reliant Energy, Inc. and Reliant Resources, Inc.), a wholly owned subsidiary of NRG Energy, Inc. (NRG), and its subsidiaries to satisfy their obligations to us, including indemnity obligations, or obligations in connection with the contractual arrangements pursuant to which we are their guarantor;

• the ability of retail electric providers (REPs), including REP affiliates of NRG and Energy Future Holdings Corp., to satisfy their obligations to us and our subsidiaries;

• our ability to recruit, effectively transition and retain management and key employees;

• the outcome of litigation brought by or against us;

• our ability to control costs;

• our ability to invest planned capital;

• the investment performance of our pension and postretirement benefit plans;

• our potential business strategies, including restructurings, joint ventures and acquisitions or dispositions of assets or businesses, which we cannot assure you will be completed or will have the anticipated benefits to us;

• acquisition and merger activities involving us or our competitors;

• future economic conditions in regional and national markets and their effect on sales, prices and costs;

• the performance of Enable, the amount of cash distributions we receive from Enable, and the value of our interest in Enable, and factors that may have a material impact on such performance, cash distributions and value, including certain of the factors specified above and:

◦ the achievement of anticipated operational and commercial synergies and expected growth opportunities, and the successful implementation of its business plan;

◦ competitive conditions in the midstream industry, and actions taken by Enable’s customers and competitors, including the extent and timing of the entry of additional competition in the markets served by Enable;

◦ the timing and extent of changes in the supply of natural gas and associated commodity prices, particularly prices of natural gas and natural gas liquids (NGLs), the competitive effects of the available pipeline capacity in the regions served by Enable, and the effects of geographic and seasonal commodity price differentials, including the effects of these circumstances on re-contracting available capacity on Enable’s interstate pipelines;

◦ the demand for natural gas, NGLs and transportation and storage services;

◦ environmental and other governmental regulations, including the availability of drilling permits and the regulation of hydraulic fracturing;

◦ changes in tax status;

◦ access to growth capital;

◦ the availability and prices of raw materials for current and future construction projects; and

• other factors we discuss under “Risk Factors” in Item 1A of this report and in other reports we file from time to time with the SEC.

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CONSOLIDATED RESULTS OF OPERATIONS

All dollar amounts in the tables that follow are in millions, except for per share amounts.

	Year Ended December 31,
	2014			2013			2012
Revenues	$	9,226		$	8,106		$	7,452
Expenses	8,291			7,096			6,414
Operating Income	935			1,010			1,038
Gain on Marketable Securities	163			236			154
Loss on Indexed Debt Securities	(86		)	(193		)	(71		)
Interest and Other Finance Charges	(353		)	(351		)	(422		)
Interest on Transition and System Restoration Bonds	(118		)	(133		)	(147		)
Equity in Earnings of Unconsolidated Affiliates	308			188			31
Step acquisition gain	—			—			136
Other Income, net	36			24			38
Income Before Income Taxes	885			781			757
Income Tax Expense	274			470			340
Net Income	$	611		$	311		$	417
Basic Earnings Per Share	$	1.42		$	0.73		$	0.98
Diluted Earnings Per Share	$	1.42		$	0.72		$	0.97

2014 Compared to 2013

Net Income.  We reported net income of $611 million ($1.42 per diluted share) for 2014 compared to $311 million ($0.72 per diluted share) for the same period in 2013. The increase in net income of $300 million was primarily due to a $196 million decrease in income tax expense discussed below, a $120 million increase in equity earnings of unconsolidated affiliates, a $107 million decrease in the loss on our indexed debt securities, a $13 million decrease in interest expense and a $12 million increase in other income, which were partially offset by a $75 million decrease in operating income (discussed below by segment) and a $73 million decrease in the gain on our marketable securities.

Income Tax Expense.  We reported an effective tax rate of 31.0% and 60.2% for the years ended December 31, 2014 and 2013, respectively.  The effective tax rate of 31.0% for 2014 is primarily due to a $29 million tax benefit recognized upon completion of a tax basis balance sheet review and a $13 million reversal of previously accrued taxes as a result of final positions taken in the 2013 tax returns.  We determined the impact of the $29 million adjustment was not material to any prior period or the year ended December 31, 2014.  The effective tax rate of 60.2% for 2013 is primarily attributable to a net $196 million charge to deferred tax expense due to the formation of Enable. For more information, see Note 13 to our consolidated financial statements. 

2013 Compared to 2012

Net Income.  We reported net income of $311 million ($0.72 per diluted share) for 2013 compared to $417 million ($0.97 per diluted share) for the same period in 2012. The decrease in net income of $106 million was primarily due to a $136 million non-cash step acquisition gain related to the acquisition of an additional 50% interest in Waskom in 2012, a $130 million increase in income tax expense discussed below, a $122 million increase in the loss on our indexed debt securities and a $28 million decrease in operating income (discussed below by segment). Operating income in 2012 included a $252 million non-cash goodwill impairment charge. These decreases were partially offset by a $157 million increase in equity earnings of unconsolidated affiliates, a $85 million decrease in interest expense and a $82 million increase in the gain on our marketable securities.

Income Tax Expense.   We reported an effective tax rate of 60.2% for 2013 compared to 44.9% for the same period in 2012. Our effective tax rate for 2013 increased by 15.3% primarily as a result of the formation of Enable with deferred tax expense of $225 million related to the book-to-tax basis difference for contributed non-tax deductible goodwill and a tax benefit of $29 million

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associated with the remeasurement of state deferred taxes at formation. In addition, we recognized a tax benefit of $8 million based on the settlement with the Internal Revenue Service (IRS) of outstanding tax claims for the 2002 and 2003 audit cycles. Our effective tax rate for 2013 was approximately 36.2% excluding the tax effects from the adjustments described above.

Our effective tax rate for 2012 of 44.9% was primarily impacted by an increase in tax expense of $88 million related to the non-tax deductible impairment of goodwill of $252 million and a reduction in tax expense of $28 million for the release of tax reserves settled with the IRS. Our effective tax rate for 2012 was approximately 37% excluding the tax effects from the adjustments described above.

RESULTS OF OPERATIONS BY BUSINESS SEGMENT

The following table presents operating income (loss) (in millions) for each of our business segments for 2014, 2013 and 2012. Included in revenues are intersegment sales. We account for intersegment sales as if the sales were to third parties, that is, at current market prices.

Operating Income (Loss) by Business Segment

	Year Ended December 31,
	2014		2013			2012
Electric Transmission & Distribution	$	595	$	607		$	639
Natural Gas Distribution	287		263			226
Energy Services	52		13			(250		)
Interstate Pipelines	—		72			207
Field Services	—		73			214
Other Operations	1		(18		)	2
Total Consolidated Operating Income	$	935	$	1,010		$	1,038

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Electric Transmission & Distribution

The following tables provide summary data of our Electric Transmission & Distribution business segment, CenterPoint Houston, for 2014, 2013 and 2012 (in millions, except throughput and customer data):

	Year Ended December 31,
	2014		2013		2012
Revenues:
Electric transmission and distribution utility	$	2,279	$	2,063	$	1,949
Transition and system restoration bond companies	566		507		591
Total revenues	2,845		2,570		2,540
Expenses:
Operation and maintenance, excluding transition and system restoration bond companies	1,251		1,045		942
Depreciation and amortization, excluding transition and system restoration bond companies	327		319		301
Taxes other than income taxes	224		225		214
Transition and system restoration bond companies	448		374		444
Total expenses	2,250		1,963		1,901
Operating Income	$	595	$	607	$	639
Operating Income:
Electric transmission and distribution operations	$	477	$	474	$	492
Transition and system restoration bond companies (1)	118		133		147
Total segment operating income	$	595	$	607	$	639
Throughput (in gigawatt-hours (GWh)):
Residential	27,498		27,485		27,315
Total	81,839		79,985		78,593
Number of metered customers at end of period:
Residential	2,033,027		1,982,699		1,943,423
Total	2,299,247		2,244,289		2,199,764

___________________

(1) Represents the amount necessary to pay interest on the transition and system restoration bonds.

2014 Compared to 2013.  Our Electric Transmission & Distribution business segment reported operating income of $595 million for 2014, consisting of $477 million from our regulated electric transmission and distribution utility operations (TDU) and $118 million related to transition and system restoration bond companies. For 2013, operating income totaled $607 million, consisting of $474 million from the TDU and $133 million related to transition and system restoration bond companies. TDU operating income increased $3 million due to customer growth ($33 million) from the addition of almost 55,000 new customers, higher equity return ($23 million), primarily related to true-up proceeds and higher energy efficiency performance bonus ($15 million), partially offset by increased labor and support services costs ($21 million), increased contracts and services ($19 million), lower right of way revenues ($8 million), increased depreciation ($8 million), an adjustment to our claims liability reserve ($6 million) and decreased usage ($5 million), primarily due to milder weather. Increased transmission costs of $168 million were largely offset by increased transmission revenue.

2013 Compared to 2012.  Our Electric Transmission & Distribution business segment reported operating income of $607 million for 2013, consisting of $474 million from the TDU and $133 million related to transition and system restoration bond companies. For 2012, operating income totaled $639 million, consisting of $492 million from the TDU and $147 million related to transition and system restoration bond companies. TDU operating income decreased $18 million due to decreased usage ($13 million), primarily due to unfavorable weather, increased taxes other than income taxes ($11 million), increased depreciation ($10 million, excluding $8 million from increased investment in AMS offset by the related revenues), increased labor and benefits costs ($7 million), increased contracts and services ($4 million), increased support services ($4 million) and increased insurance costs

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($3 million), partially offset by customer growth ($26 million) from the addition of over 44,000 new customers and higher transmission-related revenues net of the costs billed by transmission providers ($9 million).

Natural Gas Distribution

The following table provides summary data of our Natural Gas Distribution business segment for 2014, 2013 and 2012 (in millions, except throughput and customer data):

	Year Ended December 31,
	2014		2013		2012
Revenues	$	3,301	$	2,863	$	2,342
Expenses:
Natural gas	1,961		1,607		1,196
Operation and maintenance	700		667		637
Depreciation and amortization	201		185		173
Taxes other than income taxes	152		141		110
Total expenses	3,014		2,600		2,116
Operating Income	$	287	$	263	$	226
Throughput (in Bcf):
Residential	197		182		140
Commercial and industrial	270		265		243
Total Throughput	467		447		383
Number of customers at end of period:
Residential	3,124,542		3,090,966		3,058,695
Commercial and industrial	249,272		247,100		246,413
Total	3,373,814		3,338,066		3,305,108

2014 Compared to 2013.  Our Natural Gas Distribution business segment reported operating income of $287 million for 2014 compared to $263 million for 2013. Operating income increased $24 million primarily due to increased usage as a result of colder weather compared to the prior year, partially mitigated by weather hedges and weather normalization adjustments ($16 million), rate increases ($37 million) and increased economic activity across our footprint including the addition of approximately 36,000 customers ($10 million). These increases were partially offset by increased contractor expense, including pipeline integrity work ($10 million), higher depreciation and amortization ($16 million), an increase in taxes ($7 million), and increased other operating expenses ($6 million). Increased expense related to energy efficiency programs ($8 million) and increased expense related to higher gross receipt taxes ($4 million) were offset by a corresponding increase in the related revenues.

2013 Compared to 2012.  Our Natural Gas Distribution business segment reported operating income of $263 million for 2013 compared to $226 million for 2012. Operating income increased $37 million primarily due to increased usage as a result of colder weather compared to the prior year, partially mitigated by weather hedges and weather normalization adjustments ($29 million), rate increases ($29 million), and increased economic activity across our footprint including the addition of approximately 33,000 residential customers ($7 million). These increases were partially offset by increased operating expenses ($6 million), higher bad debt expense ($5 million), higher depreciation and amortization expense ($12 million) and an increase in taxes ($5 million), primarily attributable to property taxes. Increased expense related to energy efficiency programs ($17 million) and increased expense related to higher gross receipt taxes ($26 million) were offset by a corresponding increase in the related revenues.

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Energy Services

The following table provides summary data of our Energy Services business segment for 2014, 2013 and 2012 (in millions, except throughput and customer data):

	Year Ended December 31,
	2014		2013		2012
Revenues	$	3,179	$	2,401	$	1,784
Expenses:
Natural gas	3,073		2,336		1,730
Operation and maintenance	47		46		45
Depreciation and amortization	5		5		6
Taxes other than income taxes	2		1		1
Goodwill impairment	—		—		252
Total expenses	3,127		2,388		2,034
Operating Income (Loss)	$	52	$	13	$	(250	)
Throughput (in Bcf)	631		600		562
Number of customers at end of period (1)	17,964		17,510		16,330

___________________

(1) These numbers do not include approximately 9,700, 8,800 and 12,700 natural gas customers as of December 31, 2014, 2013 and 2012, respectively, that are under residential and small commercial choice programs invoiced by their host utility.

2014 Compared to 2013. Our Energy Services business segment reported operating income of $52 million compared to $13 million for 2013. The increase in operating income of $39 million was primarily due to a $31 million increase from mark-to-market accounting for derivatives associated with certain natural gas purchases and sales used to lock in economic margins. A $29 million mark-to-market gain was incurred in 2014 compared to a charge of $2 million in 2013. The remaining increase in operating income was primarily due to improved margins resulting from weather-related optimization of existing gas transportation assets, reduced fixed costs and increased throughput and price volatility.

2013 Compared to 2012. Our Energy Services business segment reported operating income of $13 million compared to $2 million for 2012, excluding the goodwill impairment charge discussed below. The increase in operating income of $11 million was primarily due to a $14 million increase from mark-to-market accounting for derivatives associated with certain natural gas purchases and sales used to lock in economic margins. A $2 million mark-to-market charge was incurred in 2013 compared to a charge of $16 million for 2012.  Energy Services grew both volume and customers in 2013 offsetting the impact of the lower unit margin environment.

Goodwill Impairment

A non-cash goodwill impairment charge of $252 million for our Energy Services business segment was recorded in 2012. The adverse wholesale market conditions facing our energy services business, specifically the prospects for continued low geographic and seasonal price differentials for natural gas, led to a reduction in our estimate of the fair value of goodwill associated with this reporting unit.

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Interstate Pipelines

Substantially all of our Interstate Pipelines business segment was contributed to Enable on May 1, 2013. As a result, this segment did not report operating results for 2014. The following table provides summary data of our Interstate Pipelines business segment for 2013 and 2012 (in millions, except throughput data):

	Year Ended December 31,
	2013 (1)		2012
Revenues	$	186	$	502
Expenses:
Natural gas	35		57
Operation and maintenance	51		153
Depreciation and amortization	20		56
Taxes other than income taxes	8		29
Total expenses	114		295
Operating Income	$	72	$	207
Equity in earnings of unconsolidated affiliates	$	7	$	26
Transportation throughput (in Bcf)	482		1,367

_____________

(1)     Represents January 2013 through April 2013 results only.

2013 Compared to 2012.  Our Interstate Pipeline business segment reported operating income of $72 million for 2013 compared to $207 million for 2012. Substantially all of this segment was contributed to Enable on May 1, 2013. As a result, 2013 is not comparable to the prior year. Effective May 1, 2013, our equity method investment and related equity income in Enable are included in our Midstream Investments segment.

Equity Earnings. This business segment recorded equity income of $7 million and $26 million for the years ended December 31, 2013 and 2012, respectively, from its interest in Southeast Supply Header, LLC (SESH), a jointly-owned pipeline. The decrease in equity income was primarily due to the contribution of a 24.95% interest in SESH to Enable on May 1, 2013. Beginning May 1, 2013, equity earnings related to our interest in SESH and Enable are reported as components of equity income in our Midstream Investments segment.

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Field Services

Substantially all of our Field Services business segment was contributed to Enable on May 1, 2013. As a result, this segment did not report operating results for 2014.The following table provides summary data of our Field Services business segment for 2013 and 2012 (in millions, except throughput data):

	Year Ended December 31,
	2013 (1)		2012
Revenues	$	196	$	506
Expenses:
Natural gas	54		122
Operation and maintenance	45		115
Depreciation and amortization	20		50
Taxes other than income taxes	4		5
Total expenses	123		292
Operating Income	$	73	$	214
Equity in earnings of unconsolidated affiliates	$	—	$	5
Gathering throughput (in Bcf)	252		896

_____________

(1)     Represents January 2013 through April 2013 results only.

2013 Compared to 2012.  Our Field Services business segment reported operating income of $73 million for 2013 compared to $214 million for 2012. Substantially all of this segment was contributed to Enable on May 1, 2013. As a result, 2013 is not comparable to the prior year. Effective May 1, 2013, our equity method investment and related equity income in Enable are included in our Midstream Investments segment.

Equity Earnings. This business segment recorded equity income of $-0- and $5 million for the years ended December 31, 2013 and 2012, respectively, from its interest in Waskom. These amounts are included in Equity in earnings of unconsolidated affiliates under the Other Income (Expense) caption in the Statements of Consolidated Income. From August 1, 2012 through April 30, 2013, financial results for Waskom are included in operating income. On May 1, 2013, our 100% investment in Waskom was contributed to Enable.

Midstream Investments

The following table summarizes the equity earnings of our Midstream Investments business segment for 2014 and 2013 (in millions):

	Year Ended December 31,
	2014 (1)		2013 (2)
Enable	$	303	$	173
SESH	5		8
Total	$	308	$	181

_____________

(1) On April 16, 2014, Enable completed its initial public offering and, as a result, CenterPoint Energy’s limited partner interest in Enable was reduced from approximately 58.3% to approximately 54.7%. On May 30, 2014, CenterPoint Energy contributed to Enable its 24.95% interest in SESH, which increased CenterPoint Energy’s limited partner interest in Enable from approximately 54.7% to approximately 55.4% and reduced its interest in SESH to 0.1%.

(2) Represents our 58.3% limited partner interest in Enable and our 25.05% interest in SESH for the eight months ended December 31, 2013.

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Other Operations

The following table provides summary data for our Other Operations business segment for 2014, 2013 and 2012 (in millions):

	Year Ended December 31,
	2014		2013			2012
Revenues	$	15	$	14		$	11
Expenses	14		32			9
Operating Income (Loss)	$	1	$	(18	)	$	2

2014 Compared to 2013. Our Other Operations business segment reported operating income of $1 million for 2014 compared to an operating loss of $18 million for 2013. The increase in operating income of $19 million is primarily related to the costs associated with the formation of Enable in 2013 ($13 million) and decreased benefits costs ($8 million), which were partially offset by higher property taxes ($2 million).

2013 Compared to 2012. Our Other Operations business segment reported an operating loss of $18 million for 2013 compared to operating income of $2 million for 2012. The decrease in operating income of $20 million is primarily related to the costs associated with the formation of Enable ($13 million), higher depreciation expense ($3 million) and higher property taxes ($2 million).

LIQUIDITY AND CAPITAL RESOURCES

Historical Cash Flows

The net cash provided by (used in) operating, investing and financing activities for 2014, 2013 and 2012 is as follows (in millions):

	Year Ended December 31,
	2014			2013			2012
Cash provided by (used in):
Operating activities	$	1,397		$	1,613		$	1,860
Investing activities	(1,384		)	(1,300		)	(1,603		)
Financing activities	77			(751		)	169

Cash Provided by Operating Activities

Net cash provided by operating activities decreased $216 million in 2014 compared to 2013 primarily due to increased net tax payments ($157 million), decreased cash provided by fuel cost recovery ($149 million), increased net margin deposits ($95 million), decreased cash related to gas storage inventory ($69 million), decreased cash from non-trading derivatives ($38 million) and decreased cash provided by net regulatory assets and liabilities ($39 million), which was partially offset by increased distributions from equity method investments ($176 million) and increased cash provided by net accounts receivable/payable ($140 million).

Net cash provided by operating activities decreased $247 million in 2013 compared to 2012 primarily due to decreased operating income ($280 million), excluding the non-cash goodwill impairment charge of $252 million, decreased cash provided by net accounts receivable/payable ($108 million), cash related to gas storage inventory ($43 million), decreased net margin deposits ($37 million), decreased cash from non-trading derivatives ($16 million), increased pension contributions ($9 million) and decreased cash provided by net regulatory assets and liabilities ($5 million), which was partially offset by increased cash provided by fuel cost recovery ($160 million), increased distributions from equity method investments ($91 million) and decreased net tax payments ($11 million).

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Cash Used in Investing Activities

Net cash used in investing activities increased $84 million in 2014 compared to 2013 primarily due to increased capital expenditures ($86 million), increased restricted cash ($24 million) and decreased proceeds from sale of marketable securities ($9 million), which were partially offset by decreased cash contributed to Enable ($38 million).

Net cash used in investing activities decreased $303 million in 2013 compared to 2012 due to decreased cash paid for acquisitions ($360 million) and decreased restricted cash ($30 million) and increased proceeds from sale of marketable securities ($9 million), which were partially offset by increased capital expenditures ($74 million) and cash contributed to Enable ($38 million).

Cash Provided by (Used in) Financing Activities

Net cash provided by financing activities increased $828 million in 2014 compared to 2013 primarily due to decreased payments of long-term debt ($1,036 million) and increased proceeds from commercial paper ($296 million), which were partially offset by decreased proceeds from long-term debt ($450 million) and increased payments of common stock dividends ($53 million).

Net cash used in financing activities increased $920 million in 2013 compared to 2012 primarily due to decreased proceeds from long-term debt ($1,445 million) and increased payments of common stock dividends ($9 million), which were partially offset by increased proceeds from commercial paper ($403 million), decreased cash paid for debt retirement ($62 million), increased short-term borrowings ($29 million), decreased payments of long-term debt ($17 million) and decreased debt issuance costs ($13 million).

Future Sources and Uses of Cash

Our liquidity and capital requirements are affected primarily by our results of operations, capital expenditures, debt service requirements, tax payments, working capital needs and various regulatory actions. Our principal anticipated cash requirements for 2015 include the following:

• capital expenditures of approximately $1.5 billion;

• scheduled principal payments on transition and system restoration bonds of $372 million;

• maturing senior notes and pollution control bonds aggregating $269 million;

• contributions aggregating approximately $66 million to qualified and non-qualified pension plans; and

• dividend payments on CenterPoint Energy common stock and interest payments on debt.

We expect that anticipated 2015 cash needs will be met with borrowings under our credit facilities, proceeds from commercial paper, proceeds from the issuance of general mortgage bonds and senior unsecured notes, anticipated cash flows from operations, a tax refund relating to 2014 bonus depreciation and distributions from Enable. Discretionary financing or refinancing may result in the issuance of equity or debt securities in the capital markets or the arrangement of additional credit facilities. Issuances of equity or debt in the capital markets and additional credit facilities may not, however, be available to us on acceptable terms.

The following table sets forth our capital expenditures for 2014 and estimates of our capital expenditures for currently identified or planned projects for 2015 through 2019 (in millions): 

	2014		2015		2016		2017		2018		2019
Electric Transmission & Distribution	$	818	$	913	$	874	$	879	$	881	$	831
Natural Gas Distribution	525		559		544		545		550		546
Energy Services	3		10		32		9		9		19
Other Operations	56		40		41		44		54		53
Total	$	1,402	$	1,522	$	1,491	$	1,477	$	1,494	$	1,449

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Our capital expenditures are expected to be used for investment in infrastructure for our electric transmission and distribution operations and our natural gas distribution operations. These capital expenditures are anticipated to maintain reliability and safety as well as expand our systems through value-added projects.

The following table sets forth estimates of our contractual obligations, including payments due by period (in millions):

Contractual Obligations	Total		2015		2016-2017		2018-2019		2020 and thereafter
Transition and system restoration bond debt	$	3,046	$	372	$	802	$	893	$	979
Other long-term debt (1)	6,352		269		825		1,181		4,077
Interest payments — transition and system restoration bond debt (2)	475		108		176		111		80
Interest payments — other long-term debt (2)	3,947		303		549		425		2,670
Short-term borrowings	53		53		—		—		—
Capital leases	5		2		2		1		—
Operating leases (3)	23		5		7		4		7
Benefit obligations (4)	—		—		—		—		—
Non-trading derivative liabilities	20		19		1		—		—
Other commodity commitments (5)	2,728		696		1,156		762		114
Total contractual cash obligations (6)	$	16,649	$	1,827	$	3,518	$	3,377	$	7,927

___________________

(1) 2.0% Zero-Premium Exchangeable Subordinated Notes due 2029 (ZENS) obligations are included in the 2020 and thereafter column at their contingent principal amount as of December 31, 2014 of $751 million.  These obligations are exchangeable for cash at any time at the option of the holders for 95% of the current value of the reference shares attributable to each ZENS ($930 million at December 31, 2014), as discussed in Note 10 to our consolidated financial statements.  

(2) We calculated estimated interest payments for long-term debt as follows: for fixed-rate debt and term debt, we calculated interest based on the applicable rates and payment dates; for variable-rate debt and/or non-term debt, we used interest rates in place as of December 31, 2014. We typically expect to settle such interest payments with cash flows from operations and short-term borrowings.

(3) For a discussion of operating leases, please read Note 14(c) to our consolidated financial statements.

(4) In 2015, we expect to make contributions to our qualified pension plan aggregating approximately $35 million. We expect to contribute approximately $31 million and $17 million, respectively, to our non-qualified pension and postretirement benefits plans in 2015.

(5) For a discussion of other commodity commitments, please read Note 14(a) to our consolidated financial statements.

(6) This table does not include estimated future payments for expected future asset retirement obligations. These payments are primarily estimated to be incurred after 2020. We record a separate liability for the fair value of these asset retirement obligations which totaled $176 million as of December 31, 2014. See Note 3(c), Asset Retirement Obligation in our consolidated financial statements.

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Off-Balance Sheet Arrangements

Prior to the distribution of our ownership in Reliant Resources, Inc. (RRI) to our shareholders, CERC had guaranteed certain contractual obligations of what became RRI’s trading subsidiary.  When the companies separated, RRI agreed to secure CERC against obligations under the guarantees RRI had been unable to extinguish by the time of separation.  Pursuant to such agreement, as amended in December 2007, RRI (now GenOn Energy, Inc. (GenOn)) agreed to provide to CERC cash or letters of credit as security against CERC’s obligations under its remaining guarantees for demand charges under certain gas transportation agreements if and to the extent changes in market conditions expose CERC to a risk of loss on those guarantees based on an annual calculation, with any required collateral to be posted each December.  The undiscounted maximum potential payout of the demand charges under these transportation contracts, which will be in effect until 2018, was approximately $42 million as of December 31, 2014.  Based on market conditions in the fourth quarter of 2014 at the time the most recent annual calculation was made under the agreement, GenOn was not obligated to post any security. If GenOn should fail to perform the contractual obligations, CERC could have to honor its guarantee and, in such event, any collateral provided as security may be insufficient to satisfy CERC’s obligations.

CenterPoint Energy has provided guarantees (CenterPoint Midstream Guarantees) with respect to the performance of certain obligations of Enable under long-term gas gathering and treating agreements with an indirect wholly owned subsidiary of Encana Corporation and an indirect wholly owned subsidiary of Royal Dutch Shell plc. As of December 31, 2014, CenterPoint Energy, Inc. had guaranteed Enable’s obligations up to an aggregate amount of $100 million under these agreements. Under the terms of the omnibus agreement entered into in connection with the closing of the formation of Enable, Enable and CenterPoint Energy have agreed to use commercially reasonable efforts and cooperate with each other to terminate the CenterPoint Midstream Guarantees and to release CenterPoint Energy from such guarantees by causing Enable or one of its subsidiaries to enter into substitute guarantees or to assume the CenterPoint Midstream Guarantees as applicable.

CERC Corp. has also provided a guarantee of collection of $1.1 billion of Enable’s senior notes due 2019 and 2024. This guarantee is subordinated to all senior debt of CERC Corp. and is subject to automatic release on May 1, 2016.

The fair value of these guarantees is not material. Other than the guarantees described above and operating leases, we have no off-balance sheet arrangements.

Regulatory Matters

CenterPoint Houston

2008 Energy Efficiency Cost Recovery Factor (EECRF) Appeal. In October 2009, the Public Utility Commission of Texas (Texas Utility Commission) issued an order disallowing recovery of a performance bonus of $2 million on approximately $10 million in 2008 energy efficiency costs expended pursuant to the terms of a settlement agreement in a prior rate case. CenterPoint Houston appealed the denial of the full 2008 performance bonus. CenterPoint Houston had also appealed similar orders by the Texas Utility Commission providing for the partial disallowance of performance bonuses totaling approximately $5.5 million relating to CenterPoint Houston’s 2009, 2010 and 2011 (only through August 2011) energy efficiency programs. These subsequent cases were abated pending the final outcome of the 2008 bonus appeal. In August 2013, the court of appeals reversed the Texas Utility Commission’s decision disallowing such bonuses and in January 2014, the Texas Supreme Court declined to hear the Texas Utility Commission’s appeal. As a result of the Texas Supreme Court’s decision, in April 2014, four separate proceedings were initiated, which were later consolidated into one proceeding, at the Texas Utility Commission to determine the amount CenterPoint Houston is to recover. In May 2014, parties to the proceeding entered into a unanimous stipulation agreeing to the amount to be recovered but not to the customer class recovery allocation. The parties agreed that CenterPoint Houston is to recover $7.5 million in performance bonus, $0.2 million in rate case expenses associated with appeals of the proceedings and at least $2.5 million in carrying costs, with final determination of carrying costs based on the timing of the decision regarding customer class recovery allocation. In August 2014, the Texas Utility Commission entered a final order approving $10.4 million with no change regarding customer class recovery allocation. The rates became effective October 15, 2014. Starting September 2011, CenterPoint Houston’s energy efficiency programs are no longer funded pursuant to the terms of the prior settlement, and performance bonus calculations subsequent to that date are not affected by the court’s decision.

2014 EECRF. On May 30, 2014, CenterPoint Houston filed an application for approval of an adjustment to its EECRF for 2015. CenterPoint Houston’s requested recovery is $51.4 million composed of approximately: (1) $39.1 million in estimated 2015 program costs; (2) a performance bonus for 2013 achievements of $16.2 million; (3) $0.9 million for 2015 evaluation, measurement and verification costs; (4) a credit of $5.1 million for the over-recovery of 2013 program costs; and (5) $0.2 million in rate case expenses from the 2013 EECRF proceeding. In September 2014, the parties signed a partial stipulation

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agreeing that CenterPoint Houston shall be allowed to recover the net of (1) $39.1 million in estimated 2015 program costs; (2) a performance bonus for 2013 achievements of between $15.8 million and $16.2 million, depending on the outcome of the one remaining contested issue relating to a bonus calculation; (3) $0.9 million for 2015 evaluation, measurement and verification costs; (4) a credit of $5.1 million for the over-recovery of 2013 program costs; (5) $0.2 million in rate case expenses from the 2013 EECRF proceeding; and (6) an adjustment of $57,000 to exclude certain administrative costs.  In November 2014, the Texas Utility Commission approved the partial settlement and decided the remaining contested issue relating to the bonus calculation in CenterPoint Energy’s favor. The effective date of the rate adjustment will be March 1, 2015.

Brazos Valley Connection Project. In July 2013, CenterPoint Houston and other transmission service providers submitted analyses and transmission proposals to the Electric Reliability Council of Texas (ERCOT) for an additional transmission path into the Houston region.  In April 2014, ERCOT’s Board of Directors voted to endorse a Houston region transmission project and deemed it critical for reliability.  The project will consist of (i) construction of a new double-circuit 345 kilovolt (kV) line spanning 130 miles, (ii) upgrades to three substations to accommodate new connections and additional capacity, and (iii) improvements to approximately 11 miles of an existing 345 kV TH Wharton-Addicks transmission line to increase its rating.  Also in April 2014, ERCOT staff determined that CenterPoint Houston would be the designated transmission service provider for the portion of the project between our Zenith substation and the Gibbons Creek substation owned by the Texas Municipal Power Agency, consisting of approximately 60 miles of 345 kV transmission line, upgrades to the Limestone and Zenith substations and upgrades to 11 miles of the 345 kV TH Wharton-Addicks transmission line (this portion of the Houston region transmission project is referred to by CenterPoint Houston as the Brazos Valley Connection).  Other transmission service providers were designated by ERCOT for the portion of the project from Gibbons Creek Substation to the Limestone Substation as well as the upgrades to the Gibbons Creek Substation.  As the owner of the originating and terminating substations of the entire project, CenterPoint Houston appealed that determination to the Texas Utility Commission in May 2014 and sought the right to construct, own, and maintain the entire project, except for necessary upgrades to the Gibbons Creek Substation.  On October 17, 2014, the Texas Utility Commission filed an order that denied CenterPoint Houston’s appeal and upheld the April 2014 ERCOT decision to split the project between CenterPoint Houston and other transmission service providers.  ERCOT estimates that the capital cost of the entire Houston region transmission project will be approximately $600 million, and CenterPoint Houston estimates that the capital costs for the Brazos Valley Connection will be approximately $300 million.  CenterPoint Houston anticipates that the Brazos Valley Connection project will be completed by mid-2018. 

In May 2014, several electric generators appealed the ERCOT Board of Directors’ April 2014 approval of the Houston region transmission project and the determination that the project was critical for reliability in the Houston region to the Texas Utility Commission.  A hearing on the May 2014 appeal by the electric generators was held in October 2014 and in December 2014, the Texas Utility Commission denied the generators’ appeal. A motion for rehearing was filed by the electric generators on January 5, 2015, replies to the motion for rehearing were filed on January 15, 2015, and on January 21, 2015, the Texas Utility Commission voted not to consider the motion for rehearing. CenterPoint Houston must obtain final approval of the project and the route for the project from the Texas Utility Commission. CenterPoint Houston anticipates filing its application for approval of the project in the spring of 2015. Once filed, the Texas Utility Commission will have 180 days to rule on the application.

Transmission Cost of Service (TCOS). On March 26, 2014, CenterPoint Houston filed an application with the Texas Utility Commission for an interim update of its TCOS seeking an increase in annual revenue of $13.6 million based on an increase in total rate base of $184.5 million. CenterPoint Houston received approval from the Texas Utility Commission during the second quarter of 2014, and rates became effective May 12, 2014. A second TCOS filing, as amended, was made on November 21, 2014 seeking an increase in annual revenue of $23.5 million based on an increase in total rate base of $113.2 million.  The case is still pending before the Texas Utility Commission.

Agreement with City of Houston. On June 13, 2014, CenterPoint Houston entered into an agreement with the City of Houston, Texas providing that neither CenterPoint Houston nor the city will initiate a base rate case for CenterPoint Houston earlier than December 31, 2016, subject to a $20 million force majeure provision. During that period, CenterPoint Houston has the right to adjust its rates through (1) the schedules and riders in its tariff approved by the Texas Utility Commission; (2) adjustments to its distribution rates using the distribution cost recovery factor rule adopted by the Texas Utility Commission; and (3) adjustments to its transmission rates under Texas Utility Commission rules. CenterPoint Houston also has the right to propose rates for new services. This agreement is not binding on any other city within CenterPoint Houston’s service territory or the Texas Utility Commission.

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CERC

Cost of Service Adjustment (COSA) Rate Adjustments. In March 2008, NGD filed a request to change its rates with the Railroad Commission of Texas (Railroad Commission) and the 47 cities in its Texas Coast service territory, including a request for an annual cost of service adjustment mechanism, or COSA, that adjusts rates annually for changes in invested capital as well as certain operating expenses. In 2008, the Railroad Commission approved the implementation of rates increasing annual revenues from the Texas Coast service territory by approximately $3.5 million and a COSA mechanism. The approved rates were contested by a coalition of nine cities and certain state agencies in an appeal to the Travis County District Court. In 2010, the district court ruled that the Railroad Commission lacked authority to impose the approved COSA mechanism both in those nine cities and in those areas in which the Railroad Commission has original jurisdiction, and also found that the commission’s order lacked findings to support the inclusion of certain affiliate expenses in rates. The decision by the District Court placed at risk certain revenues collected pursuant to COSA mechanisms. The Railroad Commission and NGD appealed the court’s ruling on the COSA mechanism. In October 2011, the court of appeals reversed the district court’s ruling on the COSA mechanism. The cities and state agencies appealed that decision to the Texas Supreme Court. In January 2014, the Texas Supreme Court confirmed that the Railroad Commission had authority to approve the COSA rate adjustments utilized by NGD and remanded the case back to state district court. In April 2014, the district court remanded the case to the Railroad Commission to correct deficiencies in the commission’s 2008 order related to certain affiliate expenses but affirming the commission’s order in all other respects. The matter is currently pending at the Railroad Commission.

Minnesota Rate Proceeding.  On August 2, 2013, NGD filed a general rate case in Minnesota to increase base rates by $44.3 million (including the movement of a $15 million energy efficiency rider into base rates), based on a rate base of $700 million and return on equity (ROE) of 10.3%.  In compliance with state law, NGD implemented interim rates reflecting $42.9 million dollars of the requested increase for gas used on and after October 1, 2013. This rate filing is intended to recover significant capital expenditures NGD is making in Minnesota and included moving $15 million of energy efficiency expenditures to base rates. Evidentiary hearings were held before an administrative law judge (ALJ) in January 2014. On April 9, 2014 the ALJ issued its findings of fact and recommendations, which support a $31.6 million revenue increase based on a 9.59% ROE.  In May 2014, the Minnesota Public Utility Commission (MPUC) entered an order approving a rate increase of $33 million based on a 9.59% ROE and a 52.6% equity ratio. The MPUC also authorized the implementation of a three-year pilot revenue decoupling mechanism with an effective date of July 1, 2015. NGD implemented final rates in the fourth quarter of 2014. Since the adopted revenue increase is less than the interim revenue increase, a refund to customers, which had already been accrued, was completed in December 2014.

Houston, South Texas and Beaumont/East Texas Gas Reliability Infrastructure Programs (GRIP). NGD’s Houston, South Texas and Beaumont/East Texas Divisions each submitted annual GRIP filings on March 31, 2014. For the Houston Division, CERC has asked that its GRIP filing to recover costs related to $66.6 million in incremental capital expenditures that were incurred in 2013 be operationally suspended for one year so as to ensure earnings more consistent with those currently approved. For the South Texas Division, the filing is to recover costs related to $15.9 million in incremental capital expenditures that were incurred in 2013. The increase in revenue requirements for this filing period is $1.8 million annually based on an authorized rate of return of 8.75%. Rates were implemented for certain customers in May 2014. In those areas in which the jurisdictional deadline was extended by regulatory action, the rates were implemented in July 2014 after final approval by the Railroad Commission of Texas (Railroad Commission). For the Beaumont/East Texas Division, the first GRIP filing is to recover costs related to $31.4 million in incremental capital expenditures that were incurred in 2012 and 2013. The increase in revenue requirements for this filing period is $3.0 million annually based on an authorized rate of return of 8.51%. Rates were implemented for certain customers in May 2014. In those areas in which the jurisdictional deadline was extended by regulatory action, the rates were implemented in July 2014 after final approval by the Railroad Commission.

Oklahoma Performance Based Rate Change (PBRC). In March 2014, NGD made a PBRC filing for the 2013 calendar year proposing to increase revenues by $1.5 million. On July 3, 2014, the Oklahoma Corporation Commission approved a joint stipulation by NGD and the intervening parties resulting in a rate increase of $0.3 million, which included an adjustment to amortize over five years $1.5 million of expense incurred within the 2013 test year. New rates went into effect on July 3, 2014.

Arkansas Government Mandated Expenditure Surcharge Rider (GMESR).  On May 1, 2014, NGD made a filing with the Arkansas Public Service Commission (APSC) requesting to increase revenue under its interim GMESR by an additional $1.8 million.  Interim rates were implemented upon filing and are subject to refund pending a final order from the APSC. 

Mississippi Rate Regulation Adjustment (RRA). On May 1, 2014, NGD filed for a $4.1 million RRA with an adjusted ROE of 9.27%.  On August 5, 2014, the Mississippi Public Service Commission approved a joint stipulation for a revenue adjustment

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of $2.8 million, which included an adjustment to amortize over three years $0.5 million of expense incurred with the 2013 test year. New rates went into effect in September 2014. 

Louisiana Rate Stabilization Plan (RSP). NGD made its 2014 Louisiana RSP filings with the Louisiana Public Service Commission on October 1, 2014. The North Louisiana Rider RSP filing shows a revenue deficiency of $4.0 million, compared to the authorized ROE of 10.25%.  The South Louisiana Rider RSP filing shows a revenue deficiency of $2.3 million, compared to the authorized ROE of 10.5%. NGD began billing the revised rates in December 2014 subject to refund. On November 19, 2014, NGD sought permission to amend the prior year’s South Louisiana RSP filing to use a more representative capital structure and to adjust the filing’s equity banding mechanism. On December 2, 2014, NGD sought permission for similar amendments to the prior year’s North Louisiana RSP filings. The Louisiana Public Service Commission has yet to take action on either request.

Minneapolis Franchise. In 2014, NGD provided natural gas distribution services to approximately 124,000 customers in Minneapolis, Minnesota under a franchise that was due to expire at the end of the year. In October 2014, the Minneapolis City Council unanimously approved a ten-year franchise agreement with NGD, effective January 1, 2015. The agreement is renewable for two additional five-year terms upon mutual consent of the parties. Also in October 2014, the Minneapolis City Council unanimously approved a newly formed Clean Energy Partnership (CEP) between the city, NGD and Xcel Energy.   The CEP board includes the mayor, two council members, the city’s coordinator and two senior officials from each of the utilities.  The board’s work plan will include new ideas to support developing renewable energy, increasing residential and business use of energy-efficiency programs and reducing the city’s energy use.  The new franchise agreement with NGD can be terminated by the city after five years if the city finds, through a city council vote, that NGD is not acting in good faith to support the city’s clean energy goals.

Other Matters

Credit Facilities

As of February 17, 2015, we had the following facilities (in millions):

Execution Date	Company	Size of Facility		Amount Utilized at February 17, 2015 (1)			Termination Date
September 9, 2011	CenterPoint Energy	$	1,200	$	170	(2)	September 9, 2019
September 9, 2011	CenterPoint Houston	300		4		(3)	September 9, 2019
September 9, 2011	CERC Corp.	600		248		(4)	September 9, 2019

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(1) Based on the consolidated debt to capitalization covenant in our revolving credit facility and the revolving credit facility of each of CenterPoint Houston and CERC Corp., we would have been permitted to utilize the full capacity of such revolving credit facilities, which aggregated $2.1 billion at December 31, 2014.

(2) Represents outstanding letters of credit of $6 million and outstanding commercial paper of $164 million.

(3) Represents outstanding letters of credit.

(4) Represents outstanding commercial paper.

Our $1.2 billion revolving credit facility can be drawn at the London Interbank Offered Rate (LIBOR) plus 1.25% based on our current credit ratings. The revolving credit facility contains a financial covenant which limits our consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of our consolidated capitalization. The financial covenant limit will temporarily increase from 65% to 70% if CenterPoint Houston experiences damage from a natural disaster in its service territory and we certify to the administrative agent that CenterPoint Houston has incurred system restoration costs reasonably likely to exceed $100 million in a consecutive twelve-month period, all or part of which CenterPoint Houston intends to seek to recover through securitization financing. Such temporary increase in the financial covenant would be in effect from the date we deliver our certification until the earliest to occur of (i) the completion of the securitization financing, (ii) the first anniversary of our certification or (iii) the revocation of such certification.

CenterPoint Houston’s $300 million revolving credit facility can be drawn at LIBOR plus 1.125% based on CenterPoint Houston’s current credit ratings. The revolving credit facility contains a financial covenant which limits CenterPoint Houston’s

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consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of CenterPoint Houston’s consolidated capitalization.

CERC Corp.’s $600 million revolving credit facility can be drawn at LIBOR plus 1.5% based on CERC Corp.’s current credit ratings. The revolving credit facility contains a financial covenant which limits CERC’s consolidated debt to an amount not to exceed 65% of CERC’s consolidated capitalization.

Borrowings under each of the three revolving credit facilities are subject to customary terms and conditions. However, there is no requirement that the borrower make representations prior to borrowings as to the absence of material adverse changes or litigation that could be expected to have a material adverse effect. Borrowings under each of the revolving credit facilities are subject to acceleration upon the occurrence of events of default that we consider customary. The revolving credit facilities also provide for customary fees, including commitment fees, administrative agent fees, fees in respect of letters of credit and other fees. In each of the three revolving credit facilities, the spread to LIBOR and the commitment fees fluctuate based on the borrower’s credit rating. The borrowers are currently in compliance with the various business and financial covenants in the three revolving credit facilities.

On September 9, 2014, our revolving credit facility and the revolving credit facilities of CenterPoint Houston and CERC Corp. were amended to, among other things, extend the maturity date of the commitments under the credit facilities from September 9, 2018 to September 9, 2019. The amendments also reduced the swingline and letter of credit sub-facilities under each credit facility, with total commitments under each credit facility remaining unchanged.

Our $1.2 billion revolving credit facility backstops our $1.0 billion commercial paper program. As of December 31, 2014, we had $191 million of outstanding commercial paper. CERC Corp.’s $600 million revolving credit facility backstops its $600 million commercial paper program. As of December 31, 2014, CERC Corp. had $341 million of outstanding commercial paper.

Securities Registered with the SEC

CenterPoint Energy, CenterPoint Houston and CERC Corp. have filed a joint shelf registration statement with the SEC registering indeterminate principal amounts of CenterPoint Houston’s general mortgage bonds, CERC Corp.’s senior debt securities and CenterPoint Energy’s senior debt securities and junior subordinated debt securities and an indeterminate number of CenterPoint Energy’s shares of common stock, shares of preferred stock, as well as stock purchase contracts and equity units.

Temporary Investments

As of February 17, 2015, we had no temporary investments.

Money Pool

We have a money pool through which the holding company and participating subsidiaries can borrow or invest on a short-term basis. Funding needs are aggregated and external borrowing or investing is based on the net cash position. The net funding requirements of the money pool are expected to be met with borrowings under our revolving credit facility or the sale of our commercial paper.

Impact on Liquidity of a Downgrade in Credit Ratings

The interest on borrowings under our credit facilities is based on our credit rating. As of February 17, 2015, Moody’s Investors Service, Inc. (Moody’s), Standard & Poor’s Ratings Services (S&P), a division of The McGraw-Hill Companies, and Fitch, Inc. (Fitch) had assigned the following credit ratings to senior debt of CenterPoint Energy and certain subsidiaries:

	Moody’s		S&P		Fitch
Company/Instrument	Rating	Outlook (1)	Rating	Outlook(2)	Rating	Outlook(3)
CenterPoint Energy Senior Unsecured Debt	Baa1	Stable	BBB+	Stable	BBB	Stable
CenterPoint Houston Senior Secured Debt	A1	Stable	A	Stable	A	Stable
CERC Corp. Senior Unsecured Debt	Baa2	Stable	A-	Stable	BBB	Stable

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(1) A Moody’s rating outlook is an opinion regarding the likely direction of an issuer’s rating over the medium term.

(2) An S&P rating outlook assesses the potential direction of a long-term credit rating over the intermediate to longer term.

(3) A Fitch rating outlook indicates the direction a rating is likely to move over a one- to two-year period.

We cannot assure you that the ratings set forth above will remain in effect for any given period of time or that one or more of these ratings will not be lowered or withdrawn entirely by a rating agency. We note that these credit ratings are included for informational purposes and are not recommendations to buy, sell or hold our securities and may be revised or withdrawn at any time by the rating agency. Each rating should be evaluated independently of any other rating. Any future reduction or withdrawal of one or more of our credit ratings could have a material adverse impact on our ability to obtain short- and long-term financing, the cost of such financings and the execution of our commercial strategies.

A decline in credit ratings could increase borrowing costs under our $1.2 billion revolving credit facility, CenterPoint Houston’s $300 million revolving credit facility and CERC Corp.’s $600 million revolving credit facility. If our credit ratings or those of CenterPoint Houston or CERC Corp. had been downgraded one notch by each of the three principal credit rating agencies from the ratings that existed at December 31, 2014, the impact on the borrowing costs under the three revolving credit facilities would have been immaterial. A decline in credit ratings would also increase the interest rate on long-term debt to be issued in the capital markets and could negatively impact our ability to complete capital market transactions and to access the commercial paper market. Additionally, a decline in credit ratings could increase cash collateral requirements and reduce earnings of our Natural Gas Distribution and Energy Services Business Segments.

CERC Corp. and its subsidiaries purchase natural gas from one of their suppliers under supply agreements that contain an aggregate credit threshold of $140 million based on CERC Corp.’s S&P senior unsecured long-term debt rating of A-. Under these agreements, CERC may need to provide collateral if the aggregate threshold is exceeded or if the S&P senior unsecured long-term debt rating is downgraded below BBB+.

CenterPoint Energy Services, Inc. (CES), a wholly owned subsidiary of CERC Corp. operating in our  Energy Services business segment, provides natural gas sales and services primarily to commercial and industrial customers and electric and gas utilities throughout the central and eastern United States. In order to economically hedge its exposure to natural gas prices, CES uses derivatives with provisions standard for the industry, including those pertaining to credit thresholds. Typically, the credit threshold negotiated with each counterparty defines the amount of unsecured credit that such counterparty will extend to CES. To the extent that the credit exposure that a counterparty has to CES at a particular time does not exceed that credit threshold, CES is not obligated to provide collateral. Mark-to-market exposure in excess of the credit threshold is routinely collateralized by CES. As of December 31, 2014, the amount posted as collateral aggregated approximately $83 million. Should the credit ratings of CERC Corp. (as the credit support provider for CES) fall below certain levels, CES would be required to provide additional collateral up to the amount of its previously unsecured credit limit. We estimate that as of December 31, 2014, unsecured credit limits extended to CES by counterparties aggregated $308 million, and $1 million of such amount was utilized.

Pipeline tariffs and contracts typically provide that if the credit ratings of a shipper or the shipper’s guarantor drop below a threshold level, which is generally investment grade ratings from both Moody’s and S&P, cash or other collateral may be demanded from the shipper in an amount equal to the sum of three months’ charges for pipeline services plus the unrecouped cost of any lateral built for such shipper. If the credit ratings of CERC Corp. decline below the applicable threshold levels, CERC Corp. might need to provide cash or other collateral of as much as $160 million as of December 31, 2014. The amount of collateral will depend on seasonal variations in transportation levels.

In September 1999, we issued Zero-Premium Exchangeable Subordinated Notes due 2029 (ZENS) having an original principal amount of $1.0 billion of which $828 million remains outstanding at December 31, 2014. Each ZENS note was originally exchangeable at the holder’s option at any time for an amount of cash equal to 95% of the market value of the reference shares of Time Warner Inc. common stock (TW Common) attributable to such note.  The number and identity of the reference shares attributable to each ZENS note are adjusted for certain corporate events. On June 6, 2014, Time Warner Inc. spun off its ownership of Time Inc. by distributing one share of Time Inc. common stock (Time Common) for every eight shares of TW Common held on the May 23, 2014 record date. As of December 31, 2014, the reference shares for each ZENS note consisted of 0.5 share of TW Common, 0.125505 share of Time Warner Cable Inc. (TWC) common stock (TWC Common), 0.045455 share of AOL Inc. common stock (AOL Common) and 0.0625 share of Time Common.  On February 13, 2014, TWC announced that it had agreed to merge with Comcast Corporation (Comcast). In the merger, each share of TWC Common would be exchanged for 2.875 shares of Comcast common stock (Comcast Common). Upon the closing of the merger (assuming

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no change in the merger consideration), the reference shares for each ZENS note would include 0.360827 share of Comcast Common in place of the current 0.125505 share of TWC Common. If our creditworthiness were to drop such that ZENS note holders thought our liquidity was adversely affected or the market for the ZENS notes were to become illiquid, some ZENS note holders might decide to exchange their ZENS notes for cash. Funds for the payment of cash upon exchange could be obtained from the sale of the shares of TW Common, TWC Common, AOL Common and Time Common that we own or from other sources. We own shares of TW Common, TWC Common, AOL Common and Time Common equal to approximately 100% of the reference shares used to calculate our obligation to the holders of the ZENS notes. ZENS note exchanges result in a cash outflow because tax deferrals related to the ZENS notes and TW Common, TWC Common, AOL Common and Time Common shares would typically cease when ZENS notes are exchanged or otherwise retired and TW Common, TWC Common, AOL Common and Time Common shares are sold. The ultimate tax liability related to the ZENS notes continues to increase by the amount of the tax benefit realized each year, and there could be a significant cash outflow when the taxes are paid as a result of the retirement of the ZENS notes. If all ZENS notes had been exchanged for cash on December 31, 2014, deferred taxes of approximately $357 million would have been payable in 2014. If all the TW Common, TWC Common, AOL Common and Time Common had been sold on December 31, 2014, capital gains taxes of approximately $278 million would have been payable in 2014.

Cross Defaults

Under our revolving credit facility, a payment default on, or a non-payment default that permits acceleration of, any indebtedness for borrowed money and certain other specified types of obligations (including guarantees) exceeding $75 million by us or any of our significant subsidiaries will cause a default. In addition, three outstanding series of our senior notes, aggregating $750 million in principal amount as of December 31, 2014, provide that a payment default by us, CERC Corp. or CenterPoint Houston in respect of, or an acceleration of, borrowed money and certain other specified types of obligations (including guarantees), in the aggregate principal amount of $50 million, will cause a default. A default by CenterPoint Energy would not trigger a default under our subsidiaries’ debt instruments or revolving credit facilities.

Possible Acquisitions, Divestitures and Joint Ventures

From time to time, we consider the acquisition or the disposition of assets or businesses or possible joint ventures or other joint ownership arrangements with respect to assets or businesses. Any determination to take action in this regard will be based on market conditions and opportunities existing at the time, and accordingly, the timing, size or success of any efforts and the associated potential capital commitments are unpredictable. We may seek to fund all or part of any such efforts with proceeds from debt and/or equity issuances. Debt or equity financing may not, however, be available to us at that time due to a variety of events, including, among others, maintenance of our credit ratings, industry conditions, general economic conditions, market conditions and market perceptions.

Enable Midstream Partners

Certain of the entities contributed to Enable by CERC Corp. are obligated on approximately $363 million of indebtedness owed to a wholly owned subsidiary of CERC Corp. that is scheduled to mature in 2017.

Following its IPO in April 2014, Enable is expected to pay a minimum quarterly distribution of $0.2875 per unit on its outstanding units to the extent it has sufficient cash from operations after establishment of cash reserves and payment of fees and expenses, including payments to its general partner and its affiliates (referred to as “available cash”) within 45 days after the end of each quarter. On January 23, 2015, Enable declared a quarterly cash distribution of $0.30875 per unit on all of its outstanding common and subordinated units for the quarter ended December 31, 2014. Accordingly, CERC Corp. expects to receive a cash distribution of approximately $72 million from Enable in the first quarter of 2015 to be made with respect to CERC Corp.’s limited partner interest in Enable for the fourth quarter of 2014.

Dodd-Frank Swaps Regulation

We use derivative instruments such as physical forward contracts, swaps and options to mitigate the impact of changes in commodity prices and weather on our operating results and cash flows. Following enactment of the Dodd-Frank Wall Street Reform and Consumer Protection Act (Dodd-Frank) in July 2010, the Commodity Futures Trading Commission (CFTC) has promulgated regulations to implement Dodd-Frank’s changes to the Commodity Exchange Act, including the definition of commodity-based swaps subject to those regulations.  The CFTC regulations are intended to implement new reporting and record keeping requirements related to their swap transactions and a mandatory clearing and exchange-execution regime for various types, categories or classes of swaps, subject to certain exemptions, including the trade-option and end-user exemptions. Although we anticipate that most, if not all, of our swap transactions should qualify for an exemption to the clearing and

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exchange-execution requirements, we will still be subject to record keeping and reporting requirements. Other changes to the Commodity Exchange Act made as a result of Dodd-Frank and the CFTC’s implementing regulations could increase the cost of entering into new swaps.

Collection of Receivables from REPs

CenterPoint Houston’s receivables from the distribution of electricity are collected from REPs that supply the electricity CenterPoint Houston distributes to their customers. Adverse economic conditions, structural problems in the market served by ERCOT or financial difficulties of one or more REPs could impair the ability of these REPs to pay for CenterPoint Houston’s services or could cause them to delay such payments. CenterPoint Houston depends on these REPs to remit payments on a timely basis, and any delay or default in payment by REPs could adversely affect CenterPoint Houston’s cash flows. In the event of a REP’s default, CenterPoint Houston’s tariff provides a number of remedies, including the option for CenterPoint Houston to request that the Texas Utility Commission suspend or revoke the certification of the REP. Applicable regulatory provisions require that customers be shifted to another REP or a provider of last resort if a REP cannot make timely payments. However, CenterPoint Houston remains at risk for payments related to services provided prior to the shift to the replacement REP or the provider of last resort. If a REP were unable to meet its obligations, it could consider, among various options, restructuring under the bankruptcy laws, in which event such REP might seek to avoid honoring its obligations, and claims might be made against CenterPoint Houston involving payments it had received from such REP. If a REP were to file for bankruptcy, CenterPoint Houston may not be successful in recovering accrued receivables owed by such REP that are unpaid as of the date the REP filed for bankruptcy. However, Texas Utility Commission regulations authorize utilities, such as CEHE, to defer bad debts resulting from defaults by REPs for recovery in future rate cases, subject to a review of reasonableness and necessity.

Other Factors that Could Affect Cash Requirements

In addition to the above factors, our liquidity and capital resources could be affected by:

• cash collateral requirements that could exist in connection with certain contracts, including our weather hedging arrangements, and gas purchases, gas price and gas storage activities of our Natural Gas Distribution and Energy Services business segments;

• acceleration of payment dates on certain gas supply contracts, under certain circumstances, as a result of increased gas prices and concentration of natural gas suppliers;

• increased costs related to the acquisition of natural gas;

• increases in interest expense in connection with debt refinancings and borrowings under credit facilities;

• various legislative or regulatory actions;

• incremental collateral, if any, that may be required due to regulation of derivatives;

• the ability of GenOn and its subsidiaries to satisfy their obligations in respect of GenOn’s indemnity obligations to us and our subsidiaries;

• the ability of REPs, including REP affiliates of NRG Energy, Inc. and Energy Future Holdings Corp., to satisfy their obligations to us and our subsidiaries;

• slower customer payments and increased write-offs of receivables due to higher gas prices or changing economic conditions;

• the outcome of litigation brought by and against us;

• contributions to pension and postretirement benefit plans;

• restoration costs and revenue losses resulting from future natural disasters such as hurricanes and the timing of recovery of such restoration costs; and

• various other risks identified in “Risk Factors” in Item 1A of Part I of this report.

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Certain Contractual Limits on Our Ability to Issue Securities and Borrow Money

CenterPoint Houston’s revolving credit facility limits CenterPoint Houston’s consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of its consolidated capitalization. CERC Corp.’s revolving credit facility limits CERC’s consolidated debt to an amount not to exceed 65% of its consolidated capitalization. Our revolving credit facility limits our consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of our consolidated capitalization. The financial covenant limit in our revolving credit facility will temporarily increase from 65% to 70% if CenterPoint Houston experiences damage from a natural disaster in its service territory that meets certain criteria. Additionally, CenterPoint Houston has contractually agreed that it will not issue additional first mortgage bonds, subject to certain exceptions.

CRITICAL ACCOUNTING POLICIES

A critical accounting policy is one that is both important to the presentation of our financial condition and results of operations and requires management to make difficult, subjective or complex accounting estimates. An accounting estimate is an approximation made by management of a financial statement element, item or account in the financial statements. Accounting estimates in our historical consolidated financial statements measure the effects of past business transactions or events, or the present status of an asset or liability. The accounting estimates described below require us to make assumptions about matters that are highly uncertain at the time the estimate is made. Additionally, different estimates that we could have used or changes in an accounting estimate that are reasonably likely to occur could have a material impact on the presentation of our financial condition, results of operations or cash flows. The circumstances that make these judgments difficult, subjective and/or complex have to do with the need to make estimates about the effect of matters that are inherently uncertain. Estimates and assumptions about future events and their effects cannot be predicted with certainty. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments. These estimates may change as new events occur, as more experience is acquired, as additional information is obtained and as our operating environment changes. Our significant accounting policies are discussed in Note 2 to our consolidated financial statements. We believe the following accounting policies involve the application of critical accounting estimates. Accordingly, these accounting estimates have been reviewed and discussed with the audit committee of the board of directors.

Accounting for Rate Regulation

Accounting guidance for regulated operations provides that rate-regulated entities account for and report assets and liabilities consistent with the recovery of those incurred costs in rates if the rates established are designed to recover the costs of providing the regulated service and if the competitive environment makes it probable that such rates can be charged and collected. Our Electric Transmission & Distribution business segment and our Natural Gas Distribution business segment apply this accounting guidance. Certain expenses and revenues subject to utility regulation or rate determination normally reflected in income are deferred on the balance sheet as regulatory assets or liabilities and are recognized in income as the related amounts are included in service rates and recovered from or refunded to customers.  Regulatory assets and liabilities are recorded when it is probable that these items will be recovered or reflected in future rates.  Determining probability requires significant judgment on the part of management and includes, but is not limited to, consideration of testimony presented in regulatory hearings, proposed regulatory decisions, final regulatory orders and the strength or status of applications for rehearing or state court appeals.  If events were to occur that would make the recovery of these assets and liabilities no longer probable, we would be required to write off or write down these regulatory assets and liabilities.  At December 31, 2014, we had recorded regulatory assets of $3.5 billion and regulatory liabilities of $1.2 billion.

Impairment of Long-Lived Assets, Including Identifiable Intangibles, Goodwill and Equity Method Investments

We review the carrying value of our long-lived assets, including identifiable intangibles, goodwill and equity method investments whenever events or changes in circumstances indicate that such carrying values may not be recoverable, and at least annually for goodwill as required by accounting guidance for goodwill and other intangible assets.  A loss in value of an equity method investment is recognized when the decline is deemed to be other than temporary.  Unforeseen events and changes in market conditions could have a material effect on the value of long-lived assets, including intangibles, goodwill and equity method investments due to changes in estimates of future cash flows, interest rate and regulatory matters and could result in an impairment charge.  We recorded goodwill impairment of $-0- during 2014 and 2013, and $252 million during 2012. We did not record material impairments to long-lived assets, including intangibles, or equity method investments during 2014, 2013, and 2012.

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We performed our annual goodwill impairment test in the third quarter of 2014 and determined, based on the results of the first step, using the income approach, no impairment charge was required for any reporting unit.  Our reporting units approximate our reportable segments.

Fair value is the amount at which the asset could be bought or sold in a current transaction between willing parties and may be estimated using a number of techniques, including quoted market prices or valuations by third parties, present value techniques based on estimates of cash flows, or multiples of earnings or revenue performance measures. The fair value of the asset could be different using different estimates and assumptions in these valuation techniques.

The determination of fair value requires significant assumptions by management which are subjective and forward-looking in nature. To assist in making these assumptions, we utilized a third-party valuation specialist in both determining and testing key assumptions used in the valuation of each of our reporting units. We based our assumptions on projected financial information that we believe is reasonable; however, actual results may differ materially from those projections. These projected cash flows factor in planned growth initiatives, and for our Natural Gas Distribution reporting unit, the regulatory environment. The fair value of our Natural Gas Distribution reporting unit significantly exceeded the carrying value. The fair value of our Energy Services reporting unit exceeded the carrying value by approximately $50 million or approximately 14% excess fair value over the carrying value.

A key assumption in the income approach was the weighted average cost of capital of 5.5% and 5.9% applied in the valuation for Natural Gas Distributions and Energy Services, respectively. An increase in the discount rate to greater than 6.5%, a decline in long-term growth rate from 3% to 2.3%, or a decrease in the aggregate cash flows of greater than 15% could have individually triggered a step-two goodwill impairment evaluation for our Energy Services reporting unit in 2014.

Although there was not a goodwill asset impairment in our 2014 annual test, an interim impairment test could be triggered by the following: actual earnings results that are materially lower than expected, significant adverse changes in the operating environment, an increase in the discount rate, changes in other key assumptions which require judgment and are forward looking in nature, or if our market capitalization falls below book value for an extended period of time. No impairment triggers were identified subsequent to our 2014 annual test.

Unbilled Energy Revenues

Revenues related to electricity delivery and natural gas sales and services are generally recognized upon delivery to customers. However, the determination of deliveries to individual customers is based on the reading of their meters, which is performed on a systematic basis throughout the month either electronically through AMS meter communications or manual readings. At the end of each month, deliveries to non-AMS customers since the date of the last meter reading are estimated and the corresponding unbilled revenue is estimated. Information regarding deliveries to AMS customers after the last billing is obtained from actual AMS meter usage data. Unbilled electricity delivery revenue is estimated each month based on actual AMS meter data, daily supply volumes and applicable rates. Unbilled natural gas sales are estimated based on estimated purchased gas volumes, estimated lost and unaccounted for gas and tariffed rates in effect. As additional information becomes available, or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.

Pension and Other Retirement Plans

We sponsor pension and other retirement plans in various forms covering all employees who meet eligibility requirements. We use several statistical and other factors that attempt to anticipate future events in calculating the expense and liability related to our plans. These factors include assumptions about the discount rate, expected return on plan assets and rate of future compensation increases as estimated by management, within certain guidelines. In addition, our actuarial consultants use subjective factors such as withdrawal and mortality rates. The actuarial assumptions used may differ materially from actual results due to changing market and economic conditions, higher or lower withdrawal rates or longer or shorter life spans of participants. These differences may result in a significant impact to the amount of pension expense recorded. Please read “— Other Significant Matters — Pension Plans” for further discussion.

NEW ACCOUNTING PRONOUNCEMENTS

See Note 2(o) to our consolidated financial statements for a discussion of new accounting pronouncements that affect us.

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OTHER SIGNIFICANT MATTERS

Pension Plans.  As discussed in Note 6(b) to our consolidated financial statements, we maintain a non-contributory qualified defined benefit pension plan covering substantially all employees. Employer contributions for the qualified plan are based on actuarial computations that establish the minimum contribution required under the Employee Retirement Income Security Act of 1974 (ERISA) and the maximum deductible contribution for income tax purposes.

Under the terms of our pension plan, we reserve the right to change, modify or terminate the plan. Our funding policy is to review amounts annually and contribute an amount at least equal to the minimum contribution required under ERISA.

The minimum funding requirements for the qualified pension plan were $87 million, $83 million and $73 million for 2014, 2013 and 2012, respectively. We made contributions of $87 million, $83 million and $73 million in 2014, 2013 and 2012 for the respective years. We expect to make contributions aggregating approximately $35 million in 2015.

Additionally, we maintain an unfunded non-qualified benefit restoration plan that allows participants to receive the benefits to which they would have been entitled under our non-contributory pension plan except for the federally mandated limits on qualified plan benefits or on the level of compensation on which qualified plan benefits may be calculated. Employer contributions for the non-qualified benefit restoration plan represent benefit payments made to participants and totaled $10 million, $8 million and $9 million in 2014, 2013 and 2012, respectively. We expect to make contributions aggregating approximately $31 million in 2015.

Changes in pension obligations and assets may not be immediately recognized as pension expense in the income statement, but generally are recognized in future years over the remaining average service period of plan participants. As such, significant portions of pension expense recorded in any period may not reflect the actual level of benefit payments provided to plan participants.

As the sponsor of a plan, we are required to (a) recognize on our balance sheet as an asset a plan’s over-funded status or as a liability such plan’s under-funded status, (b) measure a plan’s assets and obligations as of the end of our fiscal year and (c) recognize changes in the funded status of our plans in the year that changes occur through adjustments to other comprehensive income and regulatory assets.

The projected benefit obligation for all defined benefit pension plans was $2,403 million and $2,153 million as of December 31, 2014 and 2013, respectively. The adoption of the new mortality table by the Society of Actuaries as of December 31, 2014 significantly contributed to the increase in the projected benefit obligation for the year.

As of December 31, 2014, the projected benefit obligation exceeded the market value of plan assets of our pension plans by $478 million. Changes in interest rates or the market values of the securities held by the plan during 2015 could materially, positively or negatively, change our funded status and affect the level of pension expense and required contributions.

Pension cost was $77 million, $72 million and $82 million for 2014, 2013 and 2012, respectively, of which $71 million, $64 million and $67 million impacted pre-tax earnings. Included in the 2014 pension cost was $6 million related to the curtailment loss discussed below.

During the fourth quarter of 2014, CenterPoint Energy received notification from Enable of its intent to provide employment offers to substantially all seconded employees. As a result, an additional pension cost of $6 million was recognized for the curtailment loss related to our pension plans. Substantially all of the seconded employees became employees of Enable effective January 1, 2015.

The calculation of pension expense and related liabilities requires the use of assumptions. Changes in these assumptions can result in different expense and liability amounts, and future actual experience can differ from the assumptions. Two of the most critical assumptions are the expected long-term rate of return on plan assets and the assumed discount rate.

As of December 31, 2014, our qualified pension plan had an expected long-term rate of return on plan assets of 6.50%, which is a 0.50% decrease from the rate assumed as of December 31, 2013 due to the increase in the allocation to fixed income investments in our targeted asset allocation. The expected rate of return assumption was developed using the targeted asset allocation of our plans and the expected return for each asset class. We regularly review our actual asset allocation and periodically rebalance plan assets to reduce volatility and better match plan assets and liabilities.

As of December 31, 2014, the projected benefit obligation was calculated assuming a discount rate of 4.05%, which is 0.75% lower than the 4.80% discount rate assumed in 2013. The discount rate was determined by reviewing yields on high-quality bonds

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that receive one of the two highest ratings given by a recognized rating agency and the expected duration of pension obligations specific to the characteristics of our plan.

Pension cost for 2015, including the benefit restoration plan, is estimated to be $80 million, of which we expect $55 million to impact pre-tax earnings, based on an expected return on plan assets of 6.50% and a discount rate of 4.05% as of December 31, 2014. If the expected return assumption were lowered by 0.50% from 6.50% to 6.00%, 2015 pension cost would increase by approximately $9 million.

As of December 31, 2014, the pension plan projected benefit obligation, including the unfunded benefit restoration plan, exceeded plan assets by $478 million.  If the discount rate were lowered by 0.50% from 4.05% to 3.55%, the assumption change would increase our projected benefit obligation by approximately $130 million and decrease our pension expense by approximately $3 million. The expected reduction in pension expense due to the decrease in discount rate is a result of the expected correlation between the reduced interest rate and appreciation of fixed income assets in pension plans with significantly more fixed income instruments than equity instruments. In addition, the assumption change would impact our Consolidated Balance Sheet by increasing the regulatory asset recorded as of December 31, 2014 by $113 million and would result in a charge to comprehensive income in 2014 of $11 million, net of tax.

Future changes in plan asset returns, assumed discount rates and various other factors related to the pension plan will impact our future pension expense and liabilities. We cannot predict with certainty what these factors will be.

Item 7A.     Quantitative and Qualitative Disclosures About Market Risk

Impact of Changes in Interest Rates and Energy Commodity Prices

We are exposed to various market risks. These risks arise from transactions entered into in the normal course of business and are inherent in our consolidated financial statements. Most of the revenues and income from our business activities are affected by market risks. Categories of market risk include exposure to commodity prices through non-trading activities, interest rates and equity prices. A description of each market risk is set forth below:

• Commodity price risk results from exposures to changes in spot prices, forward prices and price volatilities of commodities, such as natural gas, natural gas liquids and other energy commodities.

• Interest rate risk primarily results from exposures to changes in the level of borrowings and changes in interest rates.

• Equity price risk results from exposures to changes in prices of individual equity securities.

Management has established comprehensive risk management policies to monitor and manage these market risks. We manage these risk exposures through the implementation of our risk management policies and framework. We manage our commodity price risk exposures through the use of derivative financial instruments and derivative commodity instrument contracts. During the normal course of business, we review our hedging strategies and determine the hedging approach we deem appropriate based upon the circumstances of each situation.

Derivative instruments such as futures, forward contracts, swaps and options derive their value from underlying assets, indices, reference rates or a combination of these factors. These derivative instruments include negotiated contracts, which are referred to as over-the-counter derivatives, and instruments that are listed and traded on an exchange.

Derivative transactions are entered into in our non-trading operations to manage and hedge certain exposures, such as exposure to changes in natural gas prices. We believe that the associated market risk of these instruments can best be understood relative to the underlying assets or risk being hedged.

Interest Rate Risk

As of December 31, 2014, we had outstanding long-term debt, lease obligations and obligations under our ZENS that subject us to the risk of loss associated with movements in market interest rates.

Our floating rate obligations aggregated $532 million and $118 million at December 31, 2014 and 2013, respectively.

As of December 31, 2014 and 2013, we had outstanding fixed-rate debt (excluding indexed debt securities) aggregating $8.2 billion and $8.1 billion, respectively, in principal amount and having a fair value of $8.9 billion and $8.6 billion, respectively.

69

Because these instruments are fixed-rate, they do not expose us to the risk of loss in earnings due to changes in market interest rates (please read Note 12 to our consolidated financial statements). However, the fair value of these instruments would increase by approximately $232 million if interest rates were to decline by 10% from their levels at December 31, 2014. In general, such an increase in fair value would impact earnings and cash flows only if we were to reacquire all or a portion of these instruments in the open market prior to their maturity.

As discussed in Note 10 to our consolidated financial statements, the ZENS obligation is bifurcated into a debt component and a derivative component. The debt component of $152 million at December 31, 2014 was a fixed-rate obligation and, therefore, did not expose us to the risk of loss in earnings due to changes in market interest rates. However, the fair value of the debt component would increase by approximately $25 million if interest rates were to decline by 10% from levels at December 31, 2014. Changes in the fair value of the derivative component, a $541 million recorded liability at December 31, 2014, are recorded in our Statements of Consolidated Income and, therefore, we are exposed to changes in the fair value of the derivative component as a result of changes in the underlying risk-free interest rate. If the risk-free interest rate were to increase by 10% from December 31, 2014 levels, the fair value of the derivative component liability would increase by approximately $9 million, which would be recorded as an unrealized loss in our Statements of Consolidated Income.

Equity Market Value Risk

We are exposed to equity market value risk through our ownership of 7.1 million shares of TW Common, 1.8 million shares of TWC Common, 0.6 million shares of AOL Common and 0.9 million shares of Time Common, which we hold to facilitate our ability to meet our obligations under the ZENS. Please read Note 10 to our consolidated financial statements for a discussion of our ZENS obligation. A decrease of 10% from the December 31, 2014 aggregate market value of these shares would result in a net loss of approximately $14 million, which would be recorded as an unrealized loss in our Statements of Consolidated Income.

Commodity Price Risk From Non-Trading Activities

We use derivative instruments as economic hedges to offset the commodity price exposure inherent in our businesses. The stand-alone commodity risk created by these instruments, without regard to the offsetting effect of the underlying exposure these instruments are intended to hedge, is described below. We measure the commodity risk of our non-trading energy derivatives using a sensitivity analysis. The sensitivity analysis performed on our non-trading energy derivatives measures the potential loss in fair value based on a hypothetical 10% movement in energy prices. At December 31, 2014, the recorded fair value of our non-trading energy derivatives was a net asset of $47 million (before collateral), all of which is related to our Energy Services business segment. An increase of 10% in the market prices of energy commodities from their December 31, 2014 levels would have decreased the fair value of our non-trading energy derivatives net asset by $7 million.

The above analysis of the non-trading energy derivatives utilized for commodity price risk management purposes does not include the favorable impact that the same hypothetical price movement would have on our non-derivative physical purchases and sales of natural gas to which the hedges relate. Furthermore, the non-trading energy derivative portfolio is managed to complement the physical transaction portfolio, reducing overall risks within limits. Therefore, the adverse impact to the fair value of the portfolio of non-trading energy derivatives held for hedging purposes associated with the hypothetical changes in commodity prices referenced above is expected to be substantially offset by a favorable impact on the underlying hedged physical transactions.

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Item 8.        Financial Statements and Supplementary Data

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of

CenterPoint Energy, Inc.

Houston, Texas

We have audited the accompanying consolidated balance sheets of CenterPoint Energy, Inc. and subsidiaries (the “Company”) as of December 31, 2014 and 2013, and the related statements of consolidated income, comprehensive income, shareholders’ equity, and cash flows for each of the three years in the period ended December 31, 2014.  These financial statements are the responsibility of the Company’s management.  Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States).  Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement.  An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements.  An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation.  We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of CenterPoint Energy, Inc. and subsidiaries as of December 31, 2014 and 2013, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2014, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company’s internal control over financial reporting as of December 31, 2014, based on the criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 26, 2015 expressed an unqualified opinion on the Company’s internal control over financial reporting.

