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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-Q
    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 2022

or

    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                    to                    

lnt-20220630_g1.jpg

Name of Registrant, State of Incorporation, Address of Principal Executive Offices, Telephone Number, Commission File Number, IRS Employer Identification Number

ALLIANT ENERGY CORPORATION
(a Wisconsin Corporation)
4902 N. Biltmore Lane
Madison, Wisconsin 53718
Telephone (608) 458-3311
Commission File Number - 1-9894
IRS Employer Identification Number - 39-1380265

INTERSTATE POWER & LIGHT COMPANY
(an Iowa corporation)
Alliant Energy Tower
Cedar Rapids, Iowa 52401
Telephone (319) 786-4411
Commission File Number - 1-4117
IRS Employer Identification Number - 42-0331370

WISCONSIN POWER & LIGHT COMPANY
(a Wisconsin corporation)
4902 N. Biltmore Lane
Madison, Wisconsin 53718
Telephone (608) 458-3311
Commission File Number - 0-337
IRS Employer Identification Number - 39-0714890
This combined Form 10-Q is separately filed by Alliant Energy Corporation, Interstate Power and Light Company and Wisconsin Power and Light Company. Information contained in the Form 10-Q relating to Interstate Power and Light Company and Wisconsin Power and Light Company is filed by each such registrant on its own behalf. Each of Interstate Power and Light Company and Wisconsin Power and Light Company makes no representation as to information relating to registrants other than itself.

Securities registered pursuant to Section 12(b) of the Act:
Alliant Energy Corporation, Common Stock, $0.01 Par Value, Trading Symbol LNT, Nasdaq Global Select Market

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.
Alliant Energy Corporation - Yes ☒ No ☐
Interstate Power and Light Company - Yes ☒ No ☐
Wisconsin Power and Light Company - Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).
Alliant Energy Corporation - Yes ☒ No ☐
Interstate Power and Light Company - Yes ☒ No ☐
Wisconsin Power and Light Company - Yes ☒ No ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Alliant Energy Corporation - Large Accelerated Filer ☒ Accelerated Filer ☐ Non-accelerated Filer ☐ Smaller Reporting Company Emerging Growth Company
Interstate Power and Light Company - Large Accelerated Filer ☐ Accelerated Filer ☐ Non-accelerated Filer ☒ Smaller Reporting Company Emerging Growth Company
Wisconsin Power and Light Company - Large Accelerated Filer ☐ Accelerated Filer ☐ Non-accelerated Filer ☒ Smaller Reporting Company Emerging Growth Company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
Alliant Energy Corporation ☐
Interstate Power and Light Company ☐
Wisconsin Power and Light Company ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Alliant Energy Corporation - Yes No ☒
Interstate Power and Light Company - Yes No ☒
Wisconsin Power and Light Company - Yes No ☒
Number of shares outstanding of each class of common stock as of June 30, 2022:
Alliant Energy Corporation, Common Stock, $0.01 par value, 250,926,232 shares outstanding
Interstate Power and Light Company, Common Stock, $2.50 par value, 13,370,788 shares outstanding (all outstanding shares are owned beneficially and of record by Alliant Energy Corporation)
Wisconsin Power and Light Company, Common Stock, $5 par value, 13,236,601 shares outstanding (all outstanding shares are owned beneficially and of record by Alliant Energy Corporation)



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DEFINITIONS
The following abbreviations or acronyms used in this report are defined below:
Abbreviation or AcronymDefinitionAbbreviation or AcronymDefinition
2021 Form 10-K
Combined Annual Report on Form 10-K filed by Alliant Energy, IPL and WPL for the year ended Dec. 31, 2021
IPLInterstate Power and Light Company
AEFAlliant Energy Finance, LLCIUBIowa Utilities Board
AFUDCAllowance for funds used during constructionMDAManagement’s Discussion and Analysis of Financial Condition and Results of Operations
Alliant EnergyAlliant Energy CorporationMISOMidcontinent Independent System Operator, Inc.
ATCAmerican Transmission Company LLCMWMegawatt
ATC HoldingsInterest in American Transmission Company LLC and ATC Holdco LLCMWhMegawatt-hour
Corporate ServicesAlliant Energy Corporate Services, Inc.N/ANot applicable
DAECDuane Arnold Energy CenterNote(s)Combined Notes to Condensed Consolidated Financial Statements
DthDekathermOPEBOther postretirement benefits
EGUElectric generating unitPPAPurchased power agreement
EPAU.S. Environmental Protection AgencyPSCWPublic Service Commission of Wisconsin
EPSEarnings per weighted average common shareSECSecurities and Exchange Commission
FERCFederal Energy Regulatory CommissionU.S.United States of America
Financial StatementsCondensed Consolidated Financial StatementsWest RiversideWest Riverside Energy Center
FTRFinancial transmission rightWhiting PetroleumWhiting Petroleum Corporation
GAAPU.S. generally accepted accounting principlesWPLWisconsin Power and Light Company

