10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

________________________________________

FORM 10-Q

________________________________________

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2018

or

¨ 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: 001-32886

____________________________________

CONTINENTAL RESOURCES, INC.

(Exact name of registrant as specified in its charter)

____________________________________

Oklahoma	73-0767549
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
20 N. Broadway, Oklahoma City, Oklahoma	73102
(Address of principal executive offices)	(Zip Code)

(405) 234-9000

(Registrant’s telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

____________________________________

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 x    No ¨

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 x    No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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.

Large accelerated filer	x	Accelerated filer	¨
Non-accelerated filer	¨  (Do not check if a smaller reporting company)	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. ¨

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

376,037,498 shares of our $0.01 par value common stock were outstanding on July 31, 2018.

Table of Contents

PART I. Financial Information
Item 1.	Financial Statements	1
	Condensed Consolidated Balance Sheets	1
	Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss)	2
	Condensed Consolidated Statement of Shareholders’ Equity	3
	Unaudited Condensed Consolidated Statements of Cash Flows	4
	Notes to Unaudited Condensed Consolidated Financial Statements	5
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	20
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	33
Item 4.	Controls and Procedures	35
PART II. Other Information
Item 1.	Legal Proceedings	36
Item 1A.	Risk Factors	36
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	36
Item 3.	Defaults Upon Senior Securities	36
Item 4.	Mine Safety Disclosures	36
Item 5.	Other Information	36
Item 6.	Exhibits	37
	Signature	38

When we refer to “us,” “we,” “our,” “Company,” or “Continental” we are describing Continental Resources, Inc. and our subsidiaries.

Glossary of Crude Oil and Natural Gas Terms

The terms defined in this section may be used throughout this report:

“Bbl” One stock tank barrel, of 42 U.S. gallons liquid volume, used herein in reference to crude oil, condensate or natural gas liquids.

“Boe” Barrels of crude oil equivalent, with six thousand cubic feet of natural gas being equivalent to one barrel of crude oil based on the average equivalent energy content of the two commodities.

“Btu” British thermal unit, which represents the amount of energy needed to heat one pound of water by one degree Fahrenheit and can be used to describe the energy content of fuels.

“completion” The process of treating a drilled well followed by the installation of permanent equipment for the production of crude oil and/or natural gas.

“developed acreage” The number of acres allocated or assignable to productive wells or wells capable of production.

“development well” A well drilled within the proved area of a crude oil or natural gas reservoir to the depth of a stratigraphic horizon known to be productive.

“dry hole” Exploratory or development well that does not produce crude oil and/or natural gas in economically producible quantities.

“exploratory well” A well drilled to find crude oil or natural gas in an unproved area, to find a new reservoir in an existing field previously found to be productive of crude oil or natural gas in another reservoir, or to extend a known reservoir beyond the proved area.

“field” An area consisting of a single reservoir or multiple reservoirs all grouped on, or related to, the same individual geological structural feature or stratigraphic condition. The field name refers to the surface area, although it may refer to both the surface and the underground productive formations.

“formation” A layer of rock which has distinct characteristics that differs from nearby rock.

"gross acres" or "gross wells" Refers to the total acres or wells in which a working interest is owned.

“MBbl” One thousand barrels of crude oil, condensate or natural gas liquids.

“MBoe” One thousand Boe.

“Mcf” One thousand cubic feet of natural gas.

“MMBoe” One million Boe.

“MMBtu” One million British thermal units.

“MMcf” One million cubic feet of natural gas.

“net acres” or "net wells" Refers to the sum of the fractional working interests owned in gross acres or gross wells.

"Net crude oil and natural gas sales" Represents total crude oil and natural gas sales less total transportation expenses.

"Net sales price" Represents the average net wellhead sales price received by the Company for its crude oil or natural gas sales after deducting transportation expenses. Amount is calculated by taking revenues less transportation expenses divided by sales volumes for a period, whether for crude oil or natural gas, as applicable.

“NYMEX” The New York Mercantile Exchange.

“play” A portion of the exploration and production cycle following the identification by geologists and geophysicists of areas with potential crude oil and natural gas reserves.

“proved reserves” The quantities of crude oil and natural gas, which, by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be economically producible from a given date forward, from known reservoirs and under

i

existing economic conditions, operating methods, and government regulations prior to the time at which contracts providing the right to operate expire, unless evidence indicates renewal is reasonably certain.

“reservoir” A porous and permeable underground formation containing a natural accumulation of producible crude oil and/or natural gas that is confined by impermeable rock or water barriers and is separate from other reservoirs.

“royalty interest” Refers to the ownership of a percentage of the resources or revenues produced from a crude oil or natural gas property. A royalty interest owner does not bear exploration, development, or operating expenses associated with drilling and producing a crude oil or natural gas property.

“SCOOP” Refers to the South Central Oklahoma Oil Province, a term used to describe properties located in the Anadarko basin of Oklahoma in which we operate. Our SCOOP acreage extends across portions of Garvin, Grady, Stephens, Carter, McClain and Love counties of Oklahoma and has the potential to contain hydrocarbons from a variety of conventional and unconventional reservoirs overlying and underlying the Woodford formation.

"STACK" Refers to Sooner Trend Anadarko Canadian Kingfisher, a term used to describe a resource play located in the Anadarko Basin of Oklahoma characterized by stacked geologic formations with major targets in the Meramec, Osage and Woodford formations. A significant portion of our STACK acreage is located in over-pressured portions of Blaine, Dewey and Custer counties of Oklahoma.

“undeveloped acreage” Lease acreage on which wells have not been drilled or completed to a point that would permit the production of commercial quantities of crude oil and/or natural gas.

“unit” The joining of all or substantially all interests in a reservoir or field, rather than a single tract, to provide for development and operation without regard to separate property interests. Also, the area covered by a unitization agreement.

“working interest” The right granted to the lessee of a property to explore for and to produce and own crude oil, natural gas, or other minerals. The working interest owners bear the exploration, development, and operating costs on either a cash, penalty, or carried basis.

ii

Cautionary Statement for the Purpose of the “Safe Harbor” Provisions of the Private Securities Litigation Reform Act of 1995

This report and information incorporated by reference in this report include “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical fact, including, but not limited to, forecasts or expectations regarding the Company's business and statements or information concerning the Company’s future operations, performance, financial condition, production and reserves, schedules, plans, timing of development, rates of return, budgets, costs, business strategy, objectives, and cash flows, included in this report are forward-looking statements. The words “could,” “may,” “believe,” “anticipate,” “intend,” “estimate,” “expect,” “project,” “budget,” “plan,” “continue,” “potential,” “guidance,” “strategy” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain such identifying words.

Forward-looking statements may include, but are not limited to, statements about:

• our strategy;

• our business and financial plans;

• our future operations;

• our crude oil and natural gas reserves and related development plans;

• technology;

• future crude oil, natural gas liquids, and natural gas prices and differentials;

• the timing and amount of future production of crude oil and natural gas and flaring activities;

• the amount, nature and timing of capital expenditures;

• estimated revenues, expenses and results of operations;

• drilling and completing of wells;

• competition;

• marketing of crude oil and natural gas;

• transportation of crude oil, natural gas liquids, and natural gas to markets;

• property exploitation, property acquisitions and dispositions, or joint development opportunities;

• costs of exploiting and developing our properties and conducting other operations;

• our financial position;

• general economic conditions;

• credit markets;

• our liquidity and access to capital;

• the impact of governmental policies, laws and regulations, as well as regulatory and legal proceedings involving us and of scheduled or potential regulatory or legal changes;

• our future operating and financial results;

• our future commodity or other hedging arrangements; and

• the ability and willingness of current or potential lenders, hedging contract counterparties, customers, and working interest owners to fulfill their obligations to us or to enter into transactions with us in the future on terms that are acceptable to us.

Forward-looking statements are based on the Company’s current expectations and assumptions about future events and currently available information as to the outcome and timing of future events. Although the Company believes these assumptions and expectations are reasonable, they are inherently subject to numerous business, economic, competitive, regulatory and other risks and uncertainties, most of which are difficult to predict and many of which are beyond the Company's control. No assurance can be given that such expectations will be correct or achieved or that the assumptions are accurate or will not change over time. The risks and uncertainties that may affect the operations, performance and results of the business and forward-looking statements include, but are not limited to, those risk factors and other cautionary statements described under Part II, Item 1A. Risk Factors and elsewhere in this report, if any, our Annual Report on Form 10-K for the year ended December 31, 2017, registration statements we file from time to time with the Securities and Exchange Commission, and other announcements we make from time to time.

Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date on which such statement is made. Should one or more of the risks or uncertainties described in this report or our Annual Report on Form 10-K occur, or should underlying assumptions prove incorrect, the Company's actual results and plans could differ materially from those expressed in any forward-looking statements. All forward-looking statements are expressly qualified in their entirety by this cautionary statement.

Except as expressly stated above or otherwise required by applicable law, the Company undertakes no obligation to publicly correct or update any forward-looking statement whether as a result of new information, future events or circumstances after the date of this report, or otherwise.

iii

PART I. Financial Information

ITEM 1. Financial Statements

Continental Resources, Inc. and Subsidiaries

Condensed Consolidated Balance Sheets

	June 30, 2018		December 31, 2017
In thousands, except par values and share data	(Unaudited)
Assets
Current assets:
Cash and cash equivalents	$	129,989	$	43,902
Receivables:
Crude oil and natural gas sales	671,004		671,665
Affiliated parties	58		63
Joint interest and other, net	506,301		426,585
Derivative assets	203		2,603
Inventories	115,310		97,406
Prepaid expenses and other	18,424		9,501
Total current assets	1,441,289		1,251,725
Net property and equipment, based on successful efforts method of accounting	13,339,571		12,933,789
Other noncurrent assets	17,620		14,137
Total assets	$	14,798,480	$	14,199,651
Liabilities and shareholders’ equity
Current liabilities:
Accounts payable trade	$	811,965	$	692,908
Revenues and royalties payable	380,651		374,831
Payables to affiliated parties	237		143
Accrued liabilities and other	280,199		260,074
Derivative liabilities	9,065		—
Current portion of long-term debt	2,322		2,286
Total current liabilities	1,484,439		1,330,242
Long-term debt, net of current portion	6,164,221		6,351,405
Other noncurrent liabilities:
Deferred income tax liabilities, net	1,406,326		1,259,558
Asset retirement obligations, net of current portion	117,924		111,794
Other noncurrent liabilities	12,082		15,449
Total other noncurrent liabilities	1,536,332		1,386,801
Commitments and contingencies (Note 8)
Shareholders’ equity:
Preferred stock, $0.01 par value; 25,000,000 shares authorized; no shares issued and outstanding	—		—
Common stock, $0.01 par value; 1,000,000,000 shares authorized; 376,030,797 shares issued and outstanding at June 30, 2018; 375,219,769 shares issued and outstanding at December 31, 2017	3,760		3,752
Additional paid-in capital	1,415,175		1,409,326
Accumulated other comprehensive income	325		307
Retained earnings	4,194,228		3,717,818
Total shareholders’ equity	5,613,488		5,131,203
Total liabilities and shareholders’ equity	$	14,798,480	$	14,199,651

The accompanying notes are an integral part of these condensed consolidated financial statements.

1

Continental Resources, Inc. and Subsidiaries

Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss)

	Three months ended June 30,						Six months ended June 30,
In thousands, except per share data	2018			2017			2018			2017
Revenues:
Crude oil and natural gas sales	$	1,137,528		$	626,548		$	2,251,380		$	1,260,398
Gain (loss) on natural gas derivatives, net	(12,685		)	28,022			(2,511		)	74,880
Crude oil and natural gas service operations	12,270			6,916			29,272			11,636
Total revenues	1,137,113			661,486			2,278,141			1,346,914
Operating costs and expenses:
Production expenses	90,171			82,474			183,133			155,328
Production taxes	83,595			41,965			164,175			83,198
Transportation expenses	47,254			—			96,551			—
Exploration expenses	303			3,204			2,023			8,202
Crude oil and natural gas service operations	7,688			4,478			12,271			7,315
Depreciation, depletion, amortization and accretion	447,200			395,770			901,578			777,926
Property impairments	29,162			123,316			62,946			174,689
General and administrative expenses	47,174			39,186			90,217			86,407
Net (gain) loss on sale of assets and other	(6,710		)	134			(6,751		)	5,669
Total operating costs and expenses	745,837			690,527			1,506,143			1,298,734
Income (loss) from operations	391,276			(29,041		)	771,998			48,180
Other income (expense):
Interest expense	(74,288		)	(72,744		)	(150,182		)	(143,916		)
Other	708			373			1,362			815
	(73,580		)	(72,371		)	(148,820		)	(143,101		)
Income (loss) before income taxes	317,696			(101,412		)	623,178			(94,921		)
(Provision) benefit for income taxes	(75,232		)	37,855			(146,768		)	31,833
Net income (loss)	$	242,464		$	(63,557	)	$	476,410		$	(63,088	)
Basic net income (loss) per share	$	0.65		$	(0.17	)	$	1.28		$	(0.17	)
Diluted net income (loss) per share	$	0.65		$	(0.17	)	$	1.27		$	(0.17	)
Comprehensive income (loss):
Net income (loss)	$	242,464		$	(63,557	)	$	476,410		$	(63,088	)
Other comprehensive income, net of tax:
Foreign currency translation adjustments	16			189			18			327
Total other comprehensive income, net of tax	16			189			18			327
Comprehensive income (loss)	$	242,480		$	(63,368	)	$	476,428		$	(62,761	)

The accompanying notes are an integral part of these condensed consolidated financial statements.

2

Continental Resources, Inc. and Subsidiaries

Condensed Consolidated Statement of Shareholders’ Equity

In thousands, except share data	Shares outstanding		Common stock			Additional paid-in capital			Accumulated other comprehensive income		Retained earnings		Total shareholders’ equity
Balance at December 31, 2017	375,219,769		$	3,752		$	1,409,326		$	307	$	3,717,818	$	5,131,203
Net income (unaudited)	—		—			—			—		476,410		476,410
Other comprehensive income, net of tax (unaudited)	—		—			—			18		—		18
Stock-based compensation (unaudited)	—		—			21,465			—		—		21,465
Restricted stock:
Granted (unaudited)	1,277,491		13			—			—		—		13
Repurchased and canceled (unaudited)	(287,506	)	(3		)	(15,616		)	—		—		(15,619		)
Forfeited (unaudited)	(178,957	)	(2		)	—			—		—		(2		)
Balance at June 30, 2018 (unaudited)	376,030,797		$	3,760		$	1,415,175		$	325	$	4,194,228	$	5,613,488

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

Continental Resources, Inc. and Subsidiaries

Unaudited Condensed Consolidated Statements of Cash Flows

	Six months ended June 30,
In thousands	2018			2017
Cash flows from operating activities
Net income (loss)	$	476,410		$	(63,088	)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion, amortization and accretion	902,217			774,810
Property impairments	62,946			174,689
Non-cash (gain) loss on derivatives, net	11,465			(68,420		)
Stock-based compensation	21,478			20,571
Provision (benefit) for deferred income taxes	146,768			(31,834		)
Dry hole costs	1			157
(Gain) loss on sale of assets, net	(6,751		)	2,859
Other, net	7,159			5,089
Changes in assets and liabilities:
Accounts receivable	(79,043		)	(19,347		)
Inventories	(17,904		)	14,984
Other current assets	(8,138		)	(2,225		)
Accounts payable trade	103,710			105,441
Revenues and royalties payable	5,857			21,105
Accrued liabilities and other	17,550			(17,968		)
Other noncurrent assets and liabilities	(3,732		)	(251		)
Net cash provided by operating activities	1,639,993			916,572
Cash flows from investing activities
Exploration and development	(1,334,681		)	(877,115		)
Purchase of producing crude oil and natural gas properties	(24,097		)	(812		)
Purchase of other property and equipment	(12,205		)	(9,372		)
Proceeds from sale of assets	27,380			7,979
Net cash used in investing activities	(1,343,603		)	(879,320		)
Cash flows from financing activities
Credit facility borrowings	803,000			540,000
Repayment of credit facility	(991,000		)	(565,000		)
Repayment of other debt	(1,134		)	(1,099		)
Debt issuance costs	(5,524		)	—
Repurchase of restricted stock for tax withholdings	(15,619		)	(10,620		)
Net cash used in financing activities	(210,277		)	(36,719		)
Effect of exchange rate changes on cash	(26		)	14
Net change in cash and cash equivalents	86,087			547
Cash and cash equivalents at beginning of period	43,902			16,643
Cash and cash equivalents at end of period	$	129,989		$	17,190

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

Note 1. Organization and Nature of Business

Continental Resources, Inc. (the “Company”) was originally formed in 1967 and is incorporated under the laws of the State of Oklahoma. The Company's principal business is crude oil and natural gas exploration, development and production with properties primarily located in the North, South, and East regions of the United States. The North region consists of properties north of Kansas and west of the Mississippi River and includes North Dakota Bakken, Montana Bakken and the Red River units. The South region includes all properties south of Nebraska and west of the Mississippi River including various plays in the SCOOP and STACK areas of Oklahoma. The East region is primarily comprised of undeveloped leasehold acreage east of the Mississippi River with no significant drilling or production operations.

A substantial portion of the Company’s operations are located in the North region, with that region comprising 59% of the Company’s crude oil and natural gas production and 74% of its crude oil and natural gas revenues for the six months ended June 30, 2018. The Company's principal producing properties in the North region are located in the Bakken field of North Dakota and Montana. In recent years, the Company has significantly expanded its operations in the South region with its increased activity in the SCOOP and STACK plays. The South region comprised 41% of the Company's crude oil and natural gas production and 26% of its crude oil and natural gas revenues for the six months ended June 30, 2018.

For the six months ended June 30, 2018, crude oil accounted for 56% of the Company’s total production and 82% of its crude oil and natural gas revenues.    

Note 2. Basis of Presentation and Significant Accounting Policies

Basis of presentation

The condensed consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are 100% owned, after all significant intercompany accounts and transactions have been eliminated upon consolidation.

This report has been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) applicable to interim financial information. Because this is an interim period filing presented using a condensed format, it does not include all disclosures required by accounting principles generally accepted in the United States (“U.S. GAAP”), although the Company believes the disclosures are adequate to make the information not misleading. You should read this Quarterly Report on Form 10-Q (“Form 10-Q”) together with the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 (“2017 Form 10-K”), which includes a summary of the Company’s significant accounting policies and other disclosures.

The condensed consolidated financial statements as of June 30, 2018 and for the three and six month periods ended June 30, 2018 and 2017 are unaudited. The condensed consolidated balance sheet as of December 31, 2017 was derived from the audited balance sheet included in the 2017 Form 10-K. The Company has evaluated events or transactions through the date this report on Form 10-Q was filed with the SEC in conjunction with its preparation of these condensed consolidated financial statements.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure and estimation of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results may differ from those estimates. The most significant estimates and assumptions impacting reported results are estimates of the Company’s crude oil and natural gas reserves, which are used to compute depreciation, depletion, amortization and impairment of proved crude oil and natural gas properties. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) necessary for a fair presentation in accordance with U.S. GAAP have been included in these unaudited interim condensed consolidated financial statements. The results of operations for any interim period are not necessarily indicative of the results of operations that may be expected for any other interim period or for an entire year.

Earnings per share

Basic net income (loss) per share is computed by dividing net income (loss) by the weighted-average number of shares outstanding for the period. In periods where the Company has net income, diluted earnings per share reflects the potential dilution of non-vested restricted stock awards, which are calculated using the treasury stock method. The following table presents the calculation of basic and diluted weighted average shares outstanding and net income (loss) per share for the three

5

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

and six months ended June 30, 2018 and 2017.

	Three months ended June 30,					Six months ended June 30,
In thousands, except per share data	2018		2017			2018		2017
Net income (loss) (numerator)	$	242,464	$	(63,557	)	$	476,410	$	(63,088	)
Weighted average shares (denominator):
Weighted average shares - basic	371,921		371,111			371,733		370,972
Non-vested restricted stock (1)	2,584		—			2,850		—
Weighted average shares - diluted	374,505		371,111			374,583		370,972
Net income (loss) per share:
Basic	$	0.65	$	(0.17	)	$	1.28	$	(0.17	)
Diluted	$	0.65	$	(0.17	)	$	1.27	$	(0.17	)

(1) For the three and six months ended June 30, 2017, the Company had a net loss and therefore the potential dilutive effect of approximately 1,933,200 and 2,546,200 weighted average non-vested restricted shares, respectively, were not included in the calculation of diluted net loss per share because to do so would have been anti-dilutive to the computations for those periods.

Inventories

Inventory is comprised of crude oil held in storage or as line fill in pipelines, pipeline imbalances, and tubular goods and equipment to be used in the Company's exploration and development activities. Crude oil inventories are valued at the lower of cost or market primarily using the first-in, first-out inventory method. Tubular goods and equipment are valued primarily using a weighted average cost method applied to specific classes of inventory items.

The components of inventory as of June 30, 2018 and December 31, 2017 consisted of the following:

In thousands	June 30, 2018		December 31, 2017
Tubular goods and equipment	$	18,722	$	14,946
Crude oil	96,588		82,460
Total	$	115,310	$	97,406

Adoption of new accounting pronouncements

Revenue recognition and presentation – In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes nearly all previously existing revenue recognition guidance under U.S. GAAP. Subsequently, the FASB issued additional guidance to assist entities with implementation efforts, including the issuance of ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net). This new guidance became effective for reporting periods beginning after December 15, 2017. The Company adopted the new revenue recognition and presentation guidance on January 1, 2018 as required. See Note 4. Revenues for discussion of the adoption impact and the applicable disclosures required by the new guidance.

New accounting pronouncements not yet adopted

Leases – In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires companies to recognize a right of use asset and related liability on the balance sheet for the rights and obligations arising from leases with durations greater than 12 months. The standard is effective for interim and annual reporting periods beginning after December 15, 2018. The Company plans to adopt the new standard using the simplified transition method prescribed by ASU 2018-11, Leases (Topic 842): Targeted Improvements, whereby the Company will initially apply the new standard as of the January 1, 2019 adoption date and will recognize a cumulative-effect adjustment to the opening balance of retained earnings, if any, upon adoption in lieu of retrospectively applying the new standard to pre-adoption periods.

The Company continues to evaluate the impact of ASU 2016-02 on its financial statements, accounting policies and internal controls and is in the process of implementing systems and processes to capture, classify, and account for leases within the scope of the new guidance and to comply with the related disclosure requirements. Interpretations and application of the new guidance continue to evolve and are being monitored for applicability and impact on the Company.

6

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

Based on an initial review of the new guidance and the Company’s current commitments, the Company anticipates it will be required to recognize lease assets and liabilities related to drilling rig commitments, certain equipment rentals and leases, certain surface use agreements, and potentially other arrangements. The Company does not believe any of its firm transportation agreements will qualify as leases, but continues to evaluate such arrangements.

Based on commitments in place as of June 30, 2018, the Company currently estimates its lease assets and liabilities to be recognized under ASU 2016-02 will total approximately $100 million, the majority of which will be comprised of future cash flows associated with drilling rig commitments, which are further discussed in Note 8. Commitments and Contingencies–Drilling commitments. This estimate may be subsequently revised based on unforeseen changes in the nature, timing, and extent of the Company's contractual arrangements from period to period, finalization of the Company's evaluation of its firm transportation agreements, or due to changes in the Company's interpretation or application of the new guidance.

Credit losses – In June 2016, the FASB issued ASU 2016-13, Financial Instruments–Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This standard changes how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. The standard will replace the currently required incurred loss approach with an expected loss model for instruments measured at amortized cost. The standard is effective for interim and annual periods beginning after December 15, 2019 and shall be applied using a modified retrospective approach resulting in a cumulative effect adjustment to retained earnings upon adoption. The Company continues to evaluate the new standard and is unable to estimate its financial statement impact at this time; however, the impact is not expected to be material. Historically, the Company's credit losses on crude oil and natural gas sales receivables and joint interest receivables have been immaterial.

Note 3. Supplemental Cash Flow Information

The following table discloses supplemental cash flow information about cash paid for interest and income tax payments and refunds. Also disclosed is information about investing activities that affects recognized assets and liabilities but does not result in cash receipts or payments.

	Six months ended June 30,
In thousands	2018		2017
Supplemental cash flow information:
Cash paid for interest	$	122,940	$	138,346
Cash paid for income taxes	—		2
Cash received for income tax refunds	5		148
Non-cash investing activities:
Asset retirement obligation additions and revisions, net	3,562		3,771

As of June 30, 2018 and December 31, 2017, the Company had $317.5 million and $302.8 million, respectively, of accrued capital expenditures included in “Net property and equipment” and “Accounts payable trade” in the condensed consolidated balance sheets.

Note 4. Revenues

Adoption of new revenue recognition and disclosure guidance

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which generally requires an entity to identify performance obligations in its contracts, estimate the amount of consideration to be received, allocate the consideration to each separate performance obligation, and recognize revenue as obligations are satisfied. Additionally, the standard requires expanded disclosures related to revenue recognition.

Subsequent to the issuance of ASU 2014-09, the FASB issued additional guidance to assist entities with implementation efforts, including the issuance of ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), pertaining to the presentation of revenues on a gross basis (revenues presented separately from associated expenses) versus a net basis. This guidance requires an entity to record revenue on a gross basis if it controls a promised good or service before transferring it to a customer, whereas an entity records revenue on a net basis if its role is to arrange for another entity to provide the goods or services to a customer. Applying the guidance in ASU 2016-08 requires significant judgment in determining the point in time when control of products transfers to customers.

7

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

The Company adopted the new revenue recognition and presentation guidance on January 1, 2018 using a modified retrospective transition approach to all applicable contracts at the date of initial application, whereby the standard has been applied for periods commencing after December 31, 2017 and prior period results have not been adjusted to conform to current presentation. Adoption of the new guidance had no cumulative effect impact on the Company's retained earnings at January 1, 2018.

The new guidance does not have a material impact on the timing of the Company’s revenue recognition or its financial position, results of operations, net income, or cash flows, but does impact the Company's presentation of revenues and expenses under the gross-versus-net presentation guidance in ASU 2016-08. In years prior to 2018, the Company generally presented its revenues net of costs incurred to transport its production to market. Under the new guidance, revenues and transportation expenses associated with production originating from the Company’s operated properties are now reported on a gross basis as further discussed below. The changes from net to gross presentation resulted in an increase in revenues and a corresponding increase in separately reported transportation expenses, with no net effect on the Company’s results of operations, net income, or cash flows for the three and six months ended June 30, 2018.

The following table reflects the change in presentation of revenues and applicable expenses on the Company's 2018 results under the new and previous guidance.

	Three months ended June 30, 2018								Six months ended June 30, 2018
In thousands	New Standard			Prior Presentation			Change		New Standard			Prior Presentation			Change
Revenues:
Crude oil and natural gas sales	$	1,137,528		$	1,090,274		$	47,254	$	2,251,380		$	2,154,829		$	96,551
Loss on natural gas derivatives, net	(12,685		)	(12,685		)	—		(2,511		)	(2,511		)	—
Crude oil and natural gas service operations	12,270			12,270			—		29,272			29,272			—
Total revenues	$	1,137,113		$	1,089,859		$	47,254	$	2,278,141		$	2,181,590		$	96,551
Operating costs and expenses:
Transportation expenses	$	47,254		$	—		$	47,254	$	96,551		$	—		$	96,551
Net income	$	242,464		$	242,464		$	—	$	476,410		$	476,410		$	—

Revenue from contracts with customers

Below is a discussion of the nature, timing, and presentation of revenues arising from the Company's major revenue-generating arrangements.

Operated crude oil revenues – The Company pays third parties to transport the majority of its operated crude oil production from lease locations to downstream market centers, at which time the Company's customers take title and custody of the product in exchange for prices based on the particular market where the product was delivered. Operated crude oil revenues are recognized during the month in which control transfers to the customer and it is probable the Company will collect the consideration it is entitled to receive. Crude oil sales proceeds from operated properties are generally received by the Company within one month after the month in which a sale has occurred. Operated crude oil revenues and transportation expenses are reported on a gross basis, as the Company controls the operated production prior to its transfer to customers. Transportation expenses associated with the Company's operated crude oil production totaled $40.2 million and $80.6 million for the three and six months ended June 30, 2018, respectively.

Operated natural gas revenues – The Company sells the majority of its operated natural gas production to midstream customers at its lease locations under multi-year term contracts based on market prices in the field where the sales occur. Under these arrangements, the midstream customers obtain control of the unprocessed gas stream at the lease location and the Company's revenues from each sale are determined using contractually agreed pricing formulas which contain multiple components, including the volume and Btu content of the natural gas sold, the midstream customer's proceeds from the sale of residue gas and natural gas liquids ("NGLs") at secondary downstream markets, and contractual pricing adjustments reflecting the midstream customer's estimated recoupment of its investment over time. Such revenues are recognized net of pricing adjustments applied by the midstream customer during the month in which control transfers to the customer at the delivery point and it is probable the Company will collect the consideration it is entitled to receive. Natural gas sales proceeds from operated properties are generally received by the Company within one month after the month in which a sale has occurred.

Under certain arrangements, the Company may elect to take a volume of processed residue gas and/or NGLs in-kind at the tailgate of the midstream customer's processing plant in lieu of a monetary settlement based on the customer's proceeds for sale of those processed products. When the Company elects to do so, it pays third parties to transport the processed products

8

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

which it took in-kind to downstream delivery points, where it then sells the products to customers at prices applicable to those downstream markets. In such situations, operated revenues are recognized during the month in which control transfers to the customer at the delivery point and it is probable the Company will collect the consideration it is entitled to receive. Operated sales proceeds are generally received by the Company within one month after the month in which a sale has occurred. In these scenarios, the Company's revenues include the pricing adjustments applied by the midstream processing entity according to the applicable contractual pricing formula, but exclude the transportation expenses the Company incurs to transport the processed products to downstream customers. Transportation expenses associated with these arrangements totaled $7.0 million and $15.9 million for the three and six months ended June 30, 2018, respectively, comprised entirely of costs to transport processed residue gas.

Non-operated crude oil and natural gas revenues – The Company's proportionate share of production from non-operated properties is marketed at the discretion of the operators. For non-operated properties, the Company receives a net payment from the operator representing its proportionate share of sales proceeds which is net of costs incurred by the operator, if any. Such non-operated revenues are recognized at the net amount of proceeds to be received by the Company during the month in which production occurs and it is probable the Company will collect the consideration it is entitled to receive. Proceeds are generally received by the Company within two to three months after the month in which production occurs.

Natural gas derivative revenues – See Note 5. Derivative Instruments for discussion of the Company's accounting for its derivative instruments.

Revenues from service operations – Revenues from the Company's crude oil and natural gas service operations consist primarily of revenues associated with water gathering, recycling, and disposal activities and the treatment and sale of crude oil reclaimed from waste products. Revenues associated with such activities, which are derived using market-based rates or rates commensurate with industry guidelines, are recognized during the month in which services are performed, the Company has an unconditional right to receive payment, and collectability is probable. Payment is generally received by the Company within one month after the month in which services are provided.

Disaggregation of crude oil and natural gas revenues

The following table presents the disaggregation of the Company's crude oil and natural gas revenues for the three and six months ended June 30, 2018.

	Three months ended June 30, 2018						Six months ended June 30, 2018
In thousands	North Region		South Region		Total		North Region		South Region		Total
Crude oil revenues:
Operated properties	$	587,582	$	145,603	$	733,185	$	1,156,794	$	284,056	$	1,440,850
Non-operated properties	196,301		17,398		213,699		379,188		33,127		412,315
Total crude oil revenues	783,883		163,001		946,884		1,535,982		317,183		1,853,165
Natural gas revenues:
Operated properties	41,425		121,188		162,613		93,245		248,442		341,687
Non-operated properties	13,982		14,049		28,031		27,661		28,867		56,528
Total natural gas revenues	55,407		135,237		190,644		120,906		277,309		398,215
Crude oil and natural gas sales	$	839,290	$	298,238	$	1,137,528	$	1,656,888	$	594,492	$	2,251,380
Timing of revenue recognition
Goods transferred at a point in time	$	839,290	$	298,238	$	1,137,528	$	1,656,888	$	594,492	$	2,251,380
Goods transferred over time	—		—		—		—		—		—
	$	839,290	$	298,238	$	1,137,528	$	1,656,888	$	594,492	$	2,251,380

Performance obligations

The Company satisfies the performance obligations under its crude oil and natural gas sales contracts upon delivery of its production and related transfer of control to customers. Upon delivery of production, the Company has a right to receive consideration from its customers in amounts that correspond with the value of the production transferred.

All of the Company's outstanding crude oil sales contracts at June 30, 2018 are short-term in nature with contract terms of less than one year. For such contracts, the Company has utilized the practical expedient in Accounting Standards

9

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

Codification ("ASC") 606-10-50-14 exempting the Company from disclosure of the transaction price allocated to remaining performance obligations, if any, if the performance obligation is part of a contract that has an original expected duration of one year or less.

The majority of the Company's operated natural gas production is sold at lease locations to midstream customers under multi-year term contracts. For such contracts having a term greater than one year, the Company has utilized the practical expedient in ASC 606-10-50-14A which indicates an entity is not required to disclose the transaction price allocated to remaining performance obligations, if any, if variable consideration is allocated entirely to a wholly unsatisfied performance obligation. Under our sales contracts, whether for crude oil or natural gas, each unit of production delivered to a customer represents a separate performance obligation; therefore, future volumes to be delivered are wholly unsatisfied at period-end and disclosure of the transaction price allocated to remaining performance obligations is not applicable.