/s/ DELOITTE & TOUCHE LLP

Houston, Texas

February 26, 2015

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CENTERPOINT ENERGY, INC. AND SUBSIDIARIES

STATEMENTS OF CONSOLIDATED INCOME

	Year Ended December 31,
	2014			2013			2012
	(in millions, except per share amounts)
Revenues	$	9,226		$	8,106		$	7,452
Expenses:
Natural gas	4,921			3,908			2,873
Operation and maintenance	1,969			1,847			1,874
Depreciation and amortization	1,013			954			1,050
Taxes other than income taxes	388			387			365
Goodwill impairment	—			—			252
Total	8,291			7,096			6,414
Operating Income	935			1,010			1,038
Other Income (Expense):
Gain on marketable securities	163			236			154
Loss on indexed debt securities	(86		)	(193		)	(71		)
Interest and other finance charges	(353		)	(351		)	(422		)
Interest on transition and system restoration bonds	(118		)	(133		)	(147		)
Equity in earnings of unconsolidated affiliates	308			188			31
Step acquisition gain	—			—			136
Other, net	36			24			38
Total	(50		)	(229		)	(281		)
Income Before Income Taxes	885			781			757
Income tax expense	274			470			340
Net Income	$	611		$	311		$	417
Basic Earnings Per Share	$	1.42		$	0.73		$	0.98
Diluted Earnings Per Share	$	1.42		$	0.72		$	0.97
Weighted Average Shares Outstanding, Basic	430			428			427
Weighted Average Shares Outstanding, Diluted	432			431			430

See Notes to Consolidated Financial Statements

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CENTERPOINT ENERGY, INC. AND SUBSIDIARIES

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Net income	$	611	$	311	$	417
Other comprehensive income (loss):
Adjustment to pension and other postretirement plans (net of tax of $5, $25 and $2, respectively)	3		44		(2		)
Reclassification of deferred loss from cash flow hedges realized in net income (net of tax)	1		1		—
Other comprehensive income (loss)	4		45		(2		)
Comprehensive income	$	615	$	356	$	415

See Notes to Consolidated Financial Statements

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CENTERPOINT ENERGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

	December 31, 2014		December 31, 2013
	(in millions)
ASSETS
Current Assets:
Cash and cash equivalents ($290 and $207 related to VIEs, respectively)	$	298	$	208
Investment in marketable securities	930		767
Accounts receivable ($58 and $60 related to VIEs, respectively), less bad debt reserve of $26 and $28, respectively	837		851
Accrued unbilled revenues	357		398
Inventory	379		285
Non-trading derivative assets	99		24
Taxes receivable	190		—
Prepaid expense and other current assets ($47 and $41 related to VIEs, respectively)	178		125
Total current assets	3,268		2,658
Property, Plant and Equipment, net	10,502		9,593
Other Assets:
Goodwill	840		840
Regulatory assets ($2,738 and $3,179 related to VIEs, respectively)	3,527		3,726
Notes receivable - affiliated companies	363		363
Non-trading derivative assets	32		10
Investment in unconsolidated affiliates	4,521		4,518
Other	147		162
Total other assets	9,430		9,619
Total Assets	$	23,200	$	21,870
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current Liabilities:
Short-term borrowings	$	53	$	43
Current portion of VIE transition and system restoration bonds long-term debt	372		354
Indexed debt	152		143
Current portion of other long-term debt	271		—
Indexed debt securities derivative	541		455
Accounts payable	716		689
Taxes accrued	161		184
Interest accrued	124		124
Non-trading derivative liabilities	19		17
Accumulated deferred income taxes, net	683		608
Other	383		402
Total current liabilities	3,475		3,019
Other Liabilities:
Accumulated deferred income taxes, net	4,757		4,542
Non-trading derivative liabilities	1		4
Benefit obligations	953		802
Regulatory liabilities	1,206		1,152
Other	251		205
Total other liabilities	7,168		6,705
Long-term Debt:
VIE transition and system restoration bonds	2,674		3,046
Other long-term debt	5,335		4,771
Total long-term debt	8,009		7,817
Commitments and Contingencies (Note 14)
Shareholders’ Equity	4,548		4,329
Total Liabilities and Shareholders’ Equity	$	23,200	$	21,870

See Notes to Consolidated Financial Statements

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CENTERPOINT ENERGY, INC. AND SUBSIDIARIES

STATEMENTS OF CONSOLIDATED CASH FLOWS

	Year Ended December 31,
	2014			2013			2012
	(in millions)
Cash Flows from Operating Activities:
Net income	$	611		$	311		$	417
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,013			954			1,050
Amortization of deferred financing costs	28			30			32
Deferred income taxes	280			356			328
Goodwill impairment	—			—			252
Step acquisition gain	—			—			(136		)
Unrealized gain on marketable securities	(163		)	(236		)	(154		)
Unrealized loss on indexed debt securities	86			193			71
Write-down of natural gas inventory	8			4			4
Equity in earnings of unconsolidated affiliates, net of distributions	(2		)	(58		)	8
Pension contributions	(97		)	(91		)	(82		)
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	39			(256		)	10
Inventory	(102		)	(22		)	27
Taxes receivable	(190		)	7			(7		)
Accounts payable	(3		)	152			(6		)
Fuel cost recovery	(41		)	108			(52		)
Non-trading derivatives, net	(34		)	4			20
Margin deposits, net	(79		)	16			53
Interest and taxes accrued	(23		)	41			(62		)
Net regulatory assets and liabilities	22			61			66
Other current assets	1			(2		)	(12		)
Other current liabilities	(20		)	21			18
Other assets	9			(24		)	(18		)
Other liabilities	41			20			16
Other, net	13			24			17
Net cash provided by operating activities	1,397			1,613			1,860
Cash Flows from Investing Activities:
Capital expenditures, net of acquisitions	(1,372		)	(1,286		)	(1,212		)
Acquisitions, net of cash acquired	—			—			(360		)
Decrease (increase) in restricted cash of transition and system restoration bond companies	(7		)	17			(13		)
Investment in unconsolidated affiliates	(1		)	—			(5		)
Cash contribution to Enable	—			(38		)	—
Proceeds from sale of marketable securities	—			9			—
Other, net	(4		)	(2		)	(13		)
Net cash used in investing activities	(1,384		)	(1,300		)	(1,603		)
Cash Flows from Financing Activities:
Increase (decrease) in short-term borrowings, net	10			5			(24		)
Proceeds from (payments of) commercial paper, net	414			118			(285		)
Proceeds from long-term debt	600			1,050			2,495
Payments of long-term debt	(537		)	(1,573		)	(1,590		)
Cash paid for debt exchange and debt retirement	(1		)	(7		)	(69		)
Debt issuance costs	(8		)	(3		)	(16		)
Redemption of indexed debt securities	—			(8		)	—
Payment of common stock dividends	(408		)	(355		)	(346		)
Proceeds from issuance of common stock, net	1			4			4
Other, net	6			18			—
Net cash provided by (used in) financing activities	77			(751		)	169
Net Increase (Decrease) in Cash and Cash Equivalents	90			(438		)	426
Cash and Cash Equivalents at Beginning of Year	208			646			220
Cash and Cash Equivalents at End of Year	$	298		$	208		$	646

See Notes to Consolidated Financial Statements

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CENTERPOINT ENERGY, INC. AND SUBSIDIARIES

STATEMENTS OF CONSOLIDATED CASH FLOWS, cont.

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Supplemental Disclosure of Cash Flow Information:
Cash Payments:
Interest, net of capitalized interest	$	434	$	475	$	556
Income taxes, net	192		35		46
Non-cash transactions:
Accounts payable related to capital expenditures	104		74		110
Formation of Enable	—		4,252		—
Exercise of SESH put to Enable	196		—		—

See Notes to Consolidated Financial Statements

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CENTERPOINT ENERGY, INC. AND SUBSIDIARIES

STATEMENTS OF CONSOLIDATED SHAREHOLDERS’ EQUITY

	2014				2013				2012
	Shares	Amount			Shares	Amount			Shares	Amount
	(in millions of dollars and shares)
Preference Stock, none outstanding	—	$	—		—	$	—		—	$	—
Cumulative Preferred Stock, $0.01 par value; authorized 20,000,000 shares, none outstanding	—	—			—	—			—	—
Common Stock, $0.01 par value; authorized 1,000,000,000 shares
Balance, beginning of year	429	4			428	4			426	4
Issuances related to benefit and investment plans	1	—			1	—			2	—
Balance, end of year	430	4			429	4			428	4
Additional Paid-in-Capital
Balance, beginning of year		4,157				4,130				4,120
Issuances related to benefit and investment plans		12				27				10
Balance, end of year		4,169				4,157				4,130
Retained Earnings
Balance, beginning of year		258				302				231
Net income		611				311				417
Common stock dividends		(408		)		(355		)		(346		)
Balance, end of year		461				258				302
Accumulated Other Comprehensive Loss
Balance, end of year:
Adjustment to pension and postretirement plans		(85		)		(88		)		(132		)
Net deferred loss from cash flow hedges		(1		)		(2		)		(3		)
Total accumulated other comprehensive loss, end of year		(86		)		(90		)		(135		)
Total Shareholders’ Equity		$	4,548			$	4,329			$	4,301

See Notes to Consolidated Financial Statements

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CENTERPOINT ENERGY, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(1) Background

CenterPoint Energy, Inc. is a public utility holding company. CenterPoint Energy’s operating subsidiaries own and operate electric transmission and distribution facilities and natural gas distribution facilities and own interests in Enable Midstream Partners, LP (Enable) as described below. As of December 31, 2014, CenterPoint Energy’s indirect wholly owned subsidiaries included:

• CenterPoint Energy Houston Electric, LLC (CenterPoint Houston), which engages in the electric transmission and distribution business in the Texas Gulf Coast area that includes the city of Houston; and

• CenterPoint Energy Resources Corp. (CERC Corp. and, together with its subsidiaries, CERC), which owns and operates natural gas distribution systems (NGD). A wholly owned subsidiary of CERC Corp. offers variable and fixed-price physical natural gas supplies primarily to commercial and industrial customers and electric and gas utilities. As of December 31, 2014, CERC Corp. also owned approximately 55.4% of the limited partner interests in Enable, which owns, operates and develops natural gas and crude oil infrastructure assets.

For a description of CenterPoint Energy’s reportable business segments, see Note 17.

(2) Summary of Significant Accounting Policies

(a) Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

(b) Principles of Consolidation

The accounts of CenterPoint Energy and its wholly owned and majority owned subsidiaries are included in the consolidated financial statements. All intercompany transactions and balances are eliminated in consolidation. CenterPoint Energy generally uses the equity method of accounting for investments in entities in which CenterPoint Energy has an ownership interest between 20% and 50% and exercises significant influence. CenterPoint Energy also uses the equity method for investments in which it has ownership percentages greater than 50%, when it exercises significant influence, does not have control and is not considered the primary beneficiary, if applicable.

On March 14, 2013, CenterPoint Energy entered into a Master Formation Agreement (MFA) with OGE Energy Corp. (OGE) and affiliates of ArcLight Capital Partners, LLC (ArcLight), pursuant to which CenterPoint Energy, OGE and ArcLight agreed to form Enable as a private limited partnership. On May 1, 2013, the parties closed on the formation of Enable. In connection with the closing (i) CERC Corp. converted its direct wholly owned subsidiary, CenterPoint Energy Field Services, LLC, a Delaware limited liability company (CEFS), into a Delaware limited partnership that became Enable, (ii) CERC Corp. contributed to Enable its equity interests in each of CenterPoint Energy Gas Transmission Company, LLC, which has been subsequently renamed Enable Gas Transmission, LLC (EGT), CenterPoint Energy - Mississippi River Transmission, LLC, which has been subsequently renamed Enable Mississippi River Transmission, LLC (MRT), certain of its other midstream subsidiaries (Other CNP Midstream Subsidiaries), and a 24.95% interest in Southeast Supply Header, LLC (SESH and, collectively with CEFS, EGT, MRT and Other CNP Midstream Subsidiaries, CenterPoint Midstream), and (iii) OGE and ArcLight indirectly contributed 100% of the equity interests in Enogex LLC, which has been subsequently renamed Enable Oklahoma Intrastate Transmission, LLC (Enogex), to Enable.

The formation of Enable by CenterPoint Energy was considered a contribution of in-substance real estate to a limited partnership as the businesses are composed of, and reliant upon, substantial real estate assets and integral equipment. Real estate assets and integral equipment primarily include gas transmission pipelines, compressor station equipment, rights of way, storage and processing assets and long-term customer contracts. Accordingly, CenterPoint Energy did not recognize a gain or loss upon contribution and recorded its investment in Enable using the equity method of accounting based on the historical cost of the contributed assets and liabilities as of May 1, 2013 (Closing Date). Approximately $5.8 billion of assets (which includes $4.7 billion in property, plant and equipment, net, $629 million in goodwill and $197 million for the 24.95% investment in SESH) and

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$1.5 billion of liabilities (which includes a term loan and the indebtedness owed to CERC of $1.05 billion and $363 million, respectively) were contributed by CERC Corp. CenterPoint Energy has the ability to significantly influence the operating and financial policies of, but not solely control, Enable and, accordingly, recorded an equity method investment, at the historical costs of net assets contributed, of $4.3 billion in Enable on the Closing Date. Pursuant to the MFA, CenterPoint Energy retained certain assets and liabilities historically held by CenterPoint Midstream such as balances relating to federal income taxes and benefit plan obligations.

Under the equity method, CenterPoint Energy adjusts its investment in Enable each period for contributions made, distributions received, CenterPoint Energy’s share of Enable’s comprehensive income and accretion of basis differences, as appropriate. CenterPoint Energy evaluates its equity method investments for impairment when events or changes in circumstances indicate there is a loss in value of the investment that is other than a temporary decline.

CenterPoint Energy’s investment in Enable is considered to be a variable interest entity (VIE) because the power to direct the activities that most significantly impact Enable’s economic performance does not reside with the holders of equity investment at risk. However, CenterPoint Energy is not considered the primary beneficiary of Enable since it does not have the power to direct the activities of Enable that are considered most significant to the economic performance of Enable.

As of December 31, 2014, CERC Corp. and OGE held approximately 55.4% and 26.3%, respectively, of the limited partner interests in Enable. Enable is controlled jointly by CERC Corp. and OGE, and each own 50% of the management rights in the general partner of Enable.

As of December 31, 2014, CERC Corp. and OGE also own a 40% and 60% interest, respectively, in the incentive distribution rights held by the general partner of Enable. Enable is expected to pay a minimum quarterly distribution of $0.2875 per unit on its outstanding units to the extent it has sufficient cash from operations after establishment of cash reserves and payment of fees and expenses, including payments to its general partner and its affiliates, within 45 days after the end of each quarter. If cash distributions to Enable’s unitholders exceed $0.330625 per unit in any quarter, the general partner will receive increasing percentages or incentive distributions rights, up to 50%, of the cash Enable distributes in excess of that amount. In certain circumstances the general partner of Enable will have the right to reset the minimum quarterly distribution and the target distribution levels at which the incentive distributions receive increasing percentages to higher levels based on Enable’s cash distributions at the time of the exercise of this reset election.

Prior to July 2012, CenterPoint Energy owned a 50% interest in Waskom Gas Processing Company (Waskom), a Texas general partnership, which owns and operates a natural gas processing plant and natural gas gathering assets. On July 31, 2012, CenterPoint Energy purchased the 50% interest that it did not already own in Waskom, as well as other gathering and related assets from a third-party for approximately $273 million. The purchase of the 50% interest in Waskom was determined to be a business combination achieved in stages, and as such CenterPoint Energy recorded a pre-tax gain of approximately $136 million on July 31, 2012, which is the result of remeasuring its original 50% interest in Waskom to fair value.

Other investments, excluding marketable securities, are carried at cost.

As of December 31, 2014, CenterPoint Energy had VIEs consisting of transition and system restoration bond companies, which it consolidates. The consolidated VIEs are wholly owned bankruptcy remote special purpose entities that were formed specifically for the purpose of securitizing transition and system restoration related property. Creditors of CenterPoint Energy have no recourse to any assets or revenues of the transition and system restoration bond companies. The bonds issued by these VIEs are payable only from and secured by transition and system restoration property and the bondholders have no recourse to the general credit of CenterPoint Energy.

(c) Revenues

CenterPoint Energy records revenue for electricity delivery and natural gas sales and services under the accrual method and these revenues are recognized upon delivery to customers. Electricity deliveries not billed by month-end are accrued based on actual advanced metering system data, daily supply volumes and applicable rates. Natural gas sales not billed by month-end are accrued based upon estimated purchased gas volumes, estimated lost and unaccounted for gas and currently effective tariff rates.

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(d) Long-lived Assets and Intangibles

CenterPoint Energy records property, plant and equipment at historical cost. CenterPoint Energy expenses repair and maintenance costs as incurred.

CenterPoint Energy periodically evaluates long-lived assets, including property, plant and equipment, and specifically identifiable intangibles, when events or changes in circumstances indicate that the carrying value of these assets may not be recoverable. The determination of whether an impairment has occurred is based on an estimate of undiscounted cash flows attributable to the assets compared to the carrying value of the assets.

(e) Regulatory Assets and Liabilities

CenterPoint Energy applies the guidance for accounting for regulated operations to the Electric Transmission & Distribution business segment and the Natural Gas Distribution business segment. CenterPoint Energy’s rate-regulated subsidiaries may collect revenues subject to refund pending final determination in rate proceedings. In connection with such revenues, estimated rate refund liabilities are recorded which reflect management’s current judgment of the ultimate outcomes of the proceedings.

CenterPoint Energy’s rate-regulated businesses recognize removal costs as a component of depreciation expense in accordance with regulatory treatment. As of December 31, 2014 and 2013, these removal costs of $958 million and $941 million, respectively, are classified as regulatory liabilities in CenterPoint Energy’s Consolidated Balance Sheets. In addition, a portion of the amount of removal costs that relate to asset retirement obligations has been reclassified from a regulatory liability to an asset retirement liability in accordance with accounting guidance for asset retirement obligations.

(f) Depreciation and Amortization Expense

Depreciation and amortization is computed using the straight-line method based on economic lives or regulatory-mandated recovery periods. Amortization expense includes amortization of regulatory assets and other intangibles.

(g) Capitalization of Interest and Allowance for Funds Used During Construction

Interest and allowance for funds used during construction (AFUDC) are capitalized as a component of projects under construction and are amortized over the assets’ estimated useful lives once the assets are placed in service. AFUDC represents the composite interest cost of borrowed funds and a reasonable return on the equity funds used for construction for subsidiaries that apply the guidance for accounting for regulated operations. During 2014, 2013 and 2012, CenterPoint Energy capitalized interest and AFUDC of $11 million, $11 million and $9 million, respectively. During 2014, 2013 and 2012, CenterPoint Energy recorded AFUDC equity of $14 million, $8 million and $6 million, respectively, which is included in Other Income in its Statements of Consolidated Income.

(h) Income Taxes

CenterPoint Energy uses the asset and liability method of accounting for deferred income taxes. Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. A valuation allowance is established against deferred tax assets for which management believes realization is not considered to be more likely than not. CenterPoint Energy recognizes interest and penalties as a component of income tax expense.

(i) Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are recorded at the invoiced amount and do not bear interest. It is the policy of management to review the outstanding accounts receivable monthly, as well as the bad debt write-offs experienced in the past, and establish an allowance for doubtful accounts. Account balances are charged off against the allowance when management determines it is probable the receivable will not be recovered. The provision for doubtful accounts in CenterPoint Energy’s Statements of Consolidated Income for 2014, 2013 and 2012 was $22 million, $21 million and $16 million, respectively.

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(j) Inventory

Inventory consists principally of materials and supplies and natural gas. Materials and supplies are valued at the lower of average cost or market.  Materials and supplies are recorded to inventory when purchased and subsequently charged to expense or capitalized to plant when installed. Natural gas inventories of CenterPoint Energy’s Energy Services business segment are valued at the lower of average cost or market. Natural gas inventories of CenterPoint Energy’s Natural Gas Distribution business segment are primarily valued at weighted average cost. During 2014, 2013 and 2012, CenterPoint Energy recorded $8 million, $4 million and $4 million, respectively, in write-downs of natural gas inventory to the lower of average cost or market.

	December 31,
	2014		2013
Materials and supplies	$	168	$	140
Natural gas	211		145
Total inventory	$	379	$	285

(k) Derivative Instruments

CenterPoint Energy is exposed to various market risks. These risks arise from transactions entered into in the normal course of business.  CenterPoint Energy utilizes derivative instruments such as physical forward contracts, swaps and options to mitigate the impact of changes in commodity prices and weather on its operating results and cash flows. Such derivatives are recognized in CenterPoint Energy’s Consolidated Balance Sheets at their fair value unless CenterPoint Energy elects the normal purchase and sales exemption for qualified physical transactions. A derivative may be designated as a normal purchase or normal sale if the intent is to physically receive or deliver the product for use or sale in the normal course of business.

CenterPoint Energy has a Risk Oversight Committee composed of corporate and business segment officers that oversees all commodity price, weather and credit risk activities, including CenterPoint Energy’s marketing, risk management services and hedging activities. The committee’s duties are to establish CenterPoint Energy’s commodity risk policies, allocate board-approved commercial risk limits, approve the use of new products and commodities, monitor positions and ensure compliance with CenterPoint Energy’s risk management policies and procedures and limits established by CenterPoint Energy’s board of directors.

CenterPoint Energy’s policies prohibit the use of leveraged financial instruments. A leveraged financial instrument, for this purpose, is a transaction involving a derivative whose financial impact will be based on an amount other than the notional amount or volume of the instrument.

(l) Investments in Other Debt and Equity Securities

CenterPoint Energy reports securities classified as trading at estimated fair value in its Consolidated Balance Sheets, and any unrealized holding gains and losses are recorded as other income (expense) in its Statements of Consolidated Income.

(m) Environmental Costs

CenterPoint Energy expenses or capitalizes environmental expenditures, as appropriate, depending on their future economic benefit. CenterPoint Energy expenses amounts that relate to an existing condition caused by past operations that do not have future economic benefit. CenterPoint Energy records undiscounted liabilities related to these future costs when environmental assessments and/or remediation activities are probable and the costs can be reasonably estimated.

(n) Statements of Consolidated Cash Flows

For purposes of reporting cash flows, CenterPoint Energy considers cash equivalents to be short-term, highly-liquid investments with maturities of three months or less from the date of purchase. In connection with the issuance of transition bonds and system restoration bonds, CenterPoint Energy was required to establish restricted cash accounts to collateralize the bonds that were issued in these financing transactions. These restricted cash accounts are not available for withdrawal until the maturity of the bonds and are not included in cash and cash equivalents. These restricted cash accounts of $47 million and $41 million at December 31, 2014 and 2013, respectively, are included in other current assets in CenterPoint Energy’s Consolidated Balance Sheets. Cash and cash equivalents included $290 million and $207 million at December 31, 2014 and 2013, respectively, that

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was held by CenterPoint Energy’s transition and system restoration bond subsidiaries solely to support servicing the transition and system restoration bonds.

CenterPoint Energy considers distributions received from equity method investments which do not exceed cumulative equity in earnings subsequent to the date of investment to be a return on investment and classifies these distributions as operating activities in the Statements of Consolidated Cash Flows. CenterPoint Energy considers distributions received from equity method investments in excess of cumulative equity in earnings subsequent to the date of investment to be a return of investment and classifies these distributions as investing activities in the Statements of Consolidated Cash Flows.

(o) New Accounting Pronouncements

In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (ASU 2014-08), which significantly changes the existing accounting guidance on discontinued operations. Under ASU 2014-08, only those disposals of components of an entity that represent a strategic shift that has (or will have) a major effect on an entity’s operations and financial results should be reported as a discontinued operation.  ASU 2014-08 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2014.  ASU 2014-08 should be applied to components classified as held for sale after its effective date. Early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The adoption is expected to reduce the number of disposals that meet the definition of a discontinued operation.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (ASU 2014-09), which supersedes most current revenue recognition guidance. ASU 2014-09 provides a comprehensive new revenue recognition model that requires revenue to be recognized in a manner that depicts the transfer of goods or services to a customer at an amount that reflects the consideration expected to be received in exchange for those goods or services. ASU 2014-09 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. Early adoption is not permitted, and entities have the option of using either a full retrospective or a modified retrospective adoption approach. Accordingly, CenterPoint Energy will adopt ASU 2014-09 on January 1, 2017, and is currently evaluating the impact that this standard will have on its financial position, results of operations, cash flows and disclosures.

In November 2014, the FASB issued ASU No. 2014-16, Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity (ASU 2014-16).  ASU 2014-16 clarifies how current guidance should be interpreted in evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. Specifically, the amendments clarify that an entity should consider all relevant terms and features, including the embedded derivative feature being evaluated for bifurcation, in evaluating the nature of a host contract. ASU 2014-16 is effective for fiscal years and interim periods beginning after December 15, 2015. CenterPoint Energy is currently assessing the impact, if any, that this standard will have on its financial position, results of operations, cash flows and disclosures.

In January 2015, the FASB issued ASU No. 2015-01, Income Statement-Extraordinary and Unusual Items (Subtopic 225-20)-Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items (ASU 2015-01), which eliminates the concept of extraordinary items. ASU 2015-01 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015, and may be applied either prospectively or retrospectively. CenterPoint Energy will adopt ASU 2015-01 on January 1, 2016 and does not anticipate the adoption to have a material impact on its consolidated financial statements.

Management believes that other recently issued standards, which are not yet effective, will not have a material impact on CenterPoint Energy’s consolidated financial position, results of operations or cash flows upon adoption.

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(3) Property, Plant and Equipment

(a) Property, Plant and Equipment

Property, plant and equipment includes the following:

	Weighted Average Useful Lives	December 31,
	(Years)	2014		2013
		(in millions)
Electric Transmission & Distribution	31	$	9,393	$	8,741
Natural Gas Distribution	33	5,235		4,694
Energy Services	27	84		82
Other property	22	646		621
Total		15,358		14,138
Accumulated depreciation and amortization:
Electric Transmission & Distribution		3,050		2,907
Natural Gas Distribution		1,493		1,324
Energy Services		31		28
Other property		282		286
Total accumulated depreciation and amortization		4,856		4,545
Property, plant and equipment, net		$	10,502	$	9,593

(b) Depreciation and Amortization

The following table presents depreciation and amortization expense for 2014, 2013 and 2012 (in millions).

	2014		2013		2012
Depreciation expense	$	521	$	531	$	562
Amortization expense	492		423		488
Total depreciation and amortization expense	$	1,013	$	954	$	1,050

(c) Asset Retirement Obligations

A reconciliation of the changes in the asset retirement obligation (ARO) liability is as follows (in millions):

	December 31,
	2014		2013
Beginning balance	$	134	$	164
Accretion expense	5		5
Revisions in estimates of cash flows	37		(35		)
Ending balance	$	176	$	134

CenterPoint Energy recorded asset retirement obligations associated with the removal of asbestos and asbestos-containing material in its buildings, including substation building structures. CenterPoint Energy also recorded asset retirement obligations relating to gas pipelines abandoned in place, treated wood poles for electric distribution, distribution transformers containing PCB (also known as Polychlorinated Biphenyl), and underground fuel storage tanks. The estimates of future liabilities were developed using historical information, and where available, quoted prices from outside contractors.

The increase of $37 million in the ARO from the revision of estimate in 2014 is primarily attributable to a reduction of the estimated service lives of steel and plastic pipe. The decrease of $35 million in the ARO from the revision of estimate in 2013 is primarily attributable to a decrease in the future expected cash flows associated with the retirement of steel pipe.

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(4)       Goodwill

Goodwill by reportable business segment as of both December 31, 2014 and 2013 are as follows (in millions):

Natural Gas Distribution	$	746
Energy Services (1)	83
Other	11
Total	$	840

(1) Amounts presented are net of accumulated goodwill impairment charge of $252 million.

CenterPoint Energy performs its goodwill impairment tests at least annually and evaluates goodwill when events or changes in circumstances indicate that its carrying value may not be recoverable. The impairment evaluation for goodwill is performed by using a two-step process. In the first step, the fair value of each reporting unit, which approximate the reportable business segments, is compared with the carrying amount of the reporting unit, including goodwill. The estimated fair value of the reporting unit is generally determined on the basis of discounted cash flows. If the estimated fair value of the reporting unit is less than the carrying amount of the reporting unit, then a second step must be completed in order to determine the amount of the goodwill impairment that should be recorded. In the second step, the implied fair value of the reporting unit’s goodwill is determined by allocating the reporting unit’s fair value to all of its assets and liabilities other than goodwill (including any unrecognized intangible assets) in a manner similar to a purchase price allocation. The resulting implied fair value of the goodwill that results from the application of this second step is then compared to the carrying amount of the goodwill and an impairment charge is recorded for the difference.

CenterPoint Energy performed its annual impairment test in the third quarter of each of 2014 and 2013 and determined, based on the results of the first step, that no impairment charge was required for any reportable segment. Other intangibles were not material as of December 31, 2014 and 2013.

CenterPoint Energy’s annual impairment test in the third quarter of 2012 resulted in a non-cash goodwill impairment charge in the amount of $252 million for the Energy Services reportable segment. The Energy Services reporting unit fair value analysis resulted in an implied fair value of goodwill of $83 million for this reporting unit, and as a result, the non-cash impairment charge was recorded in the third quarter of 2012. The adverse wholesale market conditions facing CenterPoint Energy’s Energy Services business, specifically the prospects for continued low geographic and seasonal price differentials for natural gas, led to a reduction in the estimate of the fair value of goodwill associated with this reporting unit.

CenterPoint Energy estimated the value of the Energy Services reporting unit using an income approach. Under this approach, the fair value of the reporting unit is determined by using the present value of future expected cash flows, which are based on management projections of revenue growth, gross margin, and overall market conditions. These estimated future cash flows are then discounted using a rate that approximates the weighted average cost of capital of a market participant.

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(5) Regulatory Accounting

The following is a list of regulatory assets/liabilities reflected on CenterPoint Energy’s Consolidated Balance Sheets as of December 31, 2014 and 2013:

	December 31,
	2014			2013
	(in millions)
Securitized regulatory assets	$	2,738		$	3,179
Unrecognized equity return (1)	(442		)	(508		)
Unamortized loss on reacquired debt	104			111
Pension and postretirement-related regulatory asset (2)	922			732
Other long-term regulatory assets (3)	205			212
Total regulatory assets	3,527			3,726
Estimated removal costs	958			941
Other long-term regulatory liabilities	248			211
Total regulatory liabilities	1,206			1,152
Total regulatory assets and liabilities, net	$	2,321		$	2,574

(1) As of December 31, 2014, CenterPoint Energy has not recognized an allowed equity return of $442 million because such return will be recognized as it is recovered in rates through 2024. During the years ended December 31, 2014, 2013 and 2012, CenterPoint Houston recognized approximately $68 million, $45 million and $47 million, respectively, of the allowed equity return. The timing of CenterPoint Energy’s recognition of the allowed equity return will vary each period based on amounts actually collected during the period. The actual amounts recovered for the allowed equity return are reviewed and adjusted at least annually by the Texas Utility Commission to correct any over-collections or under-collections during the preceding 12 months and to provide for the full and timely recovery of the allowed equity return.

(2) CenterPoint Houston’s actuarially determined pension and other postemployment expense in excess of the amount being recovered through rates is being deferred for rate making purposes. Deferred pension and other postemployment expenses of $-0- and $5 million as of December 31, 2014 and 2013, respectively, were not earning a return.

(3) Other regulatory assets that are not earning a return were not material as of December 31, 2014 and 2013.

(6) Stock-Based Incentive Compensation Plans and Employee Benefit Plans

(a) Stock-Based Incentive Compensation Plans

CenterPoint Energy has long-term incentive plans (LTIPs) that provide for the issuance of stock-based incentives, including stock options, performance awards, restricted stock unit awards and restricted and unrestricted stock awards to officers, employees and non-employee directors.  Approximately 14 million shares of CenterPoint Energy common stock are authorized under these plans for awards.

Equity awards are granted to employees without cost to the participants. The performance awards granted in 2014, 2013 and 2012 are distributed based upon the achievement of certain objectives over a three-year performance cycle. The stock awards granted in 2014 are service based. The stock awards granted in 2013 and 2012 are subject to the performance condition that total common dividends declared during the three-year vesting period must be at least $2.49 and $2.43 per share, respectively. The stock awards generally vest at the end of a three-year period. Upon vesting, both the performance and stock awards are issued to the participants along with the value of dividend equivalents earned over the performance cycle or vesting period. CenterPoint Energy issues new shares in order to satisfy stock-based payments related to LTIPs.

CenterPoint Energy recorded LTIP compensation expense of $18 million, $19 million and $18 million for the years ended December 31, 2014, 2013 and 2012, respectively.  This expense is included in Operation and Maintenance Expense in the Statements of Consolidated Income.

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The total income tax benefit recognized related to LTIPs was $7 million for each of the years ended December 31, 2014, 2013 and 2012. No compensation cost related to LTIPs was capitalized as a part of inventory or fixed assets in 2014, 2013 or 2012. The actual tax benefit realized for tax deductions related to LTIPs totaled $13 million, $13 million and $14 million for 2014, 2013 and 2012, respectively.

Compensation costs for the performance and stock awards granted under LTIPs are measured using fair value and expected achievement levels on the grant date.  For performance awards with operational goals, the achievement levels are revised as goals are evaluated. The fair value of awards granted to employees is based on the closing stock price of CenterPoint Energy’s common stock on the grant date.  The compensation expense is recorded on a straight-line basis over the vesting period.  Forfeitures are estimated on the date of grant based on historical averages, and estimates are updated periodically throughout the vesting period.  

The following tables summarize CenterPoint Energy’s LTIP activity for 2014:

Stock Options

	Outstanding Options
	Year Ended December 31, 2014
	Shares (Thousands)		Weighted-Average Exercise Price		Remaining Average Contractual Life (Years)	Aggregate Intrinsic Value (Millions)
Outstanding at December 31, 2013	120		$	10.93
Exercised	(120	)	10.93
Outstanding at December 31, 2014	—		—		—	$	—
Exercisable at December 31, 2014	—		—		—	—

Cash received from stock options exercised was $1 million, $3 million and $3 million for 2014, 2013 and 2012, respectively.

CenterPoint Energy has not issued stock options since 2004.

Performance Awards

	Outstanding and Non-Vested Shares
	Year Ended December 31, 2014
	Shares (Thousands)		Weighted-Average Grant Date Fair Value		Remaining Average Contractual Life (Years)	Aggregate Intrinsic Value (Millions)
Outstanding at December 31, 2013	2,703		$	18.17
Granted	1,198		23.70
Forfeited or cancelled	(515	)	21.09
Vested and released to participants	(926	)	15.50
Outstanding at December 31, 2014	2,460		21.26		1.1	$	40

The outstanding and non-vested shares displayed in the table above assumes that shares are issued at the maximum performance level. The aggregate intrinsic value reflects the impact of current expectations of achievement and stock price.

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Stock Awards

	Outstanding and Non-Vested Shares
	Year Ended December 31, 2014
	Shares (Thousands)		Weighted-Average Grant Date Fair Value		Remaining Average Contractual Life (Years)	Aggregate Intrinsic Value (Millions)
Outstanding at December 31, 2013	898		$	18.72
Granted	322		23.89
Forfeited or cancelled	(122	)	21.60
Vested and released to participants	(375	)	17.03
Outstanding at December 31, 2014	723		21.41		1.0	$	17

The weighted-average grant-date fair values per unit of awards granted were as follows for 2014, 2013 and 2012:

	Year Ended December 31,
	2014		2013		2012
Performance awards	$	23.70	$	20.67	$	18.79
Stock awards	23.89		21.53		18.96

Valuation Data

The total intrinsic value of awards received by participants was as follows for 2014, 2013 and 2012:

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Stock options exercised	$	2	$	4	$	6
Performance awards	24		20		24
Stock awards	10		10		9

The total grant date fair value of performance and stock awards which vested during the years ended December 31, 2014, 2013 and 2012 was $21 million, $19 million and $19 million, respectively.  As of December 31, 2014, there was $17 million of total unrecognized compensation cost related to non-vested performance and stock awards which is expected to be recognized over a weighted-average period of 1.6 years.

(b) Pension and Postretirement Benefits

CenterPoint Energy maintains a non-contributory qualified defined benefit pension plan covering substantially all employees, with benefits determined using a cash balance formula. Under the cash balance formula, participants accumulate a retirement benefit based upon 5% of eligible earnings and accrued interest. Participants are 100% vested in their benefit after completing three years of service. In addition to the non-contributory qualified defined benefit pension plan, CenterPoint Energy maintains unfunded non-qualified benefit restoration plans which allow participants to receive the benefits to which they would have been entitled under CenterPoint Energy’s non-contributory pension plan except for federally mandated limits on qualified plan benefits or on the level of compensation on which qualified plan benefits may be calculated.

CenterPoint Energy provides certain healthcare and life insurance benefits for retired employees on both a contributory and non-contributory basis. Employees become eligible for these benefits if they have met certain age and service requirements at retirement, as defined in the plans. Under plan amendments, effective in early 1999, healthcare benefits for future retirees were changed to limit employer contributions for medical coverage.

Such benefit costs are accrued over the active service period of employees. The net unrecognized transition obligation is being amortized over approximately 20 years.

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CenterPoint Energy’s net periodic cost includes the following components relating to pension, including the benefit restoration plan, and postretirement benefits:

	Year Ended December 31,
	2014						2013						2012
	Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits
	(in millions)
Service cost	$	42		$	2		$	44		$	2		$	35		$	1
Interest cost	100			22			90			20			100			23
Expected return on plan assets	(125		)	(7		)	(135		)	(7		)	(121		)	(7		)
Amortization of prior service cost (credit)	10			(1		)	10			1			8			3
Amortization of net loss	44			1			63			6			60			4
Amortization of transition obligation	—			5			—			7			—			7
Benefit enhancement	—			—			—			—			—			1
Curtailment (1)	6			—			—			—			—			—
Net periodic cost	$	77		$	22		$	72		$	29		$	82		$	32

(1) During the fourth quarter of 2014, CenterPoint Energy recognized a curtailment pension loss of $6 million related to employees seconded to Enable. Substantially all of the seconded employees became employees of Enable effective January 1, 2015.

CenterPoint Energy used the following assumptions to determine net periodic cost relating to pension and postretirement benefits:

	Year Ended December 31,
	2014				2013				2012
	Pension Benefits		Post-retirement Benefits		Pension Benefits		Post-retirement Benefits		Pension Benefits		Post-retirement Benefits
Discount rate	4.80	%	4.75	%	4.00	%	3.90	%	4.90	%	4.80	%
Expected return on plan assets	7.00		5.50		8.00		5.50		8.00		5.50
Rate of increase in compensation levels	3.90		—		4.00		—		4.20		—

In determining net periodic benefits cost, CenterPoint Energy uses fair value, as of the beginning of the year, as its basis for determining expected return on plan assets.

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The following table summarizes changes in the benefit obligation, plan assets, the amounts recognized in consolidated balance sheets and the key assumptions of CenterPoint Energy’s pension, including benefit restoration, and postretirement plans. The measurement dates for plan assets and obligations were December 31, 2014 and 2013.

	December 31,
	2014						2013
	Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits
	(in millions, except for actuarial assumptions)
Change in Benefit Obligation
Benefit obligation, beginning of year	$	2,153		$	476		$	2,316		$	538
Service cost	42			2			44			2
Interest cost	100			22			90			20
Participant contributions	—			7			—			7
Benefits paid	(156		)	(32		)	(142		)	(34		)
Actuarial (gain) loss	264			52			(155		)	(60		)
Medicare reimbursement	—			3			—			3
Plan amendment	—			1			—			—
Curtailment	—			(2		)	—			—
Benefit obligation, end of year	2,403			529			2,153			476
Change in Plan Assets
Fair value of plan assets, beginning of year	1,803			140			1,698			139
Employer contributions	97			18			91			19
Participant contributions	—			7			—			7
Benefits paid	(156		)	(32		)	(142		)	(34		)
Actual investment return	181			8			156			9
Fair value of plan assets, end of year	1,925			141			1,803			140
Funded status, end of year	$	(478	)	$	(388	)	$	(350	)	$	(336	)
Amounts Recognized in Balance Sheets
Current liabilities-other	$	(31	)	$	(9	)	$	(9	)	$	(9	)
Other liabilities-benefit obligations	(447		)	(379		)	(341		)	(327		)
Net liability, end of year	$	(478	)	$	(388	)	$	(350	)	$	(336	)
Actuarial Assumptions
Discount rate	4.05		%	3.90		%	4.80		%	4.75		%
Expected return on plan assets	6.50			5.20			7.00			5.50
Rate of increase in compensation levels	4.00			—			3.90			—
Healthcare cost trend rate assumed for the next year - Pre-65	—			7.25			—			7.00
Healthcare cost trend rate assumed for the next year - Post-65	—			8.50			—			7.50
Prescription drug cost trend rate assumed for the next year	—			6.50			—			7.00
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	—			5.00			—			5.50
Year that the healthcare rate reaches the ultimate trend rate	—			2024			—			2018
Year that the prescription drug rate reaches the ultimate trend rate	—			2024			—			2018

The accumulated benefit obligation for all defined benefit pension plans was $2,371 million and $2,123 million as of December 31, 2014 and 2013, respectively.

The expected rate of return assumption was developed using the targeted asset allocation of CenterPoint Energy’s plans and the expected return for each asset class.

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The discount rate assumption was determined by matching the projected cash flows of CenterPoint Energy’s plans against a hypothetical yield curve of high-quality corporate bonds represented by a series of annualized individual discount rates from one-half to 99 years.

For measurement purposes, medical costs are assumed to increase 7.25% and 8.50% for the pre-65 and post-65 retirees during 2015, respectively, and the prescription cost is assumed to increase 6.50% during 2015, after which these rates decrease until reaching the ultimate trend rate of 5.00% in 2024.

CenterPoint Energy’s changes in accumulated comprehensive loss related to defined benefit, postretirement and other postemployment plans are as follows (in millions):

	Year Ended December 31,
	2014			2013
Beginning Balance	$	(88	)	$	(132	)
Other comprehensive income (loss) before reclassifications (1)	(3		)	52
Amounts reclassified from accumulated other comprehensive income:
Prior service cost (2)	2			3
Actuarial losses (2)	9			14
Total reclassifications from accumulated other comprehensive income	11			17
Tax expense	(5		)	(25		)
Net current period other comprehensive income	3			44
Ending Balance	$	(85	)	$	(88	)

________________

(1) Total other comprehensive income (loss) related to the re-measurement of pension, postretirement and other postemployment plans.

(2) These accumulated other comprehensive components are included in the computation of net periodic cost.

Amounts recognized in accumulated other comprehensive loss consist of the following:

	December 31,
	2014				2013
	Pension Benefits		Postretirement Benefits		Pension Benefits		Postretirement Benefits
	(in millions)
Unrecognized actuarial loss	$	113	$	14	$	126	$	7
Unrecognized prior service cost	4		2		12		1
Net amount recognized in accumulated other comprehensive loss	$	117	$	16	$	138	$	8

The changes in plan assets and benefit obligations recognized in other comprehensive income during 2014 are as follows (in millions):

	Pension Benefits		Postretirement Benefits
Net gain (loss)	$	10	$	(6	)
Amortization of net loss (gain)	9		(1		)
Amortization of prior service credit (cost)	2		(1		)
Total recognized in comprehensive income	$	21	$	(8	)

The total expense recognized in net periodic costs and other comprehensive income was $56 million and $30 million for pension and postretirement benefits, respectively, for the year ended December 31, 2014.

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The amounts in accumulated other comprehensive loss expected to be recognized as components of net periodic benefit cost during 2015 are as follows (in millions):

	Pension Benefits		Postretirement Benefits
Unrecognized actuarial loss	$	12	$	1
Unrecognized prior service cost	1		—
Amounts in accumulated comprehensive loss to be recognized in net periodic cost in 2015	$	13	$	1

The following table displays pension benefits related to CenterPoint Energy’s pension plans that have accumulated benefit obligations in excess of plan assets:

	December 31,
	2014				2013
	Pension Qualified		Pension Non-qualified		Pension Qualified		Pension Non-qualified
	(in millions)
Accumulated benefit obligation	$	2,273	$	98	$	2,031	$	92
Projected benefit obligation	2,304		98		2,061		92
Fair value of plan assets	1,925		—		1,803		—

Assumed healthcare cost trend rates have a significant effect on the reported amounts for CenterPoint Energy’s postretirement benefit plans. A 1% change in the assumed healthcare cost trend rate would have the following effects:

	1% Increase		1% Decrease
	(in millions)
Effect on the postretirement benefit obligation	$	19	$	16
Effect on total of service and interest cost	1		1

In managing the investments associated with the benefit plans, CenterPoint Energy’s objective is to achieve and maintain a fully funded plan.  This objective is  expected to be achieved through an investment strategy that manages liquidity requirements while maintaining a long-term horizon in making investment decisions and efficient and effective management of plan assets.

As part of the investment strategy discussed above, CenterPoint Energy maintained the following weighted average allocation targets for its benefit plans as of December 31, 2014:

	Pension Benefits	Postretirement Benefits
U.S. equity	12 – 28%	14 – 24%
International developed market equity	7 – 17%	3 – 13%
Emerging market equity	3 – 13%	—
Fixed income	54 – 66%	68 – 78%
Cash	0 – 2%	0 – 2%

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The following tables set forth by level, within the fair value hierarchy (see Note 8), CenterPoint Energy’s pension plan assets at fair value as of December 31, 2014 and 2013:

	Fair Value Measurements at December 31, 2014
	(in millions)
	Total			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	6		$	6		$	—	$	—
Common collective trust funds (1)	1,108			—			1,108		—
Corporate bonds:
Investment grade or above	368			—			368		—
Equity securities:
International companies	49			49			—		—
U.S. companies	83			83			—		—
Cash received as collateral from securities lending	86			86			—		—
U.S. treasuries	47			47			—		—
Mortgage backed securities	4			—			4		—
Asset backed securities	4			—			4		—
Municipal bonds	79			—			79		—
Mutual funds (2)	161			161			—		—
International government bonds	15			—			15		—
Real estate	1			—			—		1
Obligation to return cash received as collateral from securities lending	(86		)	(86		)	—		—
Total	$	1,925		$	346		$	1,578	$	1

(1) 61% of the amount invested in common collective trust funds is in fixed income securities, 14% is in U.S. equities, 22% is in international equities and 3% is in emerging market equities.

(2) 57% of the amount invested in mutual funds is in international equities, 30% is in emerging market equities and 13% is in U.S. equities.

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	Fair Value Measurements at December 31, 2013
	(in millions)
	Total			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	11		$	11		$	—	$	—
Common collective trust funds (1)	1,107			—			1,107		—
Corporate bonds:
Investment grade or above	256			—			256		—
Equity securities:
International companies	75			75			—		—
U.S. companies	77			77			—		—
Cash received as collateral from securities lending	71			71			—		—
U.S. government backed agencies bonds	1			1			—		—
U.S. treasuries	18			18			—		—
Mortgage backed securities	7			—			7		—
Asset backed securities	6			—			6		—
Municipal bonds	61			—			61		—
Mutual funds (2)	172			172			—		—
International government bonds	11			—			11		—
Real estate	1			—			—		1
Obligation to return cash received as collateral from securities lending	(71		)	(71		)	—		—
Total	$	1,803		$	354		$	1,448	$	1

(1) 50% of the amount invested in common collective trust funds is in fixed income securities, 20% is in U.S. equities, 25% is in international equities and 5% is in emerging market equities.

(2) 58% of the amount invested in mutual funds is in international equities, 30% is in emerging market equities and 12% is in U.S. equities.

The pension plan utilized both exchange traded and over-the-counter financial instruments such as futures, interest rate options and swaps that were marked to market daily with the gains/losses settled in the cash accounts. The pension plan did not include any holdings of CenterPoint Energy common stock as of December 31, 2014 or 2013.

The changes in the fair value of the pension plan’s level 3 investments for the years ended December 31, 2014 and 2013 were not material.

The following tables present by level, within the fair value hierarchy, CenterPoint Energy’s postretirement plan assets at fair value as of December 31, 2014 and 2013, by asset category:

	Fair Value Measurements at December 31, 2014
	(in millions)
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Mutual funds (1)	$	141	$	141	$	—	$	—
Total	$	141	$	141	$	—	$	—

(1) 73% of the amount invested in mutual funds is in fixed income securities, 19% is in U.S. equities and 8% is in international equities.

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	Fair Value Measurements at December 31, 2013
	(in millions)
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Mutual funds (1)	$	140	$	140	$	—	$	—
Total	$	140	$	140	$	—	$	—

(1) 72% of the amount invested in mutual funds is in fixed income securities, 20% is in U.S. equities and 8% is in international equities.

CenterPoint Energy contributed $87 million, $10 million and $18 million to its qualified pension, non-qualified pension and postretirement benefits plans, respectively, in 2014. CenterPoint Energy expects to contribute approximately $35 million, $31 million and $17 million to its qualified pension, non-qualified pension and postretirement benefits plans, respectively, in 2015.

The following benefit payments are expected to be paid by the pension and postretirement benefit plans (in millions):

			Postretirement Benefit Plan
	Pension Benefits		Benefit Payments		Medicare Subsidy Receipts
2015	$	223	$	35	$	(4	)
2016	143		36		(4		)
2017	147		38		(5		)
2018	154		40		(5		)
2019	152		42		(6		)
2020-2024	785		228		(39		)

(c) Savings Plan

CenterPoint Energy has a tax-qualified employee savings plan that includes a cash or deferred arrangement under Section 401(k) of the Internal Revenue Code of 1986, as amended (the Code), and an employee stock ownership plan (ESOP) under Section 4975(e)(7) of the Code. Under the plan, participating employees may contribute a portion of their compensation, on a pre-tax or after-tax basis, generally up to a maximum of 50% of eligible compensation. The Company matches 100% of the first 6% of each employee’s compensation contributed. The matching contributions are fully vested at all times.

Participating employees may elect to invest all or a portion of their contributions to the plan in CenterPoint Energy common stock, to have dividends reinvested in additional shares or to receive dividend payments in cash on any investment in CenterPoint Energy common stock, and to transfer all or part of their investment in CenterPoint Energy common stock to other investment options offered by the plan.

The savings plan has significant holdings of CenterPoint Energy common stock. As of December 31, 2014, 17,497,676 shares of CenterPoint Energy’s common stock were held by the savings plan, which represented approximately 20% of its investments. Given the concentration of the investments in CenterPoint Energy’s common stock, the savings plan and its participants have market risk related to this investment.

CenterPoint Energy’s savings plan benefit expenses were $39 million, $38 million and $36 million in 2014, 2013 and 2012, respectively.

(d) Postemployment Benefits

CenterPoint Energy provides postemployment benefits for former or inactive employees, their beneficiaries and covered dependents, after employment but before retirement (primarily healthcare and life insurance benefits for participants in the long-term disability plan). The Company recorded postemployment expenses of $3 million, $4 million and $8 million in 2014, 2013 and 2012, respectively.

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Included in “Benefit Obligations” in the accompanying Consolidated Balance Sheets at December 31, 2014 and 2013 was $28 million and $30 million, respectively, relating to postemployment obligations.

(e) Other Non-Qualified Plans

CenterPoint Energy has non-qualified deferred compensation plans that provide benefits payable to directors, officers and certain key employees or their designated beneficiaries at specified future dates, upon termination, retirement or death. Benefit payments are made from the general assets of CenterPoint Energy. CenterPoint Energy recorded benefit expense relating to these plans of $5 million for each of the years in 2014, 2013 and 2012. Included in “Benefit Obligations” in the accompanying Consolidated Balance Sheets at December 31, 2014 and 2013 was $60 million and $64 million, respectively, relating to deferred compensation plans.

Included in Benefit Obligations in CenterPoint Energy’s Consolidated Balance Sheets at December 31, 2014 and 2013 was $33 million and $28 million, respectively, relating to split-dollar life insurance arrangements.

(f) Change in Control Agreements and Other Employee Matters

CenterPoint Energy had change in control agreements with certain of its officers, which expired December 31, 2014.  In lieu of these agreements, our Board of Directors approved a new change in control plan, which was effective January 1, 2015.  The plan, like the expired agreements, generally provides, to the extent applicable, in the case of a change in control of CenterPoint Energy and termination of employment, for severance benefits of up to three times annual base salary plus bonus, and other benefits.  Our officers, including our Executive Chairman, are participants under the plan.

As of December 31, 2014, approximately 31% of CenterPoint Energy’s employees were subject to collective bargaining agreements. The collective bargaining agreements with the Gas Workers Local Union 340 and International Brotherhood of Electrical Workers Local 949 in Minnesota, which collectively cover approximately 8% of CenterPoint Energy’s employees, are scheduled to expire in April and December 2015, respectively. CenterPoint Energy believes it has good relationships with these bargaining units and expects to negotiate new agreements in 2015.

(7) Derivative Instruments

CenterPoint Energy is exposed to various market risks. These risks arise from transactions entered into in the normal course of business.  CenterPoint Energy utilizes derivative instruments such as physical forward contracts, swaps and options to mitigate the impact of changes in commodity prices and weather on its operating results and cash flows.

(a) Non-Trading Activities

Derivative Instruments. CenterPoint Energy enters into certain derivative instruments to manage physical commodity price risk and does not engage in proprietary or speculative commodity trading.  These financial instruments do not qualify or are not designated as cash flow or fair value hedges.

Weather Hedges. CenterPoint Energy has weather normalization or other rate mechanisms that mitigate the impact of weather on NGD in Arkansas, Louisiana, Mississippi and Oklahoma. NGD in Texas and Minnesota and electric operations in Texas do not have such mechanisms. As a result, fluctuations from normal weather may have a significant positive or negative effect on NGD’s results in Texas and Minnesota and on CenterPoint Houston’s results in its service territory.

CenterPoint Energy entered into heating-degree day swaps for certain NGD jurisdictions to mitigate the effect of fluctuations from normal weather on its results of operations and cash flows for the winter heating season, which contained a bilateral dollar cap of $15 million in 2012 - 2013, $16 million in 2013 - 2014 and $16 million in 2014 - 2015. In both 2013 and 2014, CenterPoint Energy also entered into a similar winter weather hedge for the CenterPoint Houston service territory, which each contained a bilateral dollar cap of $8 million. The swaps are based on ten-year normal weather. During the years ended December 31, 2014, 2013 and 2012, CenterPoint Energy recognized losses of $11 million, losses of $22 million and gains of $8 million, respectively, related to these swaps.  Weather hedge gains and losses are included in revenues in the Statements of Consolidated Income.

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(b) Derivative Fair Values and Income Statement Impacts

The following tables present information about CenterPoint Energy’s derivative instruments and hedging activities. The first two tables provide a balance sheet overview of CenterPoint Energy’s Derivative Assets and Liabilities as of December 31, 2014 and 2013, while the last table provides a breakdown of the related income statement impacts for the years ending December 31, 2014 and 2013.

Fair Value of Derivative Instruments
	December 31, 2014
Total derivatives not designated as hedging instruments	Balance Sheet Location	Derivative Assets Fair Value		Derivative Liabilities Fair Value
		(in millions)
Natural gas derivatives (1) (2) (3)	Current Assets: Non-trading derivative assets	$	101	$	1
Natural gas derivatives (1) (2) (3)	Other Assets: Non-trading derivative assets	32		—
Natural gas derivatives (1) (2) (3)	Current Liabilities: Non-trading derivative liabilities	14		83
Natural gas derivatives (1) (2) (3)	Other Liabilities: Non-trading derivative liabilities	2		18
Indexed debt securities derivative	Current Liabilities	—		541
Total		$	149	$	643

(1) The fair value shown for natural gas contracts is comprised of derivative gross volumes totaling 804 billion cubic feet (Bcf) or a net 60 Bcf long position.  Of the net long position, basis swaps constitute 127 Bcf.

(2) Natural gas contracts are presented on a net basis in the Consolidated Balance Sheets. Natural gas contracts are subject to master netting arrangements. This netting applies to all undisputed amounts due or past due and causes derivative assets (liabilities) to be ultimately presented net in a liability (asset) account within the Consolidated Balance Sheets. The net of total non-trading derivative assets and liabilities was a $111 million asset as shown on CenterPoint Energy’s Consolidated Balance Sheets (and as detailed in the table below), and was comprised of the natural gas contracts derivative assets and liabilities separately shown above offset by collateral netting of $64 million.

(3) Derivative Assets and Derivative Liabilities include no material amounts related to physical forward transactions with Enable.

Offsetting of Natural Gas Derivative Assets and Liabilities
	December 31, 2014
	Gross AmountsRecognized (1)			Gross Amounts Offset in the Consolidated Balance Sheets			Net Amount Presented in the Consolidated Balance Sheets (2)
	(in millions)
Current Assets: Non-trading derivative assets	$	115		$	(16	)	$	99
Other Assets: Non-trading derivative assets	34			(2		)	32
Current Liabilities: Non-trading derivative liabilities	(84		)	65			(19		)
Other Liabilities: Non-trading derivative liabilities	(18		)	17			(1		)
Total	$	47		$	64		$	111

________________

(1) Gross amounts recognized include some derivative assets and liabilities that are not subject to master netting arrangements.

(2) The derivative assets and liabilities on the Consolidated Balance Sheets exclude accounts receivable or accounts payable that, should they exist, could be used as offsets to these balances in the event of a default.

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Fair Value of Derivative Instruments
	December 31, 2013
Total derivatives not designated as hedging instruments	Balance Sheet Location	Derivative Assets Fair Value		Derivative Liabilities Fair Value
		(in millions)
Natural gas derivatives (1) (2) (3)	Current Assets: Non-trading derivative assets	$	28	$	4
Natural gas derivatives (1) (2)	Other Assets: Non-trading derivative assets	10		—
Natural gas derivatives (1) (2)	Current Liabilities: Non-trading derivative liabilities	4		21
Natural gas derivatives (1) (2)	Other Liabilities: Non-trading derivative liabilities	1		5
Indexed debt securities derivative	Current Liabilities	—		455
Total		$	43	$	485

(1) The fair value shown for natural gas contracts is comprised of derivative gross volumes totaling 607 Bcf or a net 46 Bcf long position.  Of the net long position, basis swaps constitute 99 Bcf.

(2) Natural gas contracts are presented on a net basis in the Consolidated Balance Sheets. Natural gas contracts are subject to master netting arrangements. This netting applies to all undisputed amounts due or past due and causes derivative assets (liabilities) to be ultimately presented net in a liability (asset) account within the Consolidated Balance Sheets. The net of total non-trading derivative assets and liabilities was a $13 million asset as shown on CenterPoint Energy’s Consolidated Balance Sheets (and as detailed in the table below), and was comprised of the natural gas contracts derivative assets and liabilities separately shown above, offset by collateral netting of less than $1 million.

(3) The $28 million Derivative Current Asset includes $1 million related to physical forwards purchased from Enable.

Offsetting of Natural Gas Derivative Assets and Liabilities
	December 31, 2013
	Gross AmountsRecognized (1)			Gross Amounts Offset in the Consolidated Balance Sheets			Net Amount Presented in the Consolidated Balance Sheets (2)
	(in millions)
Current Assets: Non-trading derivative assets	$	32		$	(8	)	$	24
Other Assets: Non-trading derivative assets	11			(1		)	10
Current Liabilities: Non-trading derivative liabilities	(25		)	8			(17		)
Other Liabilities: Non-trading derivative liabilities	(5		)	1			(4		)
Total	$	13		$	—		$	13

________________

(1) Gross amounts recognized include some derivative assets and liabilities that are not subject to master netting arrangements.

(2) The derivative assets and liabilities on the Consolidated Balance Sheets exclude accounts receivable or accounts payable that, should they exist, could be used as offsets to these balances in the event of a default.

For CenterPoint Energy’s price stabilization activities of the Natural Gas Distribution business segment, the settled costs of derivatives are ultimately recovered through purchased gas adjustments. Accordingly, the net unrealized gains and losses associated with these contracts are recorded as net regulatory assets. Realized and unrealized gains and losses on other derivatives are recognized in the Statements of Consolidated Income as revenue for retail sales derivative contracts and as natural gas expense for financial natural gas derivatives and non-retail related physical natural gas derivatives. Unrealized gains and losses on indexed debt securities are recorded as Other Income (Expense) in the Statements of Consolidated Income.

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Income Statement Impact of Derivative Activity
		Year Ended December 31,
Total derivatives not designated as hedging instruments	Income Statement Location	2014			2013			2011
		(in millions)
Natural gas derivatives	Gains (Losses) in Revenue	$	35		$	11		$	43
Natural gas derivatives (1) (2)	Gains (Losses) in Expense: Natural Gas	11			10			(63		)
Indexed debt securities derivative	Gains (Losses) in Other Income (Expense)	(86		)	(193		)	(71		)
Total		$	(40	)	$	(172	)	$	(91	)

(1) The Gains (Losses) in Expense: Natural Gas includes $2 million and $(2) million during the years ended December 31, 2014 and 2013, respectively, related to physical forwards purchased from Enable.

(2) The Gains (Losses) in Expense: Natural Gas includes $-0-, $-0- and $(38) million of costs in 2014, 2013 and 2012, respectively, associated with price stabilization activities of the Natural Gas Distribution business segment that will be ultimately recovered through purchased gas adjustments.

(c) Credit Risk Contingent Features

CenterPoint Energy enters into financial derivative contracts containing material adverse change provisions.  These provisions could require CenterPoint Energy to post additional collateral if the Standard & Poor’s Ratings Services or Moody’s Investors Service, Inc. credit ratings of CenterPoint Energy, Inc. or its subsidiaries are downgraded.  The total fair value of the derivative instruments that contain credit risk contingent features that are in a net liability position at December 31, 2014 and 2013 was $2 million and $1 million, respectively.  The aggregate fair value of assets that are already posted as collateral was less than $1 million at both December 31, 2014 and 2013.  If all derivative contracts (in a net liability position) containing credit risk contingent features were triggered at December 31, 2014 and 2013, $2 million and $1 million, respectively, of additional assets would be required to be posted as collateral.

(d) Credit Quality of Counterparties

In addition to the risk associated with price movements, credit risk is also inherent in CenterPoint Energy’s non-trading derivative activities. Credit risk relates to the risk of loss resulting from non-performance of contractual obligations by a counterparty. The following table shows the composition of counterparties to the non-trading derivative assets of CenterPoint Energy as of December 31, 2014 and 2013 (in millions):

	December 31, 2014				December 31, 2013
	Investment Grade(1)		Total		Investment Grade(1)		Total
Energy marketers	$	2	$	4	$	1	$	4
Financial institutions	—		—		1		9
End users (2)	2		127		1		21
Total	$	4	$	131	$	3	$	34

(1) “Investment grade” is primarily determined using publicly available credit ratings and considers credit support (including parent company guarantees) and collateral (including cash and standby letters of credit). For unrated counterparties, CenterPoint Energy determines a synthetic credit rating by performing financial statement analysis and considers contractual rights and restrictions and collateral.

(2) End users are comprised primarily of customers who have contracted to fix the price of a portion of their physical gas requirements for future periods.

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(8) Fair Value Measurements

Assets and liabilities that are recorded at fair value in the Consolidated Balance Sheets are categorized based upon the level of judgment associated with the inputs used to measure their value. Hierarchical levels, as defined below and directly related to the amount of subjectivity associated with the inputs to fair valuations of these assets and liabilities, are as follows:

Level 1: Inputs are unadjusted quoted prices in active markets for identical assets or liabilities at the measurement date. The types of assets carried at Level 1 fair value generally are exchange-traded derivatives and equity securities.

Level 2: Inputs, other than quoted prices included in Level 1, are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar instruments in active markets, and inputs other than quoted prices that are observable for the asset or liability. Fair value assets and liabilities that are generally included in this category are derivatives with fair values based on inputs from actively quoted markets.  A market approach is utilized to value CenterPoint Energy’s Level 2 assets or liabilities.

Level 3: Inputs are unobservable for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. Unobservable inputs reflect CenterPoint Energy’s judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. CenterPoint Energy develops these inputs based on the best information available, including CenterPoint Energy’s own data. A market approach is utilized to value CenterPoint Energy’s Level 3 assets or liabilities. At December 31, 2014, CenterPoint Energy’s Level 3 assets and liabilities are comprised of physical forward contracts and options. Level 3 physical forward contracts are valued using a discounted cash flow model which includes illiquid forward price curve locations (ranging from $1.60 to $4.23 per one million British thermal units (Btu)) as an unobservable input. Level 3 options are valued through Black-Scholes (including forward start) option models which include option volatilities (ranging from 0 to 88%) as an unobservable input.  CenterPoint Energy’s Level 3 derivative assets and liabilities consist of both long and short positions (forwards and options) and their fair value is sensitive to forward prices and volatilities.  If forward prices decrease, CenterPoint Energy’s long forwards lose value whereas its short forwards gain in value.  If volatility decreases, CenterPoint Energy’s long options lose value whereas its short options gain in value.

CenterPoint Energy determines the appropriate level for each financial asset and liability on a quarterly basis and recognizes transfers between levels at the end of the reporting period.  For the year ended December 31, 2014, there were no transfers between Level 1 and 2. CenterPoint Energy also recognizes purchases of Level 3 financial assets and liabilities at their fair market value at the end of the reporting period.

The following tables present information about CenterPoint Energy’s assets and liabilities (including derivatives that are presented net) measured at fair value on a recurring basis as of December 31, 2014 and 2013, and indicate the fair value hierarchy of the valuation techniques utilized by CenterPoint Energy to determine such fair value.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Netting Adjustments (1)			Balance at December 31, 2014
	(in millions)
Assets
Corporate equities	$	932	$	—	$	—	$	—		$	932
Investments, including money market funds	54		—		—		—			54
Natural gas derivatives (2)	7		122		20		(18		)	131
Total assets	$	993	$	122	$	20	$	(18	)	$	1,117
Liabilities
Indexed debt securities derivative	$	—	$	541	$	—	$	—		$	541
Natural gas derivatives (2)	22		77		3		(82		)	20
Total liabilities	$	22	$	618	$	3	$	(82	)	$	561

(1) Amounts represent the impact of legally enforceable master netting arrangements that allow CenterPoint Energy to settle positive and negative positions and also include cash collateral of $64 million posted with the same counterparties.

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(2) Natural gas derivatives include no material amounts related to physical forward transactions with Enable.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Netting Adjustments (1)			Balance at December 31, 2013
	(in millions)
Assets
Corporate equities	$	770	$	—	$	—	$	—		$	770
Investments, including money market funds	61		—		—		—			61
Natural gas derivatives (2)	5		33		5		(9		)	34
Total assets	$	836	$	33	$	5	$	(9	)	$	865
Liabilities
Indexed debt securities derivative	$	—	$	455	$	—	$	—		$	455
Natural gas derivatives	1		27		2		(9		)	21
Total liabilities	$	1	$	482	$	2	$	(9	)	$	476

(1) Amounts represent the impact of legally enforceable master netting arrangements that allow CenterPoint Energy to settle positive and negative positions and also include cash collateral of less than $1 million posted with the same counterparties.

(2) The (Level 2) Natural gas derivative assets of $33 million include $1 million related to physical forwards purchased from Enable.

The following tables present additional information about assets or liabilities, including derivatives that are measured at fair value on a recurring basis for which CenterPoint Energy has utilized Level 3 inputs to determine fair value:

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Derivative assets and liabilities, net
	Year Ended December 31,
	2014			2013			2012
	(in millions)
Beginning balance	$	3		$	2		$	6
Total gains	14			3			3
Total settlements	1			(3		)	(6		)
Transfers out of Level 3	—			—			(1		)
Transfers into Level 3	(1		)	1			—
Ending balance (1)	$	17		$	3		$	2
The amount of total gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at the reporting date	$	16		$	2		$	1

(1) During 2014, 2013 and 2012, CenterPoint Energy did not have significant Level 3 purchases or sales.

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Estimated Fair Value of Financial Instruments

The fair values of cash and cash equivalents, investments in debt and equity securities classified as “trading” and short-term borrowings are estimated to be approximately equivalent to carrying amounts and have been excluded from the table below. The carrying amounts of non-trading derivative assets and liabilities and CenterPoint Energy’s 2.0% Zero-Premium Exchangeable Subordinated Notes due 2029 (ZENS) indexed debt securities derivative are stated at fair value and are excluded from the table below.  The fair value of each debt instrument is determined by multiplying the principal amount of each debt instrument by the market price. These assets and liabilities, which are not measured at fair value in the Condensed Consolidated Balance Sheets but for which the fair value is disclosed, would be classified as Level 1 or Level 2 in the fair value hierarchy.

	December 31, 2014				December 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(in millions)
Financial assets:
Notes receivable - affiliated companies	$	363	$	362	$	363	$	363
Financial liabilities:
Long-term debt	$	8,652	$	9,427	$	8,171	$	8,670

(9) Unconsolidated Affiliates

On May 1, 2013 (the Closing Date) CERC Corp., OGE Energy Corp. (OGE) and ArcLight Capital Partners, LLC (ArcLight) closed on the formation of Enable, and CenterPoint Energy recorded an equity method investment in Enable at the historical cost of the contributed net assets. See Note 2 for further information on the formation of Enable.

CenterPoint Energy’s maximum exposure to loss related to Enable, a VIE in which CenterPoint Energy is not the primary beneficiary, is limited to its equity investment as presented in the Consolidated Balance Sheet at December 31, 2014, CERC Corp.’s guarantee of collection of Enable’s $1.1 billion senior notes due 2019 and 2024 (Guaranteed Senior Notes) and other guarantees discussed in Note 14, CERC Corp.’s $363 million notes receivable from Enable and outstanding current accounts receivable from Enable. The $363 million of notes receivable from Enable bears interest at an annual rate of 2.10% to 2.45% and matures in 2017. CenterPoint Energy recorded interest income of $8 million and $5 million during the year ended December 31, 2014 and 2013, respectively, for interest earned on or after the Closing Date and had interest receivable from Enable of $4 million as of both December 31, 2014 and 2013 on its notes receivable from Enable.

Effective on the Closing Date, CenterPoint Energy and Enable entered into a Services Agreement, Employee Transition Agreement, Transitional Services Agreement and other agreements (collectively, Transition Agreements) whereby CenterPoint Energy agreed to provide certain support services to Enable such as accounting, legal, risk management and treasury functions for an initial term ending on April 30, 2016. Effective April 1, 2014, Enable’s general partner, CenterPoint Energy and OGE agreed to reduce certain governance related costs billed to Enable for transition services.  Effective December 31, 2014, Enable’s general partner, CenterPoint Energy and OGE agreed to terminate certain support services provided by CenterPoint Energy to Enable. CenterPoint Energy expects to terminate all remaining support services by April 2016.

CenterPoint Energy billed Enable for reimbursement of transitional services, including the costs of seconded employees, $163 million and $119 million during the years ended December 31, 2014 and 2013, respectively, under the Transition Agreements for transition services incurred on or after the Closing Date. Actual transitional services costs are recorded net of reimbursements received from Enable. CenterPoint Energy had accounts receivable from Enable of $28 million and $21 million as of December 31, 2014 and 2013, respectively, for amounts billed for transitional services, including the cost of seconded employees.

CenterPoint Energy provided seconded employees to Enable to support its operations for a term ending on December 31, 2014. Enable, at its discretion, had the right to select and offer employment to seconded employees from CenterPoint Energy. During the fourth quarter of 2014, Enable notified CenterPoint Energy that it selected seconded employees and provided employment offers to substantially all of the seconded employees from CenterPoint Energy. Substantially all of the seconded employees became employees of Enable effective January 1, 2015. See Note 6 for additional information.

On April 16, 2014, Enable completed its initial public offering (IPO) of 28,750,000 common units, at a price of $20.00 per unit, which included 3,750,000 common units sold by ArcLight pursuant to an over-allotment option that was fully exercised by the underwriters. Enable received $464 million in net proceeds from the sale of the units, after deducting underwriting fees, structuring fees and other offering costs. In connection with Enable’s IPO, a portion of CenterPoint Energy’s common units were

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converted into subordinated units, as discussed further below. Subsequent to the IPO, Enable continues to be controlled jointly by CenterPoint Energy and OGE.

As a result of Enable’s IPO, CenterPoint Energy’s limited partner interest in Enable was reduced from approximately 58.3% to approximately 54.7%. CenterPoint Energy accounted for the dilution of its investment in Enable as a result of Enable’s IPO as a failed partial sale of in-substance real estate. CenterPoint Energy did not receive any cash from Enable’s IPO and, as such, CenterPoint Energy did not recognize a gain or loss. CenterPoint Energy’s basis difference in Enable was reduced for the impact of the Enable IPO.

In accordance with the Enable formation agreements, CenterPoint Energy had certain put rights, and Enable had certain call rights, exercisable with respect to the 25.05% interest in Southeast Supply Header, LLC (SESH) retained by CenterPoint Energy on the Closing Date, under which CenterPoint Energy would contribute its retained interest in SESH, in exchange for a specified number of limited partner common units in Enable and a cash payment, payable either from CenterPoint Energy to Enable or from Enable to CenterPoint Energy, to the extent of changes in the value of SESH subject to certain restrictions. Specifically, the rights were and are exercisable with respect to (1) a 24.95% interest in SESH (24.95% Put), which closed on May 30, 2014 as discussed below and (2) a 0.1% interest in SESH, which may be exercised no earlier than June 2015 for 25,341 common units in Enable.

On May 30, 2014, CenterPoint Energy closed its 24.95% Put and contributed to Enable its 24.95% interest in SESH in exchange for 6,322,457 common units of Enable, which increased CenterPoint Energy’s limited partner interest in Enable from approximately 54.7% to approximately 55.4%. No cash payment was required to be made pursuant to the Enable formation agreements in connection with CenterPoint Energy’s exercise of the 24.95% Put. CenterPoint Energy accounted for the contribution of its 24.95% interest in SESH to Enable in exchange for common units of Enable as a non-monetary transaction of in-substance real estate equity method investments. As such, CenterPoint Energy recorded the 6,322,457 common units at the historical cost of the contributed 24.95% interest in SESH of $196 million and recorded no gain or loss in connection with its exercise of the 24.95% Put. As a result, CenterPoint Energy’s basis difference in Enable was reduced for the impact of its exercise of the 24.95% Put.

CenterPoint Energy incurred natural gas expenses, including transportation and storage costs, of $130 million and $123 million during the year ended December 31, 2014 and 2013, respectively, for transactions with Enable occurring on or after the Closing Date. CenterPoint Energy had accounts payable to Enable of $23 million and $22 million at December 31, 2014 and 2013, respectively, from such transactions.

As of December 31, 2014, CenterPoint Energy held an approximate 55.4% limited partner interest in Enable consisting of 94,126,366 common units and 139,704,916 subordinated units and a 0.1% interest in SESH. The principal difference between Enable common units and subordinated units is that in any quarter during the subordination period, holders of the subordinated units are not entitled to receive any distribution of available cash until the common units have received the minimum quarterly distribution plus any arrearages in the payment of the minimum quarterly distribution from prior quarters. If Enable does not pay distributions on its subordinated units, the subordinated units will not accrue arrearages for those unpaid distributions. At the end of the subordination period, CenterPoint Energy’s subordinated units in Enable will be converted to common units in Enable on a one-for-one basis.

CenterPoint Energy evaluates its equity method investments for impairment when factors indicate that a decrease in value of its investment has occurred and the carrying amount of its investment may not be recoverable.  An impairment loss is recognized in earnings when an impairment is deemed to be other than temporary.  The carrying value of CenterPoint Energy’s investment in Enable is $19.33 per unit. As of December 31, 2014, Enable’s common unit price closed at $19.39 (approximately $14 million above carrying value). The lowest close price for Enable’s common units in January 2015 was $17.34 (approximately $465 million below carrying value). CenterPoint Energy performed an analysis of its investment in Enable as of December 31, 2014.  Based on that analysis, CenterPoint Energy believes that the decline in the value of its investment is temporary, and that CenterPoint Energy will recover the value of its investment of $4.5 billion.

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Investment in Unconsolidated Affiliates:

	Year Ended December 31,
	2014		2013
	(in millions)
Enable	$	4,520	$	4,319
SESH (1)	1		199
Total	$	4,521	$	4,518

(1) On May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

Equity in Earnings of Unconsolidated Affiliates, net:

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Enable (1)	$	303	$	173	$	—
SESH (2)	5		15		26
Waskom (3)	—		—		5
Total	$	308	$	188	$	31

(1) On May 1, 2013, CenterPoint Energy formed Enable with OGE and ArcLight.

(2) On each of May 1, 2013 and May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

(3) On July 31, 2012, Waskom became a wholly owned subsidiary of CenterPoint Energy. Beginning on August 1, 2012, Waskom’s operating results are consolidated on the Statements of Consolidated Income. On May 1, 2013, CenterPoint Energy contributed Waskom to Enable.

Summarized consolidated income information for Enable is as follows:

	Year Ended December 31,
	2014		2013 (1)
	(in millions)
Operating revenues	$	3,367	$	2,123
Cost of sales, excluding depreciation and amortization	1,914		1,241
Operating income	586		322
Net income attributable to Enable	530		289
CenterPoint Energy’s approximate interest	$	298	$	168
Basis difference accretion	5		5
CenterPoint Energy’s equity in earnings, net	$	303	$	173

(1) The amounts included in this column represent the eight month period from formation of Enable on May 1, 2013 through December 31, 2013.

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Summarized consolidated balance sheet information for Enable is as follows:

	December 31,
	2014			2013
	(in millions)
Current assets	$	438		$	549
Non-current assets	11,399			10,683
Current liabilities	671			720
Non-current liabilities	2,343			2,331
Non-controlling interest	31			33
Enable partners’ capital	8,792			8,148
CenterPoint Energy’s ownership interest in Enable’s partner capital	$	4,869		$	4,753
CenterPoint Energy’s basis difference attributable to goodwill (1)	(217		)	(229		)
CenterPoint Energy’s accretable basis difference (2)	(132		)	(205		)
CenterPoint Energy’s total basis difference	(349		)	(434		)
CenterPoint Energy’s investment in Enable	$	4,520		$	4,319

(1) The difference relates to CenterPoint Energy’s proportionate share of Enable’s goodwill arising from its acquisition of Enogex, and therefore will be recognized by CenterPoint Energy upon dilution or disposition of its interest in Enable.

(2) The difference will be recognized by CenterPoint Energy over 30 years beginning May 1, 2013. CenterPoint Energy will also adjust the accretable basis difference for dilution or disposition of its interest in Enable.

Enable concluded that the formation of Enable is considered a business combination, and CenterPoint Midstream is the acquirer for accounting purposes.  Under this method, the fair value of the consideration paid by CenterPoint Midstream for Enogex was allocated to the assets acquired and liabilities assumed on the Closing Date based on their fair value.  Enogex’s assets, liabilities and equity were accordingly adjusted to estimated fair value as of May 1, 2013.  Determining the fair value of assets and liabilities is judgmental in nature and involves the use of significant estimates and assumptions.  Enable used appraisers to assist in the determination of the estimated fair value of certain assets and liabilities contributed by Enogex.

Distributions Received from Unconsolidated Affiliates:

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Enable (1)	$	298	$	106	$	—
SESH (2)	7		23		32
Waskom (3)	—		—		7
Total	$	305	$	129	$	39

(1) On May 1, 2013, CenterPoint Energy formed Enable with OGE and ArcLight.

(2) On each of May 1, 2013 and May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

(3) On July 31, 2012, Waskom became a wholly owned subsidiary of CenterPoint Energy. Beginning on August 1, 2012, Waskom’s operating results are consolidated on the Statements of Consolidated Income. On May 1, 2013, CenterPoint Energy contributed Waskom to Enable.

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(10) Indexed Debt Securities (ZENS) and Securities Related to ZENS

(a) Investment in Securities Related to ZENS

In 1995, CenterPoint Energy sold a cable television subsidiary to Time Warner, Inc. (TW) and received TW securities as partial consideration. A subsidiary of CenterPoint Energy now holds 7.1 million shares of TW common stock (TW Common), 1.8 million shares of Time Warner Cable Inc. (TWC) common stock (TWC Common), 0.6 million shares of AOL, Inc. (AOL) common stock (AOL Common) and 0.9 million shares of Time Inc. common stock (Time Common) (together with the TW Common, TWC Common and AOL Common, the TW Securities) which are classified as trading securities and are expected to be held to facilitate CenterPoint Energy’s ability to meet its obligation under the ZENS. Unrealized gains and losses resulting from changes in the market value of the TW Securities are recorded in CenterPoint Energy’s Statements of Consolidated Income.

