10-Q

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the quarterly period ended June 30, 2017

or

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

For the transition period from to

Commission file number: 1-33615

Concho Resources Inc.

(Exact name of registrant as specified in its charter)

Delaware	76-0818600
(State or other jurisdiction	(I.R.S. Employer
of incorporation or organization)	Identification No.)
One Concho Center
600 West Illinois Avenue
Midland, Texas	79701
(Address of principal executive offices)	(Zip code)

	(432) 683-7443
(Registrant’s telephone number, including area code)

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 ☑ No o  

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

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 ☑	Accelerated filer o
Non-accelerated filer o  (Do not check if a smaller reporting company)	Smaller reporting company o
Emerging growth company o

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. o 

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

Number of shares of the registrant’s common stock outstanding at July 31, 2017: 148,712,171 shares

TABLE OF CONTENTS

PART I – FINANCIAL INFORMATION:		iii
	Item 1. Consolidated Financial Statements (Unaudited)	iii
	Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	30
	Item 3. Quantitative and Qualitative Disclosures About Market Risk	54
	Item 4. Controls and Procedures	56
PART II – OTHER INFORMATION:		57
	Item 1. Legal Proceedings	57
	Item 1A. Risk Factors	57
	Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	58
	Item 6. Exhibits	59

i

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

Various statements and information contained in or incorporated by reference into this report that express a belief, expectation, or intention, or that are not statements of historical fact, are 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 (the “Exchange Act”). These forward-looking statements include statements, projections and estimates concerning our future financial position, operations, performance, business strategy, oil and natural gas reserves, drilling program, capital expenditures, liquidity and capital resources, the timing and success of specific projects, outcomes and effects of litigation, claims and disputes, derivative activities and potential financing. Forward-looking statements are generally accompanied by words such as “estimate,” “project,” “predict,” “believe,” “expect,” “anticipate,” “potential,” “could,” “may,” “foresee,” “plan,” “goal” or other words that convey the uncertainty of future events or outcomes. Forward-looking statements are not guarantees of performance. We have based these forward-looking statements on our current expectations and assumptions about future events and their potential effect on us. These statements are based on certain assumptions and analyses made by us in light of our experience and our perception of historical trends, current conditions and expected future developments as well as other factors we believe are appropriate under the circumstances. Actual results may differ materially from those implied or expressed by any forward-looking statements. These forward-looking statements speak only as of the date of this report, or if earlier, as of the date they were made. We disclaim any obligation to update or revise these statements unless required by law, and we caution you not to rely on them unduly. While our management considers these expectations and assumptions to be reasonable, they are inherently subject to significant business, economic, competitive, regulatory and other risks, contingencies and uncertainties relating to, among other matters, the risks discussed in “Part II, Item 1A, Risk Factors” of our Quarterly Report on Form 10-Q for the three months ended March 31, 2017 and in “Part I, Item 1A, Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2016, as well as those factors summarized below:

·declines in, or the sustained depression of, the prices we receive for our oil and natural gas;

·uncertainties about the estimated quantities of oil and natural gas reserves;

·drilling, completion and operating risks;

·the effects of government regulation, permitting and other legal requirements, including new legislation or regulation of hydraulic fracturing and the export of oil and natural gas;

·environmental hazards, such as uncontrollable flows of oil, natural gas, brine, well fluids, toxic gas or other pollution into the environment, including groundwater contamination;

·difficult and adverse conditions in the domestic and global capital and credit markets;

·risks related to the concentration of our operations in the Permian Basin of southeast New Mexico and west Texas;

·disruptions to, capacity constraints in or other limitations on the pipeline systems that deliver our oil, natural gas liquids and natural gas and other processing and transportation considerations;

·the costs and availability of equipment, resources, services and qualified personnel required to perform our drilling, completion and operating activities;

·potential financial losses or earnings reductions from our commodity price risk-management program;

·risks and liabilities associated with acquired properties or businesses;

·uncertainties about our ability to successfully execute our business and financial plans and strategies;

·the adequacy of our capital resources and liquidity including, but not limited to, access to additional borrowing capacity under our credit facility;

·the impact of potential changes in our credit ratings;

·cybersecurity risks, such as those involving unauthorized access, malicious software, data privacy breaches by employees or others with authorized access, cyber or phishing-attacks, ransomware and other security issues;

·uncertainties about our ability to replace reserves and economically develop our current reserves;

·general economic and business conditions, either internationally or domestically;

·competition in the oil and natural gas industry; and

·uncertainty concerning our assumed or possible future results of operations.

Reserve engineering is a process of estimating underground accumulations of oil and natural gas that cannot be measured in an exact way. The accuracy of any reserve estimate depends on the quality of available data, the interpretation of such data and the price and cost assumptions made by our reserve engineers. In addition, the results of drilling, testing and production activities may justify revisions of estimates that were made previously. If significant, such revisions would change the schedule of any further production and development drilling. Accordingly, reserve estimates may differ from the quantities of oil and natural gas that are ultimately recovered.

ii

PART I – FINANCIAL INFORMATION

Item 1.  Consolidated Financial Statements (Unaudited)

Consolidated Balance Sheets at June 30, 2017 and December 31, 2016	1
Consolidated Statements of Operations for the Three and Six Months Ended June 30, 2017 and 2016	2
Consolidated Statement of Stockholders’ Equity for the Six Months Ended June 30, 2017	3
Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2017 and 2016	4
Condensed Notes to Consolidated Financial Statements	5

iii

Concho Resources Inc.

Consolidated Balance Sheets

Unaudited

					June 30,		December 31,
(in millions, except share and per share amounts)					2017		2016
Assets
Current assets:
	Cash and cash equivalents			$	662	$	53
	Accounts receivable, net of allowance for doubtful accounts:
		Oil and natural gas			227		220
		Joint operations and other			241		238
	Derivative instruments				135		4
	Prepaid costs and other				39		31
			Total current assets		1,304		546
Property and equipment:
	Oil and natural gas properties, successful efforts method				19,710		18,476
	Accumulated depletion and depreciation				(7,904)		(7,390)
		Total oil and natural gas properties, net			11,806		11,086
	Other property and equipment, net				234		216
		Total property and equipment, net			12,040		11,302
Funds held in escrow					60		43
Deferred loan costs, net					15		11
Intangible asset - operating rights, net					24		24
Inventory					14		16
Noncurrent derivative instruments					90		-
Other assets					44		177
	Total assets			$	13,591	$	12,119
Liabilities and Stockholders’ Equity
Current liabilities:
	Accounts payable - trade			$	26	$	28
	Revenue payable				129		132
	Accrued drilling costs				446		359
	Derivative instruments				-		82
	Other current liabilities				165		152
			Total current liabilities		766		753
Long-term debt					2,741		2,741
Deferred income taxes					1,212		766
Noncurrent derivative instruments					-		96
Asset retirement obligations and other long-term liabilities					143		140
Commitments and contingencies (Note 9)
Stockholders’ equity:
	Common stock, $0.001 par value; 300,000,000 authorized; 149,314,618 and
		146,488,685 shares issued at June 30, 2017 and December 31, 2016, respectively			-		-
	Additional paid-in capital				7,108		6,783
	Retained earnings				1,686		884
	Treasury stock, at cost; 591,650 and 429,708 shares at June 30, 2017 and
		December 31, 2016, respectively			(65)		(44)
			Total stockholders’ equity		8,729		7,623
	Total liabilities and stockholders’ equity			$	13,591	$	12,119
The accompanying notes are an integral part of these consolidated financial statements.

1

Concho Resources Inc.

Consolidated Statements of Operations

Unaudited

			Three Months Ended				Six Months Ended
			June 30,				June 30,
(in millions, except per share amounts)				2017		2016		2017		2016
Operating revenues:
	Oil sales		$	461	$	339	$	963	$	581
	Natural gas sales			106		57		216		99
		Total operating revenues		567		396		1,179		680
Operating costs and expenses:
	Oil and natural gas production			100		77		187		169
	Production and ad valorem taxes			44		33		92		56
	Exploration and abandonments			20		21		35		44
	Depreciation, depletion and amortization			281		281		564		591
	Accretion of discount on asset retirement obligations			2		1		4		3
	Impairments of long-lived assets			-		-		-		1,525
	General and administrative (including non-cash stock-based compensation of
		$14 and $12 for the three months ended June 30, 2017
		and 2016, respectively, and $26 and $28 for the six months
		ended June 30, 2017 and 2016, respectively)		60		53		116		107
	(Gain) loss on derivatives			(209)		298		(495)		217
	(Gain) loss on disposition of assets, net			-		1		(654)		(110)
		Total operating costs and expenses		298		765		(151)		2,602
Income (loss) from operations				269		(369)		1,330		(1,922)
Other income (expense):
	Interest expense			(39)		(55)		(79)		(109)
	Loss on extinguishment of debt			(1)		-		(1)		-
	Other, net			16		-		16		(7)
		Total other expense		(24)		(55)		(64)		(116)
Income (loss) before income taxes				245		(424)		1,266		(2,038)
	Income tax (expense) benefit			(93)		158		(464)		752
Net income (loss)			$	152	$	(266)	$	802	$	(1,286)
Earnings per share:
	Basic net income (loss)		$	1.02	$	(2.04)	$	5.41	$	(9.94)
	Diluted net income (loss)		$	1.02	$	(2.04)	$	5.39	$	(9.94)
The accompanying notes are an integral part of these consolidated financial statements.

2

Concho Resources Inc.

Consolidated Statement of Stockholders’ Equity

Unaudited

		Common Stock				Additional							Total
		Issued				Paid-in		Retained	Treasury Stock			Stockholders’
(in millions, except share data)		Shares		Amount		Capital		Earnings	Shares		Amount		Equity
		(in thousands)							(in thousands)
BALANCE AT DECEMBER 31, 2016		146,489	$	-	$	6,783	$	884	430	$	(44)	$	7,623
	Adoption of ASU No. 2016-09 (Note 2)	-		-		8		-	-		-		8
BALANCE AT JANUARY 1, 2017		146,489		-		6,791		884	430		(44)		7,631
	Net income	-		-		-		802	-		-		802
	Common stock issued in business combinations	2,177		-		291		-	-		-		291
	Stock options exercised	20		-		-		-	-		-		-
	Grants of restricted stock	439		-		-		-	-		-		-
	Performance unit share conversion	249		-		-		-	-		-		-
	Cancellation of restricted stock	(59)		-		-		-	-		-		-
	Stock-based compensation	-		-		26		-	-		-		26
	Purchase of treasury stock	-		-		-		-	162		(21)		(21)
BALANCE AT JUNE 30, 2017		149,315	$	-	$	7,108	$	1,686	592	$	(65)	$	8,729
The accompanying notes are an integral part of these consolidated financial statements.

3

Concho Resources Inc.

Consolidated Statements of Cash Flows

Unaudited

					Six Months Ended
					June 30,
(in millions)					2017		2016
CASH FLOWS FROM OPERATING ACTIVITIES:
	Net income (loss)				$	802	$	(1,286)
	Adjustments to reconcile net income (loss) to net cash provided by operating activities:
		Depreciation, depletion and amortization				564		591
		Accretion of discount on asset retirement obligations				4		3
		Impairments of long-lived assets				-		1,525
		Exploration and abandonments, including dry holes				24		39
		Non-cash stock-based compensation expense				26		28
		Deferred income taxes				454		(740)
		Gain on disposition of assets, net				(654)		(110)
		(Gain) loss on derivatives				(495)		217
		Net settlements received from derivatives				96		427
		Loss on extinguishment of debt				1		-
		Other non-cash items				1		8
	Changes in operating assets and liabilities, net of acquisitions and dispositions:
			Accounts receivable			(24)		60
			Prepaid costs and other			(3)		(9)
			Inventory			1		3
			Accounts payable			(2)		7
			Revenue payable			(2)		(59)
			Other current liabilities			12		(28)
				Net cash provided by operating activities		805		676
CASH FLOWS FROM INVESTING ACTIVITIES:
	Capital expenditures on oil and natural gas properties					(863)		(651)
	Additions to property, equipment and other assets					(30)		(16)
	Proceeds from the disposition of assets					803		294
	Direct transaction costs for disposition of assets					(18)		-
	Funds held in escrow					(60)		-
	Contributions to equity method investments					-		(39)
				Net cash used in investing activities		(168)		(412)
CASH FLOWS FROM FINANCING ACTIVITIES:
	Proceeds from issuance of debt					105		-
	Payments of debt					(105)		-
	Excess tax deficiency from stock-based compensation (Note 2)					-		(1)
	Payments for loan costs					(7)		-
	Purchase of treasury stock					(21)		(11)
				Net cash used in financing activities		(28)		(12)
				Net increase in cash and cash equivalents		609		252
Cash and cash equivalents at beginning of period						53		229
Cash and cash equivalents at end of period					$	662	$	481
NON-CASH INVESTING AND FINANCING ACTIVITIES:
	Issuance of common stock for business combinations				$	291	$	231
The accompanying notes are an integral part of these consolidated financial statements.

4

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Note 1. Organization and nature of operations

Concho Resources Inc. (the “Company”) is a Delaware corporation formed on February 22, 2006. The Company’s principal business is the acquisition, development, exploration and production of oil and natural gas properties primarily located in the Permian Basin of southeast New Mexico and west Texas.

Note 2. Summary of significant accounting policies

Principles of consolidation. The consolidated financial statements of the Company include the accounts of the Company and its 100 percent owned subsidiaries. The Company consolidates the financial statements of these entities. All material intercompany balances and transactions have been eliminated.

Reclassifications. Certain prior period amounts have been reclassified to conform to the 2017 presentation. These reclassifications had no impact on net income (loss), total stockholders’ equity or total cash flows.

Use of estimates in the preparation of financial statements. Preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure 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 could differ from these estimates. Depletion of oil and natural gas properties is determined using estimates of proved oil and natural gas reserves. There are numerous uncertainties inherent in the estimation of quantities of proved reserves and in the projection of future rates of production and the timing of development expenditures. Similarly, evaluations for impairment of proved and unproved oil and natural gas properties are subject to numerous uncertainties including, among others, estimates of future recoverable reserves, commodity price outlooks and prevailing market rates of other sources of income and costs. Other significant estimates include, but are not limited to, asset retirement obligations, fair value of stock-based compensation, fair value of business combinations, fair value of nonmonetary exchanges, fair value of derivative financial instruments and income taxes.

Interim financial statements. The accompanying consolidated financial statements of the Company have not been audited by the Company’s independent registered public accounting firm, except that the consolidated balance sheet at December 31, 2016 is derived from audited consolidated financial statements. In the opinion of management, the accompanying consolidated financial statements reflect all adjustments necessary to present fairly the Company’s consolidated financial statements. All such adjustments are of a normal, recurring nature. In preparing the accompanying consolidated financial statements, management has made certain estimates and assumptions that affect reported amounts in the consolidated financial statements and disclosures of contingencies. Actual results may differ from those estimates. The results for interim periods are not necessarily indicative of annual results.

Certain disclosures have been condensed in or omitted from these consolidated financial statements. Accordingly, these condensed notes to the consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

Cash equivalents. The Company considers all cash on hand, depository accounts held by banks, money market accounts and investments with an original maturity of three months or less to be cash equivalents. The Company’s cash and cash equivalents are held in financial institutions in amounts that exceed the insurance limits of the Federal Deposit Insurance Corporation. However, management believes that the Company’s counterparty risks are minimal based on the reputation and history of the institutions selected. The majority of the Company’s cash is invested in stable value government money market funds.

5

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Equity method investments. At December 31, 2016, the Company owned a 50 percent membership interest in a midstream joint venture, Alpha Crude Connector, LLC (“ACC”), that operated a crude oil gathering and transportation system in the northern Delaware Basin. In February 2017, the Company closed on the divestiture of its ownership interest in ACC. See Note 4 for additional information regarding the disposition of ACC.

The Company accounted for its investment in ACC under the equity method of accounting for investments in unconsolidated affiliates. The Company’s net investment in ACC was approximately $129 million at December 31, 2016, and was included in other assets in the Company’s consolidated balance sheet. Gains and losses incurred from the Company’s equity investment in ACC were recorded in other income (expense) in its consolidated statements of operations.

The Company owns a 23.75 percent membership interest in an entity that operates a crude oil gathering and transportation system in the southern Delaware Basin. The Company accounts for its investment under the equity method of accounting for investments in unconsolidated affiliates. The Company’s net investment was approximately $45 million and $42 million at June 30, 2017 and December 31, 2016, respectively, and is included in other assets in the Company’s consolidated balance sheets. Gains and losses incurred from the Company’s equity investment are recorded in other income (expense) in its consolidated statements of operations.

Revenue recognition. Oil and natural gas revenues are recorded at the time of physical transfer of such products to the purchaser, which for the Company is primarily at the wellhead. The Company follows the sales method of accounting for oil and natural gas sales, recognizing revenues based on the Company’s actual proceeds from the oil and natural gas sold to purchasers.

General and administrative expense. The Company receives fees for the operation of jointly-owned oil and natural gas properties during the drilling and production phases and records such reimbursements as reductions of general and administrative expense. The Company earned reimbursements of approximately $4 million for each of the three months ended June 30, 2017 and 2016 and $8 million for each of the six months ended June 30, 2017 and 2016.

Recently adopted accounting pronouncements. The Company adopted Accounting Standards Update (“ASU”) No. 2016-09, “Compensation–Stock Compensations (Topic 718): Improvements to Employee Share-based Payment Accounting,” on January 1, 2017. The adoption did not have an impact on prior period consolidated financial statements. The Company elected to account for forfeitures of share-based payments as they occur. At December 31, 2016, the Company had not recorded compensation expense of approximately $8 million based on forecasted forfeitures nor the associated deferred tax benefit of approximately $3 million. The Company recognized all excess tax benefits not previously recorded, which totaled approximately $5 million at December 31, 2016. Upon adoption, the Company recorded a cumulative-effect adjustment, which decreased retained earnings by less than $1 million, increased additional paid-in capital by approximately $8 million, and decreased net deferred income taxes by approximately $8 million. The Company elected to prospectively classify excess tax benefits and deficiencies as operating activities on the consolidated statements of cash flows and will prospectively record those excess tax benefits and deficiencies as discrete items in the income tax provision in the consolidated statements of operations. Under the new standard, for the three and six months ended June 30, 2017, the Company recorded excess tax deficiencies of approximately $2 million and excess tax benefits of approximately $6 million, respectively, as offsets to the Company’s income tax provision. Also under the new standard, for the three and six months ended June 30, 2017, the Company recorded forfeitures of share-based payments of approximately $1 million and $6 million, respectively.

New accounting pronouncements issued but not yet adopted. In May 2014, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. This new revenue recognition model provides a five-step analysis in determining when and how revenue is recognized. The new model will require revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration a company expects to receive in exchange for those goods or services.

6

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

In August 2015, the FASB issued ASU No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” which deferred the effective date of ASU No. 2014-09 by one year. That new standard is now effective for annual reporting periods beginning after December 15, 2017. The Company expects to use the modified retrospective method to adopt the standard, meaning the cumulative effect of initially applying the standard will be recognized in the most current period presented in the financial statements. The Company has substantially completed its internal evaluation of the adoption of this standard and does not expect this new guidance will have a material impact on its consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842),” which supersedes current lease guidance. The new lease standard requires all leases with a term greater than one year to be recognized on the balance sheet while maintaining substantially similar classifications for financing and operating leases. Lease expense recognition on the consolidated statements of operations will be effectively unchanged. This guidance is effective for reporting periods beginning after December 15, 2018, and early adoption is permitted. The Company does not plan to early adopt the standard. The Company enters into lease agreements to support its operations. These agreements are for leases on assets such as office space, vehicles, field services, well equipment and drilling rigs. The Company is currently in the process of reviewing all contracts that could be applicable to this new guidance. The Company believes this new guidance will have a moderate impact to its consolidated balance sheets due to the recognition of right-of-use assets and lease liabilities that are not currently recognized under currently applicable guidance.