Contract balances

Under the Company’s crude oil and natural gas sales contracts or activities that give rise to service revenues, the Company recognizes revenue after its performance obligations have been satisfied, at which point the Company has an unconditional right to receive payment. Accordingly, the Company’s commodity sales contracts and service activities generally do not give rise to contract assets or contract liabilities under ASC Topic 606. Instead, the Company's unconditional rights to receive consideration are presented as a receivable within "Receivables–Crude oil and natural gas sales" or "Receivables–Joint interest and other, net", as applicable, in its condensed consolidated balance sheets.

Revenues from previously satisfied performance obligations

To record revenues for commodity sales, at the end of each month the Company estimates the amount of production delivered and sold to customers and the prices to be received for such sales. Differences between estimated revenues and actual amounts received for all prior months are recorded in the month payment is received from the customer and are reflected in the financial statements within the caption "Crude oil and natural gas sales". Revenues recognized during the three and six months ended June 30, 2018 related to performance obligations satisfied in prior reporting periods were not material.

Note 5. Derivative Instruments

Natural gas derivatives

From time to time the Company has entered into natural gas swap and collar derivative contracts to economically hedge against the variability in cash flows associated with future sales of natural gas production. While the use of these derivative instruments limits the downside risk of adverse price movements, their use also limits future revenues from upward price movements.

The Company recognizes its natural gas derivative instruments on the balance sheet as either assets or liabilities measured at fair value. The Company has not designated its natural gas derivatives as hedges for accounting purposes and, as a result, marks such derivative instruments to fair value and recognizes the changes in fair value in the unaudited condensed consolidated statements of comprehensive income (loss) under the caption “Gain (loss) on natural gas derivatives, net”.

The Company's natural gas derivative contracts are settled based upon reported NYMEX Henry Hub settlement prices. The estimated fair value of derivatives is based upon various factors, including commodity exchange prices, over-the-counter quotations and, in the case of collars, volatility, the risk-free interest rate, and the time to expiration. The calculation of the fair value of collars requires the use of an option-pricing model. See Note 6. Fair Value Measurements.

    With respect to a natural gas fixed price swap contract, the counterparty is required to make a payment to the Company if the settlement price for any settlement period is less than the swap price, and the Company is required to make a payment to the counterparty if the settlement price for any settlement period is greater than the swap price. For a natural gas collar contract, the counterparty is required to make a payment to the Company if the settlement price for any settlement period is below the floor price, and the Company is required to make a payment to the counterparty if the settlement price for any settlement period is above the ceiling price. Neither party is required to make a payment to the other party if the settlement price for any settlement period is between the floor price and the ceiling price.

10

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

At June 30, 2018 the Company had outstanding natural gas derivative contracts as set forth in the table below. The volumes reflected below represent an aggregation of multiple derivative contracts having similar remaining durations expected to be realized ratably over the remainder of 2018. At June 30, 2018 the Company had no outstanding crude oil derivative contracts.

		Swaps Weighted Average Price
Period and Type of Contract	MMBtus
July 2018 - December 2018
Swaps - Henry Hub	115,920,000	$	2.88

Natural gas derivative gains and losses

Cash receipts and payments in the following table reflect the gain or loss on derivative contracts which matured during the period, calculated as the difference between the contract price and the market settlement price of matured contracts. Non-cash gains and losses below represent the change in fair value of derivative instruments which continue to be held at period end and the reversal of previously recognized non-cash gains or losses on derivative contracts that matured during the period.

	Three months ended June 30,						Six months ended June 30,
In thousands	2018			2017			2018			2017
Cash received (paid) on derivatives:
Natural gas fixed price swaps	$	4,758		$	6,709		$	8,954		$	12,187
Natural gas collars	—			(3,050		)	—			(9,456		)
Cash received (paid) on derivatives, net	4,758			3,659			8,954			2,731
Non-cash gain (loss) on derivatives:
Natural gas fixed price swaps	(17,443		)	12,520			(11,465		)	35,416
Natural gas collars	—			11,843			—			36,733
Non-cash gain (loss) on derivatives, net	(17,443		)	24,363			(11,465		)	72,149
Gain (loss) on natural gas derivatives, net	$	(12,685	)	$	28,022		$	(2,511	)	$	74,880

Diesel fuel derivatives

The Company previously entered into diesel fuel swap derivative contracts, all of which matured on or before December 31, 2017, to economically hedge against the variability in cash flows associated with purchases of diesel fuel for use in drilling activities. With respect to the diesel fuel swap contracts, the counterparty was required to make a payment to the Company if the settlement price for any settlement period was greater than the swap price, and the Company was required to make a payment to the counterparty if the settlement price for any settlement period was less than the swap price. The diesel fuel swap contracts were settled based upon reported NYMEX settlement prices for New York Harbor ultra-low sulfur diesel fuel.

The Company recognized its diesel fuel derivatives on the balance sheet as either assets or liabilities measured at fair value. The estimated fair value was based upon various factors, including commodity exchange prices, over-the-counter quotations, the risk-free interest rate, and time to expiration. The Company did not designate its diesel fuel derivatives as hedges for accounting purposes and, as a result, marked the derivative instruments to fair value and recognized the changes in fair value in the unaudited condensed consolidated statements of comprehensive income (loss) under the caption “Operating costs and expenses—Net (gain) loss on sale of assets and other.”

Cash receipts in the following table reflect gains on diesel fuel derivatives which matured during the 2017 period, calculated as the difference between the contract price and the market settlement price of matured contracts. Non-cash losses below represent the change in fair value of diesel fuel derivatives held at June 30, 2017 and the reversal of previously recognized non-cash gains or losses on derivative contracts that matured during the three and six months ended June 30, 2017.

	Three months ended June 30,					Six months ended June 30,
In thousands	2018		2017			2018		2017
Cash received on diesel fuel derivatives	$	—	$	185		$	—	$	919
Non-cash loss on diesel fuel derivatives	—		(1,098		)	—		(3,729		)
Loss on diesel fuel derivatives, net	$	—	$	(913	)	$	—	$	(2,810	)

11

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

Balance sheet offsetting of derivative assets and liabilities

The Company’s derivative contracts are recorded at fair value in the condensed consolidated balance sheets under the captions “Derivative assets”, “Noncurrent derivative assets”, “Derivative liabilities”, and “Noncurrent derivative liabilities”, as applicable. Derivative assets and liabilities with the same counterparty that are subject to contractual terms which provide for net settlement are reported on a net basis in the condensed consolidated balance sheets.

The following table presents the gross amounts of recognized natural gas and diesel fuel derivative assets and liabilities, as applicable, the amounts offset under netting arrangements with counterparties, and the resulting net amounts presented in the condensed consolidated balance sheets for the periods presented, all at fair value.

In thousands	June 30, 2018			December 31, 2017
Commodity derivative assets:
Gross amounts of recognized assets	$	885		$	2,603
Gross amounts offset on balance sheet	(682		)	—
Net amounts of assets on balance sheet	203			2,603
Commodity derivative liabilities:
Gross amounts of recognized liabilities	(9,747		)	—
Gross amounts offset on balance sheet	682			—
Net amounts of liabilities on balance sheet	$	(9,065	)	$	—

The following table reconciles the net amounts disclosed above to the individual financial statement line items in the condensed consolidated balance sheets.

In thousands	June 30, 2018			December 31, 2017
Derivative assets	$	203		$	2,603
Noncurrent derivative assets	—			—
Net amounts of assets on balance sheet	203			2,603
Derivative liabilities	(9,065		)	—
Noncurrent derivative liabilities	—			—
Net amounts of liabilities on balance sheet	(9,065		)	—
Total derivative assets (liabilities), net	$	(8,862	)	$	2,603

Note 6. Fair Value Measurements

The Company follows a three-level valuation hierarchy for disclosure of fair value measurements. The valuation hierarchy categorizes assets and liabilities measured at fair value into one of three different levels depending on the observability of the inputs employed in the measurement. The three levels are defined as follows:

• Level 1: Observable inputs that reflect unadjusted quoted prices for identical assets or liabilities in active markets as of the reporting date.

• Level 2: Observable market-based inputs or unobservable inputs corroborated by market data. These are inputs other than quoted prices in active markets included in Level 1, which are either directly or indirectly observable as of the reporting date.

• Level 3: Unobservable inputs not corroborated by market data and may be used with internally developed methodologies that result in management’s best estimate of fair value.

A financial instrument’s categorization within the hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Level 1 inputs are given the highest priority in the fair value hierarchy while Level 3 inputs are given the lowest priority. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the placement of assets and liabilities within the levels of the hierarchy. As Level 1 inputs generally provide the most reliable evidence of fair value, the Company uses Level 1 inputs when available. The Company’s

12

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

policy is to recognize transfers between the hierarchy levels as of the beginning of the reporting period in which the event or change in circumstances caused the transfer.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The Company's derivative instruments are reported at fair value on a recurring basis. In determining the fair values of swap contracts, a discounted cash flow method is used due to the unavailability of relevant comparable market data for the Company’s exact contracts. The discounted cash flow method estimates future cash flows based on quoted market prices for forward commodity prices and a risk-adjusted discount rate. The fair values of swap contracts are calculated mainly using significant observable inputs (Level 2). Calculation of the fair values of collars requires the use of an industry-standard option pricing model that considers various inputs including quoted forward prices for commodities, time value, volatility factors, and current market and contractual prices for the underlying instruments, as well as other relevant economic measures. These assumptions are observable in the marketplace or can be corroborated by active markets or broker quotes and are therefore designated as Level 2 within the valuation hierarchy. The Company’s calculation of fair value for each of its derivative positions is compared to the counterparty valuation for reasonableness.

The following tables summarize the valuation of financial instruments by pricing levels that were accounted for at fair value on a recurring basis as of June 30, 2018 and December 31, 2017.

	Fair value measurements at June 30, 2018 using:
In thousands	Level 1		Level 2			Level 3		Total
Derivative liabilities:
Swaps	$	—	$	(8,862	)	$	—	$	(8,862	)
Total	$	—	$	(8,862	)	$	—	$	(8,862	)
	Fair value measurements at December 31, 2017 using:
In thousands	Level 1		Level 2			Level 3		Total
Derivative assets:
Swaps	$	—	$	2,603		$	—	$	2,603
Total	$	—	$	2,603		$	—	$	2,603

Assets Measured at Fair Value on a Nonrecurring Basis

Certain assets are reported at fair value on a nonrecurring basis in the condensed consolidated financial statements. The following methods and assumptions were used to estimate the fair values for those assets.

Asset Impairments – Proved crude oil and natural gas properties are reviewed for impairment on a field-by-field basis each quarter. The estimated future cash flows expected in connection with the field are compared to the carrying amount of the field to determine if the carrying amount is recoverable. If the carrying amount of the field exceeds its estimated undiscounted future cash flows, the carrying amount of the field is reduced to its estimated fair value. Risk-adjusted probable and possible reserves may be taken into consideration when determining estimated future net cash flows and fair value when such reserves exist and are economically recoverable. Due to the unavailability of relevant comparable market data, a discounted cash flow method is used to determine the fair value of proved properties. The discounted cash flow method estimates future cash flows based on the Company's estimates of future crude oil and natural gas production, commodity prices based on commodity futures price strips adjusted for differentials, operating costs, and a risk-adjusted discount rate. The fair value of proved crude oil and natural gas properties is calculated using significant unobservable inputs (Level 3). The following table sets forth quantitative information about the significant unobservable inputs used by the Company to calculate the fair value of proved crude oil and natural gas properties using a discounted cash flow method.

Unobservable Input	Assumption
Future production	Future production estimates for each property
Forward commodity prices	Forward NYMEX strip prices through 2022 (adjusted for differentials), escalating 3% per year thereafter
Operating costs	Estimated costs for the current year, escalating 3% per year thereafter
Productive life of field	Ranging from 1 to 38 years
Discount rate	10%

13

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

Unobservable inputs to the fair value assessment are reviewed quarterly and are revised as warranted based on a number of factors, including reservoir performance, new drilling, crude oil and natural gas prices, changes in costs, technological advances, new geological or geophysical data, or other economic factors. Fair value measurements of proved properties are reviewed and approved by certain members of the Company’s management.

For the three and six months ended June 30, 2018, estimated future net cash flows were determined to be in excess of cost basis, therefore no impairment was recorded for the Company’s proved crude oil and natural gas properties for those periods.

For the three and six months ended June 30, 2017, the Company determined the carrying amounts of certain proved properties were not recoverable from future cash flows, and therefore, were impaired. Impairments of proved properties totaled $81.5 million and $82.3 million for the three and six months ended June 30, 2017, respectively. The 2017 impairments reflected fair value adjustments primarily concentrated in the Arkoma Woodford field ($81.2 million, all in the second quarter of 2017) and various non-core areas in the North and South regions ($1.1 million, including $0.3 million in the second quarter of 2017). The impaired properties were written down to their estimated fair value at the time of impairment of approximately $72 million.

Certain unproved crude oil and natural gas properties were impaired during the three and six months ended June 30, 2018 and 2017, reflecting recurring amortization of undeveloped leasehold costs on properties the Company expects will not be transferred to proved properties over the lives of the leases based on drilling plans, experience of successful drilling, and the average holding period.

The following table sets forth the non-cash impairments of both proved and unproved properties for the indicated periods. Proved and unproved property impairments are recorded under the caption “Property impairments” in the unaudited condensed consolidated statements of comprehensive income (loss).

	Three months ended June 30,				Six months ended June 30,
In thousands	2018		2017		2018		2017
Proved property impairments	$	—	$	81,469	$	—	$	82,340
Unproved property impairments	29,162		41,847		62,946		92,349
Total	$	29,162	$	123,316	$	62,946	$	174,689

Financial Instruments Not Recorded at Fair Value

The following table sets forth the estimated fair values of financial instruments that are not recorded at fair value in the condensed consolidated financial statements.

	June 30, 2018				December 31, 2017
In thousands	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Debt:
Revolving credit facility	$	—	$	—	$	188,000	$	188,000
Note payable	8,845		8,800		9,974		9,900
5% Senior Notes due 2022 (1)	1,997,782		2,030,100		1,997,576		2,040,000
4.5% Senior Notes due 2023	1,487,803		1,522,900		1,486,690		1,526,800
3.8% Senior Notes due 2024	992,588		976,000		992,036		988,800
4.375% Senior Notes due 2028	988,090		994,100		988,061		987,200
4.9% Senior Notes due 2044	691,435		683,600		691,354		679,900
Total debt	$	6,166,543	$	6,215,500	$	6,353,691	$	6,420,600

(1) As discussed in Note 12. Subsequent Events, on July 12, 2018 the Company announced it will redeem $400 million, or 20%, of its outstanding $2.0 billion of 5% Senior Notes due 2022 on August 16, 2018.

The fair value of revolving credit facility borrowings at December 31, 2017 approximate carrying value based on borrowing rates available to the Company for bank loans with similar terms and maturities and are classified as Level 2 in the fair value hierarchy.

The fair value of the note payable is determined using a discounted cash flow approach based on the interest rate and payment terms of the note payable and an assumed discount rate. The fair value of the note payable is significantly influenced

14

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

by the discount rate assumption, which is derived by the Company and is unobservable. Accordingly, the fair value of the note payable is classified as Level 3 in the fair value hierarchy.

The fair values of the 5% Senior Notes due 2022 (“2022 Notes”), the 4.5% Senior Notes due 2023 (“2023 Notes”), the 3.8% Senior Notes due 2024 (“2024 Notes”), the 4.375% Senior Notes due 2028 (“2028 Notes”), and the 4.9% Senior Notes due 2044 (“2044 Notes”) are based on quoted market prices and, accordingly, are classified as Level 1 in the fair value hierarchy.

The carrying values of all classes of cash and cash equivalents, trade receivables, and trade payables are considered to be representative of their respective fair values due to the short term maturities of those instruments.

Note 7. Long-Term Debt

Long-term debt, net of unamortized discounts, premiums, and debt issuance costs totaling $42.3 million and $44.3 million at June 30, 2018 and December 31, 2017, respectively, consists of the following.

In thousands	June 30, 2018		December 31, 2017
Revolving credit facility	$	—	$	188,000
Note payable	8,845		9,974
5% Senior Notes due 2022 (1)	1,997,782		1,997,576
4.5% Senior Notes due 2023	1,487,803		1,486,690
3.8% Senior Notes due 2024	992,588		992,036
4.375% Senior Notes due 2028	988,090		988,061
4.9% Senior Notes due 2044	691,435		691,354
Total debt	$	6,166,543	$	6,353,691
Less: Current portion of long-term debt	2,322		2,286
Long-term debt, net of current portion	$	6,164,221	$	6,351,405

(1) As discussed in Note 12. Subsequent Events, on July 12, 2018 the Company announced it will redeem $400 million, or 20%, of its outstanding $2.0 billion of 5% Senior Notes due 2022 on August 16, 2018.

Revolving Credit Facility

On April 9, 2018, the Company entered into a new unsecured revolving credit facility, maturing on April 9, 2023, with aggregate lender commitments totaling $1.5 billion, which may be increased up to a total of $4.0 billion upon agreement between the Company and participating lenders. In connection with the execution of the new credit facility, the Company terminated its then-existing $2.75 billion credit facility that was due to mature in May 2019. The Company had no outstanding borrowings on its credit facility at June 30, 2018.

Borrowings under the credit facility, if any, bear interest at market-based interest rates plus a margin based on the terms of the borrowing and the credit ratings assigned to the Company's senior, unsecured, long-term indebtedness. The Company incurs commitment fees based on currently assigned credit ratings of 0.20% per annum on the daily average amount of unused borrowing availability under its credit facility.

The Company's new credit facility retains substantially the same restrictive covenants as the previous credit facility, including a requirement that the Company maintain a consolidated net debt to total capitalization ratio of no greater than 0.65 to 1.00. This ratio represents the ratio of net debt (calculated as total face value of debt plus outstanding letters of credit less cash and cash equivalents) divided by the sum of net debt plus total shareholders' equity plus, to the extent resulting in a reduction of total shareholders’ equity, the amount of any non-cash impairment charges incurred, net of any tax effect, after June 30, 2014. The Company was in compliance with the credit facility covenants at June 30, 2018.

15

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

Senior Notes

The following table summarizes the face values, maturity dates, semi-annual interest payment dates, and optional redemption periods related to the Company’s outstanding senior note obligations at June 30, 2018.

	2022 Notes (1)	2023 Notes	2024 Notes	2028 Notes	2044 Notes
Face value (in thousands)	$2,000,000	$1,500,000	$1,000,000	$1,000,000	$700,000
Maturity date	Sep 15, 2022	April 15, 2023	June 1, 2024	January 15, 2028	June 1, 2044
Interest payment dates	March 15, Sep 15	April 15, Oct 15	June 1, Dec 1	Jan 15, July 15	June 1, Dec 1
Make-whole redemption period (2)	—	Jan 15, 2023	Mar 1, 2024	Oct 15, 2027	Dec 1, 2043

(1) The Company has the option to redeem all or a portion of its 2022 Notes at the decreasing redemption prices specified in the indenture related to the 2022 Notes plus any accrued and unpaid interest to the date of redemption. See Note 12. Subsequent Events.

(2) At any time prior to the indicated dates, the Company has the option to redeem all or a portion of its senior notes of the applicable series at the “make-whole” redemption prices or amounts specified in the respective senior note indentures plus any accrued and unpaid interest to the date of redemption. On or after the indicated dates, the Company may redeem all or a portion of its senior notes at a redemption price equal to 100% of the principal amount of the senior notes being redeemed plus any accrued and unpaid interest to the date of redemption.

The Company’s senior notes are not subject to any mandatory redemption or sinking fund requirements.

The indentures governing the Company’s senior notes contain covenants that, among other things, limit the Company’s ability to create liens securing certain indebtedness, enter into certain sale-leaseback transactions, or consolidate, merge or transfer certain assets. The senior note covenants are subject to a number of important exceptions and qualifications. The Company was in compliance with these covenants at June 30, 2018. Three of the Company’s subsidiaries, Banner Pipeline Company, L.L.C., CLR Asset Holdings, LLC, and The Mineral Resources Company, which have no material assets or operations, fully and unconditionally guarantee the senior notes on a joint and several basis. The Company’s other subsidiaries, the value of whose assets and operations are minor, do not guarantee the senior notes.

Note Payable

In February 2012, 20 Broadway Associates LLC, a 100% owned subsidiary of the Company, borrowed $22 million under a 10-year amortizing term loan secured by the Company’s corporate office building in Oklahoma City, Oklahoma. The loan bears interest at a fixed rate of 3.14% per annum. Principal and interest are payable monthly through the loan’s maturity date of February 26, 2022. Accordingly, approximately $2.3 million is reflected as a current liability under the caption “Current portion of long-term debt” in the condensed consolidated balance sheets as of June 30, 2018.

Note 8. Commitments and Contingencies

Included below is a discussion of various future commitments of the Company as of June 30, 2018. The commitments under these arrangements are not recorded in the accompanying condensed consolidated balance sheets.

Drilling commitments – As of June 30, 2018, the Company has drilling rig contracts with various terms extending to June 2021 to ensure rig availability in its key operating areas. Future commitments as of June 30, 2018 total approximately $97 million, of which $42 million is expected to be incurred in the remainder of 2018, $41 million in 2019, $10 million in 2020, and $4 million in 2021.

Transportation and processing commitments – The Company has entered into transportation and processing commitments to guarantee capacity on crude oil and natural gas pipelines and natural gas processing facilities. The commitments, which have varying terms extending as far as 2028, require the Company to pay per-unit transportation or processing charges regardless of the amount of capacity used. Future commitments remaining as of June 30, 2018 under the arrangements amount to approximately $1.36 billion, of which $112 million is expected to be incurred in the remainder of 2018,$225 million in 2019, $194 million in 2020, $175 million in 2021, $168 million in 2022, and $487 million thereafter. The Company is not committed under the above contracts to deliver fixed and determinable quantities of crude oil or natural gas in the future.

Litigation – In November 2010, a putative class action was filed in the District Court of Blaine County, Oklahoma by Billy J. Strack and Daniela A. Renner as trustees of certain named trusts and on behalf of other similarly situated parties against

16

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

the Company. The Petition, as amended, alleged the Company improperly deducted post-production costs from royalties paid to plaintiffs and other royalty interest owners from crude oil and natural gas wells located in Oklahoma. The plaintiffs alleged a number of claims, including breach of contract, fraud, breach of fiduciary duty, unjust enrichment, and other claims and sought recovery of compensatory damages, interest, punitive damages and attorney fees on behalf of the proposed class. The Company denied all allegations and denied that the case was properly brought as a class action. On June 11, 2015, the trial court certified a “hybrid” class requested by plaintiffs over the objections of the Company. The Company appealed the trial court’s class certification order. On February 8, 2017, the Oklahoma Court of Civil Appeals reversed the trial court’s ruling on certification and remanded the case for further proceedings. The plaintiffs filed a Petition for Rehearing which was denied by the Oklahoma Court of Civil Appeals. Plaintiffs then filed a Petition for Writ of Certiorari on May 23, 2017 to the Oklahoma Supreme Court, which was denied on October 2, 2017. On October 10, 2017, Plaintiffs filed with the trial court a “Second Amended and Renewed Motion for Class Action Certification and Request that the Court to Set a Briefing Schedule Related to Class Certification.” During the litigation the Company was not able to estimate a reasonably possible loss or range of loss or what impact, if any, the ultimate resolution of the action would have on its financial condition, results of operations or cash flows due to the preliminary status of the matter, the complexity and number of legal and factual issues presented by the matter and uncertainties with respect to, among other things, the nature of the claims and defenses, the existence and the potential size of the class, the scope and types of the properties and agreements involved, the production years involved, and the ultimate potential outcome of the matter. The Company further disclosed that it was reasonably possible one or more events could occur in the near term that could impact the Company’s ability to estimate the potential effect of this matter if any, on its financial condition, results of operations or cash flows. During the litigation the Company also disclosed plaintiffs alleged underpayments in excess of $200 million as damages, which may increase with the passage of time, a majority of which would be comprised of interest. After certification of the case as a class action was reversed the parties continued settlement negotiations. Due to the uncertainty of and burdens of litigation, on February 16, 2018, the Company reached a settlement in connection with this matter. Under the settlement, the Company initially expected to make payments and incur costs associated with the settlement of approximately $59.6 million. The Company accrued a loss for such amount at December 31, 2017, which was subsequently increased to $61.7 million at June 30, 2018 to reflect additional settlement obligations resulting from the passage of time. Such accrual is included in “Accrued liabilities and other” on the condensed consolidated balance sheets. On April 3, 2018, the District Court of Garfield County, Oklahoma preliminarily approved the settlement and set certain dates applicable to the settlement including the timing and content of Notice, Opt-out, and Objections to Class Members. The Fairness Hearing was held on June 11, 2018. On June 12, 2018, the court entered an order formally approving the settlement. The order approving the settlement is not subject to appeal. On June 20, 2018, the court entered an order approving Plaintiff Counsels’ request for Attorney Fees and Expenses. The deadline for an appeal of the order approving Attorney Fees and Expenses is August 13, 2018. In accordance with the settlement terms, the Company expects to make payments totaling approximately $50 million in the third quarter of 2018 and expects to satisfy the remainder of its settlement obligations in 2019.

The Company is involved in various other legal proceedings including, but not limited to, commercial disputes, claims from royalty and surface owners, property damage claims, personal injury claims, disputes with tax authorities and other matters. While the outcome of these legal matters cannot be predicted with certainty, the Company does not expect them to have a material effect on its financial condition, results of operations or cash flows. In addition to the accrued loss on the matter described above, as of June 30, 2018 and December 31, 2017 the Company recorded a liability in the condensed consolidated balance sheets under the caption “Other noncurrent liabilities” of $4.7 million and $7.6 million, respectively, for various matters, none of which are believed to be individually significant.

Environmental risk – Due to the nature of the crude oil and natural gas business, the Company is exposed to possible environmental risks. The Company is not aware of any material environmental issues or claims.

Note 9. Stock-Based Compensation

The Company has granted restricted stock to employees and directors pursuant to the Continental Resources, Inc. 2013 Long-Term Incentive Plan ("2013 Plan") as discussed below. The Company’s associated compensation expense, which is included in the caption “General and administrative expenses” in the unaudited condensed consolidated statements of comprehensive income (loss), was $10.6 million and $9.1 million for the three months ended June 30, 2018 and 2017, respectively, and $21.5 million and $20.6 million for the six months endedJune 30, 2018 and 2017, respectively.

In May 2013, the Company adopted the 2013 Plan and reserved 19,680,072 shares of common stock that may be issued pursuant to the plan. As of June 30, 2018, the Company had 13,727,512 shares of common stock available for long-term incentive awards to employees and directors under the 2013 Plan.

17

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

Restricted stock is awarded in the name of the recipient and constitutes issued and outstanding shares of the Company’s common stock for all corporate purposes during the period of restriction and, except as otherwise provided under the 2013 Plan or agreement relevant to a given award, includes the right to vote the restricted stock and to receive dividends, subject to forfeiture. Restricted stock grants generally vest over periods ranging from one to three years.

A summary of changes in non-vested restricted shares outstanding for the six months ended June 30, 2018 is presented below.

	Number of non-vested shares		Weighted average grant-date fair value
Non-vested restricted shares outstanding at December 31, 2017	4,026,110		$	35.63
Granted	1,277,491		52.47
Vested	(1,041,748	)	47.10
Forfeited	(178,957	)	37.27
Non-vested restricted shares outstanding at June 30, 2018	4,082,896		$	37.90

The grant date fair value of restricted stock represents the closing market price of the Company’s common stock on the date of grant. Compensation expense for a restricted stock grant is determined at the grant date fair value and is recognized over the vesting period as services are rendered by employees and directors. The Company estimates the number of forfeitures expected to occur in determining the amount of stock-based compensation expense to recognize. There are no post-vesting restrictions related to the Company’s restricted stock. The fair value at the vesting date of restricted stock that vested during the six months endedJune 30, 2018 was approximately $57.0 million. As of June 30, 2018, there was approximately $94 million of unrecognized compensation expense related to non-vested restricted stock. This expense is expected to be recognized over a weighted average period of 1.5 years.

Note 10. Accumulated Other Comprehensive Income (Loss)

Adjustments resulting from the process of translating foreign functional currency financial statements into U.S. dollars are included in “Accumulated other comprehensive income (loss)” within shareholders’ equity in the condensed consolidated balance sheets and “Other comprehensive income, net of tax” in the unaudited condensed consolidated statements of comprehensive income (loss). The following table summarizes the change in accumulated other comprehensive income (loss) for the three and six months ended June 30, 2018 and 2017:

	Three months ended June 30,					Six months ended June 30,
In thousands	2018		2017			2018		2017
Beginning accumulated other comprehensive income (loss), net of tax	$	309	$	(122	)	$	307	$	(260	)
Foreign currency translation adjustments	16		189			18		327
Income taxes (1)	—		—			—		—
Other comprehensive income, net of tax	16		189			18		327
Ending accumulated other comprehensive income, net of tax	$	325	$	67		$	325	$	67

(1) A valuation allowance has been recognized against all deferred tax assets associated with losses generated by the Company's Canadian operations, thereby resulting in no income taxes on other comprehensive income.

Note 11. Income Taxes

Income taxes are accounted for using the liability method under which deferred income taxes are recognized for the future tax effects of temporary differences between financial statement carrying amounts and the tax basis of existing assets and liabilities using the enacted statutory tax rates in effect at period-end. The effect on deferred taxes for a change in tax rates is recognized in income in the period that includes the enactment date. The Company’s policy is to recognize penalties and interest related to unrecognized tax benefits, if any, in income tax expense. A valuation allowance for deferred tax assets is recorded when it is more likely than not that the benefit from the deferred tax asset will not be realized.

The Company's (provision) benefit for income taxes totaled ($75.2) million and $37.9 million for the three months ended June 30, 2018 and 2017, respectively. The Company's (provision) benefit for income taxes totaled ($146.8) million and

18

Continental Resources, Inc. and Subsidiaries

Notes to Unaudited Condensed Consolidated Financial Statements

$31.8 million for the six months endedJune 30, 2018 and 2017, respectively. These amounts differ from the amounts computed by applying the United States statutory federal income tax rate to net income before income taxes. The sources and tax effects of the differences are reflected in the table below:

	Three months ended June 30,										Six months ended June 30,
$ in thousands	2018			Tax rate %		2017			Tax rate %		2018			Tax rate %		2017			Tax rate %
Expected income tax (provision) benefit based on US statutory tax rate (1)	$	(66,716	)	21	%	$	35,494		35	%	$	(130,867	)	21	%	$	33,222		35	%
State income taxes, net of federal benefit	(9,531		)	3	%	3,043			3	%	(18,695		)	3	%	2,848			3	%
Tax benefit (deficiency) from stock-based compensation	359			—	%	(473		)	(1	%)	1,868			—	%	(3,773		)	(4	%)
Canadian valuation allowance (2)	(78		)	—	%	(112		)	—	%	(148		)	—	%	(257		)	—	%
Other, net	734			—	%	(97		)	—	%	1,074			—	%	(207		)	—	%
(Provision) benefit for income taxes	$	(75,232	)	24	%	$	37,855		37	%	$	(146,768	)	24	%	$	31,833		34	%

(1) In December 2017 the Tax Cuts and Jobs Act was signed into law, which among other things reduced the U.S. federal corporate income tax rate from 35% to 21% effective January 1, 2018.

(2) Represents valuation allowances recognized against all deferred tax assets associated with operating loss carryforwards generated by the Company's Canadian operations during the respective periods for which the Company does not expect to realize a benefit.

Note 12. Subsequent Events

Partial redemption of senior notes

On July 12, 2018, the Company announced it will redeem $400 million, or 20%, of its outstanding $2.0 billion of 5% Senior Notes due 2022 on August 16, 2018. The redemption price will be equal to 101.667% of the principal amount called for redemption plus accrued and unpaid interest to the redemption date in accordance with the terms of the 2022 Notes and the related indenture under which the 2022 Notes were issued.

The aggregate of the principal amount, redemption premium, and accrued interest payable upon partial redemption of the 2022 Notes is expected to total approximately $415 million. The Company expects to record a pre-tax loss on extinguishment of debt related to the partial redemption of approximately $7 million, which will be reflected in third quarter 2018 results.

Formation of strategic relationship

On August 6, 2018, the Company executed definitive documents to form a strategic relationship with Franco-Nevada, subject to customary closing conditions, to acquire minerals in the SCOOP and STACK plays, primarily in areas operated by the Company. In accordance with the deal terms, Franco-Nevada has agreed to pay approximately $220 million for a stake in a newly-formed minerals subsidiary. The Company expects to receive the proceeds at closing in the fourth quarter of 2018. The amount to be received by the Company is subject to adjustment under the terms of the transaction documents.

In addition, the parties have also committed, subject to satisfaction of agreed upon development thresholds, to spend up to a combined $125 million per year over the next three years to acquire additional minerals through the newly-formed subsidiary. With a carry component on capital acquisition costs, the Company is to fund 20% of future mineral acquisitions. The Company will be entitled to receive between 25% and 50% of total revenues generated by the minerals subsidiary based upon performance relative to certain predetermined targets.

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ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis should be read in conjunction with the unaudited condensed consolidated financial statements and notes thereto included elsewhere in this report and our historical consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2017. Our operating results for the periods discussed below may not be indicative of future performance. The following discussion and analysis includes forward-looking statements and should be read in conjunction with the risk factors described in Part II, Item 1A. Risk Factors included in this report, if any, and in our Annual Report on Form 10-K for the year ended December 31, 2017, along with Cautionary Statement for the Purpose of the “Safe Harbor” Provisions of the Private Securities Litigation Reform Act of 1995 at the beginning of this report, for information about the risks and uncertainties that could cause our actual results to be materially different than our forward-looking statements.