(b) ZENS

In September 1999, CenterPoint Energy issued ZENS having an original principal amount of $1 billion of which $828 million remain outstanding at December 31, 2014. Each ZENS note was originally exchangeable at the holder’s option at any time for an amount of cash equal to 95% of the market value of the reference shares of TW Common attributable to such note. The number and identity of the reference shares attributable to each ZENS note are adjusted for certain corporate events. As of December 31, 2014, the reference shares for each ZENS note consisted of 0.5 share of TW Common, 0.125505 share of TWC Common and 0.045455 share of AOL Common and 0.0625 share of Time Common. On February 13, 2014, TWC announced that it had agreed to merge with Comcast Corporation (Comcast). In the merger, each share of TWC Common would be exchanged for 2.875 shares of Comcast common stock (Comcast Common). Upon the closing of the merger (assuming no change in the merger consideration), the reference shares for each ZENS note would include 0.360827 share of Comcast Common in place of the current 0.125505 share of TWC Common. CenterPoint Energy pays interest on the ZENS at an annual rate of 2% plus the amount of any quarterly cash dividends paid in respect of the reference shares attributable to the ZENS. The principal amount of ZENS is subject to being increased or decreased to the extent that the annual yield from interest and cash dividends on the reference shares is less than or more than 2.309%. The adjusted principal amount is defined in the ZENS instrument as “contingent principal.” At December 31, 2014, ZENS having an original principal amount of $828 million and a contingent principal amount of $751 million were outstanding and were exchangeable, at the option of the holders, for cash equal to 95% of the market value of reference shares deemed to be attributable to the ZENS. At December 31, 2014, the market value of such shares was approximately $930 million, which would provide an exchange amount of $1,067 for each $1,000 original principal amount of ZENS. At maturity of the ZENS in 2029, CenterPoint Energy will be obligated to pay in cash the higher of the contingent principal amount of the ZENS or an amount based on the then-current market value of the reference shares, which will include any additional publicly-traded securities distributed with respect to the current reference shares prior to maturity.

The ZENS obligation is bifurcated into a debt component and a derivative component (the holder’s option to receive the appreciated value of the reference shares at maturity). The bifurcated debt component accretes through interest charges at 17.3% annually up to the contingent principal amount of the ZENS in 2029. Such accretion will be reduced by annual cash interest payments, as described above. The derivative component is recorded at fair value and changes in the fair value of the derivative component are recorded in CenterPoint Energy’s Statements of Consolidated Income. Changes in the fair value of the TW Securities held by CenterPoint Energy are expected to substantially offset changes in the fair value of the derivative component of the ZENS.

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The following table sets forth summarized financial information regarding CenterPoint Energy’s investment in TW Securities and each component of CenterPoint Energy’s ZENS obligation (in millions). 

	TW Securities			Debt Component of ZENS			Derivative Component of ZENS
Balance at December 31, 2011	$	386		$	131		$	197
Accretion of debt component of ZENS	—			24			—
2% interest paid	—			(17		)	—
Loss on indexed debt securities	—			—			71
Gain on TW Securities	154			—			—
Balance at December 31, 2012	540			138			268
Accretion of debt component of ZENS	—			24			—
2% interest paid	—			(17		)	—
Sale of TW Securities	(9		)	—			—
Redemption of indexed debt securities	—			(2		)	(6		)
Loss on indexed debt securities	—			—			193
Gain on TW Securities	236			—			—
Balance at December 31, 2013	767			143			455
Accretion of debt component of ZENS	—			26			—
2% interest paid	—			(17		)	—
Loss on indexed debt securities	—			—			86
Gain on TW Securities	163			—			—
Balance at December 31, 2014	$	930		$	152		$	541

(11) Equity

Capital Stock

CenterPoint Energy has 1,020,000,000 authorized shares of capital stock, comprised of 1,000,000,000 shares of $0.01 par value common stock and 20,000,000 shares of $0.01 par value cumulative preferred stock.

Dividends Declared

CenterPoint Energy declared dividends per share of $0.95, $0.83 and $0.81, respectively, during the years ended December 31, 2014, 2013 and 2012.

Undistributed Retained Earnings

As of December 31, 2014 and 2013, CenterPoint Energy’s consolidated retained earnings balance includes undistributed earnings from Enable of $71 million and $67 million, respectively.

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(12) Short-term Borrowings and Long-term Debt

	December 31, 2014					December 31, 2013
	Long-Term			Current(1)		Long-Term			Current(1)
	(in millions)
Short-term borrowings:
Inventory financing	$	—		$	53	$	—		$	43
Total short-term borrowings	—			53		—			43
Long-term debt:
CenterPoint Energy:
ZENS (2)	—			152		—			143
Senior notes 5.95% to 6.85% due 2015 to 2018	550			200		750			—
Pollution control bonds 4.90% to 5.125% due 2015 to 2028 (3)	118			69		187			—
Commercial paper (4)	191			—		—			—
Other	2			2		—			—
CenterPoint Houston:
First mortgage bonds 9.15% due 2021	102			—		102			—
General mortgage bonds 2.25% to 6.95% due 2022 to 2044	1,912			—		1,312			—
Pollution control bonds 4.25% to 5.60% due 2017 to 2027	—			—		183			—
System restoration bonds 1.833% to 4.243% due 2015 to 2022	415			48		463			47
Transition bonds 0.90% to 5.302% due 2015 to 2024	2,259			324		2,583			307
Other	1			—		—			—
CERC Corp.:
Senior notes 4.50% to 6.625% due 2016 to 2041	2,168			—		2,168			—
Commercial paper (4)	341			—		118			—
Other	—			—		1			—
Unamortized discount and premium, net	(50		)	—		(50		)	—
Total long-term debt	8,009			795		7,817			497
Total debt	$	8,009		$	848	$	7,817		$	540

(1) Includes amounts due or exchangeable within one year of the date noted.

(2) CenterPoint Energy’s ZENS obligation is bifurcated into a debt component and an embedded derivative component. For additional information regarding ZENS, see Note 10(b). As ZENS are exchangeable for cash at any time at the option of the holders, these notes are classified as a current portion of long-term debt.

(3) $118 million of these series of debt were secured by general mortgage bonds of CenterPoint Houston at both December 31, 2014 and 2013.

(4) Classified as long-term debt because the termination date of the facility that backstops the commercial paper is more than one year from the date noted.

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(a) Short-term Borrowings

Inventory Financing. NGD has asset management agreements associated with its utility distribution service in Arkansas, north Louisiana and Oklahoma that extend through 2018. Pursuant to the provisions of the agreements, NGD sells natural gas and agrees to repurchase an equivalent amount of natural gas during the winter heating seasons at the same cost, plus a financing charge. These transactions are accounted for as a financing and they had an associated principal obligation of $53 million and $43 million as of December 31, 2014 and 2013, respectively.

(b) Long-term Debt

On March 17, 2014, CenterPoint Energy Houston Electric, LLC issued $600 million principal amount of 4.50% General Mortgage Bonds due 2044.

Debt Repayments. Approximately $44 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Houston were redeemed on March 3, 2014 at 101% of their principal amount plus accrued interest. The bonds had an interest rate of 4.25%, were scheduled to mature in 2017 and were collateralized by general mortgage bonds of CenterPoint Houston.

Approximately $56 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Houston were purchased by CenterPoint Houston on March 3, 2014 at 101% of their principal amount plus accrued interest pursuant to the mandatory tender provisions of the bonds. The bonds had an interest rate of 5.60% prior to CenterPoint Houston’s purchase and have a variable rate thereafter. The bonds mature in 2027 and are collateralized by general mortgage bonds of CenterPoint Houston. The purchased pollution control bonds may be remarketed.

Approximately $84 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Houston were redeemed on June 2, 2014 at 100% of their principal amount plus accrued interest. The bonds had an interest rate of 4.25%, were scheduled to mature in 2017 and were collateralized by general mortgage bonds of CenterPoint Houston.

Transition and System Restoration Bonds. As of December 31, 2014, CenterPoint Houston had special purpose subsidiaries consisting of transition and system restoration bond companies, which it consolidates. The consolidated special purpose subsidiaries are wholly owned bankruptcy remote entities that were formed solely for the purpose of purchasing and owning transition or system restoration property through the issuance of transition bonds or system restoration bonds and activities incidental thereto. These transition bonds and system restoration bonds are payable only through the imposition and collection of “transition” or “system restoration” charges, as defined in the Texas Public Utility Regulatory Act, which are irrevocable, non-bypassable charges payable by most of CenterPoint Houston’s retail electric customers in order to provide recovery of authorized qualified costs. CenterPoint Houston has no payment obligations in respect of the transition and system restoration bonds other than to remit the applicable transition or system restoration charges it collects. Each special purpose entity is the sole owner of the right to impose, collect and receive the applicable transition or system restoration charges securing the bonds issued by that entity. Creditors of CenterPoint Energy or CenterPoint Houston have no recourse to any assets or revenues of the transition and system restoration bond companies (including the transition and system restoration charges), and the holders of transition bonds or system restoration bonds have no recourse to the assets or revenues of CenterPoint Energy or CenterPoint Houston.

Credit Facilities. As of December 31, 2014 and 2013, CenterPoint Energy, CenterPoint Houston and CERC Corp. had the following revolving credit facilities and utilization of such facilities (in millions):

			December 31, 2014						December 31, 2013
	Size of Facility		Loans		Letters of Credit		Commercial Paper		Loans		Letters of Credit		Commercial Paper
CenterPoint Energy	$	1,200	$	—	$	6	$	191	$	—	$	6	$	—
CenterPoint Houston	300		—		4		—		—		4		—
CERC Corp.	600		—		—		341		—		—		118
Total	$	2,100	$	—	$	10	$	532	$	—	$	10	$	118

CenterPoint Energy’s $1.2 billion revolving credit facility, which is scheduled to terminate on September 9, 2019, can be drawn at the London Interbank Offered Rate (LIBOR) plus 1.25% based on CenterPoint Energy’s current credit ratings. The revolving credit facility contains a financial covenant which limits CenterPoint Energy’s consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of CenterPoint Energy’s consolidated capitalization. The financial covenant limit will temporarily increase from 65% to 70% if CenterPoint Houston experiences damage from a natural disaster in

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its service territory and CenterPoint Energy certifies to the administrative agent that CenterPoint Houston has incurred system restoration costs reasonably likely to exceed $100 million in a consecutive twelve-month period, all or part of which CenterPoint Houston intends to seek to recover through securitization financing. Such temporary increase in the financial covenant would be in effect from the date CenterPoint Energy delivers its certification until the earliest to occur of (i) the completion of the securitization financing, (ii) the first anniversary of CenterPoint Energy’s certification or (iii) the revocation of such certification.

CenterPoint Houston’s $300 million revolving credit facility, which is scheduled to terminate on September 9, 2019, can be drawn at LIBOR plus 1.125% based on CenterPoint Houston’s current credit ratings. The revolving credit facility contains a financial covenant which limits CenterPoint Houston’s consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of CenterPoint Houston’s consolidated capitalization.

CERC Corp.’s $600 million revolving credit facility, which is scheduled to terminate on September 9, 2019, can be drawn at LIBOR plus 1.50% based on CERC Corp.’s current credit ratings. The revolving credit facility contains a financial covenant which limits CERC’s consolidated debt to an amount not to exceed 65% of CERC’s consolidated capitalization.

CenterPoint Energy, CenterPoint Houston and CERC Corp. were in compliance with all financial debt covenants as of December 31, 2014.

Maturities.  CenterPoint Energy’s maturities of long-term debt, capital leases and sinking fund requirements, excluding the ZENS obligation, are $641 million in 2015, $716 million in 2016, $911 million in 2017, $1.1 billion in 2018 and $1.0 billion in 2019.  These maturities include transition and system restoration bond principal repayments on scheduled payment dates aggregating $372 million in 2015, $391 million in 2016, $411 million in 2017, $434 million in 2018 and $458 million in 2019.

Liens.  As of December 31, 2014, CenterPoint Houston’s assets were subject to liens securing approximately $102 million of first mortgage bonds. Sinking or improvement fund and replacement fund requirements on the first mortgage bonds may be satisfied by certification of property additions. Sinking fund and replacement fund requirements for 2014, 2013 and 2012 have been satisfied by certification of property additions. The replacement fund requirement to be satisfied in 2015 is approximately $209 million, and the sinking fund requirement to be satisfied in 2015 is approximately $1.6 million. CenterPoint Energy expects CenterPoint Houston to meet these 2015 obligations by certification of property additions. As of December 31, 2014, CenterPoint Houston’s assets were also subject to liens securing approximately $2.4 billion of general mortgage bonds which are junior to the liens of the first mortgage bonds.

(13) Income Taxes

The components of CenterPoint Energy’s income tax expense were as follows:

	Year Ended December 31,
	2014			2013			2012
	(in millions)
Current income tax expense (benefit):
Federal	$	(20	)	$	91		$	—
State	14			23			12
Total current expense (benefit)	(6		)	114			12
Deferred income tax expense (benefit):
Federal	273			370			280
State	7			(14		)	48
Total deferred expense	280			356			328
Total income tax expense	$	274		$	470		$	340

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A reconciliation of income tax expense using the federal statutory income tax rate to the actual income tax expense and resulting effective income tax rate is as follows:

	Year Ended December 31,
	2014			2013			2012
	(in millions)
Income before income taxes	$	885		$	781		$	757
Federal statutory income tax rate	35.0		%	35.0		%	35.0		%
Expected federal income tax expense	310			273			265
Increase (decrease) in tax expense resulting from:
State income tax expense, net of federal income tax	16			21			39
Amortization of investment tax credit	—			—			(2		)
Tax effect related to the formation of Enable	—			196			—
Decrease in settled and uncertain income tax positions	—			(9		)	(33		)
Goodwill impairment	—			—			88
Tax basis balance sheet adjustments	(29		)	—			—
Other, net	(23		)	(11		)	(17		)
Total	(36		)	197			75
Total income tax expense	$	274		$	470		$	340
Effective tax rate	31.0		%	60.2		%	44.9		%

In 2014, CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review.  The adjustment resulted in a decrease to deferred tax liabilities of $32 million, a decrease to income taxes payable of $5 million and a decrease to income tax regulatory assets of $8 million.  CenterPoint Energy determined the impact of the $29 million adjustment was not material to any prior period or the year ended December 31, 2014.

In 2013, CenterPoint Energy recorded a deferred tax expense of $225 million at the formation of Enable related to the book-to-tax basis difference for contributed non-tax deductible goodwill and recognized a tax benefit of $29 million associated with the remeasurement of state deferred taxes at formation. In addition, CenterPoint Energy recognized a tax benefit of $8 million based on the settlement with the Internal Revenue Service (IRS) of outstanding tax claims for the 2002 and 2003 tax years.

In 2012, CenterPoint Energy recorded a non-tax deductible impairment of goodwill of $252 million ($88 million tax effect) and a net decrease in income tax expense of $33 million related to favorable audit settlements.

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The tax effects of temporary differences that give rise to significant portions of deferred tax assets and liabilities were as follows:

	December 31,
	2014			2013
	(in millions)
Deferred tax assets:
Current:
Allowance for doubtful accounts	$	10		$	11
Deferred gas costs	—			7
Other	13			12
Total current deferred tax assets	23			30
Non-current:
Loss and credit carryforwards	69			51
Employee benefits	327			258
Other	89			76
Total non-current deferred tax assets before valuation allowance	485			385
Valuation allowance	(2		)	(2		)
Total non-current deferred tax assets, net of valuation allowance	483			383
Total deferred tax assets, net of valuation allowance	506			413
Deferred tax liabilities:
Current:
Unrealized gain on indexed debt securities	636			541
Unrealized gain on TW securities	65			97
Deferred gas costs	6			—
Total current deferred tax liabilities	707			638
Non-current:
Depreciation	2,201			1,908
Regulatory assets, net	1,228			1,308
Investment in unconsolidated affiliates	1,789			1,590
Other	21			119
Total non-current deferred tax liabilities	5,239			4,925
Total deferred tax liabilities	5,946			5,563
Accumulated deferred income taxes, net	$	5,440		$	5,150

Tax Attribute Carryforwards and Valuation Allowance.  CenterPoint Energy has $9 million of federal capital loss carryforwards which expire in 2018, $725 million of state net operating loss carryforwards which expire between 2015 and 2034, $4 million of state tax credits which do not expire, and $244 million of state capital loss carryforwards which expire in 2017 for which management established a full valuation allowance of $2 million net of federal tax. The valuation allowance was established based upon management’s evaluation that loss carryforwards may not be fully realized.

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Uncertain Income Tax Positions. The following table reconciles the beginning and ending balance of CenterPoint Energy’s unrecognized tax benefits (expenses):

	December 31,
	2014		2013			2012
	(in millions)
Balance, beginning of year	$	—	$	(23	)	$	51
Tax Positions related to prior years:
Reductions	—		(1		)	(75		)
Tax Positions related to current year:
Settlements	—		24			1
Balance, end of year	$	—	$	—		$	(23	)

CenterPoint Energy reported no uncertain tax liability as of December 31, 2014 and expects no significant change to the uncertain tax liability over the next twelve months ending December 31, 2015 to have a material impact on financial position, results of operations and cash flows.

CenterPoint Energy recognizes interest and penalties as a component of income tax expense.  CenterPoint Energy recognized $3 million of income tax expense, $3 million of income tax benefit and $7 million of income tax benefit related to interest on income tax positions during 2014, 2013 and 2012, respectively.  CenterPoint Energy had $5 million of interest receivable on income tax positions accrued at December 31, 2013.

Tax Audits and Settlements.   Tax years through 2011 have been audited and settled with the IRS. The consolidated federal income tax returns for the years 2012 and 2013 are currently under audit by the IRS. For 2014, CenterPoint Energy is a participant in the IRS’s Compliance Assurance Process. CenterPoint Energy has considered the effects of these examinations in its accrual for settled issues and liability for uncertain income tax positions as of December 31, 2014.

(14) Commitments and Contingencies

(a) Natural Gas Supply Commitments

Natural gas supply commitments include natural gas contracts related to CenterPoint Energy’s Natural Gas Distribution and Energy Services business segments, which have various quantity requirements and durations, that are not classified as non-trading derivative assets and liabilities in CenterPoint Energy’s Consolidated Balance Sheets as of December 31, 2014 and 2013 as these contracts meet an exception as “normal purchases contracts” or do not meet the definition of a derivative. Natural gas supply commitments also include natural gas transportation contracts that do not meet the definition of a derivative. As of December 31, 2014, minimum payment obligations for natural gas supply commitments are approximately $696 million in 2015, $605 million in 2016, $551 million in 2017, $507 million in 2018, $255 million in 2019 and $114 million after 2019.

(b) Asset Management Agreements

NGD has asset management agreements (AMAs) associated with its utility distribution service in Arkansas, Louisiana, Mississippi, Oklahoma and Texas. Generally, these AMAs are contracts between NGD and an asset manager that are intended to transfer the working capital obligation and maximize the utilization of the assets.  In these AMAs, NGD agreed to release transportation and storage capacity to other parties to manage gas storage, supply and delivery arrangements for NGD and to use the released capacity for other purposes when it is not needed for NGD. NGD is compensated by the asset manager through payments made over the life of the AMAs based in part on the results of the asset optimization. NGD has an obligation to purchase its winter storage requirements that have been released to the asset manager under these AMAs. The AMAs have varying terms, the longest of which expires in 2018.

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(c) Lease Commitments

The following table sets forth information concerning CenterPoint Energy’s obligations under non-cancelable long-term operating leases at December 31, 2014, which primarily consist of rental agreements for building space, data processing equipment, compression equipment and rights of way (in millions):

2015	$	5
2016	4
2017	3
2018	2
2019	2
2020 and beyond	7
Total	$	23

Total lease expense for all operating leases was $11 million, $21 million and $27 million during 2014, 2013 and 2012, respectively.

(d) Legal, Environmental and Other Regulatory Matters

Legal Matters

Gas Market Manipulation Cases.  CenterPoint Energy, CenterPoint Houston or their predecessor, Reliant Energy, Incorporated (Reliant Energy), and certain of their former subsidiaries have been named as defendants in certain lawsuits described below. Under a master separation agreement between CenterPoint Energy and a former subsidiary, Reliant Resources, Inc. (RRI), CenterPoint Energy and its subsidiaries are entitled to be indemnified by RRI and its successors for any losses, including certain attorneys’ fees and other costs, arising out of these lawsuits.  In May 2009, RRI sold its Texas retail business to a subsidiary of NRG and RRI changed its name to RRI Energy, Inc. In December 2010, Mirant Corporation merged with and became a wholly owned subsidiary of RRI, and RRI changed its name to GenOn Energy, Inc. (GenOn). In December 2012, NRG acquired GenOn through a merger in which GenOn became a wholly owned subsidiary of NRG. None of the sale of the retail business, the merger with Mirant Corporation, or the acquisition of GenOn by NRG alters RRI’s (now GenOn’s) contractual obligations to indemnify CenterPoint Energy and its subsidiaries, including CenterPoint Houston, for certain liabilities, including their indemnification obligations regarding the gas market manipulation litigation, nor does it affect the terms of existing guarantee arrangements for certain GenOn gas transportation contracts discussed below.

A large number of lawsuits were filed against numerous gas market participants in a number of federal and western state courts in connection with the operation of the natural gas markets in 2000-2002. CenterPoint Energy and its affiliates have since been released or dismissed from all but one such case. CenterPoint Energy Services, Inc. (CES), a subsidiary of CERC Corp., is a defendant in a case now pending in federal court in Nevada alleging a conspiracy to inflate Wisconsin natural gas prices in 2000-2002.  In July 2011, the court issued an order dismissing the plaintiffs’ claims against other defendants in the case, each of whom had demonstrated Federal Energy Regulatory Commission jurisdictional sales for resale during the relevant period, based on federal preemption, and stayed the remainder of the case pending outcome of the appeals.  The plaintiffs appealed this ruling to the United States Court of Appeals for the Ninth Circuit, which reversed the trial court’s dismissal of the plaintiffs’ claims. In August 2013, the other defendants filed a petition for review with the U.S. Supreme Court, which the court granted on July 1, 2014. Four amicus briefs favorable to our co-defendants were filed by the United States, Interstate Natural Gas Association of America, et. al., Washington Legal Foundation and Noble America Corporation, et. al. The Supreme Court heard arguments on January 12, 2015, and a ruling is expected by summer 2015. CenterPoint Energy believes that CES is not a proper defendant in this case and will continue to pursue a dismissal.  CenterPoint Energy does not expect the ultimate outcome of this matter to have a material adverse effect on its financial condition, results of operations or cash flows.

Environmental Matters

Manufactured Gas Plant Sites. CERC and its predecessors operated manufactured gas plants (MGPs) in the past.  There are seven MGP sites in CERC’s Minnesota service territory.  CERC believes it never owned or operated, and therefore has no liability with respect to, two of these sites.  With respect to two other sites, CERC has completed state ordered remediation, other than ongoing monitoring and water treatment.

At December 31, 2014, CERC had recorded a liability of $7 million for remediation of these Minnesota sites. The estimated range of possible remediation costs for the sites for which CERC believes it may have responsibility was $5 million to $29 million

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based on remediation continuing for 30 to 50 years. The cost estimates are based on studies of a site or industry average costs for remediation of sites of similar size. The actual remediation costs will be dependent upon the number of sites to be remediated, the participation of other potentially responsible parties (PRPs), if any, and the remediation methods used. As of December 31, 2014, CERC had collected $4 million from insurance companies to be used for future environmental remediation.

In addition to the Minnesota sites, the United States Environmental Protection Agency and other regulators have investigated MGP sites that were owned or operated by CERC or may have been owned by one of its former affiliates. CERC and CenterPoint Energy do not expect the ultimate outcome of these investigations to have a material adverse effect on the financial condition, results of operations or cash flows of either CenterPoint Energy or CERC.

Asbestos. Some facilities owned by CenterPoint Energy contain or have contained asbestos insulation and other asbestos-containing materials. CenterPoint Energy or its subsidiaries have been named, along with numerous others, as a defendant in lawsuits filed by a number of individuals who claim injury due to exposure to asbestos. Some of the claimants have worked at locations owned by subsidiaries of CenterPoint Energy, but most existing claims relate to facilities previously owned by CenterPoint Energy’s subsidiaries, some of which are currently owned by an affiliate of NRG. In 2004 and early 2005, CenterPoint Energy sold its generating business, to which most of these claims relate, to a company which is now an affiliate of NRG. Under the terms of the arrangements regarding separation of the generating business from CenterPoint Energy and its sale of that business, ultimate financial responsibility for uninsured losses from claims relating to the generating business has been assumed by the NRG affiliate, but CenterPoint Energy has agreed to continue to defend such claims to the extent they are covered by insurance maintained by CenterPoint Energy, subject to reimbursement of the costs of such defense by the NRG affiliate. CenterPoint Energy anticipates that additional claims like those received may be asserted in the future. Although their ultimate outcome cannot be predicted at this time, CenterPoint Energy intends to continue vigorously contesting claims that it does not consider to have merit and, based on its experience to date, does not expect these matters, either individually or in the aggregate, to have a material adverse effect on CenterPoint Energy’s financial condition, results of operations or cash flows.

Other Environmental. From time to time CenterPoint Energy identifies the presence of environmental contaminants on property where its subsidiaries conduct or have conducted operations.  Other such sites involving contaminants may be identified in the future.  CenterPoint Energy has and expects to continue to remediate identified sites consistent with its legal obligations. From time to time CenterPoint Energy has received notices from regulatory authorities or others regarding its status as a PRP in connection with sites found to require remediation due to the presence of environmental contaminants. In addition, CenterPoint Energy has been named from time to time as a defendant in litigation related to such sites. Although the ultimate outcome of such matters cannot be predicted at this time, CenterPoint Energy does not expect, based on its experience to date, these matters, either individually or in the aggregate, to have a material adverse effect on CenterPoint Energy’s financial condition, results of operations or cash flows.

Other Proceedings

CenterPoint Energy is involved in other legal, environmental, tax and regulatory proceedings before various courts, regulatory commissions and governmental agencies regarding matters arising in the ordinary course of business. From time to time, CenterPoint Energy is also a defendant in legal proceedings with respect to claims brought by various plaintiffs against broad groups of participants in the energy industry. Some of these proceedings involve substantial amounts. CenterPoint Energy regularly analyzes current information and, as necessary, provides accruals for probable liabilities on the eventual disposition of these matters. CenterPoint Energy does not expect the disposition of these matters to have a material adverse effect on CenterPoint Energy’s financial condition, results of operations or cash flows.

(e) Guarantees

Prior to the distribution of CenterPoint Energy’s ownership in RRI to its shareholders, CERC had guaranteed certain contractual obligations of what became RRI’s trading subsidiary.  When the companies separated, RRI agreed to secure CERC against obligations under the guarantees RRI had been unable to extinguish by the time of separation.  Pursuant to such agreement, as amended in December 2007, RRI (now GenOn) agreed to provide to CERC cash or letters of credit as security against CERC’s obligations under its remaining guarantees for demand charges under certain gas transportation agreements if and to the extent changes in market conditions expose CERC to a risk of loss on those guarantees based on an annual calculation, with any required collateral to be posted each December.  The undiscounted maximum potential payout of the demand charges under these transportation contracts, which will be in effect until 2018, was approximately $42 million as of December 31, 2014.  Based on market conditions in the fourth quarter of 2014 at the time the most recent annual calculation was made under the agreement, GenOn was not obligated to post any security. If GenOn should fail to perform the contractual obligations, CERC could have to honor its guarantee and, in such event, any collateral then provided as security may be insufficient to satisfy CERC’s obligations.

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CenterPoint Energy has provided guarantees (CenterPoint Midstream Guarantees) with respect to the performance of certain obligations of Enable under long-term gas gathering and treating agreements with an indirect wholly owned subsidiary of Encana Corporation and an indirect wholly owned subsidiary of Royal Dutch Shell plc. As of December 31, 2014, CenterPoint Energy had guaranteed Enable’s obligations up to an aggregate amount of $100 million under these agreements. Under the terms of the omnibus agreement entered into in connection with the closing of the formation of Enable, Enable and CenterPoint Energy have agreed to use commercially reasonable efforts and cooperate with each other to terminate the CenterPoint Midstream Guarantees and to release CenterPoint Energy from such guarantees by causing Enable or one of its subsidiaries to enter into substitute guarantees or to assume the CenterPoint Midstream Guarantees as applicable.

CERC Corp. has also provided a guarantee of collection of $1.1 billion of Enable’s Guaranteed Senior Notes. This guarantee is subordinated to all senior debt of CERC Corp. and is subject to automatic release on May 1, 2016.

The fair value of these guarantees is not material.

(15) Earnings Per Share

The following table reconciles numerators and denominators of CenterPoint Energy’s basic and diluted earnings per share calculations:

	For the Year Ended December 31,
	2014		2013		2012
	(in millions, except per share and share amounts)
Net income	$	611	$	311	$	417
Basic weighted average shares outstanding	429,634,000		428,466,000		427,189,000
Plus: Incremental shares from assumed conversions:
Stock options	—		41,000		152,000
Restricted stock	2,034,000		2,423,000		2,453,000
Diluted weighted average shares	431,668,000		430,930,000		429,794,000
Basic earnings per share	$	1.42	$	0.73	$	0.98
Diluted earnings per share	$	1.42	$	0.72	$	0.97

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(16) Unaudited Quarterly Information

Summarized quarterly financial data is as follows:

	Year Ended December 31, 2014
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter (3)
	(in millions, except per share amounts)
Revenues	$	3,163	$	1,884	$	1,807	$	2,372
Operating income	295		186		233		221
Net income	185		107		143		176
Basic earnings per share(1)	$	0.43	$	0.25	$	0.33	$	0.41
Diluted earnings per share(1)	$	0.43	$	0.25	$	0.33	$	0.41

	Year Ended December 31, 2013
	First Quarter		Second Quarter (2)			Third Quarter		Fourth Quarter
	(in millions, except per share amounts)
Revenues	$	2,388	$	1,894		$	1,640	$	2,184
Operating income	332		223			244		211
Net income (loss)	$	147	$	(100	)	$	151	$	113
Basic earnings (loss) per share(1)	$	0.34	$	(0.23	)	$	0.35	$	0.26
Diluted earnings (loss) per share(1)	$	0.34	$	(0.23	)	$	0.35	$	0.26

(1) Quarterly earnings per common share are based on the weighted average number of shares outstanding during the quarter, and the sum of the quarters may not equal annual earnings per common share.

(2) Effective May 1, 2013, CenterPoint Energy contributed CenterPoint Midstream to Enable.  See Note 2(b) and Note 9 for further discussion on the formation of Enable and CenterPoint Energy’s investment in Enable, respectively.

(3) CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review. 

(17) Reportable Business Segments

CenterPoint Energy’s determination of reportable business segments considers the strategic operating units under which CenterPoint Energy manages sales, allocates resources and assesses performance of various products and services to wholesale or retail customers in differing regulatory environments. CenterPoint Energy uses operating income as the measure of profit or loss for its business segments.

CenterPoint Energy’s reportable business segments include the following: Electric Transmission & Distribution, Natural Gas Distribution, Energy Services, Midstream Investments and Other Operations. The electric transmission and distribution function (CenterPoint Houston) is reported in the Electric Transmission & Distribution business segment. Natural Gas Distribution consists of intrastate natural gas sales to, and natural gas transportation and distribution for, residential, commercial, industrial and institutional customers. Energy Services represents CenterPoint Energy’s non-rate regulated gas sales and services operations. Midstream Investments consists primarily of CenterPoint Energy’s investment in Enable and its retained interest in SESH. Other Operations consists primarily of other corporate operations which support all of CenterPoint Energy’s business operations.

Prior to May 1, 2013, CenterPoint Energy also reported an Interstate Pipelines business segment, which included CenterPoint Energy’s interstate natural gas pipeline operations, and a Field Services business segment, which included CenterPoint Energy’s non-rate regulated natural gas gathering, processing and treating operations. The formation of Enable closed on May 1, 2013. Enable now owns substantially all of CenterPoint Energy’s former Interstate Pipelines and Field Services business segments,

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except for a 0.1% interest in SESH. As a result, effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable and equity earnings associated with its interest in SESH under its Midstream Investments segment, and no longer has Interstate Pipelines and Field Services reporting segments prospectively.

Long-lived assets include net property, plant and equipment, goodwill and other intangibles and equity investments in unconsolidated subsidiaries. Intersegment sales are eliminated in consolidation.

Financial data for business segments and products and services are as follows (in millions):

	Revenues from External Customers			Intersegment Revenues			Depreciation and Amortization		Operating Income (Loss)			Total Assets				Expenditures for Long-Lived Assets
As of and for the year ended December 31, 2014:
Electric Transmission & Distribution	$	2,845	(1)	$	—		$	768	$	595		$	10,066			$	818
Natural Gas Distribution	3,271			30			201		287			5,464				525
Energy Services	3,095			84			5		52			978				3
Midstream Investments (2)	—			—			—		—			4,521				—
Other	15			—			39		1			3,368			(3)	56
Reconciling Eliminations	—			(114		)	—		—			(1,197		)		—
Consolidated	$	9,226		$	—		$	1,013	$	935		$	23,200			$	1,402
As of and for the year ended December 31, 2013:
Electric Transmission & Distribution	$	2,570	(1)	$	—		$	685	$	607		$	9,605			$	759
Natural Gas Distribution	2,837			26			185		263			4,976				430
Energy Services	2,374			27			5		13			895				3
Interstate Pipelines (4) (6)	133			53			20		72			—				29
Field Services (5) (6)	178			18			20		73			—				16
Midstream Investments (2)	—			—			—		—			4,518				—
Other	14			—			39		(18		)	3,026			(3)	35
Reconciling Eliminations	—			(124		)	—		—			(1,150		)		—
Consolidated	$	8,106		$	—		$	954	$	1,010		$	21,870			$	1,272
As of and for the year ended December 31, 2012:
Electric Transmission & Distribution	$	2,540	(1)	$	—		$	729	$	639		$	11,174			$	599
Natural Gas Distribution	2,320			22			173		226			4,775				359
Energy Services	1,758			26			6		(250		)	839				6
Interstate Pipelines (4)	356			146			56		207			4,004				132
Field Services (5)	467			39			50		214			2,453				52
Other	11			—			36		2			2,600			(3)	40
Reconciling Eliminations	—			(233		)	—		—			(2,974		)		—
Consolidated	$	7,452		$	—		$	1,050	$	1,038		$	22,871			$	1,188

(1) Sales to affiliates of NRG in 2014, 2013 and 2012 represented approximately $735 million, $658 million and $648 million, respectively, of CenterPoint Houston’s transmission and distribution revenues. Sales to affiliates of Energy Future Holdings Corp. in 2014, 2013 and 2012 represented approximately $189 million, $167 million and $162 million, respectively, of CenterPoint Houston’s transmission and distribution revenues.

(2) Midstream Investments reported equity earnings of $303 million from Enable and $5 million of equity earnings from CenterPoint Energy’s interest in SESH for the year ended December 31, 2014. Midstream Investments reported equity earnings of $173 million from Enable and $8 million of equity earnings from CenterPoint Energy’s interest in SESH for the eight months ended December 31, 2013. Included in total assets of Midstream Investments as of December 31, 2014 and 2013 is $4,520 million and $4,319 million, respectively, related to CenterPoint Energy’s investment in Enable and $1 million and $199 million related to CenterPoint Energy’s retained interest in SESH, respectively.

(3) Included in total assets of Other Operations as of December 31, 2014, 2013 and 2012, are pension and other postemployment related regulatory assets of $795 million, $627 million and $832 million, respectively.

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(4) Interstate Pipelines recorded equity income of $7 million and $26 million in the years ended December 31, 2013 and 2012, respectively, from its interest in SESH, a jointly-owned pipeline. These amounts are included in Equity in earnings of unconsolidated affiliates under the Other Income (Expense) caption.  Interstate Pipelines’ investment in SESH was $404 million as of December 31, 2012, and is included in Investment in unconsolidated affiliates. As discussed above, effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable and equity earnings associated with its interest in SESH under its Midstream Investments segment, and no longer has an Interstate Pipelines reporting segment prospectively.

(5) Field Services recorded equity income of $5 million for the year ended December 31, 2012 from its interest in Waskom. This amount is included in Equity in earnings of unconsolidated affiliates under the Other Income (Expense) caption. Beginning on August 1, 2012, financial results for Waskom are included in operating income due to the July 31, 2012 purchase of the 50% interest in Waskom that CenterPoint Energy did not already own. CenterPoint Energy contributed 100% interest in Waskom to Enable on May 1, 2013. Effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable under its Midstream Investments segment, and no longer has a Field Services reporting segment prospectively.

(6) Results reflected in the year ended December 31, 2013 represent only January 2013 through April 2013.

	Year Ended December 31,
Revenues by Products and Services:	2014		2013		2012
Electric delivery	$	2,845	$	2,570	$	2,540
Retail gas sales	5,049		4,150		3,328
Wholesale gas sales	1,159		913		613
Gas transportation and processing	38		345		847
Energy products and services	135		128		124
Total	$	9,226	$	8,106	$	7,452

(18) Subsequent Events

On January 22, 2015, CenterPoint Energy’s board of directors declared a regular quarterly cash dividend of $0.2475 per share of common stock payable on March 10, 2015, to shareholders of record as of the close of business on February 13, 2015.

On January 23, 2015, Enable declared a quarterly cash distribution of $0.30875 per unit on all of its outstanding common and subordinated units for the quarter ended December 31, 2014. Accordingly, CERC Corp. expects to receive a cash distribution of approximately $72 million from Enable in the first quarter of 2015 to be made with respect to CERC Corp.’s limited partner interest in Enable for the fourth quarter of 2014.

Item 9. Changes in and Disagreements with Accountants on Accounting andFinancial Disclosure

None.

Item 9A. Controls and Procedures

Disclosure Controls And Procedures

In accordance with Exchange Act Rules 13a-15 and 15d-15, we carried out an evaluation, under the supervision and with the participation of management, including our principal executive officer and principal financial officer, of the effectiveness of our disclosure controls and procedures as of the end of the period covered by this report. Based on that evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective as of December 31, 2014 to provide assurance that information required to be disclosed in our reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms and such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding disclosure.

There has been no change in our internal controls over financial reporting that occurred during the three months ended December 31, 2014 that has materially affected, or is reasonably likely to materially affect, our internal controls over financial reporting.

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The Committee of Sponsoring Organizations of the Treadway Commission (COSO) pertains to the assessment of internal control effectiveness in an organization.  This framework was first implemented in 1992 and revised in 2013.  CenterPoint Energy utilizes this framework for assessing the effectiveness of our internal controls and transitioned to the new 2013 COSO framework during the fourth quarter of 2014.

Management’s Annual Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting is defined in Rule 13a-15(f) or 15d-15(f) promulgated under the Securities Exchange Act of 1934 as a process designed by, or under the supervision of, the company’s principal executive and principal financial officers and effected by the company’s board of directors, management and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles and includes those policies and procedures that:

• Pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the assets of the company;

• Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and

• Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the company’s assets that could have a material effect on the financial statements.

Management has designed its internal control over financial reporting to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements in accordance with accounting principles generally accepted in the United States of America. Management’s assessment included review and testing of both the design effectiveness and operating effectiveness of controls over all relevant assertions related to all significant accounts and disclosures in the financial statements.

All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation. Projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on our evaluation under the framework in Internal Control — Integrated Framework (2013), our management has concluded that our internal control over financial reporting was effective as of December 31, 2014.

Deloitte & Touche LLP, the Company’s independent registered public accounting firm, has issued an attestation report on the effectiveness of our internal control over financial reporting as of December 31, 2014 which is set forth below. 

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of

CenterPoint Energy, Inc.

Houston, Texas

We have audited the internal control over financial reporting of CenterPoint Energy, Inc. and subsidiaries (the “Company”) as of December 31, 2014, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.  The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control Over Financial Reporting.  Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States).  Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.  Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances.  We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed by, or under the supervision of, the company’s principal executive and principal financial officers, or persons performing similar functions, and effected by the company’s board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.  A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis.  Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2014, based on the criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated financial statements and financial statement schedules as of and for the year ended December 31, 2014 of the Company and our report dated February 26, 2015expressed an unqualified opinion on those financial statements.

/s/ DELOITTE & TOUCHE LLP

Houston, Texas

February 26, 2015

120

Item 9B. Other Information

None.

PART III

Item 10. Directors, Executive Officers and Corporate Governance

The information called for by Item 10, to the extent not set forth in “Executive Officers” in Item 1, will be set forth in the definitive proxy statement relating to CenterPoint Energy’s 2015 annual meeting of shareholders pursuant to SEC Regulation 14A. Such definitive proxy statement relates to a meeting of shareholders involving the election of directors and the portions thereof called for by Item 10 are incorporated herein by reference pursuant to Instruction G to Form 10-K.

Item 11. Executive Compensation

The information called for by Item 11 will be set forth in the definitive proxy statement relating to CenterPoint Energy’s 2015 annual meeting of shareholders pursuant to SEC Regulation 14A. Such definitive proxy statement relates to a meeting of shareholders involving the election of directors and the portions thereof called for by Item 11 are incorporated herein by reference pursuant to Instruction G to Form 10-K.

Item 12. Security Ownership of Certain Beneficial Owners and Managementand Related Stockholder Matters

The information called for by Item 12 will be set forth in the definitive proxy statement relating to CenterPoint Energy’s 2015 annual meeting of shareholders pursuant to SEC Regulation 14A. Such definitive proxy statement relates to a meeting of shareholders involving the election of directors and the portions thereof called for by Item 12 are incorporated herein by reference pursuant to Instruction G to Form 10-K.

Item 13. Certain Relationships and Related Transactions, and DirectorIndependence

The information called for by Item 13 will be set forth in the definitive proxy statement relating to CenterPoint Energy’s 2015 annual meeting of shareholders pursuant to SEC Regulation 14A. Such definitive proxy statement relates to a meeting of shareholders involving the election of directors and the portions thereof called for by Item 13 are incorporated herein by reference pursuant to Instruction G to Form 10-K.

Item 14. Principal Accounting Fees and Services

The information called for by Item 14 will be set forth in the definitive proxy statement relating to CenterPoint Energy’s 2015 annual meeting of shareholders pursuant to SEC Regulation 14A. Such definitive proxy statement relates to a meeting of shareholders involving the election of directors and the portions thereof called for by Item 14 are incorporated herein by reference pursuant to Instruction G to Form 10-K.

121

PART IV

Item 15. Exhibits and Financial Statement Schedules

(a)(1) Financial Statements.

Report of Independent Registered Public Accounting Firm	71
Statements of Consolidated Income for the Three Years Ended December 31, 2014	72
Statements of Consolidated Comprehensive Income for the Three Years Ended December 31, 2014	73
Consolidated Balance Sheets at December 31, 2014 and 2013	74
Statements of Consolidated Cash Flows for the Three Years Ended  December 31, 2014	75
Statements of Consolidated Shareholders’ Equity for the Three Years Ended December 31, 2014	77
Notes to Consolidated Financial Statements	78

The financial statements of Enable Midstream Partners, LP required pursuant to Rule 3-09 of Regulation S-X are included in this filing as Exhibit 99.5.

(a)(2) Financial Statement Schedules for the Three Years Ended December 31, 2014

Report of Independent Registered Public Accounting Firm	123
I — Condensed Financial Information of CenterPoint Energy, Inc. (Parent Company)	124
II — Valuation and Qualifying Accounts	130

The following schedules are omitted because of the absence of the conditions under which they are required or because the required information is included in the financial statements:

III, IV and V.

(a)(3) Exhibits.

See Index of Exhibits beginning on page 132, which index also includes the management contracts or compensatory plans or arrangements required to be filed as exhibits to this Form 10-K by Item 601(b)(10)(iii) of Regulation S-K.

122

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of

CenterPoint Energy, Inc.

Houston, Texas

We have audited the consolidated financial statements of CenterPoint Energy, Inc. and subsidiaries (the “Company”) as of December 31, 2014 and 2013, and for each of the three years in the period ended December 31, 2014, and the Company’s internal control over financial reporting as of December 31, 2014, and have issued our reports thereon dated February 26, 2015; such reports are included elsewhere in this Form 10-K.  Our audits also included the financial statement schedules of the Company listed in the index at Item 15 (a)(2).  These financial statement schedules are the responsibility of the Company’s management.  Our responsibility is to express an opinion based on our audits.  In our opinion, such financial statement schedules, when considered in relation to the basic consolidated financial statements taken as a whole, present fairly, in all material respects, the information set forth therein.

/s/ DELOITTE & TOUCHE LLP

Houston, Texas

February 26, 2015

123

CENTERPOINT ENERGY, INC.

SCHEDULE I — CONDENSED FINANCIAL INFORMATION OF

CENTERPOINT ENERGY, INC. (PARENT COMPANY)

STATEMENTS OF INCOME

	For the Year Ended December 31,
	2014			2013			2012
	(in millions)
Expenses:
Operation and Maintenance Expenses	$	(22	)	$	(13	)	$	(20	)
Total	(22		)	(13		)	(20		)
Other Income (Expense):
Interest Income from Subsidiaries	—			8			10
Other Income (Expense)	(1		)	(5		)	6
Loss on Indexed Debt Securities	(86		)	(193		)	(71		)
Interest Expense to Subsidiaries	—			(24		)	(25		)
Interest Expense	(103		)	(104		)	(112		)
Total	(190		)	(318		)	(192		)
Loss Before Income Taxes, Equity in Subsidiaries	(212		)	(331		)	(212		)
Income Tax Benefit	115			137			87
Loss Before Equity in Subsidiaries	(97		)	(194		)	(125		)
Equity Income of Subsidiaries	708			505			542
Net Income	$	611		$	311		$	417

See Notes to Condensed Financial Information (Parent Company) and

CenterPoint Energy, Inc. and Subsidiaries Notes to Consolidated Financial Statements in Part II, Item 8

124

CENTERPOINT ENERGY, INC.

SCHEDULE I — CONDENSED FINANCIAL INFORMATION OF

CENTERPOINT ENERGY, INC. (PARENT COMPANY)

STATEMENTS OF COMPREHENSIVE INCOME

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Net income	$	611	$	311	$	417
Other comprehensive income (loss):
Adjustment to pension and other postretirement plans (net of tax of $5,$25 and $2)	3		44		(2		)
Reclassification of deferred loss from cash flow hedges realized in net income (net of tax)	1		1		—
Other comprehensive income (loss)	4		45		(2		)
Comprehensive income	$	615	$	356	$	415

See Notes to Condensed Financial Information (Parent Company) and

CenterPoint Energy, Inc. and Subsidiaries Notes to Consolidated Financial Statements in Part II, Item 8

125

CENTERPOINT ENERGY, INC.

SCHEDULE I — CONDENSED FINANCIAL INFORMATION OF

CENTERPOINT ENERGY, INC. (PARENT COMPANY)

BALANCE SHEETS

	December 31,
	2014			2013
	(in millions)
ASSETS
Current Assets:
Cash and cash equivalents	$	—		$	—
Notes receivable — subsidiaries	227			88
Accounts receivable — subsidiaries	230			116
Other assets	87			21
Total current assets	544			225
Other Assets:
Investment in subsidiaries	6,529			6,142
Other assets	811			649
Total other assets	7,340			6,791
Total Assets	$	7,884		$	7,016
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current Liabilities:
Notes payable — subsidiaries	$	142		$	11
Indexed debt	152			143
Current portion of other long-term debt	269			—
Indexed debt securities derivative	541			455
Accounts payable:
Subsidiaries	80			35
Other	2			5
Taxes accrued	575			517
Interest accrued	13			13
Other	22			—
Total current liabilities	1,796			1,179
Other Liabilities:
Accumulated deferred tax liabilities	240			232
Benefit obligations	441			340
Other	1			—
Total non-current liabilities	682			572
Long-Term Debt	858			936
Shareholders’ Equity:
Common stock	4			4
Additional paid-in capital	4,169			4,157
Retained earnings	461			258
Accumulated other comprehensive loss	(86		)	(90		)
Total shareholders’ equity	4,548			4,329
Total Liabilities and Shareholders’ Equity	$	7,884		$	7,016

See Notes to Condensed Financial Information (Parent Company) and

CenterPoint Energy, Inc. and Subsidiaries Notes to Consolidated Financial Statements in Part II, Item 8

126

CENTERPOINT ENERGY, INC.

SCHEDULE I — CONDENSED FINANCIAL INFORMATION OF

CENTERPOINT ENERGY, INC. (PARENT COMPANY)

STATEMENTS OF CASH FLOWS

	For the Year Ended December 31,
	2014			2013			2012
	(in millions)
Operating Activities:
Net income	$	611		$	311		$	417
Non-cash items included in net income:
Equity income of subsidiaries	(708		)	(505		)	(542		)
Deferred income tax expense	86			6			113
Amortization of debt issuance costs	4			4			4
Loss on indexed debt securities	86			193			71
Changes in working capital:
Accounts receivable/(payable) from subsidiaries, net	(7		)	47			39
Accounts payable	(3		)	5			—
Other current assets	—			—			26
Other current liabilities	(83		)	42			(63		)
Common stock dividends received from subsidiaries	315			766			1,700
Other	(76		)	(70		)	(72		)
Net cash provided by operating activities	225			799			1,693
Investing Activities:
Decrease (increase) in notes receivable from subsidiaries	(139		)	868			(398		)
Net cash provided by (used in) investing activities	(139		)	868			(398		)
Financing Activities:
Proceeds from commercial paper, net	191			—			—
Payments on long-term debt	—			(151		)	(375		)
Debt issuance costs	(1		)	(2		)	—
Common stock dividends paid	(408		)	(355		)	(346		)
Proceeds from issuance of common stock, net	1			4			4
Increase (decrease) in notes payable to subsidiaries	131			(1,173		)	(578		)
Redemption of indexed debt securities	—			(8		)	—
Other	—			18			—
Net cash used in financing activities	(86		)	(1,667		)	(1,295		)
Net Decrease in Cash and Cash Equivalents	—			—			—
Cash and Cash Equivalents at Beginning of Year	—			—			—
Cash and Cash Equivalents at End of Year	$	—		$	—		$	—

See Notes to Condensed Financial Information (Parent Company) and

CenterPoint Energy, Inc. and Subsidiaries Notes to Consolidated Financial Statements in Part II, Item 8

127

CENTERPOINT ENERGY, INC.

SCHEDULE I — NOTES TO CONDENSED FINANCIAL INFORMATION (PARENT COMPANY)

(1) Background. The condensed parent company financial statements and notes of CenterPoint Energy, Inc. (CenterPoint Energy) should be read in conjunction with the consolidated financial statements and notes of CenterPoint Energy, Inc. and subsidiaries appearing in the Annual Report on Form 10-K. Credit facilities at CenterPoint Energy Houston Electric, LLC (CenterPoint Houston) and CenterPoint Energy Resources Corp., indirect wholly owned subsidiaries of CenterPoint Energy, limit debt, excluding transition and system restoration bonds, as a percentage of their consolidated capitalization to 65%. These covenants could restrict the ability of these subsidiaries to distribute dividends to CenterPoint Energy.

(2) New Accounting Pronouncements. In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (ASU 2014-08), which significantly changes the existing accounting guidance on discontinued operations. Under ASU 2014-08, only those disposals of components of an entity that represent a strategic shift that has (or will have) a major effect on an entity’s operations and financial results should be reported as a discontinued operation.  ASU 2014-08 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2014.  ASU 2014-08 should be applied to components classified as held for sale after its effective date. Early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The adoption is expected to reduce the number of disposals that meet the definition of a discontinued operation.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (ASU 2014-09), which supersedes most current revenue recognition guidance. ASU 2014-09 provides a comprehensive new revenue recognition model that requires revenue to be recognized in a manner that depicts the transfer of goods or services to a customer at an amount that reflects the consideration expected to be received in exchange for those goods or services. ASU 2014-09 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. Early adoption is not permitted, and entities have the option of using either a full retrospective or a modified retrospective adoption approach. Accordingly, CenterPoint Energy will adopt ASU 2014-09 on January 1, 2017, and is currently evaluating the impact that this standard will have on its financial position, results of operations, cash flows and disclosures.

In November 2014, the FASB issued ASU No. 2014-16, Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity (ASU 2014-16).  ASU 2014-16 clarifies how current guidance should be interpreted in evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. Specifically, the amendments clarify that an entity should consider all relevant terms and features, including the embedded derivative feature being evaluated for bifurcation, in evaluating the nature of a host contract. ASU 2014-16 is effective for fiscal years and interim periods beginning after December 15, 2015. CenterPoint Energy is currently assessing the impact, if any, that this standard will have on its financial position, results of operations, cash flows and disclosures.

In January 2015, the FASB issued ASU No. 2015-01, Income Statement-Extraordinary and Unusual Items (Subtopic 225-20)-Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items (ASU 2015-01), which eliminates the concept of extraordinary items. ASU 2015-01 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015, and may be applied either prospectively or retrospectively. CenterPoint Energy will adopt ASU 2015-01 on January 1, 2016 and does not anticipate the adoption to have a material impact on its consolidated financial statements.

Management believes that other recently issued standards, which are not yet effective, will not have a material impact on CenterPoint Energy’s consolidated financial position, results of operations or cash flows upon adoption.

(3) Long-term Debt. As of December 31, 2014 and 2013, CenterPoint Energy had no borrowings and approximately $6 million and $6 million, respectively, of outstanding letters of credit under its $1.2 billion credit facility. There was $191 million of commercial paper outstanding that was backstopped by CenterPoint Energy’s $1.2 billion credit facility as of December 31, 2014. CenterPoint Energy was in compliance with all financial debt covenants as of December 31, 2014.

CenterPoint Energy’s $1.2 billion revolving credit facility, which is scheduled to terminate on September 9, 2019, can be drawn at the London Interbank Offered Rate (LIBOR) plus 1.25% based on CenterPoint Energy’s current credit ratings. The revolving credit facility contains a financial covenant which limits CenterPoint Energy’s consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of CenterPoint Energy’s consolidated capitalization. The financial covenant limit will temporarily increase from 65% to 70% if CenterPoint Houston experiences damage from a natural disaster in its service territory and CenterPoint Energy certifies to the administrative agent that CenterPoint Houston has incurred system

128

restoration costs reasonably likely to exceed $100 million in a consecutive twelve-month period, all or part of which CenterPoint Houston intends to seek to recover through securitization financing. Such temporary increase in the financial covenant would be in effect from the date CenterPoint Energy delivers its certification until the earliest to occur of (i) the completion of the securitization financing, (ii) the first anniversary of CenterPoint Energy’s certification or (iii) the revocation of such certification.

CenterPoint Energy’s maturities of long-term debt, excluding the indexed debt securities obligation, are $269 million in 2015, $250 million in 2017, $350 million in 2018 and $191 million in 2019.  There are no maturities of long-term debt in 2016.

(4) Guarantees. CenterPoint Energy has provided guarantees (CenterPoint Midstream Guarantees) with respect to the performance of certain obligations of Enable under long-term gas gathering and treating agreements with an indirect wholly owned subsidiary of Encana Corporation and an indirect wholly owned subsidiary of Royal Dutch Shell plc. As of December 31, 2014, CenterPoint Energy had guaranteed Enable’s obligations up to an aggregate amount of $100 million under these agreements. Under the terms of the omnibus agreement entered into in connection with the closing of the formation of Enable, Enable and CenterPoint Energy have agreed to use commercially reasonable efforts and cooperate with each other to terminate the CenterPoint Midstream Guarantees and to release CenterPoint Energy from such guarantees by causing Enable or one of its subsidiaries to enter into substitute guarantees or to assume the CenterPoint Midstream Guarantees as applicable.

129

CENTERPOINT ENERGY, INC.

SCHEDULE II —VALUATION AND QUALIFYING ACCOUNTS

For the Three Years Ended December 31, 2014

Column A	Column B		Column C						Column D		Column E
			Additions
	Balance at Beginning of Period		Charged to Income			Charged to Other Accounts			Deductions From Reserves (1)		Balance at End of Period
Description	(in millions)
Year Ended December 31, 2014
Accumulated provisions:
Uncollectible accounts receivable	$	28	$	22		$	2		$	26	$	26
Deferred tax asset valuation allowance	2		—			—			—		2
Year Ended December 31, 2013
Accumulated provisions:
Uncollectible accounts receivable	$	25	$	21		$	1		$	19	$	28
Deferred tax asset valuation allowance	2		—			—			—		2
Year Ended December 31, 2012
Accumulated provisions:
Uncollectible accounts receivable	$	25	$	16		$	1		$	17	$	25
Deferred tax asset valuation allowance	4		(1		)	(1		)	—		2

(1) Deductions from reserves represent losses or expenses for which the respective reserves were created. In the case of the uncollectible accounts reserve, such deductions are net of recoveries of amounts previously written off.

130

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Houston, the State of Texas, on the 26th day of February, 2015.

CENTERPOINT ENERGY, INC.

(Registrant)

By:  /s/ Scott M. Prochazka

Scott M. Prochazka

President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities indicated on February 26, 2015.

Signature	Title
/s/  SCOTT M. PROCHAZKA	President, Chief Executive Officer and
Scott M. Prochazka	Director (Principal Executive Officer and Director)
/s/  GARY L. WHITLOCK	Executive Vice President and Chief
Gary L. Whitlock	Financial Officer (Principal Financial Officer)
/s/  KRISTIE L. COLVIN	Senior Vice President and Chief
Kristie L. Colvin	Accounting Officer (Principal Accounting Officer)
/s/  MILTON CARROLL	Executive Chairman of the Board of Directors
Milton Carroll
/s/  MICHAEL P. JOHNSON	Director
Michael P. Johnson
/s/  JANIECE M. LONGORIA	Director
Janiece M. Longoria
/s/  SCOTT J. MCLEAN	Director
Scott J. McLean
/s/  SUSAN O. RHENEY	Director
Susan O. Rheney
/s/  PHILIP R. SMITH	Director
Philip R. Smith
/s/  R. A. WALKER	Director
R. A. Walker
/s/  PETER S. WAREING	Director
Peter S. Wareing

131

CENTERPOINT ENERGY, INC.

EXHIBITS TO THE ANNUAL REPORT ON FORM 10-K

For Fiscal Year Ended December 31, 2014

INDEX OF EXHIBITS

Exhibits included with this report are designated by a cross (†); all exhibits not so designated are incorporated herein by reference to a prior filing as indicated. Exhibits designated by an asterisk (*) are management contracts or compensatory plans or arrangements required to be filed as exhibits to this Form 10-K by Item 601(b)(10)(iii) of Regulation S-K. CenterPoint Energy has not filed the exhibits and schedules to Exhibit 2. CenterPoint Energy hereby agrees to furnish supplementally a copy of any schedule omitted from Exhibit 2 to the SEC upon request.

The agreements included as exhibits are included only to provide information to investors regarding their terms.  The agreements listed below may contain representations, warranties and other provisions that were made, among other things, to provide the parties thereto with specified rights and obligations and to allocate risk among them, and such agreements should not be relied upon as constituting or providing any factual disclosures about us, any other persons, any state of affairs or other matters.

Exhibit Number		Description	Report or Registration Statement	SEC File or Registration Number	Exhibit Reference
2	—	Transaction Agreement dated July 21, 2004 among CenterPoint Energy, Utility Holding, LLC, NN Houston Sub, Inc., Texas Genco Holdings, Inc. (Texas Genco), HPC Merger Sub, Inc. and GC Power Acquisition LLC	CenterPoint Energy’s Form 8-K dated July 21, 2004	1-31447	10.1
3(a)	—	Restated Articles of Incorporation of CenterPoint Energy	CenterPoint Energy’s Form 8-K dated July 24, 2008	1-31447	3.2
3(b)	—	Amended and Restated Bylaws of CenterPoint Energy	CenterPoint Energy’s Form 8-K dated July 24, 2014	1-31447	3.1
3(c)	—	Statement of Resolutions Deleting Shares Designated Series A Preferred Stock of CenterPoint Energy	CenterPoint Energy’s Form 10-K for the year ended December 31, 2011	1-31447	3(c)
4(a)	—	Form of CenterPoint Energy Stock Certificate	CenterPoint Energy’s Registration Statement on Form S-4	333-69502	4.1
4(c)	—	Contribution and Registration Agreement dated December 18, 2001 among Reliant Energy, CenterPoint Energy and the Northern Trust Company, trustee under the Reliant Energy, Incorporated Master Retirement Trust	CenterPoint Energy’s Form 10-K for the year ended December 31, 2001	1-31447	4.3
4(d)(1)	—	Mortgage and Deed of Trust, dated November 1, 1944 between Houston Lighting and Power Company (HL&P) and Chase Bank of Texas, National Association (formerly, South Texas Commercial National Bank of Houston), as Trustee, as amended and supplemented by 20 Supplemental Indentures thereto	HL&P’s Form S-7 filed on August 25, 1977	2-59748	2(b)
4(d)(2)	—	Twenty-First through Fiftieth Supplemental Indentures to Exhibit 4(d)(1)	HL&P’s Form 10-K for the year ended December 31, 1989	1-3187	4(a)(2)
4(d)(3)	—	Fifty-First Supplemental Indenture to Exhibit 4(d)(1) dated as of March 25, 1991	HL&P’s Form 10-Q for the quarter ended June 30, 1991	1-3187	4(a)
4(d)(4)	—	Fifty-Second through Fifty-Fifth Supplemental Indentures to Exhibit 4(d)(1) each dated as of March 1, 1992	HL&P’s Form 10-Q for the quarter ended March 31, 1992	1-3187	4
4(d)(5)	—	Fifty-Sixth and Fifty-Seventh Supplemental Indentures to Exhibit 4(d)(1) each dated as of October 1, 1992	HL&P’s Form 10-Q for the quarter ended September 30, 1992	1-3187	4

132

4(d)(6)	—	Fifty-Eighth and Fifty-Ninth Supplemental Indentures to Exhibit 4(d)(1) each dated as of March 1, 1993	HL&P’s Form 10-Q for the quarter ended March 31, 1993	1-3187	4
4(d)(7)	—	Sixtieth Supplemental Indenture to Exhibit 4(d)(1) dated as of July 1, 1993	HL&P’s Form 10-Q for the quarter ended June 30, 1993	1-3187	4
4(d)(8)	—	Sixty-First through Sixty-Third Supplemental Indentures to Exhibit 4(d)(1) each dated as of December 1, 1993	HL&P’s Form 10-K for the year ended December 31, 1993	1-3187	4(a)(8)
4(d)(9)	—	Sixty-Fourth and Sixty-Fifth Supplemental Indentures to Exhibit 4(d)(1) each dated as of July 1, 1995	HL&P’s Form 10-K for the year ended December 31, 1995	1-3187	4(a)(9)
4(e)(1)	—	General Mortgage Indenture, dated as of October 10, 2002, between CenterPoint Energy Houston Electric, LLC and JPMorgan Chase Bank, as Trustee	CenterPoint Houston’s Form 10-Q for the quarter ended September 30, 2002	1-3187	4(j)(1)
4(e)(2)	—	Second Supplemental Indenture to Exhibit 4(e)(1), dated as of October 10, 2002	CenterPoint Houston’s Form 10- Q for the quarter ended September 30, 2002	1-3187	4(j)(3)
4(e)(3)	—	Third Supplemental Indenture to Exhibit 4(e)(1), dated as of October 10, 2002	CenterPoint Houston’s Form 10-Q for the quarter ended September 30, 2002	1-3187	4(j)(4)
4(e)(4)	—	Fourth Supplemental Indenture to Exhibit 4(e)(1), dated as of October 10, 2002	CenterPoint Houston’s Form 10- Q for the quarter ended September 30, 2002	1-3187	4(j)(5)
4(e)(5)	—	Fifth Supplemental Indenture to Exhibit 4(e)(1), dated as of October 10, 2002	CenterPoint Houston’s Form 10-Q for the quarter ended September 30, 2002	1-3187	4(j)(6)
4(e)(6)	—	Sixth Supplemental Indenture to Exhibit 4(e)(1), dated as of October 10, 2002	CenterPoint Houston’s Form 10-Q for the quarter ended September 30, 2002	1-3187	4(j)(7)
4(e)(7)	—	Seventh Supplemental Indenture to Exhibit 4(e)(1), dated as of October 10, 2002	CenterPoint Houston’s Form 10-Q for the quarter ended September 30, 2002	1-3187	4(j)(8)
4(e)(8)	—	Eighth Supplemental Indenture to Exhibit 4(e)(1), dated as of October 10, 2002	CenterPoint Houston’s Form 10-Q for the quarter ended September 30, 2002	1-3187	4(j)(9)
4(e)(9)	—	Officer’s Certificates dated October 10, 2002 setting forth the form, terms and provisions of the First through Eighth Series of General Mortgage Bonds	CenterPoint Energy’s Form 10-K for the year ended December 31, 2003	1-31447	4(e)(10)
4(e)(10)	—	Ninth Supplemental Indenture to Exhibit 4(e)(1), dated as of November 12, 2002	CenterPoint Energy’s Form 10-K for the year ended December 31, 2002	1-31447	4(e)(10)
4(e)(11)	—	Officer’s Certificate dated November 12, 2003 setting forth the form, terms and provisions of the Ninth Series of General Mortgage Bonds	CenterPoint Energy’s Form 10-K for the year ended December 31, 2003	1-31447	4(e)(12)
4(e)(12)	—	Tenth Supplemental Indenture to Exhibit 4(e)(1), dated as of March 18, 2003	CenterPoint Energy’s Form 8-K dated March 13, 2003	1-31447	4.1
4(e)(13)	—	Officer’s Certificate dated March 18, 2003 setting forth the form, terms and provisions of the Tenth Series and Eleventh Series of General Mortgage Bonds	CenterPoint Energy’s Form 8-K dated March 13, 2003	1-31447	4.2
4(e)(14)	—	Eleventh Supplemental Indenture to Exhibit 4(e)(1), dated as of May 23, 2003	CenterPoint Energy’s Form 8-K dated May 16, 2003	1-31447	4.2
4(e)(15)	—	Officer’s Certificate dated May 23, 2003 setting forth the form, terms and provisions of the Twelfth Series of General Mortgage Bonds	CenterPoint Energy’s Form 8-K dated May 16, 2003	1-31447	4.1

133

4(e)(16)	—	Twelfth Supplemental Indenture to Exhibit 4(e)(1), dated as of September 9, 2003	CenterPoint Energy’s Form 8-K dated September 9, 2003	1-31447	4.2
4(e)(17)	—	Officer’s Certificate dated September 9, 2003 setting forth the form, terms and provisions of the Thirteenth Series of General Mortgage Bonds	CenterPoint Energy’s Form 8-K dated September 9, 2003	1-31447	4.3
4(e)(18)	—	Thirteenth Supplemental Indenture to Exhibit 4(e)(1), dated as of February 6, 2004	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(e)(16)
4(e)(19)	—	Officer’s Certificate dated February 6, 2004 setting forth the form, terms and provisions of the Fourteenth Series of General Mortgage Bonds	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(e)(17)
4(e)(20)	—	Fourteenth Supplemental Indenture to Exhibit 4(e)(1), dated as of February 11, 2004	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(e)(18)
4(e)(21)	—	Officer’s Certificate dated February 11, 2004 setting forth the form, terms and provisions of the Fifteenth Series of General Mortgage Bonds	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(e)(19)
4(e)(22)	—	Fifteenth Supplemental Indenture to Exhibit 4(e)(1), dated as of March 31, 2004	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(e)(20)
4(e)(23)	—	Officer’s Certificate dated March 31, 2004 setting forth the form, terms and provisions of the Sixteenth Series of General Mortgage Bonds	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(e)(21)
4(e)(24)	—	Sixteenth Supplemental Indenture to Exhibit 4(e)(1), dated as of March 31, 2004	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(e)(22)
4(e)(25)	—	Officer’s Certificate dated March 31, 2004 setting forth the form, terms and provisions of the Seventeenth Series of General Mortgage Bonds	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(e)(23)
4(e)(26)	—	Seventeenth Supplemental Indenture to Exhibit 4(e)(1), dated as of March 31, 2004	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(e)(24)
4(e)(27)	—	Officer’s Certificate dated March 31, 2004 setting forth the form, terms and provisions of the Eighteenth Series of General Mortgage Bonds	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(e)(25)
4(e)(28)	—	Nineteenth Supplemental Indenture to Exhibit 4(e)(1), dated as of November 26, 2008	CenterPoint Energy’s Form 8-K dated November 25, 2008	1-31447	4.2
4(e)(29)	—	Officer’s Certificate dated November 26, 2008 setting forth the form, terms and provisions of the Twentieth Series of General Mortgage Bonds	CenterPoint Energy’s Form 8-K dated November 25, 2008	1-31447	4.3
4(e)(30)	—	Twentieth Supplemental Indenture to Exhibit 4(e)(1), dated as of December 9, 2008	CenterPoint Houston’s Form 8-K dated January 6, 2009	1-3187	4.2
4(e)(31)	—	Twenty-First Supplemental Indenture to Exhibit 4(e)(1), dated as of January 9, 2009	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	4(e)(31)
4(e)(32)	—	Officer’s Certificate dated January 20, 2009 setting forth the form, terms and provisions of the Twenty-First Series of General Mortgage Bonds	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	4(e)(32)
4(e)(33)	—	Twenty-Second Supplemental Indenture to Exhibit 4(e)(1) dated as of August 10, 2012	CenterPoint Energy’s Form 10-K for the year ended December 31, 2012	1-31447	4(e)(33)

134

4(e)(34)	—	Officer’s Certificate, dated August 10, 2012 setting forth the form, terms and provisions of the Twenty-Second Series of General Mortgage Bonds	CenterPoint Energy’s Form 10-K for the year ended December 31, 2012	1-31447	4(e)(34)
4(e)(35)	—	Twenty-Third Supplemental Indenture, dated as of March 17, 2014, to the General Mortgage Indenture, dated as of October 10, 2002, between CenterPoint Houston and the Trustee	CenterPoint Energy’s Form 10-Q for the quarter ended March 31, 2014	1-31447	4.10
4(e)(36)	—	Officer’s Certificate, dated as of March 17, 2014, setting forth the form, terms and provisions of the Twenty-Third Series of General Mortgage Bonds	CenterPoint Energy’s Form 10-Q for the quarter ended March 31, 2014	1-31447	4.11
4(f)(1)	—	Indenture, dated as of February 1, 1998, between Reliant Energy Resources Corp. (RERC Corp.) and Chase Bank of Texas, National Association, as Trustee	CERC Corp.’s Form 8-K dated February 5, 1998	1-13265	4.1
4(f)(2)	—	Supplemental Indenture No. 1 to Exhibit 4(f)(1), dated as of February 1, 1998, providing for the issuance of RERC Corp.’s 6 1/2% Debentures due February 1, 2008	CERC Corp.’s Form 8-K dated November 9, 1998	1-13265	4.2
4(f)(3)	—	Supplemental Indenture No. 2 to Exhibit 4(f)(1), dated as of November 1, 1998, providing for the issuance of RERC Corp.’s 6 3/8% Term Enhanced ReMarketable Securities	CERC Corp.’s Form 8-K dated November 9, 1998	1-13265	4.1
4(f)(4)	—	Supplemental Indenture No. 3 to Exhibit 4(f)(1), dated as of July 1, 2000, providing for the issuance of RERC Corp.’s 8.125% Notes due 2005	CERC Corp.’s Registration Statement on Form S-4	333-49162	4.2
4(f)(5)	—	Supplemental Indenture No. 4 to Exhibit 4(f)(1), dated as of February 15, 2001, providing for the issuance of RERC Corp.’s 7.75% Notes due 2011	CERC Corp.’s Form 8-K dated February 21, 2001	1-13265	4.1
4(f)(6)	—	Supplemental Indenture No. 5 to Exhibit 4(f)(1), dated as of March 25, 2003, providing for the issuance of CenterPoint Energy Resources Corp.’s (CERC Corp.’s) 7.875% Senior Notes due 2013	CenterPoint Energy’s Form 8-K dated March 18, 2003	1-31447	4.1
4(f)(7)	—	Supplemental Indenture No. 6 to Exhibit 4(f)(1), dated as of April 14, 2003, providing for the issuance of CERC Corp.’s 7.875% Senior Notes due 2013	CenterPoint Energy’s Form 8-K dated April 7, 2003	1-31447	4.2
4(f)(8)	—	Supplemental Indenture No. 7 to Exhibit 4(f)(1), dated as of November 3, 2003, providing for the issuance of CERC Corp.’s 5.95% Senior Notes due 2014	CenterPoint Energy’s Form 8-K dated October 29, 2003	1-31447	4.2
4(f)(9)	—	Supplemental Indenture No. 8 to Exhibit 4(f)(1), dated as of December 28, 2005, providing for a modification of CERC Corp.’s 6 1/2% Debentures due 2008	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(f)(9)
4(f)(10)	—	Supplemental Indenture No. 9 to Exhibit 4(f)(1), dated as of May 18, 2006, providing for the issuance of CERC Corp.’s 6.15% Senior Notes due 2016	CenterPoint Energy’s Form 10-Q for the quarter ended June 30, 2006	1-31447	4.7
4(f)(11)	—	Supplemental Indenture No. 10 to Exhibit 4(f)(1), dated as of February 6, 2007, providing for the issuance of CERC Corp.’s 6.25% Senior Notes due 2037	CenterPoint Energy’s Form 10-K for the year ended December 31, 2006	1-31447	4(f)(11)
4(f)(12)	—	Supplemental Indenture No. 11 to Exhibit 4(f)(1) dated as of October 23, 2007, providing for the issuance of CERC Corp.’s 6.125% Senior Notes due 2017	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2007	1-31447	4.8

135

4(f)(13)	—	Supplemental Indenture No. 12 to Exhibit 4(f)(1) dated as of October 23, 2007, providing for the issuance of CERC Corp.’s 6.625% Senior Notes due 2037	CenterPoint Energy’s Form 10-Q for the quarter ended June 30, 2008	1-31447	4.9
4(f)(14)	—	Supplemental Indenture No. 13 to Exhibit 4(f)(1) dated as of May 15, 2008, providing for the issuance of CERC Corp.’s 6.00% Senior Notes due 2018	CenterPoint Energy’s Form 10-Q for the quarter ended June 30, 2008	1-31447	4.9
4(f)(15)	—	Supplemental Indenture No. 14 to Exhibit 4(f)(1) dated as of January 11, 2011, providing for the issuance of CERC Corp.’s 4.50% Senior Notes due 2021 and 5.85% Senior Notes due 2041	CenterPoint Energy’s Form 10-K for the year ended December 31, 2010	1-31447	4(f)(15)
4(f)(16)	—	Supplemental Indenture No. 15 to Exhibit 4(f)(1) dated as of January 20, 2011, providing for the issuance of  CERC Corp.’s 4.50% Senior Notes due 2021	CenterPoint Energy’s Form 10-K for the year ended December 31, 2010	1-31447	4(f)(16)
4(g)(1)	—	Indenture, dated as of May 19, 2003, between CenterPoint Energy and JPMorgan Chase Bank, as Trustee	CenterPoint Energy’s Form 8-K dated May 19, 2003	1-31447	4.1
4(g)(2)	—	Supplemental Indenture No. 1 to Exhibit 4(g)(1), dated as of May 19, 2003, providing for the issuance of CenterPoint Energy’s 3.75% Convertible Senior Notes due 2023	CenterPoint Energy’s Form 8-K dated May 19, 2003	1-31447	4.2
4(g)(3)	—	Supplemental Indenture No. 2 to Exhibit 4(g)(1), dated as of May 27, 2003, providing for the issuance of CenterPoint Energy’s 5.875% Senior Notes due 2008 and 6.85% Senior Notes due 2015	CenterPoint Energy’s Form 8-K dated May 19, 2003	1-31447	4.3
4(g)(4)	—	Supplemental Indenture No. 3 to Exhibit 4(g)(1), dated as of September 9, 2003, providing for the issuance of CenterPoint Energy’s 7.25% Senior Notes due 2010	CenterPoint Energy’s Form 8-K dated September 9, 2003	1-31447	4.2
4(g)(5)	—	Supplemental Indenture No. 4 to Exhibit 4(g)(1), dated as of December 17, 2003, providing for the issuance of CenterPoint Energy’s 2.875% Convertible Senior Notes due 2024	CenterPoint Energy’s Form 8-K dated December 10, 2003	1-31447	4.2
4(g)(6)	—	Supplemental Indenture No. 5 to Exhibit 4(g)(1), dated as of December 13, 2004, as supplemented by Exhibit 4(g)(5), relating to the issuance of CenterPoint Energy’s 2.875% Convertible Senior Notes due 2024	CenterPoint Energy’s Form 8-K dated December 9, 2004	1-31447	4.1
4(g)(7)	—	Supplemental Indenture No. 6 to Exhibit 4(g)(1), dated as of August 23, 2005, providing for the issuance of CenterPoint Energy’s 3.75% Convertible Senior Notes, Series B due 2023	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(g)(7)
4(g)(8)	—	Supplemental Indenture No. 7 to Exhibit 4(g)(1), dated as of February 6, 2007, providing for the issuance of CenterPoint Energy’s 5.95% Senior Notes due 2017	CenterPoint Energy’s Form 10-K for the year ended December 31, 2006	1-31447	4(g)(8)
4(g)(9)	—	Supplemental Indenture No. 8 to Exhibit 4(g)(1), dated as of May 5, 2008, providing for the issuance of CenterPoint Energy’s 6.50% Senior Notes due 2018	CenterPoint Energy’s Form 10-Q for the quarter ended June 30, 2008	1-31447	4.7
4(h)(1)	—	Subordinated Indenture dated as of September 1, 1999	Reliant Energy’s Form 8-K dated September 1, 1999	1-3187	4.1

136

4(h)(2)	—	Supplemental Indenture No. 1 dated as of September 1, 1999, between Reliant Energy and Chase Bank of Texas (supplementing Exhibit 4(h)(1) and providing for the issuance Reliant Energy’s 2% Zero-Premium Exchangeable Subordinated Notes Due 2029)	Reliant Energy’s Form 8-K dated September 15, 1999	1-3187	4.2
4(h)(3)	—	Supplemental Indenture No. 2 dated as of August 31, 2002, between CenterPoint Energy, Reliant Energy and JPMorgan Chase Bank (supplementing Exhibit 4(h)(1))	CenterPoint Energy’s Form 8-K12B dated August 31, 2002	1-31447	4(e)
4(h)(4)	—	Supplemental Indenture No. 3 dated as of December 28, 2005, between CenterPoint Energy, Reliant Energy and JPMorgan Chase Bank (supplementing Exhibit 4(h)(1))	CenterPoint Energy’s Form 10-K for the year ended December 31, 2005	1-31447	4(h)(4)
4(i)(1)	—	$1,200,000,000 Credit Agreement dated as of September 9, 2011, among CenterPoint Energy, as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated September 9, 2011	1-31447	4.1
4(i)(2)	—	First Amendment to Credit Agreement, dated as of April 11, 2013, among CenterPoint Energy, as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated April 11, 2013	1-31447	4.1
4(i)(3)	—	Second Amendment to Credit Agreement, dated as of September 9, 2013, among CenterPoint Energy, as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated September 9, 2013	1-31447	4.1
4(i)(4)	—	Third Amendment to Credit Agreement, dated as of September 9, 2014, among CenterPoint Energy, as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated September 10, 2014	1-31447	4.1
4(j)(1)	—	$300,000,000 Credit Agreement dated as of September 9, 2011, among CenterPoint Houston, as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated September 9, 2011	1-31447	4.2
4(j)(2)	—	First Amendment to Credit Agreement, dated as of September 9, 2013, among CenterPoint Houston, as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated September 9, 2013	1-31447	4.2
4(j)(3)	—	Second Amendment to Credit Agreement, dated as of September 9, 2014, among CenterPoint Houston, as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated September 10, 2014	1-31447	4.2
4(k)	—	$950,000,000 Credit Agreement dated as of September 9, 2011, among CERC Corp., as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated September 9, 2011	1-31447	4.3
4(k)(2)	—	First Amendment to Credit Agreement, dated as of April 11, 2013, among CERC Corp., as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated April 11, 2013	1-31447	4.2
4(k)(3)	—	Second Amendment to Credit Agreement, dated as of September 9, 2013, among CERC Corp., as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated September 9, 2013	1-31447	4.3
4(k)(4)	—	Third Amendment to Credit Agreement, dated as of September 9, 2014, among CERC Corp., as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated September 10, 2014	1-31447	4.3

Pursuant to Item 601(b)(4)(iii)(A) of Regulation S-K, CenterPoint Energy has not filed as exhibits to this Form 10-K certain long-term debt instruments, including indentures, under which the total amount of securities authorized does not exceed 10% of the total assets of CenterPoint Energy and its subsidiaries on a consolidated basis. CenterPoint Energy hereby agrees to furnish a copy of any such instrument to the SEC upon request.