In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments–Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” which replaces the current “incurred loss” methodology for recognizing credit losses with an “expected loss” methodology. This new methodology requires that a financial asset measured at amortized cost be presented at the net amount expected to be collected. This standard is intended to provide more timely decision-useful information about the expected credit losses on financial instruments. This guidance is effective for fiscal years beginning after December 15, 2019, and early adoption is allowed as early as fiscal years beginning after December 15, 2018. The Company does not believe this new guidance will have a material impact on its consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” with the objective of adding guidance to assist in evaluating whether transactions should be accounted for as asset acquisitions or as business combinations. The guidance provides a screen to determine when an integrated set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the acquired assets is concentrated in a single asset or a group of similar assets, the set is not a business. If the screen is not met, to be considered a business, the set must include an input and a substantive process that together significantly contribute to the ability to create output. This new guidance is effective for annual periods beginning after December 15, 2017, and early adoption is allowed. The Company is evaluating the impact this new guidance will have on its consolidated financial statements. The new guidance could result in more acquisitions of oil and natural gas properties being accounted for as asset acquisitions instead of business combinations.

7

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Note 3. Exploratory well costs

The Company capitalizes exploratory well costs until a determination is made that the well has either found proved reserves or that it is impaired. After an exploratory well has been completed and found oil and natural gas reserves, a determination may be pending as to whether the oil and natural gas reserves can be classified as proved. In those circumstances, the Company continues to capitalize the well or project costs pending the determination of proved status if (i) the well has found a sufficient quantity of reserves to justify its completion as a producing well and (ii) the Company is making sufficient progress assessing the reserves and the economic and operating viability of the project.The capitalized exploratory well costs are carried in unproved oil and natural gas properties. See Note 15 for the proved and unproved components of oil and natural gas properties. If the exploratory well is determined to be impaired, the well costs are charged to exploration and abandonments expense in the consolidated statements of operations.

The following table reflects the Company’s net capitalized exploratory well activity during the six months ended June 30, 2017:

		Six Months Ended
(in millions)		June 30, 2017
Beginning capitalized exploratory well costs		$	151
	Additions to exploratory well costs pending the determination of proved reserves		268
	Reclassifications due to determination of proved reserves		(126)
Ending capitalized exploratory well costs		$	293

The following table provides an aging at June 30, 2017 and December 31, 2016 of capitalized exploratory well costs based on the date drilling was completed:

			June 30,		December 31,
(dollars in millions)			2017		2016
Capitalized exploratory well costs that have been capitalized for a period of one year or less		$	288	$	141
Capitalized exploratory well costs that have been capitalized for a period greater than one year			5		10
	Total capitalized exploratory well costs	$	293	$	151
Number of projects with exploratory well costs that have been capitalized for a period greater
	than one year		6		8

8

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Note 4. Acquisitions and divestitures

Northern Delaware Basin acquisition. In April 2017, the Company closed on the remainder of its acquisition in the Northern Delaware Basin. As consideration for the entire acquisition, the Company paid approximately $159 million in cash, of which $43 million was held in escrow at December 31, 2016, and issued to the seller approximately 2.2 million shares of its common stock with an approximate value of $291 million. The acquisition is subject to customary post-closing adjustments.

ACC divestiture. In February 2017, the Company closed on the divestiture of its ownership interest in ACC. The Company and its joint venture partner entered into separate agreements to sell 100 percent of their respective ownership interests in ACC. After adjustments for debt and working capital, the Company received cash proceeds from the sale of approximately $803 million. After direct transaction costs, the Company recorded a pre-tax gain on disposition of assets of approximately $655 million. The Company’s net investment in ACC at the time of closing was approximately $129 million.

9

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Note 5.Stock incentive plan

The Company’s 2015 Stock Incentive Plan provides for granting stock options, restricted stock awards and performance awards to directors, officers and employees of the Company. The restricted stock-based compensation awards generally vest over a period ranging from one to eight years.

A summary of the Company’s Stock Incentive Plan activity for the six months ended June 30, 2017 is presented below:

		Restricted		Stock		Performance
		Stock Shares		Options		Units
Outstanding at December 31, 2016			1,157,270		20,000		331,526
	Awards granted (a)		439,484		-		108,398
	Options exercised		-		(20,000)		-
	Awards cancelled / forfeited		(59,614)		-		(43,333)
	Lapse of restrictions		(354,909)		-		-
Outstanding at June 30, 2017		1,182,231		-		396,591
(a) Weighted average grant date fair value per share/unit		$	121.81	$	-	$	183.48

The following table reflects the future stock-based compensation expense to be recorded for all the stock-based compensation awards that were outstanding at June 30, 2017:

(in millions)
Remaining 2017		$	35
2018			48
2019			25
Thereafter			8
	Total	$	116

10

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Note 6. Disclosures about fair value measurements

The Company uses a valuation framework based upon inputs that market participants use in pricing an asset or liability, which are classified into two categories: observable inputs and unobservable inputs. Observable inputs represent market data obtained from independent sources, whereas unobservable inputs reflect a company’s own market assumptions, which are used if observable inputs are not reasonably available without undue cost and effort. These two types of inputs are further prioritized into the following fair value input hierarchy:

Level 1:     Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. The Company considers active markets to be those in which transactions for the assets or liabilities occur in sufficient frequency and volume to provide pricing information on an ongoing basis.

Level 2:     Quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability. This category includes those derivative instruments that the Company values using observable market data. Substantially all of these inputs are observable in the marketplace throughout the full term of the derivative instrument, can be derived from observable data, or supported by observable levels at which transactions are executed in the marketplace. Level 2 instruments primarily include non-exchange traded derivatives such as over-the-counter commodity price swaps, basis swaps, collars and floors, investments and interest rate swaps. The Company’s valuation models are primarily industry-standard models that consider various inputs including: (i) quoted forward prices for commodities, (ii) time value, (iii) current market and contractual prices for the underlying instruments and (iv) volatility factors, as well as other relevant economic measures.

Level 3:     Prices or valuation models that require inputs that are both significant to the fair value measurement and less observable from objective sources (i.e., supported by little or no market activity). The Company’s valuation models are primarily industry-standard models that consider various inputs including: (i) quoted forward prices for commodities, (ii) time value, (iii) volatility factors and (iv) current market and contractual prices for the underlying instruments, as well as other relevant economic measures.

11

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Financial Assets and Liabilities Measured at Fair Value

The following table presents the carrying amounts and fair values of the Company’s financial instruments at June 30, 2017 and December 31, 2016:

			June 30, 2017				December 31, 2016
			Carrying		Fair		Carrying		Fair
(in millions)			Value		Value		Value		Value
	Assets:
		Derivative instruments	$	225	$	225	$	4	$	4
	Liabilities:
		Derivative instruments	$	-	$	-	$	178	$	178
		$600 million 5.5% senior notes due 2022 (a)	$	594	$	619	$	594	$	620
		$1,550 million 5.5% senior notes due 2023 (a)	$	1,554	$	1,597	$	1,555	$	1,621
		$600 million 4.375% senior notes due 2025 (a)	$	593	$	614	$	592	$	599
(a)	The carrying value includes associated deferred loan costs and any premium.

Cash and cash equivalents, accounts receivable, other current assets, accountspayable, interest payable and other current liabilities. The carrying amounts approximate fair value due to the short maturity of these instruments.

Senior notes. The fair values of the Company’s senior notes are based on quoted market prices. The debt securities are not actively traded and, therefore, are classified as Level 2 in the fair value hierarchy.

12

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Derivative instruments. The fair value of the Company’s derivative instruments is estimated by management considering various factors, including closing exchange and over-the-counter quotations and the time value of the underlying commitments. Financial assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of the fair value of assets and liabilities and their placement within the fair value hierarchy levels. The following tables summarize (i) the valuation of each of the Company’s financial instruments by required fair value hierarchy levels and (ii) the gross fair value by the appropriate balance sheet classification,even when the derivative instruments are subject to netting arrangements and qualify for net presentation in the Company’s consolidated balance sheets at June 30, 2017 and December 31, 2016. The Company nets the fair value of derivative instruments by counterparty in the Company’s consolidated balance sheets.

June 30, 2017
				Fair Value Measurements Using												Net
				Quoted Prices										Gross		Fair Value
				in Active				Significant						Amounts		Presented
				Markets for				Other		Significant				Offset in the		in the
				Identical				Observable		Unobservable				Consolidated		Consolidated
				Assets				Inputs		Inputs		Total		Balance		Balance
(in millions)				(Level 1)				(Level 2)		(Level 3)		Fair Value		Sheet		Sheet
	Assets:
		Current:
			Commodity derivatives		$	-	$	145	$	-	$	145	$	(10)	$	135
		Noncurrent:
			Commodity derivatives			-		94		-		94		(4)		90
	Liabilities:
		Current:
			Commodity derivatives			-		(10)		-		(10)		10		-
		Noncurrent:
			Commodity derivatives			-		(4)		-		(4)		4		-
	Net derivative instruments				$	-	$	225	$	-	$	225	$	-	$	225

13

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

December 31, 2016
				Fair Value Measurements Using												Net
				Quoted Prices										Gross		Fair Value
				in Active				Significant						Amounts		Presented
				Markets for				Other		Significant				Offset in the		in the
				Identical				Observable		Unobservable				Consolidated		Consolidated
				Assets				Inputs		Inputs		Total		Balance		Balance
(in millions)				(Level 1)				(Level 2)		(Level 3)		Fair Value		Sheet		Sheet
	Assets:
		Current:
			Commodity derivatives		$	-	$	59	$	-	$	59	$	(55)	$	4
		Noncurrent:
			Commodity derivatives			-		-		-		-		-		-
	Liabilities:
		Current:
			Commodity derivatives			-		(137)		-		(137)		55		(82)
		Noncurrent:
			Commodity derivatives			-		(96)		-		(96)		-		(96)
	Net derivative instruments				$	-	$	(174)	$	-	$	(174)	$	-	$	(174)

Concentrations of credit risk.At June 30, 2017, the Company’s primary concentrations of credit risk are the risk of collecting accounts receivable and the risk of counterparties’ failure to perform under derivative obligations.

The Company has entered into International Swap Dealers Association Master Agreements (“ISDA Agreements”) with each of its derivative counterparties. The terms of the ISDA Agreements provide the Company and the counterparties with rights of set-off upon the occurrence of defined acts of default by either the Company or a counterparty to a derivative, whereby the party not in default may set off all derivative liabilities owed to the defaulting party against all derivative asset receivables from the defaulting party. See Note 7 for additional information regarding the Company’s derivative activities and counterparties.

14

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Certain assets and liabilities are reported at fair value on a nonrecurring basis in the Company’s consolidated balance sheets. The following methods and assumptions were used to estimate the fair values:

Impairments of long-lived assets – The Company periodically reviews its long-lived assets to be held and used, including proved oil and natural gas properties and their integrated assets, whenever events or circumstances indicate that the carrying value of those assets may not be recoverable, for instance when there are declines in commodity prices or well performance. The Company reviews its oil and natural gas properties by depletion base. An impairment loss is indicated if the sum of the expected undiscounted future net cash flows is less than the carrying amount of the assets. If the estimated undiscounted future net cash flows are less than the carrying amount of the Company’s assets, it recognizes an impairment loss for the amount by which the carrying amount of the asset exceeds the estimated fair value of the asset.

The Company calculates the expected undiscounted future net cash flows of its long-lived assets and their integrated assets using management’s assumptions and expectations of (i) commodity prices, which are based on the New York Mercantile Exchange (“NYMEX”) strip, (ii) pricing adjustments for differentials, (iii) production costs, (iv) capital expenditures, (v) production volumes, (vi) estimated proved reserves and risk-adjusted probable and possible reserves, and (vii) prevailing market rates of income and expenses from integrated assets. At June 30, 2017, the Company’s estimates of commodity prices for purposes of determining undiscounted future cash flows, which are based on the NYMEX strip, ranged from a 2017 price of $45.26 per barrel of oil to a 2024 price of $53.68 per barrel of oil. Similarly, natural gas prices ranged from a 2017 price of $3.16 per Mcf of natural gas decreasing to a 2020 price of $2.83 per Mcf partially recovering to a 2024 price of $3.03 per Mcf of natural gas. Commodity prices for this purpose were held flat after 2024.

The Company calculates the estimated fair values of its long-lived assets and their integrated assets using a discounted future cash flow model. Fair value assumptions associated with the calculation of discounted future net cash flows include (i) market estimates of commodity prices, (ii) pricing adjustments for differentials, (iii) production costs, (iv) capital expenditures, (v) production volumes, (vi) estimated proved reserves and risk-adjusted probable and possible reserves, (vii) prevailing market rates of income and expenses from integrated assets and (viii) a discount rate. The expected future net cash flows were discounted using an annual rate of 10 percent to determine fair value. These are classified as Level 3 fair value assumptions.

During the three months ended March 31, 2016, NYMEX strip prices declined as compared to December 31, 2015, and as a result the carrying amount of the Company’s Yeso field of approximately $3.4 billion exceeded the expected undiscounted future net cash flows resulting in a non-cash charge against earnings of approximately $1.5 billion. The non-cash charge represented the amount by which the carrying amount exceeded the estimated fair value of the assets.

The following table reports the carrying amount, estimated fair value and impairment expense of long-lived assets for the indicated period:

				Estimated
		Carrying		Fair Value		Impairment
(in millions)		Amount		(Level 3)		Expense
March 2016	$	3,438	$	1,913	$	1,525

It is reasonably possible that the estimate of undiscounted future net cash flows of the Company’s long-lived assets may change in the future resulting in the need to impair carrying values. The primary factors that may affect estimates of future cash flows are (i) commodity prices including differentials, (ii) increases or decreases in production and capital costs, (iii)

15

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

future reserve volume adjustments, both positive and negative, to proved reserves and appropriate risk-adjusted probable and possible reserves, (iv) results of future drilling activities and (v) changes in income and expenses from integrated assets.

Note 7. Derivative financial instruments

The Company uses derivative financial instruments to manage its exposure to commodity price fluctuations. Commodity derivative instruments are used to (i) reduce the effect of the volatility of price changes on the oil and natural gas the Company produces and sells, (ii) support the Company’s capital budget and expenditure plans and (iii) support the economics associated with acquisitions. The Company does not enter into derivative financial instruments for speculative or trading purposes. The Company also enters into fixed-price forward physical power purchase contracts to manage the volatility of the price of power needed for ongoing operations. The Company may also enter into physical delivery contracts to effectively provide commodity price hedges. Because these physical contracts are not expected to be net cash settled, the Company has elected normal purchase or normal sale treatment and are thus recorded at cost.

The Company does not designate its derivative instruments to qualify for hedge accounting. Accordingly, the Company reflects changes in the fair value of its derivative instruments in its consolidated statements of operations as they occur.

The following table summarizes the amounts reported in earnings related to the commodity derivative instruments for the three and six months ended June 30, 2017 and 2016:

			Three Months Ended				Six Months Ended
			June 30,				June 30,
(in millions)				2017		2016		2017		2016
Gain (loss) on derivatives:
	Oil derivatives		$	199	$	(281)	$	465	$	(209)
	Natural gas derivatives			10		(17)		30		(8)
		Total	$	209	$	(298)	$	495	$	(217)
The following table represents the Company’s net cash receipts from (payments on) derivatives for the three and six months ended June 30, 2017 and 2016:
			Three Months Ended				Six Months Ended
			June 30,				June 30,
(in millions)				2017		2016		2017		2016
Net cash receipts from (payments on) derivatives:
	Oil derivatives		$	70	$	160	$	101	$	412
	Natural gas derivatives			(2)		8		(5)		15
		Total	$	68	$	168	$	96	$	427

16

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Commodity derivative contracts at June 30, 2017. The following table sets forth the Company’s outstanding derivative contracts at June 30, 2017. When aggregating multiple contracts, the weighted average contract price is disclosed. All of the Company’s derivative contracts at June 30, 2017 are expected to settle by December 31, 2019.

				First		Second		Third		Fourth
				Quarter		Quarter		Quarter		Quarter		Total
Oil Price Swaps: (a)
	2017:
		Volume (Bbl)						7,966,370		7,188,080		15,154,450
		Price per Bbl					$	51.69	$	51.87	$	51.77
	2018:
		Volume (Bbl)		6,581,629		6,131,170		5,765,318		5,455,007		23,933,124
		Price per Bbl	$	52.01	$	51.84	$	51.68	$	51.54	$	51.78
	2019:
		Volume (Bbl)		3,772,000		3,604,000		3,460,000		3,324,000		14,160,000
		Price per Bbl	$	53.60	$	53.58	$	53.59	$	53.61	$	53.59
Oil Basis Swaps: (b)
	2017:
		Volume (Bbl)						6,302,000		6,302,000		12,604,000
		Price per Bbl					$	(0.57)	$	(0.57)	$	(0.57)
	2018:
		Volume (Bbl)		6,586,000		6,156,000		5,765,000		5,488,000		23,995,000
		Price per Bbl	$	(1.05)	$	(1.04)	$	(1.04)	$	(1.04)	$	(1.04)
	2019:
		Volume (Bbl)		3,771,000		3,609,000		3,434,000		3,311,000		14,125,000
		Price per Bbl	$	(1.18)	$	(1.18)	$	(1.19)	$	(1.19)	$	(1.19)
Natural Gas Price Swaps: (c)
	2017:
		Volume (MMBtu)						15,895,441		14,673,000		30,568,441
		Price per MMBtu					$	3.12	$	3.10	$	3.11
	2018:
		Volume (MMBtu)		11,156,000		10,641,000		10,219,000		9,904,000		41,920,000
		Price per MMBtu	$	3.06	$	3.05	$	3.05	$	3.04	$	3.05
	2019:
		Volume (MMBtu)		2,791,533		2,681,387		2,578,537		2,489,535		10,540,992
		Price per MMBtu	$	2.86	$	2.85	$	2.85	$	2.85	$	2.85
(a) The index prices for the oil price swaps are based on the NYMEX – West Texas Intermediate (“WTI”) monthly average futures price.
(b) The basis differential price is between Midland – WTI and Cushing – WTI.
(c) The index prices for the natural gas price swaps are based on the NYMEX – Henry Hub last trading day futures price.

Derivative counterparties.  The Company uses credit and other financial criteria to evaluate the creditworthiness of counterparties to its derivative instruments. The Company believes that all of its derivative counterparties are currently acceptable credit risks. Other than provided by the Company’s credit facility, the Company is not required to provide credit support or collateral to any counterparties under its derivative contracts, nor are they required to provide credit support to the Company. Under the terms of the Company’s credit facility, certain events could occur that would cause any obligations under the Company’s credit facility to no longer be secured by the Company’s oil and natural gas properties.

At June 30, 2017, the Company had a net asset position of $225 million as a result of outstanding derivative contracts which are reflected in the accompanying consolidated balance sheets. The Company assessed this balance for concentration

17

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

risk and noted balances of approximately $32 million, $32 million, $24 million, $22 million and $20 million with Wells Fargo Bank, N.A., J.P. Morgan Chase Bank, Citibank, N.A., ING Bank and Societe Generale, respectively.

Note 8. Debt 

The Company’s debt consisted of the following at June 30, 2017 and December 31, 2016:

				June 30,		December 31,
(in millions)				2017		2016
Credit facility			$	-	$	-
5.5% unsecured senior notes due 2022				600		600
5.5% unsecured senior notes due 2023				1,550		1,550
4.375% unsecured senior notes due 2025				600		600
Unamortized original issue premium				21		22
Senior notes issuance costs, net				(30)		(31)
	Less: current portion			-		-
		Total long-term debt	$	2,741	$	2,741

Credit facility. In April 2017, the Company amended its credit facility to extend the maturity date, decrease unused lender commitments and increase the borrowing base. As a result, the Company recorded a loss on extinguishment of debt of approximately $1 million for the three and six months ended June 30, 2017, representing the proportional amount of unamortized deferred loan costs associated with banks that are no longer in the credit facility syndicate.The Company’s credit facility, as amended and restated, has a maturity date of May 9, 2022. At June 30, 2017, the Company’s commitments from its bank group were $2.0 billion and its borrowing base was $3.0 billion.

Senior notes. Interest on the Company’s senior notes is paid in arrears semi-annually. The senior notes are fully and unconditionally guaranteed on a senior unsecured basis by all subsidiaries of the Company, subject to customary release provisions as described in Note 13.

At June 30, 2017, the Company was in compliance with the covenants under all of its debt instruments.