Overview

We are an independent crude oil and natural gas company engaged in the exploration, development and production of crude oil and natural gas. We derive the majority of our operating income and cash flows from the sale of crude oil and natural gas and expect this to continue in the future. Our operations are primarily focused on exploration and development activities in the Bakken field of North Dakota and Montana and the SCOOP and STACK areas of Oklahoma.

Change in presentation of revenues

As discussed in Notes to Unaudited Condensed Consolidated Financial Statements–Note 4. Revenues, we adopted new revenue recognition and presentation rules on January 1, 2018. The new rules did not have a material impact on the timing of our revenue recognition or our financial position, results of operations, net income, or cash flows for the three and six months ended June 30, 2018, but did impact the presentation of our crude oil and natural gas revenues. We adopted the new rules using a modified retrospective transition approach whereby changes have been applied for periods commencing after December 31, 2017 and prior period results have not been adjusted to conform to current presentation.

Under the new rules, revenues and transportation expenses associated with production from our operated properties are now reported on a gross basis compared to net presentation in the prior year. For non-operated properties, we receive a net payment from the operator for our share of sales proceeds which is net of costs incurred by the operator, if any. Such non-operated revenues are recognized at the net amount of proceeds received, consistent with our historical practice. As a result, beginning January 1, 2018 the gross presentation of revenues from our operated properties differs from the net presentation of revenues from non-operated properties. This impacts the comparability of certain operating metrics, such as per-unit sales prices, when such metrics are prepared in accordance with U.S. GAAP using gross presentation for some revenues and net presentation for others.

In order to provide metrics prepared in a manner consistent with how management assesses the Company's operating results, and to achieve comparability with prior period metrics for analysis purposes, we have presented crude oil and natural gas sales net of transportation expenses within MD&A, which we refer to as "net crude oil and natural gas sales," a non-GAAP measure. Average sales prices calculated using net crude oil and natural gas sales are referred to as "net sales prices," a non-GAAP measure, and are calculated by taking revenues less transportation expenses divided by sales volumes, whether for crude oil or natural gas, as applicable. Management believes presenting our revenues and sales prices net of transportation expenses is useful because it normalizes the presentation differences between operated and non-operated revenues and allows for a useful comparison of net realized prices to NYMEX benchmark prices on a Company-wide basis.

The following table presents a reconciliation of crude oil and natural gas sales (GAAP) to net crude oil and natural gas sales and related net sales prices (non-GAAP) for the three and six months ended June 30, 2018. Information is also presented for the three and six months ended June 30, 2017 for comparative purposes.

	Three months ended June 30, 2018									Three months ended June 30, 2017
In thousands	Crude oil			Natural gas			Total			Crude oil		Natural gas		Total
Crude oil and natural gas sales (GAAP)	$	946,884		$	190,644		$	1,137,528		$	481,898	$	144,650	$	626,548
Less: Transportation expenses	(40,217		)	(7,037		)	(47,254		)	—		—		—
Net crude oil and natural gas sales (non-GAAP for 2018)	$	906,667		$	183,607		$	1,090,274		$	481,898	$	144,650	$	626,548
Sales volumes (MBbl/MMcf/MBoe)	14,311			69,310			25,863			11,499		55,054		20,674
Net sales price (non-GAAP for 2018)	$	63.35		$	2.65		$	42.16		$	41.91	$	2.63	$	30.31

20

	Six months ended June 30, 2018									Six months ended June 30, 2017
In thousands	Crude oil			Natural gas			Total			Crude oil		Natural gas		Total
Crude oil and natural gas sales (GAAP)	$	1,853,165		$	398,215		$	2,251,380		$	962,539	$	297,859	$	1,260,398
Less: Transportation expenses	(80,603		)	(15,948		)	(96,551		)	—		—		—
Net crude oil and natural gas sales (non-GAAP for 2018)	$	1,772,562		$	382,267		$	2,154,829		$	962,539	$	297,859	$	1,260,398
Sales volumes (MBbl/MMcf/MBoe)	28,993			136,040			51,667			22,253		106,114		39,938
Net sales price (non-GAAP for 2018)	$	61.14		$	2.81		$	41.71		$	43.26	$	2.81	$	31.56

Second Quarter 2018 Highlights

Production

Total production for the second quarter of 2018 averaged 284,059 Boe per day, down 1% compared to the first quarter of 2018 and 26% higher than the second quarter of 2017.

Second quarter production was negatively impacted by abnormally rainy weather in the Bakken as well as the voluntary curtailment of production in the STACK play until third party natural gas pipeline infrastructure, which provides access to premium pricing in the North Texas market, became fully operational in early July. Without the impact of these events, our 2018 second quarter production would have been higher by approximately 5,000 Boe per day. Following these events, full production commenced in July.

The following table summarizes the changes in our average daily Boe production by major operating area.

Boe production per day	2Q 2018	2Q 2017	% Change from 2Q 2017		1Q 2018	% Change from 1Q 2018
Bakken	158,119	119,861	32	%	161,356	(2	%)
SCOOP	64,786	61,107	6	%	62,012	4	%
STACK	51,722	31,934	62	%	53,361	(3	%)
All other	9,432	13,311	(29	%)	10,681	(12	%)
Total	284,059	226,213	26	%	287,410	(1	%)

Revenues

Net crude oil and natural gas sales totaled $1.1 billion for the 2018second quarter, a 74% increase compared to the 2017second quarter driven by a 51% increase in crude oil net sales prices coupled with a 25% increase in total sales volumes.

Cash flows

Net cash inflows from operating activities totaled $753.8 million for the second quarter of 2018, exceeding second quarter net cash outflows from investing activities by $38.4 million.

Debt and liquidity

In April 2018 we entered into a new unsecured credit facility, maturing in April 2023, with aggregate lender commitments totaling $1.5 billion. The new credit facility replaced our previous $2.75 billion credit facility that was due to mature in May 2019.

At June 30, 2018 we had no outstanding borrowings on our credit facility and $130.0 million of cash and cash equivalents.

On July 12, 2018 we announced we will redeem $400 million, or 20%, of our outstanding $2.0 billion of 5% Senior Notes due 2022 on August 16, 2018. The redemption price will be equal to 101.667% of the principal amount called for redemption plus accrued and unpaid interest to the redemption date. The aggregate of the principal amount, redemption premium, and accrued interest payable upon partial redemption of the 2022 Notes is expected to total approximately $415 million.

21

Capital expenditures and drilling activity

Non-acquisition capital expenditures totaled $714.2 million for the second quarter of 2018, bringing year to date 2018 non-acquisition capital expenditures to $1.31 billion compared to $978.9 million for year to date 2017.

In the 2018second quarter, production was initiated on 171 gross (56 net) operated and non-operated completed wells, bringing the 2018 year to date total to 309 gross (107 net) completed wells with first production compared to 228 gross (67 net) wells for the comparable 2017 period.

Financial and operating highlights

We use a variety of financial and operating measures to assess our performance. Among these measures are:

• Volumes of crude oil and natural gas produced;

• Crude oil and natural gas net sales price differentials relative to NYMEX benchmark prices; and

• Per unit operating and administrative costs.

The following table contains financial and operating highlights for the periods presented. Average net sales prices exclude any effect of derivative transactions. Per-unit expenses have been calculated using sales volumes.

	Three months ended June 30,						Six months ended June 30,
	2018			2017			2018			2017
Average daily production:
Crude oil (Bbl per day)	157,116			125,381			160,458			122,308
Natural gas (Mcf per day)	761,653			604,991			751,603			586,263
Crude oil equivalents (Boe per day)	284,059			226,213			285,725			220,018
Average net sales prices (1):
Crude oil ($/Bbl)	$	63.35		$	41.91		$	61.14		$	43.26
Natural gas ($/Mcf)	$	2.65		$	2.63		$	2.81		$	2.81
Crude oil equivalents ($/Boe)	$	42.16		$	30.31		$	41.71		$	31.56
Crude oil net sales price discount to NYMEX ($/Bbl)	$	(4.55	)	$	(6.31	)	$	(4.22	)	$	(6.69	)
Natural gas net sales price discount to NYMEX ($/Mcf)	$	(0.15	)	$	(0.56	)	$	(0.08	)	$	(0.43	)
Production expenses ($/Boe)	$	3.49		$	3.99		$	3.54		$	3.89
Production taxes (% of net crude oil and natural gas sales)	7.7		%	6.7		%	7.6		%	6.6		%
Depreciation, depletion, amortization and accretion ($/Boe)	$	17.29		$	19.14		$	17.45		$	19.48
Total general and administrative expenses ($/Boe)	$	1.82		$	1.89		$	1.75		$	2.16

(1) See the previous section titled Change in presentation of revenues for a discussion and calculation of net sales prices, which are non-GAAP measures for the three and six months ended June 30, 2018.

22

Three months ended June 30, 2018 compared to the three months ended June 30, 2017

Results of Operations

The following table presents selected financial and operating information for the periods presented.

	Three months ended June 30,
In thousands	2018			2017
Crude oil and natural gas sales	$	1,137,528		$	626,548
Gain (loss) on natural gas derivatives, net	(12,685		)	28,022
Crude oil and natural gas service operations	12,270			6,916
Total revenues	1,137,113			661,486
Operating costs and expenses	(745,837		)	(690,527		)
Other expenses, net	(73,580		)	(72,371		)
Income (loss) before income taxes	317,696			(101,412		)
(Provision) benefit for income taxes	(75,232		)	37,855
Net income (loss)	$	242,464		$	(63,557	)
Production volumes:
Crude oil (MBbl)	14,298			11,410
Natural gas (MMcf)	69,310			55,054
Crude oil equivalents (MBoe)	25,849			20,585
Sales volumes:
Crude oil (MBbl)	14,311			11,499
Natural gas (MMcf)	69,310			55,054
Crude oil equivalents (MBoe)	25,863			20,674

Production

The following tables reflect our production by product and region for the periods presented.

	Three months ended June 30,						Volume increase	Volume percent increase
	2018			2017
	Volume	Percent		Volume	Percent
Crude oil (MBbl)	14,298	55	%	11,410	55	%	2,888	25	%
Natural gas (MMcf)	69,310	45	%	55,054	45	%	14,256	26	%
Total (MBoe)	25,849	100	%	20,585	100	%	5,264	26	%
	Three months ended June 30,						Volume increase	Volume percent increase
	2018			2017
	MBoe	Percent		MBoe	Percent
North Region	15,177	59	%	11,850	58	%	3,327	28	%
South Region	10,672	41	%	8,735	42	%	1,937	22	%
Total	25,849	100	%	20,585	100	%	5,264	26	%

The 25% increase in crude oil production for the 2018second quarter was primarily driven by a 2,758 MBbls, or 35%, increase in production from properties in North Dakota Bakken due to an increase in well completion activities and improved initial production results being achieved on new wells resulting from optimized completion technologies. Adverse operating conditions caused by abnormally rainy weather in the region kept the production increase from being higher. Additionally, crude oil production from our South region properties in the STACK and SCOOP plays increased 167 MBbls (up 28%) and 161 MBbls (up 11%), respectively, from the prior year second quarter due to additional wells being completed and producing as a result of an increase in our drilling and completion activities in those areas. These increases were partially offset by decreased crude oil production from our North region properties in Montana Bakken and the Red River units due to natural declines in production and the impact of abnormally rainy weather in the region. Montana Bakken crude oil production decreased 86 MBbls, or 16%, while crude oil production in the Red River units decreased 105 MBbls, or 12%, from the prior year second quarter.

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The 26% increase in natural gas production for the 2018second quarter was driven by increased production from our properties in the STACK play due to additional wells being completed and producing subsequent to June 30, 2017. This increase was mitigated by our voluntary curtailment of STACK production until third party pipeline infrastructure, which provides access to premium pricing in the North Texas market, became fully operational in early July. Natural gas production in STACK increased 9,801 MMcf, or 71%, over the prior year second quarter. Additionally, natural gas production in North Dakota Bakken increased 4,968 MMcf, or 35%, in conjunction with the aforementioned increase in crude oil production over the prior year second quarter. Increased drilling and completion activities in the SCOOP play contributed to a 1,043 MMcf, or 4%, increase in natural gas production compared to the prior year period. These increases were partially offset by reduced production from various other areas due to property dispositions, natural declines in production, and limited drilling activities over the past year.

Following the aforementioned weather and curtailment events that negatively impacted our 2018 second quarter production by approximately 5,000 Boe per day, full production commenced in July and we expect to achieve strong oil-weighted production growth in the second half of 2018 in conjunction with the planned completion of large pad development projects.

Revenues

Our revenues consist of sales of crude oil and natural gas, gains and losses resulting from changes in the fair value of our natural gas derivative instruments, and revenues associated with crude oil and natural gas service operations.

Net crude oil and natural gas sales and related net sales prices presented below are non-GAAP measures for the three and six months ended June 30, 2018. See the previous section titled Change in presentation of revenues for discussion and calculation of these measures.

Net crude oil and natural gas sales. Net crude oil and natural gas sales were $1,090.3 million for the second quarter of 2018, a 74% increase from sales of $626.5 million for the 2017second quarter due to increases in crude oil net sales prices and total sales volumes.

Our crude oil net sales prices averaged $63.35 per barrel in the 2018second quarter, an increase of 51% compared to $41.91 per barrel for the 2017second quarter due to higher crude oil market prices and improved price realizations. The differential between NYMEX West Texas Intermediate ("WTI") calendar month prices and our realized crude oil net sales prices averaged $4.55 per barrel for the 2018second quarter compared to $6.31 per barrel for the 2017second quarter. The improved differential was due in part to the amendment of an existing third party transportation arrangement for North region production that resulted in lower per-barrel fees charged to the Company, effective January 1, 2018, along with growth in our South region crude oil production which typically has lower transportation costs compared to the Bakken due to its relatively close proximity to regional refineries and the crude oil trading hub in Cushing, Oklahoma. In addition, market structure improvement for the time roll and increased premium for high quality crude oil also contributed to the improved differential.

Our natural gas net sales prices averaged $2.65 per Mcf for the 2018second quarter, consistent with $2.63 per Mcf for the 2017second quarter. The discount between our realized natural gas net sales prices and NYMEX Henry Hub calendar month prices improved from $0.56 per Mcf for the 2017second quarter to $0.15 per Mcf for the 2018second quarter. We sell the majority of our operated natural gas production to midstream customers at lease locations under multi-year term contracts based on market prices in the field where the sales occur. The field markets are impacted by residue gas and natural gas liquids ("NGLs") prices at secondary, downstream markets. NGL prices have generally increased over prior year levels in conjunction with increased crude oil prices and other factors, resulting in improved price realizations for our natural gas sales stream relative to benchmark prices compared to the prior year second quarter.

Total sales volumes for the second quarter of 2018 increased 5,189 MBoe, or 25%, compared to the 2017second quarter, reflecting an increase in our pace of drilling and completion activities over the past year. For the second quarter of 2018, our crude oil sales volumes increased 24% from the comparable 2017 period, while our natural gas sales volumes increased 26%.

Derivatives. Changes in natural gas prices during the second quarter of 2018 had an unfavorable impact on the fair value of our natural gas derivatives, which resulted in negative revenue adjustments of $12.7 million for the period, representing $17.4 million of non-cash losses partially offset by $4.7 million of cash gains. 

Crude oil and natural gas service operations. Our crude oil and natural gas service operations consist primarily of revenues associated with water gathering, recycling, and disposal activities and the treatment and sale of crude oil reclaimed from waste products. Revenues associated with such activities increased $5.4 million from $6.9 million for the second quarter of 2017 to $12.3 million for the second quarter of 2018 due to an increase in the magnitude of water handling and recycling

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activities compared to the prior period. The increased activities also resulted in a corresponding increase in service-related expenses compared to the prior period.

Operating Costs and Expenses

Production Expenses. Production expenses increased $7.7 million, or 9%, from $82.5 million for the second quarter of 2017 to $90.2 million for the second quarter of 2018 primarily due to an increase in the number of producing wells and related 25% increase in sales volumes. Production expenses on a per-Boe basis decreased to $3.49 for the 2018second quarter compared to $3.99 for the 2017second quarter due to improved operating efficiencies and a decrease in workover-related activities.

Production Taxes. Production taxes increased $41.6 million, or 99%, to $83.6 million for the second quarter of 2018 compared to $42.0 million for the second quarter of 2017 primarily due to higher crude oil and natural gas sales. Production taxes are generally based on the wellhead values of production and vary by state. Production taxes as a percentage of net crude oil and natural gas sales were 7.7% for the second quarter of 2018 compared to 6.7% for the second quarter of 2017. This increase was due in part to a significant increase in production and revenues generated in North Dakota from increased well completion activities over the past year, which has higher production tax rates compared to Oklahoma. Additionally, in 2017 legislation was enacted in Oklahoma that increased the production tax rate from 1% to 4% (effective July 1, 2017) and again from 4% to 7% (effective December 1, 2017) on wells that began producing between July 1, 2011 and July 1, 2015, which contributed to the increase in our average production tax rate for the second quarter of 2018. In March 2018, new legislation was enacted again in Oklahoma that increased the state's production tax rate, effective July 1, 2018, from 2% to 5% for the first 36 months of production for wells commencing production after July 1, 2015, which is expected to result in increased production taxes owed in future periods, the impact of which is uncertain.

Transportation Expenses. See Notes to Unaudited Condensed Consolidated Financial Statements–Note 4. Revenues–Adoption of new revenue recognition and disclosure guidance for discussion of our January 1, 2018 implementation of new revenue recognition and presentation rules that gave rise to the presentation of transportation expenses for the three and six month periods ended June 30, 2018.

Exploration Expenses. Exploration expenses consist primarily of dry hole costs and exploratory geological and geophysical costs that are expensed as incurred. The following table shows the components of exploration expenses for the periods presented.

	Three months ended June 30,
In thousands	2018		2017
Geological and geophysical costs	$	303	$	3,204
Exploratory dry hole costs	—		—
Exploration expenses	$	303	$	3,204

The decrease in geological and geophysical expenses in the 2018 period was due to changes in the timing and amount of costs incurred by the Company and billed to joint interest owners between periods.    

Depreciation, Depletion, Amortization and Accretion (“DD&A”). Total DD&A increased $51.4 million, or 13%, to $447.2 million for the second quarter of 2018 compared to $395.8 million for the second quarter of 2017 due to an increase in total sales volumes which was partially offset by the impact from an increase in the volume of proved developed reserves over which costs are depleted as further discussed below. The following table shows the components of our DD&A on a unit of sales basis for the periods presented.

	Three months ended June 30,
$/Boe	2018		2017
Crude oil and natural gas	$	17.03	$	18.78
Other equipment	0.20		0.29
Asset retirement obligation accretion	0.06		0.07
Depreciation, depletion, amortization and accretion	$	17.29	$	19.14

Estimated proved reserves are a key component in our computation of DD&A expense. Holding all other factors constant, if proved reserves are revised downward, the rate at which we record DD&A expense increases. Conversely, if proved reserves are revised upward, the rate at which we record DD&A expense decreases. Upward revisions to proved developed reserves over the past year due in part to an improvement in commodity prices contributed to a decrease in our DD&A rate for crude oil and natural gas properties in the current period. Additionally, improvements in drilling efficiencies and optimized

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completion technologies over the past year have resulted in an improvement in the quantity of proved reserves found and developed per dollar invested, which also contributed to the reduction in our DD&A rate in the current period.

Property Impairments. Total property impairments decreased $94.1 million, or 76%, to $29.2 million for the 2018second quarter compared to $123.3 million for the 2017second quarter. There were no proved property impairments recognized in the 2018second quarter compared to $81.5 million of such impairments for the second quarter of 2017. Proved property impairments recognized in 2017 were primarily concentrated in the Arkoma Woodford field for which we determined the carrying amount of the field was not recoverable from future cash flows, and therefore, was impaired at June 30, 2017.

Impairments of non-producing properties decreased $12.6 million, or 30%, to $29.2 million for the 2018second quarter compared to $41.8 million for the 2017second quarter. This decrease was due to a lower balance of unamortized leasehold costs in the current period and a reduction over the past year in the Company's estimates of undeveloped properties not expected to be developed prior to lease expiration due to an increase in the allocation of capital to development drilling activities in 2017 and 2018.     

General and Administrative (“G&A”) Expenses. Total G&A expenses increased $8.0 million, or 20%, from $39.2 million for the second quarter of 2017 to $47.2 million for the second quarter of 2018. Total G&A expenses include non-cash charges for equity compensation of $10.6 million and $9.1 million for the second quarters of 2018 and 2017, respectively. G&A expenses other than equity compensation included in the total G&A expense figure above totaled $36.6 million for the 2018second quarter, an increase of $6.5 million, or 22%, compared to $30.1 million for the 2017second quarter. This increase resulted from growth in our operations and associated increase in personnel-related costs in response to the improvement in crude oil prices over the past year, partially offset by higher overhead recoveries from joint interest owners driven by increased completion activities.

The following table shows the components of G&A expenses on a unit of sales basis for the periods presented.

	Three months ended June 30,
$/Boe	2018		2017
General and administrative expenses	$	1.41	$	1.45
Non-cash equity compensation	0.41		0.44
Total general and administrative expenses	$	1.82	$	1.89

Interest Expense. Interest expense totaled $74.3 million for the second quarter of 2018, an increase of 2% compared to $72.7 million for the second quarter of 2017. We incurred higher interest expenses in the 2018 period primarily resulting from higher market interest rates on variable-rate credit facility borrowings, the impact of which was nearly offset by lower interest expenses resulting from a decrease in total outstanding debt in the current period. Our weighted average outstanding long-term debt balance for the 2018second quarter was approximately $6.3 billion with a weighted average interest rate of 4.5%compared to averages of $6.6 billion and 4.2% for the 2017second quarter. The 2018second quarter includes approximately $5 million of interest expense associated with the $400 million portion of our 2022 Notes that will be redeemed on August 16, 2018.

Income Taxes. For the second quarters of 2018 and 2017 we provided for income taxes at a combined federal and state tax rate of 24% and 38%, respectively, of pre-tax income (loss) generated by our operations in the United States. We recorded an income tax provision for the second quarter of 2018 of $75.2 million compared to an income tax benefit of $37.9 million for the second quarter of 2017, which resulted in effective tax rates of 24% and 37%, respectively, after taking into account statutory tax rates, permanent taxable differences, tax effects from stock-based compensation, valuation allowances, and other items. Our tax provision for the 2018 period reflects our application of the Tax Cuts and Jobs Act that was signed into law in December 2017, which among other things reduced the U.S. federal corporate income tax rate from 35% to 21% effective January 1, 2018. See Notes to Unaudited Condensed Consolidated Financial Statements–Note 11. Income Taxes for a summary of the sources and tax effects of items comprising our effective tax rates for the second quarters of 2018 and 2017.

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Six months ended June 30, 2018 compared to the six months ended June 30, 2017

Results of Operations

The following table presents selected financial and operating information for the periods presented.

	Six months ended June 30,
In thousands	2018			2017
Crude oil and natural gas sales	$	2,251,380		$	1,260,398
Gain (loss) on crude oil and natural gas derivatives, net	(2,511		)	74,880
Crude oil and natural gas service operations	29,272			11,636
Total revenues	2,278,141			1,346,914
Operating costs and expenses	(1,506,143		)	(1,298,734		)
Other expenses, net	(148,820		)	(143,101		)
Income (loss) before income taxes	623,178			(94,921		)
(Provision) benefit for income taxes	(146,768		)	31,833
Net income (loss)	$	476,410		$	(63,088	)
Production volumes:
Crude oil (MBbl)	29,043			22,138
Natural gas (MMcf)	136,040			106,114
Crude oil equivalents (MBoe)	51,716			39,823
Sales volumes:
Crude oil (MBbl)	28,993			22,253
Natural gas (MMcf)	136,040			106,114
Crude oil equivalents (MBoe)	51,667			39,938

Production

The following tables reflect our production by product and region for the periods presented.

	Six months ended June 30,						Volume increase	Volume percent increase
	2018			2017
	Volume	Percent		Volume	Percent
Crude oil (MBbl)	29,043	56	%	22,138	56	%	6,905	31	%
Natural gas (MMcf)	136,040	44	%	106,114	44	%	29,926	28	%
Total (MBoe)	51,716	100	%	39,823	100	%	11,893	30	%
	Six months ended June 30,						Volume increase	Volume percent increase
	2018			2017
	MBoe	Percent		MBoe	Percent
North Region	30,577	59	%	22,597	57	%	7,980	35	%
South Region	21,139	41	%	17,226	43	%	3,913	23	%
Total	51,716	100	%	39,823	100	%	11,893	30	%

The 31% increase in crude oil production for year to date2018 was primarily driven by a 6,514 MBbls, or 43%, increase in production from properties in North Dakota Bakken due to an increase in well completion activities and improved initial production results being achieved on new wells resulting from optimized completion technologies. Adverse operating conditions in the second quarter caused by abnormally rainy weather in the region kept the production increase from being higher. Additionally, crude oil production from our South region properties in the STACK and SCOOP plays increased 644 MBbls (up 56%) and 106 MBbls (up 4%), respectively, from the prior year period due to additional wells being completed and producing as a result of an increase in our drilling and completion activities in those areas. These increases were partially offset by decreased crude oil production from our North region properties in Montana Bakken and the Red River units due to natural declines in production and the impact of abnormally rainy weather in the region in the second quarter. Montana Bakken crude oil production decreased 181 MBbls, or 16%, while crude oil production in the Red River units decreased 172 MBbls, or 10%, from the prior year period.

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The 28% increase in natural gas production for year to date2018 was primarily driven by increased production from our properties in the STACK play due to additional wells being completed and producing subsequent to June 30, 2017. This increase was mitigated by our voluntary curtailment of STACK production in the second quarter until third party pipeline infrastructure, which provides access to premium pricing in the North Texas market, became fully operational in early July. Natural gas production in STACK increased 19,954 MMcf, or 76%, over the prior year period. Additionally, natural gas production in North Dakota Bakken increased 11,316 MMcf, or 45%, in conjunction with the aforementioned increase in crude oil production over the prior year. Increased drilling and completion activities in the SCOOP play contributed to a 1,284 MMcf, or 3%, increase in natural gas production compared to the prior year period. These increases were partially offset by reduced production from various other areas due to property dispositions, natural declines in production, and limited drilling activities over the past year.

Revenues

Net crude oil and natural gas sales. Net crude oil and natural gas sales for year to date2018 were $2.15 billion, a 71% increase from sales of $1.26 billion for the comparable 2017 period due to increases in crude oil net sales prices and total sales volumes.

Our crude oil net sales prices averaged $61.14 per barrel for year to date2018, an increase of 41% compared to $43.26 per barrel for year to date2017 due to higher crude oil market prices and improved price realizations. The differential between NYMEX WTI calendar month prices and our realized crude oil net sales prices averaged $4.22 per barrel for year to date2018 compared to $6.69 per barrel for year to date2017. The improved differential was due in part to the amendment of an existing third party transportation arrangement for North region production that resulted in lower per-barrel fees charged to the Company, effective January 1, 2018, along with growth in our South region crude oil production which typically has lower transportation costs compared to the Bakken due to its relatively close proximity to regional refineries and the crude oil trading hub in Cushing, Oklahoma. In addition, market structure improvement for the time roll and increased premium for high quality crude oil also contributed to the improved differential.

Our natural gas net sales prices averaged $2.81 per Mcf for year to date2018, consistent with $2.81 per Mcf for year to date2017. The discount between our realized natural gas net sales prices and NYMEX Henry Hub calendar month prices improved from $0.43 per Mcf for year to date2017 to $0.08 per Mcf for year to date2018. NGL prices have generally increased over prior year levels in conjunction with increased crude oil prices and other factors, resulting in improved price realizations for our natural gas sales stream relative to benchmark prices compared to the prior year.

Total sales volumes for year to date2018 increased 11,729 MBoe, or 29%, compared to year to date2017, reflecting an increase in our pace of drilling and completion activities over the past year. For year to date2018, our crude oil sales volumes increased 30% from the comparable 2017 period, while our natural gas sales volumes increased 28%.

Derivatives. Changes in natural gas prices during the six months ended June 30, 2018 had an unfavorable impact on the fair value of our natural gas derivatives, which resulted in negative revenue adjustments of $2.5 million for the period, representing $11.5 million of non-cash losses partially offset by $9.0 million of cash gains. 

Crude oil and natural gas service operations. Revenues associated with our crude oil and natural gas service operations increased $17.7 million from $11.6 million for year to date2017 to $29.3 million for year to date2018 due to an increase in the magnitude of water handling and recycling activities compared to the prior period. The increased activities also resulted in a corresponding increase in service-related expenses compared to the prior period.

Operating Costs and Expenses

Production Expenses. Production expenses increased $27.8 million, or 18%, from $155.3 million for year to date2017 to $183.1 million for year to date2018 primarily due to an increase in the number of producing wells and related 29% increase in sales volumes. Production expenses on a per-Boe basis decreased to $3.54 for year to date2018 compared to $3.89 for the comparable 2017 period due to improved operating efficiencies and a decrease in workover-related activities.

Production Taxes. Production taxes increased $81.0 million, or 97%, to $164.2 million for year to date2018 compared to $83.2 million for year to date2017 primarily due to higher crude oil and natural gas sales. Production taxes as a percentage of net crude oil and natural gas sales were 7.6% for year to date2018 compared to 6.6% for year to date2017. This increase resulted from a significant increase in production and revenues generated in North Dakota over the past year, which has higher production tax rates compared to Oklahoma, along with the aforementioned legislation enacted in Oklahoma in 2017 that increased the production tax rate on certain producing wells.

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Exploration Expenses. The following table shows the components of exploration expenses for the periods presented.

	Six months ended June 30,
In thousands	2018		2017
Geological and geophysical costs	$	2,022	$	8,045
Exploratory dry hole costs	1		157
Exploration expenses	$	2,023	$	8,202

The decrease in geological and geophysical expenses in the 2018 period was due to changes in the timing and amount of costs incurred by the Company and billed to joint interest owners between periods. 

Depreciation, Depletion, Amortization and Accretion. Total DD&A increased $123.7 million, or 16%, to $901.6 million for year to date2018 compared to $777.9 million for the comparable period in 2017 due to an increase in total sales volumes which was partially offset by the impact from an increase in the volume of proved developed reserves over which costs are depleted. The following table shows the components of our DD&A on a unit of sales basis for the periods presented.

	Six months ended June 30,
$/Boe	2018		2017
Crude oil and natural gas	$	17.19	$	19.10
Other equipment	0.20		0.31
Asset retirement obligation accretion	0.06		0.07
Depreciation, depletion, amortization and accretion	$	17.45	$	19.48

Upward revisions to proved developed reserves over the past year due in part to an improvement in commodity prices contributed to a decrease in our DD&A rate for crude oil and natural gas properties in 2018 compared to 2017. Additionally, improvements in drilling efficiencies and optimized completion technologies over the past year have resulted in an improvement in the quantity of proved reserves found and developed per dollar invested, which also contributed to the reduction in our DD&A rate in the current period.

Property Impairments. Total property impairments decreased $111.8 million, or 64%, to $62.9 million for year to date2018 compared to $174.7 million for year to date2017. There were no proved property impairments recognized for year to date2018 compared to $82.3 million for year to date2017.

Impairments of non-producing properties decreased $29.4 million, or 32%, to $62.9 million for year to date2018 compared to $92.3 million for year to date2017. This decrease was due to a lower balance of unamortized leasehold costs in the current period and a reduction over the past year in the Company's estimates of undeveloped properties not expected to be developed prior to lease expiration due to an increase in the allocation of capital to development drilling activities in 2017 and 2018.     

General and Administrative Expenses. Total G&A expenses increased $3.8 million, or 4%, from $86.4 million for year to date2017 to $90.2 million for year to date2018. Total G&A expenses include non-cash charges for equity compensation of $21.5 million and $20.6 million for year to date2018 and year to date2017, respectively. G&A expenses other than equity compensation included in the total G&A expense figure above totaled $68.7 million for year to date2018, an increase of $2.9 million, or 4%, compared to $65.8 million for the comparable 2017 period. This increase resulted from growth in our operations and associated increase in personnel-related costs in response to the improvement in crude oil prices over the past year, partially offset by higher overhead recoveries from joint interest owners driven by increased completion activities.

The following table shows the components of G&A expenses on a unit of sales basis for the periods presented.

	Six months ended June 30,
$/Boe	2018		2017
General and administrative expenses	$	1.33	$	1.65
Non-cash equity compensation	0.42		0.51
Total general and administrative expenses	$	1.75	$	2.16

The decrease in G&A expenses on a per-Boe basis was driven by a 29% increase in total sales volumes from new well completions with no comparable increase in G&A expenses.

Interest Expense.Year to date interest expense increased $6.3 million, or 4%, to $150.2 million compared to $143.9 million for the comparable 2017 period. We incurred higher interest expenses in the 2018 period primarily resulting from higher

29

market interest rates on variable-rate credit facility borrowings, the impact of which was partially offset by lower interest expenses resulting from a decrease in total outstanding debt in the current period. Our weighted average outstanding long-term debt balance for year to date2018 was approximately $6.3 billion with a weighted average interest rate of 4.5% compared to averages of $6.6 billion and 4.2% for the comparable period in 2017. The year to date2018 period includes approximately $10 million of interest expense associated with the $400 million portion of our 2022 Notes that will be redeemed on August 16, 2018.