137

Exhibit Number		Description	Report or Registration Statement	SEC File or Registration Number	Exhibit Reference
*10(a)	—	CenterPoint Energy Executive Benefits Plan, as amended and restated effective June 18, 2003	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2003	1-31447	10.4
*10(b)(1)	—	Executive Incentive Compensation Plan of Houston Industries Incorporated (HI) effective as of January 1, 1982	HI’s Form 10-K for the year ended December 31, 1991	1-7629	10(b)
*10(b)(2)	—	First Amendment to Exhibit 10(b)(1) effective as of March 30, 1992	HI’s Form 10-Q for the quarter ended March 31, 1992	1-7629	10(a)
*10(b)(3)	—	Second Amendment to Exhibit 10(b)(1) effective as of November 4, 1992	HI’s Form 10-K for the year ended December 31, 1992	1-7629	10(b)
*10(b)(4)	—	Third Amendment to Exhibit 10(b)(1) effective as of September 7, 1994	HI’s Form 10-K for the year ended December 31, 1994	1-7629	10(b)(4)
*10(b)(5)	—	Fourth Amendment to Exhibit 10(b)(1) effective as of August 6, 1997	HI’s Form 10-K for the year ended December 31, 1997	1-3187	10(b)(5)
*10(c)(1)	—	Executive Incentive Compensation Plan of HI as amended and restated on January 1, 1991	HI’s Form 10-K for the year ended December 31, 1990	1-7629	10(b)
*10(c)(2)	—	First Amendment to Exhibit 10(c)(1) effective as of January 1, 1991	HI’s Form 10-K for the year ended December 31, 1991	1-7629	10(f)(2)
*10(c)(3)	—	Second Amendment to Exhibit 10(c)(1) effective as of March 30, 1992	HI’s Form 10-Q for the quarter ended March 31, 1992	1-7629	10(d)
*10(c)(4)	—	Third Amendment to Exhibit 10(c)(1) effective as of November 4, 1992	HI’s Form 10-K for the year ended December 31, 1992	1-7629	10(f)(4)
*10(c)(5)	—	Fourth Amendment to Exhibit 10(c)(1) effective as of January 1, 1993	HI’s Form 10-K for the year ended December 31, 1992	1-7629	10(f)(5)
*10(c)(6)	—	Fifth Amendment to Exhibit 10(c)(1) effective in part, January 1, 1995, and in part, September 7, 1994	HI’s Form 10-K for the year ended December 31, 1994	1-7629	10(f)(6)
*10(c)(7)	—	Sixth Amendment to Exhibit 10(c)(1) effective as of August 1, 1995	HI’s Form 10-Q for the quarter ended June 30, 1995	1-7629	10(a)
*10(c)(8)	—	Seventh Amendment to Exhibit 10(c)(1) effective as of January 1, 1996	HI’s Form 10-Q for the quarter ended June 30, 1996	1-7629	10(a)
*10(c)(9)	—	Eighth Amendment to Exhibit 10(c)(1) effective as of January 1, 1997	HI’s Form 10-Q for the quarter ended June 30, 1997	1-7629	10(a)
*10(c)(10)	—	Ninth Amendment to Exhibit 10(c)(1) effective in part, January 1, 1997, and in part, January 1, 1998	HI’s Form 10-K for the year ended December 31, 1997	1-3187	10(f)(10)
*10(d)	—	Benefit Restoration Plan of HI effective as of June 1, 1985	HI’s Form 10-Q for the quarter ended March 31, 1987	1-7629	10(c)
*10(e)	—	Benefit Restoration Plan of HI as amended and restated effective as of January 1, 1988	HI’s Form 10-K for the year ended December 31, 1991	1-7629	10(g)(2)
*10(f)	—	CenterPoint Energy, Inc. 1991 Benefit Restoration Plan, as amended and restated effective as of February 25, 2011	CenterPoint Energy’s Form 10-Q for the quarter ended March 31, 2011	1-31447	10.3
*10(g)(1)	—	CenterPoint Energy Benefit Restoration Plan, effective as of January 1, 2008	CenterPoint Energy’s Form 8-K dated December 22, 2008	1-31447	10.1
*10(g)(2)	—	First Amendment to Exhibit 10(g)(1), effective as of February 25, 2011	CenterPoint Energy’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2011	1-31447	10.4
*10(h)(1)	—	HI 1995 Section 415 Benefit Restoration Plan effective August 1, 1995	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(h)(1)
*10(h)(2)	—	First Amendment to Exhibit 10(h)(1) effective as of August 1, 1995	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(h)(2)

138

*10(i)	—	CenterPoint Energy 1985 Deferred Compensation Plan, as amended and restated effective January 1, 2003	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2003	1-31447	10.1
*10(j)(1)	—	Reliant Energy 1994 Long- Term Incentive Compensation Plan, as amended and restated effective January 1, 2001	Reliant Energy’s Form 10-Q for the quarter ended June 30, 2002	1-3187	10.6
*10(j)(2)	—	First Amendment to Exhibit 10(j)(1), effective December 1, 2003	CenterPoint Energy’s Form 10-K for the year ended December 31, 2003	1-31447	10(p)(7)
*10(j)(3)	—	Form of Non-Qualified Stock Option Award Notice under Exhibit 10(i)(1)	CenterPoint Energy’s Form 8-K dated January 25, 2005	1-31447	10.6
*10(k)(1)	—	Savings Restoration Plan of HI effective as of January 1, 1991	HI’s Form 10-K for the year ended December 31, 1990	1-7629	10(f)
*10(k)(2)	—	First Amendment to Exhibit 10(k)(1) effective as of January 1, 1992	HI’s Form 10-K for the year ended December 31, 1991	1-7629	10(l)(2)
*10(k)(3)	—	Second Amendment to Exhibit 10(k)(1) effective in part, August 6, 1997, and in part, October 1, 1997	HI’s Form 10-K for the year ended December 31, 1997	1-3187	10(q)(3)
*10(l)(1)	—	Amended and Restated CenterPoint Energy, Inc. 1991 Savings Restoration Plan, effective as of January 1, 2008	CenterPoint Energy’s Form 8-K dated December 22, 2008	1-31447	10.4
*10(l)(2)	—	First Amendment to Exhibit 10(l)(1), effective as of February 25, 2011	CenterPoint Energy’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2011	1-31447	10.5
*10(m)(1)	—	CenterPoint Energy Savings Restoration Plan, effective as of January 1, 2008	CenterPoint Energy’s Form 8-K dated December 22, 2008	1-31447	10.3
*10(m)(2)	—	First Amendment to Exhibit 10(m)(1), effective as of February 25, 2011	CenterPoint Energy’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2011	1-31447	10.6
*10(n)(1)	—	CenterPoint Energy Outside Director Benefits Plan, as amended and restated effective June 18, 2003	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2003	1-31447	10.6
*10(n)(2)	—	First Amendment to Exhibit 10(n)(1) effective as of January 1, 2004	CenterPoint Energy’s Form 10-Q for the quarter ended June 30, 2004	1-31447	10.6
*10(n)(3)	—	CenterPoint Energy Outside Director Benefits Plan, as amended and restated effective December 31, 2008	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(n)(3)
*10(o)	—	CenterPoint Energy Executive Life Insurance Plan, as amended and restated effective June 18, 2003	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2003	1-31447	10.5
*10(p)	—	Employment and Supplemental Benefits Agreement between HL&P and Hugh Rice Kelly	HI’s Form 10-Q for the quarter ended March 31, 1987	1-7629	10(f)
10(q)(1)	—	Stockholder’s Agreement dated as of July 6, 1995 between Houston Industries Incorporated and Time Warner Inc.	Schedule 13-D dated July 6, 1995	5-19351	2
10(q)(2)	—	Amendment to Exhibit 10(q)(1) dated November 18, 1996	HI’s Form 10-K for the year ended December 31, 1996	1-7629	10(x)(4)
*10(r)(1)	—	Houston Industries Incorporated Executive Deferred Compensation Trust effective as of December 19, 1995	HI’s Form 10-K for the year ended December 31, 1995	1-7629	10(7)
*10(r)(2)	—	First Amendment to Exhibit 10(r)(1) effective as of August 6, 1997	HI’s Form 10-Q for the quarter ended June 30, 1998	1-3187	10
†10(s)	—	Summary of Certain Compensation Arrangements of Milton Carroll, Executive Chairman of the Board of Directors of CenterPoint Energy

139

*10(t)	—	Reliant Energy, Incorporated and Subsidiaries Common Stock Participation Plan for Designated New Employees and Non-Officer Employees, as amended and restated effective January 1, 2001	CenterPoint Energy’s Form 10-K for the year ended December 31, 2002	1-31447	10(y)(2)
*10(u)(1)	—	Long-Term Incentive Plan of CenterPoint Energy, Inc. (amended and restated effective as of May 1, 2004)	CenterPoint Energy’s Form 10-Q for the quarter ended June 30, 2004	1-31447	10.5
*10(u)(2)	—	First Amendment to Exhibit (u)(1), effective January 1, 2007	CenterPoint Energy’s Form 10-Q for the quarter ended March 31, 2007	1-31447	10.5
*10(u)(3)	—	Form of Non-Qualified Stock Option Award Agreement under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated January 25, 2005	1-31447	10.1
*10(u)(4)	—	Form of Restricted Stock Award Agreement under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated January 25, 2005	1-31447	10.2
*10(u)(5)	—	Form of Performance Share Award under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated January 25, 2005	1-31447	10.3
*10(u)(6)	—	Form of Performance Share Award Agreement for 20XX-20XX Performance Cycle under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated February 22, 2006	1-31447	10.2
*10(u)(7)	—	Form of Restricted Stock Award Agreement (With Performance Vesting Requirement) under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated February 21, 2005	1-31447	10.2
*10(u)(8)	—	Form of Stock Award Agreement (With Performance Goal) under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated February 22, 2006	1-31447	10.3
*10(u)(9)	—	Form of Performance Share Award Agreement for 20XX — 20XX Performance Cycle under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated February 21, 2007	1-31447	10.1
*10(u)(10)	—	Form of Stock Award Agreement (With Performance Goal) under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated February 21, 2007	1-31447	10.2
*10(u)(11)	—	Form of Stock Award Agreement (Without Performance Goal) under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated February 21, 2007	1-31447	10.3
*10(u)(12)	—	Form of Performance Share Award Agreement for 20XX — 20XX Performance Cycle under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated February 20, 2008	1-31447	10.1
*10(u)(13)	—	Form of Stock Award Agreement (With Performance Goal) under Exhibit 10(u)(1)	CenterPoint Energy’s Form 8-K dated February 20, 2008	1-31447	10.2
10(v)(1)	—	Master Separation Agreement entered into as of December 31, 2000 between Reliant Energy, Incorporated and Reliant Resources, Inc.	Reliant Energy’s Form 10-Q for the quarter ended March 31, 2001	1-3187	10.1
10(v)(2)	—	First Amendment to Exhibit 10(v)(1) effective as of February 1, 2003	CenterPoint Energy’s Form 10-K for the year ended December 31, 2002	1-31447	10(bb)(5)
10(v)(3)	—	Employee Matters Agreement, entered into as of December 31, 2000, between Reliant Energy, Incorporated and Reliant Resources, Inc.	Reliant Energy’s Form 10-Q for the quarter ended March 31, 2001	1-3187	10.5
10(v)(4)	—	Retail Agreement, entered into as of December 31, 2000, between Reliant Energy, Incorporated and Reliant Resources, Inc.	Reliant Energy’s Form 10-Q for the quarter ended March 31, 2001	1-3187	10.6
10(v)(5)	—	Tax Allocation Agreement, entered into as of December 31, 2000, between Reliant Energy, Incorporated and Reliant Resources, Inc.	Reliant Energy’s Form 10-Q for the quarter ended March 31, 2001	1-3187	10.8
10(w)(1)	—	Separation Agreement entered into as of August 31, 2002 between CenterPoint Energy and Texas Genco	CenterPoint Energy’s Form 10-K for the year ended December 31, 2002	1-31447	10(cc)(1)
10(w)(2)	—	Transition Services Agreement, dated as of August 31, 2002, between CenterPoint Energy and Texas Genco	CenterPoint Energy’s Form 10-K for the year ended December 31, 2002	1-31447	10(cc)(2)
10(w)(3)	—	Tax Allocation Agreement, dated as of August 31, 2002, between CenterPoint Energy and Texas Genco	CenterPoint Energy’s Form 10-K for the year ended December 31, 2002	1-31447	10(cc)(3)

140

*10(x)	—	Retention Agreement effective October 15, 2001 between Reliant Energy and David G. Tees	Reliant Energy’s Form 10-K for the year ended December 31, 2001	1-3187	10(jj)
*10(y)	—	Retention Agreement effective October 15, 2001 between Reliant Energy and Michael A. Reed	Reliant Energy’s Form 10-K for the year ended December 31, 2001	1-3187	10(kk)
*10(z)	—	Non-Qualified Unfunded Executive Supplemental Income Retirement Plan of Arkla, Inc. effective as of August 1, 1983	CenterPoint Energy’s Form 10-K for the year ended December 31, 2002	1-31447	10(gg)
*10(aa)(1)	—	Deferred Compensation Plan for Directors of Arkla, Inc. effective as of November 10, 1988	CenterPoint Energy’s Form 10-K for the year ended December 31, 2002	1-31447	10(hh)(1)
*10(aa)(2)	—	First Amendment to Exhibit 10(aa)(1) effective as of August 6, 1997	CenterPoint Energy’s Form 10-K for the year ended December 31, 2002	1-31447	10(hh)(2)
*10(bb)(1)	—	CenterPoint Energy, Inc. Deferred Compensation Plan, as amended and restated effective January 1, 2003	CenterPoint Energy’s Form 10-Q for the quarter ended June 30, 2003	1-31447	10.2
*10(bb)(2)	—	First Amendment to Exhibit 10(bb)(1) effective as of January 1, 2008	CenterPoint Energy’s Form 8-K dated February 20, 2008	1-31447	10.4
*10(bb)(3)	—	CenterPoint Energy 2005 Deferred Compensation Plan, effective January 1, 2008	CenterPoint Energy’s Form 8-K dated February 20, 2008	1-31447	10.3
*10(bb)(4)	—	Amended and Restated CenterPoint Energy 2005 Deferred Compensation Plan, effective January 1, 2009	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2008	1-31447	10.1
*10(cc)(1)	—	CenterPoint Energy Short Term Incentive Plan, as amended and restated effective January 1, 2003	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2003	1-31447	10.3
*10(cc)(2)	—	Second Amendment to Exhibit 10(cc)(1)	CenterPoint Energy’s Form 8-K dated December 10, 2009	1-31447	10.1
*10(dd)(1)	—	CenterPoint Energy Stock Plan for Outside Directors, as amended and restated effective May 7, 2003	CenterPoint Energy’s Form 10-K for the year ended December 31, 2003	1-31447	10(ll)
*10(dd)(2)	—	First Amendment to Exhibit 10(dd)(1)	CenterPoint Energy’s Form 10-Q for the quarter ended March 31, 2010	1-31447	10.2
*10(dd)(3)	—	Second Amendment to Exhibit 10(dd)(1)	CenterPoint Energy’s Registration Statement on Form S-8	333-173660	4.6
*†10(dd)(4)	—	Third Amendment to Exhibit 10(dd)(1)
10(ee)	—	City of Houston Franchise Ordinance	CenterPoint Energy’s Form 10-Q for the quarter ended June 30, 2005	1-31447	10.1
10(ff)	—	Letter Agreement dated March 16, 2006 between CenterPoint Energy and John T. Cater	CenterPoint Energy’s Form 10-Q for the quarter ended March 30, 2006	1-31447	10
10(gg)(1)	—	Amended and Restated HL&P Executive Incentive Compensation Plan effective as of January 1, 1985	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2008	1-31447	10.2
10(gg)(2)	—	First Amendment to Exhibit 10(gg)(1) effective as of January 1, 2008	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2008	1-31447	10.3
*10(hh)(1)	—	Executive Benefits Agreement by and between HL&P and Thomas R. Standish effective August 20, 1993	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(hh)(1)
*10(hh)(2)	—	First Amendment to Exhibit 10(hh)(1) effective as of December 31, 2008	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(hh)(2)
*10(ii)(1)	—	Executive Benefits Agreement by and between HL&P and David M. McClanahan effective August 24, 1993	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(ii)(1)
*10(ii)(2)	—	First Amendment to Exhibit 10(ii)(1) effective as of December 31, 2008	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(ii)(2)
*10(jj)(1)	—	Executive Benefits Agreement by and between HL&P and Joseph B. McGoldrick effective August 30, 1993	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(jj)(1)

141

*10(jj)(2)	—	First Amendment to Exhibit 10(jj)(1) effective as of December 31, 2008	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(jj)(2)
*†10(kk)(1)	—	Letter Agreement dated January 23, 2015 between CenterPoint Energy and William D. Rogers
*10(ll)(1)	—	CenterPoint Energy, Inc. 2009 Long Term Incentive Plan	CenterPoint Energy’s Schedule 14A dated March 13, 2009	1-31447	A
*†10(ll)(2)	—	Form of Qualified Performance Award Agreement for 20XX — 20XX Performance Cycle under Exhibit 10(ll)(1)
*†10(ll)(3)	—	Form of Qualified Performance Award Agreement for Executive Chairman 20XX — 20XX Performance Cycle under Exhibit 10(ll)(1)
*10(ll)(4)	—	Form of Restricted Stock Unit Award Agreement (With Performance Goal) under Exhibit 10(ll)(1)	CenterPoint Energy’s Form 8-K dated February 28, 2012	1-31447	10.2
*10(ll)(5)	—	Form of Restricted Stock Unit Award Agreement (Service-Based Vesting) under Exhibit 10(ll)(1)	CenterPoint Energy’s Form 8-K dated February 28, 2012	1-31447	10.3
*†10(ll)(6)	—	Form of Restricted Stock Unit Award Agreement (Retention, Service-Based Vesting) under Exhibit 10(ll)(1)
*†10(ll)(7)	—	Form of Executive Chairman Restricted Stock Unit Award Agreement (Service-Based Vesting) under Exhibit 10(ll)(1)
*†10(ll)(8)	—	Form of Executive Chairman Restricted Stock Unit Award Agreement (Retention, Service-Based Vesting) under Exhibit 10(ll)(1)
†10(mm)	—	Summary of non-employee director compensation
†10(nn)	—	Summary of named executive officer compensation
10(oo)	—	Form of Executive Officer Change in Control Agreement	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(nn)
10(pp)	—	Form of Corporate Officer Change in Control Agreement	CenterPoint Energy’s Form 10-K for the year ended December 31, 2008	1-31447	10(oo)
10(qq)	—	Change in Control Plan	CenterPoint Energy’s Form 8-K/A dated December 11, 2014	1-31447	10.1
10(rr)	—	Master Formation Agreement, dated as of March 14, 2013, among CenterPoint Energy, OGE, Bronco Midstream Holdings, LLC and Bronco Midstream Holdings II, LLC	CenterPoint Energy’s Form 8-K dated March 14, 2013	1-31447	2.1
10(ss)	—	Commitment Letter dated March 14, 2013 by and among CenterPoint Energy, Enogex LLC, Citigroup Global Markets Inc., UBS Loan Finance LLC and UBS Securities LLC relating to a $1,050,000,000 3-year unsecured term loan facility	CenterPoint Energy’s Form 8-K dated March 14, 2013	1-31447	10.1
10(tt)	—	Commitment Letter dated March 14, 2013 by and among CenterPoint Energy, Inc., Enogex LLC, Citigroup Global Markets Inc., UBS Loan Finance LLC and UBS Securities LLC relating to a $1,400,000,000 5-year unsecured revolving credit facility	CenterPoint Energy’s Form 8-K dated March 14, 2013	1-31447	10.2
10(uu)	—	First Amended and Restated Agreement of Limited Partnership of CEFS dated as of May 1, 2013	CenterPoint Energy’s Form 8-K dated May 1, 2013	1-31447	10.1
10(vv)	—	First Amendment to the First Amended and Restated Agreement of Limited Partnership of CEFS dated as of July 30, 2013	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2013	1-31447	10.1
10(ww)	—	Second Amended and Restated Agreement of Limited Partnership of Enable Midstream Partners, LP dated April 16, 2014	CenterPoint Energy’s Form 8-K dated April 16, 2014	1-31447	10.1
10(xx)	—	Amended and Restated Limited Liability Company Agreement of CNP OGE GP LLC dated as of May 1, 2013	CenterPoint Energy’s Form 8-K dated May 1, 2013	1-31447	10.2

142

10(yy)(1)	—	Second Amended and Restated Limited Liability Company Agreement of Enable GP, LLC dated as of July 30, 2013	CenterPoint Energy’s Form 10-Q for the quarter ended September 30, 2013	1-31447	10.2
10(yy)(2)	—	First Amendment to the Second Amended and Restated Limited Liability Company Agreement of Enable GP, LLC dated as of April 16, 2014	CenterPoint Energy’s Form 8-K dated April 16, 2014	1-31447	10.2
10(zz)	—	Registration Rights Agreement dated as of May 1, 2013 by and among CEFS, CERC Corp., OGE Enogex Holdings LLC, and Enogex Holdings LLC	CenterPoint Energy’s Form 8-K dated May 1, 2013	1-31447	10.3
10(aaa)	—	Omnibus Agreement dated as of May 1, 2013 among CenterPoint Energy, OGE, Enogex Holdings LLC and CEFS	CenterPoint Energy’s Form 8-K dated May 1, 2013	1-31447	10.4
10(bbb)	—	Agreement, dated June 26, 2013, by and between CERC Corp. and C. Gregory Harper	CenterPoint Energy’s Form 10-Q for the quarter ended June 30, 2013	1-31447	10.6
10(ccc)	—	Omnibus Amendment to CenterPoint Energy, Inc. Benefit Plans, dated May 23, 2013	CenterPoint Energy’s Form 10-K for the year ended December 31, 2013	1-31447	10(zz)
†12	—	Computation of Ratio of Earnings to Fixed Charges
†21	—	Subsidiaries of CenterPoint Energy
†23.1	—	Consent of Deloitte & Touche LLP
†23.2	—	Consent of Deloitte & Touche LLP, Independent Registered Public Accounting Firm of Enable Midstream Partners, LP
†31.1	—	Rule 13a-14(a)/15d-14(a) Certification of Scott M. Prochazka
†31.2	—	Rule 13a-14(a)/15d-14(a) Certification of Gary L. Whitlock
†32.1	—	Section 1350 Certification of Scott M. Prochazka
†32.2	—	Section 1350 Certification of Gary L. Whitlock
99.1	—	$1,400,000,000 Credit Agreement, dated as of May 1, 2013, among CEFS as Borrower, and the banks named therein	CenterPoint Energy’s Form 8-K dated May 1, 2013	1-31447	99.2
99.2	—	First Amendment and Waiver to Revolving Credit Agreement dated as of January 23, 2014 by and among Enable Midstream Partners, LP, the lenders party thereto and Citibank, N.A., as agent	CenterPoint Energy’s Form 10-K for the year ended December 31, 2013	1-31447	99.3
99.3	—	Financial Statements of Enable Midstream Partners, LP as of December 31, 2014 and 2013 and for the years ended December 31, 2014, 2013 and 2012	Part II, Item 8 of Enable Midstream Partners, LP’s Form 10-K for the year ended December 31, 2014	001-36413	Item 8
†101.INS	—	XBRL Instance Document
†101.SCH	—	XBRL Taxonomy Extension Schema Document
†101.CAL	—	XBRL Taxonomy Extension Calculation Linkbase Document
†101.DEF	—	XBRL Taxonomy Extension Definition Linkbase Document
†101.LAB	—	XBRL Taxonomy Extension Labels Linkbase Document
†101.PRE	—	XBRL Taxonomy Extension Presentation Linkbase Document

143

EX-10.(S)

Exhibit 10(s)

CenterPoint Energy, Inc.

Summary of Certain Compensation Arrangements

of the Executive Chairman of the Board

The following is a summary of certain compensation arrangements payable to Milton Carroll, the Executive Chairman of the Board of Directors (the “Board”) of CenterPoint Energy, Inc. (the “Company”), effective February 2014:

• Mr. Carroll's annual base salary was increased to $600,000 effective as of January 1, 2014 and continuing thereafter until the termination of Mr. Carroll's service as Executive Chairman of the Board or as otherwise modified by the Board;

• Mr. Carroll was granted an award of 30,000 restricted stock units to be payable on June 1, 2016 contingent on his continued service as Chairman on that date; and

• Mr. Carroll will receive a 2014 long term incentive compensation award under the Company's long term incentive plan that will be allocated between performance shares and stock awards on the same basis as 2014 awards to be made to other executive officers, with an incentive compensation target for Mr. Carroll equal to 200% of base salary.

Effective February 2015, Mr. Carroll was granted an additional award of 30,000 restricted stock units

to be payable on June 1, 2017 contingent on his continued service as Chairman on that date. No changes were made to Mr. Carroll's annual base salary or his long-term incentive target in 2015.

EX-10.(DD)(4)

Exhibit 10(dd)(4)

CENTERPOINT ENERGY, INC.

STOCK PLAN FOR OUTSIDE DIRECTORS

(As Amended and Restated Effective May 7, 2003)

Third Amendment

WHEREAS,CenterPoint Energy, Inc., a Texas corporation, maintains, and shareholders of the Company have approved, the CenterPoint Energy, Inc. Stock Plan for Outside Directors, as amended and restated effective May 7, 2003, and as thereafter amended (the "Plan"); and

WHEREAS,the Company has reserved the right under Section 6.1 to amend the plan; and

WHEREAS,the Company desires to amend the Plan to modify the method of determining the number of shares of common stock, par value $0.01 per share, of the Company ("Common Stock") that may be awarded to participants in the Plan;

NOW, THEREFORE,in consideration of the foregoing, the Plan is hereby amended, effective January 1, 2015, as follows:

1.Article II of the Plan is hereby amended to add two new definitions thereto as follows:

'"FAIR MARKET VALUE' means, as of a particular date, (i) if shares of Common Stock are listed on a national securities exchange, the closing sales price per share of Common Stock on the consolidated transaction reporting system for the principal national securities exchange on which shares of Common Stock are listed on that date, or, if there shall have been no such sale so reported on that date, on the date immediately preceding the date on which such a sale was so reported, (ii) if the Common Stock is not so listed, the average of the closing bid and asked price on that date, or, if there are no quotations available for such date, on the date immediately preceding the date on which such quotations shall be available, as reported by an inter-dealer quotation system, (iii) if shares of Common Stock are not publicly traded, the most recent value determined by an independent appraiser appointed by the Company for such purpose, or (iv) if none of the above are applicable, the fair market value of a share of Common Stock as determined in good faith by the Board."

"'STOCK AWARD AMOUNT' means a number of shares of Common Stock equal to (i) a dollar amount determined by the Board in its discretion

divided by (ii) the Fair Market Value of the Common Stock on the relevant award date, rounded to the nearest whole share."

2. Section 5.1 of the Plan is hereby amended to read as follows:

"5.1 Initial Awards: On or after the date an individual first becomes an Outside Director, at the discretion of the Board, such Outside Director may be granted a one-time, initial Stock Award consisting of the right to receive the number of shares of Common Stock equal to the Stock Award Amount, as determined by the Board, with such award subject to the terms, conditions and limitations set forth in this Plan; provided, however, that such Outside Director is then in office as of the grant date of such initial Stock Award. Any Stock Award under this Section 5.1 shall be in addition to, and not in lieu of, any Stock Award granted under Section 5.2."

3. Section 5.2 of the Plan is hereby amended to read as follows:

"5.2 Annual Awards: As of each Annual Award Date, at the discretion of the Board, each Outside Director then in office may be granted a Stock Award consisting of the right to receive the number of shares of Common Stock equal to the Stock Award Amount, as determined by the Board, with such awards subject to the terms, conditions and limitations set forth in this Plan."

IN WITNESS WHEREOF, CenterPoint Energy, Inc. has caused these presents to be executed by its duly authorized officer in a number of copies, all of which shall constitute one and the same instrument, which may be sufficiently evidenced by any executed copy hereof, on this 28th day of December, 2014, and effective as of January 1, 2015.

	CENTERPOINT ENERGY, INC.
By	/s/ Scott M. Prochazka
	Scott M. Prochazka
	President and Chief Executive Officer

ATTEST:

/s/ Vincent A. Mercaldi

Vincent A. Mercaldi

Assistant Corporate Secretary

EX-10.(KK)(1)

Exhibit 10(kk)(1)

January 23, 2015

Mr. William D. Rogers

2 Sutton Place South 7-D New York, NY 10022

Dear Bill:

I am pleased to extend to you an offer of employment with CenterPoint Energy (the

"Company"), as the Executive Vice President of Finance & Accounting reporting to me.

Your offer includes the following:

Equity Signing Incentive:

As of your employment date, you will be awarded 18,000 CenterPoint Energy

restricted stock units with the following time vesting schedule:

10,000 on the first anniversary of your employment date

8,000 on the second anniversary of your employment date

Salary:

$34,166.67 per month ($410,000 per year)

Incentive Compensation:

Short-Term Incentive (STI) plan participation - You will be eligible to participate in

the 2015 STI plan. Your initial target award level is 75% of your 2015 plan year eligible

earnings calculated from your hire date. Annual plan year award funding is based upon

the achievement of a combination of corporate goals, approved by the Compensation

Committee of the Board of Directors (Committee). Your actual payout, if any, is based

on achievement of corporate goals as well as your individual performance within the

available funding.

Long-Term Incentive (LTI) plan participation - Subject to Committee approval, you

will be granted a 2015-2017 LTIP award with a target ineentive level of 140% of your

annual base salary. This incentive may be granted in a combination of CenterPoint

Energy performance share units, restricted stock units, stock options, or other

authorized form. For your information, the 2014 award was made up of 30% restricted

stock units, 40% performance shares based on total shareholder return versus peer

companies and 30% performance shares based on achieving a core operating income

goal.

Relocation Assistance:

If requested, relocation assistance will be provided pursuant to the Company's

relocation program. A summary of the program is attached. If you accept the

Company's reimbursement for relocation expenses you will be required to repay 100%

of the relocation expenses if you voluntarily resign within the first year after the effective

date of your employment and 50% within two years.

Executive Benefits:

You are eligible for several executive benefits including the Change In Control Plan.

Detail of these benefits will be provided upon your start of employment or upon request.

Other Benefits:

Participation in CenterPoint Energy's industry competitive benefits package. Additional information about these plans can be accessed online at

www.CenterPointEnergy.com/hr or a summary will be provided upon your request.

Vacation:

Four (4) weeks of vaGation each calendar year until such time as your service qualifies

you for additional vacation under the vacation policy.

Anticipated Start Date:

February 16, 2015, or such other date as is mutually agreed in order to accommodate a

reasonable request.

Conditions:

This offer is contingent on the Board of Director's ratification of your appointment.

This offer is contingent upon successful completion of our background investigation

and a drug screen; which will be conducted prior to your employment date.

The Immigration Reform & Control Act of 1990 requires that all employers verify that

persons hired by their firms are authorized to be employed in the United

States. Documents verifying this eligibility will need to be provided upon reporting to

work.

Where provisions in this letter refer to CenterPoint Energy's compensation or benefits

plans or to policies of CenterPoint Energy, the applicable plan document or policy

statement will govern administration of the plan or application of the policy in all cases.

This letter neither constitutes nor may be construed as an employment contract

between the Company and you for any period of time. Employment with CenterPoint

Energy is an at-will employment relationship governed by applicable federal and state

laws.

If you have any questions, please do not hesitate to give me a call at (713) 207-8480, or

you may also contact Sue Ortenstone, SVP & CHRO at (713) 207-7567.

To indicate your acceptance of this employment offer, please sign the original offer

letter and return to me.

I have enjoyed getting to know you as we have gone through the interview process, and

I believe that you will be a great addition to or team and contribute to achieving our

vision of leading the nation in delivering energy, service and value.

Sincerely,

/s/ Scott Prochazka

Scott Prochazka

President and CEO

/s/ William D. RogersWilliam D. RogersJanuary 25, 2015

Signature                 Name (Print)             Date

EX-10.(LL)(2)

Exhibit 10(ll)(2)

CENTERPOINT ENERGY, INC.

2009 LONG TERM INCENTIVE PLAN

FORM OF QUALIFIED PERFORMANCE AWARD AGREEMENTJanuary 1, 20XX– December 31, 20XX PERFORMANCE CYCLE

Pursuant to this Qualified Performance Award Agreement (the “Award Agreement”), CENTERPOINT ENERGY, INC. (the “Company”) hereby grants this Qualified Performance Award (the “Award”) covering the target number of shares of Common Stock (the “Target Shares”) as specified in the award notice on this Computershare web site (the “Award Notice”), pursuant to the CENTERPOINT ENERGY, INC. 2009 LONG TERM INCENTIVE PLAN (the “Plan”). The number of Target Shares shall be subject to adjustment as provided in Section 14 of the Plan, conditioned upon the Company’s achievement of the Performance Goals over the course of the 20XX – 20XX Performance Cycle, and subject to the following terms and conditions:

1.Relationship to the Plan. The Award is subject to all of the terms, conditions and provisions of the Plan in effect on the date hereof and administrative interpretations thereunder, if any, adopted by the Committee. To the extent that any provision of this Award Agreement conflicts with the express terms of the Plan, it is hereby acknowledged and agreed that the terms of the Plan shall control and, if necessary, the applicable provisions of this Award Agreement shall be hereby deemed amended so as to carry out the purpose and intent of the Plan. References to the Participant herein also include the heirs or other legal representatives of the Participant.

2.Definitions. Except as defined herein, capitalized terms shall have the same meanings ascribed to them under the Plan. For purposes of this Award Agreement:

“Achievement Percentage” means the percentage of achievement determined by the Committee after the end of the Performance Cycle in accordance with Section 3 that reflects the extent to which the Company achieved the Performance Goals during the Performance Cycle.

“Change in Control Closing Date” means the date a Change in Control is c onsummated during the Performance Cycle.

“Disability” means that the Participant is (i) eligible for and in receipt of benefits under the Company’s long-term disability plan and (ii) not eligible for Retirement.

“Employment” means employment with the Company or any of its Subsidiaries.

“Performance Cycle” means the period beginning on January 1, 20XX and ending on December 31, 20XX.

“Performance Goal” means the standards established by the Committee for the Performance Cycle to determine in whole or in part the number of Vested Shares pursuant to Section 4, which are specified in the performance goals section of the Award Notice and made a part hereof for all purposes.

1

“Retirement” means a Separation from Service (i) on or after the attainment of age 55 and (ii) with at least five years of Employment; provided, however, that such Separation from Service is not by the Company for Cause and occurs on or after July 1 of the calendar year in which this Award is granted. For purposes of this Award Agreement, “Cause” means the Participant’s (a) gross negligence in the performance of his or her duties, (b) intentional and continued failure to perform his or her duties, (c) intentional engagement in conduct which is materially injurious to the Company or its Subsidiaries (monetarily or otherwise) or (d) conviction of a felony or a misdemeanor involving moral turpitude. For this purpose, an act or failure to act on the part of the Participant will be deemed “intentional” only if done or omitted to be done by the Participant not in good faith and without reasonable belief that his or her action or omission was in the best interest of the Company, and no act or failure to act on the part of the Participant will be deemed “intentional” if it was due primarily to an error in judgment or negligence.

“Separation from Service” means a separation from service with the Company or any of its Subsidiaries within the meaning of Treasury Regulation § 1.409A-1(h) (or any successor regulation).

“Target Shares” means the actual number of shares originally granted to the Participant pursuant to the Award Notice.

“Vested Shares” means the shares of Common Stock actually distributable to the Participant following the Participant’s satisfaction of the vesting provisions of Section 5 and, if applicable, the determination by the Committee of the extent to which the Company has achieved the Performance Goals for the Performance Cycle pursuant to Section 4.

3.Establishment of Award Account. The grant of Target Shares pursuant to this Award Agreement shall be implemented by a credit to a bookkeeping account maintained by the Company evidencing the Participant’s unfunded and unsecured right to receive shares of Common Stock of the Company, which right shall be subject to the terms, conditions and restrictions set forth in the Plan and to the further terms, conditions and restrictions set forth in this Award Agreement. Except as otherwise provided in this Award Agreement, the Target Shares of Common Stock credited to the Participant’s bookkeeping account may not be sold, assigned, transferred, pledged or otherwise encumbered until the Participant has been registered as a holder of shares of Common Stock on the records of the Company as provided in Section 6 or 7 of this Award Agreement.

4.Award Opportunity.

(a)Except as otherwise provided in Section 5(b)(ii) and Section 6, the Participant’s Vested Shares shall be the product of the number of Target Shares and the Achievement Percentage that is based upon the Committee’s determination of whether and to what extent the Performance Goals have been achieved during the Performance Cycle.

(b)No later than 60 days after the close of the Performance Cycle, the Committee shall determine the extent to which each Performance Goal has been achieved. If the Company has performed at or above the threshold level of achievement for a Performance Goal, the Achievement Percentage shall be between X% and X%. In no event shall the Achievement Percentage exceed X%. Upon completing its determination of the level at which the Performance Goals have been achieved, the Committee shall notify the

2

Participant, in the form and manner as determined by the Committee, of the number of Vested Shares that will be issued to the Participant pursuant to Section 6.

5.Vesting of Shares.

(a)Unless earlier forfeited in accordance with Section 5(b)(i) or unless earlier vested in accordance with Section 5(b)(ii) or Section 6, the Participant’s right to receive shares pursuant to this Award Agreement, if any, shall vest on the last day of the Performance Cycle (with the number of shares, if any, based on the Committee’s determination that each Performance Goal has been met (as provided in Section 4)). As soon as administratively practicable, but in no event later than 70 days, after the close of the Performance Cycle, the Committee shall notify the Participant as required by Section 4 of the level at which the Performance Goals established for the Performance Cycle have been achieved.

(b)If the Participant’s Separation from Service date occurs prior to the close of the Performance Cycle or the occurrence of a Change in Control, then the applicable of the following clauses shall apply with respect to the Target Shares subject to this Award Agreement:

(i)Forfeiture of Entire Award. If the Participant’s Employment is terminated, such that the Participant has a Separation from Service, by the Company or any of its Subsidiaries or by the Participant for any reason other than due to death, Disability or Retirement, then the Participant’s right to receive any Target Shares shall be forfeited in its entirety as of the date of such Separation from Service.

(ii)Death or Disability. If the Participant’s Employment is terminated due to death or Disability, the Participant’s right to receive the Target Shares shall vest on the date of such Separation from Service in the proportion of the number of days elapsed in the Performance Cycle as of the date of Separation from Service by the total number of days in the Performance Cycle. The Participant’s right to receive any additional shares pursuant to this Award Agreement shall be forfeited at such time.

(iii)Retirement. If the Participant’s Employment is terminated due to Retirement, the Participant’s right to receive shares pursuant to this Award Agreement, if any, shall vest on the date the Committee determines that each Performance Goal has been met (as provided in Section 4) in a pro-rata amount determined by multiplying (1) the number of Vested Shares awarded to the Participant based upon the Committee’s determination of achievement of Performance Goals as provided in Section 4, by (2) a fraction, the numerator of which is the number of days elapsed in the Performance Cycle as of the date of the Participant’s Separation from Service, and the denominator of which is the total number of days in the Performance Cycle.

(c)In accordance with the provisions of this Section 5, the Vested Shares shall be distributed as provided in Section 6 hereof.

6.Distribution Upon a Change in Control. Notwithstanding anything herein to the contrary and without regard to the Performance Goals, if there is a Change in Control during

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the Performance Cycle, upon the Change in Control Closing Date, the Participant’s right to receive the Target Shares shall vest and be settled by the distribution to the Participant of:

(a)shares of Common Stock equal to the Target Shares; plus

(b)shares of Common Stock (rounded up to the nearest whole share) having a Fair Market Value equal to the amount of dividends that would have been declared on the number of such shares determined under clause (a) above during the period commencing at the beginning of the Performance Cycle and ending on the date immediately preceding the Change in Control Closing Date.

with such shares of Common Stock registered in book-entry form with the Company’s transfer agent in the name of the Participant. In lieu of the foregoing distribution in shares, the Committee, in its sole discretion, may direct that such distribution be made to the Participant in a lump cash payment equal to:

(x)    the product of (i) the Fair Market Value per share of Common Stock on the date immediately preceding the Change in Control Closing Date and (ii) the Target Shares; plus

(y)    the amount of dividends that would have been declared on the number of shares of Common Stock determined under clause (a) above during the period commencing at the beginning of the Performance Cycle and ending on the date immediately preceding the Change in Control Closing Date.

Such distribution, whether in the form of shares of Common Stock or, if directed by the Committee, in cash, shall be made to the Participant no later than the 70th day after the Change in Control Closing Date, and shall satisfy the rights of the Participant and the obligations of the Company under this Award Agreement in full. In the event a Change in Control occurs after the Participant has had a Separation from Service due to Retirement, the Target Shares such Participant shall receive under this Section 6 shall be pro-rated based on the number of days that elapsed in the Performance Cycle as of his Separation from Service date over the total number of days in the Performance Cycle.

7.Distribution of Vested Shares.

(a)If the Participant’s right to receive shares pursuant to this Award Agreement has vested pursuant to Section 5(a) or Section 5(b)(iii), a number of shares of Common Stock equal to the number of Vested Shares shall be registered in book-entry form with the Company’s transfer agent in the name of the Participant no later than March 15th of the calendar year following the calendar year in which occurs the last day of the Performance Cycle.

(b)If the Participant’s right to receive shares pursuant to this Award Agreement has vested pursuant to Section 5(b)(ii), a number of shares of Common Stock equal to the number of Vested Shares shall be registered in book-entry form with the Company’s transfer agent in the name of the Participant (or his or her estate, if applicable) not later than the 70th day after the Participant’s Separation from Service date.

(c)The Company shall have the right to withhold applicable taxes from any such distribution of Vested Shares or from other compensation payable to the Participant at the

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time of such vesting and distribution pursuant to Section 11 of the Plan (but subject to compliance with the requirements of Section 409A of the Internal Revenue Code (“Section 409A”), if applicable).

(d)Upon distribution of the Vested Shares pursuant to Section 7(a) or 7(b) above, the Participant shall also be entitled to receive a cash payment equal to the sum of all dividends, if any, declared on the Vested Shares after the commencement of the Performance Cycle but prior to the date the Vested Shares are delivered to the Participant.

8.Confidentiality. The Participant agrees that the terms of this Award Agreement are confidential and that any disclosure to anyone for any purpose whatsoever (save and except disclosure to financial institutions as part of a financial statement, financial, tax and legal advisors, or as required by law) by the Participant or his or her agents, representatives, heirs, children, spouse, employees or spokespersons shall be a breach of this Award Agreement and the Company may elect to revoke the grant made hereunder, seek damages, plus interest and reasonable attorneys’ fees, and take any other lawful actions to enforce this Award Agreement.

9.Notices. For purposes of this Award Agreement, notices to the Company shall be deemed to have been duly given upon receipt of written notice by the Corporate Secretary of CenterPoint Energy, Inc., 1111 Louisiana, Houston, Texas 77002, or to such other address as the Company may furnish to the Participant.

Notices to the Participant shall be deemed effectively delivered or given upon personal, electronic, or postal delivery of written notice to the Participant, the place of Employment of the Participant, the address on record for the Participant at the human resources department of the Company, or such other address as the Participant hereafter designates by written notice to the Company.

10.Shareholder Rights. The Participant shall have no rights of a shareholder with respect to the Target Shares, unless and until the Participant is registered as the holder of shares of Common Stock.

11.Successors and Assigns. This Award Agreement shall bind and inure to the benefit of and be enforceable by the Participant, the Company and their respective permitted successors and assigns except as expressly prohibited herein and in the Plan. Notwithstanding anything herein or in the Plan to the contrary, the Target Shares are transferable by the Participant to Immediate Family Members, Immediate Family Member trusts, and Immediate Family Member partnerships pursuant to Section 13 of the Plan.

12.No Employment Guaranteed. Nothing in this Award Agreement shall give the Participant any rights to (or impose any obligations for) continued Employment by the Company or any Subsidiary or any successor thereto, nor shall it give such entities any rights (or impose any obligations) with respect to continued performance of duties by the Participant.

13.Waiver. Failure of either party to demand strict compliance with any of the terms or conditions hereof shall not be deemed a waiver of such term or condition, nor shall any waiver by either party of any right hereunder at any one time or more times be deemed a waiver of such right at any other time or times. No term or condition hereof shall be deemed to have been waived except by written instrument.

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14.Exclusion from Section 409A. At all times prior to the date that the Committee determines that each Performance Goal has been met (following the last date of the Performance Cycle) or, if applicable under Section 6 or 7(b), the Change in Control Closing Date or the Participant’s Separation from Service, respectively, the benefit payable under this Award Agreement is subject to a substantial risk of forfeiture within the meaning of Treasury Regulation § 1.409A-1(d) (or any successor regulation). Accordingly, this Award is not subject to Section 409A under the short term deferral exclusion, and this Award Agreement shall be interpreted and administered consistent therewith.

15.Compliance with Recoupment Policy. Any amounts payable, paid, or distributed under this Award Agreement are subject to the recoupment policy of the Company as in effect from time to time.

16.Modification of Award Agreement. Any modification of this Award Agreement shall be binding only if evidenced in writing and signed by an authorized representative of the Company.

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EX-10.(LL)(3)

Exhibit 10(ll)(3)

CENTERPOINT ENERGY, INC.

2009 LONG TERM INCENTIVE PLAN

FORM OF QUALIFIED PERFORMANCE AWARD AGREEMENT FOR EXECUTIVE CHAIRMANJANUARY 1, 20XX – DECEMBER 31, 20XX PERFORMANCE CYCLE

Pursuant to this Qualified Performance Award Agreement (the “Award Agreement”) and conditioned upon shareholder approval of the material terms of the performance goals under the CENTERPOINT ENERGY, INC. 2009 LONG TERM INCENTIVE PLAN (the “Plan”) at the 2015 annual stockholder meeting of CENTERPOINT ENERGY, INC. (the “Company”), the Company hereby grants to the Participant, an employee of the Company, this Qualified Performance Award (the “Award”) covering the target number of shares of Common Stock (the “Target Shares”) as specified in the award notice on this Computershare web site (the “Award Notice”). The number of Target Shares shall be subject to adjustment as provided in Section 14 of the Plan, conditioned upon the Company’s achievement of the Performance Goals over the course of the 20XX – 20XX Performance Cycle, and subject to the following terms and conditions:

1.Relationship to the Plan. The Award is subject to all of the terms, conditions and provisions of the Plan in effect on the date hereof and administrative interpretations thereunder, if any, adopted by the Committee To the extent that any provision of this Award Agreement conflicts with the express terms of the Plan, it is hereby acknowledged and agreed that the terms of the Plan shall control and, if necessary, the applicable provisions of this Award Agreement shall be hereby deemed amended so as to carry out the purpose and intent of the Plan. References to the Participant herein also include the heirs or other legal representatives of the Participant.

2.Stockholder Approval. Notwithstanding anything in this Award Agreement to the contrary, the Participant hereby acknowledges and agrees that the Award and the Participant’s rights thereunder shall be subject to and conditioned upon approval by the Company’s stockholders of the material terms of the performance goals under the Plan at the Company’s 2015 annual stockholder meeting. If the Company’s stockholders do not approve the amendment and restatement of the Plan at the Company’s 2015 annual stockholder meeting, the Award shall be voided, rescinded and cancelled.

3.Definitions. Except as defined herein, capitalized terms shall have the same meanings ascribed to them under the Plan. For purposes of this Award Agreement:

“Achievement Percentage” means the percentage of achievement determined by the Committee after the end of the Performance Cycle in accordance with Section 4 that reflects the extent to which the Company achieved the Performance Goals during the Performance Cycle.

“Change in Control Closing Date” means the date a Change in Control is consummated during the Performance Cycle.

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“Disability” means that the Participant is (i) eligible for and in receipt of benefits under the Company’s long-term disability plan and (ii) not eligible for Retirement.

“Employment” means employment with the Company or any of its Subsidiaries.

“Performance Cycle” means the period beginning on January 1, 20XX and ending on December 31, 20XX.

“Performance Goal” means the standards established by the Committee for the Performance Cycle to determine in whole or in part the number of Vested Shares pursuant to Section 5, which are specified in the performance goals section of the Award Notice and made a part hereof for all purposes.

“Retirement” means a termination of Employment that is also a Separation from Service (i) on or after the attainment of age 55 and (ii) with at least five years of service; provided, however, that such termination of Employment is not by the Company for Cause and occurs on or after July 1 of the calendar year in which this Award is granted. For purposes of this Award Agreement, “Cause” means the Participant’s (a) gross negligence in the performance of his or her duties, (b) intentional and continued failure to perform his or her duties, (c) intentional engagement in conduct which is materially injurious to the Company or its Subsidiaries (monetarily or otherwise) or (d) conviction of a felony or a misdemeanor involving moral turpitude. For this purpose, an act or failure to act on the part of the Participant will be deemed “intentional” only if done or omitted to be done by the Participant not in good faith and without reasonable belief that his or her action or omission was in the best interest of the Company, and no act or failure to act on the part of the Participant will be deemed “intentional” if it was due primarily to an error in judgment or negligence.

“Separation from Service” means a separation from service with the Company or any of its Subsidiaries within the meaning of Treasury Regulation § 1.409A-1(h) (or any successor regulation).

“Target Shares” means the actual number of shares originally granted to the Participant pursuant to the Award Notice.

“Vested Shares” means the shares of Common Stock actually distributable to the Participant following the Participant’s satisfaction of the vesting provisions of Section 6 and, if applicable, the determination by the Committee of the extent to which the Company has achieved the Performance Goals for the Performance Cycle pursuant to Section 5.

4.Establishment of Award Account. The grant of Target Shares pursuant to this Award Agreement shall be implemented by a credit to a bookkeeping account maintained by the Company evidencing the Participant’s unfunded and unsecured right to receive shares of Common Stock of the Company, which right shall be subject to the terms, conditions and restrictions set forth in the Plan and to the further terms, conditions and restrictions set forth in this Award Agreement. Except as otherwise provided in this Award Agreement, the Target Shares of Common Stock credited to the Participant’s bookkeeping account may not be sold, assigned, transferred, pledged or otherwise encumbered until the Participant has been registered as a holder of shares of Common Stock on the records of the Company as provided in Section 7 or 8 of this Award Agreement.

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5.Award Opportunity.

(a)Except as otherwise provided in Section 6(b)(ii) and Section 7, the Participant’s Vested Shares shall be the product of the number of Target Shares and the Achievement Percentage that is based upon the Committee’s determination of whether and to what extent the Performance Goals have been achieved during the Performance Cycle.

(b)No later than 60 days after the close of the Performance Cycle, the Committee shall determine the extent to which each Performance Goal has been achieved. If the Company has performed at or above the threshold level of achievement for a Performance Goal, the Achievement Percentage shall be between X% and X%. In no event shall the Achievement Percentage exceed X%. Upon completing its determination of the level at which the Performance Goals have been achieved, the Committee shall notify the Participant, in the form and manner as determined by the Committee, of the number of Vested Shares that will be issued to the Participant pursuant to Section 7.

6.Vesting of Shares.

(a)Unless earlier forfeited in accordance with Section 6(b)(i) or unless earlier vested in accordance with Section 6(b)(iii) or Section 7, the Participant’s right to receive shares pursuant to this Award Agreement, if any, shall vest on the last day of the Performance Cycle (with the number of shares, if any, based on the Committee’s determination that each Performance Goal has been met (as provided in Section 5)). As soon as administratively practicable, but in no event later than 70 days, after the close of the Performance Cycle, the Committee shall notify the Participant as required by Section 5 of the level at which the Performance Goals established for the Performance Cycle have been achieved.

(b)If the date of Participant’s termination of Employment occurs prior to the close of the Performance Cycle or the occurrence of a Change in Control, then the applicable of the following clauses shall apply with respect to the Target Shares subject to this Award Agreement:

(i)Termination of Employment for Cause. If the Participant’s Employment is terminated by the Company or any of its Subsidiaries for Cause, then the Participant’s rights to receive any Target Shares shall be forfeited in its entirety as of the date of such termination of Employment.

(ii)Termination of Employment without Cause. If the Participant’s Employment is terminated by the Company or any of its Subsidiaries without Cause or by the Participant for any reason other than due to death, Disability or Retirement, then the Participant’s right to receive shares pursuant to this Award Agreement, if any, shall vest on the date the Committee determines that each Performance Goal has been met (as provided in Section 5) in a pro-rata amount determined by multiplying (1) the number of Vested Shares awarded to the Participant based upon the Committee’s determination of achievement of Performance Goals as provided in Section 5, by (2) a fraction, the numerator of which is the number of days elapsed in

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the Performance Cycle as of the date of the Participant’s termination of Employment, and the denominator of which is the total number of days in the Performance Cycle.

(iii)Death or Disability. If the Participant’s Employment is terminated due to death or Disability, the Participant’s right to receive the Target Shares shall vest on the date of termination of Employment in the proportion of the number of days elapsed in the Performance Cycle as of the date of termination by the total number of days in the Performance Cycle. The Participant’s right to receive any additional shares pursuant to this Award Agreement shall be forfeited at such time.

(iv)Retirement. If the Participant’s Employment is terminated due to Retirement, the Participant’s right to receive shares pursuant to this Award Agreement, if any, shall vest on the date the Committee determines that each Performance Goal has been met (as provided in Section 5) in a pro-rata amount determined by multiplying (1) the number of Vested Shares awarded to the Participant based upon the Committee’s determination of achievement of Performance Goals as provided in Section 5, by (2) a fraction, the numerator of which is the number of days elapsed in the Performance Cycle as of the date of the Participant’s termination of Employment, and the denominator of which is the total number of days in the Performance Cycle.

(c)In accordance with the provisions of this Section 6, the Vested Shares shall be distributed as provided in Section 7 hereof.

7.Distribution Upon a Change in Control. Notwithstanding anything herein to the contrary and without regard to the Performance Goals, if there is a Change in Control during the Performance Cycle, upon the Change in Control Closing Date, the Participant’s right to receive the Target Shares shall vest and be settled by the distribution to the Participant of:

(a)shares of Common Stock equal to the Target Shares; plus

(b)shares of Common Stock (rounded up to the nearest whole share) having a Fair Market Value equal to the amount of dividends that would have been declared on the number of such shares determined under clause (a) above during the period commencing at the beginning of the Performance Cycle and ending on the date immediately preceding the Change in Control Closing Date;

with such shares of Common Stock registered in book-entry form with the Company’s transfer agent in the Participant’s name. In lieu of the foregoing distribution in shares, the Committee, in its sole discretion, may direct that such distribution be made to the Participant in a lump cash payment equal to:

(x)    the product of (i) the Fair Market Value per share of Common Stock on the date immediately preceding the Change in Control Closing Date and (ii) the Target Shares; plus

(y)    the amount of dividends that would have been declared on the number of shares of Common Stock determined under clause (a) above during the period commencing at the beginning of the Performance Cycle and ending on the date immediately preceding the Change in Control Closing Date.

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Such distribution, whether in the form of shares of Common Stock or, if directed by the Committee, in cash, shall be made to the Participant no later than the 70th day after the Change in Control Closing Date, and shall satisfy the rights of the Participant and the obligations of the Company under this Award Agreement in full. In the event a Change in Control occurs after the Participant’s termination of Employment without Cause or due to Retirement, the Target Shares such Participant shall receive under this Section 7 shall be pro-rated based on the number of days that elapsed in the Performance Cycle as of the date of his termination of Employment over the total number of days in the Performance Cycle.

8.Distribution of Vested Shares.

(a)If the Participant’s right to receive shares pursuant to this Award Agreement has vested pursuant to Section 6(a) or Section 6(b)(ii) or (iv), a number of shares of Common Stock equal to the number of Vested Shares shall be registered in book-entry form with the Company’s transfer agent in the Participant’s name not later than March 15th of the calendar year following the calendar year in which occurs the last day of the Performance Cycle.

(b)If the Participant’s right to receive shares pursuant to this Award Agreement has vested pursuant to Section 6(b)(iii), a number of shares of Common Stock equal to the number of Vested Shares shall be registered in book-entry form with the Company’s transfer agent in the name of the Participant (or his or her estate, if applicable) not later than the 70th day after the date of Participant’s termination of Employment.

(c)The Company shall have the right to withhold applicable taxes from any such distribution of Vested Shares or from other compensation payable to the Participant at the time of such vesting and distribution pursuant to Section 11 of the Plan (but subject to compliance with the requirements of Section 409A of the Internal Revenue Code (“Section 409A”), if applicable).

(d)Upon distribution of the Vested Shares pursuant to Section 8(a) or 8(b) above, the Participant shall also be entitled to receive a cash payment equal to the sum of all dividends, if any, declared on the Vested Shares after the commencement of the Performance Cycle but prior to the date the Vested Shares are delivered to the Participant.

9.Confidentiality. The Participant agrees that the terms of this Award Agreement are confidential and that any disclosure to anyone for any purpose whatsoever (save and except disclosure to financial institutions as part of a financial statement, financial, tax and legal advisors, or as required by law) by the Participant or his or her agents, representatives, heirs, children, spouse, employees or spokespersons shall be a breach of this Award Agreement and the Company may elect to revoke the grant made hereunder, seek damages, plus interest and reasonable attorneys’ fees, and take any other lawful actions to enforce this Award Agreement.

10.Notices. For purposes of this Award Agreement, notices to the Company shall be deemed to have been duly given upon receipt of written notice by the Corporate Secretary of CenterPoint Energy, Inc., 1111 Louisiana, Houston, Texas 77002, or to such other address as the Company may furnish to the Participant.

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Notices to the Participant shall be deemed effectively delivered or given upon personal, electronic, or postal delivery of written notice to the Participant, the place of Employment of the Participant, the address on record for the Participant at the human resources department of the Company, or such other address as the Participant hereafter designates by written notice to the Company.

11.Shareholder Rights. The Participant shall have no rights of a shareholder with respect to the Target Shares, unless and until the Participant is registered as the holder of shares of Common Stock.

12.Successors and Assigns. This Award Agreement shall bind and inure to the benefit of and be enforceable by the Participant, the Company and their respective permitted successors and assigns except as expressly prohibited herein and in the Plan. Notwithstanding anything herein or in the Plan to the contrary, the Target Shares are transferable by the Participant to Immediate Family Members, Immediate Family Member trusts, and Immediate Family Member partnerships pursuant to Section 13 of the Plan.

13.No Employment Guaranteed. Nothing in this Award Agreement shall give the Participant any rights to (or impose any obligations for) continued Employment by the Company or any Subsidiary or any successor thereto, nor shall it give such entities any rights (or impose any obligations) with respect to continued performance of duties by the Participant.

14.Waiver. Failure of either party to demand strict compliance with any of the terms or conditions hereof shall not be deemed a waiver of such term or condition, nor shall any waiver by either party of any right hereunder at any one time or more times be deemed a waiver of such right at any other time or times. No term or condition hereof shall be deemed to have been waived except by written instrument.

15.Exclusion from Section 409A. At all times prior to the date that the Committee determines that each Performance Goal has been met (following the last date of the Performance Cycle) or, if applicable under Section 7 or 8(b), the Change in Control Closing Date or the date of Participant’s termination of Employment, respectively, the benefit payable under this Award Agreement is subject to a substantial risk of forfeiture within the meaning of Treasury Regulation § 1.409A-1(d) (or any successor regulation). Accordingly, this Award is not subject to Section 409A under the short term deferral exclusion, and this Award Agreement shall be interpreted and administered consistent therewith.

16.Compliance with Recoupment Policy. Any amounts payable, paid, or distributed under this Award Agreement are subject to the recoupment policy of the Company as in effect from time to time.

17.Modification of Award Agreement. Any modification of this Award Agreement shall be binding only if evidenced in writing and signed by an authorized representative of the Company.

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EX-10.(LL)(6)

Exhibit 10(ll)(6)

CENTERPOINT ENERGY, INC.

2009 LONG TERM INCENTIVE PLAN

FORM OF RESTRICTED STOCK UNIT AWARD AGREEMENT

Pursuant to this Restricted Stock Unit Award Agreement (this “RSU Award Agreement”), CENTERPOINT ENERGY, INC. (the "Company") hereby grants to [Name] (the “Participant”) effective on the Participant’s date of hire by the Company (the “Grant Date”), a restricted stock unit award of [Number] units of Common Stock of the Company (the "RSU Award"), pursuant to the CENTERPOINT ENERGY, INC. 2009 LONG TERM INCENTIVE PLAN (the "Plan"), with such number of units being subject to adjustment as provided in Section 14 of the Plan, and further subject to the terms, conditions and restrictions described in the Plan and as follows:

1.Relationship to the Plan; Definitions. This RSU Award is subject to all of the terms, conditions and provisions of the Plan and administrative interpretations thereunder, if any, which have been adopted by the Committee and are in effect on the date hereof. Except as defined herein, capitalized terms shall have the same meanings ascribed to them under the Plan. To the extent that any provision of this RSU Award Agreement conflicts with the express terms of the Plan, it is hereby acknowledged and agreed that the terms of the Plan shall control and, if necessary, the applicable provisions of this RSU Award Agreement shall be hereby deemed amended so as to carry out the purpose and intent of the Plan. References to the Participant herein also include the heirs or other legal representatives of the Participant.

2.Establishment of RSU Award Account. The grant of units of Common Stock of the Company pursuant to this RSU Award Agreement shall be implemented by a credit to a bookkeeping account maintained by the Company evidencing the accrual in favor of the Participant of the unfunded and unsecured right to receive a corresponding number of shares of Common Stock, which right shall be subject to the terms, conditions and restrictions set forth in the Plan and to the further terms, conditions and restrictions set forth in this RSU Award Agreement. Except as otherwise provided in Section 9 of this RSU Award Agreement, the units of Common Stock credited to the Participant's bookkeeping account may not be sold, assigned, transferred, pledged or otherwise encumbered until the Participant has been registered as the holder of such shares of Common Stock on the records of the Company as provided in Section 4 or 5 of this RSU Award Agreement.

3.Vesting of RSU Award. Unless Participant receives a distribution pursuant to Section 4 below, the Participant's right to receive shares of Common Stock under this RSU Award shall vest as follows:

(i)[Number] units of Common Stock of the Company covered under the RSU Award shall vest on the [Years] anniversary of the Grant Date; and

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(ii)[Number] units of Common Stock of the Company covered under the RSU Award shall vest on the [Years] anniversary of the Grant Date, such that 100% of the RSU Award shall be vested as of the [Years] anniversary of the Grant Date.

The Participant must be in continuous employment with the Company or any of its Subsidiaries ("Employment") from the Grant Date through and as of the applicable anniversary of the Grant Date or other date specified by the Committee in order for the Common Stock to vest; otherwise, all such unvested shares as of the date the Participant's Employment terminates for any reason shall be forfeited as of such termination date.

4.Distribution Upon a Change in Control.

(a)    Notwithstanding any provision of this RSU Award Agreement to the contrary, upon the occurrence of a Change in Control of the Company, provided the Participant's Employment has not terminated prior to such date, the Participant's right to receive the unvested shares of Common Stock subject to this RSUAward Agreement shall be settled by a distribution to the Participant of:

(i)the number of shares of Common Stock subject to this RSUAward Agreement not previously vested pursuant to Section 3 above, plus

(ii)Dividend Equivalents on such shares of Common Stock in the form of shares of Common Stock (rounded up to the nearest whole share) for the period commencing on the Grant Date and ending on the date immediately preceding the date of the consummation of the Change in Control (the “Change in Control Closing Date”);

with such shares of Common Stock registered in book-entry form with the Company’s transfer agent in the name of the Participant not later than 70 days after the Change in Control Closing Date.

(b)    In lieu of the distribution in shares under clause (a) above, the Committee, in its sole discretion, may direct that such distribution be made to the Participant in a lump sum cash payment equal to:

(i)    the product of (x) the Fair Market Value per share of Common Stock on the date immediately preceding the Change in Control Closing Date and (y) the number of shares of Common Stock subject to this RSUAward Agreement not previously vested pursuant to Section 3 above, plus

(ii)    Dividend Equivalents on such shares of Common Stock for the period commencing on the Grant Date and ending on the date immediately preceding the Change in Control Closing Date;

with such cash payment to be made to the Participant not later than 70 days after the Change in Control Closing Date. The Company shall have the right to withhold applicable taxes from any such distribution of the Common Stock (including, but not

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limited to, Dividend Equivalents) or from other cash compensation payable to the Participant at the time of such vesting and delivery pursuant to Section 11 of the Plan.

(c)    The distribution under this Section 4, whether in the form of shares of Common Stock or, if directed by the Committee, in cash, shall satisfy the rights of the Participant and the obligations of the Company under this RSU Award Agreement in full.

5.Payment of Award Under Section 3. Upon the vesting of the Participant's right to receive the shares of Common Stock pursuant to Section 3 of this RSU Award Agreement, a number of shares of Common Stock equal to the number of vested units of Common Stock under this RSU Award Agreement shall be registered in book-entry form with the Company’s transfer agent in the name of the Participant not later than 70 daysafter the applicable vesting dates. The Company shall have the right to withhold applicable taxes from any such distribution of the Common Stock (including, but not limited to, Dividend Equivalents) or from other cash compensation payable to the Participant at the time of such vesting and delivery pursuant to Section 11 of the Plan.

If the units of Common Stock became vested pursuant to Section 3, upon the date of distribution of shares of Common Stock in settlement of such units, the Participant shall also be entitled to receive Dividend Equivalents on such shares of Common Stock for the period from the Grant Date to the date such shares of Common Stock are distributed to the Participant.

6.Confidentiality. The Participant agrees that the terms of this RSU Award Agreement are confidential and that any disclosure to anyone for any purpose whatsoever (save and except disclosure to financial institutions as part of a financial statement, financial, tax and legal advisors, or as required by law) by the Participant or his or her agents, representatives, heirs, children, spouse, employees or spokespersons shall be a breach of this RSU Award Agreement and the Company may elect to revoke the grant made hereunder, seek damages, plus interest and reasonable attorneys' fees, and take any other lawful actions to enforce this RSU Award Agreement.

7.Notices. For purposes of this RSU Award Agreement, notices to the Company shall be deemed to have been duly given upon receipt of written notice by the Corporate Secretary of CenterPoint Energy, Inc., 1111 Louisiana, Houston, Texas 77002, or to such other address as the Company may furnish to the Participant.

Notices to the Participant shall be deemed effectively delivered or given upon personal, electronic, or postal delivery of written notice to the Participant, the place of Employment of the Participant, the address on record for the Participant at the human resources department of the Company, or such other address as the Participant hereafter designates by written notice to the Company.

8.Shareholder Rights. The Participant shall have no rights of a shareholder with respect to the shares of Common Stock granted pursuant to this RSU Award, unless and until the Participant is registered as the holder of such shares of Common Stock.

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9.Successors and Assigns. This RSU Award Agreement shall bind and inure to the benefit of and be enforceable by the Participant, the Company and their respective permitted successors and assigns except as expressly prohibited herein and in the Plan. Notwithstanding anything herein or in the Plan to the contrary, the shares of Common Stock are transferable by the Participant to Immediate Family Members, Immediate Family Member trusts, and Immediate Family Member partnerships pursuant to Section 13 of the Plan.

10.No Employment Guaranteed. Nothing in this RSU Award Agreement shall give the Participant any rights to (or impose any obligations for) continued Employment by the Company orany Subsidiary, or any successor thereto, nor shall it give such entities any rights (or impose any obligations) with respect to continued performance of duties by the Participant.

11.Section 409A. The distribution of shares and payments under this RSU Award Agreement are not intended to be subject to Section 409A of the Code pursuant to the short term deferral exclusion and shall be administered accordingly.

12.Modification of RSU Award Agreement. Any modification of this RSU Award Agreement shall be binding only if evidenced in writing. The foregoing notwithstanding, (i) no adjustment to the RSU Award pursuant to Section 14 of the Plan and (ii) no substitutions of the benefits under this RSU Award Agreement, in each case, shall be made in a manner that results in this RSU Award being subject to the requirements of Section 409A.

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EX-10.(LL)(7)

Exhibit 10(ll)(7)

CENTERPOINT ENERGY, INC.

2009 LONG TERM INCENTIVE PLAN

FORM OF EXECUTIVE CHAIRMAN RESTRICTED STOCK UNIT AWARD AGREEMENT

Pursuant to this Restricted Stock Unit Award Agreement (“Award Agreement”), CENTERPOINT ENERGY, INC. (the “Company”) hereby grants to the Executive Chairman, an employee of the Company, on the Award Date, a restricted stock unit award of the number of units of Common Stock of the Company (the “RSU Award”) as specified on this Computershare web site(“Award Notice”), pursuant to the CENTERPOINT ENERGY, INC. 2009 LONG TERM INCENTIVE PLAN (the “Plan”), subject to the terms, conditions and restrictions described in the Plan and as follows:

1.Relationship to the Plan; Definitions. This RSU Award is subject to all of the terms, conditions and provisions of the Plan in effect on the date hereof and administrative interpretations thereunder, if any, adopted by the Committee. Except as defined herein, capitalized terms shall have the same meanings ascribed to them under the Plan. To the extent that any provision of this Award Agreement conflicts with the express terms of the Plan, it is hereby acknowledged and agreed that the terms of the Plan shall control and, if necessary, the applicable provisions of this Award Agreement shall be hereby deemed amended so as to carry out the purpose and intent of the Plan. References to the Participant herein also include the heirs or other legal representatives of the Participant. For purposes of this Award Agreement:

“Award Date” means the date this RSU Award is granted to the Participant as specified in the Award Notice.

“Change in Control Closing Date” means the date a Change in Control (as defined in the Plan) is consummated.

“Change in Control Payment Date” means the following:

(i)If the Change in Control is a Section 409A Change in Control, then the Change in Control Payment Date shall be not later than the 70th day after the Change in Control Closing Date; and

(ii)If the Change in Control is a Non-Section 409A Change in Control, then the Change in Control Payment Date shall be the first to occur of:

(1) the Vesting Date(s) on which the units are paid under Section 3 hereof for the number of units indicated in the Award Notice assuming continuous Employment by the Participant as of such Vesting Date(s); or

(2) in the case of the Participant’s death or Separation from Service due to Disability or Retirement prior to the Vesting

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Date(s), all shares not previously paid shall be paid at the time of distribution indicated in Section 4(b).

“Disability” means that the Participant is both eligible for and in receipt of benefits under the Company’s long-term disability plan.

“Employment” means employment with the Company or any of its Subsidiaries.

“Non-Section 409A Change in Control” means a Change in Control that is not a Section 409A Change in Control.

“Retirement” means a termination of Employment that is also Separation from Service (i) on or after attainment of age 55 and (ii) with at least five years of service; provided, however, that such termination of Employment is not by the Company for Cause and occurs on or after July 1 of the calendar year in which this RSU Award is granted. For purposes of this Award Agreement, “Cause” means the Participant’s (a) gross negligence in the performance of his or her duties, (b) intentional and continued failure to perform his or her duties, (c) intentional engagement in conduct which is materially injurious to the Company or its Subsidiaries (monetarily or otherwise) or (d) conviction of a felony or a misdemeanor involving moral turpitude. For this purpose, an act or failure to act on the part of the Participant will be deemed “intentional” only if done or omitted to be done by the Participant not in good faith and without reasonable belief that his or her action or omission was in the best interest of the Company, and no act or failure to act on the part of the Participant will be deemed “intentional” if it was due primarily to an error in judgment or negligence.

“Section 409A” means Code Section 409A and the Treasury regulations and guidance issued thereunder.

“Section 409A Change in Control” means a Change in Control that satisfies the requirements of a change in control for purposes of Code Section 409A(a)(2)(A)(v) and the Treasury regulations and guidance issued thereunder.

“Separation from Service” means a separation from service with the Company or any of its Subsidiaries within the meaning of Treasury Regulation § 1.409A-1(h) (or any successor regulation).

“Termination Date” means the date of the Participant’s Separation from Service.

“Vesting Date” means one or more vesting dates as specified in the Award Notice.

2.Establishment of RSU Award Account. The grant of units of Common Stock of the Company pursuant to this Award Agreement shall be implemented by a credit to a bookkeeping account maintained by the Company evidencing the accrual in favor of the Participant of the unfunded and unsecured right to receive a corresponding number of shares of Common Stock, which right shall be subject to the terms, conditions and restrictions set forth in the Plan and to the further terms, conditions and restrictions set forth in this Award Agreement. Except as otherwise provided in Section 10 of this Award Agreement, the units of Common

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Stock credited to the Participant’s bookkeeping account may not be sold, assigned, transferred, pledged or otherwise encumbered until the Participant has been registered as the holder of shares of Common Stock on the records of the Company, as provided in Sections 4, 5 or 6 of this Award Agreement.

3.Vesting of RSU Award. Unless earlier (a) vested or forfeited pursuant to this Section 3 or Section 4 below or (b) vested upon the occurrence of a Change in Control pursuant to Section 5 below, the Participant’s right to receive shares of Common Stock under this Award Agreement shall vest on the Vesting Date(s) for the number of units indicated in the Award Notice. Except as provided in Sections 4 and 5 below, the Participant must be in continuous Employment during the period beginning on the Award Date and ending on the Vesting Date(s) in order for the units (as indicated in the Award Notice) of the RSU Award to vest on such Vesting Date; otherwise, all unvested units shall be forfeited as of the Participant’s termination of Employment.

4.Effect of Termination of Employment Prior to the Final Vesting Date or Change in Control; Timing of Distribution.

(a)Death. Notwithstanding Section 3 above, if the Participant’s Termination Date occurs prior to (i) the final Vesting Date or (ii) the occurrence of a Change in Control, due to the Participant’s death, then the Participant shall vest in the right to receive a number of the shares of Common Stock (rounded up to the nearest whole share) with respect to the unvested portion of this RSU Award determined by multiplying (A) the total number of units of Common Stock covered by this RSU Award by (B) a fraction, the numerator of which is the number of days that have elapsed from the Award Date to the Participant’s Termination Date, and the denominator of which is the total number of days from the Award Date until the final Vesting Date.

(b)Disability or Retirement. Notwithstanding Section 3 above, if the Participant’s Termination Date occurs prior to (i) the final Vesting Date or (ii) the occurrence of a Change in Control, due to the Participant’s Disability or Retirement, Participant shall vest in the right to receive a number of the shares of Common Stock (rounded up to the nearest whole share) with respect to the unvested portion of this RSU Award determined by multiplying (A) the total number of units of Common Stock covered by this RSU Award by (B) a fraction, the numerator of which is the number of days that have elapsed from the Award Date to the Participant’s Termination Date, and the denominator of which is the total number of days from the Award Date until the final Vesting Date.

(c)Other Termination of Employment without Cause. If (i) the Participant’s Employment is terminated by the Company or any of its Subsidiaries without Cause or by the Participant for any reason other than due to death, Disability or Retirement, and (ii) such termination of Employment occurs on or after July 1 of the calendar year in which this RSU Award is granted, then the Participant shall vest in the right to receive a number of the shares of Common Stock (rounded up to the nearest whole share) with respect to the unvested portion of this RSU Award determined by multiplying (A) the total number of units of Common Stock covered by this RSU Award by (B) a fraction, the numerator

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of which is the number of days that have elapsed from the Award Date to the date of Participant’s termination of Employment, and the denominator of which is the total number of days from the Award Date until the final Vesting Date.

(d)Timing of Distribution.

(1)    Death. If the Participant is entitled to a benefit pursuant to Section 4(a) hereof due to the Participant’s death, the number of shares of Common Stock determined in accordance with Section 4(a) shall be registered in book-entry form with the Company’s transfer agent in the name of the Participant (or his or her estate) as soon as practicable but not later than the 70th day after the date of the Participant’s death.

(2)    Disability or Retirement. If the Participant is entitled to a benefit pursuant to Section 4(b) hereof due to the Participant’s Disability or Retirement, then the number of shares of Common Stock determined in accordance with Section 4(b) shall be registered in book-entry form with the Company’s transfer agent in the name of the Participant on the date that is the earlier of (x) the second business day following the end of the six-month period commencing on the Participant’s Termination Date or (y) the Participant’s date of death, if death occurs during such six-month period.

(3)    Other Termination of Employment without Cause. If the Participant is entitled to a benefit pursuant to Section 4(c) hereof due to the Participant’s termination of Employment without Cause (other than for death, Disability or Retirement), then the number of shares of Common Stock determined in accordance with Section 4(c) shall be registered in book-entry form with the Company’s transfer agent in the name of the Participant on the date that is the earlier of (x) the second business day following the end of the six-month period commencing on the Participant’s Termination Date, (y) the Participant’s date of death, or (z) the Vesting Date(s) on which such units would be paid under Section 3 hereof assuming continuous Employment by the Participant as of such Vesting Date(s).

(e)Dividend Equivalents. Upon the date of distribution of shares of Common Stock under this Section 4, the Participant shall also be entitled to receive Dividend Equivalents for the period from the Award Date to the date such vested shares of Common Stock are distributed to the Participant (in accordance with the requirements of Section 409A, to the extent applicable).