FORWARD-LOOKING STATEMENTS

Statements contained in this report that are not of historical fact are forward-looking statements intended to qualify for the safe harbors from liability established by the Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified as such because the statements include words such as “may,” “believe,” “expect,” “anticipate,” “plan,” “project,” “will,” “projections,” “estimate,” or other words of similar import. Similarly, statements that describe future financial performance or plans or strategies are forward-looking statements. Such forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those expressed in, or implied by, such statements. Some, but not all, of the risks and uncertainties of Alliant Energy, IPL and WPL that could materially affect actual results include:

the impact of penalties or third-party claims related to, or in connection with, a failure to maintain the security of personally identifiable information, including associated costs to notify affected persons and to mitigate their information security concerns;
the direct or indirect effects resulting from terrorist incidents, including physical attacks and cyber attacks, or responses to such incidents;
the impact of customer- and third party-owned generation, including alternative electric suppliers, in IPL’s and WPL’s service territories on system reliability, operating expenses and customers’ demand for electricity;
the impact of energy efficiency, franchise retention and customer disconnects on sales volumes and margins;
the impact that price changes may have on IPL’s and WPL’s customers’ demand for electric, gas and steam services and their ability to pay their bills;
IPL’s and WPL’s ability to obtain adequate and timely rate relief to allow for, among other things, the recovery of and/or the return on costs, including fuel costs, operating costs, transmission costs, deferred expenditures, deferred tax assets, tax expense, capital expenditures, and remaining costs related to EGUs that may be permanently closed and certain other retired assets, decreases in sales volumes, earning their authorized rates of return, and the payments to their parent of expected levels of dividends;
federal and state regulatory or governmental actions, including the impact of legislation, and regulatory agency orders;
the ability to utilize tax credits and net operating losses generated to date, and those that may be generated in the future, before they expire;
the impacts of changes in the tax code, including tax rates, minimum tax rates, and adjustments made to deferred tax assets and liabilities;
the ability to complete construction of renewable generation and storage projects by planned in-service dates and within the cost targets set by regulators due to cost increases of and access to materials, equipment and commodities including due to tariffs, duties or other assessments, such as any additional tariffs resulting from U.S. Department of Commerce investigations into the sourcing of solar project materials and equipment from certain countries, labor issues or supply shortages, the ability to successfully resolve warranty issues or contract disputes, the ability to achieve the expected level of tax benefits based on tax guidelines and project costs, and the ability to efficiently utilize the renewable generation and storage project tax benefits for the benefit of customers;
employee workforce factors, including changes in key executives, ability to hire and retain employees with specialized skills, ability to create desired corporate culture, collective bargaining agreements and negotiations, work stoppages or restructurings;
inflation and higher interest rates;
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changes in the price of delivered natural gas, transmission, purchased electricity and coal, particularly during elevated market prices, and any resulting changes to counterparty credit risk, due to shifts in supply and demand caused by market conditions, regulations and MISO’s annual resource adequacy process;
changes to the creditworthiness of, or performance of obligations by, counterparties with which Alliant Energy, IPL and WPL have contractual arrangements, including participants in the energy markets and fuel suppliers and transporters;
any material post-closing payments related to any past asset divestitures, including the sale of Whiting Petroleum, which could result from, among other things, indemnification agreements, warranties, guarantees or litigation;
weather effects on results of utility operations;
the direct or indirect effects resulting from the ongoing novel coronavirus (COVID-19) pandemic and the spread of variant strains, including any vaccine mandates and testing requirements, on sales volumes, margins, operations, employees, labor markets, contractors, vendors, the ability to complete construction projects, supply chains, customers’ inability to pay bills, suspension of disconnects, the market value of the assets that fund pension plans and the potential for additional funding requirements, the ability of counterparties to meet their obligations, compliance with regulatory requirements, the ability to implement regulatory plans, economic conditions and access to capital markets;
issues associated with environmental remediation and environmental compliance, including compliance with all environmental and emissions permits, the Coal Combustion Residuals Rule, future changes in environmental laws and regulations, including federal, state or local regulations for carbon dioxide emissions reductions from new and existing fossil-fueled EGUs, and litigation associated with environmental requirements;
increased pressure from customers, investors and other stakeholders to more rapidly reduce carbon dioxide emissions;