Income Taxes. For the six months ended June 30, 2018 and 2017 we provided for income taxes at a combined federal and state tax rate of 24% and 38%, respectively, of pre-tax income (loss) generated by our operations in the United States. We recorded an income tax provision for the six months ended June 30, 2018 of $146.8 million compared to an income tax benefit of $31.8 million for the six months ended June 30, 2017, which resulted in effective tax rates of 24% and 34%, respectively, after taking into account statutory tax rates, permanent taxable differences, tax effects from stock-based compensation, valuation allowances, and other items. See Notes to Unaudited Condensed Consolidated Financial Statements–Note 11. Income Taxes for a summary of the sources and tax effects of items comprising our effective tax rates for the six months ended June 30, 2018 and 2017.

Liquidity and Capital Resources

Our primary sources of liquidity have historically been cash flows generated from operating activities, financing provided by our revolving credit facility and the issuance of debt securities. Additionally, in recent years non-strategic asset dispositions have provided a source of cash flow for use in reducing debt and enhancing liquidity. We intend to continue reducing our long-term debt using available cash flows from operations and/or proceeds from additional potential sales of non-strategic assets or through joint development arrangements; however, no assurance can be given that such transactions will occur.

Based on our planned capital spending, our forecasted cash flows and projected levels of indebtedness, we expect to maintain compliance with the covenants under our revolving credit facility and senior note indentures for at least the next 12 months. Further, we expect to meet in the ordinary course of business other contractual cash commitments to third parties as of June 30, 2018, including those described in Note 8. Commitments and Contingencies in Notes to Unaudited Condensed Consolidated Financial Statements, recognizing we may be required to meet such commitments even if our business plan assumptions were to change. We monitor our capital spending closely based on actual and projected cash flows and have the ability to reduce spending or dispose of assets to preserve liquidity and financial flexibility if needed to fund our operations.

Cash Flows

Cash flows provided by operating activities

Our net cash provided by operating activities totaled $1,640.0 million and $916.6 million for the six months ended June 30, 2018 and 2017, respectively. The increase in operating cash flows was primarily due to an increase in crude oil and natural gas revenues driven by higher realized crude oil net sales prices and total sales volumes in 2018, the effects of which were partially offset primarily by increases in production expenses and production taxes.

Cash flows used in investing activities

During the six months ended June 30, 2018 and 2017, we had cash flows used in investing activities of $1,343.6 million and $879.3 million, respectively. These totals include cash capital expenditures of $1,371.0 million and $887.3 million, respectively, inclusive of exploration and development drilling, property acquisitions, and dry hole costs. Property acquisitions totaled $73.7 million and $19.2 million for the six months ended June 30, 2018 and 2017, respectively. The increase in capital spending was driven by an increase in our capital budget and related drilling and completion activities in 2018. Our non-acquisition capital expenditures for full year 2018 are budgeted to be $2.7 billion compared to $2.0 billion of non-acquisition capital spending for full year 2017.

Cash flows used in financing activities

Net cash used in financing activities for the six months ended June 30, 2018 and 2017 totaled $210.3 million and $36.7 million, respectively, primarily resulting from $188 million and $25 million, respectively, of net repayments on our revolving credit facility using available cash flows from operations.

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Future Sources of Financing

Although we cannot provide any assurance, we believe funds from operating cash flows, our remaining cash balance and availability under our revolving credit facility should be sufficient to meet our cash requirements inclusive of, but not limited to, normal operating needs, our pending partial senior note redemption, debt service obligations, planned capital expenditures, and commitments for at least the next 12 months.     

Our planned 2018 capital expenditures are expected to be funded entirely from operating cash flows. Additionally, under the current commodity price environment we expect to generate significant cash flows in excess of operating and capital needs in 2018, which we plan to apply toward further reduction of debt in the future.

We currently anticipate we will be able to generate or obtain funds sufficient to meet our short-term and long-term cash requirements. If cash flows are materially impacted by declines in commodity prices, we have the ability to reduce our capital expenditures or utilize the availability of our revolving credit facility if needed to fund our operations. We may choose to access the capital markets for additional financing or capital to take advantage of business opportunities that may arise. Further, we may sell additional assets or enter into strategic joint development opportunities in order to obtain funding for our operations and capital program if such transactions can be executed on satisfactory terms.

Revolving credit facility

On April 9, 2018, we entered into a new unsecured revolving credit facility, maturing on April 9, 2023, with aggregate lender commitments totaling $1.5 billion, which may be increased up to a total of $4.0 billion upon agreement between the Company and participating lenders. In connection with the execution of the new credit facility, we terminated our then-existing $2.75 billion credit facility that was due to mature in May 2019.

As of July 31, 2018, we had no outstanding borrowings and approximately $1.5 billion of borrowing availability on our credit facility.

The commitments under our credit facility are not dependent on a borrowing base calculation subject to periodic redetermination based on changes in commodity prices and proved reserves. Additionally, downgrades or other negative rating actions with respect to our credit rating would not trigger a reduction in our current credit facility commitments, nor would such actions trigger a security requirement or change in covenants.

Our new credit facility retains substantially the same restrictive covenants as our previous credit facility, including covenants that may limit our ability to, among other things, incur additional indebtedness, incur liens, engage in sale and leaseback transactions, or merge, consolidate or sell all or substantially all of our assets, and a financial covenant that requires us to maintain a consolidated net debt to total capitalization ratio of no greater than 0.65 to 1.00. This ratio represents the ratio of net debt (calculated as total face value of debt plus outstanding letters of credit less cash and cash equivalents) divided by the sum of net debt plus total shareholders' equity plus, to the extent resulting in a reduction of total shareholders’ equity, the amount of any non-cash impairment charges incurred, net of any tax effect, after June 30, 2014.

We were in compliance with our credit facility covenants at June 30, 2018 and expect to maintain compliance for at least the next 12 months. At June 30, 2018, our consolidated net debt to total capitalization ratio was 0.47 to 1.00. We do not believe the revolving credit facility covenants are reasonably likely to limit our ability to undertake additional debt financing to a material extent if needed to support our business. At June 30, 2018, our total debt would have needed to independently increase by approximately $6.4 billion above the existing level at that date (with no corresponding increase in cash or reduction in refinanced debt) to reach the maximum covenant ratio of 0.65 to 1.00. Alternatively, our total shareholders' equity would have needed to independently decrease by approximately $3.5 billion (excluding the after-tax impact of any non-cash impairment charges) below the existing level at June 30, 2018 to reach the maximum covenant ratio. These independent point-in-time sensitivities do not take into account other factors that could arise to mitigate the impact of changes in debt and equity on our consolidated net debt to total capitalization ratio, such as disposing of assets or exploring alternative sources of capitalization.

Joint development agreement funding

In September 2014, we entered into an agreement with a U.S. subsidiary of SK E&S Co. Ltd ("SK") of South Korea to jointly develop a portion of the Company's STACK properties. Pursuant to the agreement, SK will fund, or carry, 50% of our drilling and completion costs attributable to an area of mutual interest in the STACK play until approximately $270 million has been expended by SK on our behalf. As of June 30, 2018, approximately $56 million of the carry had yet to be realized and is expected to be realized through mid-2019.

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Strategic mineral relationship

See Note 12. Subsequent Events in Notes to Unaudited Condensed Consolidated Financial Statements for discussion of the capital requirements and future sources of financing associated with our newly formed strategic relationship with Franco-Nevada to acquire minerals in the SCOOP and STACK plays.

Future Capital Requirements

Senior notes

Our debt includes outstanding senior note obligations totaling $6.2 billion at June 30, 2018, including the portion of our 2022 Notes to be redeemed in August 2018 as discussed below. Our senior notes are not subject to any mandatory redemption or sinking fund requirements. For further information on the face values, maturity dates, semi-annual interest payment dates, optional redemption periods and covenant restrictions related to our senior notes, refer to Note 7. Long-Term Debt in Notes to Unaudited Condensed Consolidated Financial Statements.

We were in compliance with our senior note covenants at June 30, 2018 and expect to maintain compliance for at least the next 12 months. We do not believe the senior note covenants will materially limit our ability to undertake additional debt financing. Downgrades or other negative rating actions with respect to the credit ratings assigned to our senior unsecured debt would not trigger additional senior note covenants.

Three of our subsidiaries, Banner Pipeline Company, L.L.C., CLR Asset Holdings, LLC, and The Mineral Resources Company, which have no material assets or operations, fully and unconditionally guarantee the senior notes on a joint and several basis. Our other subsidiaries, the value of whose assets and operations are minor, do not guarantee the senior notes as of June 30, 2018.

Partial senior note redemption

In July 2018 we announced we will redeem $400 million, or 20%, of our outstanding $2.0 billion of 5% Senior Notes due 2022 on August 16, 2018. Refer to Note 12. Subsequent Events in Notes to Unaudited Condensed Consolidated Financial Statements for additional discussion. We expect to fund the partial redemption using a combination of cash on hand and borrowings under our credit facility. Credit facility borrowings incurred to fund the partial redemption are expected to be subsequently repaid using available cash flows.

Capital expenditures

We evaluate opportunities to purchase or sell crude oil and natural gas properties and expect to participate as a buyer or seller of properties at various times. We seek acquisitions that utilize our technical expertise or offer opportunities to expand our existing core areas. Acquisition expenditures are not budgeted.

In August 2018 we increased our 2018 capital expenditures budget from $2.3 billion to $2.7 billion excluding acquisitions, which reflects incremental spending associated with acquired minerals and additional drilling and completion activities planned for our oil-weighted assets.

For the six months ended June 30, 2018, we invested $1.3 billion in our capital program excluding $73.7 million of unbudgeted acquisitions and including $14.7 million of capital costs associated with increased accruals for capital expenditures. Our 2018 year to date capital expenditures were allocated as follows:

In millions	1Q 2018		2Q 2018		YTD 2018
Exploration and development drilling	$	496.3	$	627.9	$	1,124.2
Land costs	67.0		44.9		111.9
Capital facilities, workovers and other corporate assets	33.0		41.4		74.4
Seismic	—		—		—
Capital expenditures, excluding acquisitions	596.3		714.2		1,310.5
Acquisitions of producing properties	2.6		21.5		24.1
Acquisitions of non-producing properties	28.0		21.6		49.6
Total acquisitions	30.6		43.1		73.7
Total capital expenditures	$	626.9	$	757.3	$	1,384.2

Our drilling and completion activities and the actual amount and timing of our capital expenditures may differ materially from our budget as a result of, among other things, access to capital, available cash flows, unbudgeted acquisitions, actual drilling and completion results, the availability of drilling and completion rigs and other services and equipment, the

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availability of transportation and processing capacity, changes in commodity prices, and regulatory, technological and competitive developments. We monitor our capital spending closely based on actual and projected cash flows and may scale back our capital spending plans should commodity prices decrease from current levels. Conversely, an increase in commodity prices from current levels could result in increased capital expenditures. We expect to continue participating as a buyer of properties when and if we have the ability to increase our position in strategic plays at competitive terms.

Commitments and contingencies

Refer to Note 8. Commitments and Contingencies in Notes to Unaudited Condensed Consolidated Financial Statements for discussion of certain future commitments and contingencies of the Company as of June 30, 2018, including discussion of a litigation settlement obligation expected to be paid in the third quarter of 2018. We believe our cash flows from operations, our remaining cash balance, and amounts available under our revolving credit facility will be sufficient to satisfy such commitments and contingencies.

Off-balance sheet arrangements

Currently, we do not have any off-balance sheet arrangements with unconsolidated entities to enhance liquidity and capital resources.

Critical Accounting Policies

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure and estimation of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results may differ from those estimates.

Revenues

On January 1, 2018 we adopted Accounting Standards Update 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which impacted the presentation of our crude oil and natural gas revenues. For the sale of crude oil and natural gas, we evaluate whether we are the principal, and report revenues on a gross basis, or an agent, and report revenues on a net basis. In this assessment, we consider if we obtain control of the products before they are transferred to the customer as well as other indicators. Applying the control principle to transactions with customers requires significant judgment.

See Notes to Unaudited Condensed Consolidated Financial Statements–Note 4. Revenues for discussion of the impact from adoption of ASU 2016-08. There have been no other changes in our application of critical accounting policies from those disclosed in our 2017 Form 10-K.

New Accounting Pronouncements

See Notes to Unaudited Condensed Consolidated Financial Statements–Note 2. Basis of Presentation and Significant Accounting Policies for a discussion of the new revenue recognition and presentation pronouncements adopted on January 1, 2018 along with a discussion of accounting pronouncements not yet adopted.

ITEM 3. Quantitative and Qualitative Disclosures About Market Risk    

General. We are exposed to a variety of market risks including commodity price risk, credit risk, and interest rate risk. We seek to address these risks through a program of risk management which may include the use of derivative instruments.

Commodity Price Risk. Our primary market risk exposure is in the prices we receive from sales of our crude oil and natural gas production. Realized pricing is primarily driven by the prevailing worldwide price for crude oil and spot market prices applicable to our natural gas production. Pricing for crude oil and natural gas has been volatile and unpredictable for several years, and we expect this volatility to continue in the future. The prices we receive for production depend on many factors outside of our control, including volatility in the differences between product prices at sales points and the applicable index prices. Based on our average daily production for the six months ended June 30, 2018, and excluding any effect of our derivative instruments in place, our annual revenue would increase or decrease by approximately $586 million for each $10.00 per barrel change in crude oil prices at June 30, 2018 and $274 million for each $1.00 per Mcf change in natural gas prices at June 30, 2018.

To reduce price risk caused by market fluctuations in crude oil and natural gas prices, from time to time we may economically hedge a portion of our anticipated crude oil and natural gas production as part of our risk management program. In addition, we may utilize basis contracts to hedge the differential between derivative contract index prices and those of our

33

physical pricing points. Reducing our exposure to price volatility helps secure funds to be used for our capital program. Our decision on the quantity and price at which we choose to hedge our production is based in part on our view of current and future market conditions. We may choose not to hedge future production if the price environment for certain time periods is deemed to be unfavorable. Additionally, we may choose to liquidate existing derivative positions prior to the expiration of their contractual maturities in order to monetize gain positions for the purpose of funding our capital program. While hedging, if utilized, limits the downside risk of adverse price movements, it also limits future revenues from upward price movements. We have hedged the majority of our forecasted natural gas production through December 2018. Our future crude oil production, and future natural gas production beyond December 2018, is currently unhedged and directly exposed to volatility in market prices, whether favorable or unfavorable.

Changes in natural gas prices during the six months ended June 30, 2018 had an overall unfavorable impact on the fair value of our derivative instruments. For the six months ended June 30, 2018, we recognized cash gains on natural gas derivatives of $9.0 million which were more than offset by non-cash mark-to-market losses on natural gas derivatives of $11.5 million.

The fair value of our natural gas derivative instruments at June 30, 2018 was a net liability of $8.9 million. An assumed increase in the forward prices used in the June 30, 2018 valuation of our natural gas derivatives of $1.00 per MMBtu would increase our natural gas derivative liability to approximately $105 million at June 30, 2018. Conversely, an assumed decrease in forward prices of $1.00 per MMBtu would change our natural gas derivative valuation to a net asset of approximately $87 million at June 30, 2018. Changes in the fair value of our natural gas derivatives from the above price sensitivities would produce a corresponding change in our total revenues.

Credit Risk. We monitor our risk of loss due to non-performance by counterparties of their contractual obligations. Our principal exposure to credit risk is through the sale of our crude oil and natural gas production, which we market to energy marketing companies, crude oil refining companies, and natural gas gathering and processing companies ($671 million in receivables at June 30, 2018); our joint interest and other receivables ($506 million at June 30, 2018); and counterparty credit risk associated with our derivative instrument receivables, if any.

We monitor our exposure to counterparties on crude oil and natural gas sales primarily by reviewing credit ratings, financial statements and payment history. We extend credit terms based on our evaluation of each counterparty’s credit worthiness. We have not generally required our counterparties to provide collateral to secure crude oil and natural gas sales receivables owed to us. Historically, our credit losses on crude oil and natural gas sales receivables have been immaterial.

Joint interest receivables arise from billing the individuals and entities who own a partial interest in the wells we operate. These individuals and entities participate in our wells primarily based on their ownership in leases included in units on which we wish to drill. We can do very little to choose who participates in our wells. In order to minimize our exposure to this credit risk we generally request prepayment of drilling costs where it is allowed by contract or state law. For such prepayments, a liability is recorded and subsequently reduced as the associated work is performed. This liability was $47 million at June 30, 2018, which will be used to offset future capital costs when billed. In this manner, we reduce credit risk. We may have the right to place a lien on a co-owner's interest in the well to redirect production proceeds in order to secure payment or, if necessary, foreclose on the interest. Historically, our credit losses on joint interest receivables have been immaterial.

Our use of derivative instruments involves the risk that our counterparties will be unable to meet their commitments under the arrangements. We manage this risk by using multiple counterparties who we consider to be financially strong in order to minimize our exposure to credit risk with any individual counterparty.

Interest Rate Risk. Our exposure to changes in interest rates relates primarily to variable-rate borrowings, if any, we may have outstanding from time to time under our revolving credit facility. Such borrowings bear interest at market-based interest rates plus a margin based on the terms of the borrowing and the credit ratings assigned to our senior, unsecured, long-term indebtedness. All of our other long-term indebtedness is fixed rate and does not expose us to the risk of cash flow loss due to changes in market interest rates.

We had no outstanding borrowings on our revolving credit facility at July 31, 2018.

We manage our interest rate exposure by monitoring both the effects of market changes in interest rates and the proportion of our debt portfolio that is variable-rate versus fixed-rate debt. We may utilize interest rate derivatives to alter interest rate exposure in an attempt to reduce interest rate expense related to existing debt issues. Interest rate derivatives may be used solely to modify interest rate exposure and not to modify the overall leverage of the debt portfolio. We currently have no interest rate derivatives.

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ITEM 4.    Controls and Procedures

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this report, an evaluation of the effectiveness of the design and operation of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) was performed under the supervision and with the participation of the Company’s management, including its Chief Executive Officer and Chief Financial Officer. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded the Company’s disclosure controls and procedures were effective as of June 30, 2018 to ensure information required to be disclosed in the reports it files and submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and information required to be disclosed under the Exchange Act is accumulated and communicated to the Company’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

During the three months ended June 30, 2018, there were no changes in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations on Controls and Procedures

A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risks that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. Accordingly, even an effective system of internal control will provide only reasonable assurance that the objectives of the internal control system are met.

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PART II. Other Information

ITEM 1. Legal Proceedings

See Note 8. Commitments and Contingencies–Litigation in Part I, Item I. Financial Statements–Notes to Unaudited Condensed Consolidated Financial Statements for a discussion of the legal matter involving the Company, Billy J. Strack and Daniela A. Renner, which is incorporated herein by reference.

We have received Notices of Violation from the North Dakota Department of Health ("NDDH") alleging violations of the state’s air quality and water pollution control laws and rules.  We exchanged information and engaged in discussions with NDDH aimed at resolving the allegations and anticipate further discussions and exchanges.  Resolution of the allegations may result in monetary penalties exceeding $100,000.

ITEM 1A. Risk Factors

In addition to the information set forth in this Form 10-Q, you should carefully consider the risk factors discussed in Part I, Item 1A. Risk Factors in our 2017 Form 10-K, which could materially affect our business, financial condition or future results. The risks described in this Form 10-Q, if any, and in our 2017 Form 10-K are not the only risks facing our Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition or future results.

There have been no material changes in our risk factors from those disclosed in our 2017 Form 10-K.

ITEM 2. Unregistered Sales of Equity Securities and Use of Proceeds

(a) Recent Sales of Unregistered Securities – Not applicable.

(b) Use of Proceeds – Not applicable.

(c)Purchases of Equity Securities by the Issuer and Affiliated Purchasers – The following table provides information about purchases of shares of our common stock during the three months ended June 30, 2018:

Period	Total number of shares purchased (1)		Average price paid per share			Total number of shares purchased as part of publicly announced plans or programs	Maximum number of  shares that may yet be purchased under the plans or programs
April 1, 2018 to April 30, 2018	462		$	58.94		—	—
May 1, 2018 to May 31, 2018	146,393	(2)	$	65.51	(2)	—	—
June 1, 2018 to June 30, 2018	543		$	65.62		—	—
Total	147,398		$	65.49		—	—

(1) In connection with restricted stock grants under the Company's 2013 Long-Term Incentive Plan, we adopted a policy that enables employees to surrender shares to cover their tax liability. Shares indicated as having been purchased in the table above represent shares surrendered by employees to cover tax liabilities unless otherwise noted. We paid the associated taxes to the applicable taxing authorities.

(2) Of this amount, 10,393 shares represent shares surrendered by employees to cover tax liabilities at an average price per share of $68.30. The price paid per share was the closing price of our common stock on the date the restrictions lapsed on such shares. Additionally, the amount includes 136,000 shares of our common stock purchased by Harold G. Hamm, our Chairman of the Board, Chief Executive Officer, and principal shareholder in open-market transactions at an average price per share of $65.30.

ITEM 3. Defaults Upon Senior Securities

Not applicable.

ITEM 4. Mine Safety Disclosures

Not applicable.

ITEM 5.    Other Information

Not applicable.

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ITEM 6. Exhibits

The exhibits required to be filed pursuant to Item 601 of Regulation S-K are set forth below.

3.1	Conformed version of Third Amended and Restated Certificate of Incorporation of Continental Resources, Inc. as amended by amendment filed on June 15, 2015 filed as Exhibit 3.1 to the Company’s Form 10-Q for the quarterly period ended June 30, 2015 (Commission File No. 001-32886) filed August 5, 2015 and incorporated herein by reference.
3.2	Third Amended and Restated Bylaws of Continental Resources, Inc. filed as Exhibit 3.2 to the Company’s Form 10-K for the year ended December 31, 2017 (Commission File No. 001-32886) filed February 21, 2018 and incorporated herein by reference.
10.1*†	Summary of Non-Employee Director Compensation Approved as of May 16, 2018.
10.2***†	Form of Employee Restricted Stock Award Agreement under the Continental Resources, Inc. 2013 Long-Term Incentive Plan.
10.3***†	Form of Non-Employee Director Restricted Stock Award Agreement under the Continental Resources, Inc. 2013 Long-Term Incentive Plan.
31.1*	Certification of the Company’s Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (15 U.S.C. Section 7241).
31.2*	Certification of the Company’s Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (15 U.S.C. Section 7241).
32**	Certification of the Company’s Chief Executive Officer and Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350).
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 Label Linkbase Document
101.PRE**	XBRL Taxonomy Extension Presentation Linkbase Document

* Filed herewith

** Furnished herewith

*** Re-filed herewith pursuant to Item 10(d) of Regulation S-K.

† Management contracts or compensatory plans or arrangements filed pursuant to Item 601(b)(10)(iii) of Regulation S-K.

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SIGNATURE

Pursuant to the requirements 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.

		CONTINENTAL RESOURCES, INC.
Date:	August 7, 2018	By:	/s/ John D. Hart
			John D. Hart
			Sr. Vice President, Chief Financial Officer and Treasurer (Duly Authorized Officer and Principal Financial Officer)

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EX-10.1

Exhibit 10.1

Continental Resources, Inc.

Summary of Non-Employee Director Compensation

Approved as of May 16, 2018

Retainers/Fees

Non-employee directors of Continental Resources, Inc. (the “Company”) receive the following compensation:

• An annual cash retainer of $60,500 per year;

• The Lead Director is paid an annual retainer of $12,000;

• The chair of the Audit Committee is paid an annual retainer of $25,000 and Audit Committee members other than the chair of the committee are paid an annual retainer of $21,875;

• The chair of the Compensation Committee is paid an annual retainer of $15,000 and Compensation Committee members other than the chair of the committee are paid an annual retainer of $11,765; and

• The chair of the Nominating/Corporate Governance Committee is paid an annual retainer of $16,000 and Nominating/Corporate Governance Committee members other than the chair of the committee are paid an annual retainer of $10,765.

Harold Hamm who is a director and employee and a member of the Nominating/Corporate Governance Committee will not receive any of the retainers described above.

Equity-Based Compensation

Non-employee directors receive grants of restricted stock with vesting periods ranging from one to three years pursuant to the terms of the Continental Resources, Inc. 2013 Long-Term Incentive Plan (the “2013 Plan”). The number of shares granted is at the discretion of the Board of Directors. Currently, the targeted grant value for annual non-employee director restricted stock grants is $240,000. The Company’s Board of Directors has adopted a common stock ownership requirement for non-employee directors. Each non-employee director is expected to own shares of the Company’s common stock with a market value equal to at least five times the base annual retainer. Until the common stock ownership guideline is achieved, each non-employee director is expected to retain 100% of the shares received as a result of restricted shares granted under the 2013 Plan and/or the Continental Resources, Inc. 2005 Long-Term Incentive Plan (the predecessor to the 2013 Plan). Shares owned directly by, or held in trust for, the non-employee director or his or her immediate family members residing in the same household and unvested restricted shares are included in the calculation of market value.

EX-10.2

Exhibit 10.2

RESTRICTED STOCK AWARD AGREEMENT

CONTINENTAL RESOURCES, INC.

2013 LONG-TERM INCENTIVE PLAN

THIS RESTRICTED STOCK AWARD AGREEMENT (the “Award Agreement”), is entered into as of             (the “Date of Grant”) by and between             (the “Participant”) and CONTINENTAL RESOURCES, INC. (the “Company”):

WITNESSETH:

WHEREAS, the Participant is an employee of the Company, and it is important to the Company that the Participant be encouraged to remain in its employ; and

WHEREAS, in recognition of such facts, the Company desires to provide to the Participant an opportunity to acquire shares of the Common Stock of the Company, as hereinafter provided, pursuant to “Continental Resources, Inc. 2013 Long-Term Incentive Plan” (the “Plan”), a copy of which has been provided to the Participant; and

WHEREAS, any capitalized terms used but not defined herein have the same meanings given them in the Plan.

NOW, THEREFORE, in consideration of the mutual covenants hereinafter set forth and for good and valuable consideration, the Participant and the Company hereby agree as follows:

Section 1.Grant of Award. The Company hereby grants to the Participant effective as of the Date of Grant specified above, as a matter of separate inducement but not in lieu of any salary or other compensation for the Participant’s services for the Company, an award (the “Award”) of             (            ) shares of Common Stock (the “Restricted Shares”), under and subject to the terms and conditions of this Award Agreement and the Plan, which is incorporated herein by reference and made a part hereof for all purposes.

Section 2.Stock Held by Company; Ownership of Restricted Shares. The Company shall evidence the Restricted Shares in the manner that it deems appropriate. The Company may issue a certificate or certificates registered in the name of the Participant representing the total number of Restricted Shares represented by the Award and retain that certificate or those certificates until the restrictions on the Restricted Shares expire or the Restricted Shares are forfeited as described in this Award Agreement. All Restricted Shares under the Award held by the Company pursuant to this Award Agreement shall constitute issued and outstanding shares of Common Stock of the Company for all corporate purposes, and the Participant shall be entitled to all the rights of absolute ownership of the Restricted Shares, including the right to vote those shares and the right to receive all cash dividends thereon (subject to vesting restrictions as described in Section 3) provided that the right to receive such dividends shall terminate with respect to shares of Common Stock which are forfeited under this Award Agreement. If shares of Common Stock vest in the Participant in accordance with this Award Agreement, the Company shall, if requested by the Participant, deliver to the Participant a certificate representing such vested shares of Common Stock.

Section 3.Vesting of Award. If the Participant’s employment with the Company, a Subsidiary or an Affiliated Entity remains full-time and continuous at all times prior to any of the vesting dates specified below (the “Vesting Dates”), the restrictions on a number of the Restricted Shares granted pursuant to this Award Agreement will expire and such Restricted Shares will become transferable and nonforfeitable, on or after the applicable Vesting Date, on a cumulative basis, such number of Restricted Shares determined by multiplying the aggregate number of shares of Common Stock subject to the Award by the designated percentage set forth as follows:

Percent Vested	Vesting Date
%
%

Such vesting percentages shall also be applicable to any dividends that may become payable on the shares of Common Stock that are subject to this Award Agreement. If the Participant terminates employment prior to the applicable Vesting Date for any reason, the Restricted Shares for which the restrictions have not lapsed as of the date of termination (including any dividends payable thereon) shall be null and void and shall be forfeited to the Company, and neither the Participant nor any other person shall have any interest therein in any manner whatsoever, unless Participant’s vesting in the Award is accelerated pursuant to Section 6. Dividends, if any, that are payable with respect to the Restricted Shares under this Award Agreement shall be paid without interest to the Participant on the date of vesting of the associated Restricted Shares, and then only with respect to the percentage of such dividends as to which the Award was then vested, with the remaining portions of such dividends, if any, to be paid without interest to the Participant on the date the associated Restricted Shares respectively become vested.

Section 4.Restrictions; Forfeiture. The Restricted Shares are restricted in that they may not be sold, assigned, transferred, pledged or otherwise alienated or hypothecated in any way, shall not be assignable by operation of law and shall not be subject to execution, attachment, or similar process. Any attempted assignment, transfer, pledge, hypothecation or other disposition of the Restricted Shares contrary to the provisions hereof shall be null and void and without effect. The Restricted Shares are also restricted in the sense that they may be forfeited to the Company. The Participant hereby agrees that if the Restricted Shares are forfeited, as provided in Section 3, the Company shall have the right to deliver the Restricted Shares to the Company’s transfer agent for, at the Company’s election, cancellation or transfer to the Company.

Section 5.Employment. So long as the Participant shall continue to be a full-time and continuous employee of the Company, a Subsidiary or an Affiliated Entity, the Award shall not be affected by any change of duties or position. Nothing in the Plan or in this Award Agreement shall confer upon the Participant any right to continue in the employ of the Company, a Subsidiary or an Affiliated Entity, or interfere in any way with the right of the Company, a Subsidiary or an Affiliated Entity to terminate the Participant’s employment at any time. With respect to the Award, the Company may, in its sole discretion, determine that if the Participant is on leave of absence for any reason the Participant will be considered to still be in the employ of,

2

or providing services for, the Company (and, hence, as a result of such leave of absence, Restricted Shares for which the restrictions have not lapsed as of the date the leave of absence began will not be automatically forfeited to the Company while the Participant remains on leave of absence), provided that rights to the Restricted Shares during a leave of absence will be limited to only those rights actually earned or vested when the leave of absence began, meaning that no restrictions on any Restricted Shares granted pursuant to this Award will expire and no Restricted Shares will become transferable and nonforfeitable during any leave of absence, even if a Vesting Date would otherwise occur during such leave of absence, and upon the Participant’s return from leave of absence, the Company, in its sole discretion, may adjust the vesting schedule in Section 3 hereof to account for such leave of absence.

Section 6.Acceleration of Award Upon Change of Control. Upon the occurrence of a Change of Control, the Award shall become 100% vested and restrictions on all of the Restricted Shares granted pursuant to this Award will expire and such Restricted Shares will become transferable and nonforfeitable.

Section 7.Delivery of Stock. Promptly following the expiration of the restrictions on the Restricted Shares as contemplated in Section 3 or Section 6 of this Award Agreement, the Company shall cause to be issued and delivered to the Participant or the Participant’s designee a certificate or other evidence of the number of Restricted Shares as to which restrictions have lapsed, free of any restrictive legend relating to the lapsed restrictions, upon receipt by the Company of any tax withholding as may be requested pursuant to Section 9. The value of such Restricted Shares shall not bear any interest owing to the passage of time.

Section 8.Securities Law Restrictions. Notwithstanding any provision of this Award Agreement to the contrary, the Award shall be vested and Common Stock (including the Restricted Shares) issued only upon compliance with the Securities Act of 1933, as amended (the “Securities Act”), and any other applicable securities law, or pursuant to an exemption therefrom, and with the requirements of any stock exchange or market system upon which the Common Stock may then be listed. No Common Stock will be issued hereunder if such issuance would constitute a violation of any applicable federal, state, or foreign securities laws or other law or regulations or the requirements of any stock exchange or market system upon which the Common Stock may then be listed. In addition, Common Stock will not be issued hereunder unless (i) a registration statement under the Securities Act is at the time of issuance in effect with respect to the shares issued or (ii) in the opinion of legal counsel to the Company, the shares issued may be issued in accordance with the terms of an applicable exemption from the registration requirements of the Securities Act. The inability of the Company to obtain from any regulatory body having jurisdiction the authority, if any, deemed by the Company’s legal counsel to be necessary to the lawful issuance and sale of any shares subject to the Award will relieve the Company of any liability in respect of the failure to issue such shares as to which such requisite authority has not been obtained. If deemed necessary by the Company to comply with the Securities Act or any applicable laws or regulations relating to the sale of securities, the Participant, at the time of any issuance hereunder and as a condition imposed by the Company, shall take action to satisfy any qualifications that may be necessary or appropriate to evidence compliance with any applicable law or regulation and shall represent, warrant and agree that the shares of Common Stock subject to the Award are being purchased for investment and not with any present intention to resell the same and without a view to distribution, and the Participant shall, upon the request of the Company, execute and deliver to the Company an agreement to such effect. The Participant acknowledges that any stock certificate representing Common Stock purchased under such circumstances will be issued with a restricted securities legend.

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Section 9.Withholding of Taxes. The Company may make such provision as it may deem appropriate to satisfy the withholding of any applicable federal, state or local taxes that it determines it (or a Subsidiary or Affiliated Entity) may be obligated to withhold or pay in connection with the vesting of the Award or the disposition of shares of Common Stock acquired upon vesting of the Award. A Participant may pay the amount of taxes required by law upon the payment of an Award (i) in cash, (ii) by delivering to the Company shares of Common Stock having a Fair Market Value on the date of payment equal to the amount of such required withholding taxes, or (iii) by directing the Company to withhold from the shares of Common Stock to be delivered to the Participant upon payment of the Award shares of Common Stock having a Fair Market Value on the date of payment equal to the amount of such required withholding taxes. If the Participant elects to use the stock withholding option described in subparagraph (iii), the Participant must make the election at the time and in the manner the Company prescribes. The Committee, in its discretion, may deny the Participant’s request to satisfy the tax withholding obligations using a method described under subparagraph (ii) or (iii). In the event the Company determines that the aggregate Fair Market Value of the shares of Common Stock withheld as payment of any tax withholding obligation is insufficient to discharge that tax withholding obligation, then the Participant must pay to the Company, in cash, the amount of that deficiency immediately upon the Company’s request.