5.Distribution Upon a Change in Control. Notwithstanding any provision of this Award Agreement to the contrary, if there is a Change in Control and the Change in Control Closing Date occurs during the Participant’s Employment and prior to (a) the final Vesting Date or (b) an accelerated vesting event under Section 4 above, then, upon the Change in Control Closing Date, the Participant’s right to receive the unvested units of Common Stock subject to this Award Agreement shall be fully vested. This RSU Award shall be settled by one or more distributions, on the Change in Control Payment Date, to the Participant of:

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(a)The number of units of Common Stock subject to this Award Agreement not previously vested or forfeited pursuant to Sections 3 or 4 above, plus

(b)Dividend Equivalents in the form of shares of Common Stock (rounded up to the nearest whole share) for the period commencing on the Award Date and ending on the date immediately preceding the Change in Control Payment Date;

with such shares of Common Stock registered in book-entry form with the Company’s transfer agent in the name of the Participant. In lieu of the foregoing distribution in shares, the Committee, in its sole discretion, may direct that such distribution be made to the Participant in one or more cash payments equal to:

(x)    The product of (i) the Fair Market Value per share of Common Stock on the date immediately preceding the Change in Control Closing Date and (ii) the number of units of Common Stock subject to this Award Agreement not previously vested or forfeited pursuant to Sections 3 or 4 above, plus

(y)    Dividend Equivalents for the period commencing on the Award Date and ending on the date immediately preceding the Change in Control Payment Date;

with such cash payment(s) to be made on the Change in Control Payment Date. Such distribution under this Section 5, whether in the form of shares of Common Stock or, if directed by the Committee, in cash, shall satisfy the rights of the Participant and the obligations of the Company under this Award Agreement in full.

6.Payment of RSU Award Under Section 3. Upon the vesting of the Participant’s right to receive a number of the shares of Common Stock pursuant to Section 3 under this Award Agreement, such shares of Common Stock will be registered in book-entry form with the Company’s transfer agent in the Participant’s name not later than the 70th day after the applicable Vesting Date. Moreover, upon the date of distribution of shares of Common Stock, the Participant shall also be entitled to receive Dividend Equivalents for the period commencing on the Award Date and ending on the date such vested shares of Common Stock are distributed to the Participant (in accordance with the requirements of Section 409A, to the extent applicable).

7.Confidentiality. The Participant agrees that the terms of this Award Agreement are confidential and that any disclosure to anyone for any purpose whatsoever (save and except disclosure to financial institutions as part of a financial statement, financial, tax and legal advisors, or as required by law) by the Participant or his or her agents, representatives, heirs, children, spouse, employees or spokespersons shall be a breach of this Award Agreement and the Company may elect to revoke the grant made hereunder, seek damages, plus interest and reasonable attorneys’ fees, and take any other lawful actions to enforce this Award Agreement.

8.Notices. For purposes of this Award Agreement, notices to the Company shall be deemed to have been duly given upon receipt of written notice by the Corporate

5

Secretary of CenterPoint Energy, Inc., 1111 Louisiana, Houston, Texas 77002, or to such other address as the Company may furnish to the Participant.

Notices to the Participant shall be deemed effectively delivered or given upon personal, electronic, or postal delivery of written notice to the Participant, the place of Employment of the Participant, the address on record for the Participant at the human resources department of the Company, or such other address as the Participant hereafter designates by written notice to the Company.

9.Shareholder Rights. The Participant shall have no rights of a shareholder with respect to the units of Common Stock subject to this Award Agreement, unless and until the Participant is registered as the holder of such shares of Common Stock.

10.Successors and Assigns. This Award Agreement shall bind and inure to the benefit of and be enforceable by the Participant, the Company and their respective permitted successors and assigns except as expressly prohibited herein and in the Plan. Notwithstanding anything herein or in the Plan to the contrary, the units of Common Stock are transferable by the Participant to Immediate Family Members, Immediate Family Member trusts, and Immediate Family Member partnerships pursuant to Section 13 of the Plan.

11.No Employment Guaranteed. Nothing in this Award Agreement shall give the Participant any rights to (or impose any obligations for) continued Employment by the Company orany Subsidiary, or any successor thereto, nor shall it give such entities any rights (or impose any obligations) with respect to continued performance of duties by the Participant.

12.Waiver. Failure of either party to demand strict compliance with any of the terms or conditions hereof shall not be deemed a waiver of such term or condition, nor shall any waiver by either party of any right hereunder at any one time or more times be deemed a waiver of such right at any other time or times. No term or condition hereof shall be deemed to have been waived except by written instrument.

13.Compliance with Section 409A. It is the intent of the Company and the Participant that the provisions of the Plan and this Award Agreement comply with Section 409A and will be interpreted and administered consistent therewith. Accordingly, (i) no adjustment to the RSU Award pursuant to Section 14 of the Plan and (ii) no substitutions of the benefits under this Award Agreement, in each case, shall be made in a manner that results in noncompliance with the requirements of Section 409A, to the extent applicable.

14.Withholding. The Company shall have the right to withhold applicable taxes from any distribution of the Common Stock (including, but not limited to, Dividend Equivalents) or from other cash compensation payable to the Participant at the time of such vesting and delivery pursuant to Section 11 of the Plan (but subject to compliance with the requirements of Section 409A, if applicable).

15.Modification of Award Agreement. Any modification of this Award Agreement is subject to Section 13 hereof and shall be binding only if evidenced in writing and signed by an authorized representative of the Company.

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EX-10.(LL)(8)

Exhibit 10(ll)(8)

CENTERPOINT ENERGY, INC.

2009 LONG TERM INCENTIVE PLAN

FORM OF EXECUTIVE CHAIRMAN SPECIAL

RESTRICTED STOCK UNIT AWARD AGREEMENT

Pursuant to this Restricted Stock Unit Award Agreement (this “RSU Award Agreement”), CENTERPOINT ENERGY, INC. (the “Company”) hereby grants to the Executive Chairman (the ”Participant”) effective on [DATE], 20XX (the “Grant Date”), a restricted stock unit award of [Number] units of Common Stock of the Company (the “RSU Award”), pursuant to the CENTERPOINT ENERGY, INC. 2009 LONG TERM INCENTIVE PLAN (the “Plan”), with such number of units being subject to adjustment as provided in Section 14 of the Plan, and further subject to the terms, conditions and restrictions described in the Plan and as follows:

1.Relationship to the Plan; Definitions. This RSU Award is subject to all of the terms, conditions and provisions of the Plan and administrative interpretations thereunder, if any, which have been adopted by the Committee and are in effect on the date hereof. Except as defined herein, capitalized terms shall have the same meanings ascribed to them under the Plan. To the extent that any provision of this RSU Award Agreement conflicts with the express terms of the Plan, it is hereby acknowledged and agreed that the terms of the Plan shall control and, if necessary, the applicable provisions of this RSU Award Agreement shall be hereby deemed amended so as to carry out the purpose and intent of the Plan. References to the Participant herein also include the heirs or other legal representatives of the Participant.

2.Establishment of RSU Award Account. The grant of units of Common Stock of the Company pursuant to this RSU Award Agreement shall be implemented by a credit to a bookkeeping account maintained by the Company evidencing the accrual in favor of the Participant of the unfunded and unsecured right to receive a corresponding number of shares of Common Stock, which right shall be subject to the terms, conditions and restrictions set forth in the Plan and to the further terms, conditions and restrictions set forth in this RSU Award Agreement. Except as otherwise provided in Section 9 of this RSU Award Agreement, the units of Common Stock credited to the Participant’s bookkeeping account may not be sold, assigned, transferred, pledged or otherwise encumbered until the Participant has been registered as the holder of such shares of Common Stock on the records of the Company as provided in Section 4 or 5 of this RSU Award Agreement.

3.Vesting of RSU Award. Unless the Participant receives a distribution pursuant to Section 4 below, the Participant’s right to receive shares of Common Stock under this RSU Award shall vest on [DATE], 20XX (the “Vesting Date”), provided that (i) the Participant is in continuous service (whether as an employee or director) with the Company or any of its Subsidiaries (“Service”) from the Grant Date until the Vesting Date. If the

1

Participant’s Service terminates for any reason before the Vesting Date, all unvested shares as of the date the Participant’s Service terminates for any reason shall be forfeited as of such termination date.

4.Distribution Upon a Change in Control.

(a)    Notwithstanding any provision of this RSU Award Agreement to the contrary, upon the occurrence of a Change in Control of the Company, provided the Participant’s Service has not terminated prior to such date, the Participant’s right to receive the unvested shares of Common Stock subject to this RSUAward Agreement shall be settled by a distribution to the Participant of:

(i)the number of shares of Common Stock subject to this RSU Award Agreement not previously vested pursuant to Section 3 above, plus

(ii)Dividend Equivalents on such shares of Common Stock in the form of shares of Common Stock (rounded up to the nearest whole share) for the period commencing on the Grant Date and ending on the date immediately preceding the date of the consummation of the Change in Control (the “Change in Control Closing Date”);

with such shares of Common Stock registered in book-entry form with the Company’s transfer agent in the Participant’s name.

(b)    In lieu of the distribution in shares under clause (a) above, the Committee, in its sole discretion, may direct that such distribution be made to the Participant in a lump sum cash payment equal to:

(i)    the product of (x) the Fair Market Value per share of Common Stock on the date immediately preceding the Change in Control Closing Date and (y) the number of shares of Common Stock subject to this RSUAward Agreement not previously vested pursuant to Section 3 above, plus

(ii)    Dividend Equivalents on such shares of Common Stock for the period commencing on the Grant Date and ending on the date immediately preceding the Change in Control Closing Date;

with such cash payment to be made to the Participant not later than 70 days after the Change in Control Closing Date. The Company shall have the right to withhold applicable taxes from any such distribution of the Common Stock (including, but not limited to, Dividend Equivalents) or from other cash compensation payable to the Participant at the time of such vesting and delivery pursuant to Section 11 of the Plan.

(c)    The distribution under this Section 4, whether in the form of shares of Common Stock or, if directed by the Committee, in cash, shall satisfy the rights of the Participant and the obligations of the Company under this RSU Award Agreement in full.

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5.Payment of Award Under Section 3. Upon the vesting of the Participant’s right to receive the shares of Common Stock pursuant to Section 3 of this RSU Award Agreement,such shares of Common Stock will be registered in book-entry form with the Company’s transfer agent in the Participant’s name not later than the 70th day after the applicable Vesting Date. The Company shall have the right to withhold applicable taxes from any such distribution of the Common Stock (including, but not limited to, Dividend Equivalents) or from other cash compensation payable to the Participant at the time of such vesting and delivery pursuant to Section 11 of the Plan.

If the units of Common Stock became vested pursuant to Section 3, upon the date of delivery of shares of Common Stock in settlement of such units, the Participant shall also be entitled to receive Dividend Equivalents on such shares of Common Stock for the period from the Grant Date to the date such shares of Common Stock are distributed to the Participant.

6.Confidentiality. The Participant agrees that the terms of this RSU Award Agreement are confidential and that any disclosure to anyone for any purpose whatsoever (save and except disclosure to financial institutions as part of a financial statement, financial, tax and legal advisors, or as required by law) by the Participant or his or her agents, representatives, heirs, children, spouse, employees or spokespersons shall be a breach of this RSU Award Agreement and the Company may elect to revoke the grant made hereunder, seek damages, plus interest and reasonable attorneys’ fees, and take any other lawful actions to enforce this RSU Award Agreement.

7.Notices. For purposes of this RSU Award Agreement, notices to the Company shall be deemed to have been duly given upon receipt of written notice by the Corporate Secretary of CenterPoint Energy, Inc., 1111 Louisiana, Houston, Texas 77002, or to such other address as the Company may furnish to the Participant.

Notices to the Participant shall be deemed effectively delivered or given upon personal, electronic, or postal delivery of written notice to the Participant, the place of Service of the Participant, the address on record for the Participant at the human resources department of the Company, or such other address as the Participant hereafter designates by written notice to the Company.

8.Shareholder Rights. The Participant shall have no rights of a shareholder with respect to the shares of Common Stock granted pursuant to this RSU Award, unless and until the Participant is registered as the holder of such shares of Common Stock.

9.Successors and Assigns. This RSU Award Agreement shall bind and inure to the benefit of and be enforceable by the Participant, the Company and their respective permitted successors and assigns except as expressly prohibited herein and in the Plan. Notwithstanding anything herein or in the Plan to the contrary, the shares of Common Stock are transferable by the Participant to Immediate Family Members, Immediate Family Member trusts, and Immediate Family Member partnerships pursuant to Section 13 of the Plan.

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10.No Continued Service Guaranteed. Nothing in this RSU Award Agreement shall give the Participant any rights to (or impose any obligations for) continued Service with the Company orany Subsidiary, or any successor thereto, nor shall it give such entities any rights (or impose any obligations) with respect to continued performance of duties by the Participant.

11.Section 409A. The distribution of shares and payments under this RSU Award Agreement are not intended to be subject to Section 409A of the Code pursuant to the short term deferral exclusion and shall be administered accordingly.

12.Modification of RSU Award Agreement. Any modification of this RSU Award Agreement shall be binding only if evidenced in writing. The foregoing notwithstanding, (i) no adjustment to the RSU Award pursuant to Section 14 of the Plan and (ii) no substitutions of the benefits under this RSU Award Agreement, in each case, shall be made in a manner that results in this RSU Award being subject to the requirements of Section 409A.

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EX-10.(MM)

Exhibit 10(mm)

CenterPoint Energy, Inc.

Summary of Non-Employee Director Compensation

The following is a summary of compensation paid to the non-employee directors of CenterPoint Energy, Inc. (the “Company”) effective April 1, 2014. For additional information regarding the compensation of the non-employee directors, please read the definitive proxy statement relating to the Company’s 2015 annual meeting of shareholders to be filed pursuant to Regulation 14A.

•Annual retainer fee of $90,000 for Board membership, paid quarterly in arrears;

• Supplemental annual retainer of $20,000 for serving as a chairman of the Audit Committee or Compensation Committee; and

•Supplemental annual retainer of $15,000 for serving as a chairman of the Goverance committee.

In 2014, Ms. Longoria and Mr. Wareing received $5,000 for their service on the special CEO Succession Planning Committee.

Stock Grants. In 2014 each non-employee director received an annual grant of 5,000 shares of CenterPoint Energy common stock which vested on the first anniversary of the grant date. Effective January 1, 2015, the Stock Plan for Outside Directors was amended to change the award from a flat share award to a value-based award. In 2015, the Board will declare a cash value amount applicable to the annual awards and the number of shares awarded will be determined by dividing the total value of the annual award by the fair market value of the common stock on the grant date. Upon the initial nomination to the Board, in addition to the annual grant, a non-employee director may be granted a one-time grant of CenterPoint Energy common stock. This one-time grant, like the annual share award, will be determined by the Board.

Deferred Compensation Plan. Directors may elect each year to defer all or part of their annual retainer fees, including committee chairman fees, and meeting fees. Directors participating in these plans may elect to receive distributions of their deferred compensation and interest in three ways: (i) an early distribution of either 50% or 100% of their account balance in any year that is at least four years from the year of deferral up to the year in which they reach age 70, (ii) a lump sum distribution payable in the year after they reach age 70 or upon leaving the Board of Directors, whichever is later, or (iii) 15 annual installments beginning on the first of the month coincident with or next following age 70 or upon leaving the Board of Directors, whichever is later.

EX-10.(NN)

Exhibit 10(nn)

CenterPoint Energy, Inc.

Summary of Senior Executive Officer Compensation

The following is a summary of compensation paid to the Chief Executive Officer, Chief Financial Officer and Executive Vice Presidents identified below (to whom we collectively refer as our “senior executive officers”) of CenterPoint Energy, Inc. (the “Company”). For additional information regarding the compensation of the senior executive officers, please read the definitive proxy statement relating to the Company’s 2015 annual meeting of shareholders to be filed pursuant to Regulation 14A.

Base Salary. The following table sets forth the annual base salary of the Company’s senior executive officers effective April 1, 2015:

Name and Position	Base Salary
Scott M. Prochazka President and Chief Executive Officer	$	927,000
Gary L. Whitlock Executive Vice President and Chief Financial Officer	$	600,000
Tracy B. Bridge Executive Vice President and President Electric Division	$	455,000
Joseph B. McGoldrick Executive Vice President and President Gas Division	$	455,000

Short Term Incentive Plan. Annual bonuses are paid to the Company’s senior executive officers pursuant to the Company’s short term incentive plan, which provides for cash bonuses based on the achievement of certain performance objectives approved in accordance with the terms of the plan at the commencement of the year. Information regarding awards to the Company’s senior executive officers under the short term incentive plan is provided in definitive proxy statements relating to the Company’s annual meeting of shareholders.

Long Term Incentive Plan. Under the Company’s long term incentive plan, the Company’s senior executive officers may receive grants of (i) stock option awards, (ii) stock appreciation rights, (iii) stock awards, (iv) restricted stock unit awards, (v) cash awards and (vi) performance awards. The current forms of the applicable award agreements pursuant to the Company’s long term incentive plan are included as exhibits hereto.

EX-12

Exhibit 12

CENTERPOINT ENERGY, INC. AND SUBSIDIARIES

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

(Millions of Dollars)

	2014 (1)			2013 (1)			2012 (1)			2011 (1)			2010 (1)
Income before extraordinary item	$	611		$	311		$	417		$	770		$	442
Equity in earnings of unconsolidated affiliates, net of distributions	(2		)	(58		)	8			8			13
Income taxes	274			470			341			404			263
Capitalized interest	(11		)	(11		)	(9		)	(4		)	(9		)
	872			712			757			1,178			709
Fixed charges, as defined:
Interest	471			484			569			583			621
Capitalized interest	11			11			9			4			9
Interest component of rentals charged to operating expense	4			7			9			14			26
Total fixed charges	486			502			587			601			656
Earnings, as defined	$	1,358		$	1,214		$	1,344		$	1,779		$	1,365
Ratio of earnings to fixed charges	2.79			2.42			2.29			2.96			2.08

________

(1) Excluded from the computation of fixed charges for the years ended December 31, 2014, 2013, 2012, 2011, and 2010 is interest expense of $3 million, interest income of $6 million, interest income of $11 million, interest income of $12 million and interest expense of $9 million respectively, which is included in income tax expense.

EX-21

Exhibit 21

SIGNIFICANT SUBSIDIARIES OF CENTERPOINT ENERGY, INC.

The following subsidiaries are deemed “significant subsidiaries” pursuant to Item 601(b) (21) of Regulation S-K:

Utility Holding, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of CenterPoint Energy, Inc.

CenterPoint Energy Investment Management, Inc., a Delaware corporation and an indirect wholly owned subsidiary of CenterPoint Energy, Inc.

CenterPoint Energy Resources Corp., a Delaware corporation and an indirect wholly owned subsidiary of CenterPoint Energy, Inc.

CenterPoint Energy Houston Electric, LLC, a Texas limited liability company and an indirect wholly owned subsidiary of CenterPoint Energy, Inc.

CenterPoint Energy Services, Inc., a Delaware corporation and an indirect wholly owned subsidiary of CenterPoint Energy, Inc.

Enable Midstream Partners, LP (Enable), a Delaware limited partnership. CenterPoint Energy, Inc. indirectly owns 55.4% of the limited partner interests.

Subsidiaries of Enable:

Subsidiary            State of Incorporation/Organization

Enable Intrastate Holdings II, LLC        Delaware

Enable Oklahoma Intrastate Transmission, LLC     Delaware

Enable Gathering & Processing, LLC     Oklahoma

Enable Gas Gathering, LLC     Oklahoma

Enable Products, LLC     Oklahoma

Enable Gas Transmission, LLC     Delaware

(1) Pursuant to Item 601(b) (21) of Regulation S-K, registrant has omitted the names of subsidiaries, which considered in the aggregate as a single subsidiary, would not constitute a “significant subsidiary” (as defined under Rule 1-02(w) of Regulation S-X) as of December 31, 2014.

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-193695, 333-187835, and 333-114543 on Form S-3; Registration Statement Nos. 333-179310, 333-173660, 333-149757, 333-101202, as amended, 333-115976, as amended, 333-159586, as amended, and 333-105773, as amended on Form S-8; Post Effective Amendment No. 1 to Registration Statement Nos. 333-32413-99, 333-49333-99, 333-38188-99, 333-60260-99 and 333-98271-99 on Form S-8; and Post-Effective Amendment No. 5 to Registration Statement No. 333-11329-99 on Form S-8 of our reports dated February 26, 2015, relating to the consolidated financial statements and financial statement schedules of CenterPoint Energy, Inc. and subsidiaries (the “Company”), and the effectiveness of the Company’s internal control over financial reporting, appearing in this Annual Report on Form 10-K of CenterPoint Energy, Inc. for the year ended December 31, 2014.

/s/ DELOITTE & TOUCHE LLP

Houston, Texas

February 26, 2015

EX-23.2

Exhibit 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-193695, 333-187835, and 333-114543 on Form S-3; Registration Statement Nos. 333-179310, 333-173660, 333-149757, 333-101202, as amended, 333-115976, as amended, 333-159586, as amended, and 333-105773, as amended on Form S-8; Post-Effective Amendment No. 1 to Registration Statement Nos. 333-32413-99, 333-49333-99, 333-38188-99, 333-60260-99 and 333-98271-99 on Form S-8; and Post-Effective Amendment No. 5 to Registration Statement No. 333-11329-99 on Form S-8 of CenterPoint Energy, Inc. of our report dated February 18, 2015, relating to the combined and consolidated financial statements of Enable Midstream Partners, LP and subsidiaries, (collectively the "Partnership") (which report expresses an unqualified opinion and includes an explanatory paragraph relating to the preparation of the combined and consolidated financial statements of Enable Midstream Partners, LP from the historical accounting records maintained by CenterPoint Energy, Inc. and its subsidiaries), appearing in this annual report on Form 10-K of CenterPoint Energy, Inc. for the year ended December 31, 2014.

/s/ DELOITTE & TOUCHE LLP

Houston, Texas

February 26, 2015

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Scott M. Prochazka, certify that:

1.           I have reviewed this annual report on Form 10-K of CenterPoint Energy, Inc.;

2.           Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.           Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.           The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.           The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:       February 26, 2015

/s/ Scott M. Prochazka

Scott M. Prochazka

President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Gary L. Whitlock, certify that:

1.           I have reviewed this annual report on Form 10-K of CenterPoint Energy, Inc.;

2.           Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.           Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.           The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.           The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:       February 26, 2015

/s/ Gary L. Whitlock

Gary L. Whitlock

Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of CenterPoint Energy, Inc. (the “Company”) on Form 10-K for the year ended December 31, 2014 (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I, Scott M. Prochazka, Chief Executive Officer, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

1.           The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.           The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Scott M. Prochazka

Scott M. Prochazka

President and Chief Executive Officer

February 26, 2015

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of CenterPoint Energy, Inc. (the “Company”) on Form 10-K for the year ended December 31, 2014 (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I, Gary L. Whitlock, Chief Financial Officer, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

1.           The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.           The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Gary L. Whitlock

Gary L. Whitlock

Executive Vice President and Chief Financial Officer

February 26, 2015

XML

Indexed Debt Securities (ZENS) and Securities Related to ZENS (Tables)

12 Months Ended

Dec. 31, 2014

Indexed Debt Securities [Abstract]

Summarized Financial Information on Investment in Time Warner Securities and Indexed Debt Security Obligation

The following table sets forth summarized financial information regarding CenterPoint Energy’s investment in TW Securities and each component of CenterPoint Energy’s ZENS obligation (in millions). 

	TW Securities			Debt Component of ZENS			Derivative Component of ZENS
Balance at December 31, 2011	$	386		$	131		$	197
Accretion of debt component of ZENS	—			24			—
2% interest paid	—			(17		)	—
Loss on indexed debt securities	—			—			71
Gain on TW Securities	154			—			—
Balance at December 31, 2012	540			138			268
Accretion of debt component of ZENS	—			24			—
2% interest paid	—			(17		)	—
Sale of TW Securities	(9		)	—			—
Redemption of indexed debt securities	—			(2		)	(6		)
Loss on indexed debt securities	—			—			193
Gain on TW Securities	236			—			—
Balance at December 31, 2013	767			143			455
Accretion of debt component of ZENS	—			26			—
2% interest paid	—			(17		)	—
Loss on indexed debt securities	—			—			86
Gain on TW Securities	163			—			—
Balance at December 31, 2014	$	930		$	152		$	541

XML

Stock-Based Incentive Compensation Plans and Employee Benefit Plans (Change in Control Agreements and Other Employee Matters) (Details)	12 Months Ended
	Dec. 31, 2014
Concentration Risk [Line Items]
Maximum Number Of Times Annual Salary Included In Severance Benefits	3
Number of Employees, Total [Member] | Employees Subject To Collective Bargaining Agreements [Member] | Labor Force Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	31.00%
Workforce Subject to Collective Bargaining Arrangements Expiring within One Year [Member] | Employees Subject To Collective Bargaining Agreements [Member] | Labor Force Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	8.00%

XML

Property, Plant and Equipment (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment, Net, by Type [Abstract]
Total	$ 15,358	$ 14,138
Total accumulated depreciation and amortization	4,856	4,545
Property, plant and equipment, net	10,502	9,593
Depreciation and Amortization [Abstract]
Depreciation expense	521	531	562
Amortization	492	423	488
Total depreciation and amortization expense	1,013	954	1,050
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning balance	134	164
Accretion expense	5	5
Revisions in estimates of cash flows	37	(35)
Ending balance	176	134	164
Electric Transmission & Distribution [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Total	9,393	8,741
Total accumulated depreciation and amortization	3,050	2,907
Depreciation and Amortization [Abstract]
Total depreciation and amortization expense	768	685	729
Natural Gas Distribution [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Total	5,235	4,694
Total accumulated depreciation and amortization	1,493	1,324
Depreciation and Amortization [Abstract]
Total depreciation and amortization expense	201	185	173
Energy Services [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Total	84	82
Total accumulated depreciation and amortization	31	28
Depreciation and Amortization [Abstract]
Total depreciation and amortization expense	5	5	6
Other property [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Total	646	621
Total accumulated depreciation and amortization	282	286
Depreciation and Amortization [Abstract]
Total depreciation and amortization expense	$ 39	$ 39	$ 36
Weighted Average [Member] | Electric Transmission & Distribution [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Weighted Average Useful Lives	31 years
Weighted Average [Member] | Natural Gas Distribution [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Weighted Average Useful Lives	33 years
Weighted Average [Member] | Energy Services [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Weighted Average Useful Lives	27 years
Weighted Average [Member] | Other property [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Weighted Average Useful Lives	22 years

XML

Schedule I: Financial Information of CenterPoint Energy, Inc. (Parent Company) (Statements of Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013		Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Statement of Income Captions [Line Items]
Net Income	$ 176	[1]	$ 143	$ 107	$ 185	$ 113	$ 151	$ (100)	[2]	$ 147	$ 611	$ 311	$ 417
Adjustment to pension and other postretirement plans (net of tax of $5, $25 and $2, respectively)											3	44	(2)
Reclassification of deferred loss from cash flow hedges realized in net income (net of tax)											1	1	0
Other comprehensive income (loss)											4	45	(2)
Comprehensive income											615	356	415
CenterPoint Houston [Member]
Condensed Statement of Income Captions [Line Items]
Percentage on limitation of debt to total capitalization under covenant (in hundredths)											65.00%
CenterPoint Energy [Member]
Condensed Statement of Income Captions [Line Items]
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax											5	25	2
Net Income											611	311	417
Adjustment to pension and other postretirement plans (net of tax of $5, $25 and $2, respectively)											3	44	(2)
Reclassification of deferred loss from cash flow hedges realized in net income (net of tax)											1	1	0
Other comprehensive income (loss)											4	45	(2)
Comprehensive income											$ 615	$ 356	$ 415

[1] CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review.

[2] Effective May 1, 2013, CenterPoint Energy contributed CenterPoint Midstream to Enable. See Note 2(b) and Note 9 for further discussion on the formation of Enable and CenterPoint Energy’s investment in Enable, respectively.

XML

Derivative Instruments (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Weather Hedges [Abstract]
Term of normal weather used as the basis for weather hedges (in years)	10
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Fair Value, Gross Asset	$ 149		$ 43
Derivative Liability, Fair Value, Gross Liability	643		485
Income Statement Impact of Derivative Activity [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(40)		(172)		(91)
Derivative, Credit Risk Related Contingent Features [Abstract]
Total fair value of the derivative instruments that contain credit risk contingent features that are in a net liability position	2		1
The aggregate fair value of assets already posted as collateral	1		1
Credit Risk Contingent Features assets	2		1
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Total	131		34
Energy Related Derivative [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative, Nonmonetary Notional Amount, Volume	804,000		607,000
Derivative Assets (Liabilities), at Fair Value, Net	111	[1]	13	[1]
Collateral netting	64		1
Derivative, Fair Value, Net	47	[2]	13	[2]
Derivative, fair value, offsets, net	64		0
Energy Related Derivative [Member] | Gains (Losses) in Revenue [Member]
Income Statement Impact of Derivative Activity [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	35		11		43
Energy Related Derivative [Member] | Gains (Losses) in Expense: Natural Gas [Member]
Income Statement Impact of Derivative Activity [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	11	[3],[4]	10	[3],[4]	(63)	[3],[4]
Energy Related Derivative [Member] | Current Assets [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	115	[2]	32	[2]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(16)		(8)
Natural gas derivatives (2)	99	[1]	24	[1]
Energy Related Derivative [Member] | Other Noncurrent Assets [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	34	[2]	11	[2]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(2)		(1)
Natural gas derivatives (2)	32	[1]	10	[1]
Energy Related Derivative [Member] | Current Liabilities [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(84)	[2]	(25)	[2]
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	65		8
Derivative Liability	(19)	[1]	(17)	[1]
Energy Related Derivative [Member] | Other Noncurrent Liabilities [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(18)	[2]	(5)	[2]
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	17		1
Derivative Liability	(1)	[1]	(4)	[1]
Energy Related Derivative [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Current Assets [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Fair Value, Gross Asset	101	[5],[6],[7]	28	[10],[8],[9]
Derivative Liability, Fair Value, Gross Liability	1	[5],[6],[7]	4	[10],[8],[9]
Energy Related Derivative [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Noncurrent Assets [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Fair Value, Gross Asset	32	[5],[6],[7]	10	[10],[8]
Derivative Liability, Fair Value, Gross Liability	0	[5],[6],[7]	0	[10],[8]
Energy Related Derivative [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Current Liabilities [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Fair Value, Gross Asset	14	[5],[6],[7]	4	[10],[8]
Derivative Liability, Fair Value, Gross Liability	83	[5],[6],[7]	21	[10],[8]
Energy Related Derivative [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Noncurrent Liabilities [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Fair Value, Gross Asset	2	[5],[6],[7]	1	[10],[8]
Derivative Liability, Fair Value, Gross Liability	18	[5],[6],[7]	5	[10],[8]
Weather Hedge Swaps [Member] | Gains (Losses) in Revenue [Member]
Weather Hedges [Abstract]
Gain (loss) recognized from weather hedges	(11)		(22)		8
IDS Derivative [Member] | Nonoperating Income (Expense) [Member]
Income Statement Impact of Derivative Activity [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(86)		(193)		(71)
IDS Derivative [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Current Liabilities [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Fair Value, Gross Asset	0		0
Derivative Liability, Fair Value, Gross Liability	541		455
Electric Transmission & Distribution [Member]
Weather Hedges [Abstract]
Weather Hedge, Amount, maximum	8		8
Long [Member] | Energy Related Derivative [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative, Nonmonetary Notional Amount, Volume	60,000		46,000
Energy Marketers [Member]
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Total	4		4
Financial Institutions [Member]
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Total	0		9
Retail End Users [Member]
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Total	127	[11]	21	[11]
Swap [Member] | Long [Member] | Energy Related Derivative [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative, Nonmonetary Notional Amount, Volume	127,000		99,000
Price Stabilization Activities [Member] | Natural Gas Distribution [Member] | Energy Related Derivative [Member] | Gains (Losses) in Expense: Natural Gas [Member]
Income Statement Impact of Derivative Activity [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0		0		(38)
External Credit Rating, Investment Grade [Member]
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Total	4	[12]	3	[12]
External Credit Rating, Investment Grade [Member] | Energy Marketers [Member]
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Total	2	[12]	1	[12]
External Credit Rating, Investment Grade [Member] | Financial Institutions [Member]
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Total	0	[12]	1	[12]
External Credit Rating, Investment Grade [Member] | Retail End Users [Member]
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Total	2	[11],[12]	1	[11],[12]
Enable Midstream Partners [Member] | Forward Contracts [Member] | Energy Related Derivative [Member] | Gains (Losses) in Expense: Natural Gas [Member]
Income Statement Impact of Derivative Activity [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	2		(2)
Enable Midstream Partners [Member] | Forward Contracts [Member] | Energy Related Derivative [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Current Assets [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Fair Value, Gross Asset			1
2012To2013 [Member] | Natural Gas Distribution [Member]
Derivative [Line Items]
Weather Hedge, Bilateral Cap Amount	15
2013To2014 [Member] | Natural Gas Distribution [Member]
Derivative [Line Items]
Weather Hedge, Bilateral Cap Amount	16
2014To2015 [Member] | Natural Gas Distribution [Member]
Derivative [Line Items]
Weather Hedge, Bilateral Cap Amount	$ 16

[1] The derivative assets and liabilities on the Consolidated Balance Sheets exclude accounts receivable or accounts payable that, should they exist, could be used as offsets to these balances in the event of a default.

[2] Gross amounts recognized include some derivative assets and liabilities that are not subject to master netting arrangements.

[3] The Gains (Losses) in Expense: Natural Gas includes $-0-, $-0- and $(38) million of costs in 2014, 2013 and 2012, respectively, associated with price stabilization activities of the Natural Gas Distribution business segment that will be ultimately recovered through purchased gas adjustments.

[4] The Gains (Losses) in Expense: Natural Gas includes $2 million and $(2) million during the years ended December 31, 2014 and 2013, respectively, related to physical forwards purchased from Enable.

[5] Derivative Assets and Derivative Liabilities include no material amounts related to physical forward transactions with Enable.

[6] Natural gas contracts are presented on a net basis in the Consolidated Balance Sheets. Natural gas contracts are subject to master netting arrangements. This netting applies to all undisputed amounts due or past due and causes derivative assets (liabilities) to be ultimately presented net in a liability (asset) account within the Consolidated Balance Sheets. The net of total non-trading derivative assets and liabilities was a $111 million asset as shown on CenterPoint Energy’s Consolidated Balance Sheets (and as detailed in the table below), and was comprised of the natural gas contracts derivative assets and liabilities separately shown above offset by collateral netting of $64 million.

[7] The fair value shown for natural gas contracts is comprised of derivative gross volumes totaling 804 billion cubic feet (Bcf) or a net 60 Bcf long position. Of the net long position, basis swaps constitute 127 Bcf.

[8] The fair value shown for natural gas contracts is comprised of derivative gross volumes totaling 607 Bcf or a net 46 Bcf long position. Of the net long position, basis swaps constitute 99 Bcf.

[9] The $28 million Derivative Current Asset includes $1 million related to physical forwards purchased from Enable.

[10] Natural gas contracts are presented on a net basis in the Consolidated Balance Sheets. Natural gas contracts are subject to master netting arrangements. This netting applies to all undisputed amounts due or past due and causes derivative assets (liabilities) to be ultimately presented net in a liability (asset) account within the Consolidated Balance Sheets. The net of total non-trading derivative assets and liabilities was a $13 million asset as shown on CenterPoint Energy’s Consolidated Balance Sheets (and as detailed in the table below), and was comprised of the natural gas contracts derivative assets and liabilities separately shown above, offset by collateral netting of less than $1 million.

[11] End users are comprised primarily of customers who have contracted to fix the price of a portion of their physical gas requirements for future periods.

[12] “Investment grade” is primarily determined using publicly available credit ratings and considers credit support (including parent company guarantees) and collateral (including cash and standby letters of credit). For unrated counterparties, CenterPoint Energy determines a synthetic credit rating by performing financial statement analysis and considers contractual rights and restrictions and collateral.

XML

Background (Details) (Enable Midstream Partners [Member])	Dec. 31, 2014	May 30, 2014	Mar. 31, 2014
Enable Midstream Partners [Member]
Equity Method Investment, Ownership Percentage	55.40%	54.70%	58.30%

XML

Goodwill (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill by Reportable Segments

Goodwill by reportable business segment as of both December 31, 2014 and 2013 are as follows (in millions):

Natural Gas Distribution	$	746
Energy Services (1)	83
Other	11
Total	$	840

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Schedule I: Financial Information of CenterPoint Energy, Inc. (Parent Company) (Note Disclosures) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Notes to Financial Statements of Parent, Long-Term Debt:
Maximum amount of credit facility	$ 2,100	$ 2,100
CERC Corp [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Maximum amount of credit facility	600	600
Percentage on limitation of debt to total capitalization under covenant (in hundredths)	65.00%
CenterPoint Energy [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Maximum amount of credit facility	1,200	1,200
CenterPoint Houston [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Maximum amount of credit facility	300	300
Percentage on limitation of debt to total capitalization under covenant (in hundredths)	65.00%
Revolving Credit Facility [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	0	0
Revolving Credit Facility [Member] | CERC Corp [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	0	0
Revolving Credit Facility [Member] | CenterPoint Energy [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	0	0
Revolving Credit Facility [Member] | CenterPoint Houston [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	0	0
Letter of Credit [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	10	10
Letter of Credit [Member] | CERC Corp [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	0	0
Letter of Credit [Member] | CenterPoint Energy [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	6	6
Letter of Credit [Member] | CenterPoint Houston [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	4	4
Commercial Paper [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	532	118
Commercial Paper [Member] | CERC Corp [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	341	118
Commercial Paper [Member] | CenterPoint Energy [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	191	0
Commercial Paper [Member] | CenterPoint Houston [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Borrowings from credit facility	0	0
Line of Credit [Member] | CERC Corp [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Percentage on limitation of debt to total capitalization under covenant (in hundredths)	65.00%
Line of Credit [Member] | CenterPoint Energy [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Percentage on limitation of debt to total capitalization under covenant (in hundredths)	65.00%
Percentage on limitation of debt to total capitalization under covenant amended (in hundredths)	70.00%
Restoration Cost Expected Cost	100
Consecutive Period for System Restoration Costs to Exceed $100 million (in months)	12
Line of Credit [Member] | CenterPoint Houston [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Percentage on limitation of debt to total capitalization under covenant (in hundredths)	65.00%
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit [Member] | CERC Corp [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Debt Instrument, Basis Spread on Variable Rate	1.50%
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit [Member] | CenterPoint Energy [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Debt Instrument, Basis Spread on Variable Rate	1.25%
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit [Member] | CenterPoint Houston [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Debt Instrument, Basis Spread on Variable Rate	1.125%
CenterPoint Midstream Guarantees [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Guarantor Obligations, Maximum Exposure, Undiscounted	100
Long term Debt Excluding Indexed Debt Securities [Member] | CenterPoint Energy [Member]
Notes to Financial Statements of Parent, Long-Term Debt:
Debt Maturities in 2015	269
Debt Maturities in 2016	0
Debt Maturities in 2017	250
Debt Maturities in 2018	350
Debt Maturities in 2019	$ 191

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Unconsolidated Affiliates (Details) (USD $)	12 Months Ended						0 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012		Apr. 16, 2014	Jan. 23, 2015	May 30, 2014	Mar. 31, 2014	May 01, 2013	Jun. 01, 2015	Jan. 29, 2015
Equity in earnings of unconsolidated affiliates	$ 308,000,000		$ 188,000,000		$ 31,000,000
CenterPoint Energy's approximate 58.3% interest	4,869,000,000		4,753,000,000
Equity Method Investment_Basis Difference_Goodwill	(217,000,000)	[1]	(229,000,000)	[1]
Equity Method Investment_Basis Difference To Be Accreted	(132,000,000)	[2]	(205,000,000)	[2]
CenterPoint Energy's basis difference	(349,000,000)		(434,000,000)
Equity Method Investments Underlying Equity in Net Assets, Net of Basis Difference	4,520,000,000		4,319,000,000
Proceeds from Equity Method Investment, Dividends or Distributions	305,000,000		129,000,000		39,000,000
Investment in unconsolidated affiliates	4,521,000,000		4,518,000,000
Enable Midstream Partners [Member]
Notes receivable - affiliated companies	363,000,000
Share Price	$ 19.39
Southeast Supply Header LLC [Member]
Equity Method Investment, Ownership Percentage	0.10%									25.05%
Equity Method Investment, Additional Contribution of Ownership Percentage									24.95%		24.95%
equity method investment, Additional Contribution of ownership, value									196,000,000
Equity in earnings of unconsolidated affiliates	5,000,000	[3]	15,000,000	[3]	26,000,000	[3]
Proceeds from Equity Method Investment, Dividends or Distributions	7,000,000	[3]	23,000,000	[3]	32,000,000	[3]
Investment in unconsolidated affiliates	1,000,000	[4]	199,000,000	[4]
Waskom Gas Processing Company [Member]
Equity in earnings of unconsolidated affiliates	0	[5]	0	[5]	5,000,000	[5]
Proceeds from Equity Method Investment, Dividends or Distributions	0	[5]	0	[5]	7,000,000	[5]
Enable Midstream Partners [Member]
Partners' Capital Account, Units, Sold in Public Offering							28,750,000
Share Price							$ 20.00
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity	(14,000,000)
Proceeds from Issuance Initial Public Offering							464,000,000
Equity Method Investment, Ownership Percentage	55.40%								54.70%	58.30%
Investment Owned, Restricted, Carrying Value Per Unit at Date of Balance Sheet	$ 19.33
Equity in earnings of unconsolidated affiliates	303,000,000	[6]	173,000,000	[6]	0	[6]
Operating revenues	3,367,000,000		2,123,000,000	[7]
Cost of sales, excluding depreciation and amortization	1,914,000,000		1,241,000,000	[7]
Operating income	586,000,000		322,000,000	[7]
Net income attributable to Enable	530,000,000		289,000,000	[7]
CenterPoint Energy's approximate 58.3% interest	298,000,000		168,000,000	[7]
Basis difference accretion gain	5,000,000		5,000,000	[7]
CenterPoint Energy’s equity in earnings, net	303,000,000		173,000,000	[7]
Current assets	438,000,000		549,000,000
Non-current assets	11,399,000,000		10,683,000,000
Current liabilities	671,000,000		720,000,000
Non-current liabilities	2,343,000,000		2,331,000,000
Noncontrolling interest	31,000,000		33,000,000
Enable Partners' Capital	8,792,000,000		8,148,000,000
Proceeds from Equity Method Investment, Dividends or Distributions	298,000,000	[6]	106,000,000	[6]	0	[6]
Investment in unconsolidated affiliates	4,520,000,000		4,319,000,000								4,300,000,000
Enable Midstream Partners [Member] | ArcLight [Member]
Partners' Capital Account, Units, Sold in Public Offering							3,750,000
Enable Guaranteed Senior Notes [Member] | CERC Corp [Member]
Guarantor Obligations, Maximum Exposure, Undiscounted	1,100,000,000
Enable Midstream Partners [Member]
Interest Income, Related Party	8,000,000		5,000,000
Due from Related Parties, Current	4,000,000		4,000,000
Transitional Service [Member] | Enable Midstream Partners [Member]
Reimbursement Revenue	163,000,000		119,000,000
Accounts Receivable, Related Parties	28,000,000		21,000,000
Common Stock [Member] | Enable Midstream Partners [Member]
Equity Method Investment, Ownership, Shares	94,126,366								6,322,457
Subordinated Units [Member] | Enable Midstream Partners [Member]
Equity Method Investment, Ownership, Shares	139,704,916
Natural Gas Expenses [Member] | Enable Midstream Partners [Member]
Affiliate Costs	130,000,000		123,000,000
Accounts payable - subsidiaries	23,000,000		22,000,000
Subsequent Event [Member] | Enable Midstream Partners [Member]
Proceeds from Equity Method Investment, Dividends or Distributions								72,000,000
Subsequent Event [Member] | Common Stock [Member] | Enable Midstream Partners [Member]
Equity Method Investment, Ownership, Shares												25,341
Scenario, Forecast [Member] | Enable Midstream Partners [Member]
Share Price													$ 17.34
Scenario, Forecast [Member] | Enable Midstream Partners [Member]
Equity Method Investment, Decrease in Carrying Value													465,000,000
Enable Midstream Partners [Member] | Enable Guaranteed Senior Notes [Member] | CERC Corp [Member]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 1,100,000,000
Indebtedness to CERC Corp. [Member] | Enable Midstream Partners [Member]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum (in hundredths)	2.10%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	2.45%

[1] The difference relates to CenterPoint Energy’s proportionate share of Enable’s goodwill arising from its acquisition of Enogex, and therefore will be recognized by CenterPoint Energy upon dilution or disposition of its interest in Enable.

[2] The difference will be recognized by CenterPoint Energy over 30 years beginning May 1, 2013. CenterPoint Energy will also adjust the accretable basis difference for dilution or disposition of its interest in Enable.

[3] On each of May 1, 2013 and May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

[4] On May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

[5] On July 31, 2012, Waskom became a wholly owned subsidiary of CenterPoint Energy. Beginning on August 1, 2012, Waskom’s operating results are consolidated on the Statements of Consolidated Income. On May 1, 2013, CenterPoint Energy contributed Waskom to Enable.

[6] On May 1, 2013, CenterPoint Energy formed Enable with OGE and ArcLight.

[7] The amounts included in this column represent the eight month period from formation of Enable on May 1, 2013 through December 31, 2013.

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Schedule I: Financial Information of CenterPoint Energy, Inc. (Parent Company) (Balance Sheets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 298	$ 208	$ 646	$ 220
Total current assets	3,268	2,658
Other Assets:
Other assets	147	162
Total other assets	9,430	9,619
Total Assets	23,200	21,870	22,871
Current Liabilities:
Indexed debt	152	143	138	131
Current portion of other long-term debt	271	0
Indexed debt securities derivative	541	455	268	197
Taxes accrued	161	184
Interest accrued	124	124
Other	383	402
Total current liabilities	3,475	3,019
Other Liabilities:
Accumulated deferred tax liabilities	4,757	4,542
Benefit obligations	953	802
Other	251	205
Total other liabilities	7,168	6,705
Long-Term Debt	8,009	7,817
Shareholders' Equity:
Total shareholders’ equity	4,548	4,329	4,301
Total Liabilities and Shareholders’ Equity	23,200	21,870
CenterPoint Energy [Member]
Current Assets:
Cash and cash equivalents	0	0	0	0
Notes receivable — subsidiaries	227	88
Accounts receivable — subsidiaries	230	116
Other assets	87	21
Total current assets	544	225
Other Assets:
Investment in subsidiaries	6,529	6,142
Other assets	811	649
Total other assets	7,340	6,791
Total Assets	7,884	7,016
Current Liabilities:
Notes payable — subsidiaries	142	11
Indexed debt	152	143
Current portion of other long-term debt	269	0
Indexed debt securities derivative	541	455
Accounts payable - subsidiaries	80	35
Other	2	5
Taxes accrued	575	517
Interest accrued	13	13
Other	22	0
Total current liabilities	1,796	1,179
Other Liabilities:
Accumulated deferred tax liabilities	240	232
Benefit obligations	441	340
Other	1	0
Total other liabilities	682	572
Long-Term Debt	858	936
Shareholders' Equity:
Common stock	4	4
Additional paid-in capital	4,169	4,157
Retained earnings	461	258
Accumulated other comprehensive loss	(86)	(90)
Total shareholders’ equity	4,548	4,329
Total Liabilities and Shareholders’ Equity	$ 7,884	$ 7,016

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Unaudited Quarterly Information

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information [Text Block]

Unaudited Quarterly Information

Summarized quarterly financial data is as follows:

	Year Ended December 31, 2014
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter (3)
	(in millions, except per share amounts)
Revenues	$	3,163	$	1,884	$	1,807	$	2,372
Operating income	295		186		233		221
Net income	185		107		143		176
Basic earnings per share(1)	$	0.43	$	0.25	$	0.33	$	0.41
Diluted earnings per share(1)	$	0.43	$	0.25	$	0.33	$	0.41

	Year Ended December 31, 2013
	First Quarter		Second Quarter (2)			Third Quarter		Fourth Quarter
	(in millions, except per share amounts)
Revenues	$	2,388	$	1,894		$	1,640	$	2,184
Operating income	332		223			244		211
Net income (loss)	$	147	$	(100	)	$	151	$	113
Basic earnings (loss) per share(1)	$	0.34	$	(0.23	)	$	0.35	$	0.26
Diluted earnings (loss) per share(1)	$	0.34	$	(0.23	)	$	0.35	$	0.26

(1) Quarterly earnings per common share are based on the weighted average number of shares outstanding during the quarter, and the sum of the quarters may not equal annual earnings per common share.

(2) Effective May 1, 2013, CenterPoint Energy contributed CenterPoint Midstream to Enable.  See Note 2(b) and Note 9 for further discussion on the formation of Enable and CenterPoint Energy’s investment in Enable, respectively.

(3) CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review.

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Regulatory Accounting (Regulatory Assets and Liabilities) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Schedule of Regulatory Assets and Liabilities [Line Items]
Unrecognized equity return (1)	$ (442)	[1]	$ (508)	[1]
Total regulatory assets	3,527		3,726
Regulatory liabilities	1,206		1,152
Total regulatory assets and liabilities, net	2,321		2,574
Amount of allowed equity return on the true-up balance that was recognized in the period	68		45		47
Removal Costs [Member]
Schedule of Regulatory Assets and Liabilities [Line Items]
Regulatory liabilities	958		941
Other Regulatory Assets (Liabilities) [Member]
Schedule of Regulatory Assets and Liabilities [Line Items]
Regulatory liabilities	248		211
Pension and Other Postretirement Plans Costs [Member]
Schedule of Regulatory Assets and Liabilities [Line Items]
Remaining amounts of regulatory assets for which no return on investment during recovery period is provided	0		5
Securitized regulatory assets
Schedule of Regulatory Assets and Liabilities [Line Items]
Total regulatory assets	2,738		3,179
Unamortized loss on reacquired debt
Schedule of Regulatory Assets and Liabilities [Line Items]
Total regulatory assets	104		111
Pension and postretirement-related regulatory asset (2)
Schedule of Regulatory Assets and Liabilities [Line Items]
Total regulatory assets	922	[2]	732	[2]
Other Regulatory Assets (Liabilities) [Member]
Schedule of Regulatory Assets and Liabilities [Line Items]
Total regulatory assets	$ 205	[3]	$ 212	[3]

[1] As of December 31, 2014, CenterPoint Energy has not recognized an allowed equity return of $442 million because such return will be recognized as it is recovered in rates through 2024. During the years ended December 31, 2014, 2013 and 2012, CenterPoint Houston recognized approximately $68 million, $45 million and $47 million, respectively, of the allowed equity return. The timing of CenterPoint Energy’s recognition of the allowed equity return will vary each period based on amounts actually collected during the period. The actual amounts recovered for the allowed equity return are reviewed and adjusted at least annually by the Texas Utility Commission to correct any over-collections or under-collections during the preceding 12 months and to provide for the full and timely recovery of the allowed equity return.

[2] CenterPoint Houston’s actuarially determined pension and other postemployment expense in excess of the amount being recovered through rates is being deferred for rate making purposes. Deferred pension and other postemployment expenses of $-0- and $5 million as of December 31, 2014 and 2013, respectively, were not earning a return.

[3] Other regulatory assets that are not earning a return were not material as of December 31, 2014 and 2013.

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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Lease Commitments

The following table sets forth information concerning CenterPoint Energy’s obligations under non-cancelable long-term operating leases at December 31, 2014, which primarily consist of rental agreements for building space, data processing equipment, compression equipment and rights of way (in millions):

2015	$	5
2016	4
2017	3
2018	2
2019	2
2020 and beyond	7
Total	$	23

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on a Recurring Basis

The following tables present information about CenterPoint Energy’s assets and liabilities (including derivatives that are presented net) measured at fair value on a recurring basis as of December 31, 2014 and 2013, and indicate the fair value hierarchy of the valuation techniques utilized by CenterPoint Energy to determine such fair value.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Netting Adjustments (1)			Balance at December 31, 2014
	(in millions)
Assets
Corporate equities	$	932	$	—	$	—	$	—		$	932
Investments, including money market funds	54		—		—		—			54
Natural gas derivatives (2)	7		122		20		(18		)	131
Total assets	$	993	$	122	$	20	$	(18	)	$	1,117
Liabilities
Indexed debt securities derivative	$	—	$	541	$	—	$	—		$	541
Natural gas derivatives (2)	22		77		3		(82		)	20
Total liabilities	$	22	$	618	$	3	$	(82	)	$	561

(1) Amounts represent the impact of legally enforceable master netting arrangements that allow CenterPoint Energy to settle positive and negative positions and also include cash collateral of $64 million posted with the same counterparties.

(2) Natural gas derivatives include no material amounts related to physical forward transactions with Enable.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Netting Adjustments (1)			Balance at December 31, 2013
	(in millions)
Assets
Corporate equities	$	770	$	—	$	—	$	—		$	770
Investments, including money market funds	61		—		—		—			61
Natural gas derivatives (2)	5		33		5		(9		)	34
Total assets	$	836	$	33	$	5	$	(9	)	$	865
Liabilities
Indexed debt securities derivative	$	—	$	455	$	—	$	—		$	455
Natural gas derivatives	1		27		2		(9		)	21
Total liabilities	$	1	$	482	$	2	$	(9	)	$	476

(1) Amounts represent the impact of legally enforceable master netting arrangements that allow CenterPoint Energy to settle positive and negative positions and also include cash collateral of less than $1 million posted with the same counterparties.

(2) The (Level 2) Natural gas derivative assets of $33 million include $1 million related to physical forwards purchased from Enable.

Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs

The following tables present additional information about assets or liabilities, including derivatives that are measured at fair value on a recurring basis for which CenterPoint Energy has utilized Level 3 inputs to determine fair value:

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Derivative assets and liabilities, net
	Year Ended December 31,
	2014			2013			2012
	(in millions)
Beginning balance	$	3		$	2		$	6
Total gains	14			3			3
Total settlements	1			(3		)	(6		)
Transfers out of Level 3	—			—			(1		)
Transfers into Level 3	(1		)	1			—
Ending balance (1)	$	17		$	3		$	2
The amount of total gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at the reporting date	$	16		$	2		$	1

(1) During 2014, 2013 and 2012, CenterPoint Energy did not have significant Level 3 purchases or sales.

Estimated Fair Value of Financial Instruments, Debt Instruments

	December 31, 2014				December 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(in millions)
Financial assets:
Notes receivable - affiliated companies	$	363	$	362	$	363	$	363
Financial liabilities:
Long-term debt	$	8,652	$	9,427	$	8,171	$	8,670

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Stock-Based Incentive Compensation Plans and Employee Benefit Plans (Pension and Postretirement Benefits) (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended		12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Pension and Postretirement Benefits [Abstract]
New percentage of eligible earnings used to determine retirement benefits (in hundredths)	5.00%		5.00%
Percent vested			100.00%
Pension plan minimum vesting period (in years)			3 years
Approximate amortization period of transition obligation (in years)			20 years
Amounts recognized in balance sheets
Other liabilities-benefit obligations	$ (953)	$ (802)	$ (953)		$ (802)
Annualized individual discount rates based on time period, minimum			6 months
Annualized individual discount rates based on time period, maximum			99 years
Amounts reclassified from accumulated other comprehensive income: [Abstract]
Beginning Balance			(88)		(132)
Other comprehensive income (loss) before reclassifications (1)			(3)	[1]	52	[1]
Amounts reclassified from accumulated other comprehensive income:
Amortization of prior service credit			2	[2]	3	[2]
Actuarial losses (2)			9	[2]	14	[2]
Total reclassifications from accumulated other comprehensive income			11		17
Tax expense			(5)		(25)		(2)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent			3		44		(2)
Ending Balance	(85)	(88)	(85)		(88)		(132)
Changes in plan assets and benefit obligations recognized in other comprehensive income
Amortization of prior service credit			2	[2]	3	[2]
Effect of a one-percentage point change in assumed health care cost trend rates
Effect of a one-percentage point increase on post-retirement benefit obligation			19
Effect of a one-percentage point decrease on post-retirement benefit obligation			16
Effect of a one-percentage point increase on total service and interest cost			1
Effect of a one-percentage point decrease on total service and interest cost			1
Postretirement Benefits [Member]
Components of net periodic costs [Abstract]
Service cost			2		2		1
Interest cost			22		20		23
Expected return on plan assets			(7)		(7)		(7)
Amortization of prior service cost (credit)			(1)		1		3
Amortization of net loss			1		6		4
Amortization of transition obligation			5		7		7
Benefit enhancement			0		0		1
Curtailment (1)			0	[3]	0	[3]	0	[3]
Net periodic cost			22		29		32
Assumptions used to determine net periodic benefit (income) cost
Discount rate			4.75%		3.90%		4.80%
Expected return on plan assets	5.20%	5.50%	5.50%		5.50%		5.50%
Rate of increase in compensation levels			0.00%		0.00%		0.00%
Change in benefit obligation [Roll Forward]
Benefit obligation, beginning of year	529	476	476		538
Service cost			2		2		1
Interest cost			22		20		23
Participant contributions			7		7
Benefits paid			(32)		(34)
Actuarial (gain) loss			52		(60)
Medicare reimbursement			3		3
Plan amendment			1		0
Curtailment			(2)		0
Benefit obligation, end of year	529	476	529		476		538
Change in plan assets [Rollforward]
Fair value of plan assets, beginning of year	141	140	140		139
Employer contributions			18		19
Participant contributions			7		7
Benefits paid			(32)		(34)
Actual investment return			8		9
Fair value of plan assets, end of year	141	140	141		140		139
Funded status of plan
Funded status, end of year	(388)	(336)	(388)		(336)
Amounts recognized in balance sheets
Current liabilities-other	(9)	(9)	(9)		(9)
Other liabilities-benefit obligations	(379)	(327)	(379)		(327)
Net liability, end of year	(388)	(336)	(388)		(336)
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	3.90%	4.75%	3.90%		4.75%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets	5.20%	5.50%	5.50%		5.50%		5.50%
Defined Benefit Plan Prescription Drug Cost Trend Rate Assumed For Next Fiscal Year			6.50%		7.00%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate			5.00%		5.50%
Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate	2024	2018	2024		2018
Defined Benefit Plan Year That Prescription Drug Rate Reaches Ultimate Trend Rate			2024		2018
Amounts reclassified from accumulated other comprehensive income:
Amortization of prior service credit			(1)
Total expense recognized in net periodic cost and other comprehensive income			30
Amounts recognized in accumulated other comprehensive loss
Unrecognized actuarial loss	14	7	14		7
Unrecognized prior service cost	2	1	2		1
Net amount recognized in accumulated other comprehensive loss	16	8	16		8
Changes in plan assets and benefit obligations recognized in other comprehensive income
Net gain (loss)			(6)
Amortization of net loss (gain)			(1)
Amortization of prior service credit			(1)
Total recognized in comprehensive income			(8)
Amounts that will be amortized from accumulated other comprehensive loss in next fiscal year
Unrecognized actuarial loss			1
Unrecognized prior service cost			0
Amounts in accumulated comprehensive loss to be recognized in net periodic cost in 2015			1
Pension Plan [Member]
Components of net periodic costs [Abstract]
Service cost			42		44		35
Interest cost			100		90		100
Expected return on plan assets			(125)		(135)		(121)
Amortization of prior service cost (credit)			10		10		8
Amortization of net loss			44		63		60
Amortization of transition obligation			0		0		0
Benefit enhancement			0		0		0
Curtailment (1)			6	[3]	0	[3]	0	[3]
Net periodic cost			77		72		82
Assumptions used to determine net periodic benefit (income) cost
Discount rate			4.80%		4.00%		4.90%
Expected return on plan assets	6.50%	7.00%	7.00%		8.00%		8.00%
Rate of increase in compensation levels			3.90%		4.00%		4.20%
Change in benefit obligation [Roll Forward]
Benefit obligation, beginning of year	2,403	2,153	2,153		2,316
Service cost			42		44		35
Interest cost			100		90		100
Participant contributions			0		0
Benefits paid			(156)		(142)
Actuarial (gain) loss			264		(155)
Medicare reimbursement			0		0
Plan amendment			0		0
Curtailment			0		0
Benefit obligation, end of year	2,403	2,153	2,403		2,153		2,316
Change in plan assets [Rollforward]
Fair value of plan assets, beginning of year	1,925	1,803	1,803		1,698
Employer contributions			97		91
Participant contributions			0		0
Benefits paid			(156)		(142)
Actual investment return			181		156
Fair value of plan assets, end of year	1,925	1,803	1,925		1,803		1,698
Funded status of plan
Funded status, end of year	(478)	(350)	(478)		(350)
Amounts recognized in balance sheets
Current liabilities-other	(31)	(9)	(31)		(9)
Other liabilities-benefit obligations	(447)	(341)	(447)		(341)
Net liability, end of year	(478)	(350)	(478)		(350)
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	4.05%	4.80%	4.05%		4.80%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets	6.50%	7.00%	7.00%		8.00%		8.00%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	4.00%	3.90%	4.00%		3.90%
Accumulated benefit obligation for all defined benefit pension plans	2,371	2,123	2,371		2,123
Amounts reclassified from accumulated other comprehensive income:
Amortization of prior service credit			2
Total expense recognized in net periodic cost and other comprehensive income			56
Amounts recognized in accumulated other comprehensive loss
Unrecognized actuarial loss	113	126	113		126
Unrecognized prior service cost	4	12	4		12
Net amount recognized in accumulated other comprehensive loss	117	138	117		138
Changes in plan assets and benefit obligations recognized in other comprehensive income
Net gain (loss)			10
Amortization of net loss (gain)			9
Amortization of prior service credit			2
Total recognized in comprehensive income			21
Amounts that will be amortized from accumulated other comprehensive loss in next fiscal year
Unrecognized actuarial loss			12
Unrecognized prior service cost			1
Amounts in accumulated comprehensive loss to be recognized in net periodic cost in 2015			13
Pension Plan Qualified [Member]
Change in plan assets [Rollforward]
Employer contributions			87
Pension benefits that have accumulated benefit obligations in excess of plan assets
Accumulated benefit obligation	2,273	2,031	2,273		2,031
Projected benefit obligation	2,304	2,061	2,304		2,061
Fair value of plan assets	1,925	1,803	1,925		1,803
Pension Plan Non Qualified [Member]
Change in plan assets [Rollforward]
Employer contributions			10
Pension benefits that have accumulated benefit obligations in excess of plan assets
Accumulated benefit obligation	98	92	98		92
Projected benefit obligation	98	92	98		92
Fair value of plan assets	$ 0	$ 0	$ 0		$ 0
Age Pre 65 [Member] | Postretirement Benefits [Member]
Amounts recognized in balance sheets
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year			7.25%		7.00%
Age Post 65 [Member] | Postretirement Benefits [Member]
Amounts recognized in balance sheets
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year			8.50%		7.50%

[1] Total other comprehensive income (loss) related to the re-measurement of pension, postretirement and other postemployment plans.

[2] These accumulated other comprehensive components are included in the computation of net periodic cost.

[3] During the fourth quarter of 2014, CenterPoint Energy recognized a curtailment pension loss of $6 million related to employees seconded to Enable. Substantially all of the seconded employees became employees of Enable effective January 1, 2015.

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Reportable Business Segments (Revenues by Products and Services) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013		Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012
Revenues by Products and Services:
Revenues	$ 2,372	[1]	$ 1,807	$ 1,884	$ 3,163	$ 2,184	$ 1,640	$ 1,894	[2]	$ 2,388	$ 9,226	$ 8,106		$ 7,452
Electric Delivery [Member]
Revenues by Products and Services:
Revenues											2,845	2,570		2,540
Retail Gas Sales [Member]
Revenues by Products and Services:
Revenues											5,049	4,150		3,328
Wholesale Gas Sales [Member]
Revenues by Products and Services:
Revenues											1,159	913		613
Gas Transportation and Processing [Member]
Revenues by Products and Services:
Revenues											38	345		847
Energy Products Or Services [Member]
Revenues by Products and Services:
Revenues											135	128		124
Interstate Pipelines [Member]
Revenues by Products and Services:
Revenues												$ 133	[3],[4]	$ 356	[3]

[1] CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review.

[2] Effective May 1, 2013, CenterPoint Energy contributed CenterPoint Midstream to Enable. See Note 2(b) and Note 9 for further discussion on the formation of Enable and CenterPoint Energy’s investment in Enable, respectively.

[3] Interstate Pipelines recorded equity income of $7 million and $26 million in the years ended December 31, 2013 and 2012, respectively, from its interest in SESH, a jointly-owned pipeline. These amounts are included in Equity in earnings of unconsolidated affiliates under the Other Income (Expense) caption. Interstate Pipelines’ investment in SESH was $404 million as of December 31, 2012, and is included in Investment in unconsolidated affiliates. As discussed above, effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable and equity earnings associated with its interest in SESH under its Midstream Investments segment, and no longer has an Interstate Pipelines reporting segment prospectively.

[4] Results reflected in the year ended December 31, 2013 represent only January 2013 through April 2013.

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Short Term Borrowings and Long Term Debt (Long-term Debt) (Details) (USD $)	12 Months Ended		0 Months Ended
	Dec. 31, 2014		Jun. 02, 2014	Mar. 03, 2014	Dec. 31, 2013		Mar. 17, 2014
Debt Instrument [Line Items]
Debt, Current	$ 848,000,000	[1]			$ 540,000,000	[1]
Long-term Debt, Excluding Current Maturities	8,009,000,000				7,817,000,000
Long-term Debt, Current Maturities	795,000,000	[1]			497,000,000	[1]
Total short-term borrowings	53,000,000	[1]			43,000,000	[1]
Line of Credit Facility [Abstract]
Size of Facility	2,100,000,000				2,100,000,000
Long term Debt Excluding ZENS [Member]
Annual maturities of long term debt, capital leases, and sinking fund requirements, excluding ZENS obligations [Abstract]
2015	641,000,000
2016	716,000,000
2017	911,000,000
2018	1,100,000,000
2019	1,000,000,000
Transition And System Restoration Bonds [Member]
Annual maturities of long term debt, capital leases, and sinking fund requirements, excluding ZENS obligations [Abstract]
2015	372,000,000
2016	391,000,000
2017	411,000,000
2018	434,000,000
2019	458,000,000
CenterPoint Houston [Member]
Debt Instrument [Line Items]
Capital Lease Obligations, Noncurrent	1,000,000				0
Capital Lease Obligations, Current	0	[1]			0	[1]
Line of Credit Facility [Abstract]
Size of Facility	300,000,000				300,000,000
Percentage on limitation of debt to total capitalization under covenant (in hundredths)	65.00%
CenterPoint Houston [Member] | First mortgage bonds 9.15% due 2021
Debt Instrument [Line Items]
Long-Term	102,000,000				102,000,000
Current	0	[1]			0	[1]
Debt Instrument, Interest Rate, Stated Percentage (in hundredths)	9.15%
Annual maturities of long term debt, capital leases, and sinking fund requirements, excluding ZENS obligations [Abstract]
Secured debt amount with asset liens	102,000,000
Replacement fund requirements to be satisfied in 2015	209,000,000
Sinking fund requirements to be satisfied in 2015	1,600,000
CenterPoint Houston [Member] | General mortgage bonds 2.25% to 6.95% due 2022 to 2044
Debt Instrument [Line Items]
Long-Term	1,912,000,000				1,312,000,000
Current	0	[1]			0	[1]
Annual maturities of long term debt, capital leases, and sinking fund requirements, excluding ZENS obligations [Abstract]
Secured debt amount with asset liens	2,400,000,000
Parent Company [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	858,000,000				936,000,000
Capital Lease Obligations, Noncurrent	2,000,000				0
Capital Lease Obligations, Current	2,000,000	[1]			0	[1]
Line of Credit Facility [Abstract]
Size of Facility	1,200,000,000				1,200,000,000
Parent Company [Member] | Commercial paper (4)
Debt Instrument [Line Items]
Long-Term	191,000,000	[2]			0	[2]
Current	0	[1],[2]			0	[1],[2]
CERC Corp [Member]
Line of Credit Facility [Abstract]
Size of Facility	600,000,000				600,000,000
Percentage on limitation of debt to total capitalization under covenant (in hundredths)	65.00%
CERC Corp [Member] | Commercial paper (4)
Debt Instrument [Line Items]
Long-Term	341,000,000	[2]			118,000,000	[2]
Current	0	[1],[2]			0	[1],[2]
Bonds General Mortgage Due 2044 [Member] | CenterPoint Houston [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount							600,000,000
Debt Instrument, Interest Rate, Stated Percentage (in hundredths)							4.50%
Bonds Pollution Control Due2017 [Member] | CenterPoint Houston [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage (in hundredths)			4.25%	4.25%
Extinguishment of Debt, Amount			84,000,000	44,000,000
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed			100.00%	101.00%
Bonds Pollution Control Due2027 [Member] | CenterPoint Houston [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage (in hundredths)				5.60%
Debt Instrument, Repurchase Amount				56,000,000
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed				101.00%
Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Loans	0				0
Revolving Credit Facility [Member] | CenterPoint Houston [Member]
Line of Credit Facility [Abstract]
Loans	0				0
Revolving Credit Facility [Member] | Parent Company [Member]
Line of Credit Facility [Abstract]
Loans	0				0
Revolving Credit Facility [Member] | CERC Corp [Member]
Line of Credit Facility [Abstract]
Loans	0				0
Line of Credit [Member] | CenterPoint Houston [Member]
Line of Credit Facility [Abstract]
Percentage on limitation of debt to total capitalization under covenant (in hundredths)	65.00%
Line of Credit [Member] | Parent Company [Member]
Line of Credit Facility [Abstract]
Percentage on limitation of debt to total capitalization under covenant (in hundredths)	65.00%
Percentage on limitation of debt to total capitalization under covenant amended (in hundredths)	70.00%
System restoration costs threshold for increase in permitted debt to EBITDA covenant ratio	100,000,000
Consecutive Period for System Restoration Costs to Exceed $100 million (in months)	12
Line of Credit [Member] | CERC Corp [Member]
Line of Credit Facility [Abstract]
Percentage on limitation of debt to total capitalization under covenant (in hundredths)	65.00%
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | CenterPoint Houston [Member]
Line of Credit Facility [Abstract]
Debt Instrument, Basis Spread on Variable Rate	1.125%
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Parent Company [Member]
Line of Credit Facility [Abstract]
Debt Instrument, Basis Spread on Variable Rate	1.25%
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | CERC Corp [Member]
Line of Credit Facility [Abstract]
Debt Instrument, Basis Spread on Variable Rate	1.50%
Letter of Credit [Member]
Line of Credit Facility [Abstract]
Loans	10,000,000				10,000,000
Letter of Credit [Member] | CenterPoint Houston [Member]
Line of Credit Facility [Abstract]
Loans	4,000,000				4,000,000
Letter of Credit [Member] | Parent Company [Member]
Line of Credit Facility [Abstract]
Loans	6,000,000				6,000,000
Letter of Credit [Member] | CERC Corp [Member]
Line of Credit Facility [Abstract]
Loans	0				0
Commercial paper (4)
Line of Credit Facility [Abstract]
Loans	532,000,000				118,000,000
Commercial paper (4) | CenterPoint Houston [Member]
Line of Credit Facility [Abstract]
Loans	0				0
Commercial paper (4) | Parent Company [Member]
Line of Credit Facility [Abstract]
Loans	191,000,000				0
Commercial paper (4) | CERC Corp [Member]
Line of Credit Facility [Abstract]
Loans	$ 341,000,000				$ 118,000,000

[1] Includes amounts due or exchangeable within one year of the date noted.

[2] Classified as long-term debt because the termination date of the facility that backstops the commercial paper is more than one year from the date noted.

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Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended					0 Months Ended	3 Months Ended		0 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012	Jul. 31, 2012	Dec. 31, 2014		May 01, 2013	Dec. 31, 2011	May 30, 2014
Significant Accounting Policies [Line Items]
Investment in unconsolidated affiliates	$ 4,521,000,000		$ 4,518,000,000				4,521,000,000
Acquisitions, net of cash acquired	0		0		360,000,000
Step Acquisition, Equity Interest in Acquiree, Percentage	0		0		136,000,000
Amount of removal costs recognized as a component of depreciation expense recorded as a regulatory liability	1,206,000,000		1,152,000,000				1,206,000,000
Capitalized Interest Costs, Including Allowance for Funds Used During Construction	11,000,000		11,000,000		9,000,000
Provision for doubtful accounts	22,000,000		21,000,000		16,000,000
Inventory	379,000,000		285,000,000				379,000,000
Cash and cash equivalents	298,000,000		208,000,000		646,000,000		298,000,000			220,000,000
Inventory Write-down	8,000,000		4,000,000		4,000,000
Variable Interest Entity, Primary Beneficiary [Member]
Significant Accounting Policies [Line Items]
Cash and cash equivalents	290,000,000		207,000,000				290,000,000
Waskom Plus Gathering and Related Assets [Member]
Significant Accounting Policies [Line Items]
Acquisitions, net of cash acquired						273,000,000
Waskom Gas Processing Company [Member]
Significant Accounting Policies [Line Items]
Percentage of Ownership in Affiliate 2 Acquired						50.00%
Step Acquisition, Equity Interest in Acquiree, Percentage						136,000,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage						50.00%
Enable Midstream Partners [Member]
Significant Accounting Policies [Line Items]
Incentive Distribution Right, Maximum							50.00%
Enable Midstream Partners [Member] | OGE [Member]
Significant Accounting Policies [Line Items]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	26.30%
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	50.00%
Incentive Distribution Right							60.00%
Enable Midstream Partners [Member] | CERC Corp [Member]
Significant Accounting Policies [Line Items]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	55.40%
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	50.00%
Incentive Distribution Right							40.00%
Enable Midstream Partners [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Incentive Distribution, Distribution Per Unit							0.2875
Enable Midstream Partners [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Incentive Distribution, Distribution Per Unit							0.330625
Prepaid Expenses and Other Current Assets [Member]
Significant Accounting Policies [Line Items]
Restricted cash accounts	47,000,000		41,000,000				47,000,000
Materials And Supplies [Member]
Significant Accounting Policies [Line Items]
Inventory	168,000,000		140,000,000				168,000,000
Public Utilities, Inventory, Natural Gas [Member]
Significant Accounting Policies [Line Items]
Inventory	211,000,000		145,000,000				211,000,000
Other Income [Member]
Significant Accounting Policies [Line Items]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	14,000,000		8,000,000		6,000,000
Removal Costs [Member]
Significant Accounting Policies [Line Items]
Amount of removal costs recognized as a component of depreciation expense recorded as a regulatory liability	958,000,000		941,000,000				958,000,000
Enogex LLC [Member] | OGE ARCLIGHT [Member]
Significant Accounting Policies [Line Items]
Equity Interest Contributed, Percentage									100.00%
Southeast Supply Header LLC [Member]
Significant Accounting Policies [Line Items]
Equity Method Investment, Additional Contribution of Ownership Percentage									24.95%		24.95%
Investment in unconsolidated affiliates	1,000,000	[1]	199,000,000	[1]			1,000,000	[1]
Southeast Supply Header LLC [Member] | CERC Corp [Member]
Significant Accounting Policies [Line Items]
Equity Interest Contributed, Percentage									24.95%
Enable Midstream Partners [Member]
Significant Accounting Policies [Line Items]
Contributed Assets									5,800,000,000
Contributed Assets, Plant, Property and Equipments									4,700,000,000
Goodwill, Transfers									629,000,000
Contributed Liabilities									1,500,000,000
Debt repayment by affiliate									1,050,000,000
Debt of Affiliate									363,000,000
Investment in unconsolidated affiliates	4,520,000,000		4,319,000,000				4,520,000,000		4,300,000,000
Southeast Supply Header LLC [Member] | Enable Midstream Partners [Member]
Significant Accounting Policies [Line Items]
Contributed Assets, Equity Method Investment									197,000,000
Equity Method Investment, Additional Contribution of Ownership Percentage									24.95%

[1] On May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

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STATEMENTS OF CONSOLIDATED SHAREHOLDERS' EQUITY (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Stockholders' Equity [Abstract]
Preferred Stock, Shares Outstanding	0	0	0
Cumulative preferred stock par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Cumulative preferred stock shares authorized (in shares)	20,000,000	20,000,000	20,000,000
Common stock shares par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Common stock shares authorized (in shares)	1,000,000,000	1,000,000,000	1,000,000,000

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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Tax Carryforward [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 885	$ 781	$ 757
Current income tax expense (benefit):
Federal	(20)	91	0
State	14	23	12
Total current expense (benefit)	(6)	114	12
Deferred income tax expense (benefit):
Federal	273	370	280
State	7	(14)	48
Total deferred expense	280	356	328
Total income tax expense	274	470	340
Income tax reconciliation [Abstract]
Federal statutory income tax rate	35.00%	35.00%	35.00%
Expected federal income tax expense	310	273	265
Increase (decrease) in tax expense resulting from:
State income tax expense, net of federal income tax	16	21	39
Amortization of investment tax credit	0	0	(2)
Tax effect related to the formation of Enable	0	196	0
Decrease in settled and uncertain income tax positions	0	(9)	(33)
Goodwill impairment	0	0	88
Tax basis balance sheet adjustments	(29)	0	0
Other, net	(23)	(11)	(17)
Total	(36)	197	75
Total income tax expense	274	470	340
Effective tax rate (in hundredths)	31.00%	60.20%	44.90%
Increase (Decrease) in Deferred Income Taxes	32
Increase (Decrease) in Accrued Taxes Payable	5
Increase (Decrease) in Income Taxes	8
Deferred Tax Liabilities, Goodwill and Intangible Assets		225
Income tax expense (benefit) resulting from IRS settlement		(8)	33
Goodwill impairment	0	0	252
Other Tax Expense (Benefit)			88
Current:
Allowance for doubtful accounts	10	11
Deferred gas costs	0	7
Other	13	12
Total current deferred tax assets	23	30
Non-current:
Loss and credit carryforwards	69	51
Employee benefits	327	258
Other	89	76
Total non-current deferred tax assets before valuation allowance	485	385
Valuation allowance	(2)	(2)
Total non-current deferred tax assets, net of valuation allowance	483	383
Total deferred tax assets, net of valuation allowance	506	413
Current:
Unrealized gain on indexed debt securities	636	541
Unrealized gain on TW securities	65	97
Deferred gas costs	6	0
Total current deferred tax liabilities	707	638
Non-current:
Depreciation	2,201	1,908
Regulatory assets, net	1,228	1,308
Investment in unconsolidated affiliates	1,789	1,590
Other	21	119
Total non-current deferred tax liabilities	5,239	4,925
Total deferred tax liabilities	5,946	5,563
Accumulated deferred income taxes, net	5,440	5,150
Unrecognized tax expense, beginning of year	0	(23)
Balance, beginning of year			51
Tax Positions related to prior years:
Reductions	0	(1)	(75)
Tax Positions related to current year:
Settlements	0	24	1
Unrecognized tax expense, end of year	0	0	(23)
Income Tax Expense (Benefit) Related To Interest On Income Tax Positions	3	(3)	(7)
Interest receivable on income tax positions at the end of the year		5
Federal [Member]
Non-current:
Deferred Tax Assets, Capital Loss Carryforwards	9
Expiration date of state capital loss carryforwards	Dec. 31, 2017
State capital loss carryforwards, valuation allowance net of federal tax	2
Federal [Member] | General Business Tax Credit Carryforward [Member]
Non-current:
Tax carryforward	4
State and Local Jurisdiction [Member]
Non-current:
Net operating loss carryforwards	725
Deferred Tax Assets, Capital Loss Carryforwards	244
Enable Midstream Partners [Member]
Deferred income tax expense (benefit):
Total deferred expense		$ (29)
Year From [Member] | State and Local Jurisdiction [Member]
Non-current:
Net operating loss carryforwards expiration dates	Dec. 31, 2015
Year To [Member] | State and Local Jurisdiction [Member]
Non-current:
Net operating loss carryforwards expiration dates	Dec. 31, 2034

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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Basic and Diluted Earnings Per Share

The following table reconciles numerators and denominators of CenterPoint Energy’s basic and diluted earnings per share calculations:

	For the Year Ended December 31,
	2014		2013		2012
	(in millions, except per share and share amounts)
Net income	$	611	$	311	$	417
Basic weighted average shares outstanding	429,634,000		428,466,000		427,189,000
Plus: Incremental shares from assumed conversions:
Stock options	—		41,000		152,000
Restricted stock	2,034,000		2,423,000		2,453,000
Diluted weighted average shares	431,668,000		430,930,000		429,794,000
Basic earnings per share	$	1.42	$	0.73	$	0.98
Diluted earnings per share	$	1.42	$	0.72	$	0.97

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Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2014

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts Disclosure

CENTERPOINT ENERGY, INC.