the ability to defend against environmental claims brought by state and federal agencies, such as the EPA, state natural resources agencies or third parties, such as the Sierra Club, and the impact on operating expenses of defending and resolving such claims;
continued access to the capital markets on competitive terms and rates, and the actions of credit rating agencies;
disruptions to ongoing operations and the supply of materials, services, equipment and commodities needed to construct solar generation, battery storage and electric and gas distribution projects, which may result from geopolitical issues, supplier manufacturing constraints, labor issues or transportation issues, as well as affect the ability to meet capacity requirements and result in increased capacity expense;
possible changes to MISO’s methodology establishing capacity planning reserve margin and capacity accreditation requirements that may impact how and when new generating facilities such as IPL’s and WPL’s additional solar generation may be accredited with energy capacity and may require IPL and WPL to adjust their current resource plans, the need to add resources to comply with MISO’s proposal, or procure capacity in the market whereby such costs might not be recovered in rates;
disruptions in the supply and delivery of natural gas, purchased electricity and coal;
the direct or indirect effects resulting from breakdown or failure of equipment in the operation of electric and gas distribution systems, such as mechanical problems and explosions or fires, and compliance with electric and gas transmission and distribution safety regulations, including regulations promulgated by the Pipeline and Hazardous Materials Safety Administration;
issues related to the availability and operations of EGUs, including start-up risks, breakdown or failure of equipment, availability of warranty coverage for equipment breakdowns or failures, performance below expected or contracted levels of output or efficiency, operator error, employee safety, transmission constraints, compliance with mandatory reliability standards and risks related to recovery of resulting incremental operating, fuel-related and capital costs through rates;
impacts that excessive heat, excessive cold, storms or natural disasters may have on Alliant Energy’s, IPL’s and WPL’s operations and recovery of costs associated with restoration activities or on the operations of Alliant Energy’s investments;
Alliant Energy’s ability to sustain its dividend payout ratio goal;
changes to costs of providing benefits and related funding requirements of pension and OPEB plans due to the market value of the assets that fund the plans, economic conditions, financial market performance, interest rates, timing and form of benefits payments, life expectancies and demographics;
material changes in employee-related benefit and compensation costs, including settlement losses related to pension plans;
risks associated with operation and ownership of non-utility holdings;
changes in technology that alter the channels through which customers buy or utilize Alliant Energy’s, IPL’s or WPL’s products and services;
impacts on equity income from unconsolidated investments from valuations and potential changes to ATC’s authorized return on equity;
impacts of IPL’s future tax benefits from Iowa rate-making practices, including deductions for repairs expenditures, allocation of mixed service costs and state depreciation, and recoverability of the associated regulatory assets from customers, when the differences reverse in future periods;
current or future litigation, regulatory investigations, proceedings or inquiries;
reputational damage from negative publicity, protests, fines, penalties and other negative consequences resulting in regulatory and/or legal actions;
the effect of accounting standards issued periodically by standard-setting bodies;
the ability to successfully complete tax audits and changes in tax accounting methods with no material impact on earnings and cash flows; and
other factors listed in MDA and Risk Factors in Item 1A in the 2021 Form 10-K.
Alliant Energy, IPL and WPL each assume no obligation, and disclaim any duty, to update the forward-looking statements in this report, except as required by law.
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PART I. FINANCIAL INFORMATION
ITEM 1. CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
ALLIANT ENERGY CORPORATION
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
For the Three MonthsFor the Six Months
Ended June 30,Ended June 30,
2022202120222021
(in millions, except per share amounts)
Revenues:
Electric utility$812$717$1,586$1,418
Gas utility9469356239
Other utility13102323
Non-utility24214738
Total revenues9438172,0121,718
Operating expenses:
Electric production fuel and purchased power191138359271
Electric transmission service133121271255
Cost of gas sold4831216131
Other operation and maintenance166160320306
Depreciation and amortization166165332329
Taxes other than income taxes27265452
Total operating expenses7316411,5521,344
Operating income212176460374
Other (income) and deductions:
Interest expense7869152138
Equity income from unconsolidated investments, net(16)(19)(32)(34)
Allowance for funds used during construction(13)(5)(24)(9)
Other214
Total other (income) and deductions49479799
Income before income taxes163129363275
Income tax expense (benefit)4(17)12(45)
Net income159146351320
Preferred dividend requirements of Interstate Power and Light Company25
Net income attributable to Alliant Energy common shareowners$159$144$351$315
Weighted average number of common shares outstanding:
Basic250.9250.2250.7250.1
Diluted251.1250.6251.0250.5
Earnings per weighted average common share attributable to Alliant Energy common shareowners:
Basic$0.63$0.58$1.40$1.26
Diluted$0.63$0.57$1.40$1.26