Principal maturities of long-term debt.Principal maturities of long-term debt outstanding at June 30, 2017 were as follows:

(in millions)
Remaining 2017		$	-
2018			-
2019			-
2020			-
2021			-
2022			600
Thereafter			2,150
	Total	$	2,750

18

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Interest expense.  The following amounts have been incurred and charged to interest expense for the three and six months ended June 30, 2017 and 2016:

		Three Months Ended				Six Months Ended
		June 30,				June 30,
(in millions)			2017		2016		2017		2016
Cash payments for interest		$	4	$	64	$	65	$	106
Non-cash interest			1		1		4		4
Net changes in accruals			34		(10)		10		(1)
	Total interest expense	$	39	$	55	$	79	$	109

Note 9. Commitments and contingencies

Legal actions.  The Company is a party to proceedings and claims incidental to its business. While many of these matters involve inherent uncertainty, the Company believes that the amount of the liability, if any, ultimately incurred with respect to any such proceedings or claims will not have a material adverse effect on the Company’s consolidated financial position as a whole or on its liquidity, capital resources or future results of operations. The Company will continue to evaluate proceedings and claims involving the Company on a regular basis and will establish and adjust any reserves as appropriate to reflect its assessment of the then current status of the matters.

Severance tax, royalty and joint interest audits.  The Company is subject to routine severance, royalty and joint interest audits from regulatory bodies and non-operators and makes accruals as necessary for estimated exposure when deemed probable and estimable. Additionally, the Company is subject to various possible contingencies that arise primarily from interpretations affecting the oil and natural gas industry. Such contingencies include differing interpretations as to the prices at which oil and natural gas sales may be made, the prices at which royalty owners may be paid for production from their leases, allowable costs under joint interest arrangements and other matters. At December 31, 2016, the Company had $7 million accrued for estimated exposure that has since been satisfied. Although the Company believes that it has estimated its exposure with respect to the various laws and regulations, administrative rulings and interpretations thereof, adjustments could be required as new interpretations and regulations are issued. 

19

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Commitments. The Company periodically enters into contractual arrangements under which the Company is committed to expend funds. These contractual arrangements relate to purchase agreements the Company has entered into including drilling commitments, water commitment agreements, throughput volume delivery commitments, power commitments, fixed asset commitments and maintenance commitments. The following table summarizes the Company’s commitments at June 30, 2017:

(in millions)
Remaining 2017		$	24
2018			51
2019			53
2020			26
2021			22
2022			23
Thereafter			84
	Total	$	283

Operating leases. The Company leases vehicles, equipment and office facilities under non-cancellable operating leases. Lease payments associated with these operating leases for the three months ended June 30, 2017 and 2016 were approximately $3 million and $2 million, respectively, and approximately $5 million and $4 million for the six months ended June 30, 2017 and 2016, respectively.

Future minimum lease commitments under non-cancellable operating leases at June 30, 2017 were as follows:

(in millions)
Remaining 2017		$	5
2018			9
2019			7
2020			6
2021			4
2022			-
Thereafter			1
	Total	$	32

Note 10. Income taxes

The effective income tax rates were 37.8 percent and 37.3 percent for the three months ended June 30, 2017 and 2016, respectively, and 36.6 percent and 36.9 percent for the six months ended June 30, 2017 and 2016, respectively. Total income tax expense for the three and six months ended June 30, 2017 differed from amounts computed by applying the United States federal statutory tax rates to pre-tax income primarily due to state income taxes and the impact of permanent differences between book and taxable income. The Company recorded discrete income tax expense of approximately $2 million and a discrete income tax benefit of approximately $6 million for the three and six months ended June 30, 2017, respectively, related to excess tax deficiencies (benefits) on stock-based awards, which are recorded in the income tax provision pursuant to ASU No. 2016-09, which was adopted on January 1, 2017. Total income tax benefit for the three and six months ended June 30, 2016 differed from amounts computed by applying the United States federal statutory tax rates to pre-tax loss primarily due to state income taxes, partially offset by the impact of permanent differences between book and taxable loss.

20

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Note 11. Related party transactions

The Company paid royalties on certain properties to a partnership in which a director of the Company is the general partner and owns a 3.5 percent partnership interest. These payments were reported in the Company’s consolidated statements of operations and totaled approximately $2 million and $1 million for the three months ended June 30, 2017 and 2016, respectively, and approximately $4 million and $2 million for the six months ended June 30, 2017 and 2016, respectively.

Note 12. Earnings per share

The Company uses the two-class method of calculating earnings per share because certain of the Company’s unvested share-based awards qualify as participating securities.

The Company’s basic earnings per share attributable to common stockholders is computed as (i) net income (loss) as reported, (ii) less participating basic earnings (iii) divided by weighted average basic common shares outstanding. The Company’s diluted earnings per share attributable to common stockholders is computed as (i) basic earnings attributable to common stockholders, (ii) plus reallocation of participating earnings (iii) divided by weighted average diluted common shares outstanding.

The following table reconciles the Company’s earnings from operations and earnings attributable to common stockholders to the basic and diluted earnings used to determine the Company’s earnings per share amounts for the three and six months ended June 30, 2017 and 2016, respectively, under the two-class method:

				Three Months Ended				Six Months Ended
			June 30,				June 30,
(in millions)			2017		2016		2017		2016
Net income (loss) as reported			$	152	$	(266)	$	802	$	(1,286)
Participating basic earnings (a)				(1)		-		(6)		-
	Basic earnings attributable to common stockholders			151		(266)		796		(1,286)
Reallocation of participating earnings				-		-		-		-
	Diluted earnings attributable to common stockholders		$	151	$	(266)	$	796	$	(1,286)
(a)		Unvested restricted stock awards represent participating securities because they participate in nonforfeitable dividends or distributions with the common equity holders of the Company. Participating earnings represent the distributed earnings of the Company attributable to the participating securities. Unvested restricted stock awards do not participate in undistributed net losses as they are not contractually obligated to do so.

21

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

The following table is a reconciliation of the basic weighted average common shares outstanding to diluted weighted average common shares outstanding for the three and six months ended June 30, 2017 and 2016:

			Three Months Ended		Six Months Ended
			June 30,		June 30,
(in thousands)			2017	2016	2017	2016
Weighted average common shares outstanding:
	Basic		147,304	130,400	147,071	129,398
		Dilutive common stock options	-	-	6	-
		Dilutive performance units	462	-	581	-
	Diluted		147,766	130,400	147,658	129,398

The following table is a summary of the performance units that were not included in the computation of diluted earnings per share, as inclusion of these items would be antidilutive:

		Three Months Ended		Six Months Ended
		June 30,		June 30,
(in thousands)		2017	2016	2017	2016
Number of antidilutive units:
	Antidilutive performance units	107	-	108	-

Performance unit awards. The number of shares of common stock that will ultimately be issued for performance units will be determined by a combination of (i) comparing the Company’s total shareholder return relative to the total shareholder return of a predetermined group of peer companies at the end of the performance period and (ii) the Company’s absolute total shareholder return at the end of the performance period. The performance period is 36 months. The actual payout of shares will be between zero and 300 percent.

22

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Note 13. Subsidiary guarantors

All of the Company’s 100 percent owned subsidiaries have fully and unconditionally guaranteed the Company’s senior notes. The indentures governing the Company’s senior notes provide that the guarantees of its subsidiary guarantors will be released in certain customary circumstances including (i) in connection with any sale, exchange or other disposition, whether by merger, consolidation or otherwise, of the capital stock of that guarantor to a person that is not the Company or a restricted subsidiary of the Company, such that, after giving effect to such transaction, such guarantor would no longer constitute a subsidiary of the Company, (ii) in connection with any sale, exchange or other disposition (other than a lease) of all or substantially all of the assets of that guarantor to a person that is not the Company or a restricted subsidiary of the Company, (iii) upon the merger of a guarantor into the Company or any other guarantor or the liquidation or dissolution of a guarantor, (iv) if the Company designates any restricted subsidiary that is a guarantor to be an unrestricted subsidiary in accordance with the indenture, (v) upon legal defeasance or satisfaction and discharge of the indenture and (vi) upon written notice of such release or discharge by the Company to the trustee following the release or discharge of all guarantees by such guarantor of any indebtedness that resulted in the creation of such guarantee, except a discharge or release by or as a result of payment under such guarantee.

See Note 8 for a summary of the Company’s senior notes. In accordance with practices accepted by the United States Securities and Exchange Commission, the Company has prepared condensed consolidating financial statements in order to quantify the assets, results of operations and cash flows of such subsidiaries as subsidiary guarantors.

The following condensed consolidating balance sheets at June 30, 2017 and December 31, 2016, condensed consolidating statements of operations for the three and six months ended June 30, 2017 and 2016 and condensed consolidating statements of cash flows for the six months ended June 30, 2017 and 2016, present financial information for Concho Resources Inc. as the parent on a stand-alone basis (carrying any investments in subsidiaries under the equity method), financial information for the subsidiary guarantors on a stand-alone basis and the consolidation and elimination entries necessary to arrive at the information for the Company on a consolidated basis. All current and deferred income taxes are recorded on Concho Resources Inc., as the subsidiaries are flow-through entities for income tax purposes. The subsidiary guarantors are not restricted from making distributions to the Company.

23

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Condensed Consolidating Balance Sheet
June 30, 2017
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
ASSETS
Accounts receivable - related parties		$	8,986	$	(639)	$	(8,347)	$	-
Other current assets			167		1,137		-		1,304
Oil and natural gas properties, net			-		11,806		-		11,806
Property and equipment, net			-		234		-		234
Investment in subsidiaries			2,831		-		(2,831)		-
Other long-term assets			105		142		-		247
	Total assets	$	12,089	$	12,680	$	(11,178)	$	13,591
LIABILITIES AND EQUITY
Accounts payable - related parties		$	(639)	$	8,986	$	(8,347)	$	-
Other current liabilities			46		720		-		766
Long-term debt			2,741		-		-		2,741
Other long-term liabilities			1,212		143		-		1,355
Equity			8,729		2,831		(2,831)		8,729
	Total liabilities and equity	$	12,089	$	12,680	$	(11,178)	$	13,591

Condensed Consolidating Balance Sheet
December 31, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
ASSETS
Accounts receivable - related parties		$	8,991	$	(336)	$	(8,655)	$	-
Other current assets			12		534		-		546
Oil and natural gas properties, net			-		11,086		-		11,086
Property and equipment, net			-		216		-		216
Investment in subsidiaries			1,989		-		(1,989)		-
Other long-term assets			11		260		-		271
	Total assets	$	11,003	$	11,760	$	(10,644)	$	12,119
LIABILITIES AND EQUITY
Accounts payable - related parties		$	(336)	$	8,991	$	(8,655)	$	-
Other current liabilities			114		639		-		753
Long-term debt			2,741		-		-		2,741
Other long-term liabilities			861		141		-		1,002
Equity			7,623		1,989		(1,989)		7,623
	Total liabilities and equity	$	11,003	$	11,760	$	(10,644)	$	12,119

24

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Condensed Consolidating Statement of Operations
Three Months Ended June 30, 2017
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	567	$	-	$	567
Total operating costs and expenses			210		(508)		-		(298)
	Income from operations		210		59		-		269
Interest expense			(38)		(1)		-		(39)
Loss on extinguishment of debt			(1)		-		-		(1)
Other, net			74		16		(74)		16
	Income before income taxes		245		74		(74)		245
Income tax expense			(93)		-		-		(93)
	Net income	$	152	$	74	$	(74)	$	152

Condensed Consolidating Statement of Operations
Three Months Ended June 30, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	396	$	-	$	396
Total operating costs and expenses			(297)		(468)		-		(765)
	Loss from operations		(297)		(72)		-		(369)
Interest expense			(54)		(1)		-		(55)
Other, net			(73)		-		73		-
	Loss before income taxes		(424)		(73)		73		(424)
Income tax benefit			158		-		-		158
	Net loss	$	(266)	$	(73)	$	73	$	(266)

25

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Condensed Consolidating Statement of Operations
Six Months Ended June 30, 2017
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	1,179	$	-	$	1,179
Total operating costs and expenses			495		(344)		-		151
	Income from operations		495		835		-		1,330
Interest expense			(78)		(1)		-		(79)
Loss on extinguishment of debt			(1)		-		-		(1)
Other, net			850		16		(850)		16
	Income before income taxes		1,266		850		(850)		1,266
Income tax expense			(464)		-		-		(464)
	Net income	$	802	$	850	$	(850)	$	802

Condensed Consolidating Statement of Operations
Six Months Ended June 30, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	680	$	-	$	680
Total operating costs and expenses			(218)		(2,384)		-		(2,602)
	Loss from operations		(218)		(1,704)		-		(1,922)
Interest expense			(107)		(2)		-		(109)
Other, net			(1,713)		(7)		1,713		(7)
	Loss before income taxes		(2,038)		(1,713)		1,713		(2,038)
Income tax benefit			752		-		-		752
	Net loss	$	(1,286)	$	(1,713)	$	1,713	$	(1,286)

26

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Condensed Consolidating Statement of Cash Flows
Six Months Ended June 30, 2017
			Parent		Subsidiary	Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Net cash flows provided by operating activities		$	28	$	777	$	-	$	805
Net cash flows used in investing activities			-		(168)		-		(168)
Net cash flows used in financing activities			(28)		-		-		(28)
	Net increase in cash and cash equivalents		-		609		-		609
	Cash and cash equivalents at beginning of period		-		53		-		53
	Cash and cash equivalents at end of period	$	-	$	662	$	-	$	662

Condensed Consolidating Statement of Cash Flows
Six Months Ended June 30, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Net cash flows provided by operating activities		$	12	$	664	$	-	$	676
Net cash flows used in investing activities			-		(412)		-		(412)
Net cash flows used in financing activities			(12)		-		-		(12)
	Net increase in cash and cash equivalents		-		252		-		252
	Cash and cash equivalents at beginning of period		-		229		-		229
	Cash and cash equivalents at end of period	$	-	$	481	$	-	$	481

27

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Note 14. Subsequent events

Midland Basin acquisition.In July 2017, the Company completed an acquisition in the Midland Basin. As consideration for the acquisition, the Company paid approximately $600 million in cash, of which $60 million was held in escrow at June 30, 2017 with the remaining $540 million paid in July 2017. The acquisition is subject to customary post-closing adjustments.

New commodity derivative contracts.After June 30, 2017, the Company entered into the following oil price swaps and oil basis swaps to hedge additional amounts of the Company’s estimated future production:

				First		Second		Third		Fourth
				Quarter		Quarter		Quarter		Quarter		Total
Oil Price Swaps: (a)
	2017:
		Volume (Bbl)						1,253,000		1,354,000		2,607,000
		Price per Bbl					$	47.76	$	47.73	$	47.74
	2018:
		Volume (Bbl)		1,059,000		869,000		747,000		669,000		3,344,000
		Price per Bbl	$	48.33	$	48.26	$	48.20	$	48.15	$	48.25
	2019:
		Volume (Bbl)		1,002,000		940,000		885,000		845,000		3,672,000
		Price per Bbl	$	49.26	$	49.24	$	49.27	$	49.26	$	49.26
Oil Basis Swaps: (b)
	2017:
		Volume (Bbl)						915,000		1,380,000		2,295,000
		Price per Bbl					$	(1.28)	$	(1.28)	$	(1.28)
	2018:
		Volume (Bbl)		630,000		637,000		644,000		644,000		2,555,000
		Price per Bbl	$	(1.11)	$	(1.11)	$	(1.11)	$	(1.11)	$	(1.11)
	2019:
		Volume (Bbl)		810,000		819,000		828,000		828,000		3,285,000
		Price per Bbl	$	(1.12)	$	(1.12)	$	(1.12)	$	(1.12)	$	(1.12)
(a)	The index prices for the oil price swaps are based on the NYMEX – WTI monthly average futures price.
(b)	The basis differential price is between Midland – WTI and Cushing – WTI.

28

Concho Resources Inc.

Condensed Notes to Consolidated Financial Statements

June 30, 2017

Unaudited

Note 15. Supplementary information

Capitalized costs

			June 30,		December 31,
(in millions)			2017		2016
Oil and natural gas properties:
	Proved		$	17,364	$	16,620
	Unproved			2,346		1,856
	Less: accumulated depletion			(7,904)		(7,390)
		Net capitalized costs for oil and natural gas properties	$	11,806	$	11,086

Costs incurred for oil and natural gas producing activities

		Three Months Ended				Six Months Ended
		June 30,				June 30,
(in millions)		2017		2016		2017		2016
Property acquisition costs:
	Proved	$	12	$	4	$	139	$	256
	Unproved		87		19		393		158
Exploration			238		165		473		336
Development			145		107		303		190
	Total costs incurred for oil and natural gas properties	$	482	$	295	$	1,308	$	940

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

The following discussion is intended to assist you in understanding our business and results of operations together with our present financial condition. This section should be read in conjunction with our historical consolidated financial statements and notes.

Certain statements in our discussion below are forward-looking statements. These forward-looking statements involve risks and uncertainties. We caution that a number of factors could cause actual results to differ materially from those implied or expressed by the forward-looking statements. Please see “Cautionary Statement Regarding Forward-Looking Statements.”

Overview

We are an independent oil and natural gas company engaged in the acquisition, development, exploration and production of oil and natural gas properties. Our core operations are primarily focused in the Permian Basin of southeast New Mexico and west Texas. Concho’s legacy in the Permian Basin provides us a deep understanding of operating and geological trends. We are actively applying new technologies, such as extended length lateral drilling, multi-well pad development and enhanced completion techniques, throughout our four core operating areas: the Northern Delaware Basin, the Southern Delaware Basin, the Midland Basin and the New Mexico Shelf. Oil comprised 59 percent of our 720 MMBoe of estimated proved reserves at December 31, 2016 and 62 percent of our 183,036 Boe of average daily production for the six months ended June 30, 2017. We seek to operate the wells in which we own an interest, and we operated wells that accounted for 92 percent of our proved developed producing reserves and 79 percent of our 7,858 gross wells at December 31, 2016. By controlling operations, we are able to more effectively manage the cost and timing of exploration and development of our properties, including the drilling and stimulation methods used.

Financial and Operating Performance

Our financial and operating performance for the six months ended June 30, 2017 and 2016 included the following highlights:

·Net income was $802 million ($5.39per diluted share) as compared to net loss of $1.3billion ($(9.94)per diluted share) for the first six months of 2017 and 2016, respectively. The increase was primarily due to:

•no recorded impairments of long-lived assets during the six months ended June 30, 2017, as compared to $1.5 billion in non-cash impairment charges in 2016,  primarily attributable to properties in our New Mexico Shelf area;

•$712  million change in (gain) loss on derivatives due to a $495 million gain on derivatives during the six months ended June 30, 2017, as compared to a $217 million loss on derivatives during 2016;

•gain on disposition of assets, net increased $544 million primarily due to our disposition of Alpha Crude Connector, LLC (“ACC”) which resulted in a gain of approximately $655 million during the six months ended June 30, 2017, as compared to a gain of approximately $110 million during 2016 primarily attributable to our Northern Delaware Basin divestiture in February 2016;

•$499 million increase in oil and natural gas revenues as a result of a 36 percent increase in commodity price realizations per Boe (excluding the effects of derivative activities) and a 29percent increase in production; and

•$27 million decrease in depreciation, depletion and amortization expense, primarily due to a decrease in the depletion rate per Boe period over period, partially offset by an increase in production;

partially offset by:

•$1.2 billion change in our income tax provision due to income before income taxes during the six months ended June 30, 2017, as compared to a loss before income taxes during 2016; and

30

•$36 million increase in production and ad valorem tax expense, primarily due to increased production taxes as a result of increased oil and natural gas sales.

·Average daily sales volumes of 183,036 Boe per day during the first six months of 2017 increased 29 percent as compared to 142,319 Boe per day during 2016.

·Net cash provided by operating activities increased by approximately $129 million to $805 million for the first six months of 2017, as compared to $676 million in the first six months of 2016, primarily due to an increase in oil and natural gas revenues and decreased cash interest expense, partially offset by (i) a decrease in cash settlements on derivatives, (ii) increased production tax expense, (iii) changes related to cash income taxes and (iv) increased production expense.