Section 10.Restrictions.

(a) Right to Repurchase. At any time that the Company is not a “reporting company” under Section 12 of the Exchange Act, the Company will have the right to repurchase (the “Repurchase Right”), upon Participant’s termination of employment for any reason, whether voluntary or involuntary, or by resignation, removal, death or disability or otherwise, all shares of Common Stock that are issued to Participant under this Award Agreement, that have become vested in accordance with Section 3 or 6 of this Award Agreement, and that are beneficially owned by the Participant as of the date the Company exercises the Repurchase Right. The Company’s right to repurchase shall remain in effect during the term of Participant’s employment by the Company and shall continue for a period of two years following termination of Participant’s employment by the Company. If the Company elects to purchase any Common Stock pursuant to this Section 10(a), it shall give written notice of its election to do so (the “Election Notice”) to the Participant. If the Company shall become a “reporting company” prior to giving an Election Notice, the Company’s Repurchase Right shall lapse. If the Company shall become a “reporting company” after giving an Election Notice and prior to the consummation of the repurchase which is the subject of such Election Notice, the Company’s Repurchase Right shall continue in full force and effect.

(b) Obligation to Repurchase. At any time that the Company is not a “reporting company” under Section 12 of the Exchange Act, the Participant, by written notice to the Company (a “Notice to Purchase”), may elect to require the Company to purchase from the Participant any and all shares of Common Stock, whether or not such shares have become vested in accordance with Section 3 or 6 of this Award Agreement, and that are beneficially owned by

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the Participant as of the date of such Notice to Purchase. If the Company shall become a “reporting company” after a Notice to Purchase is given and prior to the consummation of the repurchase which is the subject of such Notice to Purchase, the Company’s repurchase obligation shall continue in full force and effect.

(c) Procedure for Repurchase. The purchase price to be paid by the Company for the Common Stock to be repurchased pursuant to Section 10(a) or Section 10(b) above (the “Affected Stock”) shall be the Fair Market Value of the Affected Stock as of the last day of the calendar quarter next preceding the Election Notice or the Notice to Purchase, as the case may be. The purchase price shall be determined by the Company within forty-five (45) days next following the Election Notice or the Notice to Purchase, as the case may be. Within five (5) calendar days next following the determination of the purchase price, the Company shall provide to the Participant a written report reflecting the Company’s calculation of the purchase price in reasonable detail. The Participant shall have five (5) calendar days in which to deliver to the Company the Participant’s objection to the Company’s determination of the purchase price. Any such objection shall be in writing and shall state the basis for such objection. If no such objection is timely made, the Company’s determination of the purchase price shall be final. In the event of a timely objection, and within ten (10) days following delivery of such objection to the Company, the determination of the purchase price shall be submitted to a panel consisting of three persons, one appointed by the Company, one appointed by the Participant, and the third selected by the other two. The Company and the Participant shall provide written notice to each other of the name of the person appointed to the panel. If either the Company or the Participant fails to timely appoint its member of the panel, the other party may do so. The determination of the purchase price by a majority of members of the panel shall be final and binding on the parties. The closing of the Company’s purchase of the Affected Stock shall occur at the offices of the Company on a business day which is not more than seven (7) calendar days following the final determination of the purchase price. At the closing, the Participant shall deliver the Affected Stock by appropriate assignment against payment of the purchase price.

(d) Stockholders’ Agreements. The receipt of the vested shares of Common Stock after the applicable Vesting Date shall be conditioned upon Participant’s agreement to be bound by agreements and restrictions applicable to other shareholders of the Company.

(e) Restrictive Legend. Each certificate representing the Common Stock shall contain on its face, in addition to any other legend, the following legend in order to give notice of this restriction to any purchaser or transferee of Common Stock:

“THE SHARES OF COMMON STOCK OF CONTINENTAL RESOURCES, INC. (“COMPANY”) REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO RESTRICTIONS ON TRANSFER AND THE RIGHT OF THE COMPANY TO REPURCHASE THE COMMON STOCK IN ACCORDANCE WITH THE TERMS OF THAT CERTAIN RESTRICTED STOCK AWARD AGREEMENT (“AWARD AGREEMENT”) DATED             WHICH RELATES TO THE CONTINENTAL RESOURCES, INC. 2013 LONG-TERM INCENTIVE PLAN. CERTAIN TRANSFERS OF THE COMPANY COMMON STOCK MAY BE INVALIDATED IF SUCH TRANSFERS ARE NOT MADE IN ACCORDANCE WITH THE TERMS OF THE AWARD AGREEMENT. ANY PURCHASER OR

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TRANSFEREE OF THE SHARES OF COMPANY COMMON STOCK REPRESENTED BY THIS CERTIFICATE SHOULD OBTAIN A COPY OF THE AWARD AGREEMENT AND INSURE THAT THE PROPOSED PURCHASE OR TRANSFER DOES NOT VIOLATE THE AWARD AGREEMENT.”

Section 11.Notices. All notices or other communications relating to the Plan and this Award Agreement shall be in writing and shall be delivered personally or mailed (U.S. mail) and shall be deemed to be delivered (i) on the date on which actually received by the person to whom it is delivered personally, (ii) three business days following the date on which a properly addressed notice or communication is mailed via regular U.S. mail, or (iii) on the date on which receipt is acknowledged if sent via certified U.S. mail. Any notice by the Company to the Participant shall be sent to the Participant at the then current address as maintained by the Company or such other address as the Participant may advise the Company in writing. Any notice by the Participant to the Company shall be sent to the Secretary of the Company. Any person entitled to notice hereunder may waive such notice in writing.

Section 12.Furnish Information. The Participant agrees to furnish to the Company all information requested by the Company to enable it to comply with any reporting or other requirements imposed upon the Company by or under any applicable statute or regulation.

Section 13.Remedies. The parties to this Award Agreement shall be entitled to recover from each other reasonable attorneys’ fees incurred in connection with the successful enforcement of the terms and provisions of this Award Agreement whether by action to enforce specific performance or for damages for its breach or otherwise.

Section 14.No Liability for Good Faith Determinations. The Company and the members of the Board shall not be liable for any act, omission or determination taken or made in good faith with respect to this Award Agreement or the Restricted Shares granted hereunder.

Section 15.Execution of Receipts and Releases. Any payment of cash or any issuance or transfer of shares of Common Stock or other property to the Participant, or to the Participant’s legal representative, heir, legatee or distributee, in accordance with the provisions hereof, shall, to the extent thereof, be in full satisfaction of all claims of such persons hereunder. The Company may require the Participant or the Participant’s legal representative, heir, legatee or distributee, as a condition precedent to such payment or issuance, to execute a release and receipt therefor in such form as it shall determine.

Section 16.No Guarantee of Interests. The Board and the Company do not guarantee the Common Stock of the Company from loss or depreciation.

Section 17.Information Confidential. As partial consideration for the granting of the Award hereunder, the Participant hereby agrees to keep confidential all information and knowledge, except that which has been disclosed in any public filings required by law, that the Participant has relating to the terms and conditions of this Award Agreement; provided, however, that such information may be disclosed as required by law and may be given in confidence to the Participant’s spouse and tax and financial advisors. In the event any breach of this promise comes to the attention of the Company, it shall take into consideration that breach in determining whether to recommend the grant of any future similar award to the Participant.

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Section 18.Successors. This Award Agreement shall be binding upon the Participant, the Participant’s legal representatives, heirs, legatees and distributees, and upon the Company, its successors and assigns.

Section 19.Severability. If any provision of this Award Agreement is held to be illegal or invalid for any reason, the illegality or invalidity shall not affect the remaining provisions hereof, but such provision shall be fully severable and this Award Agreement shall be construed and enforced as if the illegal or invalid provision had never been included herein.

Section 20.Company Action. Any action required of the Company shall be by resolution of the Board or Committee or by a person or entity properly authorized to act by resolution of the Board or Committee.

Section 21.Headings. The titles and headings of sections are included for convenience of reference only and are not to be considered in construction of the provisions hereof.

Section 22.Governing Law. All questions arising with respect to the provisions of this Award Agreement shall be determined by application of the laws of Oklahoma, without giving any effect to any conflict of law provisions thereof, except to the extent Oklahoma state law is preempted by federal law. The obligation of the Company to sell and deliver Common Stock hereunder is subject to applicable laws and to the approval of any governmental authority required in connection with the authorization, issuance, sale or delivery of such Common Stock.

Section 23.Consent to Jurisdiction and Venue. The Participant hereby consents and agrees that state courts located in Oklahoma County, Oklahoma and the United States District Court for the Western District of Oklahoma each shall have personal jurisdiction and proper venue with respect to any dispute between the Participant and the Company arising in connection with the Award or this Award Agreement. In any dispute with the Company, the Participant will not raise, and the Participant hereby expressly waives, any objection or defense to any such jurisdiction as an inconvenient forum.

Section 24.Amendment. This Award Agreement may be amended by the Board or by the Committee at any time (i) if the Board or the Committee determines, in its sole discretion, that amendment is necessary or advisable in light of any addition to or change in any federal or state, tax or securities law or other law or regulation, which change occurs after the Date of Grant and by its terms applies to the Award, or (ii) other than in these circumstances described in subparagraph (i) or provided in the Plan, with the Participant’s consent.

Section 25.Acknowledgements. The Participant acknowledges and agrees that (i) the Participant is not relying upon any determination by the Company, its affiliates, or any of their respective employees, directors, officers, attorneys or agents (collectively, the “Company Parties”) of the Fair Market Value of the Common Stock on the Date of Grant, (ii) the Participant is not relying upon any written or oral statement or representation of the Company Parties regarding the tax effects associated with the Participant’s execution of this Award

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Agreement and the Participant’s receipt, holding and vesting of the Restricted Shares, and (iii) in deciding to enter into this Award Agreement, the Participant is relying on the Participant’s own judgment and the judgment of the professionals of the Participant’s choice with whom the Participant has consulted. The Participant hereby releases, acquits, and forever discharges the Company Parties from all actions, suits, debts, obligations, liabilities, claims, damages, losses, costs and expenses of any nature whatsoever, known or unknown, on account of, arising out of, or in any way related to the tax effects associated with the Participant’s execution of this Award Agreement and the Participant’s receipt or holding of the Restricted Shares. The Participant further understands and acknowledges that the Participant should consult with a tax advisor regarding the advisability of filing with the Internal Revenue Service an election under section 83(b) of the Code with respect to the Restricted Shares for which the restrictions have not lapsed. This election must be filed no later than 30 days after the Date of Grant set forth in this Award Agreement. This time period cannot be extended. The Participant acknowledges (a) that the Participant has been advised to consult with a tax advisor regarding the tax consequences of this award of the Restricted Shares and (b) that timely filing of a section 83(b) election is the Participant’s sole responsibility, even if the Participant requests the Company or its representative to file such election on the Participant’s behalf.

IN WITNESS WHEREOF, the parties have executed this Award Agreement as of the Date of Grant.

CONTINENTAL RESOURCES, INC., an

Oklahoma corporation

By:  

“PARTICIPANT”

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EX-10.3

Exhibit 10.3

RESTRICTED STOCK AWARD AGREEMENT

CONTINENTAL RESOURCES, INC.

2013 LONG-TERM INCENTIVE PLAN

THIS RESTRICTED STOCK AWARD AGREEMENT (the “Award Agreement”), is entered into as of             (the “Date of Grant”) by and between             (the “Participant”) and CONTINENTAL RESOURCES, INC. (the “Company”):

WITNESSETH:

WHEREAS, the Participant is a member of the board of directors (the “Board”) of the Company, and it is important to the Company that the Participant be encouraged to remain in its service; and

WHEREAS, in recognition of such facts, the Company desires to provide to the Participant an opportunity to acquire shares of the Common Stock of the Company, as hereinafter provided, pursuant to “Continental Resources, Inc. 2013 Long-Term Incentive Plan” (the “Plan”), a copy of which has been provided to the Participant; and

WHEREAS, any capitalized terms used but not defined herein have the same meanings given them in the Plan.

NOW, THEREFORE, in consideration of the mutual covenants hereinafter set forth and for good and valuable consideration, the Participant and the Company hereby agree as follows:

Section 1.Grant of Award. The Company hereby grants to the Participant effective as of the Date of Grant specified above, as a matter of separate inducement but not in lieu of any fees or other compensation for the Participant’s services for the Company, an award (the “Award”) of             (            ) shares of Common Stock (the “Restricted Shares”), under and subject to the terms and conditions of this Award Agreement and the Plan, which is incorporated herein by reference and made a part hereof for all purposes.

Section 2.Stock Held by Company; Ownership of Restricted Shares. The Company shall evidence the Restricted Shares in the manner that it deems appropriate. The Company may issue a certificate or certificates registered in the name of the Participant representing the total number of Restricted Shares represented by the Award and retain that certificate or those certificates until the restrictions on the Restricted Shares expire or the Restricted Shares are forfeited as described in this Award Agreement. All Restricted Shares under the Award held by the Company pursuant to this Award Agreement shall constitute issued and outstanding shares of Common Stock of the Company for all corporate purposes, and the Participant shall be entitled to all the rights of absolute ownership of the Restricted Shares, including the right to vote those shares and the right to receive all cash dividends thereon (subject to vesting restrictions as described in Section 3) provided that the right to receive such dividends shall terminate with respect to shares of Common Stock which are forfeited under this Award Agreement. If shares of Common Stock vest in the Participant in accordance with this Award Agreement, the Company shall, if requested by the Participant, deliver to the Participant a certificate representing such vested shares of Common Stock.

Section 3.Vesting of Award. If the Participant’s service as a member of the Board remains continuous at all times prior to any of the vesting dates specified below (the “Vesting Dates”), the restrictions on a number of the Restricted Shares granted pursuant to this Award Agreement will expire and such Restricted Shares will become transferable and nonforfeitable, on or after the applicable Vesting Date, on a cumulative basis, such number of Restricted Shares determined by multiplying the aggregate number of shares of Common Stock subject to the Award by the designated percentage set forth as follows:

Percent Vested	Vesting Date
%
%

Such vesting percentages shall also be applicable to any dividends that may become payable on the shares of Common Stock that are subject to this Award Agreement. If the Participant terminates service prior to the applicable Vesting Date for any reason, the Restricted Shares for which the restrictions have not lapsed as of the date of termination (including any dividends payable thereon) shall be null and void and shall be forfeited to the Company, and neither the Participant nor any other person shall have any interest therein in any manner whatsoever, unless Participant’s vesting in the Award is accelerated pursuant to Section 6. Dividends, if any, that are payable with respect to the Restricted Shares under this Award Agreement shall be paid without interest to the Participant on the date of vesting of the associated Restricted Shares, and then only with respect to the percentage of such dividends as to which the Award was then vested, with the remaining portions of such dividends, if any, to be paid without interest to the Participant on the date the associated Restricted Shares respectively become vested.

Section 4.Restrictions; Forfeiture. The Restricted Shares are restricted in that they may not be sold, assigned, transferred, pledged or otherwise alienated or hypothecated in any way, shall not be assignable by operation of law and shall not be subject to execution, attachment, or similar process. Any attempted assignment, transfer, pledge, hypothecation or other disposition of the Restricted Shares contrary to the provisions hereof shall be null and void and without effect. The Restricted Shares are also restricted in the sense that they may be forfeited to the Company. The Participant hereby agrees that if the Restricted Shares are forfeited, as provided in Section 3, the Company shall have the right to deliver the Restricted Shares to the Company’s transfer agent for, at the Company’s election, cancellation or transfer to the Company.

Section 5.Board Service. So long as the Participant shall continue to be a continuous member of the Board, the Award shall not be affected by any change of duties or position. Nothing in the Plan or in this Award Agreement shall confer upon the Participant any right to continue as a member of the Board, or interfere in any way with any right of the Company to terminate the Participant’s Board service at any time.

Section 6.Acceleration of Award Upon Change of Control. Upon the occurrence of a Change of Control, the Award shall become 100% vested and restrictions on all of the Restricted Shares granted pursuant to this Award will expire and such Restricted Shares will become transferable and nonforfeitable.

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Section 7.Delivery of Stock. Promptly following the expiration of the restrictions on the Restricted Shares as contemplated in Section 3 or Section 6 of this Award Agreement, the Company shall cause to be issued and delivered to the Participant or the Participant’s designee a certificate or other evidence of the number of Restricted Shares as to which restrictions have lapsed, free of any restrictive legend relating to the lapsed restrictions. The value of such Restricted Shares shall not bear any interest owing to the passage of time.

Section 8.Securities Law Restrictions. Notwithstanding any provision of this Award Agreement to the contrary, the Award shall be vested and Common Stock (including the Restricted Shares) issued only upon compliance with the Securities Act of 1933, as amended (the “Securities Act”), and any other applicable securities law, or pursuant to an exemption therefrom, and with the requirements of any stock exchange or market system upon which the Common Stock may then be listed. No Common Stock will be issued hereunder if such issuance would constitute a violation of any applicable federal, state, or foreign securities laws or other law or regulations or the requirements of any stock exchange or market system upon which the Common Stock may then be listed. In addition, Common Stock will not be issued hereunder unless (i) a registration statement under the Securities Act is at the time of issuance in effect with respect to the shares issued or (ii) in the opinion of legal counsel to the Company, the shares issued may be issued in accordance with the terms of an applicable exemption from the registration requirements of the Securities Act. The inability of the Company to obtain from any regulatory body having jurisdiction the authority, if any, deemed by the Company’s legal counsel to be necessary to the lawful issuance and sale of any shares subject to the Award will relieve the Company of any liability in respect of the failure to issue such shares as to which such requisite authority has not been obtained. If deemed necessary by the Company to comply with the Securities Act or any applicable laws or regulations relating to the sale of securities, the Participant, at the time of any issuance hereunder and as a condition imposed by the Company, shall take action to satisfy any qualifications that may be necessary or appropriate to evidence compliance with any applicable law or regulation and shall represent, warrant and agree that the shares of Common Stock subject to the Award are being purchased for investment and not with any present intention to resell the same and without a view to distribution, and the Participant shall, upon the request of the Company, execute and deliver to the Company an agreement to such effect. The Participant acknowledges that any stock certificate representing Common Stock purchased under such circumstances will be issued with a restricted securities legend.

Section 9.Restrictions.

(a) Right to Repurchase. At any time that the Company is not a “reporting company” under Section 12 of the Exchange Act, the Company will have the right to repurchase (the “Repurchase Right”), upon Participant’s termination of service as a member of the Board for any reason, whether voluntary or involuntary, or by resignation, removal, death or disability or otherwise, all shares of Common Stock that are issued to Participant under this Award Agreement, that have become vested in accordance with Section 3 or 6 of this Award Agreement and that are beneficially owned by the Participant as of the date the Company exercises the Repurchase Right. The Company’s right to repurchase shall remain in effect during the term of

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Participant’s service with the Company and shall continue for a period of two years following termination of Participant’s service with the Company. If the Company elects to purchase any Common Stock pursuant to this Section 9(a), it shall give written notice of its election to do so (the “Election Notice”) to the Participant. If the Company shall become a “reporting company” prior to giving an Election Notice, the Company’s Repurchase Right shall lapse. If the Company shall become a “reporting company” after giving an Election Notice and prior to the consummation of the repurchase which is the subject of such Election Notice, the Company’s Repurchase Right shall continue in full force and effect.

(b) Obligation to Repurchase. At any time that the Company is not a “reporting company” under Section 12 of the Exchange Act, the Participant, by written notice to the Company (a “Notice to Purchase”), may elect to require the Company to purchase from the Participant any and all shares of Common Stock, whether or not such shares have become vested in accordance with Section 3 or 6 of this Award Agreement, and that are beneficially owned by the Participant as of the date of such Notice to Purchase. If the Company shall become a “reporting company” after a Notice to Purchase is given and prior to the consummation of the repurchase which is the subject of such Notice to Purchase, the Company’s repurchase obligation shall continue in full force and effect.

(c) Procedure for Repurchase. The purchase price to be paid by the Company for the Common Stock to be repurchased pursuant to Section 9(a) or Section 9(b) above (the “Affected Stock”) shall be the Fair Market Value of the Affected Stock as of the last day of the calendar quarter next preceding the Election Notice or the Notice to Purchase, as the case may be. The purchase price shall be determined by the Company within forty-five (45) days next following the Election Notice or the Notice to Purchase, as the case may be. Within five (5) calendar days next following the determination of the purchase price, the Company shall provide to the Participant a written report reflecting the Company’s calculation of the purchase price in reasonable detail. The Participant shall have five (5) calendar days in which to deliver to the Company the Participant’s objection to the Company’s determination of the purchase price. Any such objection shall be in writing and shall state the basis for such objection. If no such objection is timely made, the Company’s determination of the purchase price shall be final. In the event of a timely objection, and within ten (10) days following delivery of such objection to the Company, the determination of the purchase price shall be submitted to a panel consisting of three persons, one appointed by the Company, one appointed by the Participant, and the third selected by the other two. The Company and the Participant shall provide written notice to each other of the name of the person appointed to the panel. If either the Company or the Participant fails to timely appoint its member of the panel, the other party may do so. The determination of the purchase price by a majority of members of the panel shall be final and binding on the parties. The closing of the Company’s purchase of the Affected Stock shall occur at the offices of the Company on a business day which is not more than seven (7) calendar days following the final determination of the purchase price. At the closing, the Participant shall deliver the Affected Stock by appropriate assignment against payment of the purchase price.

(d) Stockholders’ Agreements. The receipt of the vested shares of Common Stock after the applicable Vesting Date shall be conditioned upon Participant’s agreement to be bound by agreements and restrictions applicable to other shareholders of the Company.

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(e) Restrictive Legend. Each certificate representing the Common Stock shall contain on its face, in addition to any other legend, the following legend in order to give notice of this restriction to any purchaser or transferee of Common Stock:

“THE SHARES OF COMMON STOCK OF CONTINENTAL RESOURCES, INC. (“COMPANY”) REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO RESTRICTIONS ON TRANSFER AND THE RIGHT OF THE COMPANY TO REPURCHASE THE COMMON STOCK IN ACCORDANCE WITH THE TERMS OF THAT CERTAIN RESTRICTED STOCK AWARD AGREEMENT (“AWARD AGREEMENT”) DATED             WHICH RELATES TO THE CONTINENTAL RESOURCES, INC. 2013 LONG-TERM INCENTIVE PLAN. CERTAIN TRANSFERS OF THE COMPANY COMMON STOCK MAY BE INVALIDATED IF SUCH TRANSFERS ARE NOT MADE IN ACCORDANCE WITH THE TERMS OF THE AWARD AGREEMENT. ANY PURCHASER OR TRANSFEREE OF THE SHARES OF COMPANY COMMON STOCK REPRESENTED BY THIS CERTIFICATE SHOULD OBTAIN A COPY OF THE AWARD AGREEMENT AND INSURE THAT THE PROPOSED PURCHASE OR TRANSFER DOES NOT VIOLATE THE AWARD AGREEMENT.”

Section 10.Notices. All notices or other communications relating to the Plan and this Award Agreement shall be in writing and shall be delivered personally or mailed (U.S. mail) and shall be deemed to be delivered (i) on the date on which actually received by the person to whom it is delivered personally, (ii) three business days following the date on which a properly addressed notice or communication is mailed via regular U.S. mail, or (iii) on the date on which receipt is acknowledged if sent via certified U.S. mail. Any notice by the Company to the Participant shall be sent to the Participant at the then current address as maintained by the Company or such other address as the Participant may advise the Company in writing. Any notice by the Participant to the Company shall be sent to the Secretary of the Company. Any person entitled to notice hereunder may waive such notice in writing.

Section 11.Furnish Information. The Participant agrees to furnish to the Company all information requested by the Company to enable it to comply with any reporting or other requirements imposed upon the Company by or under any applicable statute or regulation.

Section 12.Remedies. The parties to this Award Agreement shall be entitled to recover from each other reasonable attorneys’ fees incurred in connection with the successful enforcement of the terms and provisions of this Award Agreement whether by action to enforce specific performance or for damages for its breach or otherwise.

Section 13.No Liability for Good Faith Determinations. The Company and the members of the Board shall not be liable for any act, omission or determination taken or made in good faith with respect to this Award Agreement or the Restricted Shares granted hereunder.

Section 14.Execution of Receipts and Releases. Any payment of cash or any issuance or transfer of shares of Common Stock or other property to the Participant, or to the Participant’s legal representative, heir, legatee or distributee, in accordance with the provisions hereof, shall, to the extent thereof, be in full satisfaction of all claims of such persons hereunder. The Company may require the Participant or the Participant’s legal representative, heir, legatee or distributee, as a condition precedent to such payment or issuance, to execute a release and receipt therefor in such form as it shall determine.

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Section 15.No Guarantee of Interests. The Board and the Company do not guarantee the Common Stock of the Company from loss or depreciation.

Section 16.Information Confidential. As partial consideration for the granting of the Award hereunder, the Participant hereby agrees to keep confidential all information and knowledge, except that which has been disclosed in any public filings required by law, that the Participant has relating to the terms and conditions of this Award Agreement; provided, however, that such information may be disclosed as required by law and may be given in confidence to the Participant’s spouse and tax and financial advisors. In the event any breach of this promise comes to the attention of the Company, it shall take into consideration that breach in determining whether to recommend the grant of any future similar award to the Participant.

Section 17.Successors. This Award Agreement shall be binding upon the Participant, the Participant’s legal representatives, heirs, legatees and distributees, and upon the Company, its successors and assigns.

Section 18.Severability. If any provision of this Award Agreement is held to be illegal or invalid for any reason, the illegality or invalidity shall not affect the remaining provisions hereof, but such provision shall be fully severable and this Award Agreement shall be construed and enforced as if the illegal or invalid provision had never been included herein.

Section 19.Company Action. Any action required of the Company shall be by resolution of the Board or Committee or by a person or entity properly authorized to act by resolution of the Board or Committee.

Section 20.Headings. The titles and headings of sections are included for convenience of reference only and are not to be considered in construction of the provisions hereof.

Section 21.Governing Law. All questions arising with respect to the provisions of this Award Agreement shall be determined by application of the laws of Oklahoma, without giving any effect to any conflict of law provisions thereof, except to the extent Oklahoma state law is preempted by federal law. The obligation of the Company to sell and deliver Common Stock hereunder is subject to applicable laws and to the approval of any governmental authority required in connection with the authorization, issuance, sale or delivery of such Common Stock.

Section 22.Consent to Jurisdiction and Venue. The Participant hereby consents and agrees that state courts located in Oklahoma County, Oklahoma and the United States District Court for the Western District of Oklahoma each shall have personal jurisdiction and proper venue with respect to any dispute between the Participant and the Company arising in connection with the Award or this Award Agreement. In any dispute with the Company, the Participant will not raise, and the Participant hereby expressly waives, any objection or defense to any such jurisdiction as an inconvenient forum.

6

Section 23.Amendment. This Award Agreement may be amended by the Board or by the Committee at any time (i) if the Board or the Committee determines, in its sole discretion, that amendment is necessary or advisable in light of any addition to or change in any federal or state, tax or securities law or other law or regulation, which change occurs after the Date of Grant and by its terms applies to the Award, or (ii) other than in these circumstances described in subparagraph (i) or provided in the Plan, with the Participant’s consent.

Section 24.Acknowledgements. The Participant acknowledges and agrees that (i) the Participant is not relying upon any determination by the Company, its affiliates, or any of their respective employees, directors, officers, attorneys or agents (collectively, the “Company Parties”) of the Fair Market Value of the Common Stock on the Date of Grant, (ii) the Participant is not relying upon any written or oral statement or representation of the Company Parties regarding the tax effects associated with the Participant’s execution of this Award Agreement and the Participant’s receipt, holding and vesting of the Restricted Shares, and (iii) in deciding to enter into this Award Agreement, the Participant is relying on the Participant’s own judgment and the judgment of the professionals of the Participant’s choice with whom the Participant has consulted. The Participant hereby releases, acquits, and forever discharges the Company Parties from all actions, suits, debts, obligations, liabilities, claims, damages, losses, costs and expenses of any nature whatsoever, known or unknown, on account of, arising out of, or in any way related to the tax effects associated with the Participant’s execution of this Award Agreement and the Participant’s receipt or holding of the Restricted Shares. The Participant further understands and acknowledges that the Participant should consult with a tax advisor regarding the advisability of filing with the Internal Revenue Service an election under section 83(b) of the Code with respect to the Restricted Shares for which the restrictions have not lapsed. This election must be filed no later than 30 days after the Date of Grant set forth in this Award Agreement. This time period cannot be extended. The Participant acknowledges (a) that the Participant has been advised to consult with a tax advisor regarding the tax consequences of this award of the Restricted Shares and (b) that timely filing of a section 83(b) election is the Participant’s sole responsibility, even if the Participant requests the Company or its representative to file such election on the Participant’s behalf.

IN WITNESS WHEREOF, the parties have executed this Award Agreement as of the Date of Grant.