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.
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ALLIANT ENERGY CORPORATION
CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)
June 30,
2022
December 31,
2021
(in millions, except per
share and share amounts)
ASSETS
Current assets:
Cash and cash equivalents$19$39
Accounts receivable, less allowance for expected credit losses490440
Production fuel, at weighted average cost5551
Gas stored underground, at weighted average cost6482
Materials and supplies, at weighted average cost121113
Regulatory assets188104
Other371240
Total current assets (a)1,3081,069
Property, plant and equipment, net (a)15,45314,987
Investments:
ATC Holdings351338
Other195179
Total investments546517
Other assets:
Regulatory assets1,8631,836
Deferred charges and other221144
Total other assets2,0841,980
Total assets$19,391$18,553
LIABILITIES AND EQUITY
Current liabilities:
Current maturities of long-term debt$733$633
Commercial paper399515
Accounts payable584436
Accrued taxes5858
Regulatory liabilities218186
Other284226
Total current liabilities2,2762,054
Long-term debt, net (excluding current portion)6,9816,735
Other liabilities:
Deferred tax liabilities1,9711,927
Regulatory liabilities1,1451,085
Pension and other benefit obligations356374
Other496388
Total other liabilities (a)3,9683,774
Commitments and contingencies (Note 13)
Equity:
Alliant Energy Corporation common equity:
Common stock - $0.01 par value - 480,000,000 shares authorized; 250,926,232 and 250,474,529 shares outstanding
33
Additional paid-in capital2,7592,749
Retained earnings3,3873,250
Shares in deferred compensation trust - 388,363 and 383,532 shares at a weighted average cost of $31.72 and $30.59 per share
(12)(12)
Total Alliant Energy Corporation common equity6,1375,990
Noncontrolling interest29
Total equity6,1665,990
Total liabilities and equity$19,391$18,553
(a)As of June 30, 2022, Alliant Energy’s assets of a consolidated VIE that may be used only to settle obligations of that VIE include $1 million of current assets and $428 million of property, plant and equipment, net, and Alliant Energy’s liabilities of that VIE that creditors do not have recourse to include $8 million of other liabilities. Refer to Note 1(b) for additional information.

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.
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ALLIANT ENERGY CORPORATION
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)
For the Six Months
Ended June 30,
20222021
(in millions)
Cash flows from operating activities:
Net income$351$320
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization
332329
Deferred tax expense (benefit) and tax credits12(42)
Other(16)2
Other changes in assets and liabilities:
Accounts receivable(283)(265)
Derivative assets(183)(68)
Regulatory assets(116)4
Accounts payable9511
Regulatory liabilities74(69)
Derivative liabilities86(22)
Deferred income taxes3493
Pension and other benefit obligations(18)(34)
Other(68)(52)
Net cash flows from operating activities300207
Cash flows used for investing activities:
Construction and acquisition expenditures:
Utility business(550)(426)
Other(43)(32)
Cash receipts on sold receivables233295
Other(10)(27)
Net cash flows used for investing activities(370)(190)
Cash flows from (used for) financing activities:
Common stock dividends(215)(203)
Proceeds from issuance of long-term debt650
Payments to retire long-term debt(304)(4)
Net change in commercial paper(116)146
Contributions from noncontrolling interest29
Other64
Net cash flows from (used for) financing activities50(57)
Net decrease in cash, cash equivalents and restricted cash(20)(40)
Cash, cash equivalents and restricted cash at beginning of period4056
Cash, cash equivalents and restricted cash at end of period$20$16
Supplemental cash flows information:
Cash paid during the period for:
Interest($146)($137)
Income taxes, net($4)($1)
Significant non-cash investing and financing activities:
Accrued capital expenditures$200$139
Beneficial interest obtained in exchange for securitized accounts receivable$244$154