·Cash increased by approximately $609 million during the first six months of 2017 primarily as a result of proceeds from our February 2017 divestiture of ACC. In July 2017, we paid approximately $540 million in cash as partial consideration for our Midland Basin acquisition.

Commodity Prices

Our results of operations are heavily influenced by commodity prices. Commodity prices may fluctuate widely in response to (i) relatively minor changes in the supply of and demand for oil, natural gas and natural gas liquids, (ii) market uncertainty and (iii) a variety of additional factors that are beyond our control. Factors that may impact future commodity prices, including the price of oil, natural gas and natural gas liquids, include, but are not limited to:

·continuing economic uncertainty worldwide;

·political and economic developments in oil and natural gas producing regions, including Africa, South America and the Middle East;

·the extent to which members of the Organization of Petroleum Exporting Countries and other oil exporting nations are able to influence global oil supply levels;

·technological advances affecting energy consumption and energy supply;

·domestic and foreign governmental regulations, including limits on the United States’ ability to export crude oil, and taxation;

·the level of global inventories;

·the proximity, capacity, cost and availability of pipelines and other transportation facilities, as well as the availability of commodity processing and gathering and refining capacity;

·risks related to the concentration of our operations in the Permian Basin of southeast New Mexico and west Texas and the level of commodity inventory in the Permian Basin;

·the quality of the oil we produce;

·the overall global demand for oil, natural gas and natural gas liquids;

·the domestic and foreign supply of oil, natural gas and natural gas liquids;

·political and economic events that directly or indirectly impact the relative strength or weakness of the United States dollar, on which oil prices are benchmarked globally, against foreign currencies;

·the effect of energy conservation efforts;

·the price and availability of alternative fuels; and

·overall North American oil, natural gas and natural gas liquids supply and demand fundamentals, including:

•the United States economy,

•weather conditions, and

31

•liquefied natural gas deliveries to and exports from the United States.

Although we cannot predict the occurrence of events that may affect future commodity prices or the degree to which these prices will be affected, the prices for any commodity that we produce will generally approximate current market prices in the geographic region of the production. From time to time, we expect that we may economically hedge a portion of our commodity price risk to mitigate the impact of price volatility on our business. See Notes 7 and 14 of the Condensed Notes to Consolidated Financial Statements included in “Item 1. Consolidated Financial Statements (Unaudited)” for additional information regarding our commodity derivative positions at June 30, 2017 and additional derivative contracts entered into subsequent to June 30, 2017, respectively.

Oil and natural gas prices have been subject to significant fluctuations during the past several years. The average oil and natural gas prices were higher during the comparable periods of 2017 measured against 2016. The following table sets forth the average New York Mercantile Exchange (“NYMEX”) oil and natural gas prices for the three and six months ended June 30, 2017 and 2016, as well as the high and low NYMEX prices for the same periods:

			Three Months Ended				Six Months Ended
			June 30,				June 30,
			2017		2016		2017		2016
Average NYMEX prices:
	Oil (Bbl)		$	48.32	$	45.56	$	50.12	$	39.65
	Natural gas (MMBtu)		$	3.15	$	2.24	$	3.12	$	2.12
High and Low NYMEX prices:
	Oil (Bbl):
		High	$	53.40	$	51.23	$	54.45	$	51.23
		Low	$	42.53	$	35.70	$	42.53	$	26.21
	Natural gas (MMBtu):
		High	$	3.42	$	2.92	$	3.72	$	2.92
		Low	$	2.89	$	1.90	$	2.56	$	1.64

Further, the NYMEX oil price and NYMEX natural gas price reached highs and lows of $50.17 and $44.23 per Bbl and $3.09 and $2.79 per MMBtu, respectively, during the period from July 1, 2017 to July 31, 2017. At July 31, 2017, the NYMEX oil price and NYMEX natural gas price were $50.17 per Bbl and $2.79 per MMBtu, respectively.

Historically, and during the six months ended June 30, 2017, we derived a significant portion of our total natural gas revenues from the value of the natural gas liquids contained in our natural gas, with the remaining portion coming from the value of the dry natural gas residue. The average Mont Belvieu price for a blended barrel of natural gas liquids was $21.99 per Bbl and $18.16 per Bbl during the three months ended June 30, 2017 and 2016, respectively, and $23.09 per Bbl and $16.32 per Bbl during the six months ended June 30, 2017 and 2016, respectively.

32

Recent Events

Midland Basin acquisition.In July 2017, we completed an acquisition in the Midland Basin. As consideration for the acquisition, we paid approximately $600 million in cash, of which $60 million was held in escrow at June 30, 2017 with the remaining $540 million paid in July 2017. The acquisition is subject to customary post-closing adjustments.

Northern Delaware Basin acquisition.In April 2017, we closed on the remainder of the acquisition in the Northern Delaware Basin. As consideration for the entire acquisition, we paid approximately $159 million in cash and issued to the seller approximately 2.2 million shares of our common stock with an approximate value of $291 million.

Credit Facility amendment. In April 2017, we amended our credit facility to extend the maturity date to May 9, 2022. Additionally, we increased our borrowing base to $3.0 billion and decreased the commitments from our bank group to $2.0 billion.

33

Derivative Financial Instruments

Derivative financial instrument exposure. At June 30, 2017, the fair value of our financial derivatives was a net asset of $225million. At June 30, 2017, all of our counterparties have their outstanding debt commitments and derivative exposures collateralized pursuant to our credit facility. At June 30, 2017, under the terms of our financial derivative instruments and their collateralization under our credit facility, we do not have exposure to potential “margin calls” on our financial derivative instruments. We currently have no reason to believe that our counterparties to these commodity derivative contracts are not financially viable. Under the terms of our credit facility, certain events could occur that would cause the obligations under our credit facility to no longer be secured by our oil and natural gas properties. Our credit facility does not allow us to offset amounts we may owe a lender against amounts we may be owed related to our financial instruments with such party.

New commodity derivative contracts. After June 30, 2017, we entered into the following oil price swaps and oil basis swaps to hedge additional amounts of our estimated future production:

				First		Second		Third		Fourth
				Quarter		Quarter		Quarter		Quarter		Total
Oil Price Swaps: (a)
	2017:
		Volume (Bbl)						1,253,000		1,354,000		2,607,000
		Price per Bbl					$	47.76	$	47.73	$	47.74
	2018:
		Volume (Bbl)		1,059,000		869,000		747,000		669,000		3,344,000
		Price per Bbl	$	48.33	$	48.26	$	48.20	$	48.15	$	48.25
	2019:
		Volume (Bbl)		1,002,000		940,000		885,000		845,000		3,672,000
		Price per Bbl	$	49.26	$	49.24	$	49.27	$	49.26	$	49.26
Oil Basis Swaps: (b)
	2017:
		Volume (Bbl)						915,000		1,380,000		2,295,000
		Price per Bbl					$	(1.28)	$	(1.28)	$	(1.28)
	2018:
		Volume (Bbl)		630,000		637,000		644,000		644,000		2,555,000
		Price per Bbl	$	(1.11)	$	(1.11)	$	(1.11)	$	(1.11)	$	(1.11)
	2019:
		Volume (Bbl)		810,000		819,000		828,000		828,000		3,285,000
		Price per Bbl	$	(1.12)	$	(1.12)	$	(1.12)	$	(1.12)	$	(1.12)
(a)	The index prices for the oil price swaps are based on the NYMEX – West Texas Intermediate (“WTI”) monthly  average futures price.
(b)	The basis differential price is between Midland – WTI and Cushing – WTI.

34

Results of Operations

The following table sets forth summary information concerning our production and operating data for the three and six months ended June 30, 2017 and 2016. The actual historical data in this table excludes results from our acquisition from Reliance Energy, Inc. (the “Reliance Acquisition”) for periods prior to October 2016. Because of normal production declines, increased or decreased drilling activities, fluctuations in commodity prices and the effects of our acquisitions or divestitures, the historical information presented below should not be interpreted as being indicative of future results.

					Three Months Ended				Six Months Ended
					June 30,				June 30,
					2017		2016		2017		2016
Production and operating data:
	Average daily production volumes:
		Oil (Bbl)				113,220		89,418		113,409		89,214
		Natural gas (Mcf)				428,769		334,440		417,762		318,632
		Total (Boe)				184,682		145,158		183,036		142,319
	Average prices per unit:
		Oil, without derivatives (Bbl)			$	44.75	$	41.68	$	46.91	$	35.80
		Oil, with derivatives (Bbl) (a)			$	51.60	$	61.46	$	51.86	$	61.18
		Natural gas, without derivatives (Mcf)			$	2.71	$	1.88	$	2.85	$	1.70
		Natural gas, with derivatives (Mcf) (a)			$	2.67	$	2.13	$	2.78	$	1.95
		Total, without derivatives (Boe)			$	33.73	$	30.00	$	35.57	$	26.25
		Total, with derivatives (Boe) (a)			$	37.84	$	42.78	$	38.48	$	42.72
	Operating costs and expenses per Boe:
		Oil and natural gas production			$	5.91	$	5.83	$	5.64	$	6.54
		Production and ad valorem taxes			$	2.62	$	2.51	$	2.77	$	2.15
		Depreciation, depletion and amortization			$	16.69	$	21.27	$	17.02	$	22.82
		General and administrative			$	3.70	$	4.04	$	3.54	$	4.14
	(a)	Includes the effect of net cash receipts from (payments on) derivatives:
					Three Months Ended				Six Months Ended
					June 30,				June 30,
		(in millions)			2017		2016		2017		2016
		Net cash receipts from (payments on) derivatives:
			Oil derivatives		$	70	$	160	$	101	$	412
			Natural gas derivatives			(2)		8		(5)		15
				Total	$	68	$	168	$	96	$	427
		The presentation of average prices with derivatives is a result of including the net cash receipts from (payments on) commodity derivatives that are presented in our statements of cash flows. This presentation of average prices with derivatives is a means by which to reflect the actual cash performance of our commodity derivatives for the respective periods and presents oil and natural gas prices with derivatives in a manner consistent with the presentation generally used by the investment community.

35

Three Months Ended June 30, 2017 Compared to Three Months Ended June 30, 2016

Oil and natural gas revenues.  Revenue from oil and natural gas operations was$567 million for the three months ended June 30, 2017, an increase of$171 million (43 percent) from $396 million for 2016. This increase was primarily due to the increase in oil and natural gas production as well as the increase in realized oil and natural gas prices (excluding the effects of derivative activities). Specific factors affecting oil and natural gas revenues include the following:

·average daily oil production was 113,220 Bbl  for the three months ended June 30, 2017, an increase  of 23,802 Bbl  (27 percent) from 89,418 Bbl  for 2016; 

·average realized oil price (excluding the effects of derivative activities) was $44.75 per Bbl during the three months ended June 30, 2017, an increase of 7 percent  from $41.68  per Bbl during 2016. For the three months ended June 30, 2017, our crude oil price differential relative to NYMEX was $(3.57) per Bbl, or a realization of approximately 93 percent, as compared to a crude oil price differential relative to NYMEX of $(3.88) per Bbl, or a realization of approximately 91 percent, for 2016. The basis differential between the location of Midland, Texas and Cushing, Oklahoma (NYMEX pricing location) for our oil directly impacts our realized oil price. For the three months ended June 30, 2017 and 2016, the average market basis differential between WTI-Midland and WTI-Cushing was a price reduction of $0.83 per Bbl and $0.17 per Bbl, respectively. Additionally, we incur fixed deductions from the posted Midland oil price based on the location of our oil within the Permian Basin. These fixed deductions were less per Boe during the three months ended June 30, 2017 as compared to 2016 primarily due to more production transported through pipelines;

·average daily natural gas production was 428,769 Mcf  for the three months ended June 30, 2017, an increase  of 94,329 Mcf  (28 percent) from 334,440 Mcf  for 2016; and

·average realized natural gas price (excluding the effects of derivative activities) was $2.71 per Mcf during the three months ended June 30, 2017, an increase of 44 percent  from $1.88 per Mcf during 2016. For the three months ended June 30, 2017 and 2016, we realized approximately 86 percent and 84 percent, respectively, of the average NYMEX natural gas prices for the respective periods. The increase in our realized natural gas price (excluding the effects of derivatives) as a percentage of NYMEX during the three months ended June 30, 2017 as compared to 2016 was primarily due to an increase in the average Mont Belvieu price for a blended barrel of natural gas liquids. Historically, and during the three months ended June 30, 2017, we derived a significant portion of our total natural gas revenues from the value of the natural gas liquids contained in our natural gas, with the remaining portion coming from the value of the dry natural gas residue. The average Mont Belvieu price for a blended barrel of natural gas liquids was $21.99 per Bbl and $18.16 per Bbl during the three months ended June 30, 2017 and 2016, respectively.

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Oil and natural gas production expenses.  The following table provides the components of our oil and natural gas production expenses for the three months ended June 30, 2017 and 2016:

			Three Months Ended June 30,
			2017				2016
				Per				Per
(in millions, except per unit amounts)		Amount		Boe		Amount		Boe
Lease operating expenses		$	96	$	5.66	$	73	$	5.47
Workover costs			4		0.25		4		0.36
	Total oil and natural gas production expenses	$	100	$	5.91	$	77	$	5.83

Lease operating expenses were $96 million ($5.66 per Boe) for the three months ended June 30, 2017, which was an increase of $23 million from $73 million ($5.47 per Boe) for the three months ended June 30, 2016. The increase in lease operating expenses during the second quarter of 2017 as compared to 2016 was primarily due to increased production associated with our wells successfully drilled and completed in 2016 and 2017 and our acquisitions during the second half of 2016 and first half of 2017.The increase in lease operating expenses per Boe was primarily due to the increase in lease operating expenses noted above including higher expenses per Boe on properties associated with our recent acquisitions in the second half of 2016 and first half of 2017.

Production and ad valorem taxes.  The following table provides the components of our production and ad valorem tax expenses for the three months ended June 30, 2017 and 2016:

			Three Months Ended June 30,
			2017				2016
				Per				Per
(in millions, except per unit amounts)		Amount		Boe		Amount		Boe
Production taxes		$	40	$	2.41	$	30	$	2.26
Ad valorem taxes			4		0.21		3		0.25
	Total production and ad valorem taxes	$	44	$	2.62	$	33	$	2.51

Production taxes per unit of production were $2.41 per Boe during the three months ended June 30, 2017, an increase of 7 percent from $2.26 per Boe during 2016. Over the same period, our revenue per Boe (excluding the effects of derivatives) increased 12 percent. The increase in production taxes per unit of production was directly related to the increase in oil and natural gas sales, partially offset by a higher percentage of our total production originating in Texas, which has a lower tax rate than New Mexico. Production taxes fluctuate with the market value of our production sold, while ad valorem taxes are generally based on the valuation of our oil and natural gas properties at the beginning of the year, which vary across the different areas in which we operate.

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Exploration and abandonments expense. The following table provides the components of our exploration and abandonments expense for the three months ended June 30, 2017 and 2016:

		Three Months Ended
		June 30,
(in millions)		2017		2016
Geological and geophysical		$	1	$	3
Exploratory dry hole costs			-		7
Leasehold abandonments			18		11
Other			1		-
	Total exploration and abandonments	$	20	$	21

Our geological and geophysical expense for the periods presented above primarily consists of the costs of acquiring and processing geophysical data and core analysis.

Our exploratory dry hole costs during the three months ended June 30, 2016 were primarily related to an uneconomic well in our Delaware Basin area that was attempting to establish commercial production through testing of multiple zones. We did not recognize any exploratory dry hole costs during the three months ended June 30, 2017.

For the three months ended June 30, 2017 and 2016, we recorded approximately $18 million and $11 million, respectively, of leasehold abandonments. For the three months ended June 30, 2017, our abandonments were primarily related to non-contiguous acreage expiring in our Southern Delaware Basin core area. For the three months ended June 30, 2016, our abandonments were primarily related to acreage in our Northern Delaware Basin core area where we identified (i) drilling locations which, based on multiple factors, are no longer likely to be drilled, (ii) acreage where we have no future development plans and (iii) expiring acreage.

Depreciation, depletion and amortization expense. The following table provides components of our depreciation, depletion and amortization expense for the three months ended June 30, 2017 and 2016:

		Three Months Ended June 30,
		2017				2016
				Per				Per
(in millions, except per unit amounts)		Amount		Boe		Amount		Boe
Depletion of proved oil and natural gas properties		$	274	$	16.34	$	276	$	20.84
Depreciation of other property and equipment			6		0.33		4		0.40
Amortization of intangible assets - operating rights			1		0.02		1		0.03
	Total depletion, depreciation and amortization	$	281	$	16.69	$	281	$	21.27
Oil price used to estimate proved oil reserves at period end		$	45.42			$	39.63
Natural gas price used to estimate proved natural gas reserves at period end		$	3.01			$	2.24

Depletion of proved oil and natural gas properties was $274 million ($16.34 per Boe) for the three months ended June 30, 2017 and $276 million ($20.84 per Boe) for 2016. Depletion expense remained relatively flat period over period due to offsetting factors of increased production and lower expenses per Boe. The decrease in depletion expense per Boe period over period was primarily due to (i) an overall increase in proved reserves period over period primarily due to our successful exploratory drilling program, the Reliance Acquisition, the Northern Delaware Basin acquisition, reductions in future estimated lease operating expenses and an increase in commodity prices period over period, partially offset by decreased proved reserves caused by reclassification of proved undeveloped reserves to unproved reserves because they are no longer expected to be developed within five years of their initial recording and (ii) lower drilling and completion costs per Boe of proved developed reserves added.

38

Impairments of long-lived assets. We periodically review our long-lived assets to be held and used, including proved oil and natural gas properties and their integrated assets, whenever events or circumstances indicate that the carrying value of those assets may not be recoverable, for instance when there are declines in commodity prices or well performance. We review our oil and natural gas properties by depletion base. An impairment loss is indicated if the sum of the expected undiscounted future net cash flows is less than the carrying amount of the assets. If the estimated undiscounted future net cash flows are less than the carrying amount of our assets, we recognize an impairment loss for the amount by which the carrying amount of the asset exceeds the estimated fair value of the asset.

We estimate undiscounted future net cash flows of our long-lived assets and their integrated assets using management’s assumptions and expectations of (i) commodity prices, which are based on the NYMEX strip, (ii) pricing adjustments for differentials, (iii) production costs, (iv) capital expenditures, (v) production volumes, (vi) estimated proved reserves and risk-adjusted probable and possible reserves, and (vii) prevailing market rates of income and expenses from integrated assets. At June 30, 2017, our estimates of commodity prices for purposes of determining undiscounted future cash flows, which are based on the NYMEX strip, ranged from a 2017 price of $45.26 per barrel of oil to a 2024 price of $53.68 per barrel of oil. Similarly, natural gas prices ranged from a 2017 price of $3.16 per Mcf of natural gas decreasing to a 2020 price of $2.83 per Mcf of natural gas partially recovering to a 2024 price of $3.03 per Mcf of natural gas. Commodity prices for this purpose were held flat after 2024.

We estimate fair values of our long-lived assets and their integrated assets using a discounted future cash flow model. Fair value assumptions associated with the calculation of discounted future net cash flows include (i) market estimates of commodity prices, (ii) pricing adjustments for differentials, (iii) production costs, (iv) capital expenditures, (v) production volumes, (vi) estimated proved reserves and risk-adjusted probable and possible reserves, (vii) prevailing market rates of income and expenses from integrated assets and (viii) discount rate. The expected future net cash flows were discounted using an annual rate of 10 percent to determine fair value. We did not recognize an impairment charge during the three months ended June 30, 2017 or 2016.

It is reasonably possible that the estimate of undiscounted future net cash flows of our long-lived assets may change in the future resulting in the need to impair carrying values. The primary factors that may affect estimates of future net cash flows are (i) commodity futures prices, (ii) increases or decreases in production and capital costs, (iii) future reserve volume adjustments, both positive and negative, to proved reserves and appropriate risk-adjusted probable and possible reserves, (iv) results of future drilling activities and (v) prevailing market rates of income and expenses from integrated assets.