SCHEDULE II —VALUATION AND QUALIFYING ACCOUNTS

For the Three Years Ended December 31, 2014

Column A	Column B		Column C						Column D		Column E
			Additions
	Balance at Beginning of Period		Charged to Income			Charged to Other Accounts			Deductions From Reserves (1)		Balance at End of Period
Description	(in millions)
Year Ended December 31, 2014
Accumulated provisions:
Uncollectible accounts receivable	$	28	$	22		$	2		$	26	$	26
Deferred tax asset valuation allowance	2		—			—			—		2
Year Ended December 31, 2013
Accumulated provisions:
Uncollectible accounts receivable	$	25	$	21		$	1		$	19	$	28
Deferred tax asset valuation allowance	2		—			—			—		2
Year Ended December 31, 2012
Accumulated provisions:
Uncollectible accounts receivable	$	25	$	16		$	1		$	17	$	25
Deferred tax asset valuation allowance	4		(1		)	(1		)	—		2

(1) Deductions from reserves represent losses or expenses for which the respective reserves were created. In the case of the uncollectible accounts reserve, such deductions are net of recoveries of amounts previously written off.

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Schedule I: Financial Information of Centerpoint Energy, Inc. (Parent Company)

12 Months Ended

Dec. 31, 2014

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Schedule I - Condensed Financial Information of Centerpoint Energy, Inc. (Parent Company)

CENTERPOINT ENERGY, INC.

SCHEDULE I — CONDENSED FINANCIAL INFORMATION OF

CENTERPOINT ENERGY, INC. (PARENT COMPANY)

STATEMENTS OF INCOME

	For the Year Ended December 31,
	2014			2013			2012
	(in millions)
Expenses:
Operation and Maintenance Expenses	$	(22	)	$	(13	)	$	(20	)
Total	(22		)	(13		)	(20		)
Other Income (Expense):
Interest Income from Subsidiaries	—			8			10
Other Income (Expense)	(1		)	(5		)	6
Loss on Indexed Debt Securities	(86		)	(193		)	(71		)
Interest Expense to Subsidiaries	—			(24		)	(25		)
Interest Expense	(103		)	(104		)	(112		)
Total	(190		)	(318		)	(192		)
Loss Before Income Taxes, Equity in Subsidiaries	(212		)	(331		)	(212		)
Income Tax Benefit	115			137			87
Loss Before Equity in Subsidiaries	(97		)	(194		)	(125		)
Equity Income of Subsidiaries	708			505			542
Net Income	$	611		$	311		$	417

See Notes to Condensed Financial Information (Parent Company) and

CenterPoint Energy, Inc. and Subsidiaries Notes to Consolidated Financial Statements in Part II, Item 8

CENTERPOINT ENERGY, INC.

SCHEDULE I — CONDENSED FINANCIAL INFORMATION OF

CENTERPOINT ENERGY, INC. (PARENT COMPANY)

STATEMENTS OF COMPREHENSIVE INCOME

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Net income	$	611	$	311	$	417
Other comprehensive income (loss):
Adjustment to pension and other postretirement plans (net of tax of $5,$25 and $2)	3		44		(2		)
Reclassification of deferred loss from cash flow hedges realized in net income (net of tax)	1		1		—
Other comprehensive income (loss)	4		45		(2		)
Comprehensive income	$	615	$	356	$	415

See Notes to Condensed Financial Information (Parent Company) and

CenterPoint Energy, Inc. and Subsidiaries Notes to Consolidated Financial Statements in Part II, Item 8

CENTERPOINT ENERGY, INC.

SCHEDULE I — CONDENSED FINANCIAL INFORMATION OF

CENTERPOINT ENERGY, INC. (PARENT COMPANY)

BALANCE SHEETS

	December 31,
	2014			2013
	(in millions)
ASSETS
Current Assets:
Cash and cash equivalents	$	—		$	—
Notes receivable — subsidiaries	227			88
Accounts receivable — subsidiaries	230			116
Other assets	87			21
Total current assets	544			225
Other Assets:
Investment in subsidiaries	6,529			6,142
Other assets	811			649
Total other assets	7,340			6,791
Total Assets	$	7,884		$	7,016
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current Liabilities:
Notes payable — subsidiaries	$	142		$	11
Indexed debt	152			143
Current portion of other long-term debt	269			—
Indexed debt securities derivative	541			455
Accounts payable:
Subsidiaries	80			35
Other	2			5
Taxes accrued	575			517
Interest accrued	13			13
Other	22			—
Total current liabilities	1,796			1,179
Other Liabilities:
Accumulated deferred tax liabilities	240			232
Benefit obligations	441			340
Other	1			—
Total non-current liabilities	682			572
Long-Term Debt	858			936
Shareholders’ Equity:
Common stock	4			4
Additional paid-in capital	4,169			4,157
Retained earnings	461			258
Accumulated other comprehensive loss	(86		)	(90		)
Total shareholders’ equity	4,548			4,329
Total Liabilities and Shareholders’ Equity	$	7,884		$	7,016

See Notes to Condensed Financial Information (Parent Company) and

CenterPoint Energy, Inc. and Subsidiaries Notes to Consolidated Financial Statements in Part II, Item 8

CENTERPOINT ENERGY, INC.

SCHEDULE I — CONDENSED FINANCIAL INFORMATION OF

CENTERPOINT ENERGY, INC. (PARENT COMPANY)

STATEMENTS OF CASH FLOWS

	For the Year Ended December 31,
	2014			2013			2012
	(in millions)
Operating Activities:
Net income	$	611		$	311		$	417
Non-cash items included in net income:
Equity income of subsidiaries	(708		)	(505		)	(542		)
Deferred income tax expense	86			6			113
Amortization of debt issuance costs	4			4			4
Loss on indexed debt securities	86			193			71
Changes in working capital:
Accounts receivable/(payable) from subsidiaries, net	(7		)	47			39
Accounts payable	(3		)	5			—
Other current assets	—			—			26
Other current liabilities	(83		)	42			(63		)
Common stock dividends received from subsidiaries	315			766			1,700
Other	(76		)	(70		)	(72		)
Net cash provided by operating activities	225			799			1,693
Investing Activities:
Decrease (increase) in notes receivable from subsidiaries	(139		)	868			(398		)
Net cash provided by (used in) investing activities	(139		)	868			(398		)
Financing Activities:
Proceeds from commercial paper, net	191			—			—
Payments on long-term debt	—			(151		)	(375		)
Debt issuance costs	(1		)	(2		)	—
Common stock dividends paid	(408		)	(355		)	(346		)
Proceeds from issuance of common stock, net	1			4			4
Increase (decrease) in notes payable to subsidiaries	131			(1,173		)	(578		)
Redemption of indexed debt securities	—			(8		)	—
Other	—			18			—
Net cash used in financing activities	(86		)	(1,667		)	(1,295		)
Net Decrease in Cash and Cash Equivalents	—			—			—
Cash and Cash Equivalents at Beginning of Year	—			—			—
Cash and Cash Equivalents at End of Year	$	—		$	—		$	—

See Notes to Condensed Financial Information (Parent Company) and

CenterPoint Energy, Inc. and Subsidiaries Notes to Consolidated Financial Statements in Part II, Item 8

CENTERPOINT ENERGY, INC.

SCHEDULE I — NOTES TO CONDENSED FINANCIAL INFORMATION (PARENT COMPANY)

(1) Background. The condensed parent company financial statements and notes of CenterPoint Energy, Inc. (CenterPoint Energy) should be read in conjunction with the consolidated financial statements and notes of CenterPoint Energy, Inc. and subsidiaries appearing in the Annual Report on Form 10-K. Credit facilities at CenterPoint Energy Houston Electric, LLC (CenterPoint Houston) and CenterPoint Energy Resources Corp., indirect wholly owned subsidiaries of CenterPoint Energy, limit debt, excluding transition and system restoration bonds, as a percentage of their consolidated capitalization to 65%. These covenants could restrict the ability of these subsidiaries to distribute dividends to CenterPoint Energy.

(2) New Accounting Pronouncements. In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (ASU 2014-08), which significantly changes the existing accounting guidance on discontinued operations. Under ASU 2014-08, only those disposals of components of an entity that represent a strategic shift that has (or will have) a major effect on an entity’s operations and financial results should be reported as a discontinued operation.  ASU 2014-08 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2014.  ASU 2014-08 should be applied to components classified as held for sale after its effective date. Early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The adoption is expected to reduce the number of disposals that meet the definition of a discontinued operation.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (ASU 2014-09), which supersedes most current revenue recognition guidance. ASU 2014-09 provides a comprehensive new revenue recognition model that requires revenue to be recognized in a manner that depicts the transfer of goods or services to a customer at an amount that reflects the consideration expected to be received in exchange for those goods or services. ASU 2014-09 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. Early adoption is not permitted, and entities have the option of using either a full retrospective or a modified retrospective adoption approach. Accordingly, CenterPoint Energy will adopt ASU 2014-09 on January 1, 2017, and is currently evaluating the impact that this standard will have on its financial position, results of operations, cash flows and disclosures.

In November 2014, the FASB issued ASU No. 2014-16, Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity (ASU 2014-16).  ASU 2014-16 clarifies how current guidance should be interpreted in evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. Specifically, the amendments clarify that an entity should consider all relevant terms and features, including the embedded derivative feature being evaluated for bifurcation, in evaluating the nature of a host contract. ASU 2014-16 is effective for fiscal years and interim periods beginning after December 15, 2015. CenterPoint Energy is currently assessing the impact, if any, that this standard will have on its financial position, results of operations, cash flows and disclosures.

In January 2015, the FASB issued ASU No. 2015-01, Income Statement-Extraordinary and Unusual Items (Subtopic 225-20)-Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items (ASU 2015-01), which eliminates the concept of extraordinary items. ASU 2015-01 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015, and may be applied either prospectively or retrospectively. CenterPoint Energy will adopt ASU 2015-01 on January 1, 2016 and does not anticipate the adoption to have a material impact on its consolidated financial statements.

Management believes that other recently issued standards, which are not yet effective, will not have a material impact on CenterPoint Energy’s consolidated financial position, results of operations or cash flows upon adoption.

(3) Long-term Debt. As of December 31, 2014 and 2013, CenterPoint Energy had no borrowings and approximately $6 million and $6 million, respectively, of outstanding letters of credit under its $1.2 billion credit facility. There was $191 million of commercial paper outstanding that was backstopped by CenterPoint Energy’s $1.2 billion credit facility as of December 31, 2014. CenterPoint Energy was in compliance with all financial debt covenants as of December 31, 2014.

CenterPoint Energy’s $1.2 billion revolving credit facility, which is scheduled to terminate on September 9, 2019, can be drawn at the London Interbank Offered Rate (LIBOR) plus 1.25% based on CenterPoint Energy’s current credit ratings. The revolving credit facility contains a financial covenant which limits CenterPoint Energy’s consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of CenterPoint Energy’s consolidated capitalization. The financial covenant limit will temporarily increase from 65% to 70% if CenterPoint Houston experiences damage from a natural disaster in its service territory and CenterPoint Energy certifies to the administrative agent that CenterPoint Houston has incurred system restoration costs reasonably likely to exceed $100 million in a consecutive twelve-month period, all or part of which CenterPoint Houston intends to seek to recover through securitization financing. Such temporary increase in the financial covenant would be in effect from the date CenterPoint Energy delivers its certification until the earliest to occur of (i) the completion of the securitization financing, (ii) the first anniversary of CenterPoint Energy’s certification or (iii) the revocation of such certification.

CenterPoint Energy’s maturities of long-term debt, excluding the indexed debt securities obligation, are $269 million in 2015, $250 million in 2017, $350 million in 2018 and $191 million in 2019.  There are no maturities of long-term debt in 2016.

(4) Guarantees. CenterPoint Energy has provided guarantees (CenterPoint Midstream Guarantees) with respect to the performance of certain obligations of Enable under long-term gas gathering and treating agreements with an indirect wholly owned subsidiary of Encana Corporation and an indirect wholly owned subsidiary of Royal Dutch Shell plc. As of December 31, 2014, CenterPoint Energy had guaranteed Enable’s obligations up to an aggregate amount of $100 million under these agreements. Under the terms of the omnibus agreement entered into in connection with the closing of the formation of Enable, Enable and CenterPoint Energy have agreed to use commercially reasonable efforts and cooperate with each other to terminate the CenterPoint Midstream Guarantees and to release CenterPoint Energy from such guarantees by causing Enable or one of its subsidiaries to enter into substitute guarantees or to assume the CenterPoint Midstream Guarantees as applicable.

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Fair Value Measurements (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Fair Value, assets and liabilities measured on recurring basis, financial statement captions
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount	0
ASSETS
Derivative Asset, Fair Value, Gross Liability	(18,000,000)	[1]	(9,000,000)	[2]
Total assets	1,117,000,000		865,000,000
Liabilities
Derivative Liability, Fair Value, Gross Asset	(82,000,000)	[1]	(9,000,000)	[2]
Total liabilities	561,000,000		476,000,000
Cash collateral posted with counterparties	64,000,000		1,000,000
Derivative Asset, Fair Value, Gross Asset	149,000,000		43,000,000
Fair value measurement using significant unobservable input (level 3) reconciliation [Roll Forward]
Beginning balance	3,000,000	[3]	2,000,000	[3]	6,000,000
Total gains	14,000,000		3,000,000		3,000,000
Total settlements	1,000,000		(3,000,000)		(6,000,000)
Transfers out of Level 3	0		0		(1,000,000)
Transfers into Level 3	(1,000,000)		1,000,000		0
Ending balance (1)	17,000,000	[3]	3,000,000	[3]	2,000,000	[3]
The amount of total gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at the reporting date	16,000,000		2,000,000		1,000,000
Fair value [Member]
Fair value measurement using significant unobservable input (level 3) reconciliation [Roll Forward]
Notes receivable - affiliated companies	362,000,000		363,000,000
Long-term debt	9,427,000,000		8,670,000,000
Carrying amount [Member]
Fair value measurement using significant unobservable input (level 3) reconciliation [Roll Forward]
Notes receivable - affiliated companies	363,000,000		363,000,000
Long-term debt	8,652,000,000		8,171,000,000
Fair Value, Inputs, Level 1 [Member]
ASSETS
Total assets	993,000,000		836,000,000
Liabilities
Total liabilities	22,000,000		1,000,000
Fair Value, Inputs, Level 2 [Member]
ASSETS
Total assets	122,000,000		33,000,000
Liabilities
Total liabilities	618,000,000		482,000,000
Fair Value, Inputs, Level 3 [Member]
ASSETS
Total assets	20,000,000		5,000,000
Liabilities
Total liabilities	3,000,000		2,000,000
Fair Value, Measurements, Recurring [Member]
ASSETS
Corporate equities	932,000,000		770,000,000
Investments, including money market funds	54,000,000		61,000,000
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
ASSETS
Corporate equities	932,000,000		770,000,000
Investments, including money market funds	54,000,000		61,000,000
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
ASSETS
Corporate equities	0		0
Investments, including money market funds	0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
ASSETS
Corporate equities	0		0
Investments, including money market funds	0		0
Energy Related Derivative [Member] | Fair Value, Measurements, Recurring [Member]
ASSETS
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(18,000,000)	[1],[4]	(9,000,000)	[2],[5]
Natural gas derivatives (2)	131,000,000	[4]	34,000,000	[5]
Liabilities
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	(82,000,000)	[1],[4]	(9,000,000)	[2]
Natural gas derivatives (2)	20,000,000	[4]	21,000,000
Energy Related Derivative [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	7,000,000	[4]	5,000,000	[5]
Liabilities
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	22,000,000	[4]	1,000,000
Energy Related Derivative [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	122,000,000	[4]	33,000,000	[5]
Liabilities
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	77,000,000	[4]	27,000,000
Energy Related Derivative [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	20,000,000	[4]	5,000,000	[5]
Liabilities
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	3,000,000	[4]	2,000,000
IDS Derivative [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	0	[1]	0	[2]
Natural gas derivatives (2)	541,000,000		455,000,000
IDS Derivative [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Liabilities
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0
IDS Derivative [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	541,000,000		455,000,000
IDS Derivative [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Liabilities
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0
Forward Contracts [Member] | Enable Midstream Partners [Member] | Energy Related Derivative [Member]
Liabilities
Derivative Asset, Fair Value, Gross Asset			$ 1,000,000
Minimum [Member] | Forward Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, assets and liabilities measured on recurring basis, financial statement captions
Illiquid forward price low range	1.60
Minimum [Member] | Options Held [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, assets and liabilities measured on recurring basis, financial statement captions
Option volatilities low range	0.00%
Maximum [Member] | Forward Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, assets and liabilities measured on recurring basis, financial statement captions
Illiquid forward price low range	4.23
Maximum [Member] | Options Held [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, assets and liabilities measured on recurring basis, financial statement captions
Option volatilities low range	88.00%

[1] Amounts represent the impact of legally enforceable master netting arrangements that allow CenterPoint Energy to settle positive and negative positions and also include cash collateral of $64 million posted with the same counterparties.

[2] Amounts represent the impact of legally enforceable master netting arrangements that allow CenterPoint Energy to settle positive and negative positions and also include cash collateral of less than $1 million posted with the same counterparties.

[3] During 2014, 2013 and 2012, CenterPoint Energy did not have significant Level 3 purchases or sales.

[4] Natural gas derivatives include no material amounts related to physical forward transactions with Enable.

[5] The (Level 2) Natural gas derivative assets of $33 million include $1 million related to physical forwards purchased from Enable.

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Unaudited Quarterly Information (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data

Summarized quarterly financial data is as follows:

	Year Ended December 31, 2014
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter (3)
	(in millions, except per share amounts)
Revenues	$	3,163	$	1,884	$	1,807	$	2,372
Operating income	295		186		233		221
Net income	185		107		143		176
Basic earnings per share(1)	$	0.43	$	0.25	$	0.33	$	0.41
Diluted earnings per share(1)	$	0.43	$	0.25	$	0.33	$	0.41

	Year Ended December 31, 2013
	First Quarter		Second Quarter (2)			Third Quarter		Fourth Quarter
	(in millions, except per share amounts)
Revenues	$	2,388	$	1,894		$	1,640	$	2,184
Operating income	332		223			244		211
Net income (loss)	$	147	$	(100	)	$	151	$	113
Basic earnings (loss) per share(1)	$	0.34	$	(0.23	)	$	0.35	$	0.26
Diluted earnings (loss) per share(1)	$	0.34	$	(0.23	)	$	0.35	$	0.26

(1) Quarterly earnings per common share are based on the weighted average number of shares outstanding during the quarter, and the sum of the quarters may not equal annual earnings per common share.

(2) Effective May 1, 2013, CenterPoint Energy contributed CenterPoint Midstream to Enable.  See Note 2(b) and Note 9 for further discussion on the formation of Enable and CenterPoint Energy’s investment in Enable, respectively.

(3) CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review. 

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Principles of Consolidation

Principles of Consolidation

The accounts of CenterPoint Energy and its wholly owned and majority owned subsidiaries are included in the consolidated financial statements. All intercompany transactions and balances are eliminated in consolidation. CenterPoint Energy generally uses the equity method of accounting for investments in entities in which CenterPoint Energy has an ownership interest between 20% and 50% and exercises significant influence. CenterPoint Energy also uses the equity method for investments in which it has ownership percentages greater than 50%, when it exercises significant influence, does not have control and is not considered the primary beneficiary, if applicable.

On March 14, 2013, CenterPoint Energy entered into a Master Formation Agreement (MFA) with OGE Energy Corp. (OGE) and affiliates of ArcLight Capital Partners, LLC (ArcLight), pursuant to which CenterPoint Energy, OGE and ArcLight agreed to form Enable as a private limited partnership. On May 1, 2013, the parties closed on the formation of Enable. In connection with the closing (i) CERC Corp. converted its direct wholly owned subsidiary, CenterPoint Energy Field Services, LLC, a Delaware limited liability company (CEFS), into a Delaware limited partnership that became Enable, (ii) CERC Corp. contributed to Enable its equity interests in each of CenterPoint Energy Gas Transmission Company, LLC, which has been subsequently renamed Enable Gas Transmission, LLC (EGT), CenterPoint Energy - Mississippi River Transmission, LLC, which has been subsequently renamed Enable Mississippi River Transmission, LLC (MRT), certain of its other midstream subsidiaries (Other CNP Midstream Subsidiaries), and a 24.95% interest in Southeast Supply Header, LLC (SESH and, collectively with CEFS, EGT, MRT and Other CNP Midstream Subsidiaries, CenterPoint Midstream), and (iii) OGE and ArcLight indirectly contributed 100% of the equity interests in Enogex LLC, which has been subsequently renamed Enable Oklahoma Intrastate Transmission, LLC (Enogex), to Enable.

The formation of Enable by CenterPoint Energy was considered a contribution of in-substance real estate to a limited partnership as the businesses are composed of, and reliant upon, substantial real estate assets and integral equipment. Real estate assets and integral equipment primarily include gas transmission pipelines, compressor station equipment, rights of way, storage and processing assets and long-term customer contracts. Accordingly, CenterPoint Energy did not recognize a gain or loss upon contribution and recorded its investment in Enable using the equity method of accounting based on the historical cost of the contributed assets and liabilities as of May 1, 2013 (Closing Date). Approximately $5.8 billion of assets (which includes $4.7 billion in property, plant and equipment, net, $629 million in goodwill and $197 million for the 24.95% investment in SESH) and $1.5 billion of liabilities (which includes a term loan and the indebtedness owed to CERC of $1.05 billion and $363 million, respectively) were contributed by CERC Corp. CenterPoint Energy has the ability to significantly influence the operating and financial policies of, but not solely control, Enable and, accordingly, recorded an equity method investment, at the historical costs of net assets contributed, of $4.3 billion in Enable on the Closing Date. Pursuant to the MFA, CenterPoint Energy retained certain assets and liabilities historically held by CenterPoint Midstream such as balances relating to federal income taxes and benefit plan obligations.

Under the equity method, CenterPoint Energy adjusts its investment in Enable each period for contributions made, distributions received, CenterPoint Energy’s share of Enable’s comprehensive income and accretion of basis differences, as appropriate. CenterPoint Energy evaluates its equity method investments for impairment when events or changes in circumstances indicate there is a loss in value of the investment that is other than a temporary decline.

CenterPoint Energy’s investment in Enable is considered to be a variable interest entity (VIE) because the power to direct the activities that most significantly impact Enable’s economic performance does not reside with the holders of equity investment at risk. However, CenterPoint Energy is not considered the primary beneficiary of Enable since it does not have the power to direct the activities of Enable that are considered most significant to the economic performance of Enable.

As of December 31, 2014, CERC Corp. and OGE held approximately 55.4% and 26.3%, respectively, of the limited partner interests in Enable. Enable is controlled jointly by CERC Corp. and OGE, and each own 50% of the management rights in the general partner of Enable.

As of December 31, 2014, CERC Corp. and OGE also own a 40% and 60% interest, respectively, in the incentive distribution rights held by the general partner of Enable. Enable is expected to pay a minimum quarterly distribution of $0.2875 per unit on its outstanding units to the extent it has sufficient cash from operations after establishment of cash reserves and payment of fees and expenses, including payments to its general partner and its affiliates, within 45 days after the end of each quarter. If cash distributions to Enable’s unitholders exceed $0.330625 per unit in any quarter, the general partner will receive increasing percentages or incentive distributions rights, up to 50%, of the cash Enable distributes in excess of that amount. In certain circumstances the general partner of Enable will have the right to reset the minimum quarterly distribution and the target distribution levels at which the incentive distributions receive increasing percentages to higher levels based on Enable’s cash distributions at the time of the exercise of this reset election.

Prior to July 2012, CenterPoint Energy owned a 50% interest in Waskom Gas Processing Company (Waskom), a Texas general partnership, which owns and operates a natural gas processing plant and natural gas gathering assets. On July 31, 2012, CenterPoint Energy purchased the 50% interest that it did not already own in Waskom, as well as other gathering and related assets from a third-party for approximately $273 million. The purchase of the 50% interest in Waskom was determined to be a business combination achieved in stages, and as such CenterPoint Energy recorded a pre-tax gain of approximately $136 million on July 31, 2012, which is the result of remeasuring its original 50% interest in Waskom to fair value.

Other investments, excluding marketable securities, are carried at cost.

As of December 31, 2014, CenterPoint Energy had VIEs consisting of transition and system restoration bond companies, which it consolidates. The consolidated VIEs are wholly owned bankruptcy remote special purpose entities that were formed specifically for the purpose of securitizing transition and system restoration related property. Creditors of CenterPoint Energy have no recourse to any assets or revenues of the transition and system restoration bond companies. The bonds issued by these VIEs are payable only from and secured by transition and system restoration property and the bondholders have no recourse to the general credit of CenterPoint Energy.

Revenues

Revenues

CenterPoint Energy records revenue for electricity delivery and natural gas sales and services under the accrual method and these revenues are recognized upon delivery to customers. Electricity deliveries not billed by month-end are accrued based on actual advanced metering system data, daily supply volumes and applicable rates. Natural gas sales not billed by month-end are accrued based upon estimated purchased gas volumes, estimated lost and unaccounted for gas and currently effective tariff rates.

Long-lived Assets

Long-lived Assets and Intangibles

CenterPoint Energy records property, plant and equipment at historical cost. CenterPoint Energy expenses repair and maintenance costs as incurred.

CenterPoint Energy periodically evaluates long-lived assets, including property, plant and equipment, and specifically identifiable intangibles, when events or changes in circumstances indicate that the carrying value of these assets may not be recoverable. The determination of whether an impairment has occurred is based on an estimate of undiscounted cash flows attributable to the assets compared to the carrying value of the assets.

Regulatory Assets and Liabilities

Regulatory Assets and Liabilities

CenterPoint Energy applies the guidance for accounting for regulated operations to the Electric Transmission & Distribution business segment and the Natural Gas Distribution business segment. CenterPoint Energy’s rate-regulated subsidiaries may collect revenues subject to refund pending final determination in rate proceedings. In connection with such revenues, estimated rate refund liabilities are recorded which reflect management’s current judgment of the ultimate outcomes of the proceedings.

CenterPoint Energy’s rate-regulated businesses recognize removal costs as a component of depreciation expense in accordance with regulatory treatment. As of December 31, 2014 and 2013, these removal costs of $958 million and $941 million, respectively, are classified as regulatory liabilities in CenterPoint Energy’s Consolidated Balance Sheets. In addition, a portion of the amount of removal costs that relate to asset retirement obligations has been reclassified from a regulatory liability to an asset retirement liability in accordance with accounting guidance for asset retirement obligations.

Depreciation and Amortization Expense

Depreciation and Amortization Expense

Depreciation and amortization is computed using the straight-line method based on economic lives or regulatory-mandated recovery periods. Amortization expense includes amortization of regulatory assets and other intangibles.

Capitalization of Interest and Allowance for Funds Used During Construction

Capitalization of Interest and Allowance for Funds Used During Construction

Interest and allowance for funds used during construction (AFUDC) are capitalized as a component of projects under construction and are amortized over the assets’ estimated useful lives once the assets are placed in service. AFUDC represents the composite interest cost of borrowed funds and a reasonable return on the equity funds used for construction for subsidiaries that apply the guidance for accounting for regulated operations. During 2014, 2013 and 2012, CenterPoint Energy capitalized interest and AFUDC of $11 million, $11 million and $9 million, respectively. During 2014, 2013 and 2012, CenterPoint Energy recorded AFUDC equity of $14 million, $8 million and $6 million, respectively, which is included in Other Income in its Statements of Consolidated Income.

Income Tax

Income Taxes

CenterPoint Energy uses the asset and liability method of accounting for deferred income taxes. Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. A valuation allowance is established against deferred tax assets for which management believes realization is not considered to be more likely than not. CenterPoint Energy recognizes interest and penalties as a component of income tax expense.

Accounts Receivable and Allowance for Doubtful Accounts

Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are recorded at the invoiced amount and do not bear interest. It is the policy of management to review the outstanding accounts receivable monthly, as well as the bad debt write-offs experienced in the past, and establish an allowance for doubtful accounts. Account balances are charged off against the allowance when management determines it is probable the receivable will not be recovered. The provision for doubtful accounts in CenterPoint Energy’s Statements of Consolidated Income for 2014, 2013 and 2012 was $22 million, $21 million and $16 million, respectively.

Inventory

Inventory

Inventory consists principally of materials and supplies and natural gas. Materials and supplies are valued at the lower of average cost or market.  Materials and supplies are recorded to inventory when purchased and subsequently charged to expense or capitalized to plant when installed. Natural gas inventories of CenterPoint Energy’s Energy Services business segment are valued at the lower of average cost or market. Natural gas inventories of CenterPoint Energy’s Natural Gas Distribution business segment are primarily valued at weighted average cost. During 2014, 2013 and 2012, CenterPoint Energy recorded $8 million, $4 million and $4 million, respectively, in write-downs of natural gas inventory to the lower of average cost or market.

Derivative Instruments

Derivative Instruments

CenterPoint Energy is exposed to various market risks. These risks arise from transactions entered into in the normal course of business.  CenterPoint Energy utilizes derivative instruments such as physical forward contracts, swaps and options to mitigate the impact of changes in commodity prices and weather on its operating results and cash flows. Such derivatives are recognized in CenterPoint Energy’s Consolidated Balance Sheets at their fair value unless CenterPoint Energy elects the normal purchase and sales exemption for qualified physical transactions. A derivative may be designated as a normal purchase or normal sale if the intent is to physically receive or deliver the product for use or sale in the normal course of business.

CenterPoint Energy has a Risk Oversight Committee composed of corporate and business segment officers that oversees all commodity price, weather and credit risk activities, including CenterPoint Energy’s marketing, risk management services and hedging activities. The committee’s duties are to establish CenterPoint Energy’s commodity risk policies, allocate board-approved commercial risk limits, approve the use of new products and commodities, monitor positions and ensure compliance with CenterPoint Energy’s risk management policies and procedures and limits established by CenterPoint Energy’s board of directors.

CenterPoint Energy’s policies prohibit the use of leveraged financial instruments. A leveraged financial instrument, for this purpose, is a transaction involving a derivative whose financial impact will be based on an amount other than the notional amount or volume of the instrument.

Investments in Other Debt and Equity Securities

Investments in Other Debt and Equity Securities

CenterPoint Energy reports securities classified as trading at estimated fair value in its Consolidated Balance Sheets, and any unrealized holding gains and losses are recorded as other income (expense) in its Statements of Consolidated Income.

Environmental Costs

Environmental Costs

CenterPoint Energy expenses or capitalizes environmental expenditures, as appropriate, depending on their future economic benefit. CenterPoint Energy expenses amounts that relate to an existing condition caused by past operations that do not have future economic benefit. CenterPoint Energy records undiscounted liabilities related to these future costs when environmental assessments and/or remediation activities are probable and the costs can be reasonably estimated.

Statement of Consolidated Cash Flows

Statements of Consolidated Cash Flows

For purposes of reporting cash flows, CenterPoint Energy considers cash equivalents to be short-term, highly-liquid investments with maturities of three months or less from the date of purchase. In connection with the issuance of transition bonds and system restoration bonds, CenterPoint Energy was required to establish restricted cash accounts to collateralize the bonds that were issued in these financing transactions. These restricted cash accounts are not available for withdrawal until the maturity of the bonds and are not included in cash and cash equivalents. These restricted cash accounts of $47 million and $41 million at December 31, 2014 and 2013, respectively, are included in other current assets in CenterPoint Energy’s Consolidated Balance Sheets. Cash and cash equivalents included $290 million and $207 million at December 31, 2014 and 2013, respectively, that was held by CenterPoint Energy’s transition and system restoration bond subsidiaries solely to support servicing the transition and system restoration bonds.

CenterPoint Energy considers distributions received from equity method investments which do not exceed cumulative equity in earnings subsequent to the date of investment to be a return on investment and classifies these distributions as operating activities in the Statements of Consolidated Cash Flows. CenterPoint Energy considers distributions received from equity method investments in excess of cumulative equity in earnings subsequent to the date of investment to be a return of investment and classifies these distributions as investing activities in the Statements of Consolidated Cash Flows.

New Accounting Pronouncements, Policy [Policy Text Block]

New Accounting Pronouncements

In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (ASU 2014-08), which significantly changes the existing accounting guidance on discontinued operations. Under ASU 2014-08, only those disposals of components of an entity that represent a strategic shift that has (or will have) a major effect on an entity’s operations and financial results should be reported as a discontinued operation.  ASU 2014-08 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2014.  ASU 2014-08 should be applied to components classified as held for sale after its effective date. Early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The adoption is expected to reduce the number of disposals that meet the definition of a discontinued operation.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (ASU 2014-09), which supersedes most current revenue recognition guidance. ASU 2014-09 provides a comprehensive new revenue recognition model that requires revenue to be recognized in a manner that depicts the transfer of goods or services to a customer at an amount that reflects the consideration expected to be received in exchange for those goods or services. ASU 2014-09 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. Early adoption is not permitted, and entities have the option of using either a full retrospective or a modified retrospective adoption approach. Accordingly, CenterPoint Energy will adopt ASU 2014-09 on January 1, 2017, and is currently evaluating the impact that this standard will have on its financial position, results of operations, cash flows and disclosures.

In November 2014, the FASB issued ASU No. 2014-16, Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity (ASU 2014-16).  ASU 2014-16 clarifies how current guidance should be interpreted in evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. Specifically, the amendments clarify that an entity should consider all relevant terms and features, including the embedded derivative feature being evaluated for bifurcation, in evaluating the nature of a host contract. ASU 2014-16 is effective for fiscal years and interim periods beginning after December 15, 2015. CenterPoint Energy is currently assessing the impact, if any, that this standard will have on its financial position, results of operations, cash flows and disclosures.

In January 2015, the FASB issued ASU No. 2015-01, Income Statement-Extraordinary and Unusual Items (Subtopic 225-20)-Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items (ASU 2015-01), which eliminates the concept of extraordinary items. ASU 2015-01 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015, and may be applied either prospectively or retrospectively. CenterPoint Energy will adopt ASU 2015-01 on January 1, 2016 and does not anticipate the adoption to have a material impact on its consolidated financial statements.

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Schedule of Inventory

	December 31,
	2014		2013
Materials and supplies	$	168	$	140
Natural gas	211		145
Total inventory	$	379	$	285

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STATEMENTS OF CONSOLIDATED SHAREHOLDERS' EQUITY (USD $) In Millions, unless otherwise specified	Total	Preference Stock [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Adjustment to pension and postretirement plans [Member]	Net deferred loss from cash flow hedges [Member]	Total accumulated other comprehensive loss, end of year [Member]
Balance at Dec. 31, 2011				$ 4	$ 4,120	$ 231
Shares, Outstanding at Dec. 31, 2011				426
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance related to benefit and investment plans				0	10
Issuance related to benefit and investment plans (in shares)				2
Net income	417					417
Common stock dividends						(346)
Balance at Dec. 31, 2012	4,301	0	0	4	4,130	302	(132)	(3)	(135)
Shares, Outstanding at Dec. 31, 2012		0	0	428
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance related to benefit and investment plans				0	27
Issuance related to benefit and investment plans (in shares)				1
Net income	311					311
Common stock dividends						(355)
Balance at Dec. 31, 2013	4,329	0	0	4	4,157	258	(88)	(2)	(90)
Shares, Outstanding at Dec. 31, 2013		0	0	429
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance related to benefit and investment plans				0	12
Issuance related to benefit and investment plans (in shares)				1
Net income	611					611
Common stock dividends						(408)
Balance at Dec. 31, 2014	$ 4,548	$ 0	$ 0	$ 4	$ 4,169	$ 461	$ (85)	$ (1)	$ (86)
Shares, Outstanding at Dec. 31, 2014		0	0	430

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Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment includes the following:

	Weighted Average Useful Lives	December 31,
	(Years)	2014		2013
		(in millions)
Electric Transmission & Distribution	31	$	9,393	$	8,741
Natural Gas Distribution	33	5,235		4,694
Energy Services	27	84		82
Other property	22	646		621
Total		15,358		14,138
Accumulated depreciation and amortization:
Electric Transmission & Distribution		3,050		2,907
Natural Gas Distribution		1,493		1,324
Energy Services		31		28
Other property		282		286
Total accumulated depreciation and amortization		4,856		4,545
Property, plant and equipment, net		$	10,502	$	9,593

Depreciation and Amortization

The following table presents depreciation and amortization expense for 2014, 2013 and 2012 (in millions).

	2014		2013		2012
Depreciation expense	$	521	$	531	$	562
Amortization expense	492		423		488
Total depreciation and amortization expense	$	1,013	$	954	$	1,050

Asset Retirement Obligation

A reconciliation of the changes in the asset retirement obligation (ARO) liability is as follows (in millions):

	December 31,
	2014		2013
Beginning balance	$	134	$	164
Accretion expense	5		5
Revisions in estimates of cash flows	37		(35		)
Ending balance	$	176	$	134

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Short Term Borrowings and Long Term Debt (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Schedule of Short-term Borrowings and Long-term Debt

	December 31, 2014					December 31, 2013
	Long-Term			Current(1)		Long-Term			Current(1)
	(in millions)
Short-term borrowings:
Inventory financing	$	—		$	53	$	—		$	43
Total short-term borrowings	—			53		—			43
Long-term debt:
CenterPoint Energy:
ZENS (2)	—			152		—			143
Senior notes 5.95% to 6.85% due 2015 to 2018	550			200		750			—
Pollution control bonds 4.90% to 5.125% due 2015 to 2028 (3)	118			69		187			—
Commercial paper (4)	191			—		—			—
Other	2			2		—			—
CenterPoint Houston:
First mortgage bonds 9.15% due 2021	102			—		102			—
General mortgage bonds 2.25% to 6.95% due 2022 to 2044	1,912			—		1,312			—
Pollution control bonds 4.25% to 5.60% due 2017 to 2027	—			—		183			—
System restoration bonds 1.833% to 4.243% due 2015 to 2022	415			48		463			47
Transition bonds 0.90% to 5.302% due 2015 to 2024	2,259			324		2,583			307
Other	1			—		—			—
CERC Corp.:
Senior notes 4.50% to 6.625% due 2016 to 2041	2,168			—		2,168			—
Commercial paper (4)	341			—		118			—
Other	—			—		1			—
Unamortized discount and premium, net	(50		)	—		(50		)	—
Total long-term debt	8,009			795		7,817			497
Total debt	$	8,009		$	848	$	7,817		$	540

(1) Includes amounts due or exchangeable within one year of the date noted.

(2) CenterPoint Energy’s ZENS obligation is bifurcated into a debt component and an embedded derivative component. For additional information regarding ZENS, see Note 10(b). As ZENS are exchangeable for cash at any time at the option of the holders, these notes are classified as a current portion of long-term debt.

(3) $118 million of these series of debt were secured by general mortgage bonds of CenterPoint Houston at both December 31, 2014 and 2013.

(4) Classified as long-term debt because the termination date of the facility that backstops the commercial paper is more than one year from the date noted.

Schedule of Revolving Credit Facilities and Utilization of Such Facilities

As of December 31, 2014 and 2013, CenterPoint Energy, CenterPoint Houston and CERC Corp. had the following revolving credit facilities and utilization of such facilities (in millions):

			December 31, 2014						December 31, 2013
	Size of Facility		Loans		Letters of Credit		Commercial Paper		Loans		Letters of Credit		Commercial Paper
CenterPoint Energy	$	1,200	$	—	$	6	$	191	$	—	$	6	$	—
CenterPoint Houston	300		—		4		—		—		4		—
CERC Corp.	600		—		—		341		—		—		118
Total	$	2,100	$	—	$	10	$	532	$	—	$	10	$	118

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Stock-Based Incentive Compensation Plans and Employee Benefit Plans (Plan Assets) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Savings Plan [Abstract]
Maximum percentage of eligible compensation employees may contribute to the savings plan (in hundredths)	50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	100.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	6.00%
Number of Common stock held by the savings plan (in shares)	17,497,676
Percentage of investment in common stocks (in hundredths)	20.00%
Defined Contribution Plan, Cost Recognized	$ 39		$ 38		$ 36
Postemployment Benefits [Abstract]
Postemployment Benefits, Period Expense	3		4		8
Other Non-Qualified Plans [Abstract]
Benefit expense related to deferred compensation plans	5		5		5
Pension Plan [Member]
Pension plan assets, fair value	1,925		1,803		1,698
Obligation To Return Cash Received As Collateral From Securities Lending,	(86)		(71)
Total contributions to the plans during the period	97		91
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Pension benefit payments 2015	223
Pension benefit payments 2016	143
Pension benefit payments 2017	147
Pension benefit payments 2018	154
Pension benefit payments 2019	152
Pension benefit payments 2020 - 2024	785
Postretirement Benefits [Member]
Pension plan assets, fair value	141		140		139
Total contributions to the plans during the period	18		19
Estimated future contributions in the next fiscal year	17
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Pension benefit payments 2015	35
Pension benefit payments 2016	36
Pension benefit payments 2017	38
Pension benefit payments 2018	40
Pension benefit payments 2019	42
Pension benefit payments 2020 - 2024	228
Medicare subsidy receipts - 2015	(4)
Medicare subsidy receipts - 2016	(4)
Medicare subsidy receipts - 2017	(5)
Medicare subsidy receipts - 2018	(5)
Medicare subsidy receipts - 2019	(6)
Medicare subsidy receipts - 2020 - 2024	(39)
Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	346		354
Obligation To Return Cash Received As Collateral From Securities Lending,	(86)		(71)
Fair Value, Inputs, Level 1 [Member] | Postretirement Benefits [Member]
Pension plan assets, fair value	141		140
Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	1,578		1,448
Obligation To Return Cash Received As Collateral From Securities Lending,	0		0
Fair Value, Inputs, Level 2 [Member] | Postretirement Benefits [Member]
Pension plan assets, fair value	0		0
Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	1		1
Obligation To Return Cash Received As Collateral From Securities Lending,	0		0
Fair Value, Inputs, Level 3 [Member] | Postretirement Benefits [Member]
Pension plan assets, fair value	0		0
U.S. Equity [Member] | Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	12.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	28.00%
Pension plan assets, fair value	83		77
U.S. Equity [Member] | Postretirement Benefits [Member]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	14.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	24.00%
U.S. Equity [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	83		77
U.S. Equity [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
U.S. Equity [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
International Developed Market Equity [Member] | Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	7.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	17.00%
International Developed Market Equity [Member] | Postretirement Benefits [Member]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	3.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	13.00%
Emerging Market Equity [Member] | Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	3.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	13.00%
Emerging Market Equity [Member] | Postretirement Benefits [Member]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	0.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	0.00%
Fixed Income [Member] | Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	54.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	66.00%
Fixed Income [Member] | Postretirement Benefits [Member]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	68.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	78.00%
Cash and Cash Equivalents [Member] | Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	0.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	2.00%
Pension plan assets, fair value	6		11
Cash and Cash Equivalents [Member] | Postretirement Benefits [Member]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	0.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	2.00%
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	6		11
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Common Collective Trust Funds [Member] | Pension Plan [Member]
Pension plan assets, fair value	1,108	[1]	1,107	[2]
Common Collective Trust Funds [Member] | International Equity [Member] | Pension Plan [Member]
Defined Benefit Plan, Actual Plan Asset Allocations	22.00%		25.00%
Common Collective Trust Funds [Member] | Fixed Income Funds [Member] | Pension Plan [Member]
Defined Benefit Plan, Actual Plan Asset Allocations	61.00%		50.00%
Common Collective Trust Funds [Member] | U.S. Equity [Member] | Pension Plan [Member]
Defined Benefit Plan, Actual Plan Asset Allocations	14.00%		20.00%
Common Collective Trust Funds [Member] | Emerging Market Equity [Member] | Pension Plan [Member]
Defined Benefit Plan, Actual Plan Asset Allocations	3.00%		5.00%
Common Collective Trust Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0	[1]	0	[2]
Common Collective Trust Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	1,108	[1]	1,107	[2]
Common Collective Trust Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0	[1]	0	[2]
Investment grade or above [Member] | Pension Plan [Member]
Pension plan assets, fair value	368		256
Investment grade or above [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Investment grade or above [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	368		256
Investment grade or above [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
International equities [Member] | Pension Plan [Member]
Pension plan assets, fair value	49		75
International equities [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	49		75
International equities [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
International equities [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Cash received as collateral from securities [Member] | Pension Plan [Member]
Pension plan assets, fair value	86		71
Cash received as collateral from securities [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	86		71
Cash received as collateral from securities [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Cash received as collateral from securities [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
US Government Agencies Debt Securities [Member] | Pension Plan [Member]
Pension plan assets, fair value			1
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value			1
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value			0
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value			0
U.S. treasuries [Member] | Pension Plan [Member]
Pension plan assets, fair value	47		18
U.S. treasuries [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	47		18
U.S. treasuries [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
U.S. treasuries [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Mortgage backed securities [Member] | Pension Plan [Member]
Pension plan assets, fair value	4		7
Mortgage backed securities [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Mortgage backed securities [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	4		7
Mortgage backed securities [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Asset backed securities [Member] | Pension Plan [Member]
Pension plan assets, fair value	4		6
Asset backed securities [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Asset backed securities [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	4		6
Asset backed securities [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Municipal bonds [Member] | Pension Plan [Member]
Pension plan assets, fair value	79		61
Municipal bonds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Municipal bonds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	79		61
Municipal bonds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Mutual funds [Member] | Pension Plan [Member]
Pension plan assets, fair value	161	[3]	172	[4]
Mutual funds [Member] | Postretirement Benefits [Member]
Pension plan assets, fair value	141	[5]	140	[6]
Mutual funds [Member] | International Equity [Member] | Pension Plan [Member]
Defined Benefit Plan, Actual Plan Asset Allocations	57.00%		58.00%
Mutual funds [Member] | International Equity [Member] | Postretirement Benefits [Member]
Defined Benefit Plan, Actual Plan Asset Allocations	8.00%		8.00%
Mutual funds [Member] | Fixed Income Funds [Member] | Postretirement Benefits [Member]
Defined Benefit Plan, Actual Plan Asset Allocations	73.00%		72.00%
Mutual funds [Member] | U.S. Equity [Member] | Pension Plan [Member]
Defined Benefit Plan, Actual Plan Asset Allocations	13.00%		12.00%
Mutual funds [Member] | U.S. Equity [Member] | Postretirement Benefits [Member]
Defined Benefit Plan, Actual Plan Asset Allocations	19.00%		20.00%
Mutual funds [Member] | Emerging Market Equity [Member] | Pension Plan [Member]
Defined Benefit Plan, Actual Plan Asset Allocations	30.00%		30.00%
Mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	161	[3]	172	[4]
Mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Postretirement Benefits [Member]
Pension plan assets, fair value	141	[5]	140	[6]
Mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0	[3]	0	[4]
Mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Postretirement Benefits [Member]
Pension plan assets, fair value	0	[5]	0	[6]
Mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0	[3]	0	[4]
Mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Postretirement Benefits [Member]
Pension plan assets, fair value	0	[5]	0	[6]
International government bonds [Member] | Pension Plan [Member]
Pension plan assets, fair value	15		11
International government bonds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
International government bonds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	15		11
International government bonds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Real estate [Member] | Pension Plan [Member]
Pension plan assets, fair value	1		1
Real estate [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Real estate [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]
Pension plan assets, fair value	0		0
Real estate [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]
Pension plan assets, fair value	1		1
Benefit Obligation [Member]
Postemployment Benefits [Abstract]
Postemployment benefit obligations	28		30
Other Non-Qualified Plans [Abstract]
Other non-qualified plans benefit obligations deferred compensation	60		64
Benefit obligations related to split-dollar life insurance arrangements	33		28
Pension Plan Qualified [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation	2,273		2,031
Total contributions to the plans during the period	87
Estimated future contributions in the next fiscal year	35
Pension Plan Non Qualified [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation	98		92
Total contributions to the plans during the period	10
Estimated future contributions in the next fiscal year	$ 31

[1] 61% of the amount invested in common collective trust funds is in fixed income securities, 14% is in U.S. equities, 22% is in international equities and 3% is in emerging market equities.

[2] 50% of the amount invested in common collective trust funds is in fixed income securities, 20% is in U.S. equities, 25% is in international equities and 5% is in emerging market equities.

[3] 57% of the amount invested in mutual funds is in international equities, 30% is in emerging market equities and 13% is in U.S. equities.

[4] 58% of the amount invested in mutual funds is in international equities, 30% is in emerging market equities and 12% is in U.S. equities.

[5] 73% of the amount invested in mutual funds is in fixed income securities, 19% is in U.S. equities and 8% is in international equities.

[6] 72% of the amount invested in mutual funds is in fixed income securities, 20% is in U.S. equities and 8% is in international equities.

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Schedule I: Financial Information of CenterPoint Energy, Inc. (Parent Company) (Statements of Cash Flows) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash Flows from Operating Activities:
Net Income	$ 611	$ 311	$ 417
Non-cash items included in net income:
Deferred income tax expense	280	356	328
Amortization of debt issuance costs	28	30	32
Loss on indexed debt securities	86	193	71
Changes in working capital:
Accounts payable	(3)	152	(6)
Other current assets	1	(2)	(12)
Other current liabilities	(20)	21	18
Other	13	24	17
Net cash provided by operating activities	1,397	1,613	1,860
Investing Activities:
Net cash used in investing activities	(1,384)	(1,300)	(1,603)
Financing Activities:
Proceeds from (payments of) commercial paper, net	414	118	(285)
Payments of long-term debt	(537)	(1,573)	(1,590)
Debt issuance costs	(8)	(3)	(16)
Common stock dividends paid	(408)	(355)	(346)
Proceeds from issuance of common stock, net	1	4	4
Redemption of indexed debt securities	0	(8)	0
Other, net	6	18	0
Net cash provided by (used in) financing activities	77	(751)	169
Net Increase (Decrease) in Cash and Cash Equivalents	90	(438)	426
Cash and Cash Equivalents at Beginning of Year	208	646	220
Cash and Cash Equivalents at End of Year	298	208	646
CenterPoint Energy [Member]
Cash Flows from Operating Activities:
Net Income	611	311	417
Non-cash items included in net income:
Equity income of subsidiaries	(708)	(505)	(542)
Deferred income tax expense	86	6	113
Amortization of debt issuance costs	4	4	4
Loss on indexed debt securities	86	193	71
Changes in working capital:
Accounts receivable/(payable) from subsidiaries, net	(7)	47	39
Accounts payable	(3)	5	0
Other current assets	0	0	26
Other current liabilities	(83)	42	(63)
Common stock dividends received from subsidiaries	315	766	1,700
Other	(76)	(70)	(72)
Net cash provided by operating activities	225	799	1,693
Investing Activities:
Decrease (increase) in notes receivable from subsidiaries	(139)	868	(398)
Net cash used in investing activities	(139)	868	(398)
Financing Activities:
Proceeds from (payments of) commercial paper, net	191	0	0
Payments of long-term debt	0	(151)	(375)
Debt issuance costs	(1)	(2)	0
Common stock dividends paid	(408)	(355)	(346)
Proceeds from issuance of common stock, net	1	4	4
Short-term notes payable to subsidiaries	131	(1,173)	(578)
Redemption of indexed debt securities	0	(8)	0
Other, net	0	18	0
Net cash provided by (used in) financing activities	(86)	(1,667)	(1,295)
Net Increase (Decrease) in Cash and Cash Equivalents	0	0	0
Cash and Cash Equivalents at Beginning of Year	0	0	0
Cash and Cash Equivalents at End of Year	$ 0	$ 0	$ 0

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STATEMENTS OF CONSOLIDATED INCOME (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statements of Consolidated Income
Revenues	$ 9,226	$ 8,106	$ 7,452
Expenses:
Natural gas	4,921	3,908	2,873
Operation and maintenance	1,969	1,847	1,874
Depreciation and amortization	1,013	954	1,050
Taxes other than income taxes	388	387	365
Goodwill impairment	0	0	252
Total	8,291	7,096	6,414
Operating Income	935	1,010	1,038
Other Income (Expense):
Gain on marketable securities	163	236	154
Loss on indexed debt securities	(86)	(193)	(71)
Interest and other finance charges	(353)	(351)	(422)
Interest on transition and system restoration bonds	(118)	(133)	(147)
Equity in earnings of unconsolidated affiliates	308	188	31
Step acquisition gain	0	0	136
Other, net	36	24	38
Total	(50)	(229)	(281)
Income Before Income Taxes	885	781	757
Income tax expense	274	470	340
Net Income	$ 611	$ 311	$ 417
Basic Earnings Per Share:
Basic Earnings Per Share	$ 1.42	$ 0.73	$ 0.98
Diluted Earnings Per Share:
Diluted Earnings Per Share	$ 1.42	$ 0.72	$ 0.97
Weighted Average Shares Outstanding, Basic	429,634,000	428,466,000	427,189,000
Weighted Average Shares Outstanding, Diluted	431,668,000	430,930,000	429,794,000

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Reportable Business Segments (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Financial Data for Business Segments

Financial data for business segments and products and services are as follows (in millions):

	Revenues from External Customers			Intersegment Revenues			Depreciation and Amortization		Operating Income (Loss)			Total Assets				Expenditures for Long-Lived Assets
As of and for the year ended December 31, 2014:
Electric Transmission & Distribution	$	2,845	(1)	$	—		$	768	$	595		$	10,066			$	818
Natural Gas Distribution	3,271			30			201		287			5,464				525
Energy Services	3,095			84			5		52			978				3
Midstream Investments (2)	—			—			—		—			4,521				—
Other	15			—			39		1			3,368			(3)	56
Reconciling Eliminations	—			(114		)	—		—			(1,197		)		—
Consolidated	$	9,226		$	—		$	1,013	$	935		$	23,200			$	1,402
As of and for the year ended December 31, 2013:
Electric Transmission & Distribution	$	2,570	(1)	$	—		$	685	$	607		$	9,605			$	759
Natural Gas Distribution	2,837			26			185		263			4,976				430
Energy Services	2,374			27			5		13			895				3
Interstate Pipelines (4) (6)	133			53			20		72			—				29
Field Services (5) (6)	178			18			20		73			—				16
Midstream Investments (2)	—			—			—		—			4,518				—
Other	14			—			39		(18		)	3,026			(3)	35
Reconciling Eliminations	—			(124		)	—		—			(1,150		)		—
Consolidated	$	8,106		$	—		$	954	$	1,010		$	21,870			$	1,272
As of and for the year ended December 31, 2012:
Electric Transmission & Distribution	$	2,540	(1)	$	—		$	729	$	639		$	11,174			$	599
Natural Gas Distribution	2,320			22			173		226			4,775				359
Energy Services	1,758			26			6		(250		)	839				6
Interstate Pipelines (4)	356			146			56		207			4,004				132
Field Services (5)	467			39			50		214			2,453				52
Other	11			—			36		2			2,600			(3)	40
Reconciling Eliminations	—			(233		)	—		—			(2,974		)		—
Consolidated	$	7,452		$	—		$	1,050	$	1,038		$	22,871			$	1,188

(1) Sales to affiliates of NRG in 2014, 2013 and 2012 represented approximately $735 million, $658 million and $648 million, respectively, of CenterPoint Houston’s transmission and distribution revenues. Sales to affiliates of Energy Future Holdings Corp. in 2014, 2013 and 2012 represented approximately $189 million, $167 million and $162 million, respectively, of CenterPoint Houston’s transmission and distribution revenues.

(2) Midstream Investments reported equity earnings of $303 million from Enable and $5 million of equity earnings from CenterPoint Energy’s interest in SESH for the year ended December 31, 2014. Midstream Investments reported equity earnings of $173 million from Enable and $8 million of equity earnings from CenterPoint Energy’s interest in SESH for the eight months ended December 31, 2013. Included in total assets of Midstream Investments as of December 31, 2014 and 2013 is $4,520 million and $4,319 million, respectively, related to CenterPoint Energy’s investment in Enable and $1 million and $199 million related to CenterPoint Energy’s retained interest in SESH, respectively.

(3) Included in total assets of Other Operations as of December 31, 2014, 2013 and 2012, are pension and other postemployment related regulatory assets of $795 million, $627 million and $832 million, respectively.

(4) Interstate Pipelines recorded equity income of $7 million and $26 million in the years ended December 31, 2013 and 2012, respectively, from its interest in SESH, a jointly-owned pipeline. These amounts are included in Equity in earnings of unconsolidated affiliates under the Other Income (Expense) caption.  Interstate Pipelines’ investment in SESH was $404 million as of December 31, 2012, and is included in Investment in unconsolidated affiliates. As discussed above, effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable and equity earnings associated with its interest in SESH under its Midstream Investments segment, and no longer has an Interstate Pipelines reporting segment prospectively.

(5) Field Services recorded equity income of $5 million for the year ended December 31, 2012 from its interest in Waskom. This amount is included in Equity in earnings of unconsolidated affiliates under the Other Income (Expense) caption. Beginning on August 1, 2012, financial results for Waskom are included in operating income due to the July 31, 2012 purchase of the 50% interest in Waskom that CenterPoint Energy did not already own. CenterPoint Energy contributed 100% interest in Waskom to Enable on May 1, 2013. Effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable under its Midstream Investments segment, and no longer has a Field Services reporting segment prospectively.

(6) Results reflected in the year ended December 31, 2013 represent only January 2013 through April 2013.

Revenues by Products and Services

	Year Ended December 31,
Revenues by Products and Services:	2014		2013		2012
Electric delivery	$	2,845	$	2,570	$	2,540
Retail gas sales	5,049		4,150		3,328
Wholesale gas sales	1,159		913		613
Gas transportation and processing	38		345		847
Energy products and services	135		128		124
Total	$	9,226	$	8,106	$	7,452

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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents ($290 and $207 related to VIEs, respectively)	$ 298	$ 208
Allowance for Doubtful Accounts Receivable, Current	26	28
Accounts receivable ($58 and $60 related to VIEs, respectively), less bad debt reserve of $26 and $28, respectively	837	851
Prepaid expense and other current assets ($47 and $41 related to VIEs, respectively)	178	125
Other Assets:
Regulatory assets ($2,738 and $3,179 related to VIEs, respectively)	3,527	3,726
Variable Interest Entity, Primary Beneficiary [Member]
Current Assets:
Cash and cash equivalents ($290 and $207 related to VIEs, respectively)	290	207
Accounts receivable ($58 and $60 related to VIEs, respectively), less bad debt reserve of $26 and $28, respectively	58	60
Prepaid expense and other current assets ($47 and $41 related to VIEs, respectively)	47	41
Other Assets:
Regulatory assets ($2,738 and $3,179 related to VIEs, respectively)	$ 2,738	$ 3,179

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Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Capital stock shares authorized (in shares)	1,020,000,000
Common stock shares authorized (in shares)	1,000,000,000	1,000,000,000	1,000,000,000
Common stock shares par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Cumulative preferred stock shares authorized (in shares)	20,000,000	20,000,000	20,000,000
Cumulative preferred stock par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Dividends Declared Per Share	$ 0.95	$ 0.83	$ 0.81
Enable Midstream Partners [Member]
Retained Earnings, Undistributed Earnings from Equity Method Investees	$ 71	$ 67

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Stock-Based Incentive Compensation Plans and Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2014

Accumulated Other Comprehensive Income (Loss) [Line Items]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following tables summarize CenterPoint Energy’s LTIP activity for 2014:

Stock Options

	Outstanding Options
	Year Ended December 31, 2014
	Shares (Thousands)		Weighted-Average Exercise Price		Remaining Average Contractual Life (Years)	Aggregate Intrinsic Value (Millions)
Outstanding at December 31, 2013	120		$	10.93
Exercised	(120	)	10.93
Outstanding at December 31, 2014	—		—		—	$	—
Exercisable at December 31, 2014	—		—		—	—

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

Performance Awards

	Outstanding and Non-Vested Shares
	Year Ended December 31, 2014
	Shares (Thousands)		Weighted-Average Grant Date Fair Value		Remaining Average Contractual Life (Years)	Aggregate Intrinsic Value (Millions)
Outstanding at December 31, 2013	2,703		$	18.17
Granted	1,198		23.70
Forfeited or cancelled	(515	)	21.09
Vested and released to participants	(926	)	15.50
Outstanding at December 31, 2014	2,460		21.26		1.1	$	40

Schedule of Nonvested Share Activity [Table Text Block]

Stock Awards

	Outstanding and Non-Vested Shares
	Year Ended December 31, 2014
	Shares (Thousands)		Weighted-Average Grant Date Fair Value		Remaining Average Contractual Life (Years)	Aggregate Intrinsic Value (Millions)
Outstanding at December 31, 2013	898		$	18.72
Granted	322		23.89
Forfeited or cancelled	(122	)	21.60
Vested and released to participants	(375	)	17.03
Outstanding at December 31, 2014	723		21.41		1.0	$	17

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block]

The weighted-average grant-date fair values per unit of awards granted were as follows for 2014, 2013 and 2012:

	Year Ended December 31,
	2014		2013		2012
Performance awards	$	23.70	$	20.67	$	18.79
Stock awards	23.89		21.53		18.96

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value [Table Text Block]

Valuation Data

The total intrinsic value of awards received by participants was as follows for 2014, 2013 and 2012:

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Stock options exercised	$	2	$	4	$	6
Performance awards	24		20		24
Stock awards	10		10		9

Schedule of Net Benefit Costs [Table Text Block]

CenterPoint Energy’s net periodic cost includes the following components relating to pension, including the benefit restoration plan, and postretirement benefits:

	Year Ended December 31,
	2014						2013						2012
	Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits
	(in millions)
Service cost	$	42		$	2		$	44		$	2		$	35		$	1
Interest cost	100			22			90			20			100			23
Expected return on plan assets	(125		)	(7		)	(135		)	(7		)	(121		)	(7		)
Amortization of prior service cost (credit)	10			(1		)	10			1			8			3
Amortization of net loss	44			1			63			6			60			4
Amortization of transition obligation	—			5			—			7			—			7
Benefit enhancement	—			—			—			—			—			1
Curtailment (1)	6			—			—			—			—			—
Net periodic cost	$	77		$	22		$	72		$	29		$	82		$	32

(1) During the fourth quarter of 2014, CenterPoint Energy recognized a curtailment pension loss of $6 million related to employees seconded to Enable. Substantially all of the seconded employees became employees of Enable effective January 1, 2015.

Schedule of Assumptions Used [Table Text Block]

CenterPoint Energy used the following assumptions to determine net periodic cost relating to pension and postretirement benefits:

	Year Ended December 31,
	2014				2013				2012
	Pension Benefits		Post-retirement Benefits		Pension Benefits		Post-retirement Benefits		Pension Benefits		Post-retirement Benefits
Discount rate	4.80	%	4.75	%	4.00	%	3.90	%	4.90	%	4.80	%
Expected return on plan assets	7.00		5.50		8.00		5.50		8.00		5.50
Rate of increase in compensation levels	3.90		—		4.00		—		4.20		—

Schedule of Net Pension and Post-retirement Benefit Costs

The following table summarizes changes in the benefit obligation, plan assets, the amounts recognized in consolidated balance sheets and the key assumptions of CenterPoint Energy’s pension, including benefit restoration, and postretirement plans. The measurement dates for plan assets and obligations were December 31, 2014 and 2013.

	December 31,
	2014						2013
	Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits
	(in millions, except for actuarial assumptions)
Change in Benefit Obligation
Benefit obligation, beginning of year	$	2,153		$	476		$	2,316		$	538
Service cost	42			2			44			2
Interest cost	100			22			90			20
Participant contributions	—			7			—			7
Benefits paid	(156		)	(32		)	(142		)	(34		)
Actuarial (gain) loss	264			52			(155		)	(60		)
Medicare reimbursement	—			3			—			3
Plan amendment	—			1			—			—
Curtailment	—			(2		)	—			—
Benefit obligation, end of year	2,403			529			2,153			476
Change in Plan Assets
Fair value of plan assets, beginning of year	1,803			140			1,698			139
Employer contributions	97			18			91			19
Participant contributions	—			7			—			7
Benefits paid	(156		)	(32		)	(142		)	(34		)
Actual investment return	181			8			156			9
Fair value of plan assets, end of year	1,925			141			1,803			140
Funded status, end of year	$	(478	)	$	(388	)	$	(350	)	$	(336	)
Amounts Recognized in Balance Sheets
Current liabilities-other	$	(31	)	$	(9	)	$	(9	)	$	(9	)
Other liabilities-benefit obligations	(447		)	(379		)	(341		)	(327		)
Net liability, end of year	$	(478	)	$	(388	)	$	(350	)	$	(336	)
Actuarial Assumptions
Discount rate	4.05		%	3.90		%	4.80		%	4.75		%
Expected return on plan assets	6.50			5.20			7.00			5.50
Rate of increase in compensation levels	4.00			—			3.90			—
Healthcare cost trend rate assumed for the next year - Pre-65	—			7.25			—			7.00
Healthcare cost trend rate assumed for the next year - Post-65	—			8.50			—			7.50
Prescription drug cost trend rate assumed for the next year	—			6.50			—			7.00
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	—			5.00			—			5.50
Year that the healthcare rate reaches the ultimate trend rate	—			2024			—			2018
Year that the prescription drug rate reaches the ultimate trend rate	—			2024			—			2018

Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

The changes in plan assets and benefit obligations recognized in other comprehensive income during 2014 are as follows (in millions):

	Pension Benefits		Postretirement Benefits
Net gain (loss)	$	10	$	(6	)
Amortization of net loss (gain)	9		(1		)
Amortization of prior service credit (cost)	2		(1		)
Total recognized in comprehensive income	$	21	$	(8	)

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]

The amounts in accumulated other comprehensive loss expected to be recognized as components of net periodic benefit cost during 2015 are as follows (in millions):

	Pension Benefits		Postretirement Benefits
Unrecognized actuarial loss	$	12	$	1
Unrecognized prior service cost	1		—
Amounts in accumulated comprehensive loss to be recognized in net periodic cost in 2015	$	13	$	1

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

The following table displays pension benefits related to CenterPoint Energy’s pension plans that have accumulated benefit obligations in excess of plan assets:

	December 31,
	2014				2013
	Pension Qualified		Pension Non-qualified		Pension Qualified		Pension Non-qualified
	(in millions)
Accumulated benefit obligation	$	2,273	$	98	$	2,031	$	92
Projected benefit obligation	2,304		98		2,061		92
Fair value of plan assets	1,925		—		1,803		—

Schedule of a One-percent Point Change in the Assumed Health Care Cost Trend Rates

Assumed healthcare cost trend rates have a significant effect on the reported amounts for CenterPoint Energy’s postretirement benefit plans. A 1% change in the assumed healthcare cost trend rate would have the following effects:

	1% Increase		1% Decrease
	(in millions)
Effect on the postretirement benefit obligation	$	19	$	16
Effect on total of service and interest cost	1		1

Target Allocation of Plan Assets [Table Text Block]

As part of the investment strategy discussed above, CenterPoint Energy maintained the following weighted average allocation targets for its benefit plans as of December 31, 2014:

	Pension Benefits	Postretirement Benefits
U.S. equity	12 – 28%	14 – 24%
International developed market equity	7 – 17%	3 – 13%
Emerging market equity	3 – 13%	—
Fixed income	54 – 66%	68 – 78%
Cash	0 – 2%	0 – 2%

Schedule of Allocation of Plan Assets [Table Text Block]

The following tables set forth by level, within the fair value hierarchy (see Note 8), CenterPoint Energy’s pension plan assets at fair value as of December 31, 2014 and 2013:

	Fair Value Measurements at December 31, 2014
	(in millions)
	Total			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	6		$	6		$	—	$	—
Common collective trust funds (1)	1,108			—			1,108		—
Corporate bonds:
Investment grade or above	368			—			368		—
Equity securities:
International companies	49			49			—		—
U.S. companies	83			83			—		—
Cash received as collateral from securities lending	86			86			—		—
U.S. treasuries	47			47			—		—
Mortgage backed securities	4			—			4		—
Asset backed securities	4			—			4		—
Municipal bonds	79			—			79		—
Mutual funds (2)	161			161			—		—
International government bonds	15			—			15		—
Real estate	1			—			—		1
Obligation to return cash received as collateral from securities lending	(86		)	(86		)	—		—
Total	$	1,925		$	346		$	1,578	$	1

(1) 61% of the amount invested in common collective trust funds is in fixed income securities, 14% is in U.S. equities, 22% is in international equities and 3% is in emerging market equities.

(2) 57% of the amount invested in mutual funds is in international equities, 30% is in emerging market equities and 13% is in U.S. equities.

	Fair Value Measurements at December 31, 2013
	(in millions)
	Total			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	11		$	11		$	—	$	—
Common collective trust funds (1)	1,107			—			1,107		—
Corporate bonds:
Investment grade or above	256			—			256		—
Equity securities:
International companies	75			75			—		—
U.S. companies	77			77			—		—
Cash received as collateral from securities lending	71			71			—		—
U.S. government backed agencies bonds	1			1			—		—
U.S. treasuries	18			18			—		—
Mortgage backed securities	7			—			7		—
Asset backed securities	6			—			6		—
Municipal bonds	61			—			61		—
Mutual funds (2)	172			172			—		—
International government bonds	11			—			11		—
Real estate	1			—			—		1
Obligation to return cash received as collateral from securities lending	(71		)	(71		)	—		—
Total	$	1,803		$	354		$	1,448	$	1

(1) 50% of the amount invested in common collective trust funds is in fixed income securities, 20% is in U.S. equities, 25% is in international equities and 5% is in emerging market equities.

(2) 58% of the amount invested in mutual funds is in international equities, 30% is in emerging market equities and 12% is in U.S. equities.

The pension plan utilized both exchange traded and over-the-counter financial instruments such as futures, interest rate options and swaps that were marked to market daily with the gains/losses settled in the cash accounts. The pension plan did not include any holdings of CenterPoint Energy common stock as of December 31, 2014 or 2013.

The changes in the fair value of the pension plan’s level 3 investments for the years ended December 31, 2014 and 2013 were not material.

The following tables present by level, within the fair value hierarchy, CenterPoint Energy’s postretirement plan assets at fair value as of December 31, 2014 and 2013, by asset category:

	Fair Value Measurements at December 31, 2014
	(in millions)
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Mutual funds (1)	$	141	$	141	$	—	$	—
Total	$	141	$	141	$	—	$	—

(1) 73% of the amount invested in mutual funds is in fixed income securities, 19% is in U.S. equities and 8% is in international equities.

	Fair Value Measurements at December 31, 2013
	(in millions)
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Mutual funds (1)	$	140	$	140	$	—	$	—
Total	$	140	$	140	$	—	$	—

(1) 72% of the amount invested in mutual funds is in fixed income securities, 20% is in U.S. equities and 8% is in international equities.

Schedule of Expected Benefit Payments [Table Text Block]

The following benefit payments are expected to be paid by the pension and postretirement benefit plans (in millions):

			Postretirement Benefit Plan
	Pension Benefits		Benefit Payments		Medicare Subsidy Receipts
2015	$	223	$	35	$	(4	)
2016	143		36		(4		)
2017	147		38		(5		)
2018	154		40		(5		)
2019	152		42		(6		)
2020-2024	785		228		(39		)

Accumulated Defined Benefit Plans Adjustment [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

CenterPoint Energy’s changes in accumulated comprehensive loss related to defined benefit, postretirement and other postemployment plans are as follows (in millions):

	Year Ended December 31,
	2014			2013
Beginning Balance	$	(88	)	$	(132	)
Other comprehensive income (loss) before reclassifications (1)	(3		)	52
Amounts reclassified from accumulated other comprehensive income:
Prior service cost (2)	2			3
Actuarial losses (2)	9			14
Total reclassifications from accumulated other comprehensive income	11			17
Tax expense	(5		)	(25		)
Net current period other comprehensive income	3			44
Ending Balance	$	(85	)	$	(88	)

________________

(1) Total other comprehensive income (loss) related to the re-measurement of pension, postretirement and other postemployment plans.

(2) These accumulated other comprehensive components are included in the computation of net periodic cost.

Amounts recognized in accumulated other comprehensive loss consist of the following:

	December 31,
	2014				2013
	Pension Benefits		Postretirement Benefits		Pension Benefits		Postretirement Benefits
	(in millions)
Unrecognized actuarial loss	$	113	$	14	$	126	$	7
Unrecognized prior service cost	4		2		12		1
Net amount recognized in accumulated other comprehensive loss	$	117	$	16	$	138	$	8

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Unaudited Quarterly Information (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Selected Quarterly Financial Information [Abstract]
Revenues	$ 2,372	[1]	$ 1,807		$ 1,884		$ 3,163		$ 2,184		$ 1,640		$ 1,894	[2]	$ 2,388		$ 9,226	$ 8,106	$ 7,452
Operating income	221	[1]	233		186		295		211		244		223	[2]	332		935	1,010	1,038
Net Income	176	[1]	143		107		185		113		151		(100)	[2]	147		611	311	417
Basic Earnings Per Share:
Basic earnings per share	$ 0.41	[1],[3]	$ 0.33	[3]	$ 0.25	[3]	$ 0.43	[3]	$ 0.26	[3]	$ 0.35	[3]	$ (0.23)	[2],[3]	$ 0.34	[3]	$ 1.42	$ 0.73	$ 0.98
Diluted Earnings Per Share:
Diluted earnings per share	$ 0.41	[1],[3]	$ 0.33	[3]	$ 0.25	[3]	$ 0.43	[3]	$ 0.26	[3]	$ 0.35	[3]	$ (0.23)	[2],[3]	$ 0.34	[3]	$ 1.42	$ 0.72	$ 0.97
Tax basis balance sheet adjustments																	$ (29)	$ 0	$ 0

[1] CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review.

[2] Effective May 1, 2013, CenterPoint Energy contributed CenterPoint Midstream to Enable. See Note 2(b) and Note 9 for further discussion on the formation of Enable and CenterPoint Energy’s investment in Enable, respectively.

[3] Quarterly earnings per common share are based on the weighted average number of shares outstanding during the quarter, and the sum of the quarters may not equal annual earnings per common share.

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Income Taxes

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The components of CenterPoint Energy’s income tax expense were as follows:

	Year Ended December 31,
	2014			2013			2012
	(in millions)
Current income tax expense (benefit):
Federal	$	(20	)	$	91		$	—
State	14			23			12
Total current expense (benefit)	(6		)	114			12
Deferred income tax expense (benefit):
Federal	273			370			280
State	7			(14		)	48
Total deferred expense	280			356			328
Total income tax expense	$	274		$	470		$	340

A reconciliation of income tax expense using the federal statutory income tax rate to the actual income tax expense and resulting effective income tax rate is as follows:

	Year Ended December 31,
	2014			2013			2012
	(in millions)
Income before income taxes	$	885		$	781		$	757
Federal statutory income tax rate	35.0		%	35.0		%	35.0		%
Expected federal income tax expense	310			273			265
Increase (decrease) in tax expense resulting from:
State income tax expense, net of federal income tax	16			21			39
Amortization of investment tax credit	—			—			(2		)
Tax effect related to the formation of Enable	—			196			—
Decrease in settled and uncertain income tax positions	—			(9		)	(33		)
Goodwill impairment	—			—			88
Tax basis balance sheet adjustments	(29		)	—			—
Other, net	(23		)	(11		)	(17		)
Total	(36		)	197			75
Total income tax expense	$	274		$	470		$	340
Effective tax rate	31.0		%	60.2		%	44.9		%

In 2014, CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review.  The adjustment resulted in a decrease to deferred tax liabilities of $32 million, a decrease to income taxes payable of $5 million and a decrease to income tax regulatory assets of $8 million.  CenterPoint Energy determined the impact of the $29 million adjustment was not material to any prior period or the year ended December 31, 2014.

In 2013, CenterPoint Energy recorded a deferred tax expense of $225 million at the formation of Enable related to the book-to-tax basis difference for contributed non-tax deductible goodwill and recognized a tax benefit of $29 million associated with the remeasurement of state deferred taxes at formation. In addition, CenterPoint Energy recognized a tax benefit of $8 million based on the settlement with the Internal Revenue Service (IRS) of outstanding tax claims for the 2002 and 2003 tax years.

In 2012, CenterPoint Energy recorded a non-tax deductible impairment of goodwill of $252 million ($88 million tax effect) and a net decrease in income tax expense of $33 million related to favorable audit settlements.

The tax effects of temporary differences that give rise to significant portions of deferred tax assets and liabilities were as follows:

	December 31,
	2014			2013
	(in millions)
Deferred tax assets:
Current:
Allowance for doubtful accounts	$	10		$	11
Deferred gas costs	—			7
Other	13			12
Total current deferred tax assets	23			30
Non-current:
Loss and credit carryforwards	69			51
Employee benefits	327			258
Other	89			76
Total non-current deferred tax assets before valuation allowance	485			385
Valuation allowance	(2		)	(2		)
Total non-current deferred tax assets, net of valuation allowance	483			383
Total deferred tax assets, net of valuation allowance	506			413
Deferred tax liabilities:
Current:
Unrealized gain on indexed debt securities	636			541
Unrealized gain on TW securities	65			97
Deferred gas costs	6			—
Total current deferred tax liabilities	707			638
Non-current:
Depreciation	2,201			1,908
Regulatory assets, net	1,228			1,308
Investment in unconsolidated affiliates	1,789			1,590
Other	21			119
Total non-current deferred tax liabilities	5,239			4,925
Total deferred tax liabilities	5,946			5,563
Accumulated deferred income taxes, net	$	5,440		$	5,150

Tax Attribute Carryforwards and Valuation Allowance.  CenterPoint Energy has $9 million of federal capital loss carryforwards which expire in 2018, $725 million of state net operating loss carryforwards which expire between 2015 and 2034, $4 million of state tax credits which do not expire, and $244 million of state capital loss carryforwards which expire in 2017 for which management established a full valuation allowance of $2 million net of federal tax. The valuation allowance was established based upon management’s evaluation that loss carryforwards may not be fully realized.