CONTINENTAL RESOURCES, INC., an

Oklahoma corporation

By:  

“PARTICIPANT”

7

EX-31.1

Exhibit 31.1

Certification of the Company’s Chief Executive Officer Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002 (15 U.S.C. Section 7241)

I, Harold G. Hamm, certify that:

1. I have reviewed this report on Form 10-Q for the period ended June 30, 2018 of Continental Resources, Inc. (“Registrant”);

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 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 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:

(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: August 7, 2018

/s/ Harold G. Hamm

Harold G. Hamm

Chairman of the Board and

Chief Executive Officer

EX-31.2

Exhibit 31.2

Certification of the Company’s Chief Financial Officer Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002 (15 U.S.C. Section 7241)

I, John D. Hart, certify that:

1. I have reviewed this report on Form 10-Q for the period ended June 30, 2018 of Continental Resources, Inc. (“Registrant”);

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 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 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:

(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: August 7, 2018

/s/ John D. Hart

John D. Hart

Sr. Vice President, Chief Financial Officer and Treasurer

EX-32

Exhibit 32

Certification of the Company’s Chief Executive Officer and Chief Financial Officer Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

Pursuant to 18 U.S.C. Section 1350, the undersigned officers of Continental Resources, Inc. (the “Company”) hereby certify that the Company’s Report on Form 10-Q for the quarterly period ended June 30, 2018 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Harold G. Hamm	/s/ John D. Hart
Harold G. Hamm	John D. Hart
Chairman of the Board and Chief Executive Officer	Sr. Vice President, Chief Financial Officer and Treasurer
August 7, 2018	August 7, 2018

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 31, 2018
Document Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Trading Symbol	CLR
Entity Registrant Name	CONTINENTAL RESOURCES, INC
Entity Central Index Key	0000732834
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		376,037,498

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 129,989	$ 43,902
Receivables:
Crude oil and natural gas sales	671,004	671,665
Affiliated parties	58	63
Joint interest and other, net	506,301	426,585
Derivative assets	203	2,603
Inventories	115,310	97,406
Prepaid expenses and other	18,424	9,501
Total current assets	1,441,289	1,251,725
Net property and equipment, based on successful efforts method of accounting	13,339,571	12,933,789
Other noncurrent assets	17,620	14,137
Total assets	14,798,480	14,199,651
Current liabilities:
Accounts payable trade	811,965	692,908
Revenues and royalties payable	380,651	374,831
Payables to affiliated parties	237	143
Accrued liabilities and other	280,199	260,074
Derivative liabilities	9,065	0
Current portion of long-term debt	2,322	2,286
Total current liabilities	1,484,439	1,330,242
Long-term debt, net of current portion	6,164,221	6,351,405
Other noncurrent liabilities:
Deferred income tax liabilities, net	1,406,326	1,259,558
Asset retirement obligations, net of current portion	117,924	111,794
Other noncurrent liabilities	12,082	15,449
Total other noncurrent liabilities	1,536,332	1,386,801
Commitments and contingencies (Note 8)
Shareholders’ equity:
Preferred stock, $0.01 par value; 25,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.01 par value; 1,000,000,000 shares authorized; 376,030,797 shares issued and outstanding at June 30, 2018; 375,219,769 shares issued and outstanding at December 31, 2017	3,760	3,752
Additional paid-in capital	1,415,175	1,409,326
Accumulated other comprehensive income	325	307
Retained earnings	4,194,228	3,717,818
Total shareholders’ equity	5,613,488	5,131,203
Total liabilities and shareholders’ equity	$ 14,798,480	$ 14,199,651

XML

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common Stock, Shares, Issued	376,030,797	375,219,769
Common Stock, Shares, Outstanding	376,030,797	375,219,769

XML

Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Crude oil and natural gas sales	$ 1,137,528	$ 626,548	$ 2,251,380	$ 1,260,398
Gain (loss) on natural gas derivatives, net	(12,685)	28,022	(2,511)	74,880
Crude oil and natural gas service operations	12,270	6,916	29,272	11,636
Total revenues	1,137,113	661,486	2,278,141	1,346,914
Operating costs and expenses:
Production expenses	90,171	82,474	183,133	155,328
Production taxes	83,595	41,965	164,175	83,198
Transportation expenses	47,254	0	96,551	0
Exploration expenses	303	3,204	2,023	8,202
Crude oil and natural gas service operations	7,688	4,478	12,271	7,315
Depreciation, depletion, amortization and accretion	447,200	395,770	901,578	777,926
Property impairments	29,162	123,316	62,946	174,689
General and administrative expenses	47,174	39,186	90,217	86,407
Net (gain) loss on sale of assets and other	(6,710)	134	(6,751)	5,669
Total operating costs and expenses	745,837	690,527	1,506,143	1,298,734
Income (loss) from operations	391,276	(29,041)	771,998	48,180
Other income (expense):
Interest expense	(74,288)	(72,744)	(150,182)	(143,916)
Other	708	373	1,362	815
Total other income (expense)	(73,580)	(72,371)	(148,820)	(143,101)
Income (loss) before income taxes	317,696	(101,412)	623,178	(94,921)
(Provision) benefit for income taxes	(75,232)	37,855	(146,768)	31,833
Net income (loss)	242,464	(63,557)	476,410	(63,088)
Foreign currency translation adjustments	16	189	18	327
Total other comprehensive income, net of tax	16	189	18	327
Comprehensive income (loss)	$ 242,480	$ (63,368)	$ 476,428	$ (62,761)
Basic net income per share (in dollars per share)	$ 0.65	$ (0.17)	$ 1.28	$ (0.17)
Diluted net income per share (in dollars per share)	$ 0.65	$ (0.17)	$ 1.27	$ (0.17)

XML

Condensed Consolidated Statements of Shareholders Equity - 6 months ended Jun. 30, 2018 - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]
Balance at Dec. 31, 2017	$ 5,131,203	$ 3,752	$ 1,409,326	$ 307	$ 3,717,818
Balance, shares at Dec. 31, 2017	375,219,769	375,219,769
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 476,410				476,410
Other comprehensive income, net of tax (unaudited)	18			18
Stock-based compensation (unaudited)	21,465		21,465
Restricted stock:
Granted (unaudited)	$ 13	$ 13
Granted (unaudited), shares	1,277,491	1,277,491
Repurchased and canceled (unaudited)	$ (15,619)	$ (3)	(15,616)
Repurchased and canceled (unaudited), shares	(287,506)	(287,506)
Forfeited (unaudited), shares	(178,957)	(178,957)
Forfeitures (unaudited)	$ (2)	$ (2)
Balance at Jun. 30, 2018	$ 5,613,488	$ 3,760	$ 1,415,175	$ 325	$ 4,194,228
Balance, shares at Jun. 30, 2018	376,030,797	376,030,797

XML

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities
Net income (loss)	$ 476,410	$ (63,088)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, Depletion, Amortization and Accretion	902,217	774,810
Property impairments	62,946	174,689
Non-cash (gain) loss on derivatives, net	11,465	(68,420)
Stock-based compensation	21,478	20,571
Provision (benefit) for deferred income taxes	146,768	(31,834)
Dry hole costs	1	157
(Gain) loss on sale of assets, net	(6,751)	2,859
Other, net	7,159	5,089
Changes in assets and liabilities:
Accounts receivable	(79,043)	(19,347)
Inventories	(17,904)	14,984
Other current assets	(8,138)	(2,225)
Accounts payable trade	103,710	105,441
Revenues and royalties payable	5,857	21,105
Accrued liabilities and other	17,550	(17,968)
Other noncurrent assets and liabilities	(3,732)	(251)
Net cash provided by operating activities	1,639,993	916,572
Cash flows from investing activities
Exploration and development	(1,334,681)	(877,115)
Purchase of producing crude oil and natural gas properties	(24,097)	(812)
Purchase of other property and equipment	(12,205)	(9,372)
Proceeds from sale of assets	27,380	7,979
Net cash used in investing activities	(1,343,603)	(879,320)
Cash flows from financing activities
Credit facility borrowings	803,000	540,000
Repayment of credit facility	(991,000)	(565,000)
Repayment of other debt	(1,134)	(1,099)
Debt issuance costs	(5,524)	0
Repurchase of restricted stock for tax withholdings	(15,619)	(10,620)
Net cash used in financing activities	(210,277)	(36,719)
Effect of Exchange Rate on Cash and Cash Equivalents	(26)	14
Net change in cash and cash equivalents	86,087	547
Cash and cash equivalents at beginning of period	43,902	16,643
Cash and cash equivalents at end of period	$ 129,989	$ 17,190

XML

Organization and Nature of Business

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Nature of Business

Organization and Nature of Business

Continental Resources, Inc. (the “Company”) was originally formed in 1967 and is incorporated under the laws of the State of Oklahoma. The Company's principal business is crude oil and natural gas exploration, development and production with properties primarily located in the North, South, and East regions of the United States. The North region consists of properties north of Kansas and west of the Mississippi River and includes North Dakota Bakken, Montana Bakken and the Red River units. The South region includes all properties south of Nebraska and west of the Mississippi River including various plays in the SCOOP and STACK areas of Oklahoma. The East region is primarily comprised of undeveloped leasehold acreage east of the Mississippi River with no significant drilling or production operations.

A substantial portion of the Company’s operations are located in the North region, with that region comprising 59% of the Company’s crude oil and natural gas production and 74% of its crude oil and natural gas revenues for the six months ended June 30, 2018. The Company's principal producing properties in the North region are located in the Bakken field of North Dakota and Montana. In recent years, the Company has significantly expanded its operations in the South region with its increased activity in the SCOOP and STACK plays. The South region comprised 41% of the Company's crude oil and natural gas production and 26% of its crude oil and natural gas revenues for the six months ended June 30, 2018.

For the six months ended June 30, 2018, crude oil accounted for 56% of the Company’s total production and 82% of its crude oil and natural gas revenues.

XML

Basis of Presentation and Significant Accounting Policies

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Basis of Presentation and Significant Accounting Policies

Basis of Presentation and Significant Accounting Policies

Basis of presentation

The condensed consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are 100% owned, after all significant intercompany accounts and transactions have been eliminated upon consolidation.

This report has been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) applicable to interim financial information. Because this is an interim period filing presented using a condensed format, it does not include all disclosures required by accounting principles generally accepted in the United States (“U.S. GAAP”), although the Company believes the disclosures are adequate to make the information not misleading. You should read this Quarterly Report on Form 10-Q (“Form 10-Q”) together with the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 (“2017 Form 10-K”), which includes a summary of the Company’s significant accounting policies and other disclosures.

The condensed consolidated financial statements as of June 30, 2018 and for the three and six month periods ended June 30, 2018 and 2017 are unaudited. The condensed consolidated balance sheet as of December 31, 2017 was derived from the audited balance sheet included in the 2017 Form 10-K. The Company has evaluated events or transactions through the date this report on Form 10-Q was filed with the SEC in conjunction with its preparation of these condensed consolidated financial statements.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure and estimation of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results may differ from those estimates. The most significant estimates and assumptions impacting reported results are estimates of the Company’s crude oil and natural gas reserves, which are used to compute depreciation, depletion, amortization and impairment of proved crude oil and natural gas properties. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) necessary for a fair presentation in accordance with U.S. GAAP have been included in these unaudited interim condensed consolidated financial statements. The results of operations for any interim period are not necessarily indicative of the results of operations that may be expected for any other interim period or for an entire year.

Earnings per share

Basic net income (loss) per share is computed by dividing net income (loss) by the weighted-average number of shares outstanding for the period. In periods where the Company has net income, diluted earnings per share reflects the potential dilution of non-vested restricted stock awards, which are calculated using the treasury stock method. The following table presents the calculation of basic and diluted weighted average shares outstanding and net income (loss) per share for the three and six months ended June 30, 2018 and 2017.

	Three months ended June 30,					Six months ended June 30,
In thousands, except per share data	2018		2017			2018		2017
Net income (loss) (numerator)	$	242,464	$	(63,557	)	$	476,410	$	(63,088	)
Weighted average shares (denominator):
Weighted average shares - basic	371,921		371,111			371,733		370,972
Non-vested restricted stock (1)	2,584		—			2,850		—
Weighted average shares - diluted	374,505		371,111			374,583		370,972
Net income (loss) per share:
Basic	$	0.65	$	(0.17	)	$	1.28	$	(0.17	)
Diluted	$	0.65	$	(0.17	)	$	1.27	$	(0.17	)

(1) For the three and six months ended June 30, 2017, the Company had a net loss and therefore the potential dilutive effect of approximately 1,933,200 and 2,546,200 weighted average non-vested restricted shares, respectively, were not included in the calculation of diluted net loss per share because to do so would have been anti-dilutive to the computations for those periods.

Inventories

Inventory is comprised of crude oil held in storage or as line fill in pipelines, pipeline imbalances, and tubular goods and equipment to be used in the Company's exploration and development activities. Crude oil inventories are valued at the lower of cost or market primarily using the first-in, first-out inventory method. Tubular goods and equipment are valued primarily using a weighted average cost method applied to specific classes of inventory items.

The components of inventory as of June 30, 2018 and December 31, 2017 consisted of the following:

In thousands	June 30, 2018		December 31, 2017
Tubular goods and equipment	$	18,722	$	14,946
Crude oil	96,588		82,460
Total	$	115,310	$	97,406

Adoption of new accounting pronouncements

Revenue recognition and presentation – In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes nearly all previously existing revenue recognition guidance under U.S. GAAP. Subsequently, the FASB issued additional guidance to assist entities with implementation efforts, including the issuance of ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net). This new guidance became effective for reporting periods beginning after December 15, 2017. The Company adopted the new revenue recognition and presentation guidance on January 1, 2018 as required. See Note 4. Revenues for discussion of the adoption impact and the applicable disclosures required by the new guidance.

New accounting pronouncements not yet adopted

Leases – In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires companies to recognize a right of use asset and related liability on the balance sheet for the rights and obligations arising from leases with durations greater than 12 months. The standard is effective for interim and annual reporting periods beginning after December 15, 2018. The Company plans to adopt the new standard using the simplified transition method prescribed by ASU 2018-11, Leases (Topic 842): Targeted Improvements, whereby the Company will initially apply the new standard as of the January 1, 2019 adoption date and will recognize a cumulative-effect adjustment to the opening balance of retained earnings, if any, upon adoption in lieu of retrospectively applying the new standard to pre-adoption periods.

The Company continues to evaluate the impact of ASU 2016-02 on its financial statements, accounting policies and internal controls and is in the process of implementing systems and processes to capture, classify, and account for leases within the scope of the new guidance and to comply with the related disclosure requirements. Interpretations and application of the new guidance continue to evolve and are being monitored for applicability and impact on the Company.

Based on an initial review of the new guidance and the Company’s current commitments, the Company anticipates it will be required to recognize lease assets and liabilities related to drilling rig commitments, certain equipment rentals and leases, certain surface use agreements, and potentially other arrangements. The Company does not believe any of its firm transportation agreements will qualify as leases, but continues to evaluate such arrangements.

Based on commitments in place as of June 30, 2018, the Company currently estimates its lease assets and liabilities to be recognized under ASU 2016-02 will total approximately $100 million, the majority of which will be comprised of future cash flows associated with drilling rig commitments, which are further discussed in Note 8. Commitments and Contingencies–Drilling commitments. This estimate may be subsequently revised based on unforeseen changes in the nature, timing, and extent of the Company's contractual arrangements from period to period, finalization of the Company's evaluation of its firm transportation agreements, or due to changes in the Company's interpretation or application of the new guidance.

Credit losses – In June 2016, the FASB issued ASU 2016-13, Financial Instruments–Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This standard changes how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. The standard will replace the currently required incurred loss approach with an expected loss model for instruments measured at amortized cost. The standard is effective for interim and annual periods beginning after December 15, 2019 and shall be applied using a modified retrospective approach resulting in a cumulative effect adjustment to retained earnings upon adoption. The Company continues to evaluate the new standard and is unable to estimate its financial statement impact at this time; however, the impact is not expected to be material. Historically, the Company's credit losses on crude oil and natural gas sales receivables and joint interest receivables have been immaterial.

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Supplemental Cash Flow Information

6 Months Ended

Jun. 30, 2018

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

Supplemental Cash Flow Information

The following table discloses supplemental cash flow information about cash paid for interest and income tax payments and refunds. Also disclosed is information about investing activities that affects recognized assets and liabilities but does not result in cash receipts or payments.

	Six months ended June 30,
In thousands	2018		2017
Supplemental cash flow information:
Cash paid for interest	$	122,940	$	138,346
Cash paid for income taxes	—		2
Cash received for income tax refunds	5		148
Non-cash investing activities:
Asset retirement obligation additions and revisions, net	3,562		3,771

As of June 30, 2018 and December 31, 2017, the Company had $317.5 million and $302.8 million, respectively, of accrued capital expenditures included in “Net property and equipment” and “Accounts payable trade” in the condensed consolidated balance sheets.

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Revenues (Notes)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer [Text Block]

Revenues

Adoption of new revenue recognition and disclosure guidance

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which generally requires an entity to identify performance obligations in its contracts, estimate the amount of consideration to be received, allocate the consideration to each separate performance obligation, and recognize revenue as obligations are satisfied. Additionally, the standard requires expanded disclosures related to revenue recognition.

Subsequent to the issuance of ASU 2014-09, the FASB issued additional guidance to assist entities with implementation efforts, including the issuance of ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), pertaining to the presentation of revenues on a gross basis (revenues presented separately from associated expenses) versus a net basis. This guidance requires an entity to record revenue on a gross basis if it controls a promised good or service before transferring it to a customer, whereas an entity records revenue on a net basis if its role is to arrange for another entity to provide the goods or services to a customer. Applying the guidance in ASU 2016-08 requires significant judgment in determining the point in time when control of products transfers to customers.

The Company adopted the new revenue recognition and presentation guidance on January 1, 2018 using a modified retrospective transition approach to all applicable contracts at the date of initial application, whereby the standard has been applied for periods commencing after December 31, 2017 and prior period results have not been adjusted to conform to current presentation. Adoption of the new guidance had no cumulative effect impact on the Company's retained earnings at January 1, 2018.

The new guidance does not have a material impact on the timing of the Company’s revenue recognition or its financial position, results of operations, net income, or cash flows, but does impact the Company's presentation of revenues and expenses under the gross-versus-net presentation guidance in ASU 2016-08. In years prior to 2018, the Company generally presented its revenues net of costs incurred to transport its production to market. Under the new guidance, revenues and transportation expenses associated with production originating from the Company’s operated properties are now reported on a gross basis as further discussed below. The changes from net to gross presentation resulted in an increase in revenues and a corresponding increase in separately reported transportation expenses, with no net effect on the Company’s results of operations, net income, or cash flows for the three and six months ended June 30, 2018.

The following table reflects the change in presentation of revenues and applicable expenses on the Company's 2018 results under the new and previous guidance.

	Three months ended June 30, 2018								Six months ended June 30, 2018
In thousands	New Standard			Prior Presentation			Change		New Standard			Prior Presentation			Change
Revenues:
Crude oil and natural gas sales	$	1,137,528		$	1,090,274		$	47,254	$	2,251,380		$	2,154,829		$	96,551
Loss on natural gas derivatives, net	(12,685		)	(12,685		)	—		(2,511		)	(2,511		)	—
Crude oil and natural gas service operations	12,270			12,270			—		29,272			29,272			—
Total revenues	$	1,137,113		$	1,089,859		$	47,254	$	2,278,141		$	2,181,590		$	96,551
Operating costs and expenses:
Transportation expenses	$	47,254		$	—		$	47,254	$	96,551		$	—		$	96,551
Net income	$	242,464		$	242,464		$	—	$	476,410		$	476,410		$	—

Revenue from contracts with customers

Below is a discussion of the nature, timing, and presentation of revenues arising from the Company's major revenue-generating arrangements.

Operated crude oil revenues – The Company pays third parties to transport the majority of its operated crude oil production from lease locations to downstream market centers, at which time the Company's customers take title and custody of the product in exchange for prices based on the particular market where the product was delivered. Operated crude oil revenues are recognized during the month in which control transfers to the customer and it is probable the Company will collect the consideration it is entitled to receive. Crude oil sales proceeds from operated properties are generally received by the Company within one month after the month in which a sale has occurred. Operated crude oil revenues and transportation expenses are reported on a gross basis, as the Company controls the operated production prior to its transfer to customers. Transportation expenses associated with the Company's operated crude oil production totaled $40.2 million and $80.6 million for the three and six months ended June 30, 2018, respectively.

Operated natural gas revenues – The Company sells the majority of its operated natural gas production to midstream customers at its lease locations under multi-year term contracts based on market prices in the field where the sales occur. Under these arrangements, the midstream customers obtain control of the unprocessed gas stream at the lease location and the Company's revenues from each sale are determined using contractually agreed pricing formulas which contain multiple components, including the volume and Btu content of the natural gas sold, the midstream customer's proceeds from the sale of residue gas and natural gas liquids ("NGLs") at secondary downstream markets, and contractual pricing adjustments reflecting the midstream customer's estimated recoupment of its investment over time. Such revenues are recognized net of pricing adjustments applied by the midstream customer during the month in which control transfers to the customer at the delivery point and it is probable the Company will collect the consideration it is entitled to receive. Natural gas sales proceeds from operated properties are generally received by the Company within one month after the month in which a sale has occurred.

Under certain arrangements, the Company may elect to take a volume of processed residue gas and/or NGLs in-kind at the tailgate of the midstream customer's processing plant in lieu of a monetary settlement based on the customer's proceeds for sale of those processed products. When the Company elects to do so, it pays third parties to transport the processed products which it took in-kind to downstream delivery points, where it then sells the products to customers at prices applicable to those downstream markets. In such situations, operated revenues are recognized during the month in which control transfers to the customer at the delivery point and it is probable the Company will collect the consideration it is entitled to receive. Operated sales proceeds are generally received by the Company within one month after the month in which a sale has occurred. In these scenarios, the Company's revenues include the pricing adjustments applied by the midstream processing entity according to the applicable contractual pricing formula, but exclude the transportation expenses the Company incurs to transport the processed products to downstream customers. Transportation expenses associated with these arrangements totaled $7.0 million and $15.9 million for the three and six months ended June 30, 2018, respectively, comprised entirely of costs to transport processed residue gas.

Non-operated crude oil and natural gas revenues – The Company's proportionate share of production from non-operated properties is marketed at the discretion of the operators. For non-operated properties, the Company receives a net payment from the operator representing its proportionate share of sales proceeds which is net of costs incurred by the operator, if any. Such non-operated revenues are recognized at the net amount of proceeds to be received by the Company during the month in which production occurs and it is probable the Company will collect the consideration it is entitled to receive. Proceeds are generally received by the Company within two to three months after the month in which production occurs.

Natural gas derivative revenues – See Note 5. Derivative Instruments for discussion of the Company's accounting for its derivative instruments.

Revenues from service operations – Revenues from the Company's crude oil and natural gas service operations consist primarily of revenues associated with water gathering, recycling, and disposal activities and the treatment and sale of crude oil reclaimed from waste products. Revenues associated with such activities, which are derived using market-based rates or rates commensurate with industry guidelines, are recognized during the month in which services are performed, the Company has an unconditional right to receive payment, and collectability is probable. Payment is generally received by the Company within one month after the month in which services are provided.

Disaggregation of crude oil and natural gas revenues

The following table presents the disaggregation of the Company's crude oil and natural gas revenues for the three and six months ended June 30, 2018.

	Three months ended June 30, 2018						Six months ended June 30, 2018
In thousands	North Region		South Region		Total		North Region		South Region		Total
Crude oil revenues:
Operated properties	$	587,582	$	145,603	$	733,185	$	1,156,794	$	284,056	$	1,440,850
Non-operated properties	196,301		17,398		213,699		379,188		33,127		412,315
Total crude oil revenues	783,883		163,001		946,884		1,535,982		317,183		1,853,165
Natural gas revenues:
Operated properties	41,425		121,188		162,613		93,245		248,442		341,687
Non-operated properties	13,982		14,049		28,031		27,661		28,867		56,528
Total natural gas revenues	55,407		135,237		190,644		120,906		277,309		398,215
Crude oil and natural gas sales	$	839,290	$	298,238	$	1,137,528	$	1,656,888	$	594,492	$	2,251,380
Timing of revenue recognition
Goods transferred at a point in time	$	839,290	$	298,238	$	1,137,528	$	1,656,888	$	594,492	$	2,251,380
Goods transferred over time	—		—		—		—		—		—
	$	839,290	$	298,238	$	1,137,528	$	1,656,888	$	594,492	$	2,251,380

Performance obligations

The Company satisfies the performance obligations under its crude oil and natural gas sales contracts upon delivery of its production and related transfer of control to customers. Upon delivery of production, the Company has a right to receive consideration from its customers in amounts that correspond with the value of the production transferred.

All of the Company's outstanding crude oil sales contracts at June 30, 2018 are short-term in nature with contract terms of less than one year. For such contracts, the Company has utilized the practical expedient in Accounting Standards Codification ("ASC") 606-10-50-14 exempting the Company from disclosure of the transaction price allocated to remaining performance obligations, if any, if the performance obligation is part of a contract that has an original expected duration of one year or less.

The majority of the Company's operated natural gas production is sold at lease locations to midstream customers under multi-year term contracts. For such contracts having a term greater than one year, the Company has utilized the practical expedient in ASC 606-10-50-14A which indicates an entity is not required to disclose the transaction price allocated to remaining performance obligations, if any, if variable consideration is allocated entirely to a wholly unsatisfied performance obligation. Under our sales contracts, whether for crude oil or natural gas, each unit of production delivered to a customer represents a separate performance obligation; therefore, future volumes to be delivered are wholly unsatisfied at period-end and disclosure of the transaction price allocated to remaining performance obligations is not applicable.

Contract balances

Under the Company’s crude oil and natural gas sales contracts or activities that give rise to service revenues, the Company recognizes revenue after its performance obligations have been satisfied, at which point the Company has an unconditional right to receive payment. Accordingly, the Company’s commodity sales contracts and service activities generally do not give rise to contract assets or contract liabilities under ASC Topic 606. Instead, the Company's unconditional rights to receive consideration are presented as a receivable within "Receivables–Crude oil and natural gas sales" or "Receivables–Joint interest and other, net", as applicable, in its condensed consolidated balance sheets.

Revenues from previously satisfied performance obligations

To record revenues for commodity sales, at the end of each month the Company estimates the amount of production delivered and sold to customers and the prices to be received for such sales. Differences between estimated revenues and actual amounts received for all prior months are recorded in the month payment is received from the customer and are reflected in the financial statements within the caption "Crude oil and natural gas sales". Revenues recognized during the three and six months ended June 30, 2018 related to performance obligations satisfied in prior reporting periods were not material.

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Derivative Instruments

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

Derivative Instruments

Natural gas derivatives

From time to time the Company has entered into natural gas swap and collar derivative contracts to economically hedge against the variability in cash flows associated with future sales of natural gas production. While the use of these derivative instruments limits the downside risk of adverse price movements, their use also limits future revenues from upward price movements.

The Company recognizes its natural gas derivative instruments on the balance sheet as either assets or liabilities measured at fair value. The Company has not designated its natural gas derivatives as hedges for accounting purposes and, as a result, marks such derivative instruments to fair value and recognizes the changes in fair value in the unaudited condensed consolidated statements of comprehensive income (loss) under the caption “Gain (loss) on natural gas derivatives, net”.

The Company's natural gas derivative contracts are settled based upon reported NYMEX Henry Hub settlement prices. The estimated fair value of derivatives is based upon various factors, including commodity exchange prices, over-the-counter quotations and, in the case of collars, volatility, the risk-free interest rate, and the time to expiration. The calculation of the fair value of collars requires the use of an option-pricing model. See Note 6. Fair Value Measurements.

    With respect to a natural gas fixed price swap contract, the counterparty is required to make a payment to the Company if the settlement price for any settlement period is less than the swap price, and the Company is required to make a payment to the counterparty if the settlement price for any settlement period is greater than the swap price. For a natural gas collar contract, the counterparty is required to make a payment to the Company if the settlement price for any settlement period is below the floor price, and the Company is required to make a payment to the counterparty if the settlement price for any settlement period is above the ceiling price. Neither party is required to make a payment to the other party if the settlement price for any settlement period is between the floor price and the ceiling price.

At June 30, 2018 the Company had outstanding natural gas derivative contracts as set forth in the table below. The volumes reflected below represent an aggregation of multiple derivative contracts having similar remaining durations expected to be realized ratably over the remainder of 2018. At June 30, 2018 the Company had no outstanding crude oil derivative contracts.

		Swaps Weighted Average Price
Period and Type of Contract	MMBtus
July 2018 - December 2018
Swaps - Henry Hub	115,920,000	$	2.88

Natural gas derivative gains and losses

Cash receipts and payments in the following table reflect the gain or loss on derivative contracts which matured during the period, calculated as the difference between the contract price and the market settlement price of matured contracts. Non-cash gains and losses below represent the change in fair value of derivative instruments which continue to be held at period end and the reversal of previously recognized non-cash gains or losses on derivative contracts that matured during the period.

	Three months ended June 30,						Six months ended June 30,
In thousands	2018			2017			2018			2017
Cash received (paid) on derivatives:
Natural gas fixed price swaps	$	4,758		$	6,709		$	8,954		$	12,187
Natural gas collars	—			(3,050		)	—			(9,456		)
Cash received (paid) on derivatives, net	4,758			3,659			8,954			2,731
Non-cash gain (loss) on derivatives:
Natural gas fixed price swaps	(17,443		)	12,520			(11,465		)	35,416
Natural gas collars	—			11,843			—			36,733
Non-cash gain (loss) on derivatives, net	(17,443		)	24,363			(11,465		)	72,149
Gain (loss) on natural gas derivatives, net	$	(12,685	)	$	28,022		$	(2,511	)	$	74,880

Diesel fuel derivatives

The Company previously entered into diesel fuel swap derivative contracts, all of which matured on or before December 31, 2017, to economically hedge against the variability in cash flows associated with purchases of diesel fuel for use in drilling activities. With respect to the diesel fuel swap contracts, the counterparty was required to make a payment to the Company if the settlement price for any settlement period was greater than the swap price, and the Company was required to make a payment to the counterparty if the settlement price for any settlement period was less than the swap price. The diesel fuel swap contracts were settled based upon reported NYMEX settlement prices for New York Harbor ultra-low sulfur diesel fuel.

The Company recognized its diesel fuel derivatives on the balance sheet as either assets or liabilities measured at fair value. The estimated fair value was based upon various factors, including commodity exchange prices, over-the-counter quotations, the risk-free interest rate, and time to expiration. The Company did not designate its diesel fuel derivatives as hedges for accounting purposes and, as a result, marked the derivative instruments to fair value and recognized the changes in fair value in the unaudited condensed consolidated statements of comprehensive income (loss) under the caption “Operating costs and expenses—Net (gain) loss on sale of assets and other.”

Cash receipts in the following table reflect gains on diesel fuel derivatives which matured during the 2017 period, calculated as the difference between the contract price and the market settlement price of matured contracts. Non-cash losses below represent the change in fair value of diesel fuel derivatives held at June 30, 2017 and the reversal of previously recognized non-cash gains or losses on derivative contracts that matured during the three and six months ended June 30, 2017.

	Three months ended June 30,					Six months ended June 30,
In thousands	2018		2017			2018		2017
Cash received on diesel fuel derivatives	$	—	$	185		$	—	$	919
Non-cash loss on diesel fuel derivatives	—		(1,098		)	—		(3,729		)
Loss on diesel fuel derivatives, net	$	—	$	(913	)	$	—	$	(2,810	)

Balance sheet offsetting of derivative assets and liabilities

The Company’s derivative contracts are recorded at fair value in the condensed consolidated balance sheets under the captions “Derivative assets”, “Noncurrent derivative assets”, “Derivative liabilities”, and “Noncurrent derivative liabilities”, as applicable. Derivative assets and liabilities with the same counterparty that are subject to contractual terms which provide for net settlement are reported on a net basis in the condensed consolidated balance sheets.

The following table presents the gross amounts of recognized natural gas and diesel fuel derivative assets and liabilities, as applicable, the amounts offset under netting arrangements with counterparties, and the resulting net amounts presented in the condensed consolidated balance sheets for the periods presented, all at fair value.

In thousands	June 30, 2018			December 31, 2017
Commodity derivative assets:
Gross amounts of recognized assets	$	885		$	2,603
Gross amounts offset on balance sheet	(682		)	—
Net amounts of assets on balance sheet	203			2,603
Commodity derivative liabilities:
Gross amounts of recognized liabilities	(9,747		)	—
Gross amounts offset on balance sheet	682			—
Net amounts of liabilities on balance sheet	$	(9,065	)	$	—

The following table reconciles the net amounts disclosed above to the individual financial statement line items in the condensed consolidated balance sheets.

In thousands	June 30, 2018			December 31, 2017
Derivative assets	$	203		$	2,603
Noncurrent derivative assets	—			—
Net amounts of assets on balance sheet	203			2,603
Derivative liabilities	(9,065		)	—
Noncurrent derivative liabilities	—			—
Net amounts of liabilities on balance sheet	(9,065		)	—
Total derivative assets (liabilities), net	$	(8,862	)	$	2,603

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Fair Value Measurements

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

The Company follows a three-level valuation hierarchy for disclosure of fair value measurements. The valuation hierarchy categorizes assets and liabilities measured at fair value into one of three different levels depending on the observability of the inputs employed in the measurement. The three levels are defined as follows:

• Level 1: Observable inputs that reflect unadjusted quoted prices for identical assets or liabilities in active markets as of the reporting date.

• Level 2: Observable market-based inputs or unobservable inputs corroborated by market data. These are inputs other than quoted prices in active markets included in Level 1, which are either directly or indirectly observable as of the reporting date.

• Level 3: Unobservable inputs not corroborated by market data and may be used with internally developed methodologies that result in management’s best estimate of fair value.

A financial instrument’s categorization within the hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Level 1 inputs are given the highest priority in the fair value hierarchy while Level 3 inputs are given the lowest priority. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the placement of assets and liabilities within the levels of the hierarchy. As Level 1 inputs generally provide the most reliable evidence of fair value, the Company uses Level 1 inputs when available. The Company’s policy is to recognize transfers between the hierarchy levels as of the beginning of the reporting period in which the event or change in circumstances caused the transfer.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The Company's derivative instruments are reported at fair value on a recurring basis. In determining the fair values of swap contracts, a discounted cash flow method is used due to the unavailability of relevant comparable market data for the Company’s exact contracts. The discounted cash flow method estimates future cash flows based on quoted market prices for forward commodity prices and a risk-adjusted discount rate. The fair values of swap contracts are calculated mainly using significant observable inputs (Level 2). Calculation of the fair values of collars requires the use of an industry-standard option pricing model that considers various inputs including quoted forward prices for commodities, time value, volatility factors, and current market and contractual prices for the underlying instruments, as well as other relevant economic measures. These assumptions are observable in the marketplace or can be corroborated by active markets or broker quotes and are therefore designated as Level 2 within the valuation hierarchy. The Company’s calculation of fair value for each of its derivative positions is compared to the counterparty valuation for reasonableness.

The following tables summarize the valuation of financial instruments by pricing levels that were accounted for at fair value on a recurring basis as of June 30, 2018 and December 31, 2017.

	Fair value measurements at June 30, 2018 using:
In thousands	Level 1		Level 2			Level 3		Total
Derivative liabilities:
Swaps	$	—	$	(8,862	)	$	—	$	(8,862	)
Total	$	—	$	(8,862	)	$	—	$	(8,862	)
	Fair value measurements at December 31, 2017 using:
In thousands	Level 1		Level 2			Level 3		Total
Derivative assets:
Swaps	$	—	$	2,603		$	—	$	2,603
Total	$	—	$	2,603		$	—	$	2,603

Assets Measured at Fair Value on a Nonrecurring Basis

Certain assets are reported at fair value on a nonrecurring basis in the condensed consolidated financial statements. The following methods and assumptions were used to estimate the fair values for those assets.

Asset Impairments – Proved crude oil and natural gas properties are reviewed for impairment on a field-by-field basis each quarter. The estimated future cash flows expected in connection with the field are compared to the carrying amount of the field to determine if the carrying amount is recoverable. If the carrying amount of the field exceeds its estimated undiscounted future cash flows, the carrying amount of the field is reduced to its estimated fair value. Risk-adjusted probable and possible reserves may be taken into consideration when determining estimated future net cash flows and fair value when such reserves exist and are economically recoverable. Due to the unavailability of relevant comparable market data, a discounted cash flow method is used to determine the fair value of proved properties. The discounted cash flow method estimates future cash flows based on the Company's estimates of future crude oil and natural gas production, commodity prices based on commodity futures price strips adjusted for differentials, operating costs, and a risk-adjusted discount rate. The fair value of proved crude oil and natural gas properties is calculated using significant unobservable inputs (Level 3). The following table sets forth quantitative information about the significant unobservable inputs used by the Company to calculate the fair value of proved crude oil and natural gas properties using a discounted cash flow method.

Unobservable Input	Assumption
Future production	Future production estimates for each property
Forward commodity prices	Forward NYMEX strip prices through 2022 (adjusted for differentials), escalating 3% per year thereafter
Operating costs	Estimated costs for the current year, escalating 3% per year thereafter
Productive life of field	Ranging from 1 to 38 years
Discount rate	10%

Unobservable inputs to the fair value assessment are reviewed quarterly and are revised as warranted based on a number of factors, including reservoir performance, new drilling, crude oil and natural gas prices, changes in costs, technological advances, new geological or geophysical data, or other economic factors. Fair value measurements of proved properties are reviewed and approved by certain members of the Company’s management.

For the three and six months ended June 30, 2018, estimated future net cash flows were determined to be in excess of cost basis, therefore no impairment was recorded for the Company’s proved crude oil and natural gas properties for those periods.