Based on economic factors at June 30, 2017, we determined that undiscounted future cash flows attributable to our North Basin Bone Spring (“NBBS”) field located in the northern Delaware Basin with a net book value of approximately $1.2 billion indicated that its carrying amount was expected to be recovered; however, it may be at risk for impairment if management’s estimates of future cash flows decline, including as a result of further declines in projected commodity prices (and the resulting impact of future cash flows). We estimate that if the future oil and natural gas prices used in this analysis, and noted above, would have been approximately 10 percent lower at June 30, 2017 with no other changes in capital costs, operating costs, price differentials, or reserve performance curves, we could have recognized a non-cash impairment in that period of approximately $365 million related to our NBBS field. Other assumptions such as operating costs, well and reservoir performance, severance and ad valorem taxes, and operating and development plans would likely change given a change in oil and natural gas prices. However, we did not estimate the correlation between these assumptions and any estimated commodity price change, and these and other assumptions may worsen or partially mitigate some of the effects of a reduction in commodity prices, including the ultimate impact and amount of any potential impairment charge. As a result, we are unable to predict with certainty whether or not a decline in commodity prices alone will cause us to recognize an impairment charge in a particular field or the magnitude of any such impairment charge. We additionally note that there may be changes to both drilling and completion designs that affect the volume curves, capital costs estimates, and the amount of proved undeveloped locations that can be recorded, each of which will affect management’s estimates of future cash flows.

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General and administrative expenses.The following table provides components of our general and administrative expenses for the three months ended June 30, 2017 and 2016:

		Three Months Ended June 30,
		2017				2016
				Per				Per
(in millions, except per unit amounts)		Amount		Boe		Amount		Boe
General and administrative expenses		$	50	$	3.06	$	45	$	3.37
Less: Operating fee reimbursements			(4)		(0.25)		(4)		(0.27)
Non-cash stock-based compensation			14		0.89		12		0.94
	Total general and administrative expenses	$	60	$	3.70	$	53	$	4.04

General and administrative expenses were approximately $60 million ($3.70 per Boe) for the three months ended June 30, 2017, an increase of $7 million (13 percent) from $53 million ($4.04 per Boe) for 2016. The increase in cash general and administrative expenses was primarily a result of increased compensation expense. The increase in non-cash stock-based compensation was primarily due to an increase in forfeiture estimates during 2016. The decrease in total general and administrative expenses per Boe was primarily due to increased production period over period, partially offset by the increase in general and administrative costs noted above.

We receive fees for the operation of jointly-owned oil and natural gas properties during the drilling and production phases and record such reimbursements as reductions of general and administrative expenses in the consolidated statements of operations. We earned reimbursements of approximately $4 million for each of the three months ended June 30, 2017 and 2016. 

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Gain (loss) on derivatives.The following table sets forth the gain (loss) on derivatives for the three months ended June 30, 2017 and 2016:

			Three Months Ended
			June 30,
(in millions)				2017		2016
Gain (loss) on derivatives:
	Oil derivatives		$	199	$	(281)
	Natural gas derivatives			10		(17)
		Total	$	209	$	(298)
The following table represents our net cash receipts from (payments on) derivatives for the three months ended June 30, 2017 and 2016:
			Three Months Ended
			June 30,
(in millions)				2017		2016
Net cash receipts from (payments on) derivatives:
	Oil derivatives		$	70	$	160
	Natural gas derivatives			(2)		8
		Total	$	68	$	168

Our earnings are affected by the changes in value of our derivatives portfolio between periods and the related cash settlements of those derivatives, which could be significant. To the extent the future commodity price outlook declines between measurement periods, we will have mark-to-market gains, while to the extent the future commodity price outlook increases between measurement periods, we will have mark-to-market losses. See Note 6 of the Condensed Notes to Consolidated Financial Statements included in “Item 1. Consolidated Financial Statements (Unaudited)” for additional information regarding significant judgments made in classifying financial instruments in the fair value hierarchy.

Interest expense. Interest expense was $39 million for the three months ended June 30, 2017 as compared to $55 million during 2016. The decrease was primarily due to (i) approximately $11 million for the early redemption of our $600 million 7.0% unsecured senior notes in September 2016 and (ii) approximately $3 million, net, for the satisfaction and discharge of our $600 million 6.5% unsecured senior notes in December 2016 and our issuance of $600 million 4.375% unsecured senior notes in December 2016.

Loss on extinguishment of debt.In April 2017, we amended our credit facility. We recorded a loss on extinguishment of debt of approximately $1 million for the three months ended June 30, 2017, representing the proportional amount of unamortized deferred loan costs associated with banks that are no longer in the credit facility syndicate.

Income tax provisions.  We recorded income tax expense of $93 million, which includes discrete income tax expense of approximately $2 million related to excess tax deficiencies on stock-based awards, which are recorded in the income tax provision pursuant to Accounting Standards Update (“ASU”) No. 2016-09, which was adopted on January 1, 2017, and an income tax benefit of $158 million for the three months ended June 30, 2017 and 2016, respectively. The change in our income tax provision was primarily due to income before income taxes during the three months ended June 30, 2017, as compared to a loss before income taxes during 2016. The effective income tax rates for the three months ended June 30, 2017 and 2016 were 37.8 percent and 37.3 percent, respectively.

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Six Months Ended June 30, 2017 Compared to Six Months Ended June 30, 2016

Oil and natural gas revenues.  Revenue from oil and natural gas operations was$1,179 million for the six months ended June 30, 2017, an increase of$499 million (73 percent) from $680 million for 2016. This increase was primarily due to the increase in oil and natural gas production as well as the increase in realized oil and natural gas prices (excluding the effects of derivative activities). Specific factors affecting oil and natural gas revenues include the following:

·average daily oil production was 113,409 Bbl  for the six months ended June 30, 2017, an increase  of 24,195 Bbl  (27 percent) from 89,214 Bbl  for 2016; 

·average realized oil price (excluding the effects of derivative activities) was $46.91 per Bbl during the six months ended June 30, 2017, an increase of 31 percent  from $35.80  per Bbl during 2016. For the six months ended June 30, 2017, our crude oil price differential relative to NYMEX was $(3.21) per Bbl, or a realization of approximately 94 percent, as compared to a crude oil price differential relative to NYMEX of $(3.85) per Bbl, or a realization of approximately 90 percent, for 2016. The basis differential between the location of Midland, Texas and Cushing, Oklahoma (NYMEX pricing location) for our oil directly impacts our realized oil price. For the six months ended June 30, 2017 and 2016, the average market basis differential between WTI-Midland and WTI-Cushing was a price reduction of $0.09 per Bbl and $0.01 per Bbl, respectively. Additionally, we incur fixed deductions from the posted Midland oil price based on the location of our oil within the Permian Basin. These fixed deductions were less per Boe during the six months ended June 30, 2017 as compared to 2016 primarily due to (i) more production transported through pipelines and (ii) successful renegotiation of fixed deductions for existing production transported through pipelines;

·average daily natural gas production was 417,762 Mcf  for the six months ended June 30, 2017, an increase  of 99,130 Mcf  (31 percent) from 318,632 Mcf  for 2016; and

·average realized natural gas price (excluding the effects of derivative activities) was $2.85 per Mcf during the six months ended June 30, 2017, an increase of 68 percent  from $1.70 per Mcf during 2016. For the six months ended June 30, 2017 and 2016, we realized approximately 91 percent and 80 percent, respectively, of the average NYMEX natural gas prices for the respective periods. The increase in our realized natural gas price (excluding the effects of derivatives) as a percentage of NYMEX during the six  months ended June 30, 2017 as compared to 2016 was primarily due to an increase in the average Mont Belvieu price for a blended barrel of natural gas liquids. Historically, and during the six  months ended June 30, 2017, we derived a significant portion of our total natural gas revenues from the value of the natural gas liquids contained in our natural gas, with the remaining portion coming from the value of the dry natural gas residue. The average Mont Belvieu price for a blended barrel of natural gas liquids was $23.09 per Bbl and $16.32 per Bbl during the six months ended June 30, 2017 and 2016, respectively. 

During December 2015, a third-party natural gas processing plant located in the northern Delaware Basin became inoperable following an explosion. We estimate that this event negatively impacted production for the six months ended June 30, 2016 by approximately 2.4 MBoepd. The plant became fully operational during April 2016.

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Oil and natural gas production expenses.  The following table provides the components of our oil and natural gas production expenses for the six months ended June 30, 2017 and 2016:

		Six Months Ended June 30,
		2017				2016
				Per				Per
(in millions, except per unit amounts)		Amount		Boe		Amount		Boe
Lease operating expenses		$	178	$	5.36	$	159	$	6.15
Workover costs			9		0.28		10		0.39
	Total oil and natural gas production expenses	$	187	$	5.64	$	169	$	6.54

Lease operating expenses were $178 million ($5.36 per Boe) for the six months ended June 30, 2017, which was an increase of $19 million from $159 million ($6.15 per Boe) for the six months ended June 30, 2016. The increase in lease operating expenses during the first half of 2017 as compared to 2016 was primarily due to increased production associated with our wells successfully drilled and completed in 2016 and 2017, partially offset by (i) implementation of operational cost efficiencies, including improved infrastructure around salt water disposals and (ii) an overall decrease in the cost of goods and services. The decrease in lease operating expenses per Boe was primarily due to implementation of operational costs efficiencies partially offset by higher expenses per Boe on properties associated with our recent acquisitions in the second half of 2016 and first half of 2017.

Production and ad valorem taxes.  The following table provides the components of our production and ad valorem tax expenses for the six months ended June 30, 2017 and 2016:

		Six Months Ended June 30,
		2017				2016
				Per				Per
(in millions, except per unit amounts)		Amount		Boe		Amount		Boe
Production taxes		$	84	$	2.53	$	47	$	1.81
Ad valorem taxes			8		0.24		9		0.34
	Total production and ad valorem taxes	$	92	$	2.77	$	56	$	2.15

Production taxes per unit of production were $2.53 per Boe during the six months ended June 30, 2017, an increase of 40 percent from $1.81 per Boe during 2016. Over the same period, our revenue per Boe (excluding the effects of derivatives) increased 36 percent. The increase in production taxes per unit of production was directly related to the increase in oil and natural gas sales. Additionally, tax credits of approximately $4 million were received during the first quarter of 2016 related to certain wells in Texas qualifying for reduced severance tax rates. Production taxes fluctuate with the market value of our production sold, while ad valorem taxes are generally based on the valuation of our oil and natural gas properties at the beginning of the year, which vary across the different areas in which we operate.

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Exploration and abandonments expense. The following table provides the components of our exploration and abandonments expense for the six months ended June 30, 2017 and 2016:

		Six Months Ended
		June 30,
(in millions)		2017		2016
Geological and geophysical		$	7	$	4
Exploratory dry hole costs			-		7
Leasehold abandonments			24		32
Other			4		1
	Total exploration and abandonments	$	35	$	44

Our geological and geophysical expense for the periods presented above primarily consists of the costs of acquiring and processing geophysical data and core analysis.

Our exploratory dry hole costs during the six months ended June 30, 2016 were primarily related to an uneconomic well in our Delaware Basin area that was attempting to establish commercial production through testing of multiple zones. We did not recognize any exploratory dry hole costs during the six months ended June 30, 2017.

For the six  months ended June 30, 2017 and 2016, we recorded approximately $24 million and $32 million, respectively, of leasehold abandonments. For the six  months ended June 30, 2017, our abandonments were primarily related to (i) non-contiguous acreage expiring in our Southern Delaware Basin core area and (ii) acreage in our Northern Delaware Basin and Midland Basin core areas in locations where we have no future plans to drill. For the six  months ended June 30, 2016, our abandonments were primarily related to (i) drilling locations in our Delaware Basin and New Mexico Shelf areas which, based on multiple factors, are no longer likely to be drilled, (ii) acreage in our Delaware Basin and New Mexico Shelf areas where we have no future development plans and (iii) expiring acreage.

Depreciation, depletion and amortization expense.  The following table provides components of our depreciation, depletion and amortization expense for the six months ended June 30, 2017 and 2016:

		Six Months Ended June 30,
		2017				2016
					Per				Per
(in millions, except per unit amounts)			Amount		Boe		Amount		Boe
Depletion of proved oil and natural gas properties		$	551	$	16.65	$	580	$	22.39
Depreciation of other property and equipment			12		0.35		10		0.40
Amortization of intangible assets - operating rights			1		0.02		1		0.03
	Total depletion, depreciation and amortization	$	564	$	17.02	$	591	$	22.82

Depletion of proved oil and natural gas properties was $551 million ($16.65 per Boe) for the six months ended June 30, 2017, a decrease of $29 million (5 percent) from $580 million ($22.39 per Boe) for 2016. The decrease in depletion expense was primarily due to a lower depletion rate per Boe period over period partially offset by an increase in production. The decrease in depletion expense per Boe period over period was primarily due to (i) a non-cash impairment charge of approximately $1.5 billion recorded in the first quarter of 2016, (ii) an overall increase in proved reserves period over period primarily caused by our successful exploratory drilling program, the Reliance Acquisition, the Northern Delaware Basin acquisition, reductions in future estimated lease operating expenses and higher commodity prices period over period, partially offset by decreased proved reserves caused by reclassification of proved undeveloped reserves to unproved reserves because they are no longer expected to be developed within five years of their initial recording and (iii) lower drilling and completion costs per Boe of proved developed reserves added.

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Impairments of long-lived assets. We periodically review our long-lived assets to be held and used, including proved oil and natural gas properties and their integrated assets, whenever events or circumstances indicate that the carrying value of those assets may not be recoverable, for instance when there are declines in commodity prices or well performance. We review our oil and natural gas properties by depletion base. An impairment loss is indicated if the sum of the expected undiscounted future net cash flows is less than the carrying amount of the assets. If the estimated undiscounted future net cash flows are less than the carrying amount of our assets, we recognize an impairment loss for the amount by which the carrying amount of the asset exceeds the estimated fair value of the asset.

We estimate undiscounted future net cash flows of our long-lived assets and their integrated assets using management’s assumptions and expectations of (i) commodity prices, which are based on the NYMEX strip, (ii) pricing adjustments for differentials, (iii) production costs, (iv) capital expenditures, (v) production volumes, (vi) estimated proved reserves and risk-adjusted probable and possible reserves, and (vii) prevailing market rates of income and expenses from integrated assets. At June 30, 2017, our estimates of commodity prices for purposes of determining undiscounted future cash flows, which are based on the NYMEX strip, ranged from a 2017 price of $45.26 per barrel of oil to a 2024 price of $53.68 per barrel of oil. Similarly, natural gas prices ranged from a 2017 price of $3.16 per Mcf of natural gas decreasing to a 2020 price of $2.83 per Mcf of natural gas partially recovering to a 2024 price of $3.03 per Mcf of natural gas. Commodity prices for this purpose were held flat after 2024.

We estimate fair values of our long-lived assets and their integrated assets using a discounted future cash flow model. Fair value assumptions associated with the calculation of discounted future net cash flows include (i) market estimates of commodity prices, (ii) pricing adjustments for differentials, (iii) production costs, (iv) capital expenditures, (v) production volumes, (vi) estimated proved reserves and risk-adjusted probable and possible reserves, (vii) prevailing market rates of income and expenses from integrated assets and (viii) discount rate. The expected future net cash flows were discounted using an annual rate of 10 percent to determine fair value.

During the three months ended March 31, 2016, NYMEX strip prices declined as compared to December 31, 2015, and as a result the carrying amount of our Yeso field in our New Mexico Shelf core area exceeded the expected undiscounted future net cash flows resulting in a non-cash charge against earnings of approximately $1.5 billion. The Yeso field, as compared to our other fields not previously impaired, had significant proved reserves upon acquisition, which required a higher valuation than a field more exploratory in nature that has a higher risk factor adjustment in the fair value estimate. Our estimates of commodity prices for purposes of determining the estimated fair value at March 31, 2016 ranged from a 2016 price of $41.26 per barrel of oil and $2.26 per Mcf of natural gas to a 2023 price of $66.33 per barrel of oil and $3.56 per Mcf of natural gas. Commodity prices for this purpose were held flat after 2023. We did not recognize an impairment charge during the six months ended June 30, 2017.

It is reasonably possible that the estimate of undiscounted future net cash flows of our long-lived assets may change in the future resulting in the need to impair carrying values. The primary factors that may affect estimates of future net cash flows are (i) commodity futures prices, (ii) increases or decreases in production and capital costs, (iii) future reserve volume adjustments, both positive and negative, to proved reserves and appropriate risk-adjusted probable and possible reserves, (iv) results of future drilling activities and (v) prevailing market rates of income and expenses from integrated assets.

Based on economic factors at June 30, 2017, we determined that undiscounted future cash flows attributable to our NBBS field located in the northern Delaware Basin with a net book value of approximately $1.2 billion indicated that its carrying amount was expected to be recovered; however, it may be at risk for impairment if management’s estimates of future cash flows decline, including as a result of further declines in projected commodity prices (and the resulting impact of future cash flows). We estimate that if the future oil and natural gas prices used in this analysis, and noted above, would have been approximately 10 percent lower at June 30, 2017 with no other changes in capital costs, operating costs, price differentials, or reserve performance curves, we could have recognized a non-cash impairment in that period of approximately $365 million related to our NBBS field. Other assumptions such as operating costs, well and reservoir performance, severance and ad valorem taxes, and operating and development plans would likely change given a change in oil and natural gas prices. However, we did not estimate the correlation between these assumptions and any estimated commodity price change, and these and other assumptions may worsen or partially mitigate some of the effects of a reduction in commodity prices, including the ultimate impact and amount of any potential impairment charge. As a result, we are unable to predict with certainty whether or not a decline in commodity prices alone will cause us to recognize an impairment charge in a particular field or the magnitude of any such impairment charge. We additionally note that there may be changes

45

to both drilling and completion designs that affect the volume curves, capital costs estimates, and the amount of proved undeveloped locations that can be recorded, each of which will affect management’s estimates of future cash flows.

General and administrative expenses.The following table provides components of our general and administrative expenses for the six months ended June 30, 2017 and 2016:

		Six Months Ended June 30,
		2017				2016
				Per				Per
(in millions, except per unit amounts)		Amount		Boe		Amount		Boe
General and administrative expenses		$	98	$	2.99	$	87	$	3.35
Less: Operating fee reimbursements			(8)		(0.24)		(8)		(0.31)
Non-cash stock-based compensation			26		0.79		28		1.10
	Total general and administrative expenses	$	116	$	3.54	$	107	$	4.14

General and administrative expenses were approximately $116 million ($3.54 per Boe) for the six months ended June 30, 2017, an increase of $9 million (8 percent) from $107 million ($4.14 per Boe) for 2016. The increase in cash general and administrative expenses was primarily a result of increased compensation expense. The decrease in non-cash stock-based compensation was partially due to recording forfeitures as they occur rather than recording forfeiture estimates per the adoption of ASU No. 2016-09 on January 1, 2017. The decrease in total general and administrative expenses per Boe was primarily due to increased production period over period, partially offset by the increase in general and administrative costs noted above.

We receive fees for the operation of jointly-owned oil and natural gas properties during the drilling and production phases and record such reimbursements as reductions of general and administrative expenses in the consolidated statements of operations. We earned reimbursements of approximately $8 million for each of the six months ended June 30, 2017 and 2016.

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Gain (loss) on derivatives.The following table sets forth the gain (loss) on derivatives for the six months ended June 30, 2017 and 2016:

			Six Months Ended
			June 30,
(in millions)				2017		2016
Gain (loss) on derivatives:
	Oil derivatives		$	465	$	(209)
	Natural gas derivatives			30		(8)
		Total	$	495	$	(217)
The following table represents our net cash receipts from (payments on) derivatives for the six months ended June 30, 2017 and 2016:
			Six Months Ended
			June 30,
(in millions)				2017		2016
Net cash receipts from (payments on) derivatives:
	Oil derivatives		$	101	$	412
	Natural gas derivatives			(5)		15
		Total	$	96	$	427

Our earnings are affected by the changes in value of our derivatives portfolio between periods and the related cash settlements of those derivatives, which could be significant. To the extent the future commodity price outlook declines between measurement periods, we will have mark-to-market gains, while to the extent the future commodity price outlook increases between measurement periods, we will have mark-to-market losses. See Note 6 of the Condensed Notes to Consolidated Financial Statements included in “Item 1. Consolidated Financial Statements (Unaudited)” for additional information regarding significant judgments made in classifying financial instruments in the fair value hierarchy.