Uncertain Income Tax Positions. The following table reconciles the beginning and ending balance of CenterPoint Energy’s unrecognized tax benefits (expenses):

	December 31,
	2014		2013			2012
	(in millions)
Balance, beginning of year	$	—	$	(23	)	$	51
Tax Positions related to prior years:
Reductions	—		(1		)	(75		)
Tax Positions related to current year:
Settlements	—		24			1
Balance, end of year	$	—	$	—		$	(23	)

CenterPoint Energy reported no uncertain tax liability as of December 31, 2014 and expects no significant change to the uncertain tax liability over the next twelve months ending December 31, 2015 to have a material impact on financial position, results of operations and cash flows.

CenterPoint Energy recognizes interest and penalties as a component of income tax expense.  CenterPoint Energy recognized $3 million of income tax expense, $3 million of income tax benefit and $7 million of income tax benefit related to interest on income tax positions during 2014, 2013 and 2012, respectively.  CenterPoint Energy had $5 million of interest receivable on income tax positions accrued at December 31, 2013.

Tax Audits and Settlements.   Tax years through 2011 have been audited and settled with the IRS. The consolidated federal income tax returns for the years 2012 and 2013 are currently under audit by the IRS. For 2014, CenterPoint Energy is a participant in the IRS’s Compliance Assurance Process. CenterPoint Energy has considered the effects of these examinations in its accrual for settled issues and liability for uncertain income tax positions as of December 31, 2014.

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Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Value of Derivative Instruments

Fair Value of Derivative Instruments
	December 31, 2013
Total derivatives not designated as hedging instruments	Balance Sheet Location	Derivative Assets Fair Value		Derivative Liabilities Fair Value
		(in millions)
Natural gas derivatives (1) (2) (3)	Current Assets: Non-trading derivative assets	$	28	$	4
Natural gas derivatives (1) (2)	Other Assets: Non-trading derivative assets	10		—
Natural gas derivatives (1) (2)	Current Liabilities: Non-trading derivative liabilities	4		21
Natural gas derivatives (1) (2)	Other Liabilities: Non-trading derivative liabilities	1		5
Indexed debt securities derivative	Current Liabilities	—		455
Total		$	43	$	485

(1) The fair value shown for natural gas contracts is comprised of derivative gross volumes totaling 607 Bcf or a net 46 Bcf long position.  Of the net long position, basis swaps constitute 99 Bcf.

(2) Natural gas contracts are presented on a net basis in the Consolidated Balance Sheets. Natural gas contracts are subject to master netting arrangements. This netting applies to all undisputed amounts due or past due and causes derivative assets (liabilities) to be ultimately presented net in a liability (asset) account within the Consolidated Balance Sheets. The net of total non-trading derivative assets and liabilities was a $13 million asset as shown on CenterPoint Energy’s Consolidated Balance Sheets (and as detailed in the table below), and was comprised of the natural gas contracts derivative assets and liabilities separately shown above, offset by collateral netting of less than $1 million.

(3) The $28 million Derivative Current Asset includes $1 million related to physical forwards purchased from Enable.

The following tables present information about CenterPoint Energy’s derivative instruments and hedging activities. The first two tables provide a balance sheet overview of CenterPoint Energy’s Derivative Assets and Liabilities as of December 31, 2014 and 2013, while the last table provides a breakdown of the related income statement impacts for the years ending December 31, 2014 and 2013.

Fair Value of Derivative Instruments
	December 31, 2014
Total derivatives not designated as hedging instruments	Balance Sheet Location	Derivative Assets Fair Value		Derivative Liabilities Fair Value
		(in millions)
Natural gas derivatives (1) (2) (3)	Current Assets: Non-trading derivative assets	$	101	$	1
Natural gas derivatives (1) (2) (3)	Other Assets: Non-trading derivative assets	32		—
Natural gas derivatives (1) (2) (3)	Current Liabilities: Non-trading derivative liabilities	14		83
Natural gas derivatives (1) (2) (3)	Other Liabilities: Non-trading derivative liabilities	2		18
Indexed debt securities derivative	Current Liabilities	—		541
Total		$	149	$	643

(1) The fair value shown for natural gas contracts is comprised of derivative gross volumes totaling 804 billion cubic feet (Bcf) or a net 60 Bcf long position.  Of the net long position, basis swaps constitute 127 Bcf.

(2) Natural gas contracts are presented on a net basis in the Consolidated Balance Sheets. Natural gas contracts are subject to master netting arrangements. This netting applies to all undisputed amounts due or past due and causes derivative assets (liabilities) to be ultimately presented net in a liability (asset) account within the Consolidated Balance Sheets. The net of total non-trading derivative assets and liabilities was a $111 million asset as shown on CenterPoint Energy’s Consolidated Balance Sheets (and as detailed in the table below), and was comprised of the natural gas contracts derivative assets and liabilities separately shown above offset by collateral netting of $64 million.

(3) Derivative Assets and Derivative Liabilities include no material amounts related to physical forward transactions with Enable.

Offsetting of Natural Gas Derivative Assets and Liabilities [Table Text Block]

Offsetting of Natural Gas Derivative Assets and Liabilities
	December 31, 2014
	Gross AmountsRecognized (1)			Gross Amounts Offset in the Consolidated Balance Sheets			Net Amount Presented in the Consolidated Balance Sheets (2)
	(in millions)
Current Assets: Non-trading derivative assets	$	115		$	(16	)	$	99
Other Assets: Non-trading derivative assets	34			(2		)	32
Current Liabilities: Non-trading derivative liabilities	(84		)	65			(19		)
Other Liabilities: Non-trading derivative liabilities	(18		)	17			(1		)
Total	$	47		$	64		$	111

________________

(1) Gross amounts recognized include some derivative assets and liabilities that are not subject to master netting arrangements.

(2) The derivative assets and liabilities on the Consolidated Balance Sheets exclude accounts receivable or accounts payable that, should they exist, could be used as offsets to these balances in the event of a default.

Offsetting of Natural Gas Derivative Assets and Liabilities
	December 31, 2013
	Gross AmountsRecognized (1)			Gross Amounts Offset in the Consolidated Balance Sheets			Net Amount Presented in the Consolidated Balance Sheets (2)
	(in millions)
Current Assets: Non-trading derivative assets	$	32		$	(8	)	$	24
Other Assets: Non-trading derivative assets	11			(1		)	10
Current Liabilities: Non-trading derivative liabilities	(25		)	8			(17		)
Other Liabilities: Non-trading derivative liabilities	(5		)	1			(4		)
Total	$	13		$	—		$	13

________________

(1) Gross amounts recognized include some derivative assets and liabilities that are not subject to master netting arrangements.

(2) The derivative assets and liabilities on the Consolidated Balance Sheets exclude accounts receivable or accounts payable that, should they exist, could be used as offsets to these balances in the event of a default.

Income Statement Impact of Derivative Activity

Income Statement Impact of Derivative Activity
		Year Ended December 31,
Total derivatives not designated as hedging instruments	Income Statement Location	2014			2013			2011
		(in millions)
Natural gas derivatives	Gains (Losses) in Revenue	$	35		$	11		$	43
Natural gas derivatives (1) (2)	Gains (Losses) in Expense: Natural Gas	11			10			(63		)
Indexed debt securities derivative	Gains (Losses) in Other Income (Expense)	(86		)	(193		)	(71		)
Total		$	(40	)	$	(172	)	$	(91	)

(1) The Gains (Losses) in Expense: Natural Gas includes $2 million and $(2) million during the years ended December 31, 2014 and 2013, respectively, related to physical forwards purchased from Enable.

(2) The Gains (Losses) in Expense: Natural Gas includes $-0-, $-0- and $(38) million of costs in 2014, 2013 and 2012, respectively, associated with price stabilization activities of the Natural Gas Distribution business segment that will be ultimately recovered through purchased gas adjustments.

Credit Quality of Counterparties

In addition to the risk associated with price movements, credit risk is also inherent in CenterPoint Energy’s non-trading derivative activities. Credit risk relates to the risk of loss resulting from non-performance of contractual obligations by a counterparty. The following table shows the composition of counterparties to the non-trading derivative assets of CenterPoint Energy as of December 31, 2014 and 2013 (in millions):

	December 31, 2014				December 31, 2013
	Investment Grade(1)		Total		Investment Grade(1)		Total
Energy marketers	$	2	$	4	$	1	$	4
Financial institutions	—		—		1		9
End users (2)	2		127		1		21
Total	$	4	$	131	$	3	$	34

(1) “Investment grade” is primarily determined using publicly available credit ratings and considers credit support (including parent company guarantees) and collateral (including cash and standby letters of credit). For unrated counterparties, CenterPoint Energy determines a synthetic credit rating by performing financial statement analysis and considers contractual rights and restrictions and collateral.

(2) End users are comprised primarily of customers who have contracted to fix the price of a portion of their physical gas requirements for future periods.

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Earnings Per Share

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The following table reconciles numerators and denominators of CenterPoint Energy’s basic and diluted earnings per share calculations:

	For the Year Ended December 31,
	2014		2013		2012
	(in millions, except per share and share amounts)
Net income	$	611	$	311	$	417
Basic weighted average shares outstanding	429,634,000		428,466,000		427,189,000
Plus: Incremental shares from assumed conversions:
Stock options	—		41,000		152,000
Restricted stock	2,034,000		2,423,000		2,453,000
Diluted weighted average shares	431,668,000		430,930,000		429,794,000
Basic earnings per share	$	1.42	$	0.73	$	0.98
Diluted earnings per share	$	1.42	$	0.72	$	0.97

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Subsequent Events (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended						0 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012		Jan. 22, 2015	Jan. 23, 2015
Subsequent Event [Line Items]
Quarterly Cash Dividend Declared	$ 0.95		$ 0.83		$ 0.81
Expected Cash Distribution	$ 305		$ 129		$ 39
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends Payable, Date Declared							Jan. 22, 2015
Quarterly Cash Dividend Declared							$ 0.2475
Dividends Payable, Date to be Paid							Mar. 10, 2015
Dividends Payable, Date of Record							Feb. 13, 2015
Enable Midstream Partners [Member]
Subsequent Event [Line Items]
Expected Cash Distribution	298	[1]	106	[1]	0	[1]
Enable Midstream Partners [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends Payable, Date Declared								Jan. 23, 2015
Quarterly Cash Dividend Declared								$ 0.30875
Expected Cash Distribution								$ 72

[1] On May 1, 2013, CenterPoint Energy formed Enable with OGE and ArcLight.

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STATEMENTS OF CONSOLIDATED CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Cash Flows [Abstract]
Net income	$ 611	$ 311	$ 417
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,013	954	1,050
Amortization of deferred financing costs	28	30	32
Deferred income taxes	280	356	328
Goodwill impairment	0	0	252
Step acquisition gain	0	0	(136)
Unrealized gain on marketable securities	(163)	(236)	(154)
Unrealized loss on indexed debt securities	86	193	71
Write-down of natural gas inventory	8	4	4
Equity in earnings of unconsolidated affiliates, net of distributions	(2)	(58)	8
Pension contributions	(97)	(91)	(82)
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	39	(256)	10
Inventory	(102)	(22)	27
Taxes receivable	(190)	7	(7)
Accounts payable	(3)	152	(6)
Fuel cost recovery	(41)	108	(52)
Non-trading derivatives, net	(34)	4	20
Margin deposits, net	(79)	16	53
Interest and taxes accrued	(23)	41	(62)
Net regulatory assets and liabilities	22	61	66
Other current assets	1	(2)	(12)
Other current liabilities	(20)	21	18
Other assets	9	(24)	(18)
Other liabilities	41	20	16
Other, net	13	24	17
Net cash provided by operating activities	1,397	1,613	1,860
Capital expenditures, net of acquisitions	(1,372)	(1,286)	(1,212)
Acquisitions, net of cash acquired	0	0	(360)
Decrease (increase) in restricted cash of transition and system restoration bond companies	(7)	17	(13)
Investment in unconsolidated affiliates	(1)	0	(5)
Cash contribution to Enable	0	(38)	0
Proceeds from sale of marketable securities	0	9	0
Other, net	(4)	(2)	(13)
Net cash used in investing activities	(1,384)	(1,300)	(1,603)
Increase (decrease) in short-term borrowings, net	10	5	(24)
Proceeds from (payments of) commercial paper, net	414	118	(285)
Proceeds from long-term debt	600	1,050	2,495
Payments of long-term debt	(537)	(1,573)	(1,590)
Cash paid for debt exchange and debt retirement	(1)	(7)	(69)
Debt issuance costs	(8)	(3)	(16)
Redemption of indexed debt securities	0	(8)	0
Payment of common stock dividends	(408)	(355)	(346)
Proceeds from issuance of common stock, net	1	4	4
Other, net	6	18	0
Net cash provided by (used in) financing activities	77	(751)	169
Net Increase (Decrease) in Cash and Cash Equivalents	90	(438)	426
Cash and Cash Equivalents at Beginning of Year	208	646	220
Cash and Cash Equivalents at End of Year	298	208	646
Cash Payments:
Interest, net of capitalized interest	434	475	556
Income taxes, net	192	35	46
Non-cash transactions:
Accounts payable related to capital expenditures	104	74	110
Formation of Enable	0		0
Exercise of SESH put to Enable		0	0
Exercise of SESH put to Enable [Member]
Non-cash transactions:
Exercise of SESH put to Enable	196
Formation of Enable [Member]
Non-cash transactions:
Formation of Enable		$ 4,252

XML

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013		Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statements of Consolidated Comprehensive Income
Net income	$ 176	[1]	$ 143	$ 107	$ 185	$ 113	$ 151	$ (100)	[2]	$ 147	$ 611	$ 311	$ 417
Other comprehensive income (loss):
Adjustment to pension and other postretirement plans (net of tax of $5, $25 and $2, respectively)											3	44	(2)
Reclassification of deferred loss from cash flow hedges realized in net income (net of tax)											1	1	0
Other comprehensive income (loss)											4	45	(2)
Comprehensive income											$ 615	$ 356	$ 415

[1] CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review.

[2] Effective May 1, 2013, CenterPoint Energy contributed CenterPoint Midstream to Enable. See Note 2(b) and Note 9 for further discussion on the formation of Enable and CenterPoint Energy’s investment in Enable, respectively.

XML

Fair Value Measurements

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

Assets and liabilities that are recorded at fair value in the Consolidated Balance Sheets are categorized based upon the level of judgment associated with the inputs used to measure their value. Hierarchical levels, as defined below and directly related to the amount of subjectivity associated with the inputs to fair valuations of these assets and liabilities, are as follows:

Level 1: Inputs are unadjusted quoted prices in active markets for identical assets or liabilities at the measurement date. The types of assets carried at Level 1 fair value generally are exchange-traded derivatives and equity securities.

Level 2: Inputs, other than quoted prices included in Level 1, are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar instruments in active markets, and inputs other than quoted prices that are observable for the asset or liability. Fair value assets and liabilities that are generally included in this category are derivatives with fair values based on inputs from actively quoted markets.  A market approach is utilized to value CenterPoint Energy’s Level 2 assets or liabilities.

Level 3: Inputs are unobservable for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. Unobservable inputs reflect CenterPoint Energy’s judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. CenterPoint Energy develops these inputs based on the best information available, including CenterPoint Energy’s own data. A market approach is utilized to value CenterPoint Energy’s Level 3 assets or liabilities. At December 31, 2014, CenterPoint Energy’s Level 3 assets and liabilities are comprised of physical forward contracts and options. Level 3 physical forward contracts are valued using a discounted cash flow model which includes illiquid forward price curve locations (ranging from $1.60 to $4.23 per one million British thermal units (Btu)) as an unobservable input. Level 3 options are valued through Black-Scholes (including forward start) option models which include option volatilities (ranging from 0 to 88%) as an unobservable input.  CenterPoint Energy’s Level 3 derivative assets and liabilities consist of both long and short positions (forwards and options) and their fair value is sensitive to forward prices and volatilities.  If forward prices decrease, CenterPoint Energy’s long forwards lose value whereas its short forwards gain in value.  If volatility decreases, CenterPoint Energy’s long options lose value whereas its short options gain in value.

CenterPoint Energy determines the appropriate level for each financial asset and liability on a quarterly basis and recognizes transfers between levels at the end of the reporting period.  For the year ended December 31, 2014, there were no transfers between Level 1 and 2. CenterPoint Energy also recognizes purchases of Level 3 financial assets and liabilities at their fair market value at the end of the reporting period.

The following tables present information about CenterPoint Energy’s assets and liabilities (including derivatives that are presented net) measured at fair value on a recurring basis as of December 31, 2014 and 2013, and indicate the fair value hierarchy of the valuation techniques utilized by CenterPoint Energy to determine such fair value.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Netting Adjustments (1)			Balance at December 31, 2014
	(in millions)
Assets
Corporate equities	$	932	$	—	$	—	$	—		$	932
Investments, including money market funds	54		—		—		—			54
Natural gas derivatives (2)	7		122		20		(18		)	131
Total assets	$	993	$	122	$	20	$	(18	)	$	1,117
Liabilities
Indexed debt securities derivative	$	—	$	541	$	—	$	—		$	541
Natural gas derivatives (2)	22		77		3		(82		)	20
Total liabilities	$	22	$	618	$	3	$	(82	)	$	561

(1) Amounts represent the impact of legally enforceable master netting arrangements that allow CenterPoint Energy to settle positive and negative positions and also include cash collateral of $64 million posted with the same counterparties.

(2) Natural gas derivatives include no material amounts related to physical forward transactions with Enable.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Netting Adjustments (1)			Balance at December 31, 2013
	(in millions)
Assets
Corporate equities	$	770	$	—	$	—	$	—		$	770
Investments, including money market funds	61		—		—		—			61
Natural gas derivatives (2)	5		33		5		(9		)	34
Total assets	$	836	$	33	$	5	$	(9	)	$	865
Liabilities
Indexed debt securities derivative	$	—	$	455	$	—	$	—		$	455
Natural gas derivatives	1		27		2		(9		)	21
Total liabilities	$	1	$	482	$	2	$	(9	)	$	476

(1) Amounts represent the impact of legally enforceable master netting arrangements that allow CenterPoint Energy to settle positive and negative positions and also include cash collateral of less than $1 million posted with the same counterparties.

(2) The (Level 2) Natural gas derivative assets of $33 million include $1 million related to physical forwards purchased from Enable.

The following tables present additional information about assets or liabilities, including derivatives that are measured at fair value on a recurring basis for which CenterPoint Energy has utilized Level 3 inputs to determine fair value:

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Derivative assets and liabilities, net
	Year Ended December 31,
	2014			2013			2012
	(in millions)
Beginning balance	$	3		$	2		$	6
Total gains	14			3			3
Total settlements	1			(3		)	(6		)
Transfers out of Level 3	—			—			(1		)
Transfers into Level 3	(1		)	1			—
Ending balance (1)	$	17		$	3		$	2
The amount of total gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at the reporting date	$	16		$	2		$	1

(1) During 2014, 2013 and 2012, CenterPoint Energy did not have significant Level 3 purchases or sales.

Estimated Fair Value of Financial Instruments

The fair values of cash and cash equivalents, investments in debt and equity securities classified as “trading” and short-term borrowings are estimated to be approximately equivalent to carrying amounts and have been excluded from the table below. The carrying amounts of non-trading derivative assets and liabilities and CenterPoint Energy’s 2.0% Zero-Premium Exchangeable Subordinated Notes due 2029 (ZENS) indexed debt securities derivative are stated at fair value and are excluded from the table below.  The fair value of each debt instrument is determined by multiplying the principal amount of each debt instrument by the market price. These assets and liabilities, which are not measured at fair value in the Condensed Consolidated Balance Sheets but for which the fair value is disclosed, would be classified as Level 1 or Level 2 in the fair value hierarchy.

	December 31, 2014				December 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(in millions)
Financial assets:
Notes receivable - affiliated companies	$	363	$	362	$	363	$	363
Financial liabilities:
Long-term debt	$	8,652	$	9,427	$	8,171	$	8,670

XML

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Feb. 17, 2015	Jun. 30, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	CENTERPOINT ENERGY INC
Entity Central Index Key	0001130310
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		429,802,703
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 10,907,234,073

XML

Unconsolidated Affiliates (Notes)

12 Months Ended

Dec. 31, 2014

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments and Joint Ventures Disclosure [Text Block]

Unconsolidated Affiliates

On May 1, 2013 (the Closing Date) CERC Corp., OGE Energy Corp. (OGE) and ArcLight Capital Partners, LLC (ArcLight) closed on the formation of Enable, and CenterPoint Energy recorded an equity method investment in Enable at the historical cost of the contributed net assets. See Note 2 for further information on the formation of Enable.

CenterPoint Energy’s maximum exposure to loss related to Enable, a VIE in which CenterPoint Energy is not the primary beneficiary, is limited to its equity investment as presented in the Consolidated Balance Sheet at December 31, 2014, CERC Corp.’s guarantee of collection of Enable’s $1.1 billion senior notes due 2019 and 2024 (Guaranteed Senior Notes) and other guarantees discussed in Note 14, CERC Corp.’s $363 million notes receivable from Enable and outstanding current accounts receivable from Enable. The $363 million of notes receivable from Enable bears interest at an annual rate of 2.10% to 2.45% and matures in 2017. CenterPoint Energy recorded interest income of $8 million and $5 million during the year ended December 31, 2014 and 2013, respectively, for interest earned on or after the Closing Date and had interest receivable from Enable of $4 million as of both December 31, 2014 and 2013 on its notes receivable from Enable.

Effective on the Closing Date, CenterPoint Energy and Enable entered into a Services Agreement, Employee Transition Agreement, Transitional Services Agreement and other agreements (collectively, Transition Agreements) whereby CenterPoint Energy agreed to provide certain support services to Enable such as accounting, legal, risk management and treasury functions for an initial term ending on April 30, 2016. Effective April 1, 2014, Enable’s general partner, CenterPoint Energy and OGE agreed to reduce certain governance related costs billed to Enable for transition services.  Effective December 31, 2014, Enable’s general partner, CenterPoint Energy and OGE agreed to terminate certain support services provided by CenterPoint Energy to Enable. CenterPoint Energy expects to terminate all remaining support services by April 2016.

CenterPoint Energy billed Enable for reimbursement of transitional services, including the costs of seconded employees, $163 million and $119 million during the years ended December 31, 2014 and 2013, respectively, under the Transition Agreements for transition services incurred on or after the Closing Date. Actual transitional services costs are recorded net of reimbursements received from Enable. CenterPoint Energy had accounts receivable from Enable of $28 million and $21 million as of December 31, 2014 and 2013, respectively, for amounts billed for transitional services, including the cost of seconded employees.

CenterPoint Energy provided seconded employees to Enable to support its operations for a term ending on December 31, 2014. Enable, at its discretion, had the right to select and offer employment to seconded employees from CenterPoint Energy. During the fourth quarter of 2014, Enable notified CenterPoint Energy that it selected seconded employees and provided employment offers to substantially all of the seconded employees from CenterPoint Energy. Substantially all of the seconded employees became employees of Enable effective January 1, 2015. See Note 6 for additional information.

On April 16, 2014, Enable completed its initial public offering (IPO) of 28,750,000 common units, at a price of $20.00 per unit, which included 3,750,000 common units sold by ArcLight pursuant to an over-allotment option that was fully exercised by the underwriters. Enable received $464 million in net proceeds from the sale of the units, after deducting underwriting fees, structuring fees and other offering costs. In connection with Enable’s IPO, a portion of CenterPoint Energy’s common units were converted into subordinated units, as discussed further below. Subsequent to the IPO, Enable continues to be controlled jointly by CenterPoint Energy and OGE.

As a result of Enable’s IPO, CenterPoint Energy’s limited partner interest in Enable was reduced from approximately 58.3% to approximately 54.7%. CenterPoint Energy accounted for the dilution of its investment in Enable as a result of Enable’s IPO as a failed partial sale of in-substance real estate. CenterPoint Energy did not receive any cash from Enable’s IPO and, as such, CenterPoint Energy did not recognize a gain or loss. CenterPoint Energy’s basis difference in Enable was reduced for the impact of the Enable IPO.

In accordance with the Enable formation agreements, CenterPoint Energy had certain put rights, and Enable had certain call rights, exercisable with respect to the 25.05% interest in Southeast Supply Header, LLC (SESH) retained by CenterPoint Energy on the Closing Date, under which CenterPoint Energy would contribute its retained interest in SESH, in exchange for a specified number of limited partner common units in Enable and a cash payment, payable either from CenterPoint Energy to Enable or from Enable to CenterPoint Energy, to the extent of changes in the value of SESH subject to certain restrictions. Specifically, the rights were and are exercisable with respect to (1) a 24.95% interest in SESH (24.95% Put), which closed on May 30, 2014 as discussed below and (2) a 0.1% interest in SESH, which may be exercised no earlier than June 2015 for 25,341 common units in Enable.

On May 30, 2014, CenterPoint Energy closed its 24.95% Put and contributed to Enable its 24.95% interest in SESH in exchange for 6,322,457 common units of Enable, which increased CenterPoint Energy’s limited partner interest in Enable from approximately 54.7% to approximately 55.4%. No cash payment was required to be made pursuant to the Enable formation agreements in connection with CenterPoint Energy’s exercise of the 24.95% Put. CenterPoint Energy accounted for the contribution of its 24.95% interest in SESH to Enable in exchange for common units of Enable as a non-monetary transaction of in-substance real estate equity method investments. As such, CenterPoint Energy recorded the 6,322,457 common units at the historical cost of the contributed 24.95% interest in SESH of $196 million and recorded no gain or loss in connection with its exercise of the 24.95% Put. As a result, CenterPoint Energy’s basis difference in Enable was reduced for the impact of its exercise of the 24.95% Put.

CenterPoint Energy incurred natural gas expenses, including transportation and storage costs, of $130 million and $123 million during the year ended December 31, 2014 and 2013, respectively, for transactions with Enable occurring on or after the Closing Date. CenterPoint Energy had accounts payable to Enable of $23 million and $22 million at December 31, 2014 and 2013, respectively, from such transactions.

As of December 31, 2014, CenterPoint Energy held an approximate 55.4% limited partner interest in Enable consisting of 94,126,366 common units and 139,704,916 subordinated units and a 0.1% interest in SESH. The principal difference between Enable common units and subordinated units is that in any quarter during the subordination period, holders of the subordinated units are not entitled to receive any distribution of available cash until the common units have received the minimum quarterly distribution plus any arrearages in the payment of the minimum quarterly distribution from prior quarters. If Enable does not pay distributions on its subordinated units, the subordinated units will not accrue arrearages for those unpaid distributions. At the end of the subordination period, CenterPoint Energy’s subordinated units in Enable will be converted to common units in Enable on a one-for-one basis.

CenterPoint Energy evaluates its equity method investments for impairment when factors indicate that a decrease in value of its investment has occurred and the carrying amount of its investment may not be recoverable.  An impairment loss is recognized in earnings when an impairment is deemed to be other than temporary.  The carrying value of CenterPoint Energy’s investment in Enable is $19.33 per unit. As of December 31, 2014, Enable’s common unit price closed at $19.39 (approximately $14 million above carrying value). The lowest close price for Enable’s common units in January 2015 was $17.34 (approximately $465 million below carrying value). CenterPoint Energy performed an analysis of its investment in Enable as of December 31, 2014.  Based on that analysis, CenterPoint Energy believes that the decline in the value of its investment is temporary, and that CenterPoint Energy will recover the value of its investment of $4.5 billion.

Investment in Unconsolidated Affiliates:

	Year Ended December 31,
	2014		2013
	(in millions)
Enable	$	4,520	$	4,319
SESH (1)	1		199
Total	$	4,521	$	4,518

(1) On May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

Equity in Earnings of Unconsolidated Affiliates, net:

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Enable (1)	$	303	$	173	$	—
SESH (2)	5		15		26
Waskom (3)	—		—		5
Total	$	308	$	188	$	31

(1) On May 1, 2013, CenterPoint Energy formed Enable with OGE and ArcLight.

(2) On each of May 1, 2013 and May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

(3) On July 31, 2012, Waskom became a wholly owned subsidiary of CenterPoint Energy. Beginning on August 1, 2012, Waskom’s operating results are consolidated on the Statements of Consolidated Income. On May 1, 2013, CenterPoint Energy contributed Waskom to Enable.

Summarized consolidated income information for Enable is as follows:

	Year Ended December 31,
	2014		2013 (1)
	(in millions)
Operating revenues	$	3,367	$	2,123
Cost of sales, excluding depreciation and amortization	1,914		1,241
Operating income	586		322
Net income attributable to Enable	530		289
CenterPoint Energy’s approximate interest	$	298	$	168
Basis difference accretion	5		5
CenterPoint Energy’s equity in earnings, net	$	303	$	173

(1) The amounts included in this column represent the eight month period from formation of Enable on May 1, 2013 through December 31, 2013.

Summarized consolidated balance sheet information for Enable is as follows:

	December 31,
	2014			2013
	(in millions)
Current assets	$	438		$	549
Non-current assets	11,399			10,683
Current liabilities	671			720
Non-current liabilities	2,343			2,331
Non-controlling interest	31			33
Enable partners’ capital	8,792			8,148
CenterPoint Energy’s ownership interest in Enable’s partner capital	$	4,869		$	4,753
CenterPoint Energy’s basis difference attributable to goodwill (1)	(217		)	(229		)
CenterPoint Energy’s accretable basis difference (2)	(132		)	(205		)
CenterPoint Energy’s total basis difference	(349		)	(434		)
CenterPoint Energy’s investment in Enable	$	4,520		$	4,319

(1) The difference relates to CenterPoint Energy’s proportionate share of Enable’s goodwill arising from its acquisition of Enogex, and therefore will be recognized by CenterPoint Energy upon dilution or disposition of its interest in Enable.

(2) The difference will be recognized by CenterPoint Energy over 30 years beginning May 1, 2013. CenterPoint Energy will also adjust the accretable basis difference for dilution or disposition of its interest in Enable.

Enable concluded that the formation of Enable is considered a business combination, and CenterPoint Midstream is the acquirer for accounting purposes.  Under this method, the fair value of the consideration paid by CenterPoint Midstream for Enogex was allocated to the assets acquired and liabilities assumed on the Closing Date based on their fair value.  Enogex’s assets, liabilities and equity were accordingly adjusted to estimated fair value as of May 1, 2013.  Determining the fair value of assets and liabilities is judgmental in nature and involves the use of significant estimates and assumptions.  Enable used appraisers to assist in the determination of the estimated fair value of certain assets and liabilities contributed by Enogex.

Distributions Received from Unconsolidated Affiliates:

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Enable (1)	$	298	$	106	$	—
SESH (2)	7		23		32
Waskom (3)	—		—		7
Total	$	305	$	129	$	39

(1) On May 1, 2013, CenterPoint Energy formed Enable with OGE and ArcLight.

(2) On each of May 1, 2013 and May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

(3) On July 31, 2012, Waskom became a wholly owned subsidiary of CenterPoint Energy. Beginning on August 1, 2012, Waskom’s operating results are consolidated on the Statements of Consolidated Income. On May 1, 2013, CenterPoint Energy contributed Waskom to Enable.

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STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (Parenthetical) STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (Parentheticals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Adjustment to pension and other postretirement plans (net of tax of $5, $25 and $2, respectively	$ 5	$ 25	$ 2

XML

Property, Plant and Equipment

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

(a) Property, Plant and Equipment

Property, plant and equipment includes the following:

	Weighted Average Useful Lives	December 31,
	(Years)	2014		2013
		(in millions)
Electric Transmission & Distribution	31	$	9,393	$	8,741
Natural Gas Distribution	33	5,235		4,694
Energy Services	27	84		82
Other property	22	646		621
Total		15,358		14,138
Accumulated depreciation and amortization:
Electric Transmission & Distribution		3,050		2,907
Natural Gas Distribution		1,493		1,324
Energy Services		31		28
Other property		282		286
Total accumulated depreciation and amortization		4,856		4,545
Property, plant and equipment, net		$	10,502	$	9,593

(b) Depreciation and Amortization

The following table presents depreciation and amortization expense for 2014, 2013 and 2012 (in millions).

	2014		2013		2012
Depreciation expense	$	521	$	531	$	562
Amortization expense	492		423		488
Total depreciation and amortization expense	$	1,013	$	954	$	1,050

(c) Asset Retirement Obligations

A reconciliation of the changes in the asset retirement obligation (ARO) liability is as follows (in millions):

	December 31,
	2014		2013
Beginning balance	$	134	$	164
Accretion expense	5		5
Revisions in estimates of cash flows	37		(35		)
Ending balance	$	176	$	134

CenterPoint Energy recorded asset retirement obligations associated with the removal of asbestos and asbestos-containing material in its buildings, including substation building structures. CenterPoint Energy also recorded asset retirement obligations relating to gas pipelines abandoned in place, treated wood poles for electric distribution, distribution transformers containing PCB (also known as Polychlorinated Biphenyl), and underground fuel storage tanks. The estimates of future liabilities were developed using historical information, and where available, quoted prices from outside contractors.

The increase of $37 million in the ARO from the revision of estimate in 2014 is primarily attributable to a reduction of the estimated service lives of steel and plastic pipe. The decrease of $35 million in the ARO from the revision of estimate in 2013 is primarily attributable to a decrease in the future expected cash flows associated with the retirement of steel pipe.

XML

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

(a) Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

(b) Principles of Consolidation

The accounts of CenterPoint Energy and its wholly owned and majority owned subsidiaries are included in the consolidated financial statements. All intercompany transactions and balances are eliminated in consolidation. CenterPoint Energy generally uses the equity method of accounting for investments in entities in which CenterPoint Energy has an ownership interest between 20% and 50% and exercises significant influence. CenterPoint Energy also uses the equity method for investments in which it has ownership percentages greater than 50%, when it exercises significant influence, does not have control and is not considered the primary beneficiary, if applicable.

On March 14, 2013, CenterPoint Energy entered into a Master Formation Agreement (MFA) with OGE Energy Corp. (OGE) and affiliates of ArcLight Capital Partners, LLC (ArcLight), pursuant to which CenterPoint Energy, OGE and ArcLight agreed to form Enable as a private limited partnership. On May 1, 2013, the parties closed on the formation of Enable. In connection with the closing (i) CERC Corp. converted its direct wholly owned subsidiary, CenterPoint Energy Field Services, LLC, a Delaware limited liability company (CEFS), into a Delaware limited partnership that became Enable, (ii) CERC Corp. contributed to Enable its equity interests in each of CenterPoint Energy Gas Transmission Company, LLC, which has been subsequently renamed Enable Gas Transmission, LLC (EGT), CenterPoint Energy - Mississippi River Transmission, LLC, which has been subsequently renamed Enable Mississippi River Transmission, LLC (MRT), certain of its other midstream subsidiaries (Other CNP Midstream Subsidiaries), and a 24.95% interest in Southeast Supply Header, LLC (SESH and, collectively with CEFS, EGT, MRT and Other CNP Midstream Subsidiaries, CenterPoint Midstream), and (iii) OGE and ArcLight indirectly contributed 100% of the equity interests in Enogex LLC, which has been subsequently renamed Enable Oklahoma Intrastate Transmission, LLC (Enogex), to Enable.

The formation of Enable by CenterPoint Energy was considered a contribution of in-substance real estate to a limited partnership as the businesses are composed of, and reliant upon, substantial real estate assets and integral equipment. Real estate assets and integral equipment primarily include gas transmission pipelines, compressor station equipment, rights of way, storage and processing assets and long-term customer contracts. Accordingly, CenterPoint Energy did not recognize a gain or loss upon contribution and recorded its investment in Enable using the equity method of accounting based on the historical cost of the contributed assets and liabilities as of May 1, 2013 (Closing Date). Approximately $5.8 billion of assets (which includes $4.7 billion in property, plant and equipment, net, $629 million in goodwill and $197 million for the 24.95% investment in SESH) and $1.5 billion of liabilities (which includes a term loan and the indebtedness owed to CERC of $1.05 billion and $363 million, respectively) were contributed by CERC Corp. CenterPoint Energy has the ability to significantly influence the operating and financial policies of, but not solely control, Enable and, accordingly, recorded an equity method investment, at the historical costs of net assets contributed, of $4.3 billion in Enable on the Closing Date. Pursuant to the MFA, CenterPoint Energy retained certain assets and liabilities historically held by CenterPoint Midstream such as balances relating to federal income taxes and benefit plan obligations.

Under the equity method, CenterPoint Energy adjusts its investment in Enable each period for contributions made, distributions received, CenterPoint Energy’s share of Enable’s comprehensive income and accretion of basis differences, as appropriate. CenterPoint Energy evaluates its equity method investments for impairment when events or changes in circumstances indicate there is a loss in value of the investment that is other than a temporary decline.

CenterPoint Energy’s investment in Enable is considered to be a variable interest entity (VIE) because the power to direct the activities that most significantly impact Enable’s economic performance does not reside with the holders of equity investment at risk. However, CenterPoint Energy is not considered the primary beneficiary of Enable since it does not have the power to direct the activities of Enable that are considered most significant to the economic performance of Enable.

As of December 31, 2014, CERC Corp. and OGE held approximately 55.4% and 26.3%, respectively, of the limited partner interests in Enable. Enable is controlled jointly by CERC Corp. and OGE, and each own 50% of the management rights in the general partner of Enable.

As of December 31, 2014, CERC Corp. and OGE also own a 40% and 60% interest, respectively, in the incentive distribution rights held by the general partner of Enable. Enable is expected to pay a minimum quarterly distribution of $0.2875 per unit on its outstanding units to the extent it has sufficient cash from operations after establishment of cash reserves and payment of fees and expenses, including payments to its general partner and its affiliates, within 45 days after the end of each quarter. If cash distributions to Enable’s unitholders exceed $0.330625 per unit in any quarter, the general partner will receive increasing percentages or incentive distributions rights, up to 50%, of the cash Enable distributes in excess of that amount. In certain circumstances the general partner of Enable will have the right to reset the minimum quarterly distribution and the target distribution levels at which the incentive distributions receive increasing percentages to higher levels based on Enable’s cash distributions at the time of the exercise of this reset election.

Prior to July 2012, CenterPoint Energy owned a 50% interest in Waskom Gas Processing Company (Waskom), a Texas general partnership, which owns and operates a natural gas processing plant and natural gas gathering assets. On July 31, 2012, CenterPoint Energy purchased the 50% interest that it did not already own in Waskom, as well as other gathering and related assets from a third-party for approximately $273 million. The purchase of the 50% interest in Waskom was determined to be a business combination achieved in stages, and as such CenterPoint Energy recorded a pre-tax gain of approximately $136 million on July 31, 2012, which is the result of remeasuring its original 50% interest in Waskom to fair value.

Other investments, excluding marketable securities, are carried at cost.

As of December 31, 2014, CenterPoint Energy had VIEs consisting of transition and system restoration bond companies, which it consolidates. The consolidated VIEs are wholly owned bankruptcy remote special purpose entities that were formed specifically for the purpose of securitizing transition and system restoration related property. Creditors of CenterPoint Energy have no recourse to any assets or revenues of the transition and system restoration bond companies. The bonds issued by these VIEs are payable only from and secured by transition and system restoration property and the bondholders have no recourse to the general credit of CenterPoint Energy.

(c) Revenues

CenterPoint Energy records revenue for electricity delivery and natural gas sales and services under the accrual method and these revenues are recognized upon delivery to customers. Electricity deliveries not billed by month-end are accrued based on actual advanced metering system data, daily supply volumes and applicable rates. Natural gas sales not billed by month-end are accrued based upon estimated purchased gas volumes, estimated lost and unaccounted for gas and currently effective tariff rates.

(d) Long-lived Assets and Intangibles

CenterPoint Energy records property, plant and equipment at historical cost. CenterPoint Energy expenses repair and maintenance costs as incurred.

CenterPoint Energy periodically evaluates long-lived assets, including property, plant and equipment, and specifically identifiable intangibles, when events or changes in circumstances indicate that the carrying value of these assets may not be recoverable. The determination of whether an impairment has occurred is based on an estimate of undiscounted cash flows attributable to the assets compared to the carrying value of the assets.

(e) Regulatory Assets and Liabilities

CenterPoint Energy applies the guidance for accounting for regulated operations to the Electric Transmission & Distribution business segment and the Natural Gas Distribution business segment. CenterPoint Energy’s rate-regulated subsidiaries may collect revenues subject to refund pending final determination in rate proceedings. In connection with such revenues, estimated rate refund liabilities are recorded which reflect management’s current judgment of the ultimate outcomes of the proceedings.

CenterPoint Energy’s rate-regulated businesses recognize removal costs as a component of depreciation expense in accordance with regulatory treatment. As of December 31, 2014 and 2013, these removal costs of $958 million and $941 million, respectively, are classified as regulatory liabilities in CenterPoint Energy’s Consolidated Balance Sheets. In addition, a portion of the amount of removal costs that relate to asset retirement obligations has been reclassified from a regulatory liability to an asset retirement liability in accordance with accounting guidance for asset retirement obligations.

(f) Depreciation and Amortization Expense

Depreciation and amortization is computed using the straight-line method based on economic lives or regulatory-mandated recovery periods. Amortization expense includes amortization of regulatory assets and other intangibles.

(g) Capitalization of Interest and Allowance for Funds Used During Construction

Interest and allowance for funds used during construction (AFUDC) are capitalized as a component of projects under construction and are amortized over the assets’ estimated useful lives once the assets are placed in service. AFUDC represents the composite interest cost of borrowed funds and a reasonable return on the equity funds used for construction for subsidiaries that apply the guidance for accounting for regulated operations. During 2014, 2013 and 2012, CenterPoint Energy capitalized interest and AFUDC of $11 million, $11 million and $9 million, respectively. During 2014, 2013 and 2012, CenterPoint Energy recorded AFUDC equity of $14 million, $8 million and $6 million, respectively, which is included in Other Income in its Statements of Consolidated Income.

(h) Income Taxes

CenterPoint Energy uses the asset and liability method of accounting for deferred income taxes. Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. A valuation allowance is established against deferred tax assets for which management believes realization is not considered to be more likely than not. CenterPoint Energy recognizes interest and penalties as a component of income tax expense.

(i) Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are recorded at the invoiced amount and do not bear interest. It is the policy of management to review the outstanding accounts receivable monthly, as well as the bad debt write-offs experienced in the past, and establish an allowance for doubtful accounts. Account balances are charged off against the allowance when management determines it is probable the receivable will not be recovered. The provision for doubtful accounts in CenterPoint Energy’s Statements of Consolidated Income for 2014, 2013 and 2012 was $22 million, $21 million and $16 million, respectively.

(j) Inventory

Inventory consists principally of materials and supplies and natural gas. Materials and supplies are valued at the lower of average cost or market.  Materials and supplies are recorded to inventory when purchased and subsequently charged to expense or capitalized to plant when installed. Natural gas inventories of CenterPoint Energy’s Energy Services business segment are valued at the lower of average cost or market. Natural gas inventories of CenterPoint Energy’s Natural Gas Distribution business segment are primarily valued at weighted average cost. During 2014, 2013 and 2012, CenterPoint Energy recorded $8 million, $4 million and $4 million, respectively, in write-downs of natural gas inventory to the lower of average cost or market.

	December 31,
	2014		2013
Materials and supplies	$	168	$	140
Natural gas	211		145
Total inventory	$	379	$	285

(k) Derivative Instruments

CenterPoint Energy is exposed to various market risks. These risks arise from transactions entered into in the normal course of business.  CenterPoint Energy utilizes derivative instruments such as physical forward contracts, swaps and options to mitigate the impact of changes in commodity prices and weather on its operating results and cash flows. Such derivatives are recognized in CenterPoint Energy’s Consolidated Balance Sheets at their fair value unless CenterPoint Energy elects the normal purchase and sales exemption for qualified physical transactions. A derivative may be designated as a normal purchase or normal sale if the intent is to physically receive or deliver the product for use or sale in the normal course of business.

CenterPoint Energy has a Risk Oversight Committee composed of corporate and business segment officers that oversees all commodity price, weather and credit risk activities, including CenterPoint Energy’s marketing, risk management services and hedging activities. The committee’s duties are to establish CenterPoint Energy’s commodity risk policies, allocate board-approved commercial risk limits, approve the use of new products and commodities, monitor positions and ensure compliance with CenterPoint Energy’s risk management policies and procedures and limits established by CenterPoint Energy’s board of directors.

CenterPoint Energy’s policies prohibit the use of leveraged financial instruments. A leveraged financial instrument, for this purpose, is a transaction involving a derivative whose financial impact will be based on an amount other than the notional amount or volume of the instrument.

(l) Investments in Other Debt and Equity Securities

CenterPoint Energy reports securities classified as trading at estimated fair value in its Consolidated Balance Sheets, and any unrealized holding gains and losses are recorded as other income (expense) in its Statements of Consolidated Income.

(m) Environmental Costs

CenterPoint Energy expenses or capitalizes environmental expenditures, as appropriate, depending on their future economic benefit. CenterPoint Energy expenses amounts that relate to an existing condition caused by past operations that do not have future economic benefit. CenterPoint Energy records undiscounted liabilities related to these future costs when environmental assessments and/or remediation activities are probable and the costs can be reasonably estimated.

(n) Statements of Consolidated Cash Flows

For purposes of reporting cash flows, CenterPoint Energy considers cash equivalents to be short-term, highly-liquid investments with maturities of three months or less from the date of purchase. In connection with the issuance of transition bonds and system restoration bonds, CenterPoint Energy was required to establish restricted cash accounts to collateralize the bonds that were issued in these financing transactions. These restricted cash accounts are not available for withdrawal until the maturity of the bonds and are not included in cash and cash equivalents. These restricted cash accounts of $47 million and $41 million at December 31, 2014 and 2013, respectively, are included in other current assets in CenterPoint Energy’s Consolidated Balance Sheets. Cash and cash equivalents included $290 million and $207 million at December 31, 2014 and 2013, respectively, that was held by CenterPoint Energy’s transition and system restoration bond subsidiaries solely to support servicing the transition and system restoration bonds.

CenterPoint Energy considers distributions received from equity method investments which do not exceed cumulative equity in earnings subsequent to the date of investment to be a return on investment and classifies these distributions as operating activities in the Statements of Consolidated Cash Flows. CenterPoint Energy considers distributions received from equity method investments in excess of cumulative equity in earnings subsequent to the date of investment to be a return of investment and classifies these distributions as investing activities in the Statements of Consolidated Cash Flows.

(o) New Accounting Pronouncements

In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (ASU 2014-08), which significantly changes the existing accounting guidance on discontinued operations. Under ASU 2014-08, only those disposals of components of an entity that represent a strategic shift that has (or will have) a major effect on an entity’s operations and financial results should be reported as a discontinued operation.  ASU 2014-08 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2014.  ASU 2014-08 should be applied to components classified as held for sale after its effective date. Early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The adoption is expected to reduce the number of disposals that meet the definition of a discontinued operation.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (ASU 2014-09), which supersedes most current revenue recognition guidance. ASU 2014-09 provides a comprehensive new revenue recognition model that requires revenue to be recognized in a manner that depicts the transfer of goods or services to a customer at an amount that reflects the consideration expected to be received in exchange for those goods or services. ASU 2014-09 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. Early adoption is not permitted, and entities have the option of using either a full retrospective or a modified retrospective adoption approach. Accordingly, CenterPoint Energy will adopt ASU 2014-09 on January 1, 2017, and is currently evaluating the impact that this standard will have on its financial position, results of operations, cash flows and disclosures.

In November 2014, the FASB issued ASU No. 2014-16, Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity (ASU 2014-16).  ASU 2014-16 clarifies how current guidance should be interpreted in evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. Specifically, the amendments clarify that an entity should consider all relevant terms and features, including the embedded derivative feature being evaluated for bifurcation, in evaluating the nature of a host contract. ASU 2014-16 is effective for fiscal years and interim periods beginning after December 15, 2015. CenterPoint Energy is currently assessing the impact, if any, that this standard will have on its financial position, results of operations, cash flows and disclosures.

In January 2015, the FASB issued ASU No. 2015-01, Income Statement-Extraordinary and Unusual Items (Subtopic 225-20)-Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items (ASU 2015-01), which eliminates the concept of extraordinary items. ASU 2015-01 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015, and may be applied either prospectively or retrospectively. CenterPoint Energy will adopt ASU 2015-01 on January 1, 2016 and does not anticipate the adoption to have a material impact on its consolidated financial statements.

Management believes that other recently issued standards, which are not yet effective, will not have a material impact on CenterPoint Energy’s consolidated financial position, results of operations or cash flows upon adoption.

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

(a) Natural Gas Supply Commitments

Natural gas supply commitments include natural gas contracts related to CenterPoint Energy’s Natural Gas Distribution and Energy Services business segments, which have various quantity requirements and durations, that are not classified as non-trading derivative assets and liabilities in CenterPoint Energy’s Consolidated Balance Sheets as of December 31, 2014 and 2013 as these contracts meet an exception as “normal purchases contracts” or do not meet the definition of a derivative. Natural gas supply commitments also include natural gas transportation contracts that do not meet the definition of a derivative. As of December 31, 2014, minimum payment obligations for natural gas supply commitments are approximately $696 million in 2015, $605 million in 2016, $551 million in 2017, $507 million in 2018, $255 million in 2019 and $114 million after 2019.

(b) Asset Management Agreements

NGD has asset management agreements (AMAs) associated with its utility distribution service in Arkansas, Louisiana, Mississippi, Oklahoma and Texas. Generally, these AMAs are contracts between NGD and an asset manager that are intended to transfer the working capital obligation and maximize the utilization of the assets.  In these AMAs, NGD agreed to release transportation and storage capacity to other parties to manage gas storage, supply and delivery arrangements for NGD and to use the released capacity for other purposes when it is not needed for NGD. NGD is compensated by the asset manager through payments made over the life of the AMAs based in part on the results of the asset optimization. NGD has an obligation to purchase its winter storage requirements that have been released to the asset manager under these AMAs. The AMAs have varying terms, the longest of which expires in 2018.

(c) Lease Commitments

The following table sets forth information concerning CenterPoint Energy’s obligations under non-cancelable long-term operating leases at December 31, 2014, which primarily consist of rental agreements for building space, data processing equipment, compression equipment and rights of way (in millions):

2015	$	5
2016	4
2017	3
2018	2
2019	2
2020 and beyond	7
Total	$	23

Total lease expense for all operating leases was $11 million, $21 million and $27 million during 2014, 2013 and 2012, respectively.

(d) Legal, Environmental and Other Regulatory Matters

Legal Matters

Gas Market Manipulation Cases.  CenterPoint Energy, CenterPoint Houston or their predecessor, Reliant Energy, Incorporated (Reliant Energy), and certain of their former subsidiaries have been named as defendants in certain lawsuits described below. Under a master separation agreement between CenterPoint Energy and a former subsidiary, Reliant Resources, Inc. (RRI), CenterPoint Energy and its subsidiaries are entitled to be indemnified by RRI and its successors for any losses, including certain attorneys’ fees and other costs, arising out of these lawsuits.  In May 2009, RRI sold its Texas retail business to a subsidiary of NRG and RRI changed its name to RRI Energy, Inc. In December 2010, Mirant Corporation merged with and became a wholly owned subsidiary of RRI, and RRI changed its name to GenOn Energy, Inc. (GenOn). In December 2012, NRG acquired GenOn through a merger in which GenOn became a wholly owned subsidiary of NRG. None of the sale of the retail business, the merger with Mirant Corporation, or the acquisition of GenOn by NRG alters RRI’s (now GenOn’s) contractual obligations to indemnify CenterPoint Energy and its subsidiaries, including CenterPoint Houston, for certain liabilities, including their indemnification obligations regarding the gas market manipulation litigation, nor does it affect the terms of existing guarantee arrangements for certain GenOn gas transportation contracts discussed below.

A large number of lawsuits were filed against numerous gas market participants in a number of federal and western state courts in connection with the operation of the natural gas markets in 2000-2002. CenterPoint Energy and its affiliates have since been released or dismissed from all but one such case. CenterPoint Energy Services, Inc. (CES), a subsidiary of CERC Corp., is a defendant in a case now pending in federal court in Nevada alleging a conspiracy to inflate Wisconsin natural gas prices in 2000-2002.  In July 2011, the court issued an order dismissing the plaintiffs’ claims against other defendants in the case, each of whom had demonstrated Federal Energy Regulatory Commission jurisdictional sales for resale during the relevant period, based on federal preemption, and stayed the remainder of the case pending outcome of the appeals.  The plaintiffs appealed this ruling to the United States Court of Appeals for the Ninth Circuit, which reversed the trial court’s dismissal of the plaintiffs’ claims. In August 2013, the other defendants filed a petition for review with the U.S. Supreme Court, which the court granted on July 1, 2014. Four amicus briefs favorable to our co-defendants were filed by the United States, Interstate Natural Gas Association of America, et. al., Washington Legal Foundation and Noble America Corporation, et. al. The Supreme Court heard arguments on January 12, 2015, and a ruling is expected by summer 2015. CenterPoint Energy believes that CES is not a proper defendant in this case and will continue to pursue a dismissal.  CenterPoint Energy does not expect the ultimate outcome of this matter to have a material adverse effect on its financial condition, results of operations or cash flows.

Environmental Matters

Manufactured Gas Plant Sites. CERC and its predecessors operated manufactured gas plants (MGPs) in the past.  There are seven MGP sites in CERC’s Minnesota service territory.  CERC believes it never owned or operated, and therefore has no liability with respect to, two of these sites.  With respect to two other sites, CERC has completed state ordered remediation, other than ongoing monitoring and water treatment.

At December 31, 2014, CERC had recorded a liability of $7 million for remediation of these Minnesota sites. The estimated range of possible remediation costs for the sites for which CERC believes it may have responsibility was $5 million to $29 million based on remediation continuing for 30 to 50 years. The cost estimates are based on studies of a site or industry average costs for remediation of sites of similar size. The actual remediation costs will be dependent upon the number of sites to be remediated, the participation of other potentially responsible parties (PRPs), if any, and the remediation methods used. As of December 31, 2014, CERC had collected $4 million from insurance companies to be used for future environmental remediation.

In addition to the Minnesota sites, the United States Environmental Protection Agency and other regulators have investigated MGP sites that were owned or operated by CERC or may have been owned by one of its former affiliates. CERC and CenterPoint Energy do not expect the ultimate outcome of these investigations to have a material adverse effect on the financial condition, results of operations or cash flows of either CenterPoint Energy or CERC.

Asbestos. Some facilities owned by CenterPoint Energy contain or have contained asbestos insulation and other asbestos-containing materials. CenterPoint Energy or its subsidiaries have been named, along with numerous others, as a defendant in lawsuits filed by a number of individuals who claim injury due to exposure to asbestos. Some of the claimants have worked at locations owned by subsidiaries of CenterPoint Energy, but most existing claims relate to facilities previously owned by CenterPoint Energy’s subsidiaries, some of which are currently owned by an affiliate of NRG. In 2004 and early 2005, CenterPoint Energy sold its generating business, to which most of these claims relate, to a company which is now an affiliate of NRG. Under the terms of the arrangements regarding separation of the generating business from CenterPoint Energy and its sale of that business, ultimate financial responsibility for uninsured losses from claims relating to the generating business has been assumed by the NRG affiliate, but CenterPoint Energy has agreed to continue to defend such claims to the extent they are covered by insurance maintained by CenterPoint Energy, subject to reimbursement of the costs of such defense by the NRG affiliate. CenterPoint Energy anticipates that additional claims like those received may be asserted in the future. Although their ultimate outcome cannot be predicted at this time, CenterPoint Energy intends to continue vigorously contesting claims that it does not consider to have merit and, based on its experience to date, does not expect these matters, either individually or in the aggregate, to have a material adverse effect on CenterPoint Energy’s financial condition, results of operations or cash flows.

Other Environmental. From time to time CenterPoint Energy identifies the presence of environmental contaminants on property where its subsidiaries conduct or have conducted operations.  Other such sites involving contaminants may be identified in the future.  CenterPoint Energy has and expects to continue to remediate identified sites consistent with its legal obligations. From time to time CenterPoint Energy has received notices from regulatory authorities or others regarding its status as a PRP in connection with sites found to require remediation due to the presence of environmental contaminants. In addition, CenterPoint Energy has been named from time to time as a defendant in litigation related to such sites. Although the ultimate outcome of such matters cannot be predicted at this time, CenterPoint Energy does not expect, based on its experience to date, these matters, either individually or in the aggregate, to have a material adverse effect on CenterPoint Energy’s financial condition, results of operations or cash flows.

Other Proceedings

CenterPoint Energy is involved in other legal, environmental, tax and regulatory proceedings before various courts, regulatory commissions and governmental agencies regarding matters arising in the ordinary course of business. From time to time, CenterPoint Energy is also a defendant in legal proceedings with respect to claims brought by various plaintiffs against broad groups of participants in the energy industry. Some of these proceedings involve substantial amounts. CenterPoint Energy regularly analyzes current information and, as necessary, provides accruals for probable liabilities on the eventual disposition of these matters. CenterPoint Energy does not expect the disposition of these matters to have a material adverse effect on CenterPoint Energy’s financial condition, results of operations or cash flows.

(e) Guarantees

Prior to the distribution of CenterPoint Energy’s ownership in RRI to its shareholders, CERC had guaranteed certain contractual obligations of what became RRI’s trading subsidiary.  When the companies separated, RRI agreed to secure CERC against obligations under the guarantees RRI had been unable to extinguish by the time of separation.  Pursuant to such agreement, as amended in December 2007, RRI (now GenOn) agreed to provide to CERC cash or letters of credit as security against CERC’s obligations under its remaining guarantees for demand charges under certain gas transportation agreements if and to the extent changes in market conditions expose CERC to a risk of loss on those guarantees based on an annual calculation, with any required collateral to be posted each December.  The undiscounted maximum potential payout of the demand charges under these transportation contracts, which will be in effect until 2018, was approximately $42 million as of December 31, 2014.  Based on market conditions in the fourth quarter of 2014 at the time the most recent annual calculation was made under the agreement, GenOn was not obligated to post any security. If GenOn should fail to perform the contractual obligations, CERC could have to honor its guarantee and, in such event, any collateral then provided as security may be insufficient to satisfy CERC’s obligations.

CenterPoint Energy has provided guarantees (CenterPoint Midstream Guarantees) with respect to the performance of certain obligations of Enable under long-term gas gathering and treating agreements with an indirect wholly owned subsidiary of Encana Corporation and an indirect wholly owned subsidiary of Royal Dutch Shell plc. As of December 31, 2014, CenterPoint Energy had guaranteed Enable’s obligations up to an aggregate amount of $100 million under these agreements. Under the terms of the omnibus agreement entered into in connection with the closing of the formation of Enable, Enable and CenterPoint Energy have agreed to use commercially reasonable efforts and cooperate with each other to terminate the CenterPoint Midstream Guarantees and to release CenterPoint Energy from such guarantees by causing Enable or one of its subsidiaries to enter into substitute guarantees or to assume the CenterPoint Midstream Guarantees as applicable.

CERC Corp. has also provided a guarantee of collection of $1.1 billion of Enable’s Guaranteed Senior Notes. This guarantee is subordinated to all senior debt of CERC Corp. and is subject to automatic release on May 1, 2016.

The fair value of these guarantees is not material.

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Indexed Debt Securities (ZENS) and Securities Related to ZENS Indexed Debt Securities (ZENS) and Securities Related to ZENS (Notes)

12 Months Ended

Dec. 31, 2014

Indexed Debt Securities [Abstract]

Indexed Debt Securities Text Block

Indexed Debt Securities (ZENS) and Securities Related to ZENS

(a) Investment in Securities Related to ZENS

In 1995, CenterPoint Energy sold a cable television subsidiary to Time Warner, Inc. (TW) and received TW securities as partial consideration. A subsidiary of CenterPoint Energy now holds 7.1 million shares of TW common stock (TW Common), 1.8 million shares of Time Warner Cable Inc. (TWC) common stock (TWC Common), 0.6 million shares of AOL, Inc. (AOL) common stock (AOL Common) and 0.9 million shares of Time Inc. common stock (Time Common) (together with the TW Common, TWC Common and AOL Common, the TW Securities) which are classified as trading securities and are expected to be held to facilitate CenterPoint Energy’s ability to meet its obligation under the ZENS. Unrealized gains and losses resulting from changes in the market value of the TW Securities are recorded in CenterPoint Energy’s Statements of Consolidated Income.

(b) ZENS

In September 1999, CenterPoint Energy issued ZENS having an original principal amount of $1 billion of which $828 million remain outstanding at December 31, 2014. Each ZENS note was originally exchangeable at the holder’s option at any time for an amount of cash equal to 95% of the market value of the reference shares of TW Common attributable to such note. The number and identity of the reference shares attributable to each ZENS note are adjusted for certain corporate events. As of December 31, 2014, the reference shares for each ZENS note consisted of 0.5 share of TW Common, 0.125505 share of TWC Common and 0.045455 share of AOL Common and 0.0625 share of Time Common. On February 13, 2014, TWC announced that it had agreed to merge with Comcast Corporation (Comcast). In the merger, each share of TWC Common would be exchanged for 2.875 shares of Comcast common stock (Comcast Common). Upon the closing of the merger (assuming no change in the merger consideration), the reference shares for each ZENS note would include 0.360827 share of Comcast Common in place of the current 0.125505 share of TWC Common. CenterPoint Energy pays interest on the ZENS at an annual rate of 2% plus the amount of any quarterly cash dividends paid in respect of the reference shares attributable to the ZENS. The principal amount of ZENS is subject to being increased or decreased to the extent that the annual yield from interest and cash dividends on the reference shares is less than or more than 2.309%. The adjusted principal amount is defined in the ZENS instrument as “contingent principal.” At December 31, 2014, ZENS having an original principal amount of $828 million and a contingent principal amount of $751 million were outstanding and were exchangeable, at the option of the holders, for cash equal to 95% of the market value of reference shares deemed to be attributable to the ZENS. At December 31, 2014, the market value of such shares was approximately $930 million, which would provide an exchange amount of $1,067 for each $1,000 original principal amount of ZENS. At maturity of the ZENS in 2029, CenterPoint Energy will be obligated to pay in cash the higher of the contingent principal amount of the ZENS or an amount based on the then-current market value of the reference shares, which will include any additional publicly-traded securities distributed with respect to the current reference shares prior to maturity.

The ZENS obligation is bifurcated into a debt component and a derivative component (the holder’s option to receive the appreciated value of the reference shares at maturity). The bifurcated debt component accretes through interest charges at 17.3% annually up to the contingent principal amount of the ZENS in 2029. Such accretion will be reduced by annual cash interest payments, as described above. The derivative component is recorded at fair value and changes in the fair value of the derivative component are recorded in CenterPoint Energy’s Statements of Consolidated Income. Changes in the fair value of the TW Securities held by CenterPoint Energy are expected to substantially offset changes in the fair value of the derivative component of the ZENS.

The following table sets forth summarized financial information regarding CenterPoint Energy’s investment in TW Securities and each component of CenterPoint Energy’s ZENS obligation (in millions). 

	TW Securities			Debt Component of ZENS			Derivative Component of ZENS
Balance at December 31, 2011	$	386		$	131		$	197
Accretion of debt component of ZENS	—			24			—
2% interest paid	—			(17		)	—
Loss on indexed debt securities	—			—			71
Gain on TW Securities	154			—			—
Balance at December 31, 2012	540			138			268
Accretion of debt component of ZENS	—			24			—
2% interest paid	—			(17		)	—
Sale of TW Securities	(9		)	—			—
Redemption of indexed debt securities	—			(2		)	(6		)
Loss on indexed debt securities	—			—			193
Gain on TW Securities	236			—			—
Balance at December 31, 2013	767			143			455
Accretion of debt component of ZENS	—			26			—
2% interest paid	—			(17		)	—
Loss on indexed debt securities	—			—			86
Gain on TW Securities	163			—			—
Balance at December 31, 2014	$	930		$	152		$	541

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Stock-Based Incentive Compensation Plans and Employee Benefit Plans

12 Months Ended

Dec. 31, 2014

Disclosure of Stock-Based Incentive Compensation Plans and Employee Benefit Plans [Abstract]

Stock-Based Incentive Compensation Plans and Employee Benefit Plans

Stock-Based Incentive Compensation Plans and Employee Benefit Plans

(a) Stock-Based Incentive Compensation Plans

CenterPoint Energy has long-term incentive plans (LTIPs) that provide for the issuance of stock-based incentives, including stock options, performance awards, restricted stock unit awards and restricted and unrestricted stock awards to officers, employees and non-employee directors.  Approximately 14 million shares of CenterPoint Energy common stock are authorized under these plans for awards.

Equity awards are granted to employees without cost to the participants. The performance awards granted in 2014, 2013 and 2012 are distributed based upon the achievement of certain objectives over a three-year performance cycle. The stock awards granted in 2014 are service based. The stock awards granted in 2013 and 2012 are subject to the performance condition that total common dividends declared during the three-year vesting period must be at least $2.49 and $2.43 per share, respectively. The stock awards generally vest at the end of a three-year period. Upon vesting, both the performance and stock awards are issued to the participants along with the value of dividend equivalents earned over the performance cycle or vesting period. CenterPoint Energy issues new shares in order to satisfy stock-based payments related to LTIPs.

CenterPoint Energy recorded LTIP compensation expense of $18 million, $19 million and $18 million for the years ended December 31, 2014, 2013 and 2012, respectively.  This expense is included in Operation and Maintenance Expense in the Statements of Consolidated Income.

The total income tax benefit recognized related to LTIPs was $7 million for each of the years ended December 31, 2014, 2013 and 2012. No compensation cost related to LTIPs was capitalized as a part of inventory or fixed assets in 2014, 2013 or 2012. The actual tax benefit realized for tax deductions related to LTIPs totaled $13 million, $13 million and $14 million for 2014, 2013 and 2012, respectively.

Compensation costs for the performance and stock awards granted under LTIPs are measured using fair value and expected achievement levels on the grant date.  For performance awards with operational goals, the achievement levels are revised as goals are evaluated. The fair value of awards granted to employees is based on the closing stock price of CenterPoint Energy’s common stock on the grant date.  The compensation expense is recorded on a straight-line basis over the vesting period.  Forfeitures are estimated on the date of grant based on historical averages, and estimates are updated periodically throughout the vesting period.  

The following tables summarize CenterPoint Energy’s LTIP activity for 2014:

Stock Options

	Outstanding Options
	Year Ended December 31, 2014
	Shares (Thousands)		Weighted-Average Exercise Price		Remaining Average Contractual Life (Years)	Aggregate Intrinsic Value (Millions)
Outstanding at December 31, 2013	120		$	10.93
Exercised	(120	)	10.93
Outstanding at December 31, 2014	—		—		—	$	—
Exercisable at December 31, 2014	—		—		—	—

Cash received from stock options exercised was $1 million, $3 million and $3 million for 2014, 2013 and 2012, respectively.

CenterPoint Energy has not issued stock options since 2004.

Performance Awards

	Outstanding and Non-Vested Shares
	Year Ended December 31, 2014
	Shares (Thousands)		Weighted-Average Grant Date Fair Value		Remaining Average Contractual Life (Years)	Aggregate Intrinsic Value (Millions)
Outstanding at December 31, 2013	2,703		$	18.17
Granted	1,198		23.70
Forfeited or cancelled	(515	)	21.09
Vested and released to participants	(926	)	15.50
Outstanding at December 31, 2014	2,460		21.26		1.1	$	40

The outstanding and non-vested shares displayed in the table above assumes that shares are issued at the maximum performance level. The aggregate intrinsic value reflects the impact of current expectations of achievement and stock price.

Stock Awards

	Outstanding and Non-Vested Shares
	Year Ended December 31, 2014
	Shares (Thousands)		Weighted-Average Grant Date Fair Value		Remaining Average Contractual Life (Years)	Aggregate Intrinsic Value (Millions)
Outstanding at December 31, 2013	898		$	18.72
Granted	322		23.89
Forfeited or cancelled	(122	)	21.60
Vested and released to participants	(375	)	17.03
Outstanding at December 31, 2014	723		21.41		1.0	$	17

The weighted-average grant-date fair values per unit of awards granted were as follows for 2014, 2013 and 2012:

	Year Ended December 31,
	2014		2013		2012
Performance awards	$	23.70	$	20.67	$	18.79
Stock awards	23.89		21.53		18.96

Valuation Data

The total intrinsic value of awards received by participants was as follows for 2014, 2013 and 2012:

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Stock options exercised	$	2	$	4	$	6
Performance awards	24		20		24
Stock awards	10		10		9

The total grant date fair value of performance and stock awards which vested during the years ended December 31, 2014, 2013 and 2012 was $21 million, $19 million and $19 million, respectively.  As of December 31, 2014, there was $17 million of total unrecognized compensation cost related to non-vested performance and stock awards which is expected to be recognized over a weighted-average period of 1.6 years.

(b) Pension and Postretirement Benefits

CenterPoint Energy maintains a non-contributory qualified defined benefit pension plan covering substantially all employees, with benefits determined using a cash balance formula. Under the cash balance formula, participants accumulate a retirement benefit based upon 5% of eligible earnings and accrued interest. Participants are 100% vested in their benefit after completing three years of service. In addition to the non-contributory qualified defined benefit pension plan, CenterPoint Energy maintains unfunded non-qualified benefit restoration plans which allow participants to receive the benefits to which they would have been entitled under CenterPoint Energy’s non-contributory pension plan except for federally mandated limits on qualified plan benefits or on the level of compensation on which qualified plan benefits may be calculated.

CenterPoint Energy provides certain healthcare and life insurance benefits for retired employees on both a contributory and non-contributory basis. Employees become eligible for these benefits if they have met certain age and service requirements at retirement, as defined in the plans. Under plan amendments, effective in early 1999, healthcare benefits for future retirees were changed to limit employer contributions for medical coverage.

Such benefit costs are accrued over the active service period of employees. The net unrecognized transition obligation is being amortized over approximately 20 years.

CenterPoint Energy’s net periodic cost includes the following components relating to pension, including the benefit restoration plan, and postretirement benefits:

	Year Ended December 31,
	2014						2013						2012
	Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits
	(in millions)
Service cost	$	42		$	2		$	44		$	2		$	35		$	1
Interest cost	100			22			90			20			100			23
Expected return on plan assets	(125		)	(7		)	(135		)	(7		)	(121		)	(7		)
Amortization of prior service cost (credit)	10			(1		)	10			1			8			3
Amortization of net loss	44			1			63			6			60			4
Amortization of transition obligation	—			5			—			7			—			7
Benefit enhancement	—			—			—			—			—			1
Curtailment (1)	6			—			—			—			—			—
Net periodic cost	$	77		$	22		$	72		$	29		$	82		$	32

(1) During the fourth quarter of 2014, CenterPoint Energy recognized a curtailment pension loss of $6 million related to employees seconded to Enable. Substantially all of the seconded employees became employees of Enable effective January 1, 2015.

CenterPoint Energy used the following assumptions to determine net periodic cost relating to pension and postretirement benefits:

	Year Ended December 31,
	2014				2013				2012
	Pension Benefits		Post-retirement Benefits		Pension Benefits		Post-retirement Benefits		Pension Benefits		Post-retirement Benefits
Discount rate	4.80	%	4.75	%	4.00	%	3.90	%	4.90	%	4.80	%
Expected return on plan assets	7.00		5.50		8.00		5.50		8.00		5.50
Rate of increase in compensation levels	3.90		—		4.00		—		4.20		—

In determining net periodic benefits cost, CenterPoint Energy uses fair value, as of the beginning of the year, as its basis for determining expected return on plan assets.

The following table summarizes changes in the benefit obligation, plan assets, the amounts recognized in consolidated balance sheets and the key assumptions of CenterPoint Energy’s pension, including benefit restoration, and postretirement plans. The measurement dates for plan assets and obligations were December 31, 2014 and 2013.

	December 31,
	2014						2013
	Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits
	(in millions, except for actuarial assumptions)
Change in Benefit Obligation
Benefit obligation, beginning of year	$	2,153		$	476		$	2,316		$	538
Service cost	42			2			44			2
Interest cost	100			22			90			20
Participant contributions	—			7			—			7
Benefits paid	(156		)	(32		)	(142		)	(34		)
Actuarial (gain) loss	264			52			(155		)	(60		)
Medicare reimbursement	—			3			—			3
Plan amendment	—			1			—			—
Curtailment	—			(2		)	—			—
Benefit obligation, end of year	2,403			529			2,153			476
Change in Plan Assets
Fair value of plan assets, beginning of year	1,803			140			1,698			139
Employer contributions	97			18			91			19
Participant contributions	—			7			—			7
Benefits paid	(156		)	(32		)	(142		)	(34		)
Actual investment return	181			8			156			9
Fair value of plan assets, end of year	1,925			141			1,803			140
Funded status, end of year	$	(478	)	$	(388	)	$	(350	)	$	(336	)
Amounts Recognized in Balance Sheets
Current liabilities-other	$	(31	)	$	(9	)	$	(9	)	$	(9	)
Other liabilities-benefit obligations	(447		)	(379		)	(341		)	(327		)
Net liability, end of year	$	(478	)	$	(388	)	$	(350	)	$	(336	)
Actuarial Assumptions
Discount rate	4.05		%	3.90		%	4.80		%	4.75		%
Expected return on plan assets	6.50			5.20			7.00			5.50
Rate of increase in compensation levels	4.00			—			3.90			—
Healthcare cost trend rate assumed for the next year - Pre-65	—			7.25			—			7.00
Healthcare cost trend rate assumed for the next year - Post-65	—			8.50			—			7.50
Prescription drug cost trend rate assumed for the next year	—			6.50			—			7.00
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	—			5.00			—			5.50
Year that the healthcare rate reaches the ultimate trend rate	—			2024			—			2018
Year that the prescription drug rate reaches the ultimate trend rate	—			2024			—			2018

The accumulated benefit obligation for all defined benefit pension plans was $2,371 million and $2,123 million as of December 31, 2014 and 2013, respectively.

The expected rate of return assumption was developed using the targeted asset allocation of CenterPoint Energy’s plans and the expected return for each asset class.

The discount rate assumption was determined by matching the projected cash flows of CenterPoint Energy’s plans against a hypothetical yield curve of high-quality corporate bonds represented by a series of annualized individual discount rates from one-half to 99 years.

For measurement purposes, medical costs are assumed to increase 7.25% and 8.50% for the pre-65 and post-65 retirees during 2015, respectively, and the prescription cost is assumed to increase 6.50% during 2015, after which these rates decrease until reaching the ultimate trend rate of 5.00% in 2024.

CenterPoint Energy’s changes in accumulated comprehensive loss related to defined benefit, postretirement and other postemployment plans are as follows (in millions):

	Year Ended December 31,
	2014			2013
Beginning Balance	$	(88	)	$	(132	)
Other comprehensive income (loss) before reclassifications (1)	(3		)	52
Amounts reclassified from accumulated other comprehensive income:
Prior service cost (2)	2			3
Actuarial losses (2)	9			14
Total reclassifications from accumulated other comprehensive income	11			17
Tax expense	(5		)	(25		)
Net current period other comprehensive income	3			44
Ending Balance	$	(85	)	$	(88	)

________________

(1) Total other comprehensive income (loss) related to the re-measurement of pension, postretirement and other postemployment plans.

(2) These accumulated other comprehensive components are included in the computation of net periodic cost.

Amounts recognized in accumulated other comprehensive loss consist of the following:

	December 31,
	2014				2013
	Pension Benefits		Postretirement Benefits		Pension Benefits		Postretirement Benefits
	(in millions)
Unrecognized actuarial loss	$	113	$	14	$	126	$	7
Unrecognized prior service cost	4		2		12		1
Net amount recognized in accumulated other comprehensive loss	$	117	$	16	$	138	$	8

The changes in plan assets and benefit obligations recognized in other comprehensive income during 2014 are as follows (in millions):

	Pension Benefits		Postretirement Benefits
Net gain (loss)	$	10	$	(6	)
Amortization of net loss (gain)	9		(1		)
Amortization of prior service credit (cost)	2		(1		)
Total recognized in comprehensive income	$	21	$	(8	)

The total expense recognized in net periodic costs and other comprehensive income was $56 million and $30 million for pension and postretirement benefits, respectively, for the year ended December 31, 2014.

The amounts in accumulated other comprehensive loss expected to be recognized as components of net periodic benefit cost during 2015 are as follows (in millions):

	Pension Benefits		Postretirement Benefits
Unrecognized actuarial loss	$	12	$	1
Unrecognized prior service cost	1		—
Amounts in accumulated comprehensive loss to be recognized in net periodic cost in 2015	$	13	$	1

The following table displays pension benefits related to CenterPoint Energy’s pension plans that have accumulated benefit obligations in excess of plan assets:

	December 31,
	2014				2013
	Pension Qualified		Pension Non-qualified		Pension Qualified		Pension Non-qualified
	(in millions)
Accumulated benefit obligation	$	2,273	$	98	$	2,031	$	92
Projected benefit obligation	2,304		98		2,061		92
Fair value of plan assets	1,925		—		1,803		—

Assumed healthcare cost trend rates have a significant effect on the reported amounts for CenterPoint Energy’s postretirement benefit plans. A 1% change in the assumed healthcare cost trend rate would have the following effects:

	1% Increase		1% Decrease
	(in millions)
Effect on the postretirement benefit obligation	$	19	$	16
Effect on total of service and interest cost	1		1

In managing the investments associated with the benefit plans, CenterPoint Energy’s objective is to achieve and maintain a fully funded plan.  This objective is  expected to be achieved through an investment strategy that manages liquidity requirements while maintaining a long-term horizon in making investment decisions and efficient and effective management of plan assets.