For the three and six months ended June 30, 2017, the Company determined the carrying amounts of certain proved properties were not recoverable from future cash flows, and therefore, were impaired. Impairments of proved properties totaled $81.5 million and $82.3 million for the three and six months ended June 30, 2017, respectively. The 2017 impairments reflected fair value adjustments primarily concentrated in the Arkoma Woodford field ($81.2 million, all in the second quarter of 2017) and various non-core areas in the North and South regions ($1.1 million, including $0.3 million in the second quarter of 2017). The impaired properties were written down to their estimated fair value at the time of impairment of approximately $72 million.

Certain unproved crude oil and natural gas properties were impaired during the three and six months ended June 30, 2018 and 2017, reflecting recurring amortization of undeveloped leasehold costs on properties the Company expects will not be transferred to proved properties over the lives of the leases based on drilling plans, experience of successful drilling, and the average holding period.

The following table sets forth the non-cash impairments of both proved and unproved properties for the indicated periods. Proved and unproved property impairments are recorded under the caption “Property impairments” in the unaudited condensed consolidated statements of comprehensive income (loss).

	Three months ended June 30,				Six months ended June 30,
In thousands	2018		2017		2018		2017
Proved property impairments	$	—	$	81,469	$	—	$	82,340
Unproved property impairments	29,162		41,847		62,946		92,349
Total	$	29,162	$	123,316	$	62,946	$	174,689

Financial Instruments Not Recorded at Fair Value

The following table sets forth the estimated fair values of financial instruments that are not recorded at fair value in the condensed consolidated financial statements.

	June 30, 2018				December 31, 2017
In thousands	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Debt:
Revolving credit facility	$	—	$	—	$	188,000	$	188,000
Note payable	8,845		8,800		9,974		9,900
5% Senior Notes due 2022 (1)	1,997,782		2,030,100		1,997,576		2,040,000
4.5% Senior Notes due 2023	1,487,803		1,522,900		1,486,690		1,526,800
3.8% Senior Notes due 2024	992,588		976,000		992,036		988,800
4.375% Senior Notes due 2028	988,090		994,100		988,061		987,200
4.9% Senior Notes due 2044	691,435		683,600		691,354		679,900
Total debt	$	6,166,543	$	6,215,500	$	6,353,691	$	6,420,600

(1) As discussed in Note 12. Subsequent Events, on July 12, 2018 the Company announced it will redeem $400 million, or 20%, of its outstanding $2.0 billion of 5% Senior Notes due 2022 on August 16, 2018.

The fair value of revolving credit facility borrowings at December 31, 2017 approximate carrying value based on borrowing rates available to the Company for bank loans with similar terms and maturities and are classified as Level 2 in the fair value hierarchy.

The fair value of the note payable is determined using a discounted cash flow approach based on the interest rate and payment terms of the note payable and an assumed discount rate. The fair value of the note payable is significantly influenced by the discount rate assumption, which is derived by the Company and is unobservable. Accordingly, the fair value of the note payable is classified as Level 3 in the fair value hierarchy.

The fair values of the 5% Senior Notes due 2022 (“2022 Notes”), the 4.5% Senior Notes due 2023 (“2023 Notes”), the 3.8% Senior Notes due 2024 (“2024 Notes”), the 4.375% Senior Notes due 2028 (“2028 Notes”), and the 4.9% Senior Notes due 2044 (“2044 Notes”) are based on quoted market prices and, accordingly, are classified as Level 1 in the fair value hierarchy.

The carrying values of all classes of cash and cash equivalents, trade receivables, and trade payables are considered to be representative of their respective fair values due to the short term maturities of those instruments.

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Long-Term Debt

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Long-Term Debt

Long-Term Debt

Long-term debt, net of unamortized discounts, premiums, and debt issuance costs totaling $42.3 million and $44.3 million at June 30, 2018 and December 31, 2017, respectively, consists of the following.

In thousands	June 30, 2018		December 31, 2017
Revolving credit facility	$	—	$	188,000
Note payable	8,845		9,974
5% Senior Notes due 2022 (1)	1,997,782		1,997,576
4.5% Senior Notes due 2023	1,487,803		1,486,690
3.8% Senior Notes due 2024	992,588		992,036
4.375% Senior Notes due 2028	988,090		988,061
4.9% Senior Notes due 2044	691,435		691,354
Total debt	$	6,166,543	$	6,353,691
Less: Current portion of long-term debt	2,322		2,286
Long-term debt, net of current portion	$	6,164,221	$	6,351,405

(1) As discussed in Note 12. Subsequent Events, on July 12, 2018 the Company announced it will redeem $400 million, or 20%, of its outstanding $2.0 billion of 5% Senior Notes due 2022 on August 16, 2018.

Revolving Credit Facility

On April 9, 2018, the Company entered into a new unsecured revolving credit facility, maturing on April 9, 2023, with aggregate lender commitments totaling $1.5 billion, which may be increased up to a total of $4.0 billion upon agreement between the Company and participating lenders. In connection with the execution of the new credit facility, the Company terminated its then-existing $2.75 billion credit facility that was due to mature in May 2019. The Company had no outstanding borrowings on its credit facility at June 30, 2018.

Borrowings under the credit facility, if any, bear interest at market-based interest rates plus a margin based on the terms of the borrowing and the credit ratings assigned to the Company's senior, unsecured, long-term indebtedness. The Company incurs commitment fees based on currently assigned credit ratings of 0.20% per annum on the daily average amount of unused borrowing availability under its credit facility.

The Company's new credit facility retains substantially the same restrictive covenants as the previous credit facility, including a requirement that the Company maintain a consolidated net debt to total capitalization ratio of no greater than 0.65 to 1.00. This ratio represents the ratio of net debt (calculated as total face value of debt plus outstanding letters of credit less cash and cash equivalents) divided by the sum of net debt plus total shareholders' equity plus, to the extent resulting in a reduction of total shareholders’ equity, the amount of any non-cash impairment charges incurred, net of any tax effect, after June 30, 2014. The Company was in compliance with the credit facility covenants at June 30, 2018.

Senior Notes

The following table summarizes the face values, maturity dates, semi-annual interest payment dates, and optional redemption periods related to the Company’s outstanding senior note obligations at June 30, 2018.

	2022 Notes (1)	2023 Notes	2024 Notes	2028 Notes	2044 Notes
Face value (in thousands)	$2,000,000	$1,500,000	$1,000,000	$1,000,000	$700,000
Maturity date	Sep 15, 2022	April 15, 2023	June 1, 2024	January 15, 2028	June 1, 2044
Interest payment dates	March 15, Sep 15	April 15, Oct 15	June 1, Dec 1	Jan 15, July 15	June 1, Dec 1
Make-whole redemption period (2)	—	Jan 15, 2023	Mar 1, 2024	Oct 15, 2027	Dec 1, 2043

(1) The Company has the option to redeem all or a portion of its 2022 Notes at the decreasing redemption prices specified in the indenture related to the 2022 Notes plus any accrued and unpaid interest to the date of redemption. See Note 12. Subsequent Events.

(2) At any time prior to the indicated dates, the Company has the option to redeem all or a portion of its senior notes of the applicable series at the “make-whole” redemption prices or amounts specified in the respective senior note indentures plus any accrued and unpaid interest to the date of redemption. On or after the indicated dates, the Company may redeem all or a portion of its senior notes at a redemption price equal to 100% of the principal amount of the senior notes being redeemed plus any accrued and unpaid interest to the date of redemption.

The Company’s senior notes are not subject to any mandatory redemption or sinking fund requirements.

The indentures governing the Company’s senior notes contain covenants that, among other things, limit the Company’s ability to create liens securing certain indebtedness, enter into certain sale-leaseback transactions, or consolidate, merge or transfer certain assets. The senior note covenants are subject to a number of important exceptions and qualifications. The Company was in compliance with these covenants at June 30, 2018. Three of the Company’s subsidiaries, Banner Pipeline Company, L.L.C., CLR Asset Holdings, LLC, and The Mineral Resources Company, which have no material assets or operations, fully and unconditionally guarantee the senior notes on a joint and several basis. The Company’s other subsidiaries, the value of whose assets and operations are minor, do not guarantee the senior notes.

Note Payable

In February 2012, 20 Broadway Associates LLC, a 100% owned subsidiary of the Company, borrowed $22 million under a 10-year amortizing term loan secured by the Company’s corporate office building in Oklahoma City, Oklahoma. The loan bears interest at a fixed rate of 3.14% per annum. Principal and interest are payable monthly through the loan’s maturity date of February 26, 2022. Accordingly, approximately $2.3 million is reflected as a current liability under the caption “Current portion of long-term debt” in the condensed consolidated balance sheets as of June 30, 2018.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Included below is a discussion of various future commitments of the Company as of June 30, 2018. The commitments under these arrangements are not recorded in the accompanying condensed consolidated balance sheets.

Drilling commitments – As of June 30, 2018, the Company has drilling rig contracts with various terms extending to June 2021 to ensure rig availability in its key operating areas. Future commitments as of June 30, 2018 total approximately $97 million, of which $42 million is expected to be incurred in the remainder of 2018, $41 million in 2019, $10 million in 2020, and $4 million in 2021.

Transportation and processing commitments – The Company has entered into transportation and processing commitments to guarantee capacity on crude oil and natural gas pipelines and natural gas processing facilities. The commitments, which have varying terms extending as far as 2028, require the Company to pay per-unit transportation or processing charges regardless of the amount of capacity used. Future commitments remaining as of June 30, 2018 under the arrangements amount to approximately $1.36 billion, of which $112 million is expected to be incurred in the remainder of 2018,$225 million in 2019, $194 million in 2020, $175 million in 2021, $168 million in 2022, and $487 million thereafter. The Company is not committed under the above contracts to deliver fixed and determinable quantities of crude oil or natural gas in the future.

Litigation – In November 2010, a putative class action was filed in the District Court of Blaine County, Oklahoma by Billy J. Strack and Daniela A. Renner as trustees of certain named trusts and on behalf of other similarly situated parties against the Company. The Petition, as amended, alleged the Company improperly deducted post-production costs from royalties paid to plaintiffs and other royalty interest owners from crude oil and natural gas wells located in Oklahoma. The plaintiffs alleged a number of claims, including breach of contract, fraud, breach of fiduciary duty, unjust enrichment, and other claims and sought recovery of compensatory damages, interest, punitive damages and attorney fees on behalf of the proposed class. The Company denied all allegations and denied that the case was properly brought as a class action. On June 11, 2015, the trial court certified a “hybrid” class requested by plaintiffs over the objections of the Company. The Company appealed the trial court’s class certification order. On February 8, 2017, the Oklahoma Court of Civil Appeals reversed the trial court’s ruling on certification and remanded the case for further proceedings. The plaintiffs filed a Petition for Rehearing which was denied by the Oklahoma Court of Civil Appeals. Plaintiffs then filed a Petition for Writ of Certiorari on May 23, 2017 to the Oklahoma Supreme Court, which was denied on October 2, 2017. On October 10, 2017, Plaintiffs filed with the trial court a “Second Amended and Renewed Motion for Class Action Certification and Request that the Court to Set a Briefing Schedule Related to Class Certification.” During the litigation the Company was not able to estimate a reasonably possible loss or range of loss or what impact, if any, the ultimate resolution of the action would have on its financial condition, results of operations or cash flows due to the preliminary status of the matter, the complexity and number of legal and factual issues presented by the matter and uncertainties with respect to, among other things, the nature of the claims and defenses, the existence and the potential size of the class, the scope and types of the properties and agreements involved, the production years involved, and the ultimate potential outcome of the matter. The Company further disclosed that it was reasonably possible one or more events could occur in the near term that could impact the Company’s ability to estimate the potential effect of this matter if any, on its financial condition, results of operations or cash flows. During the litigation the Company also disclosed plaintiffs alleged underpayments in excess of $200 million as damages, which may increase with the passage of time, a majority of which would be comprised of interest. After certification of the case as a class action was reversed the parties continued settlement negotiations. Due to the uncertainty of and burdens of litigation, on February 16, 2018, the Company reached a settlement in connection with this matter. Under the settlement, the Company initially expected to make payments and incur costs associated with the settlement of approximately $59.6 million. The Company accrued a loss for such amount at December 31, 2017, which was subsequently increased to $61.7 million at June 30, 2018 to reflect additional settlement obligations resulting from the passage of time. Such accrual is included in “Accrued liabilities and other” on the condensed consolidated balance sheets. On April 3, 2018, the District Court of Garfield County, Oklahoma preliminarily approved the settlement and set certain dates applicable to the settlement including the timing and content of Notice, Opt-out, and Objections to Class Members. The Fairness Hearing was held on June 11, 2018. On June 12, 2018, the court entered an order formally approving the settlement. The order approving the settlement is not subject to appeal. On June 20, 2018, the court entered an order approving Plaintiff Counsels’ request for Attorney Fees and Expenses. The deadline for an appeal of the order approving Attorney Fees and Expenses is August 13, 2018. In accordance with the settlement terms, the Company expects to make payments totaling approximately $50 million in the third quarter of 2018 and expects to satisfy the remainder of its settlement obligations in 2019.

The Company is involved in various other legal proceedings including, but not limited to, commercial disputes, claims from royalty and surface owners, property damage claims, personal injury claims, disputes with tax authorities and other matters. While the outcome of these legal matters cannot be predicted with certainty, the Company does not expect them to have a material effect on its financial condition, results of operations or cash flows. In addition to the accrued loss on the matter described above, as of June 30, 2018 and December 31, 2017 the Company recorded a liability in the condensed consolidated balance sheets under the caption “Other noncurrent liabilities” of $4.7 million and $7.6 million, respectively, for various matters, none of which are believed to be individually significant.

Environmental risk – Due to the nature of the crude oil and natural gas business, the Company is exposed to possible environmental risks. The Company is not aware of any material environmental issues or claims.

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Stock-Based Compensation

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

Stock-Based Compensation

The Company has granted restricted stock to employees and directors pursuant to the Continental Resources, Inc. 2013 Long-Term Incentive Plan ("2013 Plan") as discussed below. The Company’s associated compensation expense, which is included in the caption “General and administrative expenses” in the unaudited condensed consolidated statements of comprehensive income (loss), was $10.6 million and $9.1 million for the three months ended June 30, 2018 and 2017, respectively, and $21.5 million and $20.6 million for the six months endedJune 30, 2018 and 2017, respectively.

In May 2013, the Company adopted the 2013 Plan and reserved 19,680,072 shares of common stock that may be issued pursuant to the plan. As of June 30, 2018, the Company had 13,727,512 shares of common stock available for long-term incentive awards to employees and directors under the 2013 Plan.

Restricted stock is awarded in the name of the recipient and constitutes issued and outstanding shares of the Company’s common stock for all corporate purposes during the period of restriction and, except as otherwise provided under the 2013 Plan or agreement relevant to a given award, includes the right to vote the restricted stock and to receive dividends, subject to forfeiture. Restricted stock grants generally vest over periods ranging from one to three years.

A summary of changes in non-vested restricted shares outstanding for the six months ended June 30, 2018 is presented below.

	Number of non-vested shares		Weighted average grant-date fair value
Non-vested restricted shares outstanding at December 31, 2017	4,026,110		$	35.63
Granted	1,277,491		52.47
Vested	(1,041,748	)	47.10
Forfeited	(178,957	)	37.27
Non-vested restricted shares outstanding at June 30, 2018	4,082,896		$	37.90

The grant date fair value of restricted stock represents the closing market price of the Company’s common stock on the date of grant. Compensation expense for a restricted stock grant is determined at the grant date fair value and is recognized over the vesting period as services are rendered by employees and directors. The Company estimates the number of forfeitures expected to occur in determining the amount of stock-based compensation expense to recognize. There are no post-vesting restrictions related to the Company’s restricted stock. The fair value at the vesting date of restricted stock that vested during the six months endedJune 30, 2018 was approximately $57.0 million. As of June 30, 2018, there was approximately $94 million of unrecognized compensation expense related to non-vested restricted stock. This expense is expected to be recognized over a weighted average period of 1.5 years.

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Accumulated Other Comprehensive Income (Notes)

6 Months Ended

Jun. 30, 2018

Accumulated Other Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Accumulated Other Comprehensive Income (Loss)

Adjustments resulting from the process of translating foreign functional currency financial statements into U.S. dollars are included in “Accumulated other comprehensive income (loss)” within shareholders’ equity in the condensed consolidated balance sheets and “Other comprehensive income, net of tax” in the unaudited condensed consolidated statements of comprehensive income (loss). The following table summarizes the change in accumulated other comprehensive income (loss) for the three and six months ended June 30, 2018 and 2017:

	Three months ended June 30,					Six months ended June 30,
In thousands	2018		2017			2018		2017
Beginning accumulated other comprehensive income (loss), net of tax	$	309	$	(122	)	$	307	$	(260	)
Foreign currency translation adjustments	16		189			18		327
Income taxes (1)	—		—			—		—
Other comprehensive income, net of tax	16		189			18		327
Ending accumulated other comprehensive income, net of tax	$	325	$	67		$	325	$	67

(1) A valuation allowance has been recognized against all deferred tax assets associated with losses generated by the Company's Canadian operations, thereby resulting in no income taxes on other comprehensive income.

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Income Taxes (Notes)

6 Months Ended

Jun. 30, 2018

Income Taxes [Abstract]

Income Tax Disclosure [Text Block]

Income Taxes

Income taxes are accounted for using the liability method under which deferred income taxes are recognized for the future tax effects of temporary differences between financial statement carrying amounts and the tax basis of existing assets and liabilities using the enacted statutory tax rates in effect at period-end. The effect on deferred taxes for a change in tax rates is recognized in income in the period that includes the enactment date. The Company’s policy is to recognize penalties and interest related to unrecognized tax benefits, if any, in income tax expense. A valuation allowance for deferred tax assets is recorded when it is more likely than not that the benefit from the deferred tax asset will not be realized.

The Company's (provision) benefit for income taxes totaled ($75.2) million and $37.9 million for the three months ended June 30, 2018 and 2017, respectively. The Company's (provision) benefit for income taxes totaled ($146.8) million and $31.8 million for the six months endedJune 30, 2018 and 2017, respectively. These amounts differ from the amounts computed by applying the United States statutory federal income tax rate to net income before income taxes. The sources and tax effects of the differences are reflected in the table below:

	Three months ended June 30,										Six months ended June 30,
$ in thousands	2018			Tax rate %		2017			Tax rate %		2018			Tax rate %		2017			Tax rate %
Expected income tax (provision) benefit based on US statutory tax rate (1)	$	(66,716	)	21	%	$	35,494		35	%	$	(130,867	)	21	%	$	33,222		35	%
State income taxes, net of federal benefit	(9,531		)	3	%	3,043			3	%	(18,695		)	3	%	2,848			3	%
Tax benefit (deficiency) from stock-based compensation	359			—	%	(473		)	(1	%)	1,868			—	%	(3,773		)	(4	%)
Canadian valuation allowance (2)	(78		)	—	%	(112		)	—	%	(148		)	—	%	(257		)	—	%
Other, net	734			—	%	(97		)	—	%	1,074			—	%	(207		)	—	%
(Provision) benefit for income taxes	$	(75,232	)	24	%	$	37,855		37	%	$	(146,768	)	24	%	$	31,833		34	%

(1) In December 2017 the Tax Cuts and Jobs Act was signed into law, which among other things reduced the U.S. federal corporate income tax rate from 35% to 21% effective January 1, 2018.

(2) Represents valuation allowances recognized against all deferred tax assets associated with operating loss carryforwards generated by the Company's Canadian operations during the respective periods for which the Company does not expect to realize a benefit.

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Subsequent Events (Notes)

6 Months Ended

Jun. 30, 2018

Subsequent Events [Abstract]

Subsequent Events [Text Block]

Subsequent Events

Partial redemption of senior notes

On July 12, 2018, the Company announced it will redeem $400 million, or 20%, of its outstanding $2.0 billion of 5% Senior Notes due 2022 on August 16, 2018. The redemption price will be equal to 101.667% of the principal amount called for redemption plus accrued and unpaid interest to the redemption date in accordance with the terms of the 2022 Notes and the related indenture under which the 2022 Notes were issued.

The aggregate of the principal amount, redemption premium, and accrued interest payable upon partial redemption of the 2022 Notes is expected to total approximately $415 million. The Company expects to record a pre-tax loss on extinguishment of debt related to the partial redemption of approximately $7 million, which will be reflected in third quarter 2018 results.

Formation of strategic relationship

On August 6, 2018, the Company executed definitive documents to form a strategic relationship with Franco-Nevada, subject to customary closing conditions, to acquire minerals in the SCOOP and STACK plays, primarily in areas operated by the Company. In accordance with the deal terms, Franco-Nevada has agreed to pay approximately $220 million for a stake in a newly-formed minerals subsidiary. The Company expects to receive the proceeds at closing in the fourth quarter of 2018. The amount to be received by the Company is subject to adjustment under the terms of the transaction documents.

In addition, the parties have also committed, subject to satisfaction of agreed upon development thresholds, to spend up to a combined $125 million per year over the next three years to acquire additional minerals through the newly-formed subsidiary. With a carry component on capital acquisition costs, the Company is to fund 20% of future mineral acquisitions. The Company will be entitled to receive between 25% and 50% of total revenues generated by the minerals subsidiary based upon performance relative to certain predetermined targets.

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Basis of Presentation and Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Description of the Company

Continental Resources, Inc. (the “Company”) was originally formed in 1967 and is incorporated under the laws of the State of Oklahoma. The Company's principal business is crude oil and natural gas exploration, development and production with properties primarily located in the North, South, and East regions of the United States. The North region consists of properties north of Kansas and west of the Mississippi River and includes North Dakota Bakken, Montana Bakken and the Red River units. The South region includes all properties south of Nebraska and west of the Mississippi River including various plays in the SCOOP and STACK areas of Oklahoma. The East region is primarily comprised of undeveloped leasehold acreage east of the Mississippi River with no significant drilling or production operations.

A substantial portion of the Company’s operations are located in the North region, with that region comprising 59% of the Company’s crude oil and natural gas production and 74% of its crude oil and natural gas revenues for the six months ended June 30, 2018. The Company's principal producing properties in the North region are located in the Bakken field of North Dakota and Montana. In recent years, the Company has significantly expanded its operations in the South region with its increased activity in the SCOOP and STACK plays. The South region comprised 41% of the Company's crude oil and natural gas production and 26% of its crude oil and natural gas revenues for the six months ended June 30, 2018.

For the six months ended June 30, 2018, crude oil accounted for 56% of the Company’s total production and 82% of its crude oil and natural gas revenues.

Basis of Presentation

Basis of presentation

The condensed consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are 100% owned, after all significant intercompany accounts and transactions have been eliminated upon consolidation.

This report has been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) applicable to interim financial information. Because this is an interim period filing presented using a condensed format, it does not include all disclosures required by accounting principles generally accepted in the United States (“U.S. GAAP”), although the Company believes the disclosures are adequate to make the information not misleading. You should read this Quarterly Report on Form 10-Q (“Form 10-Q”) together with the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 (“2017 Form 10-K”), which includes a summary of the Company’s significant accounting policies and other disclosures.

The condensed consolidated financial statements as of June 30, 2018 and for the three and six month periods ended June 30, 2018 and 2017 are unaudited. The condensed consolidated balance sheet as of December 31, 2017 was derived from the audited balance sheet included in the 2017 Form 10-K. The Company has evaluated events or transactions through the date this report on Form 10-Q was filed with the SEC in conjunction with its preparation of these condensed consolidated financial statements.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure and estimation of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results may differ from those estimates. The most significant estimates and assumptions impacting reported results are estimates of the Company’s crude oil and natural gas reserves, which are used to compute depreciation, depletion, amortization and impairment of proved crude oil and natural gas properties. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) necessary for a fair presentation in accordance with U.S. GAAP have been included in these unaudited interim condensed consolidated financial statements. The results of operations for any interim period are not necessarily indicative of the results of operations that may be expected for any other interim period or for an entire year.

Earnings Per Share

Earnings per share

Basic net income (loss) per share is computed by dividing net income (loss) by the weighted-average number of shares outstanding for the period. In periods where the Company has net income, diluted earnings per share reflects the potential dilution of non-vested restricted stock awards, which are calculated using the treasury stock method.

Inventories

Inventories

Inventory is comprised of crude oil held in storage or as line fill in pipelines, pipeline imbalances, and tubular goods and equipment to be used in the Company's exploration and development activities. Crude oil inventories are valued at the lower of cost or market primarily using the first-in, first-out inventory method. Tubular goods and equipment are valued primarily using a weighted average cost method applied to specific classes of inventory items.

New Accounting Pronouncements

Adoption of new accounting pronouncements

Revenue recognition and presentation – In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes nearly all previously existing revenue recognition guidance under U.S. GAAP. Subsequently, the FASB issued additional guidance to assist entities with implementation efforts, including the issuance of ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net). This new guidance became effective for reporting periods beginning after December 15, 2017. The Company adopted the new revenue recognition and presentation guidance on January 1, 2018 as required. See Note 4. Revenues for discussion of the adoption impact and the applicable disclosures required by the new guidance.

New accounting pronouncements not yet adopted

Leases – In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires companies to recognize a right of use asset and related liability on the balance sheet for the rights and obligations arising from leases with durations greater than 12 months. The standard is effective for interim and annual reporting periods beginning after December 15, 2018. The Company plans to adopt the new standard using the simplified transition method prescribed by ASU 2018-11, Leases (Topic 842): Targeted Improvements, whereby the Company will initially apply the new standard as of the January 1, 2019 adoption date and will recognize a cumulative-effect adjustment to the opening balance of retained earnings, if any, upon adoption in lieu of retrospectively applying the new standard to pre-adoption periods.

The Company continues to evaluate the impact of ASU 2016-02 on its financial statements, accounting policies and internal controls and is in the process of implementing systems and processes to capture, classify, and account for leases within the scope of the new guidance and to comply with the related disclosure requirements. Interpretations and application of the new guidance continue to evolve and are being monitored for applicability and impact on the Company.

Based on an initial review of the new guidance and the Company’s current commitments, the Company anticipates it will be required to recognize lease assets and liabilities related to drilling rig commitments, certain equipment rentals and leases, certain surface use agreements, and potentially other arrangements. The Company does not believe any of its firm transportation agreements will qualify as leases, but continues to evaluate such arrangements.

Based on commitments in place as of June 30, 2018, the Company currently estimates its lease assets and liabilities to be recognized under ASU 2016-02 will total approximately $100 million, the majority of which will be comprised of future cash flows associated with drilling rig commitments, which are further discussed in Note 8. Commitments and Contingencies–Drilling commitments. This estimate may be subsequently revised based on unforeseen changes in the nature, timing, and extent of the Company's contractual arrangements from period to period, finalization of the Company's evaluation of its firm transportation agreements, or due to changes in the Company's interpretation or application of the new guidance.

Credit losses – In June 2016, the FASB issued ASU 2016-13, Financial Instruments–Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This standard changes how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. The standard will replace the currently required incurred loss approach with an expected loss model for instruments measured at amortized cost. The standard is effective for interim and annual periods beginning after December 15, 2019 and shall be applied using a modified retrospective approach resulting in a cumulative effect adjustment to retained earnings upon adoption. The Company continues to evaluate the new standard and is unable to estimate its financial statement impact at this time; however, the impact is not expected to be material. Historically, the Company's credit losses on crude oil and natural gas sales receivables and joint interest receivables have been immaterial.

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Basis of Presentation and Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Components of Inventories

The components of inventory as of June 30, 2018 and December 31, 2017 consisted of the following:

In thousands	June 30, 2018		December 31, 2017
Tubular goods and equipment	$	18,722	$	14,946
Crude oil	96,588		82,460
Total	$	115,310	$	97,406

Calculation of Basic and Diluted Weighted Average Shares and Net Income Per Share

The following table presents the calculation of basic and diluted weighted average shares outstanding and net income (loss) per share for the three and six months ended June 30, 2018 and 2017.

	Three months ended June 30,					Six months ended June 30,
In thousands, except per share data	2018		2017			2018		2017
Net income (loss) (numerator)	$	242,464	$	(63,557	)	$	476,410	$	(63,088	)
Weighted average shares (denominator):
Weighted average shares - basic	371,921		371,111			371,733		370,972
Non-vested restricted stock (1)	2,584		—			2,850		—
Weighted average shares - diluted	374,505		371,111			374,583		370,972
Net income (loss) per share:
Basic	$	0.65	$	(0.17	)	$	1.28	$	(0.17	)
Diluted	$	0.65	$	(0.17	)	$	1.27	$	(0.17	)

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Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2018

Supplemental Cash Flow Elements [Abstract]

Summary of Supplemental Cash Flow Information

The following table discloses supplemental cash flow information about cash paid for interest and income tax payments and refunds. Also disclosed is information about investing activities that affects recognized assets and liabilities but does not result in cash receipts or payments.

	Six months ended June 30,
In thousands	2018		2017
Supplemental cash flow information:
Cash paid for interest	$	122,940	$	138,346
Cash paid for income taxes	—		2
Cash received for income tax refunds	5		148
Non-cash investing activities:
Asset retirement obligation additions and revisions, net	3,562		3,771

As of June 30, 2018 and December 31, 2017, the Company had $317.5 million and $302.8 million, respectively, of accrued capital expenditures included in “Net property and equipment” and “Accounts payable trade” in the condensed consolidated balance sheets.

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Revenues (Tables)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Schedule of Prospective Adoption of New Accounting Pronouncements [Table Text Block]

The following table reflects the change in presentation of revenues and applicable expenses on the Company's 2018 results under the new and previous guidance.

	Three months ended June 30, 2018								Six months ended June 30, 2018
In thousands	New Standard			Prior Presentation			Change		New Standard			Prior Presentation			Change
Revenues:
Crude oil and natural gas sales	$	1,137,528		$	1,090,274		$	47,254	$	2,251,380		$	2,154,829		$	96,551
Loss on natural gas derivatives, net	(12,685		)	(12,685		)	—		(2,511		)	(2,511		)	—
Crude oil and natural gas service operations	12,270			12,270			—		29,272			29,272			—
Total revenues	$	1,137,113		$	1,089,859		$	47,254	$	2,278,141		$	2,181,590		$	96,551
Operating costs and expenses:
Transportation expenses	$	47,254		$	—		$	47,254	$	96,551		$	—		$	96,551
Net income	$	242,464		$	242,464		$	—	$	476,410		$	476,410		$	—

Disaggregation of Revenue [Table Text Block]

The following table presents the disaggregation of the Company's crude oil and natural gas revenues for the three and six months ended June 30, 2018.

	Three months ended June 30, 2018						Six months ended June 30, 2018
In thousands	North Region		South Region		Total		North Region		South Region		Total
Crude oil revenues:
Operated properties	$	587,582	$	145,603	$	733,185	$	1,156,794	$	284,056	$	1,440,850
Non-operated properties	196,301		17,398		213,699		379,188		33,127		412,315
Total crude oil revenues	783,883		163,001		946,884		1,535,982		317,183		1,853,165
Natural gas revenues:
Operated properties	41,425		121,188		162,613		93,245		248,442		341,687
Non-operated properties	13,982		14,049		28,031		27,661		28,867		56,528
Total natural gas revenues	55,407		135,237		190,644		120,906		277,309		398,215
Crude oil and natural gas sales	$	839,290	$	298,238	$	1,137,528	$	1,656,888	$	594,492	$	2,251,380
Timing of revenue recognition
Goods transferred at a point in time	$	839,290	$	298,238	$	1,137,528	$	1,656,888	$	594,492	$	2,251,380
Goods transferred over time	—		—		—		—		—		—
	$	839,290	$	298,238	$	1,137,528	$	1,656,888	$	594,492	$	2,251,380

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Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2018

Summary of Outstanding Contracts with Respect to Natural Gas

At June 30, 2018 the Company had outstanding natural gas derivative contracts as set forth in the table below. The volumes reflected below represent an aggregation of multiple derivative contracts having similar remaining durations expected to be realized ratably over the remainder of 2018. At June 30, 2018 the Company had no outstanding crude oil derivative contracts.

		Swaps Weighted Average Price
Period and Type of Contract	MMBtus
July 2018 - December 2018
Swaps - Henry Hub	115,920,000	$	2.88

Realized and Unrealized Gains and Losses on Derivative Instruments

Cash receipts and payments in the following table reflect the gain or loss on derivative contracts which matured during the period, calculated as the difference between the contract price and the market settlement price of matured contracts. Non-cash gains and losses below represent the change in fair value of derivative instruments which continue to be held at period end and the reversal of previously recognized non-cash gains or losses on derivative contracts that matured during the period.

	Three months ended June 30,						Six months ended June 30,
In thousands	2018			2017			2018			2017
Cash received (paid) on derivatives:
Natural gas fixed price swaps	$	4,758		$	6,709		$	8,954		$	12,187
Natural gas collars	—			(3,050		)	—			(9,456		)
Cash received (paid) on derivatives, net	4,758			3,659			8,954			2,731
Non-cash gain (loss) on derivatives:
Natural gas fixed price swaps	(17,443		)	12,520			(11,465		)	35,416
Natural gas collars	—			11,843			—			36,733
Non-cash gain (loss) on derivatives, net	(17,443		)	24,363			(11,465		)	72,149
Gain (loss) on natural gas derivatives, net	$	(12,685	)	$	28,022		$	(2,511	)	$	74,880

Gross Amounts of Recognized Derivative Assets and Liabilities

The following table presents the gross amounts of recognized natural gas and diesel fuel derivative assets and liabilities, as applicable, the amounts offset under netting arrangements with counterparties, and the resulting net amounts presented in the condensed consolidated balance sheets for the periods presented, all at fair value.