Gain on disposition of assets, net. In February 2017, we closed on our previously announced divestiture of our ownership interest in ACC. After adjustments for debt and working capital, we received cash proceeds from the sale of approximately $803 million. After direct transaction costs, we recorded a pre-tax gain on disposition of assets of approximately $655 million. Our net investment in ACC at the time of closing was approximately $129 million.

In February 2016, we sold certain assets in the northern Delaware Basin for proceeds of approximately $292 million and recognized a pre-tax gain of approximately $110 million.

Interest expense. Interest expense was $79 million for the six months ended June 30, 2017 as compared to $109 million during 2016. The decrease was primarily due to (i) approximately $21 million for the early redemption of our $600 million 7.0% unsecured senior notes in September 2016 and (ii) approximately $5 million, net, for the satisfaction and discharge of our $600 million 6.5% unsecured senior notes in December 2016 and our issuance of $600 million 4.375% unsecured senior notes in December 2016.

Loss on extinguishment of debt.In April 2017, we amended our credit facility. We recorded a loss on extinguishment of debt of approximately $1 million for the six months ended June 30, 2017, representing the proportional amount of unamortized deferred loan costs associated with banks that are no longer in the credit facility syndicate.

Income tax provisions.  We recorded income tax expense of $464 million, which includes a discrete income tax benefit of approximately $6 million related to excess tax benefits on stock-based awards, which are recorded in the income tax provision pursuant to ASU No. 2016-09, which was adopted on January 1, 2017, and an income tax benefit of $752 million for the six months ended June 30, 2017 and 2016, respectively. The change in our income tax provision was primarily due to income before income taxes during the six months ended June 30, 2017, as compared to a loss before income taxes during

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2016. The effective income tax rates for the six months ended June 30, 2017 and 2016 were 36.6 percent and 36.9 percent, respectively.

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Capital Commitments, Capital Resources and Liquidity

Capital commitments. Our primary needs for cash are development, exploration and acquisition of oil and natural gas assets, midstream joint venture and other capital commitments, payment of contractual obligations and working capital obligations. Funding for these cash needs may be provided by any combination of internally-generated cash flow, financing under our credit facility, proceeds from the disposition of assets or alternative financing sources, as discussed in “— Capital resources” below.

Oil and natural gas properties. Our costs incurred on oil and natural gas properties, excluding acquisitions, during the six months ended June 30, 2017 and 2016 totaled $775 million and $525 million, respectively. The increase was primarily due to our increased drilling and completion activity level during the first half of 2017 as compared to 2016. Our intent is to manage our capital spending to be within our cash flow, excluding unbudgeted acquisitions. The primary reason for the differences in costs incurred and cash flow expenditures was our issuance of approximately 2.2 million shares of common stock related to our Northern Delaware Basin acquisition and timing of payments. Total 2017 expenditures were primarily funded in part from (i) cash flows from operations, (ii) our issuance of approximately 2.2 million shares of common stock related to our Northern Delaware Basin acquisition and to a lesser extent (iii) proceeds from our February 2017 divestiture of ACC.

2017 capital budget. In February 2017, we announced our updated 2017 capital budget, excluding acquisitions, of approximately $1.8 billion with expected capital spending to range between $1.6 billion and $1.8 billion. Approximately 90 percent of capital will be directed to drilling and completion activity. Our 2017 capital program is expected to continue focusing on extended length lateral drilling and multi-well pad development. Our 2017 capital budget, based on our current expectations of commodity prices and costs, is expected to be within our cash flows. However, if we were to outspend our cash flows, we believe we could use our (i) cash on hand, (ii) credit facility and (iii) other financing sources to fund any cash flow deficits. The actual amount and timing of our expenditures may differ materially from our estimates as a result of, among other things, actual drilling results, the timing of expenditures by third parties on projects that we do not operate, the costs of drilling rigs and other services and equipment, regulatory, technological and competitive developments, commodity prices, leverage metrics and industry conditions. In addition, under certain circumstances, we may consider increasing, decreasing or reallocating our capital spending plans.

Acquisitions. The following table reflects our expenditures for acquisitions of proved and unproved properties for the six months ended June 30, 2017 and 2016:

			Six Months Ended
			June 30,
(in millions)			2017		2016
Property acquisition costs:
	Proved		$	139	$	256
	Unproved			393		158
		Total property acquisition costs (a)	$	532	$	414
(a)	Included in the property acquisition costs above are budgeted unproved leasehold acreage acquisitions of $18 million and $23 million for the six months ended June 30, 2017 and 2016, respectively. For the six months ended June 30, 2017, our unbudgeted acquisitions are primarily comprised of approximately $451 million of property acquisition costs related to our Northern Delaware Basin acquisition. For the six months ended June 30, 2016, our unbudgeted acquisitions are primarily comprised of approximately $374 million of property acquisition costs related to our Southern Delaware Basin acquisition.

Contractual obligations.  Our contractual obligations include long-term debt, cash interest expense on debt, derivative liabilities, asset retirement obligations, employment agreements with officers, purchase obligations, operating lease obligations and other obligations. Since December 31, 2016, the changes in our contractual obligations are not material, other than our derivative liability position, which decreased by $178 million. See Note 8 of the Condensed Notes to Consolidated

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Financial Statements included in “Item 1. Consolidated Financial Statements (Unaudited)” for additional information regarding our long-term debt and “Item 3. Quantitative and Qualitative Disclosures About Market Risk” for information regarding the interest on our long-term debt and information on changes in the fair value of our open derivative obligations during the six months ended June 30, 2017.

Off-balance sheet arrangements.  Currently, we do not have any material off-balance sheet arrangements.

Capital resources.  Our primary sources of liquidity have been cash flows generated from (i) operating activities, (ii) borrowings under our credit facility, (iii) proceeds from bond and equity offerings and (iv) asset dispositions. In February 2017, we announced our updated 2017 capital budget, excluding acquisitions, of approximately $1.8 billion with expected capital spending to range between $1.6 billion and $1.8 billion. Approximately 90 percent of capital will be directed to drilling and completion activity. Our 2017 capital program is expected to continue focusing on extended length lateral drilling and multi-well pad development. Our 2017 capital budget, based on our current expectations of commodity prices and costs, is expected to be within our cash flows. However, if we were to outspend our cash flows, we believe we could use our (i) cash on hand, (ii) credit facility and (iii) other financing sources to fund any cash flow deficits. The actual amount and timing of our expenditures may differ materially from our estimates as a result of, among other things, actual drilling results, the timing of expenditures by third parties on projects that we do not operate, the costs of drilling rigs and other services and equipment, regulatory, technological and competitive developments, commodity prices, leverage metrics and industry conditions. In addition, under certain circumstances, we may consider increasing, decreasing or reallocating our capital spending plans.

The following table summarizes our changes in cash and cash equivalents for the six months ended June 30, 2017 and 2016:

		Six Months Ended
		June 30,
(in millions)		2017		2016
Net cash provided by operating activities		$	805	$	676
Net cash used in investing activities			(168)		(412)
Net cash used in financing activities			(28)		(12)
	Net increase in cash and cash equivalents	$	609	$	252

Cash flow from operating activities. The increase in operating cash flows during the six  months ended June 30, 2017 as compared to the same period in 2016 was primarily due to (i) an increase in oil and natural gas revenues of approximately $499 million, (ii) a decrease in cash interest expense of approximately $30 million and (iii) approximately $8 million of positive variances in operating assets and liabilities, partially offset by (i) approximately $96 million from settlements on derivatives during the six months ended June 30, 2017, as compared to $427 million from settlements on derivatives during the comparable period in 2016, (ii) approximately $36 million increase in production tax expense, (iii) a decrease in operating cash flow of approximately $22 million due to cash tax expense of approximately $10 million for the six months ended June 30, 2017, as compared to a cash tax benefit of approximately $12 million during  the comparable period in 2016 and (iv) approximately $18 million increase in production expense.

Our net cash provided by operating activities included a reduction of approximately $18million and $26million for the six  months ended June 30, 2017 and 2016, respectively, associated with changes in working capital items. Changes in working capital items adjust for the timing of receipts and payments of actual cash.

Cash flow from investing activities. During the six months ended June 30, 2017 and 2016, we invested approximately $863 million and $651 million, respectively, for capital expenditures on oil and natural gas properties. Additionally, we received approximately $803 million related to proceeds from the disposition of assets during the six months ended June 30, 2017, as compared to $294 million during the comparable period of 2016.

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Cash flow from financing activities.Net cash used in financing activities was approximately $28 million and $12 million for the six months ended June 30, 2017 and 2016, respectively. In April 2017, we amended our credit facility to decrease our unused lender commitments and increase our borrowing base. At June 30, 2017, we had unused commitments on our credit facility of $2.0 billion and a borrowing base of $3.0 billion. 

Advances on our amended and restated credit facility bear interest, at our option, based on (i) the prime rate of JPMorgan Chase Bank (“JPM Prime Rate”) (4.25 percent at June 30, 2017) or (ii) the London Interbank Offered Rate (“LIBOR”). The credit facility’s interest rates vary, with interest margins ranging from 125 to 225 basis points (LIBOR Rate Loans) and 25 to 125 basis points (Alternate Base Rate Loans) per annum depending on the utilization of the borrowing base. We pay commitment fees on the unused portion of the available commitment ranging from 30.0 to 37.5 basis points per annum, depending on utilization of the borrowing base. Subject to certain restrictions, with respect to our public debt ratings, the collateral securing the facility may be released.

In conducting our business, we may utilize various financing sources, including the issuance of (i) fixed and floating rate debt, (ii) convertible securities, (iii) preferred stock, (iv) common stock and (v) other securities. Historically, we have demonstrated our use of the capital markets by issuing common stock and senior unsecured debt. There are no assurances that we can access the capital markets to obtain additional funding, if needed, and at cost and terms that are favorable to us. We may also sell assets and issue securities in exchange for oil and natural gas assets or interests in energy companies. Additional securities may be of a class senior to common stock with respect to such matters as dividends and liquidation rights and may also have other rights and preferences as determined from time to time. Utilization of some of these financing sources may require approval from the lenders under our credit facility.

Liquidity. Our principal sources of liquidity are cash on hand and available borrowing capacity under our credit facility. At June 30, 2017, we had approximately $662 million of cash on hand. In July 2017, we paid approximately $540 million in cash as consideration for our Midland Basin acquisition in addition to the $60 million of cash held in escrow at June 30, 2017.

During April 2017, we amended our credit facility to extend the maturity date to May 9, 2022. Additionally, we increased our borrowing base to $3.0 billion and decreased our commitments from bank groups to $2.0 billion. Upon a subsequent redetermination, there is no assurance that our borrowing base will not be reduced, which could affect our liquidity.

We may from time to time seek to retire or purchase our outstanding debt through cash purchases and/or exchanges for other debt or equity securities, in open market purchases, privately negotiated transactions or otherwise. Such repurchases or exchanges, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. The amounts involved may be material.

Debt ratings.We receive debt credit ratings from S&P Global Ratings (“S&P”) and Moody’s Investors Service, Inc. (“Moody’s”), which are subject to regular reviews. S&P and Moody’s consider many factors in determining our ratings including: the industry in which we operate, production growth opportunities, liquidity, debt levels and asset and reserve mix. A reduction in our debt ratings could negatively affect our ability to obtain additional financing or the interest rate, fees and other terms associated with such additional financing.

A downgrade in our credit ratings could negatively impact our costs of capital and our ability to effectively execute aspects of our strategy. Further, a downgrade in our credit ratings could affect our ability to raise debt in the public debt markets, and the cost of any new debt could be much higher than our outstanding debt. These and other impacts of a downgrade in our credit ratings could have a material adverse effect on our business, financial condition and results of operations.

As of the filing of this Quarterly Report, no changes in our credit ratings have occurred since June 30, 2017; however, we cannot be assured that our credit ratings will not be downgraded in the future.

Book capitalization and current ratio. Our net book capitalization at June 30, 2017 was $10.7billion, consisting of $0.7 billion of cash and cash equivalents, debt of $2.7 billion and stockholders’ equity of $8.7 billion. Our net book capitalization at December 31, 2016 was $10.2 billion, consisting of $0.1 billion of cash and cash equivalents, debt of $2.7 billion and stockholders’ equity of $7.6 billion. Our ratio of net debt to net book capitalization was 19 percent and 26  percent at  June 30,

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2017 and December 31, 2016, respectively. Our ratio of current assets to current liabilities was 1.70to 1.0 at June 30, 2017 as compared to 0.73 to 1.0 at December 31, 2016. Both our ratio of net debt to net book capitalization and our ratio of current assets to current liabilities were impacted subsequent to June 30, 2017 by the Midland Basin acquisition in July 2017.

Inflation and changes in prices.  Our revenues, the value of our assets, and our ability to obtain bank financing or additional capital on attractive terms have been and will continue to be affected by changes in commodity prices and the costs to produce our reserves. Commodity prices are subject to significant fluctuations that are beyond our ability to control or predict. During the six months ended June 30, 2017, we received an average of $46.91per Bbl of oil and $2.85per Mcf of natural gas before consideration of commodity derivative contracts compared to $35.80per Bbl of oil and $1.70per Mcf of natural gas in the six months ended June 30, 2016. Although certain of our costs are affected by general inflation, inflation does not normally have a significant effect on our business.

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Critical Accounting Policies, Practices and Estimates

Our historical consolidated financial statements and related condensed notes to consolidated financial statements contain information that is pertinent to our management’s discussion and analysis of financial condition and results of operations. Preparation of financial statements in conformity with accounting principles generally accepted in the United States requires that our management make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities. However, the accounting principles used by us generally do not change our reported cash flows or liquidity. Interpretation of the existing rules must be done and judgments made on how the specifics of a given rule apply to us.

In management’s opinion, the more significant reporting areas impacted by management’s judgments and estimates are the choice of accounting method for oil and natural gas activities, oil and natural gas reserve estimation, asset retirement obligations, impairment of long-lived assets, valuation of business combinations, valuation of nonmonetary exchanges, valuation of financial derivative instruments, valuation of stock-based compensation and income taxes. Management’s judgments and estimates in these areas are based on information available from both internal and external sources, including engineers, geologists and historical experience in similar matters. Actual results could differ from the estimates as additional information becomes known.

There have been no material changes in our critical accounting policies and procedures during the six months ended June 30, 2017. See our disclosure of critical accounting policies in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Item 8. Financial Statements and Supplementary Data” of our Annual Report on Form 10-K for the year ended December 31, 2016, filed with the United States Securities and Exchange Commission (the “SEC”) on February 22, 2017.

New accounting pronouncements issued but not yet adopted. In February 2016, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2016-02, “Leases (Topic 842),” which supersedes current lease guidance. The new lease standard requires all leases with a term greater than one year to be recognized on the balance sheet while maintaining substantially similar classifications for finance and operating leases. Lease expense recognition on the income statement will be effectively unchanged. This guidance is effective for reporting periods beginning after December 15, 2018 and early adoption is permitted. We are evaluating the impact that this new guidance will have on our consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” with the objective of adding guidance to assist in evaluating whether transactions should be accounted for as asset acquisitions or as business combinations. The guidance provides a screen to determine when an integrated set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the acquired assets is concentrated in a single asset or a group of similar assets, the set is not a business. If the screen is not met, to be considered a business, the set must include an input and a substantive process that together significantly contribute to the ability to create output. This new guidance is effective for annual periods beginning after December 15, 2017, and early adoption is allowed. We are evaluating the impact this new guidance will have on our consolidated financial statements. The new guidance could result in more acquisitions of oil and natural gas properties being accounted for as asset acquisitions instead of business combinations.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

The following market risk disclosures should be read in conjunction with the quantitative and qualitative disclosures about market risk contained in our Annual Report on Form 10-K for the year ended December 31, 2016.

We are exposed to a variety of market risks, including credit risk, commodity price risk and interest rate risk. We address these risks through a program of risk management which includes the use of derivative instruments. The following quantitative and qualitative information is provided about financial instruments to which we are a party at June 30, 2017, and from which we may incur future gains or losses from changes in market interest rates or commodity prices and losses from extension of credit. We do not enter into derivative or other financial instruments for speculative or trading purposes.

Hypothetical changes in interest rates and commodity prices chosen for the following estimated sensitivity analysis are considered to be reasonably possible near-term changes generally based on consideration of past fluctuations for each risk category. However, since it is not possible to accurately predict future changes in interest rates and commodity prices, these hypothetical changes may not necessarily be an indicator of probable future fluctuations.

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 oil and natural gas production, which we market to energy marketing companies and refineries, and to a lesser extent, our derivative counterparties. We monitor our exposure to these counterparties primarily by reviewing credit ratings, financial statements and payment history. We extend credit terms based on our evaluation of each counterparty’s creditworthiness. Under the terms of our credit facility, certain events could occur that would cause the obligations under our credit facility to no longer be secured by our oil and natural gas properties.

We have entered into International Swap Dealers Association Master Agreements (“ISDA Agreements”) with each of our derivative counterparties. The terms of the ISDA Agreements provide us and the counterparties with rights of set-off upon the occurrence of defined acts of default by either us or a counterparty to a derivative, whereby the party not in default may set off all derivative liabilities owed to the defaulting party against all derivative asset receivables from the defaulting party.See Note 7 of the Condensed Notes to Consolidated Financial Statements included in “Item 1. Consolidated Financial Statements (Unaudited)” for additional information regarding our derivative activities.

Commodity price risk. We are exposed to market risk as the prices of our commodities are subject to fluctuations resulting from changes in supply and demand. To reduce our exposure to changes in the prices of our commodities, we have entered into, and may in the future enter into, additional commodity price risk management arrangements for a portion of our oil and natural gas production. The agreements that we have entered into generally have the effect of providing us with a fixed price for a portion of our expected future oil and natural gas production over a fixed period of time. Our commodity price risk management arrangements are recorded at fair value and thus changes to the future commodity prices will have an impact on net income. The following table sets forth the hypothetical impact on the fair value of the commodity price risk management arrangements from an average increase and decrease in the commodity price of $5.00 per Bbl of oil and $0.50 per MMBtu of natural gas from the commodity prices at June 30, 2017:

				Increase of		Decrease of
				$5.00 per Bbl and		$5.00 per Bbl and
(in millions)				$0.50 per MMBtu		$0.50 per MMBtu
Gain (loss):
	Oil derivatives		$	(262)	$	262
	Natural gas derivatives			(38)		38
		Total	$	(300)	$	300

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At June 30, 2017, we had (i) oil price swaps that settle on a monthly basis covering future oil production from July 1, 2017 through December 31, 2019 and (ii) oil basis swaps covering our Midland to Cushing basis differential from July 1, 2017 to December 31, 2019. The average NYMEX oil price for the six months ended June 30, 2017 was $50.12 per Bbl. At July 31, 2017, the NYMEX oil price was $50.17 per Bbl.

At June 30, 2017, we had natural gas price swaps that settle on a monthly basis covering future natural gas production from July 1, 2017 to December 31, 2019. The average NYMEX natural gas price for the six months ended June 30, 2017 was $3.12 per MMBtu. At July 31, 2017, the NYMEX natural gas price was $2.79 per MMBtu.

A decrease in the average forward NYMEX oil and natural gas prices below those at June 30, 2017 would increase the fair value asset of our commodity derivative contracts from their recorded balance at June 30, 2017. Changes in the recorded fair value of our commodity derivative contracts are marked to market through earnings as gains or losses. The potential increase in our fair value asset would be recorded in earnings as a gain. However, an increase in the average forward NYMEX oil and natural gas prices above those at June 30, 2017 would decrease the fair value asset of our commodity derivative contracts from their recorded balance at June 30, 2017. The potential decrease in our fair value asset would be recorded in earnings as a loss. We are currently unable to estimate the effects on the earnings of future periods resulting from changes in the market value of our commodity derivative contracts.

The fair value of our derivative instruments is determined based on our valuation models. We did not change our valuation method for our derivative instruments during the six months ended June 30, 2017. The following table reconciles the changes that occurred in the fair values of our derivative instruments during the six months ended June 30, 2017:

		Commodity Derivative
		Instruments
(in millions)		Net Assets (Liabilities) (a)
Fair value of contracts outstanding at December 31, 2016			$	(174)
	Changes in fair values (b)			495
	Contract maturities			(96)
Fair value of contracts outstanding at June 30, 2017			$	225
(a)	Represents the fair values of open derivative contracts subject to market risk.
(b)	At inception, new derivative contracts entered into by us have no intrinsic value.