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.
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INTERSTATE POWER AND LIGHT COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
For the Three MonthsFor the Six Months
Ended June 30,Ended June 30,
2022202120222021
(in millions)
Revenues:
Electric utility$442$402$843$788
Gas utility5243191134
Steam and other12102222
Total revenues5064551,056944
Operating expenses:
Electric production fuel and purchased power8355150114
Electric transmission service9179188171
Cost of gas sold272211272
Other operation and maintenance8781171158
Depreciation and amortization9593189187
Taxes other than income taxes14142828
Total operating expenses397344838730
Operating income109111218214
Other (income) and deductions:
Interest expense37347469
Allowance for funds used during construction(3)(3)(5)(5)
Other2(1)2
Total other (income) and deductions34336866
Income before income taxes7578150148
Income tax benefit(12)(10)(23)(22)
Net income8788173170
Preferred dividend requirements25
Net income available for common stock$87$86$173$165
Earnings per share data is not disclosed given Alliant Energy Corporation is the sole shareowner of all shares of IPL’s common stock outstanding during the periods presented.
Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.
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INTERSTATE POWER AND LIGHT COMPANY
CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)
June 30,
2022
December 31,
2021
(in millions, except per
share and share amounts)
ASSETS
Current assets:
Cash and cash equivalents$13$34
Accounts receivable, less allowance for expected credit losses269241
Income tax refunds receivable88
Production fuel, at weighted average cost3729
Gas stored underground, at weighted average cost2740
Materials and supplies, at weighted average cost7370
Regulatory assets11173
Other14969
Total current assets687564
Property, plant and equipment, net7,9977,983
Other assets:
Regulatory assets1,3791,370
Deferred charges and other12179
Total other assets1,5001,449
Total assets$10,184$9,996
LIABILITIES AND EQUITY
Current liabilities:
Accounts payable$225$173
Accounts payable to associated companies3739
Regulatory liabilities10084
Accrued taxes5156
Accrued interest3536
Other11567
Total current liabilities563455
Long-term debt, net3,6453,643
Other liabilities:
Deferred tax liabilities1,1061,083
Regulatory liabilities651607
Pension and other benefit obligations121127
Other316312
Total other liabilities2,1942,129
Commitments and contingencies (Note 13)
Equity:
Interstate Power and Light Company common equity:
Common stock - $2.50 par value - 24,000,000 shares authorized; 13,370,788 shares outstanding
3333
Additional paid-in capital2,8072,807
Retained earnings942929
Total Interstate Power and Light Company common equity3,7823,769
Total liabilities and equity$10,184$9,996

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.
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INTERSTATE POWER AND LIGHT COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)
For the Six Months
Ended June 30,
20222021
(in millions)
Cash flows from operating activities:
Net income$173$170
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization189187
Other(9)(13)
Other changes in assets and liabilities:
Accounts receivable(256)(270)
Derivative assets(123)(27)
Regulatory assets(52)(14)
Accounts payable671
Regulatory liabilities53(36)
Derivative liabilities63(11)
Deferred income taxes2430
Other(46)1
Net cash flows from operating activities8318
Cash flows from investing activities:
Construction and acquisition expenditures(172)(191)
Cash receipts on sold receivables233295
Other(1)(6)
Net cash flows from investing activities6098
Cash flows used for financing activities:
Common stock dividends(160)(200)
Capital contributions from parent50
Other(4)(5)
Net cash flows used for financing activities(164)(155)
Net decrease in cash, cash equivalents and restricted cash(21)(39)
Cash, cash equivalents and restricted cash at beginning of period3450
Cash, cash equivalents and restricted cash at end of period$13$11
Supplemental cash flows information:
Cash (paid) refunded during the period for:
Interest($74)($69)
Income taxes, net$19$27
Significant non-cash investing and financing activities:
Accrued capital expenditures$45$32
Beneficial interest obtained in exchange for securitized accounts receivable$244$154

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.
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WISCONSIN POWER AND LIGHT COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
For the Three MonthsFor the Six Months
Ended June 30,Ended June 30,
2022202120222021
(in millions)
Revenues:
Electric utility$370$315$743$630
Gas utility4226165105
Other111
Total revenues413341909736
Operating expenses:
Electric production fuel and purchased power10884209158
Electric transmission service41428384
Cost of gas sold21910459
Other operation and maintenance6769123128
Depreciation and amortization6970139139
Taxes other than income taxes12122423
Total operating expenses318286682591
Operating income9555227145
Other (income) and deductions:
Interest expense28265552
Allowance for funds used during construction(10)(2)(18)(4)
Other