In thousands	June 30, 2018			December 31, 2017
Commodity derivative assets:
Gross amounts of recognized assets	$	885		$	2,603
Gross amounts offset on balance sheet	(682		)	—
Net amounts of assets on balance sheet	203			2,603
Commodity derivative liabilities:
Gross amounts of recognized liabilities	(9,747		)	—
Gross amounts offset on balance sheet	682			—
Net amounts of liabilities on balance sheet	$	(9,065	)	$	—

Reconciles Net Amounts Derivative Assets and Liabilities

The following table reconciles the net amounts disclosed above to the individual financial statement line items in the condensed consolidated balance sheets.

In thousands	June 30, 2018			December 31, 2017
Derivative assets	$	203		$	2,603
Noncurrent derivative assets	—			—
Net amounts of assets on balance sheet	203			2,603
Derivative liabilities	(9,065		)	—
Noncurrent derivative liabilities	—			—
Net amounts of liabilities on balance sheet	(9,065		)	—
Total derivative assets (liabilities), net	$	(8,862	)	$	2,603

Diesel Fuel [Member]

Realized and Unrealized Gains and Losses on Derivative Instruments

Cash receipts in the following table reflect gains on diesel fuel derivatives which matured during the 2017 period, calculated as the difference between the contract price and the market settlement price of matured contracts. Non-cash losses below represent the change in fair value of diesel fuel derivatives held at June 30, 2017 and the reversal of previously recognized non-cash gains or losses on derivative contracts that matured during the three and six months ended June 30, 2017.

	Three months ended June 30,					Six months ended June 30,
In thousands	2018		2017			2018		2017
Cash received on diesel fuel derivatives	$	—	$	185		$	—	$	919
Non-cash loss on diesel fuel derivatives	—		(1,098		)	—		(3,729		)
Loss on diesel fuel derivatives, net	$	—	$	(913	)	$	—	$	(2,810	)

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Valuation of Financial Instruments by Pricing Levels

The following tables summarize the valuation of financial instruments by pricing levels that were accounted for at fair value on a recurring basis as of June 30, 2018 and December 31, 2017.

	Fair value measurements at June 30, 2018 using:
In thousands	Level 1		Level 2			Level 3		Total
Derivative liabilities:
Swaps	$	—	$	(8,862	)	$	—	$	(8,862	)
Total	$	—	$	(8,862	)	$	—	$	(8,862	)
	Fair value measurements at December 31, 2017 using:
In thousands	Level 1		Level 2			Level 3		Total
Derivative assets:
Swaps	$	—	$	2,603		$	—	$	2,603
Total	$	—	$	2,603		$	—	$	2,603

Quantitative Information about Significant Unobservable Inputs

The following table sets forth quantitative information about the significant unobservable inputs used by the Company to calculate the fair value of proved crude oil and natural gas properties using a discounted cash flow method.

Unobservable Input	Assumption
Future production	Future production estimates for each property
Forward commodity prices	Forward NYMEX strip prices through 2022 (adjusted for differentials), escalating 3% per year thereafter
Operating costs	Estimated costs for the current year, escalating 3% per year thereafter
Productive life of field	Ranging from 1 to 38 years
Discount rate	10%

Property Impairments

The following table sets forth the non-cash impairments of both proved and unproved properties for the indicated periods. Proved and unproved property impairments are recorded under the caption “Property impairments” in the unaudited condensed consolidated statements of comprehensive income (loss).

	Three months ended June 30,				Six months ended June 30,
In thousands	2018		2017		2018		2017
Proved property impairments	$	—	$	81,469	$	—	$	82,340
Unproved property impairments	29,162		41,847		62,946		92,349
Total	$	29,162	$	123,316	$	62,946	$	174,689

Fair Values of Financial Instruments not Recorded at Fair Value

The following table sets forth the estimated fair values of financial instruments that are not recorded at fair value in the condensed consolidated financial statements.

	June 30, 2018				December 31, 2017
In thousands	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Debt:
Revolving credit facility	$	—	$	—	$	188,000	$	188,000
Note payable	8,845		8,800		9,974		9,900
5% Senior Notes due 2022 (1)	1,997,782		2,030,100		1,997,576		2,040,000
4.5% Senior Notes due 2023	1,487,803		1,522,900		1,486,690		1,526,800
3.8% Senior Notes due 2024	992,588		976,000		992,036		988,800
4.375% Senior Notes due 2028	988,090		994,100		988,061		987,200
4.9% Senior Notes due 2044	691,435		683,600		691,354		679,900
Total debt	$	6,166,543	$	6,215,500	$	6,353,691	$	6,420,600

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Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Summary of Maturity Dates, Semi-Annual Interest Payment Dates, and Optional Redemption Periods of Outstanding Senior Note Obligations

The following table summarizes the face values, maturity dates, semi-annual interest payment dates, and optional redemption periods related to the Company’s outstanding senior note obligations at June 30, 2018.

	2022 Notes (1)	2023 Notes	2024 Notes	2028 Notes	2044 Notes
Face value (in thousands)	$2,000,000	$1,500,000	$1,000,000	$1,000,000	$700,000
Maturity date	Sep 15, 2022	April 15, 2023	June 1, 2024	January 15, 2028	June 1, 2044
Interest payment dates	March 15, Sep 15	April 15, Oct 15	June 1, Dec 1	Jan 15, July 15	June 1, Dec 1
Make-whole redemption period (2)	—	Jan 15, 2023	Mar 1, 2024	Oct 15, 2027	Dec 1, 2043

(1) The Company has the option to redeem all or a portion of its 2022 Notes at the decreasing redemption prices specified in the indenture related to the 2022 Notes plus any accrued and unpaid interest to the date of redemption. See Note 12. Subsequent Events.

(2) At any time prior to the indicated dates, the Company has the option to redeem all or a portion of its senior notes of the applicable series at the “make-whole” redemption prices or amounts specified in the respective senior note indentures plus any accrued and unpaid interest to the date of redemption. On or after the indicated dates, the Company may redeem all or a portion of its senior notes at a redemption price equal to 100% of the principal amount of the senior notes being redeemed plus any accrued and unpaid interest to the date of redemption.

Schedule of Long-term Debt Instruments [Table Text Block]

Long-term debt, net of unamortized discounts, premiums, and debt issuance costs totaling $42.3 million and $44.3 million at June 30, 2018 and December 31, 2017, respectively, consists of the following.

In thousands	June 30, 2018		December 31, 2017
Revolving credit facility	$	—	$	188,000
Note payable	8,845		9,974
5% Senior Notes due 2022 (1)	1,997,782		1,997,576
4.5% Senior Notes due 2023	1,487,803		1,486,690
3.8% Senior Notes due 2024	992,588		992,036
4.375% Senior Notes due 2028	988,090		988,061
4.9% Senior Notes due 2044	691,435		691,354
Total debt	$	6,166,543	$	6,353,691
Less: Current portion of long-term debt	2,322		2,286
Long-term debt, net of current portion	$	6,164,221	$	6,351,405

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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Restricted stock [Member]

Summary of Changes in Non-vested Shares of Restricted Stock Outstanding

A summary of changes in non-vested restricted shares outstanding for the six months ended June 30, 2018 is presented below.

	Number of non-vested shares		Weighted average grant-date fair value
Non-vested restricted shares outstanding at December 31, 2017	4,026,110		$	35.63
Granted	1,277,491		52.47
Vested	(1,041,748	)	47.10
Forfeited	(178,957	)	37.27
Non-vested restricted shares outstanding at June 30, 2018	4,082,896		$	37.90

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Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2018

Accumulated Other Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following table summarizes the change in accumulated other comprehensive income (loss) for the three and six months ended June 30, 2018 and 2017:

	Three months ended June 30,					Six months ended June 30,
In thousands	2018		2017			2018		2017
Beginning accumulated other comprehensive income (loss), net of tax	$	309	$	(122	)	$	307	$	(260	)
Foreign currency translation adjustments	16		189			18		327
Income taxes (1)	—		—			—		—
Other comprehensive income, net of tax	16		189			18		327
Ending accumulated other comprehensive income, net of tax	$	325	$	67		$	325	$	67

(1) A valuation allowance has been recognized against all deferred tax assets associated with losses generated by the Company's Canadian operations, thereby resulting in no income taxes on other comprehensive income.

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Income Taxes (Tables)

6 Months Ended

Jun. 30, 2018

Effective Tax Rate Reconciliation Table [Abstract]

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The sources and tax effects of the differences are reflected in the table below:

	Three months ended June 30,										Six months ended June 30,
$ in thousands	2018			Tax rate %		2017			Tax rate %		2018			Tax rate %		2017			Tax rate %
Expected income tax (provision) benefit based on US statutory tax rate (1)	$	(66,716	)	21	%	$	35,494		35	%	$	(130,867	)	21	%	$	33,222		35	%
State income taxes, net of federal benefit	(9,531		)	3	%	3,043			3	%	(18,695		)	3	%	2,848			3	%
Tax benefit (deficiency) from stock-based compensation	359			—	%	(473		)	(1	%)	1,868			—	%	(3,773		)	(4	%)
Canadian valuation allowance (2)	(78		)	—	%	(112		)	—	%	(148		)	—	%	(257		)	—	%
Other, net	734			—	%	(97		)	—	%	1,074			—	%	(207		)	—	%
(Provision) benefit for income taxes	$	(75,232	)	24	%	$	37,855		37	%	$	(146,768	)	24	%	$	31,833		34	%

(1) In December 2017 the Tax Cuts and Jobs Act was signed into law, which among other things reduced the U.S. federal corporate income tax rate from 35% to 21% effective January 1, 2018.

(2) Represents valuation allowances recognized against all deferred tax assets associated with operating loss carryforwards generated by the Company's Canadian operations during the respective periods for which the Company does not expect to realize a benefit.

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Organization and Nature of Business - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Percentage of crude oil and natural gas production concentrated in crude oil	56.00%
Percentage of crude oil and natural gas revenue concentrated in crude oil	82.00%
North Region [Member]
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Percentage of operations concentrated in geographic areas	59.00%
Percentage of revenues concentrated in geographic areas	74.00%
South Region [Member]
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Percentage of operations concentrated in geographic areas	41.00%
Percentage of revenues concentrated in geographic areas	26.00%

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Basis of Presentation and Significant Accounting Policies - Components of Inventories (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Tubular goods and equipment	$ 18,722	$ 14,946
Crude oil	96,588	82,460
Total	$ 115,310	$ 97,406

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Basis of Presentation and Significant Accounting Policies - Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017		Jun. 30, 2018	Jun. 30, 2017
Accounting Policies [Abstract]
Weighted Average Number Diluted Shares Outstanding Adjustment		1,933,200			2,546,200
Net income (loss) (numerator)
Net income (loss) (numerator)	$ 242,464	$ (63,557)		$ 476,410	$ (63,088)
Weighted average shares - basic	371,921,000	371,111,000		371,733,000	370,972,000
Non-vested restricted stock (1)	2,584,000	0	[1]	2,850,000	0	[1]
Weighted average shares - diluted	374,505,000	371,111,000		374,583,000	370,972,000
Net income (loss) per share:
Basic (in dollars per share)	$ 0.65	$ (0.17)		$ 1.28	$ (0.17)
Diluted (in dollars per share)	$ 0.65	$ (0.17)		$ 1.27	$ (0.17)

[1] For the three and six months ended June 30, 2017, the Company had a net loss and therefore the potential dilutive effect of approximately 1,933,200 and 2,546,200 weighted average non-vested restricted shares, respectively, were not included in the calculation of diluted net loss per share because to do so would have been anti-dilutive to the computations for those periods.

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Basis of Presentation and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies - New Accounting Pronouncements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accounting Policies [Abstract]
Estimated lease assets and liabilities	$ 100,000		$ 100,000
Transportation expenses	$ 47,254	$ 0	$ 96,551	$ 0

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Supplemental Cash Flow Information - Summary of Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Cash paid for interest	$ 122,940	$ 138,346
Cash paid for income taxes	0	2
Cash received for income tax refunds	5	148
Noncash Investing and Financing Items [Abstract]
Accrued capital expenditures	317,500		$ 302,800
Increase (Decrease) in Asset Retirement Obligations	$ 3,562	$ 3,771

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Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Crude oil and natural gas sales	$ 1,137,528	$ 626,548	$ 2,251,380	$ 1,260,398
Gain (loss) on natural gas derivatives, net	(12,685)	28,022	(2,511)	74,880
Crude oil and natural gas service operations	12,270	6,916	29,272	11,636
Total revenues	1,137,113	661,486	2,278,141	1,346,914
Transportation expenses	47,254	0	96,551	0
Net income	242,464	$ (63,557)	476,410	$ (63,088)
Previous Revenue Recognition
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Crude oil and natural gas sales	1,090,274		2,154,829
Gain (loss) on natural gas derivatives, net	(12,685)		(2,511)
Crude oil and natural gas service operations	12,270		29,272
Total revenues	1,089,859		2,181,590
Transportation expenses	0		0
Net income	242,464		476,410
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Crude oil and natural gas sales	47,254		96,551
Gain (loss) on natural gas derivatives, net	0		0
Crude oil and natural gas service operations	0		0
Total revenues	47,254		96,551
Transportation expenses	47,254		96,551
Net income	$ 0		$ 0

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Revenues Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	$ 1,137,528	$ 626,548	$ 2,251,380	$ 1,260,398
Transportation expenses	47,254	$ 0	96,551	$ 0
Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	1,137,528		2,251,380
Transferred over Time
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	0		0
North Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	839,290		1,656,888
North Region [Member] | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	839,290		1,656,888
North Region [Member] | Transferred over Time
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	0		0
South Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	298,238		594,492
South Region [Member] | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	298,238		594,492
South Region [Member] | Transferred over Time
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	0		0
Crude oil sales
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	946,884		1,853,165
Transportation expenses	40,200		80,600
Crude oil sales | North Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	783,883		1,535,982
Crude oil sales | South Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	163,001		317,183
Natural gas sales
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	190,644		398,215
Transportation expenses	7,000		15,900
Natural gas sales | North Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	55,407		120,906
Natural gas sales | South Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	135,237		277,309
Operated properties | Crude oil sales
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	733,185		1,440,850
Operated properties | Crude oil sales | North Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	587,582		1,156,794
Operated properties | Crude oil sales | South Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	145,603		284,056
Operated properties | Natural gas sales
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	162,613		341,687
Operated properties | Natural gas sales | North Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	41,425		93,245
Operated properties | Natural gas sales | South Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	121,188		248,442
Non-operated properties | Crude oil sales
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	213,699		412,315
Non-operated properties | Crude oil sales | North Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	196,301		379,188
Non-operated properties | Crude oil sales | South Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	17,398		33,127
Non-operated properties | Natural gas sales
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	28,031		56,528
Non-operated properties | Natural gas sales | North Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	13,982		27,661
Non-operated properties | Natural gas sales | South Region [Member]
Disaggregation of Revenue [Line Items]
Crude oil and natural gas sales	$ 14,049		$ 28,867

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Derivative Instruments - Summary of Outstanding Contracts with Respect to Natural Gas (Detail) - July 2018 to December 2018 Swaps - Natural Gas [Member]	6 Months Ended
	Jun. 30, 2018 MMBTU $ / MMBTU
Derivative [Line Items]
Natural Gas Production Derivative Volume, MMBtus | MMBTU	115,920,000
Swaps Weighted Average Price | $ / MMBTU	2.88

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Derivative Instruments - Realized and Unrealized Gains and Losses on Derivative Instruments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Non-cash gain (loss) on derivatives:
Non-cash gain (loss) on derivatives, net			$ (11,465)	$ 68,420
Gain (loss) on natural gas derivatives, net	$ (12,685)	$ 28,022	(2,511)	74,880
Diesel Fuel [Member]
Cash received (paid) on derivatives:
Cash received (paid) on derivatives, net	0	185	0	919
Non-cash gain (loss) on derivatives:
Non-cash gain (loss) on derivatives, net	0	(1,098)	0	(3,729)
Gain (loss) on natural gas derivatives, net	0	(913)	0	(2,810)
Swap [Member] | Natural Gas [Member]
Cash received (paid) on derivatives:
Cash received (paid) on derivatives, net	4,758	6,709	8,954	12,187
Non-cash gain (loss) on derivatives:
Non-cash gain (loss) on derivatives, net	(17,443)	12,520	(11,465)	35,416
Collars | Natural Gas [Member]
Cash received (paid) on derivatives:
Cash received (paid) on derivatives, net	0	(3,050)	0	(9,456)
Non-cash gain (loss) on derivatives:
Non-cash gain (loss) on derivatives, net	0	11,843	0	36,733
Crude Oil and Natural Gas [Member]
Cash received (paid) on derivatives:
Cash received (paid) on derivatives, net	4,758	3,659	8,954	2,731
Non-cash gain (loss) on derivatives:
Non-cash gain (loss) on derivatives, net	(17,443)	24,363	(11,465)	72,149
Gain (loss) on natural gas derivatives, net	$ (12,685)	$ 28,022	$ (2,511)	$ 74,880

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Derivative Instruments - Gross Amounts of Recognized Derivative Assets and Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross amounts of recognized assets	$ 885	$ 2,603
Gross amounts offset on balance sheet	(682)	0
Net amounts of assets on balance sheet	203	2,603
Gross amounts of recognized liabilities	(9,747)	0
Gross amounts offset on balance sheet	682	0
Net amounts of liabilities on balance sheet	$ (9,065)	$ 0

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Derivative Instruments - Reconciles Net Amounts Derivative Assets and Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative assets	$ 203	$ 2,603
Noncurrent derivative assets	0	0
Net amounts of assets on balance sheet	203	2,603
Derivative liabilities	(9,065)	0
Noncurrent derivative liabilities	0	0
Net amounts of liabilities on balance sheet	(9,065)	0
Total derivative assets (liabilities), net	$ (8,862)	$ 2,603

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Derivative Instruments Summary of Outstanding Contracts with Respect to Diesel Fuel (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Derivative [Line Items]
Non-cash gain (loss) on derivatives, net			$ (11,465)	$ 68,420
Gain on natural gas derivatives, net	$ (12,685)	$ 28,022	(2,511)	74,880
Diesel Fuel [Member]
Derivative [Line Items]
Cash received (paid) on derivatives, net	0	185	0	919
Non-cash gain (loss) on derivatives, net	0	(1,098)	0	(3,729)
Gain on natural gas derivatives, net	$ 0	$ (913)	$ 0	$ (2,810)

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Fair Value Measurements - Valuation of Financial Instruments by Pricing Levels (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivative assets (liabilities):
Derivative assets (liabilities)	$ (8,862)	$ 2,603
Swap [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	(8,862)	2,603
Fair Value, Inputs, Level 1 [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 1 [Member] | Swap [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 2 [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	(8,862)	2,603
Fair Value, Inputs, Level 2 [Member] | Swap [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	(8,862)	2,603
Fair Value, Inputs, Level 3 [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 3 [Member] | Swap [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	$ 0	$ 0

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Fair Value Measurements - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018
Fair Value Measurements [Line Items]
Operating cost escalation assumption used in impairment assessment	3.00%
Discount factor utilized as standardized measure for future net cash flows	10.00%
Minimum [Member]
Fair Value Measurements [Line Items]
Productive life of field (in years)	0 years
Maximum [Member]
Fair Value Measurements [Line Items]
Productive life of field (in years)	38 years
Forward Commodity Prices [Member]
Fair Value Measurements [Line Items]
Forward commodity price escalation assumption used in impairment assessment	3.00%

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Fair Value Measurements - Property Impairments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Proved property impairments	$ 0	$ 81,469	$ 0	$ 82,340
Unproved property impairments	29,162	41,847	62,946	92,349
Oil and gas property fair value after impairment		72,000		72,000
Property impairments	$ 29,162	123,316	$ 62,946	174,689
Arkoma Woodford [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Proved property impairments		81,200
Non-core [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Proved property impairments		$ 300		$ 1,100

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Fair Value Measurements - Fair Values of Financial Instruments not Recorded at Fair Value (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
5% Senior Notes due 2022 (1)
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	5.00%
Debt Instrument, Maturity Date, Description	2022
4.5% Senior Notes due 2023
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	4.50%
Debt Instrument, Maturity Date, Description	2023
3.8% Senior Notes due 2024
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	3.80%
Debt Instrument, Maturity Date, Description	2024
4.375% Senior Notes Due 2028
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	4.375%
Debt Instrument, Maturity Date, Description	2028
4.9% Senior Notes due 2044
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	4.90%
Debt Instrument, Maturity Date, Description	2044
Carrying Amount
Fair Value Measurements [Line Items]
Revolving credit facility	$ 0	$ 188,000
Note payable	8,845	9,974
Total debt	6,166,543	6,353,691
Carrying Amount | 5% Senior Notes due 2022 (1)
Fair Value Measurements [Line Items]
Senior notes	1,997,782	1,997,576
Carrying Amount | 4 1/2% Senior Notes Due 2023
Fair Value Measurements [Line Items]
Senior notes	1,487,803	1,486,690
Carrying Amount | 3.8% Senior Notes due 2024
Fair Value Measurements [Line Items]
Senior notes	992,588	992,036
Carrying Amount | 4.375% Senior Notes Due 2028
Fair Value Measurements [Line Items]
Senior notes	988,090	988,061
Carrying Amount | 4.9% Senior Notes due 2044
Fair Value Measurements [Line Items]
Senior notes	691,435	691,354
Estimated Fair Value
Fair Value Measurements [Line Items]
Revolving credit facility	0	188,000
Note payable	8,800	9,900
Total debt	6,215,500	6,420,600
Estimated Fair Value | 5% Senior Notes due 2022 (1)
Fair Value Measurements [Line Items]
Senior notes	2,030,100	2,040,000
Estimated Fair Value | 4 1/2% Senior Notes Due 2023
Fair Value Measurements [Line Items]
Senior notes	1,522,900	1,526,800
Estimated Fair Value | 3.8% Senior Notes due 2024
Fair Value Measurements [Line Items]
Senior notes	976,000	988,800
Estimated Fair Value | 4.375% Senior Notes Due 2028
Fair Value Measurements [Line Items]
Senior notes	994,100	987,200
Estimated Fair Value | 4.9% Senior Notes due 2044
Fair Value Measurements [Line Items]
Senior notes	$ 683,600	$ 679,900

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Long-Term Debt - Long-Term Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Less: Current portion of long-term debt	$ (2,322)	$ (2,286)
Long-term debt, net of current portion	$ 6,164,221	6,351,405
5% Senior Notes due 2022 (1)
Debt Instrument [Line Items]
Debt Instrument, stated interest rate	5.00%
Note payable
Debt Instrument [Line Items]
Debt Instrument, stated interest rate	3.14%
Note payable	$ 22,000
3.8% Senior Notes due 2024
Debt Instrument [Line Items]
Debt Instrument, stated interest rate	3.80%
4.375% Senior Notes Due 2028
Debt Instrument [Line Items]
Debt Instrument, stated interest rate	4.375%
4.9% Senior Notes due 2044
Debt Instrument [Line Items]
Debt Instrument, stated interest rate	4.90%
Carrying Amount
Debt Instrument [Line Items]
Revolving credit facility	$ 0	188,000
Note payable	8,845	9,974
Total debt	6,166,543	6,353,691
Carrying Amount | 5% Senior Notes due 2022 (1)
Debt Instrument [Line Items]
Senior notes	1,997,782	1,997,576
Carrying Amount | 4 1/2% Senior Notes Due 2023
Debt Instrument [Line Items]
Senior notes	1,487,803	1,486,690
Carrying Amount | 3.8% Senior Notes due 2024
Debt Instrument [Line Items]
Senior notes	992,588	992,036
Carrying Amount | 4.375% Senior Notes Due 2028
Debt Instrument [Line Items]
Senior notes	988,090	988,061
Carrying Amount | 4.9% Senior Notes due 2044
Debt Instrument [Line Items]
Senior notes	691,435	691,354
Estimated Fair Value
Debt Instrument [Line Items]
Revolving credit facility	0	188,000
Note payable	8,800	9,900
Total debt	6,215,500	6,420,600
Estimated Fair Value | 5% Senior Notes due 2022 (1)
Debt Instrument [Line Items]
Senior notes	2,030,100	2,040,000
Estimated Fair Value | 4 1/2% Senior Notes Due 2023
Debt Instrument [Line Items]
Senior notes	1,522,900	1,526,800
Estimated Fair Value | 3.8% Senior Notes due 2024
Debt Instrument [Line Items]
Senior notes	976,000	988,800
Estimated Fair Value | 4.375% Senior Notes Due 2028
Debt Instrument [Line Items]
Senior notes	994,100	987,200
Estimated Fair Value | 4.9% Senior Notes due 2044
Debt Instrument [Line Items]
Senior notes	$ 683,600	$ 679,900

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Long-Term Debt - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	$ 42,300	$ 42,300	$ 44,300
Line of credit facility, maturity date		Apr. 09, 2023
Aggregate amount of lender commitments on credit facility	1,500,000	$ 1,500,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 4,000,000	4,000,000
Line of credit facility, commitment fee percentage, per annum	0.20%
Current portion of long-term debt	$ 2,322	$ 2,322	2,286
Line of Credit Facility, Covenant Terms		0.65
4.5% Senior Notes due 2023
Debt Instrument [Line Items]
Debt Instrument, stated interest rate	4.50%	4.50%
Debt Instrument, Maturity Date, Description		2023
Note payable
Debt Instrument [Line Items]
Notes Payable	$ 22,000	$ 22,000
Loan term		10 years
Debt Instrument, stated interest rate	3.14%	3.14%
Debt Instrument, Maturity Date		Feb. 26, 2022
5% Senior Notes due 2022 (1)
Debt Instrument [Line Items]
Debt Instrument, stated interest rate	5.00%	5.00%
Debt Instrument, Maturity Date, Description		2022
3.8% Senior Notes due 2024
Debt Instrument [Line Items]
Debt Instrument, stated interest rate	3.80%	3.80%
Debt Instrument, Maturity Date, Description		2024
4.375% Senior Notes Due 2028
Debt Instrument [Line Items]
Debt Instrument, stated interest rate	4.375%	4.375%
Debt Instrument, Maturity Date, Description		2028
4.9% Senior Notes due 2044
Debt Instrument [Line Items]
Debt Instrument, stated interest rate	4.90%	4.90%
Debt Instrument, Maturity Date, Description		2044
Estimated Fair Value
Debt Instrument [Line Items]
Credit facility	$ 0	$ 0	188,000
Notes Payable	8,800	8,800	9,900
Estimated Fair Value | 5% Senior Notes due 2022 (1)
Debt Instrument [Line Items]
Senior notes	2,030,100	2,030,100	2,040,000
Estimated Fair Value | 3.8% Senior Notes due 2024
Debt Instrument [Line Items]
Senior notes	976,000	976,000	988,800
Estimated Fair Value | 4.375% Senior Notes Due 2028
Debt Instrument [Line Items]
Senior notes	994,100	994,100	987,200
Estimated Fair Value | 4.9% Senior Notes due 2044
Debt Instrument [Line Items]
Senior notes	683,600	683,600	679,900
Carrying Amount
Debt Instrument [Line Items]
Credit facility	0	0	188,000
Notes Payable	8,845	8,845	9,974
Carrying Amount | 5% Senior Notes due 2022 (1)
Debt Instrument [Line Items]
Senior notes	1,997,782	1,997,782	1,997,576
Carrying Amount | 3.8% Senior Notes due 2024
Debt Instrument [Line Items]
Senior notes	992,588	992,588	992,036
Carrying Amount | 4.375% Senior Notes Due 2028
Debt Instrument [Line Items]
Senior notes	988,090	988,090	988,061
Carrying Amount | 4.9% Senior Notes due 2044
Debt Instrument [Line Items]
Senior notes	$ 691,435	$ 691,435	$ 691,354

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Long-Term Debt Long-Term Debt - Summary of Maturity Dates, Semi-Annual Interest Payment Dates, and Optional Redemption Periods of Outstanding Senior Note Obligations (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)
2022 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 2,000,000
Maturity date	Sep. 15, 2022
Interest payment dates	March 15, Sep 15
2023 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,500,000
Maturity date	Apr. 15, 2023
Interest payment dates	April 15, Oct 15
Debt Instrument, Redemption Period, Start Date	Jan. 15, 2023
2024 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,000,000
Maturity date	Jun. 01, 2024
Interest payment dates	June 1, Dec 1
Debt Instrument, Redemption Period, Start Date	Mar. 01, 2024
2028 Notes
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,000,000
Maturity date	Jan. 15, 2028
Interest payment dates	Jan 15, July 15
Debt Instrument, Redemption Period, Start Date	Oct. 15, 2027
2044 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 700,000
Maturity date	Jun. 01, 2044
Interest payment dates	June 1, Dec 1
Debt Instrument, Redemption Period, Start Date	Dec. 01, 2043

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Commitments and Contingencies Commitments and Contingencies - Additional Information (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)
Long-term Purchase Commitment [Line Items]
Purchase Obligation Agreement Expiration Date	2028
Future Drilling Commitments At Balance Sheet Date	$ 97
Drilling Commitments Year One	42
Drilling Commitments Year Two	41
Drilling Commitments Year Three	10
Drilling Commitments Year Four	4
Purchase Obligation	1,400
Purchase Obligation, Future Minimum Payments, Remainder of Fiscal Year	112
Purchase Obligation, Due in Second Year	225
Purchase Obligation, Due in Third Year	194
Purchase Obligation, Due in Fourth Year	175
Purchase Obligation, Due in Fifth Year	168
Purchase Obligation, Due after Fifth Year	$ 487
Future Drilling Commitments End Date	2021-06

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Commitments and Contingencies Loss Contingencies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Jun. 30, 2018
Loss Contingencies [Line Items]
Legal proceedings recorded as a liability under other noncurrent liabilities	$ (7.6)	$ (4.7)
Strack royalty payment litigation [Member]
Loss Contingencies [Line Items]
Damages sought in litigation matter	200.0
Estimated Litigation Liability, Current	$ 59.6	61.7
Future settlement payment, current year		$ 50.0

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Stock Based Compensation - Stock Based Compensation Expenses (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Non-cash equity compensation	$ 10.6	$ 9.1	$ 21.5	$ 20.6

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Stock-Based Compensation - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($) shares
Restricted stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock available to grant | shares	13,727,512
Fair value at vesting date | $	$ 57.0
Unrecognized compensation expense related to non-vested | $	$ 94.0
Unrecognized compensation expense related to non-vested, period for recognition, in years	1 year 5 months 17 days
Restricted stock [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants vest over periods, in years	1 year
Restricted stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants vest over periods, in years	3 years
2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for issue | shares	19,680,072

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Stock Based Compensation - Summary of Changes in Non Vested Shares of Restricted Stock Outstanding (Detail)	6 Months Ended
	Jun. 30, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested shares, beginning balance | shares	4,026,110
Granted (unaudited), shares | shares	1,277,491
Vested shares | shares	(1,041,748)
Forfeited (unaudited), shares | shares	(178,957)
Non-vested shares, ending balance | shares	4,082,896
Non-vested, weighted average grant-date fair value, beginning of period | $ / shares	$ 35.63
Granted, weighted average grant-date fair value | $ / shares	52.47
Vested, weighted average grant-date fair value | $ / shares	47.10
Forfeited, weighted average grant-date fair value | $ / shares	37.27
Non-vested, weighted average grant-date fair value, end of period | $ / shares	$ 37.90

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Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income [Abstract]
Accumulated other comprehensive income	$ 325	$ 67	$ 325	$ 67	$ 309	$ 307	$ (122)	$ (260)
Foreign currency translation adjustments	16	189	18	327
Translation Adjustment Functional to Reporting Currency, Tax Benefit (Expense)	0	0	0	0
Total other comprehensive income, net of tax	$ 16	$ 189	$ 18	$ 327

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Income Taxes (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Taxes [Abstract]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	[1]	$ (66,716)	$ 35,494	$ (130,867)	$ 33,222
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%	35.00%	21.00%	35.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount		$ (9,531)	$ 3,043	$ (18,695)	$ 2,848
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent		3.00%	3.00%	3.00%	3.00%
Effective Income Tax Rate Reconciliation, Tax Benefit (Deficiency), Amount		$ 359	$ (473)	$ 1,868	$ (3,773)
Effective Income Tax Rate Reconciliation, Tax Benefit (Deficiency), Percent		0.00%	(1.00%)	0.00%	(4.00%)
Effective Income Tax Rate Reconciliation, Valuation Allowance, Amount	[2]	$ (78)	$ (112)	$ (148)	$ (257)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent		0.00%	0.00%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount		$ 734	$ (97)	$ 1,074	$ (207)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent		0.00%	0.00%	0.00%	0.00%
(Provision) benefit for income taxes		$ (75,232)	$ 37,855	$ (146,768)	$ 31,833
Effective Income Tax Rate Reconciliation, Percent		24.00%	37.00%	24.00%	34.00%

[1] In December 2017 the Tax Cuts and Jobs Act was signed into law, which among other things reduced the U.S. federal corporate income tax rate from 35% to 21% effective January 1, 2018.

[2] Represents valuation allowances recognized against all deferred tax assets associated with operating loss carryforwards generated by the Company's Canadian operations during the respective periods for which the Company does not expect to realize a benefit.

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Subsequent Events (Details) - Subsequent Event [Member] - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Aug. 16, 2018
Subsequent Event [Line Items]
Senior notes			$ 400
Early Repayment of Senior Debt		$ 415
Gain (Loss) on Extinguishment of Debt		$ 7
Proceeds from formation of new mineral relationship	$ 220
Combined per year acquisitions of additional mineral interests	$ 125

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Label	Element	Value
Retained Earnings [Member]
Net Income (Loss) Attributable to Parent	us-gaap_NetIncomeLoss	$ 242,464,000