See Note 7 of the Condensed Notes to Consolidated Financial Statements included in “Item 1. Consolidated Financial Statements (Unaudited)” for additional information regarding our derivative instruments.

Interest rate risk.Our exposure to changes in interest rates relates primarily to debt obligations. We manage our interest rate exposure by limiting our variable-rate debt to a certain percentage of total capitalization and by monitoring the effects of market changes in interest rates. To reduce our exposure to changes in interest rates we may, in the future, enter into interest rate risk management arrangements for a portion of our outstanding debt. The agreements that we have entered into generally have the effect of providing us with a fixed interest rate for a portion of our variable 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 are used solely to modify interest rate exposure and not to modify the overall leverage of the debt portfolio. We are exposed to changes in interest rates as a result of our credit facility, and the terms of our credit facility require us to pay higher interest rate margins as we utilize a larger percentage of our borrowing base.

We had no indebtedness outstanding under our credit facility at June 30, 2017.

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Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures. As required by Rule 13a-15(b) of the Exchange Act, we have evaluated, under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act) as of the end of the period covered by this Quarterly Report. Our disclosure controls and procedures are designed to provide reasonable assurance that the information required to be disclosed by us in reports that we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure and is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC. Based upon the evaluation, our principal executive officer and principal financial officer have concluded that our disclosure controls and procedures were effective at June 30, 2017 at the reasonable assurance level.

Changes in Internal Control over Financial Reporting. There have been no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during our last fiscal quarter that have materially affected or are reasonably likely to materially affect our internal control over financial reporting.

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PART II – OTHER INFORMATION

Item 1.  Legal Proceedings

We are a party to proceedings and claims incidental to our business. While many of these other matters involve inherent uncertainty, we believe that the liability, if any, ultimately incurred with respect to such other proceedings and claims will not have a material adverse effect on our consolidated financial position as a whole or on our liquidity, capital resources or future results of operations. We will continue to evaluate proceedings and claims involving us on a regular basis and will establish and adjust any reserves as appropriate to reflect our assessment of the then current status of the matters.

Item 1A.  Risk Factors

In addition to the information set forth in this Quarterly Report, you should carefully consider the risks discussed in our Annual Report on Form 10-K for the year ended December 31, 2016, under the headings “Item 1. Business — Competition,” “— Marketing Arrangements” and “— Applicable Laws and Regulations,” “Item 1A. Risk Factors,” “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Item 7A. Quantitative and Qualitative Disclosures About Market Risk” and the risks discussed in our Quarterly Report on Form 10-Q for the three months ended March 31, 2017, under the heading “Item 1A. Risk Factors,” which risks could materially affect our business, financial condition or future results. There have been no material changes in our risk factors from those described in our Annual Report on Form 10-K for the year ended December 31, 2016 and in our Quarterly Report on Form 10-Q for the three months ended March 31, 2017. The risks described in our Annual Report on Form 10-K for the year ended December 31, 2016 and in our Quarterly Report on Form 10-Q for the three months ended March 31, 2017 are not the only risks we face. 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.

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

Period		Total number of shares withheld (a)	Average price per share		Total number of shares purchased as part of publicly announced plans	Maximum number of shares that may yet be purchased under the plan
April 1, 2017 - April 30, 2017		279	$	127.56	-
May 1, 2017 - May 31, 2017		975	$	130.27	-
June 1, 2017 - June 30, 2017		11,763	$	115.94	-
(a)	Represents shares that were withheld by us to satisfy tax withholding obligations of certain of our officers and key employees that arose upon the lapse of restrictions on restricted stock.

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Item 6.  Exhibits

Exhibit  Number		Exhibit
3.1		Restated Certificate of Incorporation (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K on August 8, 2007, and incorporated herein by reference).
3.2		Third Amended and Restated Bylaws of Concho Resources Inc., as amended March 27, 2017 (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K on March 28, 2017, and incorporated herein by reference).
4.1		Specimen Common Stock Certificate (filed as Exhibit 4.1 to the Company’s Annual Report on Form 10-K on February 22, 2013, and incorporated herein by reference).
10.1	(a)	Second Amendment to Second Amended and Restated Credit Agreement, dated as of April 12, 2017, among Concho Resources Inc., the lenders party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent.
10.2	**	Retirement Agreement, dated May 17, 2017, by and between Concho Resources Inc. and E. Joseph Wright (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K on May 19, 2017, and incorporated herein by reference).
31.1	(a)	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	(a)	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	(b)	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	(b)	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	(a)	XBRL Instance Document.
101.SCH	(a)	XBRL Schema Document.
101.CAL	(a)	XBRL Calculation Linkbase Document.
101.DEF	(a)	XBRL Definition Linkbase Document.
101.LAB	(a)	XBRL Labels Linkbase Document.
101.PRE	(a)	XBRL Presentation Linkbase Document.

(a)  Filed herewith.

(b)  Furnished herewith.

**  Management compensatory plan or agreement

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SIGNATURES

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.

CONCHO RESOURCES INC.
Date:	August 3, 2017	By	/s/  Timothy A. Leach
			Timothy A. Leach
			Director, Chairman of the Board of Directors and Chief
			Executive Officer
			(Principal Executive Officer)
		By	/s/  Jack F. Harper
			Jack F. Harper
			President and Chief Financial Officer
			(Principal Financial Officer)
		By	/s/  Brenda R. Schroer
			Brenda R. Schroer
			Senior Vice President, Chief Accounting Officer and Treasurer
			(Principal Accounting Officer)

60

EXHIBIT INDEX

Exhibit  Number		Exhibit
3.1		Restated Certificate of Incorporation (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K on August 8, 2007, and incorporated herein by reference).
3.2		Third Amended and Restated Bylaws of Concho Resources Inc., as amended March 27, 2017 (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K on March 28, 2017, and incorporated herein by reference).
4.1		Specimen Common Stock Certificate (filed as Exhibit 4.1 to the Company’s Annual Report on Form 10-K on February 22, 2013, and incorporated herein by reference).
10.1	(a)	Second Amendment to Second Amended and Restated Credit Agreement, dated as of April 12, 2017, among Concho Resources Inc., the lenders party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent.
10.2	**	Retirement Agreement, dated May 17, 2017, by and between Concho Resources Inc. and E. Joseph Wright (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K on May 19, 2017, and incorporated herein by reference).
31.1	(a)	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	(a)	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	(b)	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	(b)	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	(a)	XBRL Instance Document.
101.SCH	(a)	XBRL Schema Document.
101.CAL	(a)	XBRL Calculation Linkbase Document.
101.DEF	(a)	XBRL Definition Linkbase Document.
101.LAB	(a)	XBRL Labels Linkbase Document.
101.PRE	(a)	XBRL Presentation Linkbase Document.

(a)  Filed herewith.

(b)  Furnished herewith.

**  Management compensatory plan or agreement

EX-10

 

Exhibit 10.1

Second Amendment to

Second Amended and Restated Credit Agreement

THIS Second Amendment to Second Amended and Restated Credit Agreement (this “Amendment”), dated as of April 12, 2017, is among CONCHO RESOURCES INC., a Delaware corporation (the “Borrower”), each of the Lenders party hereto (the “Lenders”) and JPMORGAN CHASE BANK, N.A., as administrative agent for the Lenders (in such capacity, together with its successors in such capacity, the “Administrative Agent”). 

W I T N E S S E T H:

WHEREAS, the Borrower, Administrative Agent and the Lenders are party to that certain Second Amended and Restated Credit Agreement, dated as of May 9, 2014 (as amended, restated, amended and restated, supplemented or otherwise modified from time to time prior to the date hereof, the “Credit Agreement”) pursuant to which the Lenders have, subject to the terms and conditions set forth therein, made certain credit available to and on behalf of the Borrower;

WHEREAS, the parties hereto desire to enter into this Amendment to (a) extend the maturity date of the Credit Agreement; (b) increase the Borrowing Base from $2,800,000,000 to $3,000,000,000, to be effective as of the Amendment Effective Date; (c) decrease the Total Commitment from $2,500,000,000 to $2,000,000,000, to be effective as of the Amendment Effective Date; and (d) amend certain other terms of the Credit Agreement in certain respects as provided in this amendment.

WHEREAS, in connection with this Amendment and the decrease of the aggregate amount of the Commitments, the Borrower and each of the Lenders agrees (severally and not jointly) that, notwithstanding anything to the contrary set forth in Section 4.2 of the Credit Agreement: (a) the respective Commitment of each of Citizens Bank, N.A., Credit Agricole Corporate and Investment Bank, Natixis, New York Branch, Société Générale, and SunTrust Bank (each an “Exiting Lender”) is hereby reduced to $0 (as reflected opposite its name on Schedule 1.1(a) attached hereto as Annex I) and, after giving effect thereto, each such Exiting Lender shall cease to be a Lender party to the Credit Agreement, and (b) the respective Commitment of each of the other Lenders that is party to the Credit Agreement immediately prior to the Amendment Effective Date (each a “Continuing Lender”) is hereby reduced, increased or maintained, as applicable, and otherwise rearranged and adjusted, to the amount set forth opposite such Continuing Lender’s name on the amended Schedule 1.1(a) attached hereto as Annex I.

NOW THEREFORE, for and in consideration of the mutual covenants and agreements herein contained and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Borrower, Administrative Agent and Lenders hereby agree as follows:

SECTION 1.         Definitions.  Unless otherwise defined in this Amendment, each capitalized term used herein has the meaning assigned to such term in the Credit Agreement.

SECTION 2.   Reduction in Total Commitments; Rearrangement of Commitments.  On the Amendment Effective Date (but subject to the stipulation set forth in Section 8  hereof), and notwithstanding anything to the contrary in Section 4.2 of the Credit Agreement, (i) each of the parties hereto hereby acknowledges and agrees that the Total Commitments are reduced from $2,5000,000,000 to $2,000,000,000 and (ii) each Lender (including each Exiting Lender and each Continuing Lender) hereby acknowledges and agrees (severally and not jointly) with the Borrower that the Commitment of each Exiting Lender is hereby reduced to $0 (as reflected opposite its name on Schedule 1.1(a) attached hereto

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as Annex I) and, after giving effect thereto, each such Exiting Lender shall cease to be a Lender party to the Credit Agreement, and (b) the respective Commitment of each of the Continuing Lenders is hereby reduced, increased or maintained, as applicable, and otherwise rearranged and adjusted, to the amount set forth opposite such Continuing Lender’s name on the amended Schedule 1.1(a) attached hereto as Annex I.

SECTION 3.         Amendments to Credit Agreement.

(a)        Section 1.1 of the Credit Agreement is hereby amended by inserting the following defined terms therein in appropriate alphabetical order:

“Anti-Corruption Laws” means all laws, rules, and regulations of any jurisdiction applicable to the Borrower or any of its Subsidiaries from time to time concerning or relating to bribery or corruption.

“Bail-In Action” means the exercise of any Write-Down and Conversion Powers by the applicable EEA Resolution Authority in respect of any liability of an EEA Financial Institution.

“Bail-In Legislation” means, with respect to any EEA Member Country implementing Article 55 of Directive 2014/59/EU of the European Parliament and of the Council of the European Union, the implementing law for such EEA Member Country from time to time which is described in the EU Bail-In Legislation Schedule.

“EEA Financial Institution” means (a) any institution established in any EEA Member Country which is subject to the supervision of an EEA Resolution Authority, (b) any entity established in an EEA Member Country which is a parent of an institution described in clause (a) of this definition, or (c) any institution established in an EEA Member Country which is a subsidiary of an institution described in clauses (a) or (b) of this definition and is subject to consolidated supervision with its parent.

“EEA Member Country” means any of the member states of the European Union, Iceland, Liechtenstein, and Norway.

“EEA Resolution Authority” means any public administrative authority or any Person entrusted with public administrative authority of any EEA Member Country (including any delegee) having responsibility for the resolution of any EEA Financial Institution.

“EU Bail-In Legislation Schedule” means the EU Bail-In Legislation Schedule published by the Loan Market Association (or any successor Person), as in effect from time to time.

“Sanctioned Country” means, at any time, a country, region or territory that is itself the subject or target of any Sanctions (at the time of this Amendment Effective Date, Crimea, Cuba, Iran, North Korea, Sudan, and Syria).

“Sanctions” means all economic or financial sanctions or trade embargoes imposed, administered or enforced from time to time by (a) the U.S. government, including those administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury or the U.S. Department of State, or (b) the United Nations Security Council, the

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European Union, any European Union member state, Her Majesty’s Treasury of the United Kingdom or other relevant sanctions authority.

“Second Amendment” shall mean that certain Second Amendment to Second Amended and Restated Credit Agreement, dated as of April 12, 2017, among the Borrower, the Lenders party thereto and the Administrative Agent.

“Second Amendment Effective Date” shall have the meaning given the term Amendment Effective Date in the Second Amendment.

“Write-Down and Conversion Powers” means, with respect to any EEA Resolution Authority, the write-down and conversion powers of such EEA Resolution Authority from time to time under the Bail-In Legislation for the applicable EEA Member Country, which write-down and conversion powers are described in the EU Bail-In Legislation Schedule.

(b)        The definition of “ABR” set forth in Section 1.1 of the Credit Agreement is hereby amended by inserting immediately prior to the period at the end of the first sentence of such definition the following proviso:

“; provided, further, that if, in any case, such rate is less than zero, the ABR shall be deemed to be zero”.

(c)        The definition of “Change in Law” set forth in Section 1.1 of the Credit Agreement is hereby amended by:

(i)   inserting an open parenthesis immediately before the first instance of the word “or”;

(ii)  inserting the word “of” immediately before clause (a);

(iii) inserting the words “or taking effect” immediately after the word “adoption”;

(iv) inserting “, implementation” immediately after the word “interpretation”; and

(v)  inserting the following parenthetical immediately before the first semicolon of such defined term, as amended:

“(or, with respect to any Lender, such later date on which such Lender becomes a party to this Agreement)”.

(d)        The definition of “Commitment” is hereby amended by (i) replacing each instance of “Closing Date” with the “Second Amendment Effective Date” and (ii) replacing “$2,500,000,000” with “$2,000,000,000”.

(e)        The defined term “Executive Order” set forth in Section 1.1 of the Credit Agreement is hereby deleted.

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(f)        The definition of “FATCA” set forth in Section 1.1 of the Credit Agreement is hereby amended by replacing the words “or any Treasury Regulations” with the words “any current or future Treasury Regulations” and inserting immediately after the word “thereof”, the following:

“, any agreement entered into pursuant to Section 1471(b)(1) of the Code, any intergovernmental agreement entered into in connection with the implementation of such sections of the Code, and any fiscal or regulatory legislation, rules or practices adopted pursuant to any such intergovernmental agreement”.

(g)        The definition of “Federal Funds Effective Rate” set forth in Section 1.1 of the Credit Agreement is hereby amended by inserting immediately prior to the period at the end of such definition the following proviso:

“; provided  that if the Federal Funds Effective Rate shall be less than zero, such rate shall be deemed to be zero for the purposes of this Agreement”

(h)        The definition of “Investment Grade Period” set forth in Section 1.1 of the Credit Agreement is hereby amended by (i) replacing “Ba1” with “Ba2” and (ii) replacing “BB+” with “BB”.

(i)         The definition of “Lender Default” set forth in Section 1.1 of the Credit Agreement is hereby amended by deleting the word “or” at the end of clause (iv) thereof, inserting a comma in place thereof, deleting the period at the end of clause (v) thereof, and inserting the following new phrase in place thereof:

“or (vi) a Lender or any Person that directly or indirectly controls such Lender, as the case may be, is or becomes the subject of a Bail-In Action.”

(j)         The definition of “LIBOR Rate” set forth in Section 1.1 of the Credit Agreement is hereby amended by inserting immediately prior to the period at the end of the first sentence of such definition the following proviso:

“; provided  that if, in any case, such rate is less than zero, the LIBOR Rate shall be deemed to be zero”.

(k)        The definition of “Maturity Date” set forth in Section 1.1 of the Credit Agreement is hereby amended by replacing the date “May 9, 2019” with the date “May 9, 2022”.

(l)         The defined term “Sanctioned Person” set forth in Section 1.1 of the Credit Agreement is hereby amended and restated in its entirety, to read as follows:

“Sanctioned Person” means, at any time, (a) any Person listed in any Sanctions-related list of designated Persons maintained by the Office of Foreign Assets Control of the U.S. Department of the Treasury, the U.S. Department of State, or by the United Nations Security Council, the European Union or, any European Union member state, Her Majesty’s Treasury of the United Kingdom or other relevant sanctions authority, (b) any Person operating, organized or resident in a Sanctioned Country or (c) any Person owned or controlled by any such Person or Persons described in the foregoing clauses (a) or (b).

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(m)       Section 1.1 of the Credit Agreement is hereby amended by deleting the defined term “Sanctions Laws and Regulations”.

(n)        Section 2.15(c)(i) of the Credit Agreement is hereby amended by inserting the phrase “subject to Section 13.28,” at the beginning of subclause (B) therein.

(o)        Section 3.1 of the Credit Agreement is hereby amended by inserting the following new clause (d) immediately following the existing clause (c):

“          (d)  Notwithstanding anything herein to the contrary, the Letter of Credit Issuer shall have no obligation hereunder to issue, and shall not issue, any Letter of Credit the proceeds of which would be made available to any Person (i) to fund any activity or business of or with any Sanctioned Person, or in any country or territory that, at the time of such funding, is the subject of any Sanctions or (ii) in any manner that would result in a violation of any Sanctions by any party to this Agreement.”

(p)        Section 4.3(c) of the Credit Agreement is hereby amended by inserting “or determination of the Borrowing Base upon the end of any Investment Grade Period pursuant to Section 2.14(h)” immediately after the first occurrence of the words “Borrowing Base”.

(q)        Section 5.2(b)(ii) of the Credit Agreement is hereby amended by inserting “or determination of the Borrowing Base upon the end of any Investment Grade Period pursuant to Section 2.14(h)” immediately after the reference to Section 2.14(e).

(r)        Section 5.4(c) of the Credit Agreement is hereby amended by inserting the following sentence immediately after the existing last sentence of such clause:

For purposes of determining withholding Taxes imposed under FATCA, from and after the Second Amendment Effective Date, the Borrower and the Administrative Agent shall treat (and the Lenders hereby authorize the Administrative Agent to treat) the Credit Agreement as not qualifying as a “grandfathered obligation” within the meaning of Treasury Regulation Section 1.1471-2(b)(2)(i).

(s)        Section 8.23 of the Credit Agreement is hereby amended and restated in its entirety as follows:

“          Section 8.23  Anti-Corruption Laws and Sanctions.  The Borrower has implemented and maintains in effect policies and procedures as it reasonably deems appropriate, in light of its business and international activities (if any), designed to ensure compliance by the Borrower, its Subsidiaries and their respective directors, officers and employees with Anti-Corruption Laws and applicable Sanctions, and the Borrower, its Subsidiaries and their respective officers and to the knowledge of the Borrower its directors and employees, are in compliance with Anti-Corruption Laws and applicable Sanctions in all material respects.  None of (a) the Borrower, any Subsidiary or to the knowledge of the Borrower or such Subsidiary any of their respective directors, officers or employees, or (b) to the knowledge of the Borrower, any agent of the Borrower or any Subsidiary that will act in any capacity in connection with the credit facility established hereby, is a Sanctioned Person.  No Borrowing or Letter of Credit, use of proceeds or other transaction contemplated by this Agreement will violate any Anti-Corruption Law or applicable Sanctions.”

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(t)         Section 8 of the Credit Agreement is hereby amended by inserting the following new Section 8.24 therein immediately following the existing Section 8.23 (as amended by this Amendment):

“          8.24.    EEA Financial Institutions.  No Credit Party is an EEA Financial Institution.”