As part of the investment strategy discussed above, CenterPoint Energy maintained the following weighted average allocation targets for its benefit plans as of December 31, 2014:

	Pension Benefits	Postretirement Benefits
U.S. equity	12 – 28%	14 – 24%
International developed market equity	7 – 17%	3 – 13%
Emerging market equity	3 – 13%	—
Fixed income	54 – 66%	68 – 78%
Cash	0 – 2%	0 – 2%

The following tables set forth by level, within the fair value hierarchy (see Note 8), CenterPoint Energy’s pension plan assets at fair value as of December 31, 2014 and 2013:

	Fair Value Measurements at December 31, 2014
	(in millions)
	Total			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	6		$	6		$	—	$	—
Common collective trust funds (1)	1,108			—			1,108		—
Corporate bonds:
Investment grade or above	368			—			368		—
Equity securities:
International companies	49			49			—		—
U.S. companies	83			83			—		—
Cash received as collateral from securities lending	86			86			—		—
U.S. treasuries	47			47			—		—
Mortgage backed securities	4			—			4		—
Asset backed securities	4			—			4		—
Municipal bonds	79			—			79		—
Mutual funds (2)	161			161			—		—
International government bonds	15			—			15		—
Real estate	1			—			—		1
Obligation to return cash received as collateral from securities lending	(86		)	(86		)	—		—
Total	$	1,925		$	346		$	1,578	$	1

(1) 61% of the amount invested in common collective trust funds is in fixed income securities, 14% is in U.S. equities, 22% is in international equities and 3% is in emerging market equities.

(2) 57% of the amount invested in mutual funds is in international equities, 30% is in emerging market equities and 13% is in U.S. equities.

	Fair Value Measurements at December 31, 2013
	(in millions)
	Total			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	11		$	11		$	—	$	—
Common collective trust funds (1)	1,107			—			1,107		—
Corporate bonds:
Investment grade or above	256			—			256		—
Equity securities:
International companies	75			75			—		—
U.S. companies	77			77			—		—
Cash received as collateral from securities lending	71			71			—		—
U.S. government backed agencies bonds	1			1			—		—
U.S. treasuries	18			18			—		—
Mortgage backed securities	7			—			7		—
Asset backed securities	6			—			6		—
Municipal bonds	61			—			61		—
Mutual funds (2)	172			172			—		—
International government bonds	11			—			11		—
Real estate	1			—			—		1
Obligation to return cash received as collateral from securities lending	(71		)	(71		)	—		—
Total	$	1,803		$	354		$	1,448	$	1

(1) 50% of the amount invested in common collective trust funds is in fixed income securities, 20% is in U.S. equities, 25% is in international equities and 5% is in emerging market equities.

(2) 58% of the amount invested in mutual funds is in international equities, 30% is in emerging market equities and 12% is in U.S. equities.

The pension plan utilized both exchange traded and over-the-counter financial instruments such as futures, interest rate options and swaps that were marked to market daily with the gains/losses settled in the cash accounts. The pension plan did not include any holdings of CenterPoint Energy common stock as of December 31, 2014 or 2013.

The changes in the fair value of the pension plan’s level 3 investments for the years ended December 31, 2014 and 2013 were not material.

The following tables present by level, within the fair value hierarchy, CenterPoint Energy’s postretirement plan assets at fair value as of December 31, 2014 and 2013, by asset category:

	Fair Value Measurements at December 31, 2014
	(in millions)
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Mutual funds (1)	$	141	$	141	$	—	$	—
Total	$	141	$	141	$	—	$	—

(1) 73% of the amount invested in mutual funds is in fixed income securities, 19% is in U.S. equities and 8% is in international equities.

	Fair Value Measurements at December 31, 2013
	(in millions)
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Mutual funds (1)	$	140	$	140	$	—	$	—
Total	$	140	$	140	$	—	$	—

(1) 72% of the amount invested in mutual funds is in fixed income securities, 20% is in U.S. equities and 8% is in international equities.

CenterPoint Energy contributed $87 million, $10 million and $18 million to its qualified pension, non-qualified pension and postretirement benefits plans, respectively, in 2014. CenterPoint Energy expects to contribute approximately $35 million, $31 million and $17 million to its qualified pension, non-qualified pension and postretirement benefits plans, respectively, in 2015.

The following benefit payments are expected to be paid by the pension and postretirement benefit plans (in millions):

			Postretirement Benefit Plan
	Pension Benefits		Benefit Payments		Medicare Subsidy Receipts
2015	$	223	$	35	$	(4	)
2016	143		36		(4		)
2017	147		38		(5		)
2018	154		40		(5		)
2019	152		42		(6		)
2020-2024	785		228		(39		)

(c) Savings Plan

CenterPoint Energy has a tax-qualified employee savings plan that includes a cash or deferred arrangement under Section 401(k) of the Internal Revenue Code of 1986, as amended (the Code), and an employee stock ownership plan (ESOP) under Section 4975(e)(7) of the Code. Under the plan, participating employees may contribute a portion of their compensation, on a pre-tax or after-tax basis, generally up to a maximum of 50% of eligible compensation. The Company matches 100% of the first 6% of each employee’s compensation contributed. The matching contributions are fully vested at all times.

Participating employees may elect to invest all or a portion of their contributions to the plan in CenterPoint Energy common stock, to have dividends reinvested in additional shares or to receive dividend payments in cash on any investment in CenterPoint Energy common stock, and to transfer all or part of their investment in CenterPoint Energy common stock to other investment options offered by the plan.

The savings plan has significant holdings of CenterPoint Energy common stock. As of December 31, 2014, 17,497,676 shares of CenterPoint Energy’s common stock were held by the savings plan, which represented approximately 20% of its investments. Given the concentration of the investments in CenterPoint Energy’s common stock, the savings plan and its participants have market risk related to this investment.

CenterPoint Energy’s savings plan benefit expenses were $39 million, $38 million and $36 million in 2014, 2013 and 2012, respectively.

(d) Postemployment Benefits

CenterPoint Energy provides postemployment benefits for former or inactive employees, their beneficiaries and covered dependents, after employment but before retirement (primarily healthcare and life insurance benefits for participants in the long-term disability plan). The Company recorded postemployment expenses of $3 million, $4 million and $8 million in 2014, 2013 and 2012, respectively.

Included in “Benefit Obligations” in the accompanying Consolidated Balance Sheets at December 31, 2014 and 2013 was $28 million and $30 million, respectively, relating to postemployment obligations.

(e) Other Non-Qualified Plans

CenterPoint Energy has non-qualified deferred compensation plans that provide benefits payable to directors, officers and certain key employees or their designated beneficiaries at specified future dates, upon termination, retirement or death. Benefit payments are made from the general assets of CenterPoint Energy. CenterPoint Energy recorded benefit expense relating to these plans of $5 million for each of the years in 2014, 2013 and 2012. Included in “Benefit Obligations” in the accompanying Consolidated Balance Sheets at December 31, 2014 and 2013 was $60 million and $64 million, respectively, relating to deferred compensation plans.

Included in Benefit Obligations in CenterPoint Energy’s Consolidated Balance Sheets at December 31, 2014 and 2013 was $33 million and $28 million, respectively, relating to split-dollar life insurance arrangements.

(f) Change in Control Agreements and Other Employee Matters

CenterPoint Energy had change in control agreements with certain of its officers, which expired December 31, 2014.  In lieu of these agreements, our Board of Directors approved a new change in control plan, which was effective January 1, 2015.  The plan, like the expired agreements, generally provides, to the extent applicable, in the case of a change in control of CenterPoint Energy and termination of employment, for severance benefits of up to three times annual base salary plus bonus, and other benefits.  Our officers, including our Executive Chairman, are participants under the plan.

As of December 31, 2014, approximately 31% of CenterPoint Energy’s employees were subject to collective bargaining agreements. The collective bargaining agreements with the Gas Workers Local Union 340 and International Brotherhood of Electrical Workers Local 949 in Minnesota, which collectively cover approximately 8% of CenterPoint Energy’s employees, are scheduled to expire in April and December 2015, respectively. CenterPoint Energy believes it has good relationships with these bargaining units and expects to negotiate new agreements in 2015.

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Short Term Borrowings and Long Term Debt (Schedule of Debt) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Short term borrowings:
Total short-term borrowings	$ 53,000,000	[1]	$ 43,000,000	[1]
Long-term debt:
Unamortized Discount (Premium), Net	(50,000,000)		(50,000,000)
Long-term Debt, Excluding Current Maturities	8,009,000,000		7,817,000,000
Long-term Debt, Current Maturities	795,000,000	[1]	497,000,000	[1]
Debt, Current	848,000,000	[1]	540,000,000	[1]
Size of Facility	2,100,000,000		2,100,000,000
ZENS (2)
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage (in hundredths)	2.00%
Other Debt [Member]
Long-term debt:
Long-Term	0	[2]	1,000,000	[2]
Current	0	[1],[2]	0	[1],[2]
Parent Company [Member]
Long-term debt:
Capital Lease Obligations, Noncurrent	2,000,000		0
Capital Lease Obligations, Current	2,000,000	[1]	0	[1]
Long-term Debt, Excluding Current Maturities	858,000,000		936,000,000
Size of Facility	1,200,000,000		1,200,000,000
Parent Company [Member] | ZENS (2)
Long-term debt:
Long-Term	0	[3]	0	[3]
Current	152,000,000	[1],[3]	143,000,000	[1],[3]
Parent Company [Member] | Senior notes 5.95% to 6.85% due 2015 to 2018
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum (in hundredths)	5.95%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum (in hundredths)	6.85%
Long-term debt:
Long-Term	550,000,000		750,000,000
Current	200,000,000	[1]	0	[1]
Parent Company [Member] | Pollution control bonds 4.90% to 5.125% due 2015 to 2028 (3)
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum (in hundredths)	4.90%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum (in hundredths)	5.125%
Long-term debt:
Long-Term	118,000,000	[4]	187,000,000	[4]
Current	69,000,000	[1],[4]	0	[1],[4]
Amount of debt secured by general mortgage bonds	118,000,000		118,000,000
Parent Company [Member] | Commercial paper (4)
Long-term debt:
Long-Term	191,000,000	[2]	0	[2]
Current	0	[1],[2]	0	[1],[2]
CenterPoint Houston [Member]
Long-term debt:
Capital Lease Obligations, Noncurrent	1,000,000		0
Capital Lease Obligations, Current	0	[1]	0	[1]
Size of Facility	300,000,000		300,000,000
CenterPoint Houston [Member] | First mortgage bonds 9.15% due 2021
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage (in hundredths)	9.15%
Long-term debt:
Long-Term	102,000,000		102,000,000
Current	0	[1]	0	[1]
Amount of debt secured by general mortgage bonds	102,000,000
CenterPoint Houston [Member] | General mortgage bonds 2.25% to 6.95% due 2022 to 2044
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum (in hundredths)	2.25%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum (in hundredths)	6.95%
Long-term debt:
Long-Term	1,912,000,000		1,312,000,000
Current	0	[1]	0	[1]
Amount of debt secured by general mortgage bonds	2,400,000,000
CenterPoint Houston [Member] | Pollution control bonds 4.25% to 5.60% due 2017 to 2027
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum (in hundredths)	4.25%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum (in hundredths)	5.60%
Long-term debt:
Long-Term	0		183,000,000
Current	0	[1]	0	[1]
CenterPoint Houston [Member] | System restoration bonds 1.833% to 4.243% due 2015 to 2022
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum (in hundredths)	1.833%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum (in hundredths)	4.243%
Long-term debt:
Long-Term	415,000,000		463,000,000
Current	48,000,000	[1]	47,000,000	[1]
CenterPoint Houston [Member] | Transition bonds 0.90% to 5.302% due 2015 to 2024
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum (in hundredths)	0.90%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum (in hundredths)	5.302%
Long-term debt:
Long-Term	2,259,000,000		2,583,000,000
Current	324,000,000	[1]	307,000,000	[1]
CERC Corp [Member]
Long-term debt:
Size of Facility	600,000,000		600,000,000
CERC Corp [Member] | Commercial paper (4)
Long-term debt:
Long-Term	341,000,000	[2]	118,000,000	[2]
Current	0	[1],[2]	0	[1],[2]
CERC Corp [Member] | Senior notes 4.50% to 6.625% due 2016 to 2041
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum (in hundredths)	4.50%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum (in hundredths)	6.625%
Long-term debt:
Long-Term	2,168,000,000		2,168,000,000
Current	0	[1]	0	[1]
Product Financing Arrangement [Member]
Short term borrowings:
Total short-term borrowings	$ 53,000,000	[1]	$ 43,000,000	[1]

[1] Includes amounts due or exchangeable within one year of the date noted.

[2] Classified as long-term debt because the termination date of the facility that backstops the commercial paper is more than one year from the date noted.

[3] CenterPoint Energy’s ZENS obligation is bifurcated into a debt component and an embedded derivative component. For additional information regarding ZENS, see Note 10(b). As ZENS are exchangeable for cash at any time at the option of the holders, these notes are classified as a current portion of long-term debt.

[4] $118 million of these series of debt were secured by general mortgage bonds of CenterPoint Houston at both December 31, 2014 and 2013.

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Goodwill

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

Goodwill

Goodwill by reportable business segment as of both December 31, 2014 and 2013 are as follows (in millions):

Natural Gas Distribution	$	746
Energy Services (1)	83
Other	11
Total	$	840

(1) Amounts presented are net of accumulated goodwill impairment charge of $252 million.

CenterPoint Energy performs its goodwill impairment tests at least annually and evaluates goodwill when events or changes in circumstances indicate that its carrying value may not be recoverable. The impairment evaluation for goodwill is performed by using a two-step process. In the first step, the fair value of each reporting unit, which approximate the reportable business segments, is compared with the carrying amount of the reporting unit, including goodwill. The estimated fair value of the reporting unit is generally determined on the basis of discounted cash flows. If the estimated fair value of the reporting unit is less than the carrying amount of the reporting unit, then a second step must be completed in order to determine the amount of the goodwill impairment that should be recorded. In the second step, the implied fair value of the reporting unit’s goodwill is determined by allocating the reporting unit’s fair value to all of its assets and liabilities other than goodwill (including any unrecognized intangible assets) in a manner similar to a purchase price allocation. The resulting implied fair value of the goodwill that results from the application of this second step is then compared to the carrying amount of the goodwill and an impairment charge is recorded for the difference.

CenterPoint Energy performed its annual impairment test in the third quarter of each of 2014 and 2013 and determined, based on the results of the first step, that no impairment charge was required for any reportable segment. Other intangibles were not material as of December 31, 2014 and 2013.

CenterPoint Energy’s annual impairment test in the third quarter of 2012 resulted in a non-cash goodwill impairment charge in the amount of $252 million for the Energy Services reportable segment. The Energy Services reporting unit fair value analysis resulted in an implied fair value of goodwill of $83 million for this reporting unit, and as a result, the non-cash impairment charge was recorded in the third quarter of 2012. The adverse wholesale market conditions facing CenterPoint Energy’s Energy Services business, specifically the prospects for continued low geographic and seasonal price differentials for natural gas, led to a reduction in the estimate of the fair value of goodwill associated with this reporting unit.

CenterPoint Energy estimated the value of the Energy Services reporting unit using an income approach. Under this approach, the fair value of the reporting unit is determined by using the present value of future expected cash flows, which are based on management projections of revenue growth, gross margin, and overall market conditions. These estimated future cash flows are then discounted using a rate that approximates the weighted average cost of capital of a market participant.

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Regulatory Accounting

12 Months Ended

Dec. 31, 2014

Regulated Operations [Abstract]

Regulatory Matters

Regulatory Accounting

The following is a list of regulatory assets/liabilities reflected on CenterPoint Energy’s Consolidated Balance Sheets as of December 31, 2014 and 2013:

	December 31,
	2014			2013
	(in millions)
Securitized regulatory assets	$	2,738		$	3,179
Unrecognized equity return (1)	(442		)	(508		)
Unamortized loss on reacquired debt	104			111
Pension and postretirement-related regulatory asset (2)	922			732
Other long-term regulatory assets (3)	205			212
Total regulatory assets	3,527			3,726
Estimated removal costs	958			941
Other long-term regulatory liabilities	248			211
Total regulatory liabilities	1,206			1,152
Total regulatory assets and liabilities, net	$	2,321		$	2,574

(1) As of December 31, 2014, CenterPoint Energy has not recognized an allowed equity return of $442 million because such return will be recognized as it is recovered in rates through 2024. During the years ended December 31, 2014, 2013 and 2012, CenterPoint Houston recognized approximately $68 million, $45 million and $47 million, respectively, of the allowed equity return. The timing of CenterPoint Energy’s recognition of the allowed equity return will vary each period based on amounts actually collected during the period. The actual amounts recovered for the allowed equity return are reviewed and adjusted at least annually by the Texas Utility Commission to correct any over-collections or under-collections during the preceding 12 months and to provide for the full and timely recovery of the allowed equity return.

(2) CenterPoint Houston’s actuarially determined pension and other postemployment expense in excess of the amount being recovered through rates is being deferred for rate making purposes. Deferred pension and other postemployment expenses of $-0- and $5 million as of December 31, 2014 and 2013, respectively, were not earning a return.

(3) Other regulatory assets that are not earning a return were not material as of December 31, 2014 and 2013.

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Derivative Instruments

12 Months Ended

Dec. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

Derivative Instruments

CenterPoint Energy is exposed to various market risks. These risks arise from transactions entered into in the normal course of business.  CenterPoint Energy utilizes derivative instruments such as physical forward contracts, swaps and options to mitigate the impact of changes in commodity prices and weather on its operating results and cash flows.

(a) Non-Trading Activities

Derivative Instruments. CenterPoint Energy enters into certain derivative instruments to manage physical commodity price risk and does not engage in proprietary or speculative commodity trading.  These financial instruments do not qualify or are not designated as cash flow or fair value hedges.

Weather Hedges. CenterPoint Energy has weather normalization or other rate mechanisms that mitigate the impact of weather on NGD in Arkansas, Louisiana, Mississippi and Oklahoma. NGD in Texas and Minnesota and electric operations in Texas do not have such mechanisms. As a result, fluctuations from normal weather may have a significant positive or negative effect on NGD’s results in Texas and Minnesota and on CenterPoint Houston’s results in its service territory.

CenterPoint Energy entered into heating-degree day swaps for certain NGD jurisdictions to mitigate the effect of fluctuations from normal weather on its results of operations and cash flows for the winter heating season, which contained a bilateral dollar cap of $15 million in 2012 - 2013, $16 million in 2013 - 2014 and $16 million in 2014 - 2015. In both 2013 and 2014, CenterPoint Energy also entered into a similar winter weather hedge for the CenterPoint Houston service territory, which each contained a bilateral dollar cap of $8 million. The swaps are based on ten-year normal weather. During the years ended December 31, 2014, 2013 and 2012, CenterPoint Energy recognized losses of $11 million, losses of $22 million and gains of $8 million, respectively, related to these swaps.  Weather hedge gains and losses are included in revenues in the Statements of Consolidated Income.

(b) Derivative Fair Values and Income Statement Impacts

The following tables present information about CenterPoint Energy’s derivative instruments and hedging activities. The first two tables provide a balance sheet overview of CenterPoint Energy’s Derivative Assets and Liabilities as of December 31, 2014 and 2013, while the last table provides a breakdown of the related income statement impacts for the years ending December 31, 2014 and 2013.

Fair Value of Derivative Instruments
	December 31, 2014
Total derivatives not designated as hedging instruments	Balance Sheet Location	Derivative Assets Fair Value		Derivative Liabilities Fair Value
		(in millions)
Natural gas derivatives (1) (2) (3)	Current Assets: Non-trading derivative assets	$	101	$	1
Natural gas derivatives (1) (2) (3)	Other Assets: Non-trading derivative assets	32		—
Natural gas derivatives (1) (2) (3)	Current Liabilities: Non-trading derivative liabilities	14		83
Natural gas derivatives (1) (2) (3)	Other Liabilities: Non-trading derivative liabilities	2		18
Indexed debt securities derivative	Current Liabilities	—		541
Total		$	149	$	643

(1) The fair value shown for natural gas contracts is comprised of derivative gross volumes totaling 804 billion cubic feet (Bcf) or a net 60 Bcf long position.  Of the net long position, basis swaps constitute 127 Bcf.

(2) Natural gas contracts are presented on a net basis in the Consolidated Balance Sheets. Natural gas contracts are subject to master netting arrangements. This netting applies to all undisputed amounts due or past due and causes derivative assets (liabilities) to be ultimately presented net in a liability (asset) account within the Consolidated Balance Sheets. The net of total non-trading derivative assets and liabilities was a $111 million asset as shown on CenterPoint Energy’s Consolidated Balance Sheets (and as detailed in the table below), and was comprised of the natural gas contracts derivative assets and liabilities separately shown above offset by collateral netting of $64 million.

(3) Derivative Assets and Derivative Liabilities include no material amounts related to physical forward transactions with Enable.

Offsetting of Natural Gas Derivative Assets and Liabilities
	December 31, 2014
	Gross AmountsRecognized (1)			Gross Amounts Offset in the Consolidated Balance Sheets			Net Amount Presented in the Consolidated Balance Sheets (2)
	(in millions)
Current Assets: Non-trading derivative assets	$	115		$	(16	)	$	99
Other Assets: Non-trading derivative assets	34			(2		)	32
Current Liabilities: Non-trading derivative liabilities	(84		)	65			(19		)
Other Liabilities: Non-trading derivative liabilities	(18		)	17			(1		)
Total	$	47		$	64		$	111

________________

(1) Gross amounts recognized include some derivative assets and liabilities that are not subject to master netting arrangements.

(2) The derivative assets and liabilities on the Consolidated Balance Sheets exclude accounts receivable or accounts payable that, should they exist, could be used as offsets to these balances in the event of a default.

Fair Value of Derivative Instruments
	December 31, 2013
Total derivatives not designated as hedging instruments	Balance Sheet Location	Derivative Assets Fair Value		Derivative Liabilities Fair Value
		(in millions)
Natural gas derivatives (1) (2) (3)	Current Assets: Non-trading derivative assets	$	28	$	4
Natural gas derivatives (1) (2)	Other Assets: Non-trading derivative assets	10		—
Natural gas derivatives (1) (2)	Current Liabilities: Non-trading derivative liabilities	4		21
Natural gas derivatives (1) (2)	Other Liabilities: Non-trading derivative liabilities	1		5
Indexed debt securities derivative	Current Liabilities	—		455
Total		$	43	$	485

(1) The fair value shown for natural gas contracts is comprised of derivative gross volumes totaling 607 Bcf or a net 46 Bcf long position.  Of the net long position, basis swaps constitute 99 Bcf.

(2) Natural gas contracts are presented on a net basis in the Consolidated Balance Sheets. Natural gas contracts are subject to master netting arrangements. This netting applies to all undisputed amounts due or past due and causes derivative assets (liabilities) to be ultimately presented net in a liability (asset) account within the Consolidated Balance Sheets. The net of total non-trading derivative assets and liabilities was a $13 million asset as shown on CenterPoint Energy’s Consolidated Balance Sheets (and as detailed in the table below), and was comprised of the natural gas contracts derivative assets and liabilities separately shown above, offset by collateral netting of less than $1 million.

(3) The $28 million Derivative Current Asset includes $1 million related to physical forwards purchased from Enable.

Offsetting of Natural Gas Derivative Assets and Liabilities
	December 31, 2013
	Gross AmountsRecognized (1)			Gross Amounts Offset in the Consolidated Balance Sheets			Net Amount Presented in the Consolidated Balance Sheets (2)
	(in millions)
Current Assets: Non-trading derivative assets	$	32		$	(8	)	$	24
Other Assets: Non-trading derivative assets	11			(1		)	10
Current Liabilities: Non-trading derivative liabilities	(25		)	8			(17		)
Other Liabilities: Non-trading derivative liabilities	(5		)	1			(4		)
Total	$	13		$	—		$	13

________________

(1) Gross amounts recognized include some derivative assets and liabilities that are not subject to master netting arrangements.

(2) The derivative assets and liabilities on the Consolidated Balance Sheets exclude accounts receivable or accounts payable that, should they exist, could be used as offsets to these balances in the event of a default.

For CenterPoint Energy’s price stabilization activities of the Natural Gas Distribution business segment, the settled costs of derivatives are ultimately recovered through purchased gas adjustments. Accordingly, the net unrealized gains and losses associated with these contracts are recorded as net regulatory assets. Realized and unrealized gains and losses on other derivatives are recognized in the Statements of Consolidated Income as revenue for retail sales derivative contracts and as natural gas expense for financial natural gas derivatives and non-retail related physical natural gas derivatives. Unrealized gains and losses on indexed debt securities are recorded as Other Income (Expense) in the Statements of Consolidated Income.

Income Statement Impact of Derivative Activity
		Year Ended December 31,
Total derivatives not designated as hedging instruments	Income Statement Location	2014			2013			2011
		(in millions)
Natural gas derivatives	Gains (Losses) in Revenue	$	35		$	11		$	43
Natural gas derivatives (1) (2)	Gains (Losses) in Expense: Natural Gas	11			10			(63		)
Indexed debt securities derivative	Gains (Losses) in Other Income (Expense)	(86		)	(193		)	(71		)
Total		$	(40	)	$	(172	)	$	(91	)

(1) The Gains (Losses) in Expense: Natural Gas includes $2 million and $(2) million during the years ended December 31, 2014 and 2013, respectively, related to physical forwards purchased from Enable.

(2) The Gains (Losses) in Expense: Natural Gas includes $-0-, $-0- and $(38) million of costs in 2014, 2013 and 2012, respectively, associated with price stabilization activities of the Natural Gas Distribution business segment that will be ultimately recovered through purchased gas adjustments.

(c) Credit Risk Contingent Features

CenterPoint Energy enters into financial derivative contracts containing material adverse change provisions.  These provisions could require CenterPoint Energy to post additional collateral if the Standard & Poor’s Ratings Services or Moody’s Investors Service, Inc. credit ratings of CenterPoint Energy, Inc. or its subsidiaries are downgraded.  The total fair value of the derivative instruments that contain credit risk contingent features that are in a net liability position at December 31, 2014 and 2013 was $2 million and $1 million, respectively.  The aggregate fair value of assets that are already posted as collateral was less than $1 million at both December 31, 2014 and 2013.  If all derivative contracts (in a net liability position) containing credit risk contingent features were triggered at December 31, 2014 and 2013, $2 million and $1 million, respectively, of additional assets would be required to be posted as collateral.

(d) Credit Quality of Counterparties

In addition to the risk associated with price movements, credit risk is also inherent in CenterPoint Energy’s non-trading derivative activities. Credit risk relates to the risk of loss resulting from non-performance of contractual obligations by a counterparty. The following table shows the composition of counterparties to the non-trading derivative assets of CenterPoint Energy as of December 31, 2014 and 2013 (in millions):

	December 31, 2014				December 31, 2013
	Investment Grade(1)		Total		Investment Grade(1)		Total
Energy marketers	$	2	$	4	$	1	$	4
Financial institutions	—		—		1		9
End users (2)	2		127		1		21
Total	$	4	$	131	$	3	$	34

(1) “Investment grade” is primarily determined using publicly available credit ratings and considers credit support (including parent company guarantees) and collateral (including cash and standby letters of credit). For unrated counterparties, CenterPoint Energy determines a synthetic credit rating by performing financial statement analysis and considers contractual rights and restrictions and collateral.

(2) End users are comprised primarily of customers who have contracted to fix the price of a portion of their physical gas requirements for future periods.

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Earnings Per Share (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net income	$ 176	[1]	$ 143		$ 107		$ 185		$ 113		$ 151		$ (100)	[2]	$ 147		$ 611	$ 311	$ 417
Weighted Average Number of Shares Outstanding, Basic																	429,634,000	428,466,000	427,189,000
Plus: Incremental shares from assumed conversions:
Diluted weighted average shares (in shares)																	431,668,000	430,930,000	429,794,000
Basic earnings per share:
Basic earnings per share	$ 0.41	[1],[3]	$ 0.33	[3]	$ 0.25	[3]	$ 0.43	[3]	$ 0.26	[3]	$ 0.35	[3]	$ (0.23)	[2],[3]	$ 0.34	[3]	$ 1.42	$ 0.73	$ 0.98
Diluted earnings per share:
Diluted earnings per share	$ 0.41	[1],[3]	$ 0.33	[3]	$ 0.25	[3]	$ 0.43	[3]	$ 0.26	[3]	$ 0.35	[3]	$ (0.23)	[2],[3]	$ 0.34	[3]	$ 1.42	$ 0.72	$ 0.97
Employee Stock Option [Member]
Plus: Incremental shares from assumed conversions:
Stock options (in shares)																	0	41,000	152,000
Restricted Stock [Member]
Plus: Incremental shares from assumed conversions:
Stock options (in shares)																	2,034,000	2,423,000	2,453,000

[1] CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review.

[2] Effective May 1, 2013, CenterPoint Energy contributed CenterPoint Midstream to Enable. See Note 2(b) and Note 9 for further discussion on the formation of Enable and CenterPoint Energy’s investment in Enable, respectively.

[3] Quarterly earnings per common share are based on the weighted average number of shares outstanding during the quarter, and the sum of the quarters may not equal annual earnings per common share.

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Reportable Business Segments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended											12 Months Ended						8 Months Ended		0 Months Ended
	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013		Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013		May 01, 2013	May 30, 2014	Jul. 31, 2012
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues	$ 2,372	[1]	$ 1,807	$ 1,884	$ 3,163	$ 2,184		$ 1,640	$ 1,894	[2]	$ 2,388	$ 9,226		$ 8,106		$ 7,452
Depreciation and Amortization												1,013		954		1,050
Operating Income (Loss)	221	[1]	233	186	295	211		244	223	[2]	332	935		1,010		1,038
Total Assets	23,200					21,870						23,200		21,870		22,871		21,870
Expenditures for Long-Lived Assets												1,402		1,272		1,188
Equity income												308		188		31
Investment in unconsolidated affiliates	4,521					4,518						4,521		4,518				4,518
Enable Midstream Partners [Member]
Segment Reporting Information [Line Items]
Equity Method Investment, Ownership Percentage	55.40%				58.30%							55.40%									54.70%
Equity income												303	[3]	173	[3]	0	[3]
Investment in unconsolidated affiliates	4,520					4,319						4,520		4,319				4,319		4,300
Southeast Supply Header LLC [Member]
Segment Reporting Information [Line Items]
Equity Method Investment, Ownership Percentage	0.10%				25.05%							0.10%
Equity income												5	[4]	15	[4]	26	[4]
Investment in unconsolidated affiliates	1	[5]				199	[5]					1	[5]	199	[5]			199	[5]
Waskom Gas Processing Company [Member]
Segment Reporting Information [Line Items]
Equity income												0	[6]	0	[6]	5	[6]
Electric Transmission & Distribution [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												2,845	[7]	2,570	[7]	2,540	[7]
Depreciation and Amortization												768		685		729
Operating Income (Loss)												595		607		639
Expenditures for Long-Lived Assets												818		759		599
Electric Transmission & Distribution [Member] | Affiliates of NRG Energy, Inc. [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												735		658		648
Electric Transmission & Distribution [Member] | Affiliates of Energy Future Holdings Corp. [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												189		167		162
Natural Gas Distribution [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												3,271		2,837		2,320
Depreciation and Amortization												201		185		173
Operating Income (Loss)												287		263		226
Expenditures for Long-Lived Assets												525		430		359
Energy Services [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												3,095		2,374		1,758
Depreciation and Amortization												5		5		6
Operating Income (Loss)												52		13		(250)
Expenditures for Long-Lived Assets												3		3		6
Interstate Pipelines [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues														133	[8],[9]	356	[8]
Depreciation and Amortization														20	[8],[9]	56	[8]
Operating Income (Loss)														72	[8],[9]	207	[8]
Expenditures for Long-Lived Assets														29	[8],[9]	132	[8]
Interstate Pipelines [Member] | Southeast Supply Header LLC [Member]
Segment Reporting Information [Line Items]
Equity income														7		26
Investment in unconsolidated affiliates																404
Field Services [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues														178	[10],[9]	467	[10]
Depreciation and Amortization														20	[10],[9]	50	[10]
Operating Income (Loss)														73	[10],[9]	214	[10]
Expenditures for Long-Lived Assets														16	[10],[9]	52	[10]
Field Services [Member] | Waskom Gas Processing Company [Member]
Segment Reporting Information [Line Items]
Equity income																5
Midstream Investments [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												0	[11]	0	[11]
Depreciation and Amortization												0	[11]	0	[11]
Operating Income (Loss)												0	[11]	0	[11]
Expenditures for Long-Lived Assets												0	[11]	0	[11]
Midstream Investments [Member] | Enable Midstream Partners [Member]
Segment Reporting Information [Line Items]
Equity income												303						173
Midstream Investments [Member] | Southeast Supply Header LLC [Member]
Segment Reporting Information [Line Items]
Equity income												5						8
Other [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												15		14		11
Depreciation and Amortization												39		39		36
Operating Income (Loss)												1		(18)		2
Expenditures for Long-Lived Assets												56		35		40
Operating Segments [Member] | Electric Transmission & Distribution [Member]
Segment Reporting Information [Line Items]
Total Assets	10,066					9,605						10,066		9,605		11,174		9,605
Operating Segments [Member] | Natural Gas Distribution [Member]
Segment Reporting Information [Line Items]
Total Assets	5,464					4,976						5,464		4,976		4,775		4,976
Operating Segments [Member] | Energy Services [Member]
Segment Reporting Information [Line Items]
Total Assets	978					895						978		895		839		895
Operating Segments [Member] | Interstate Pipelines [Member]
Segment Reporting Information [Line Items]
Total Assets						0	[8],[9]							0	[8],[9]	4,004	[8]	0	[8],[9]
Operating Segments [Member] | Field Services [Member]
Segment Reporting Information [Line Items]
Total Assets						0	[10],[9]							0	[10],[9]	2,453	[10]	0	[10],[9]
Operating Segments [Member] | Midstream Investments [Member]
Segment Reporting Information [Line Items]
Total Assets	4,521	[11]				4,518	[11]					4,521	[11]	4,518	[11]			4,518	[11]
Operating Segments [Member] | Other [Member]
Segment Reporting Information [Line Items]
Total Assets	3,368	[12]				3,026	[12]					3,368	[12]	3,026	[12]	2,600	[12]	3,026	[12]
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												(114)		(124)		(233)
Total Assets	(1,197)					(1,150)						(1,197)		(1,150)		(2,974)		(1,150)
Intersegment Eliminations [Member] | Electric Transmission & Distribution [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												0		0		0
Intersegment Eliminations [Member] | Natural Gas Distribution [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												(30)		(26)		(22)
Intersegment Eliminations [Member] | Energy Services [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												(84)		(27)		(26)
Intersegment Eliminations [Member] | Interstate Pipelines [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues														(53)	[8],[9]	(146)	[8]
Intersegment Eliminations [Member] | Field Services [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues														(18)	[10],[9]	(39)	[10]
Intersegment Eliminations [Member] | Midstream Investments [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												0	[11]	0	[11]
Intersegment Eliminations [Member] | Other [Member]
Segment Reporting Information [Line Items]
Revenues from External Customers and Intersegment Revenues												0		0		0
Pension and Other Postretirement Plans Costs [Member] | Other [Member]
Segment Reporting Information [Line Items]
Total regulatory assets	$ 795					$ 627						$ 795		$ 627		$ 832		$ 627
Waskom Gas Processing Company [Member]
Segment Reporting Information [Line Items]
Percentage of Ownership in Affiliate 2 Acquired																						50.00%
Waskom Gas Processing Company [Member] | Enable Midstream Partners [Member]
Segment Reporting Information [Line Items]
Equity Interest Contributed, Percentage																				100.00%

[1] CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review.

[2] Effective May 1, 2013, CenterPoint Energy contributed CenterPoint Midstream to Enable. See Note 2(b) and Note 9 for further discussion on the formation of Enable and CenterPoint Energy’s investment in Enable, respectively.

[3] On May 1, 2013, CenterPoint Energy formed Enable with OGE and ArcLight.

[4] On each of May 1, 2013 and May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

[5] On May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

[6] On July 31, 2012, Waskom became a wholly owned subsidiary of CenterPoint Energy. Beginning on August 1, 2012, Waskom’s operating results are consolidated on the Statements of Consolidated Income. On May 1, 2013, CenterPoint Energy contributed Waskom to Enable.

[7] Sales to affiliates of NRG in 2014, 2013 and 2012 represented approximately $735 million, $658 million and $648 million, respectively, of CenterPoint Houston’s transmission and distribution revenues. Sales to affiliates of Energy Future Holdings Corp. in 2014, 2013 and 2012 represented approximately $189 million, $167 million and $162 million, respectively, of CenterPoint Houston’s transmission and distribution revenues.

[8] Interstate Pipelines recorded equity income of $7 million and $26 million in the years ended December 31, 2013 and 2012, respectively, from its interest in SESH, a jointly-owned pipeline. These amounts are included in Equity in earnings of unconsolidated affiliates under the Other Income (Expense) caption. Interstate Pipelines’ investment in SESH was $404 million as of December 31, 2012, and is included in Investment in unconsolidated affiliates. As discussed above, effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable and equity earnings associated with its interest in SESH under its Midstream Investments segment, and no longer has an Interstate Pipelines reporting segment prospectively.

[9] Results reflected in the year ended December 31, 2013 represent only January 2013 through April 2013.

[10] Field Services recorded equity income of $5 million for the year ended December 31, 2012 from its interest in Waskom. This amount is included in Equity in earnings of unconsolidated affiliates under the Other Income (Expense) caption. Beginning on August 1, 2012, financial results for Waskom are included in operating income due to the July 31, 2012 purchase of the 50% interest in Waskom that CenterPoint Energy did not already own. CenterPoint Energy contributed 100% interest in Waskom to Enable on May 1, 2013. Effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable under its Midstream Investments segment, and no longer has a Field Services reporting segment prospectively.

[11] Midstream Investments reported equity earnings of $303 million from Enable and $5 million of equity earnings from CenterPoint Energy’s interest in SESH for the year ended December 31, 2014. Midstream Investments reported equity earnings of $173 million from Enable and $8 million of equity earnings from CenterPoint Energy’s interest in SESH for the eight months ended December 31, 2013. Included in total assets of Midstream Investments as of December 31, 2014 and 2013 is $4,520 million and $4,319 million, respectively, related to CenterPoint Energy’s investment in Enable and $1 million and $199 million related to CenterPoint Energy’s retained interest in SESH, respectively.

[12] Included in total assets of Other Operations as of December 31, 2014, 2013 and 2012, are pension and other postemployment related regulatory assets of $795 million, $627 million and $832 million, respectively.

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Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leases, Future Minimum Payments Due [Abstract]
2015	$ 5
2016	4
2017	3
2018	2
2019	2
2020 and beyond	7
Total	23
Total lease expense for all operating leases	11	21	27
Gas Market Manipulation Cases [Member]
Legal Environmental And Other Regulatory Matters Legal Matters Gas Market Manipulation Cases Abstract
Loss Contingency, Pending Claims, Number	1
Loss Contingency, Amicus Briefs filed, number	4
GenOn Demand Charges Transportation Contracts [Member] | CERC Corp [Member]
Legal Environmental And Other Regulatory Matters Legal Matters Gas Market Manipulation Cases Abstract
Undiscounted maximum potential payout of demand charges	42
CenterPoint Midstream Guarantees [Member]
Legal Environmental And Other Regulatory Matters Legal Matters Gas Market Manipulation Cases Abstract
Undiscounted maximum potential payout of demand charges	100
Enable Guaranteed Senior Notes [Member] | CERC Corp [Member]
Legal Environmental And Other Regulatory Matters Legal Matters Gas Market Manipulation Cases Abstract
Undiscounted maximum potential payout of demand charges	1,100
Minnesota Service Territory [Member] | CERC Corp [Member]
Legal Environmental And Other Regulatory Matters Legal Matters Gas Market Manipulation Cases Abstract
Number of remaining sites in the Minnesota service territory (in number of sites)	7
Number of the remaining sites in the Minnesota service territory where the company believes it has no liability (in number of sites)	2
Number of sites where remediation is complete, other than ongoing operations (in number of sites)	2
Amount accrued for remediation of Minnesota sites (in number of sites)	7
Amount collected from insurance companies to be used for future environmental remediation	4
Natural Gas Supply Commitments [Member]
Long-term Purchase Commitment [Line Items]
2015	696
2016	605
2017	551
2018	507
2019	255
After 2019	114
Maximum [Member] | Minnesota Service Territory [Member] | CERC Corp [Member]
Legal Environmental And Other Regulatory Matters Legal Matters Gas Market Manipulation Cases Abstract
Minimum estimated remediation costs for the Minnesota sites	29
Minimum years of remediation for the Minnesota sites (in years)	50
Minimum [Member] | Minnesota Service Territory [Member] | CERC Corp [Member]
Legal Environmental And Other Regulatory Matters Legal Matters Gas Market Manipulation Cases Abstract
Minimum estimated remediation costs for the Minnesota sites	$ 5
Minimum years of remediation for the Minnesota sites (in years)	30

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Regulatory Accounting (Tables)

12 Months Ended

Dec. 31, 2014

Regulated Operations [Abstract]

Schedule of Regulatory Assets and Liabilities

The following is a list of regulatory assets/liabilities reflected on CenterPoint Energy’s Consolidated Balance Sheets as of December 31, 2014 and 2013:

	December 31,
	2014			2013
	(in millions)
Securitized regulatory assets	$	2,738		$	3,179
Unrecognized equity return (1)	(442		)	(508		)
Unamortized loss on reacquired debt	104			111
Pension and postretirement-related regulatory asset (2)	922			732
Other long-term regulatory assets (3)	205			212
Total regulatory assets	3,527			3,726
Estimated removal costs	958			941
Other long-term regulatory liabilities	248			211
Total regulatory liabilities	1,206			1,152
Total regulatory assets and liabilities, net	$	2,321		$	2,574

(1) As of December 31, 2014, CenterPoint Energy has not recognized an allowed equity return of $442 million because such return will be recognized as it is recovered in rates through 2024. During the years ended December 31, 2014, 2013 and 2012, CenterPoint Houston recognized approximately $68 million, $45 million and $47 million, respectively, of the allowed equity return. The timing of CenterPoint Energy’s recognition of the allowed equity return will vary each period based on amounts actually collected during the period. The actual amounts recovered for the allowed equity return are reviewed and adjusted at least annually by the Texas Utility Commission to correct any over-collections or under-collections during the preceding 12 months and to provide for the full and timely recovery of the allowed equity return.

(2) CenterPoint Houston’s actuarially determined pension and other postemployment expense in excess of the amount being recovered through rates is being deferred for rate making purposes. Deferred pension and other postemployment expenses of $-0- and $5 million as of December 31, 2014 and 2013, respectively, were not earning a return.

(3) Other regulatory assets that are not earning a return were not material as of December 31, 2014 and 2013.

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Stock-Based Incentive Compensation Plans and Employee Benefit Plans (Stock Based Incentive Compensation) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance under long-term incentive plans (in shares)	14,000,000
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]
Income tax benefit recognized related to LTIPs	$ 7	$ 7	$ 7
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount	0	0	0
Actual tax benefit realized for tax deductions related to LTIPs	13	13	14
Changes in shares outstanding under all long-term incentive plans, additional disclosures [Abstract]
Number of options outstanding, beginning balance (in shares)	120,000
Number of options exercised (in shares)	(120,000)
Number of options outstanding, ending balance (in shares)	0	120,000
Number of exercisable options (in shares)	0
Weighted average exercise price per option, outstanding, beginning of period (in dollars per share)	$ 10.93
Weighted average exercise price per option exercised (in dollars per share)	$ 10.93
Weighted average exercise price per option, outstanding, end of period (in dollars per share)		$ 10.93
Cash received from options exercised	1	3	3
valuation data [Abstract]
Total intrinsic value of stock options exercised in the period	2	4	6
Total grant date fair values of performance and stock awards which vested during the period	21	19	19
Performance Shares [Member]
Summary of nonvested shares [Roll Forward]
Nonvested, beginning of period (in shares)	2,703,000
Granted (in shares)	1,198,000
Forfeited or cancelled (in shares)	(515,000)
Vested and released to participants (in shares)	(926,000)
Nonvested, end of period (in shares)	2,460,000	2,703,000
Weighted average grant date fair value, nonvested, beginning of period (in dollars per share)	$ 18.17
Weighted average grant date fair values of awards granted (in dollars per share)	$ 23.70	$ 20.67	$ 18.79
Weighted average grant date fair value, forfeited or cancelled (in dollars per share)	$ 21.09
Weighted average grant date fair value, vested and released to participants (in dollars per share)	$ 15.50
Weighted average grant date fair value, nonvested, end of period (in dollars per share)	$ 21.26	$ 18.17
Remaining average contractual life of nonvested shares outstanding (in years)	1 year 1 month
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested	40
valuation data [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested	24	20	24
Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	3 years
Dividends declared during the vesting period (in dollars per share)		$ 2.49	$ 2.43
Summary of nonvested shares [Roll Forward]
Nonvested, beginning of period (in shares)	898,000
Granted (in shares)	322,000
Forfeited or cancelled (in shares)	(122,000)
Vested and released to participants (in shares)	(375,000)
Nonvested, end of period (in shares)	723,000	898,000
Weighted average grant date fair value, nonvested, beginning of period (in dollars per share)	$ 18.72
Weighted average grant date fair values of awards granted (in dollars per share)	$ 23.89	$ 21.53	$ 18.96
Weighted average grant date fair value, forfeited or cancelled (in dollars per share)	$ 21.60
Weighted average grant date fair value, vested and released to participants (in dollars per share)	$ 17.03
Weighted average grant date fair value, nonvested, end of period (in dollars per share)	$ 21.41	$ 18.72
Remaining average contractual life of nonvested shares outstanding (in years)	1 year 0 months
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested	17
valuation data [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested	10	10	9
Performance and Stock Awards [Member]
valuation data [Abstract]
Unrecognized compensation cost related to non-vested performance and stock awards	17
Weighted average period of recognition (in years)	1 year 7 months
Operation And Maintenance Expense Member
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]
LTIP compensation expense	$ 18	$ 19	$ 18

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Short Term Borrowings and Long Term Debt

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Short-term Borrowings and Long-term Debt

Short-term Borrowings and Long-term Debt

	December 31, 2014					December 31, 2013
	Long-Term			Current(1)		Long-Term			Current(1)
	(in millions)
Short-term borrowings:
Inventory financing	$	—		$	53	$	—		$	43
Total short-term borrowings	—			53		—			43
Long-term debt:
CenterPoint Energy:
ZENS (2)	—			152		—			143
Senior notes 5.95% to 6.85% due 2015 to 2018	550			200		750			—
Pollution control bonds 4.90% to 5.125% due 2015 to 2028 (3)	118			69		187			—
Commercial paper (4)	191			—		—			—
Other	2			2		—			—
CenterPoint Houston:
First mortgage bonds 9.15% due 2021	102			—		102			—
General mortgage bonds 2.25% to 6.95% due 2022 to 2044	1,912			—		1,312			—
Pollution control bonds 4.25% to 5.60% due 2017 to 2027	—			—		183			—
System restoration bonds 1.833% to 4.243% due 2015 to 2022	415			48		463			47
Transition bonds 0.90% to 5.302% due 2015 to 2024	2,259			324		2,583			307
Other	1			—		—			—
CERC Corp.:
Senior notes 4.50% to 6.625% due 2016 to 2041	2,168			—		2,168			—
Commercial paper (4)	341			—		118			—
Other	—			—		1			—
Unamortized discount and premium, net	(50		)	—		(50		)	—
Total long-term debt	8,009			795		7,817			497
Total debt	$	8,009		$	848	$	7,817		$	540

(1) Includes amounts due or exchangeable within one year of the date noted.

(2) CenterPoint Energy’s ZENS obligation is bifurcated into a debt component and an embedded derivative component. For additional information regarding ZENS, see Note 10(b). As ZENS are exchangeable for cash at any time at the option of the holders, these notes are classified as a current portion of long-term debt.

(3) $118 million of these series of debt were secured by general mortgage bonds of CenterPoint Houston at both December 31, 2014 and 2013.

(4) Classified as long-term debt because the termination date of the facility that backstops the commercial paper is more than one year from the date noted.

(a) Short-term Borrowings

Inventory Financing. NGD has asset management agreements associated with its utility distribution service in Arkansas, north Louisiana and Oklahoma that extend through 2018. Pursuant to the provisions of the agreements, NGD sells natural gas and agrees to repurchase an equivalent amount of natural gas during the winter heating seasons at the same cost, plus a financing charge. These transactions are accounted for as a financing and they had an associated principal obligation of $53 million and $43 million as of December 31, 2014 and 2013, respectively.

(b) Long-term Debt

On March 17, 2014, CenterPoint Energy Houston Electric, LLC issued $600 million principal amount of 4.50% General Mortgage Bonds due 2044.

Debt Repayments. Approximately $44 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Houston were redeemed on March 3, 2014 at 101% of their principal amount plus accrued interest. The bonds had an interest rate of 4.25%, were scheduled to mature in 2017 and were collateralized by general mortgage bonds of CenterPoint Houston.

Approximately $56 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Houston were purchased by CenterPoint Houston on March 3, 2014 at 101% of their principal amount plus accrued interest pursuant to the mandatory tender provisions of the bonds. The bonds had an interest rate of 5.60% prior to CenterPoint Houston’s purchase and have a variable rate thereafter. The bonds mature in 2027 and are collateralized by general mortgage bonds of CenterPoint Houston. The purchased pollution control bonds may be remarketed.

Approximately $84 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Houston were redeemed on June 2, 2014 at 100% of their principal amount plus accrued interest. The bonds had an interest rate of 4.25%, were scheduled to mature in 2017 and were collateralized by general mortgage bonds of CenterPoint Houston.

Transition and System Restoration Bonds. As of December 31, 2014, CenterPoint Houston had special purpose subsidiaries consisting of transition and system restoration bond companies, which it consolidates. The consolidated special purpose subsidiaries are wholly owned bankruptcy remote entities that were formed solely for the purpose of purchasing and owning transition or system restoration property through the issuance of transition bonds or system restoration bonds and activities incidental thereto. These transition bonds and system restoration bonds are payable only through the imposition and collection of “transition” or “system restoration” charges, as defined in the Texas Public Utility Regulatory Act, which are irrevocable, non-bypassable charges payable by most of CenterPoint Houston’s retail electric customers in order to provide recovery of authorized qualified costs. CenterPoint Houston has no payment obligations in respect of the transition and system restoration bonds other than to remit the applicable transition or system restoration charges it collects. Each special purpose entity is the sole owner of the right to impose, collect and receive the applicable transition or system restoration charges securing the bonds issued by that entity. Creditors of CenterPoint Energy or CenterPoint Houston have no recourse to any assets or revenues of the transition and system restoration bond companies (including the transition and system restoration charges), and the holders of transition bonds or system restoration bonds have no recourse to the assets or revenues of CenterPoint Energy or CenterPoint Houston.

Credit Facilities. As of December 31, 2014 and 2013, CenterPoint Energy, CenterPoint Houston and CERC Corp. had the following revolving credit facilities and utilization of such facilities (in millions):

			December 31, 2014						December 31, 2013
	Size of Facility		Loans		Letters of Credit		Commercial Paper		Loans		Letters of Credit		Commercial Paper
CenterPoint Energy	$	1,200	$	—	$	6	$	191	$	—	$	6	$	—
CenterPoint Houston	300		—		4		—		—		4		—
CERC Corp.	600		—		—		341		—		—		118
Total	$	2,100	$	—	$	10	$	532	$	—	$	10	$	118

CenterPoint Energy’s $1.2 billion revolving credit facility, which is scheduled to terminate on September 9, 2019, can be drawn at the London Interbank Offered Rate (LIBOR) plus 1.25% based on CenterPoint Energy’s current credit ratings. The revolving credit facility contains a financial covenant which limits CenterPoint Energy’s consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of CenterPoint Energy’s consolidated capitalization. The financial covenant limit will temporarily increase from 65% to 70% if CenterPoint Houston experiences damage from a natural disaster in its service territory and CenterPoint Energy certifies to the administrative agent that CenterPoint Houston has incurred system restoration costs reasonably likely to exceed $100 million in a consecutive twelve-month period, all or part of which CenterPoint Houston intends to seek to recover through securitization financing. Such temporary increase in the financial covenant would be in effect from the date CenterPoint Energy delivers its certification until the earliest to occur of (i) the completion of the securitization financing, (ii) the first anniversary of CenterPoint Energy’s certification or (iii) the revocation of such certification.

CenterPoint Houston’s $300 million revolving credit facility, which is scheduled to terminate on September 9, 2019, can be drawn at LIBOR plus 1.125% based on CenterPoint Houston’s current credit ratings. The revolving credit facility contains a financial covenant which limits CenterPoint Houston’s consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of CenterPoint Houston’s consolidated capitalization.

CERC Corp.’s $600 million revolving credit facility, which is scheduled to terminate on September 9, 2019, can be drawn at LIBOR plus 1.50% based on CERC Corp.’s current credit ratings. The revolving credit facility contains a financial covenant which limits CERC’s consolidated debt to an amount not to exceed 65% of CERC’s consolidated capitalization.

CenterPoint Energy, CenterPoint Houston and CERC Corp. were in compliance with all financial debt covenants as of December 31, 2014.

Maturities.  CenterPoint Energy’s maturities of long-term debt, capital leases and sinking fund requirements, excluding the ZENS obligation, are $641 million in 2015, $716 million in 2016, $911 million in 2017, $1.1 billion in 2018 and $1.0 billion in 2019.  These maturities include transition and system restoration bond principal repayments on scheduled payment dates aggregating $372 million in 2015, $391 million in 2016, $411 million in 2017, $434 million in 2018 and $458 million in 2019.

Liens.  As of December 31, 2014, CenterPoint Houston’s assets were subject to liens securing approximately $102 million of first mortgage bonds. Sinking or improvement fund and replacement fund requirements on the first mortgage bonds may be satisfied by certification of property additions. Sinking fund and replacement fund requirements for 2014, 2013 and 2012 have been satisfied by certification of property additions. The replacement fund requirement to be satisfied in 2015 is approximately $209 million, and the sinking fund requirement to be satisfied in 2015 is approximately $1.6 million. CenterPoint Energy expects CenterPoint Houston to meet these 2015 obligations by certification of property additions. As of December 31, 2014, CenterPoint Houston’s assets were also subject to liens securing approximately $2.4 billion of general mortgage bonds which are junior to the liens of the first mortgage bonds.

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Reportable Business Segments

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Reportable Business Segments

Reportable Business Segments

CenterPoint Energy’s determination of reportable business segments considers the strategic operating units under which CenterPoint Energy manages sales, allocates resources and assesses performance of various products and services to wholesale or retail customers in differing regulatory environments. CenterPoint Energy uses operating income as the measure of profit or loss for its business segments.

CenterPoint Energy’s reportable business segments include the following: Electric Transmission & Distribution, Natural Gas Distribution, Energy Services, Midstream Investments and Other Operations. The electric transmission and distribution function (CenterPoint Houston) is reported in the Electric Transmission & Distribution business segment. Natural Gas Distribution consists of intrastate natural gas sales to, and natural gas transportation and distribution for, residential, commercial, industrial and institutional customers. Energy Services represents CenterPoint Energy’s non-rate regulated gas sales and services operations. Midstream Investments consists primarily of CenterPoint Energy’s investment in Enable and its retained interest in SESH. Other Operations consists primarily of other corporate operations which support all of CenterPoint Energy’s business operations.

Prior to May 1, 2013, CenterPoint Energy also reported an Interstate Pipelines business segment, which included CenterPoint Energy’s interstate natural gas pipeline operations, and a Field Services business segment, which included CenterPoint Energy’s non-rate regulated natural gas gathering, processing and treating operations. The formation of Enable closed on May 1, 2013. Enable now owns substantially all of CenterPoint Energy’s former Interstate Pipelines and Field Services business segments, except for a 0.1% interest in SESH. As a result, effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable and equity earnings associated with its interest in SESH under its Midstream Investments segment, and no longer has Interstate Pipelines and Field Services reporting segments prospectively.

Long-lived assets include net property, plant and equipment, goodwill and other intangibles and equity investments in unconsolidated subsidiaries. Intersegment sales are eliminated in consolidation.

Financial data for business segments and products and services are as follows (in millions):

	Revenues from External Customers			Intersegment Revenues			Depreciation and Amortization		Operating Income (Loss)			Total Assets				Expenditures for Long-Lived Assets
As of and for the year ended December 31, 2014:
Electric Transmission & Distribution	$	2,845	(1)	$	—		$	768	$	595		$	10,066			$	818
Natural Gas Distribution	3,271			30			201		287			5,464				525
Energy Services	3,095			84			5		52			978				3
Midstream Investments (2)	—			—			—		—			4,521				—
Other	15			—			39		1			3,368			(3)	56
Reconciling Eliminations	—			(114		)	—		—			(1,197		)		—
Consolidated	$	9,226		$	—		$	1,013	$	935		$	23,200			$	1,402
As of and for the year ended December 31, 2013:
Electric Transmission & Distribution	$	2,570	(1)	$	—		$	685	$	607		$	9,605			$	759
Natural Gas Distribution	2,837			26			185		263			4,976				430
Energy Services	2,374			27			5		13			895				3
Interstate Pipelines (4) (6)	133			53			20		72			—				29
Field Services (5) (6)	178			18			20		73			—				16
Midstream Investments (2)	—			—			—		—			4,518				—
Other	14			—			39		(18		)	3,026			(3)	35
Reconciling Eliminations	—			(124		)	—		—			(1,150		)		—
Consolidated	$	8,106		$	—		$	954	$	1,010		$	21,870			$	1,272
As of and for the year ended December 31, 2012:
Electric Transmission & Distribution	$	2,540	(1)	$	—		$	729	$	639		$	11,174			$	599
Natural Gas Distribution	2,320			22			173		226			4,775				359
Energy Services	1,758			26			6		(250		)	839				6
Interstate Pipelines (4)	356			146			56		207			4,004				132
Field Services (5)	467			39			50		214			2,453				52
Other	11			—			36		2			2,600			(3)	40
Reconciling Eliminations	—			(233		)	—		—			(2,974		)		—
Consolidated	$	7,452		$	—		$	1,050	$	1,038		$	22,871			$	1,188

(1) Sales to affiliates of NRG in 2014, 2013 and 2012 represented approximately $735 million, $658 million and $648 million, respectively, of CenterPoint Houston’s transmission and distribution revenues. Sales to affiliates of Energy Future Holdings Corp. in 2014, 2013 and 2012 represented approximately $189 million, $167 million and $162 million, respectively, of CenterPoint Houston’s transmission and distribution revenues.

(2) Midstream Investments reported equity earnings of $303 million from Enable and $5 million of equity earnings from CenterPoint Energy’s interest in SESH for the year ended December 31, 2014. Midstream Investments reported equity earnings of $173 million from Enable and $8 million of equity earnings from CenterPoint Energy’s interest in SESH for the eight months ended December 31, 2013. Included in total assets of Midstream Investments as of December 31, 2014 and 2013 is $4,520 million and $4,319 million, respectively, related to CenterPoint Energy’s investment in Enable and $1 million and $199 million related to CenterPoint Energy’s retained interest in SESH, respectively.

(3) Included in total assets of Other Operations as of December 31, 2014, 2013 and 2012, are pension and other postemployment related regulatory assets of $795 million, $627 million and $832 million, respectively.

(4) Interstate Pipelines recorded equity income of $7 million and $26 million in the years ended December 31, 2013 and 2012, respectively, from its interest in SESH, a jointly-owned pipeline. These amounts are included in Equity in earnings of unconsolidated affiliates under the Other Income (Expense) caption.  Interstate Pipelines’ investment in SESH was $404 million as of December 31, 2012, and is included in Investment in unconsolidated affiliates. As discussed above, effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable and equity earnings associated with its interest in SESH under its Midstream Investments segment, and no longer has an Interstate Pipelines reporting segment prospectively.

(5) Field Services recorded equity income of $5 million for the year ended December 31, 2012 from its interest in Waskom. This amount is included in Equity in earnings of unconsolidated affiliates under the Other Income (Expense) caption. Beginning on August 1, 2012, financial results for Waskom are included in operating income due to the July 31, 2012 purchase of the 50% interest in Waskom that CenterPoint Energy did not already own. CenterPoint Energy contributed 100% interest in Waskom to Enable on May 1, 2013. Effective May 1, 2013, CenterPoint Energy reports equity earnings associated with its interest in Enable under its Midstream Investments segment, and no longer has a Field Services reporting segment prospectively.

(6) Results reflected in the year ended December 31, 2013 represent only January 2013 through April 2013.

	Year Ended December 31,
Revenues by Products and Services:	2014		2013		2012
Electric delivery	$	2,845	$	2,570	$	2,540
Retail gas sales	5,049		4,150		3,328
Wholesale gas sales	1,159		913		613
Gas transportation and processing	38		345		847
Energy products and services	135		128		124
Total	$	9,226	$	8,106	$	7,452

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Goodwill (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Goodwill [Line Items]
Goodwill	$ 840		$ 840
Goodwill impairment	0		0		252
Natural Gas Distribution [Member]
Goodwill [Line Items]
Goodwill	746		746
Energy Services [Member]
Goodwill [Line Items]
Goodwill	83	[1]	83	[1]	83
Goodwill impairment					252
Other [Member]
Goodwill [Line Items]
Goodwill	$ 11		$ 11

[1] Amounts presented are net of accumulated goodwill impairment charge of $252 million

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Tax Expense

The components of CenterPoint Energy’s income tax expense were as follows:

	Year Ended December 31,
	2014			2013			2012
	(in millions)
Current income tax expense (benefit):
Federal	$	(20	)	$	91		$	—
State	14			23			12
Total current expense (benefit)	(6		)	114			12
Deferred income tax expense (benefit):
Federal	273			370			280
State	7			(14		)	48
Total deferred expense	280			356			328
Total income tax expense	$	274		$	470		$	340

Reconciliation of Expected Federal Income Tax Expense to Actual

A reconciliation of income tax expense using the federal statutory income tax rate to the actual income tax expense and resulting effective income tax rate is as follows:

	Year Ended December 31,
	2014			2013			2012
	(in millions)
Income before income taxes	$	885		$	781		$	757
Federal statutory income tax rate	35.0		%	35.0		%	35.0		%
Expected federal income tax expense	310			273			265
Increase (decrease) in tax expense resulting from:
State income tax expense, net of federal income tax	16			21			39
Amortization of investment tax credit	—			—			(2		)
Tax effect related to the formation of Enable	—			196			—
Decrease in settled and uncertain income tax positions	—			(9		)	(33		)
Goodwill impairment	—			—			88
Tax basis balance sheet adjustments	(29		)	—			—
Other, net	(23		)	(11		)	(17		)
Total	(36		)	197			75
Total income tax expense	$	274		$	470		$	340
Effective tax rate	31.0		%	60.2		%	44.9		%

Tax Assets and Liabilities

The tax effects of temporary differences that give rise to significant portions of deferred tax assets and liabilities were as follows:

	December 31,
	2014			2013
	(in millions)
Deferred tax assets:
Current:
Allowance for doubtful accounts	$	10		$	11
Deferred gas costs	—			7
Other	13			12
Total current deferred tax assets	23			30
Non-current:
Loss and credit carryforwards	69			51
Employee benefits	327			258
Other	89			76
Total non-current deferred tax assets before valuation allowance	485			385
Valuation allowance	(2		)	(2		)
Total non-current deferred tax assets, net of valuation allowance	483			383
Total deferred tax assets, net of valuation allowance	506			413
Deferred tax liabilities:
Current:
Unrealized gain on indexed debt securities	636			541
Unrealized gain on TW securities	65			97
Deferred gas costs	6			—
Total current deferred tax liabilities	707			638
Non-current:
Depreciation	2,201			1,908
Regulatory assets, net	1,228			1,308
Investment in unconsolidated affiliates	1,789			1,590
Other	21			119
Total non-current deferred tax liabilities	5,239			4,925
Total deferred tax liabilities	5,946			5,563
Accumulated deferred income taxes, net	$	5,440		$	5,150

Rollforward of Unrecognized Tax Benefits

Uncertain Income Tax Positions. The following table reconciles the beginning and ending balance of CenterPoint Energy’s unrecognized tax benefits (expenses):

	December 31,
	2014		2013			2012
	(in millions)
Balance, beginning of year	$	—	$	(23	)	$	51
Tax Positions related to prior years:
Reductions	—		(1		)	(75		)
Tax Positions related to current year:
Settlements	—		24			1
Balance, end of year	$	—	$	—		$	(23	)

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CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Current Assets:
Cash and cash equivalents ($290 and $207 related to VIEs, respectively)	$ 298		$ 208
Investment in marketable securities	930		767
Accounts receivable ($58 and $60 related to VIEs, respectively), less bad debt reserve of $26 and $28, respectively	837		851
Accrued unbilled revenues	357		398
Inventory	379		285
Non-trading derivative assets	99		24
Taxes receivable	190		0
Prepaid expense and other current assets ($47 and $41 related to VIEs, respectively)	178		125
Total current assets	3,268		2,658
Property, Plant and Equipment, net	10,502		9,593
Other Assets:
Goodwill	840		840
Regulatory assets ($2,738 and $3,179 related to VIEs, respectively)	3,527		3,726
Notes receivable - affiliated companies	363		363
Non-trading derivative assets	32		10
Investment in unconsolidated affiliates	4,521		4,518
Other	147		162
Total other assets	9,430		9,619
Total Assets	23,200		21,870
Current Liabilities:
Short-term borrowings	53	[1]	43	[1]
Current portion of VIE transition and system restoration bonds long-term debt	372		354
Indexed debt	152		143
Current portion of other long-term debt	271		0
Indexed debt securities derivative	541		455
Accounts payable	716		689
Taxes accrued	161		184
Interest accrued	124		124
Non-trading derivative liabilities	19		17
Accumulated deferred income taxes, net	683		608
Other	383		402
Total current liabilities	3,475		3,019
Other Liabilities:
Accumulated deferred income taxes, net	4,757		4,542
Non-trading derivative liabilities	1		4
Benefit obligations	953		802
Regulatory liabilities	1,206		1,152
Other	251		205
Total other liabilities	7,168		6,705
Long-term Debt:
VIE transition and system restoration bonds	2,674		3,046
Other long-term debt	5,335		4,771
Total long-term debt	8,009		7,817
Commitments and Contingencies (Note 14)
Shareholders’ Equity	4,548		4,329
Total Liabilities and Shareholders’ Equity	$ 23,200		$ 21,870

[1] Includes amounts due or exchangeable within one year of the date noted.

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Background

12 Months Ended

Dec. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Background

Background

CenterPoint Energy, Inc. is a public utility holding company. CenterPoint Energy’s operating subsidiaries own and operate electric transmission and distribution facilities and natural gas distribution facilities and own interests in Enable Midstream Partners, LP (Enable) as described below. As of December 31, 2014, CenterPoint Energy’s indirect wholly owned subsidiaries included:

• CenterPoint Energy Houston Electric, LLC (CenterPoint Houston), which engages in the electric transmission and distribution business in the Texas Gulf Coast area that includes the city of Houston; and

• CenterPoint Energy Resources Corp. (CERC Corp. and, together with its subsidiaries, CERC), which owns and operates natural gas distribution systems (NGD). A wholly owned subsidiary of CERC Corp. offers variable and fixed-price physical natural gas supplies primarily to commercial and industrial customers and electric and gas utilities. As of December 31, 2014, CERC Corp. also owned approximately 55.4% of the limited partner interests in Enable, which owns, operates and develops natural gas and crude oil infrastructure assets.

For a description of CenterPoint Energy’s reportable business segments, see Note 17.

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Indexed Debt Securities (ZENS) and Securities Related to ZENS (Details) (USD $) Share data in Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 13, 2014
TW Securities
TW Securities	$ 767,000,000
Proceeds from Sale and Maturity of Marketable Securities	0	(9,000,000)	0
Gain on TW Securities	163,000,000	236,000,000	154,000,000
TW Securities	930,000,000	767,000,000
Debt component of ZENS
Debt Component of ZENS	143,000,000	138,000,000	131,000,000
Accretion of debt component of ZENS	26,000,000	24,000,000	24,000,000
2 % interest paid	(17,000,000)	(17,000,000)	(17,000,000)
Redemption of Indexed Debt Securities		(2,000,000)
Debt Component of ZENS	152,000,000	143,000,000	138,000,000
Derivative component of ZENS
Derivative Component of ZENS	455,000,000	268,000,000	197,000,000
Redemption of Derivative Indexed Debt Securities		(6,000,000)
Loss (gain) on indexed debt securities	86,000,000	193,000,000	71,000,000
Derivative Component of ZENS	541,000,000	455,000,000	268,000,000
TW Common [Member]
Schedule of Trading Securities [Line Items]
Number of shares of common stock held by subsidiary of CenterPoint Energy (in shares)	7.1
TWC Common [Member]
Schedule of Trading Securities [Line Items]
Number of shares of common stock held by subsidiary of CenterPoint Energy (in shares)	1.8
AOL Common [Member]
Schedule of Trading Securities [Line Items]
Number of shares of common stock held by subsidiary of CenterPoint Energy (in shares)	0.6
Time Common [Member]
Schedule of Trading Securities [Line Items]
Number of shares of common stock held by subsidiary of CenterPoint Energy (in shares)	0.9
TW Securities [Member]
TW Securities
TW Securities	767,000,000	540,000,000	386,000,000
Proceeds from Sale and Maturity of Marketable Securities		(9,000,000)
Gain on TW Securities	163,000,000	236,000,000	154,000,000
TW Securities	930,000,000	767,000,000	540,000,000
Subordinated Debt ZENS Member
Zero Premium Exchangeable Subordinated Notes [Abstract]
Original principal amount of Zero Premium Exchangeable Subordinated Notes issued by CenterPoint Energy in September 1999	1,000,000,000
Long-term Debt, Gross	828,000,000
Percentage of market value of referenced shares of Time Warner Common each zero premium exchangeable subordinated note could be exchanged for cash (in hundredths)	95.00%
Debt Instrument, Interest Rate, Stated Percentage (in hundredths)	2.00%
Referenced common shares
Target annual yield from interest and cash dividends on referenced shares before principal amount of indexed debt securities is increased or decreased (in hundredths)	2.309%
Contingent principal amount of indexed debt securities issued by CenterpPoint Energy in September 1999 and outstanding and exchangeable	751,000,000
The cash exchange amount from referenced shares per $1,000 face amount of individual notes	1,067
Face amount of each indexed debt security notes issued by CenterPoint Energy in September 1999	$ 1,000
The accretion rate for interest charges on bifurcated debt component of indexed debt securities (in hundredths)	17.30%
Subordinated Debt ZENS Member | TW Common [Member]
Referenced common shares
The referenced shares of common stock for each zero premium exchangeable subordinated note (in shares)	0.5
Subordinated Debt ZENS Member | TWC Common [Member]
Referenced common shares
The referenced shares of common stock for each zero premium exchangeable subordinated note (in shares)	0.125505
Subordinated Debt ZENS Member | AOL Common [Member]
Referenced common shares
The referenced shares of common stock for each zero premium exchangeable subordinated note (in shares)	0.045455
Subordinated Debt ZENS Member | Time Common [Member]
Referenced common shares
The referenced shares of common stock for each zero premium exchangeable subordinated note (in shares)	0.0625
Subordinated Debt ZENS Member | Comcast Common [Member]
Referenced common shares
The referenced shares of common stock for each zero premium exchangeable subordinated note (in shares)				0.360827
Conversion ratio of shares referenced in exchangeable subordinated note				2.875

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Schedule I: Financial Information of CenterPoint Energy, Inc. (Parent Company) (Statements of Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013		Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Income (Expense):
Other Income (Expense)											$ 36	$ 24	$ 38
Loss on Indexed Debt Securities											(86)	(193)	(71)
Interest Expense											(353)	(351)	(422)
Total											(50)	(229)	(281)
Income Tax Benefit											(274)	(470)	(340)
Net Income	176	[1]	143	107	185	113	151	(100)	[2]	147	611	311	417
CenterPoint Energy [Member]
Expenses:
Operation and Maintenance Expenses											(22)	(13)	(20)
Total											(22)	(13)	(20)
Other Income (Expense):
Interest Income from Subsidiaries											0	8	10
Other Income (Expense)											(1)	(5)	6
Loss on Indexed Debt Securities											(86)	(193)	(71)
Interest Expense to Subsidiaries											0	(24)	(25)
Interest Expense											(103)	(104)	(112)
Total											(190)	(318)	(192)
Loss Before Income Taxes, Equity in Subsidiaries											(212)	(331)	(212)
Income Tax Benefit											115	137	87
Loss Before Equity in Subsidiaries											(97)	(194)	(125)
Equity Income of Subsidiaries											708	505	542
Net Income											$ 611	$ 311	$ 417

[1] CenterPoint Energy recognized a $29 million deferred income tax benefit upon completion of its tax basis balance sheet review.

[2] Effective May 1, 2013, CenterPoint Energy contributed CenterPoint Midstream to Enable. See Note 2(b) and Note 9 for further discussion on the formation of Enable and CenterPoint Energy’s investment in Enable, respectively.

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Subsequent Events

12 Months Ended

Dec. 31, 2014

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

On January 22, 2015, CenterPoint Energy’s board of directors declared a regular quarterly cash dividend of $0.2475 per share of common stock payable on March 10, 2015, to shareholders of record as of the close of business on February 13, 2015.

On January 23, 2015, Enable declared a quarterly cash distribution of $0.30875 per unit on all of its outstanding common and subordinated units for the quarter ended December 31, 2014. Accordingly, CERC Corp. expects to receive a cash distribution of approximately $72 million from Enable in the first quarter of 2015 to be made with respect to CERC Corp.’s limited partner interest in Enable for the fourth quarter of 2014.

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Schedule II - Valuation and Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Uncollectible accounts receivable [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 28		$ 25		$ 25
Additions Charged to Income	22		21		16
Additions Charged to Other Accounts	2		1		1
Deductions From Reserves	26	[1]	19	[1]	17	[1]
Balance at End of Period	26		28		25
Deferred tax asset valuation allowance [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	2		2		4
Additions Charged to Income	0		0
Additions Charged to Other Accounts	0		0
Deductions From Reserves	0	[1]	0	[1]	0	[1]
Valuation Allowances and Reserves Deducted From Cost and Expense					(1)
Valuation Allowances and Reserves, Addition to Other Accounts					(1)
Balance at End of Period	$ 2		$ 2		$ 2

[1] Deductions from reserves represent losses or expenses for which the respective reserves were created. In the case of the uncollectible accounts reserve, such deductions are net of recoveries of amounts previously written off.

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Unconsolidated Affiliates (Tables)

12 Months Ended

Dec. 31, 2014

Schedule of Equity Method Investments [Line Items]

Equity Method Investments [Table Text Block]

Investment in Unconsolidated Affiliates:

	Year Ended December 31,
	2014		2013
	(in millions)
Enable	$	4,520	$	4,319
SESH (1)	1		199
Total	$	4,521	$	4,518

(1) On May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

Equity in Earnings of Unconsolidated Affiliates, net:

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Enable (1)	$	303	$	173	$	—
SESH (2)	5		15		26
Waskom (3)	—		—		5
Total	$	308	$	188	$	31

(1) On May 1, 2013, CenterPoint Energy formed Enable with OGE and ArcLight.

(2) On each of May 1, 2013 and May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

(3) On July 31, 2012, Waskom became a wholly owned subsidiary of CenterPoint Energy. Beginning on August 1, 2012, Waskom’s operating results are consolidated on the Statements of Consolidated Income. On May 1, 2013, CenterPoint Energy contributed Waskom to Enable.

Summarized consolidated income information for Enable is as follows:

	Year Ended December 31,
	2014		2013 (1)
	(in millions)
Operating revenues	$	3,367	$	2,123
Cost of sales, excluding depreciation and amortization	1,914		1,241
Operating income	586		322
Net income attributable to Enable	530		289
CenterPoint Energy’s approximate interest	$	298	$	168
Basis difference accretion	5		5
CenterPoint Energy’s equity in earnings, net	$	303	$	173

(1) The amounts included in this column represent the eight month period from formation of Enable on May 1, 2013 through December 31, 2013.

Summarized consolidated balance sheet information for Enable is as follows:

	December 31,
	2014			2013
	(in millions)
Current assets	$	438		$	549
Non-current assets	11,399			10,683
Current liabilities	671			720
Non-current liabilities	2,343			2,331
Non-controlling interest	31			33
Enable partners’ capital	8,792			8,148
CenterPoint Energy’s ownership interest in Enable’s partner capital	$	4,869		$	4,753
CenterPoint Energy’s basis difference attributable to goodwill (1)	(217		)	(229		)
CenterPoint Energy’s accretable basis difference (2)	(132		)	(205		)
CenterPoint Energy’s total basis difference	(349		)	(434		)
CenterPoint Energy’s investment in Enable	$	4,520		$	4,319

(1) The difference relates to CenterPoint Energy’s proportionate share of Enable’s goodwill arising from its acquisition of Enogex, and therefore will be recognized by CenterPoint Energy upon dilution or disposition of its interest in Enable.

(2) The difference will be recognized by CenterPoint Energy over 30 years beginning May 1, 2013. CenterPoint Energy will also adjust the accretable basis difference for dilution or disposition of its interest in Enable.

Enable concluded that the formation of Enable is considered a business combination, and CenterPoint Midstream is the acquirer for accounting purposes.  Under this method, the fair value of the consideration paid by CenterPoint Midstream for Enogex was allocated to the assets acquired and liabilities assumed on the Closing Date based on their fair value.  Enogex’s assets, liabilities and equity were accordingly adjusted to estimated fair value as of May 1, 2013.  Determining the fair value of assets and liabilities is judgmental in nature and involves the use of significant estimates and assumptions.  Enable used appraisers to assist in the determination of the estimated fair value of certain assets and liabilities contributed by Enogex.

Distributions Received from Unconsolidated Affiliates:

	Year Ended December 31,
	2014		2013		2012
	(in millions)
Enable (1)	$	298	$	106	$	—
SESH (2)	7		23		32
Waskom (3)	—		—		7
Total	$	305	$	129	$	39

(1) On May 1, 2013, CenterPoint Energy formed Enable with OGE and ArcLight.

(2) On each of May 1, 2013 and May 30, 2014, CenterPoint Energy contributed a 24.95% interest in SESH to Enable, leaving CenterPoint Energy with a 0.1% interest in SESH as of December 31, 2014.

(3) On July 31, 2012, Waskom became a wholly owned subsidiary of CenterPoint Energy. Beginning on August 1, 2012, Waskom’s operating results are consolidated on the Statements of Consolidated Income. On May 1, 2013, CenterPoint Energy contributed Waskom to Enable.

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Equity

12 Months Ended

Dec. 31, 2014

Stockholders' Equity Note [Abstract]

Equity

Equity

Capital Stock

CenterPoint Energy has 1,020,000,000 authorized shares of capital stock, comprised of 1,000,000,000 shares of $0.01 par value common stock and 20,000,000 shares of $0.01 par value cumulative preferred stock.

Dividends Declared

CenterPoint Energy declared dividends per share of $0.95, $0.83 and $0.81, respectively, during the years ended December 31, 2014, 2013 and 2012.

Undistributed Retained Earnings

As of December 31, 2014 and 2013, CenterPoint Energy’s consolidated retained earnings balance includes undistributed earnings from Enable of $71 million and $67 million, respectively.