(u)        Section 9.6 of the Credit Agreement is hereby amended by inserting the following sentence immediately after the existing sentence of such section:

“The Borrower will maintain in effect and enforce policies and procedures as it reasonably deems appropriate, in light of its business and international activities (if any), designed to ensure compliance by the Borrower, its Subsidiaries and their respective directors, officers, employees and agents with Anti-Corruption Laws and applicable Sanctions.”

(v)        Section 9.16 of the Credit Agreement is hereby amended and restated in its entirety as follows:

“          Section 9.16  Reserved.” 

(w)       Section 10.14 of the Credit Agreement is hereby amended by inserting the following sentence immediately after the existing sentence of such section:

“The Borrower will not request any Borrowing or Letter of Credit, and the Borrower shall not use, and shall procure that its Subsidiaries and its or their respective directors, officers, employees and agents shall not use, the proceeds of any Borrowing or Letter of Credit (A) in furtherance of an offer, payment, promise to pay, or authorization of the payment or giving of money, or anything else of value, to any Person in violation of any Anti-Corruption Laws, (B) for the purpose of funding, financing or facilitating any activities, business or transaction of or with any Sanctioned Person, or in any Sanctioned Country, to the extent such activities, business or transaction would be prohibited by Sanctions if conducted by a corporation incorporated in the United States or in a European Union member state, or (C) in any manner that would result in the violation of any Sanctions applicable to any party hereto.”

(x)        Section 13.5(b) of the Credit Agreement is hereby amended and restated in its entirety to read as follows:

“(b) to pay or reimburse the Administrative Agent, each Letter of Credit Issuer or each Lender for all of its reasonable and documented out-of-pocket costs and expenses incurred during any workout, restructuring or negotiations in respect thereof, or in connection with the enforcement or preservation of any rights under this Agreement, the other Credit Documents and any such other documents, in each case, whether before or after the occurrence of an Event of Default, including the reasonable fees, disbursements and other charges of one counsel, one counsel in each appropriate local jurisdiction and one financial advisor to the Administrative Agent (unless there is an actual or perceived conflict of interest in which case each such Person may retain its own counsel or financial advisor),”;

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(y)        Section 13.16 of the Credit Agreement is hereby amended by replacing “professional advisors” with the words “advisors, financial or business consultants, accountants”.

(z)        Section 13 of the Credit Agreement is hereby amended by inserting the following new Section 13.27 and Section 13.28 therein immediately following the existing Section 13.26:

“          13.27.  Flood Insurance Provisions.  Notwithstanding anything in this Agreement or any other Credit Document to the contrary, in no event is any “Building” (as defined in the applicable Flood Insurance Regulation) or “Manufactured (Mobile) Home” (as defined in the applicable Flood Insurance Regulation) included in the definition of “Mortgaged Property” (as defined in any Credit Document) and no “Building” or “Manufactured (Mobile) Home” is hereby encumbered by this Agreement or any other Credit Document.

            13.28.  Acknowledgement and Consent to Bail-In of EEA Financial Institutions.  Notwithstanding anything to the contrary in any Credit Document or in any other agreement, arrangement or understanding among any such parties, each party hereto acknowledges that any liability of any EEA Financial Institution arising under any Credit Document may be subject to the Write-Down and Conversion Powers of an EEA Resolution Authority and agrees and consents to, and acknowledges and agrees to be bound by:

(a)  the application of any Write-Down and Conversion Powers by an EEA Resolution Authority to any such liabilities arising hereunder which may be payable to it by any party hereto that is an EEA Financial Institution; and

(b)  the effects of any Bail-In Action on any such liability, including, if applicable:

(i)  a reduction in full or in part or cancellation of any such liability;

(ii)  a conversion of all, or a portion of, such liability into shares or other instruments of ownership in such EEA Financial Institution, its parent entity, or a bridge institution that may be issued to it or otherwise conferred on it, and that such shares or other instruments of ownership will be accepted by it in lieu of any rights with respect to any such liability under this Agreement or any other Credit Document; or

(iii)  the variation of the terms of such liability in connection with the exercise of the Write-Down and Conversion Powers of any EEA Resolution Authority.”

(aa)      Schedule 1.1(a) to the Credit Agreement as in effect immediately prior to the Amendment Effective Date is hereby amended and restated as set forth on the revised Schedule 1.1(a) attached to this Amendment as Annex I.

SECTION 4.         Borrowing Base.  On the Amendment Effective Date, the amount of the Borrowing Base under the Credit Agreement shall be increased from $2,800,000,000 to $3,000,000,000, which such increased Borrowing Base shall remain in effect thereafter until the Borrowing Base is otherwise adjusted in accordance with the Credit Agreement.  The Borrower, the Administrative Agent

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and the Lenders agree that the foregoing Borrowing Base redetermination shall constitute the May 1, 2017 Scheduled Redetermination of the Borrowing Base.

SECTION 5.         Representations and Warranties, Etc.  To induce the Administrative Agent and the Lenders to enter into this Amendment, the Borrower represents and warrants to the Administrative Agent and the Lenders that as of the Amendment Effective Date:

(a)        all representations and warranties made by any Credit Party contained in the Credit Agreement or in the other Credit Documents are true and correct in all material respects (unless such representations and warranties are already qualified by materiality, Material Adverse Effect or a similar qualification, in which case any such representation or warranty is true and correct in all respects) with the same effect as though such representations and warranties had been made on and as of the date hereof (except where such representations and warranties expressly relate to an earlier date, in which case such representations and warranties shall have been true and correct in all material respects (or, if such representations and warranties are already qualified by materiality, Material Adverse Effect or a similar qualification, true and correct in all respects) as of such earlier date);

(b)        each Credit Party executing this Amendment has the corporate or other organizational power and authority to execute, deliver and carry out the terms and provisions of this Amendment and has taken all necessary corporate or other organizational action to authorize the execution, delivery and performance of this Amendment;

(c)        the Credit Agreement as amended hereby and each other Credit Document constitutes the legal, valid and binding obligation of such Credit Party enforceable in accordance with its terms, subject to the effects of bankruptcy, insolvency, fraudulent conveyance, reorganization and other similar laws relating to or affecting creditors’ rights generally and general principles of equity (whether considered in a proceeding in equity or law); and

(d)        no Default or Event of Default exists under the Credit Agreement or any of the other Credit Documents.

SECTION 6.         Ratification.  The Borrower and each other Credit Party hereby ratifies and confirms, as of the Amendment Effective Date, (a) the covenants and agreements contained in each Credit Document to which it is a party, including, in each case, as such covenants and agreements may be modified by this Amendment and the transactions contemplated thereby and (b) all of the Obligations under the Credit Agreement and the other Credit Documents.  As of the Amendment Effective Date, the Credit Agreement and each other Credit Document remains in full force and effect.

SECTION 7.         Effectiveness.  This Amendment will take effect on the date on which the following conditions are satisfied or waived in accordance with Section 13.1 of the Credit Agreement (the “Amendment Effective Date”): 

(a)        The Administrative Agent shall have received executed counterparts of this Amendment from the Borrower, each of the Guarantors, the Administrative Agent and each of the Lenders (including each Exiting Lender and each Continuing Lender).

(b)        The Administrative Agent shall have received executed counterparts of that certain Fee Letter dated as of the date hereof from the Borrower.

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(c)        The Administrative Agent shall have received a certificate of the Credit Parties, dated the Amendment Effective Date, executed by the President or any Vice President and the Secretary or any Assistant Secretary of each Credit Party, and attaching a copy of the resolutions, in form and substance reasonably satisfactory to the Administrative Agent, of the board of directors or managers of each Credit Party (or a duly authorized committee thereof) authorizing the execution, delivery and performance of this Amendment (including, but not limited to, the extension of the Maturity Date).

(d)        The Administrative Agent shall have received the executed legal opinion of Vinson & Elkins LLP, counsel to the Borrower, in form and substance reasonably satisfactory to the Administrative Agent.  The Borrower, the other Credit Parties and the Administrative Agent hereby instruct such counsel to deliver such legal opinion.

(e)        The Administrative Agent shall have received the amendment fees and all reasonable out-of-pocket fees, costs and expenses incurred in connection with the negotiation, preparation, execution and delivery of this Amendment and related documents (including the reasonable fees, charges and disbursements of counsel to the Administrative Agent).

The Administrative Agent shall notify the Borrower and the Lenders of the Amendment Effective Date, and such notice shall be conclusive and binding.

SECTION 8.         Stipulation Regarding Execution by Exiting Lenders.  Each party hereto hereby acknowledges and agrees (severally and not jointly) that (a) each Exiting Lender has executed and delivered this Amendment for purposes of Section 2  hereof and not for any other purpose, (b) after giving effect to the reduction and rearrangement of Commitments and the other transactions pursuant to Section 2  hereof, (i) each Exiting Lender will no longer have any Commitments, outstanding Loans or Letter of Credit Exposures under the Credit Agreement and (ii) the Continuing Lenders shall comprise all of the Lenders for purposes of approving the amendments to the Credit Agreement that are implemented by this Amendment, and (c) the reduction and rearrangement of Commitments and the other transactions pursuant to Section 2  hereof shall be deemed to have occurred immediately prior to the effectiveness of the amendments implemented pursuant to Section 3  hereof and the redetermination of the Borrowing Base pursuant to Section 5  hereof.

SECTION 9.         Additional Covenant.  On or before May 12, 2017 (or such later date as the Administrative Agent may agree in its sole and absolute discretion), the Borrower covenants and agrees that all documents and instruments, including Uniform Commercial Code or other applicable personal property and financing statements and Mortgages or amendments and supplements to existing Mortgages securing the Credit Agreement, reasonably requested by the Administrative Agent to be filed, registered or recorded to create or continue, as applicable, the Liens intended to be created by any Security Document and perfect such Liens to the extent required by, and with the priority required by, such Security Document shall have been delivered to the Administrative Agent for filing, registration or recording and none of the Collateral shall be subject to any other pledges, security interests or mortgages, except for Liens permitted under Section 10.2 of the Credit Agreement.

SECTION 10.       Counterparts.  This Amendment may be executed by one or more of the parties to this Amendment on any number of separate counterparts (including by facsimile or other electronic transmission, i.e. a “pdf’ or a “tif’), and all of said counterparts taken together shall be deemed to constitute one and the same instrument.  A set of the copies of this Amendment signed by all the parties shall be lodged with the Borrower and the Administrative Agent.

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SECTION 11.       Severability.  Any provision of this Amendment that is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.

SECTION 12.       Integration.  This Amendment and the other Credit Documents represent the agreement of the Credit Parties, the Administrative Agent and the Lenders with respect to the subject matter hereof and thereof, and there are no promises, undertakings, representations or warranties by the Credit Parties, the Administrative Agent nor any Lender relative to subject matter hereof not expressly set forth or referred to herein or in the other Credit Documents.

SECTION 13.       GOVERNING LAW.  THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK.

SECTION 14.       Successors and Assigns.  This Amendment shall be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns permitted under the Credit Agreement (including any Affiliate of a Letter of Credit Issuer that issues any Letter of Credit).

SECTION 15.       Miscellaneous.  (a) On and after the effectiveness of this Amendment, each reference in each Credit Document to “the Credit Agreement”, “thereunder”, “thereof” or words of like import referring to the Credit Agreement shall mean and be a reference to the Credit Agreement as amended, waived or otherwise modified by this Amendment and (b) this Amendment is a Credit Document executed pursuant to the Credit Agreement and shall (unless otherwise expressly indicated therein) be construed, administered and applied in accordance with the terms and provisions of the Credit Agreement.

(Remainder of Page Left Intentionally Blank)

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IN WITNESS WHEREOF, each of the parties hereto has caused a counterpart of this Amendment to be duly executed and delivered as of the Amendment Effective Date.

CONCHO RESOURCES INC., as Borrower

By:       /s/ Brenda R. Schroer                          

Name:  Brenda R. Schroer

Title:    Vice President, Chief Accounting Officer and Treasurer

COG OPERATING LLC

CONCHO OIL & GAS LLC

QUAIL RANCH LLC

COG REALTY LLC

COG HOLDINGS LLC

DELAWARE RIVER SWD, LLC

COG PRODUCTION LLC
MONGOOSE MINERALS LLC

            each as Guarantor

By:       /s/ Brenda R. Schroer                          

Name:  Brenda R. Schroer

Title:    Vice President, Chief Accounting Officer and Treasurer

COG ACREAGE LP

            as Guarantor

By:  COG Production LLC, its general partner

By:       /s/ Brenda R. Schroer                          

Name:  Brenda R. Schroer

Title:    Vice President, Chief Accounting Officer and Treasurer

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

JPMORGAN CHASE BANK, N.A., as Administrative Agent and Lender

By:       /s/ Darren Vanek                                 

Name:  Darren Vanek

Title:    Authorized Officer

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

BANK OF AMERICA, N.A., as Lender

By:       /s/ Alia Qaddumi                                 

Name:  Alia Qaddumi

Title:    Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

WELLS FARGO BANK, N.A., as Lender

By:       /s/ Edward Pak                                    

Name:  Edward Pak

Title:    Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

BARCLAYS BANK PLC, as Lender

By:       /s/ Christopher Aitkin                          

Name:  Christopher Aitkin

Title:    Assistant Vice President

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

BANK OF MONTREAL, as Lender

By:       /s/ Gumaro Tijerina                             

Name:  Gumaro Tijerina

Title:    Managing Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

CAPITAL ONE, NATIONAL ASSOCIATION, as Lender

By:       /s/ Wesley Fontana                              

Name:  Wesley Fontana

Title:    Senior Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

CITIBANK, N.A., as Lender

By:       /s/ Cliff Vaz                                        

Name:  Cliff Vaz

Title:    Vice President

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

ING CAPITAL LLC, as Lender

By:       /s/ Josh Strong                                     

Name:  Josh Strong

Title:    Director

By:       /s/ Charles Hall                                   

Name:  Charles Hall

Title:    Managing Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

MUFG UNION BANK, N.A. F/K/A UNION BANK, N.A., as Lender

By:       /s/ Mark Oberreuter                             

Name:  Mark Oberreuter

Title:    Vice President

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

U.S. BANK NATIONAL ASSOCIATION, as Lender

By:       /s/ Tara McLean                                  

Name:  Tara McLean

Title:    Vice President

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, as Lender

By:       /s/ Nupur Kumar                                 

Name:  Nupur Kumar

Title:    Authorized Signatory

By:       /s/ Nicholas Goss                                

Name:  Nicholas Goss

Title:    Authorized Signatory

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

PNC BANK, NATIONAL ASSOCIATION, as Lender

By:       /s/ Sandra Aultman                             

Name:  Sandra Aultman

Title:    Managing Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

ROYAL BANK OF CANADA, as Lender

By:       /s/ Mark Lumpkin, Jr.                         

Name:  Mark Lumpkin, Jr.

Title:    Authorized Signatory

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

BRANCH BANKING AND TRUST COMPANY, as Lender

By:       /s/ Parul June                                      

Name:  Parul June

Title:    Senior Vice President

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

COMPASS BANK, as Lender

By:       /s/ Mark H. Wolf                                 

Name:  Mark H. Wolf

Title:    Senior Vice President

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

CANADIAN IMPERIAL BANK OF COMMERCE, NEW YORK BRANCH, as Lender

By:       /s/ Trudy Nelson                                 

Name:  Trudy Nelson

Title:    Authorized Signatory

By:       /s/ Donovan Broussard                       

Name:  Donovan Broussard

Title:    Authorized Signatory

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

COMERICA BANK, as Lender

By:       /s/ Garrett R. Merrell                           

Name:  Garrett R. Merrell

Title:    Relationship Manager

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

DNB CAPITAL LLC, as Lender

By:       /s/ Byron Cooley                                 

Name:  Byron Cooley

Title:    Senior Vice President

By:       /s/ James Grubb                                  

Name:  James Grubb

Title:    Vice President

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

KEYBANK NATIONAL ASSOCIATION, as Lender

By:       /s/ George E McKean                          

Name:  George E McKean

Title:    Senior Vice President

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

REGIONS BANK, as Lender

By:       /s/ Daniel Steele                                  

Name:  Daniel Steele

Title:    Managing Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

SUMITOMO MITSUI BANKING CORPORATION, as Lender

By:       /s/ Katsuyuki Kubo                             

Name:  Katsuyuki Kubo

Title:    Managing Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK, as Exiting Lender

By:       /s/ Dixon Schultz                                

Name:  Dixon Schultz

Title:    Managing Director

By:       /s/ Nimisha Srivastav                          

Name:  Nimisha Srivastav

Title:    Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

NATIXIS, NEW YORK BRANCH, as Exiting Lender

By:       /s/ Carlos Quinteros                            

Name:  Carlos Quinteros

Title:    Managing Director

By:       /s/ Brice Le Foyer                               

Name:  Brice Le Foyer

Title:    Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

CITIZENS BANK, N.A., as Exiting Lender

By:       /s/ Scott Donaldson                             

Name:  Scott Donaldson

Title:    Senior Vice President

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

SOCIÉTÉ GÉNÉRALE, as Exiting Lender

By:       /s/ Max Sonnonstine                           

Name:  Max Sonnonstine

Title:    Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

SUNTRUST BANK, as Exiting Lender

By:       /s/ Yann Pirio                                      

Name:  Yann Pirio

Title:    Managing Director

Signature Page - Concho Resources Inc.

Second Amendment to Second Amended and Restated Credit Agreement

ANNEX I

Schedule 1.1(a)

Lender	Commitment	Applicable Percentage
JPMORGAN CHASE BANK, N.A.	$150,000,000.00	7.50000000000%
BANK OF AMERICA, N.A.	$150,000,000.00	7.50000000000%
WELLS FARGO BANK, N.A.	$150,000,000.00	7.50000000000%
BARCLAYS BANK PLC	$107,000,000.00	5.35000000000%
BANK OF MONTREAL	$107,000,000.00	5.35000000000%
CAPITAL ONE, NATIONAL ASSOCIATION	$107,000,000.00	5.35000000000%
CITIBANK, N.A.	$107,000,000.00	5.35000000000%
ING CAPITAL LLC	$107,000,000.00	5.35000000000%
MUFG UNION BANK, N.A. F/K/A UNION BANK, N.A.	$107,000,000.00	5.35000000000%
U.S. BANK NATIONAL ASSOCIATION	$107,000,000.00	5.35000000000%
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH	$107,000,000.00	5.35000000000%
PNC BANK, NATIONAL ASSOCIATION	$107,000,000.00	5.35000000000%
ROYAL BANK OF CANADA	$107,000,000.00	5.35000000000%
BRANCH BANKING AND TRUST COMPANY	$60,000,000.00	3.00000000000%
COMPASS BANK	$60,000,000.00	3.00000000000%
CANADIAN IMPERIAL BANK OF COMMERCE, NEW YORK BRANCH	$60,000,000.00	3.00000000000%
COMERICA BANK	$60,000,000.00	3.00000000000%
DNB CAPITAL LLC	$60,000,000.00	3.00000000000%
KEYBANK NATIONAL ASSOCIATION	$60,000,000.00	3.00000000000%
REGIONS BANK	$60,000,000.00	3.00000000000%
SUMITOMO MITSUI BANKING CORPORATION	$60,000,000.00	3.00000000000%
CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK	$0.00	0.00000000000%
NATIXIS, NEW YORK BRANCH	$0.00	0.00000000000%
CITIZENS BANK, N.A.	$0.00	0.00000000000%
SOCIÉTÉ GÉNÉRALE	$0.00	0.00000000000%
SUNTRUST BANK	$0.00	0.00000000000%
Total:	$2,000,000,000.00	100.00000000000%

Annex I

Second Amendment to Second Amended and Restated Credit Agreement

EX-31

 

EXHIBIT 31.1

CERTIFICATIONS

I, Timothy A. Leach, certify that:

1.I have reviewed this quarterly report of Concho Resources Inc. (the “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 (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 3, 2017	/s/  Timothy A. Leach
		Timothy A. Leach
		Director, Chairman of the Board of Directors and Chief Executive
		Officer
		(Principal Executive Officer)

EX-31

 

EXHIBIT 31.2

CERTIFICATIONS

I, Jack F. Harper, certify that:

1.I have reviewed this quarterly report of Concho Resources Inc. (the “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 (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 3, 2017	/s/  Jack F. Harper
		Jack F. Harper
		President and Chief Financial Officer
		(Principal Financial Officer)

EX-32

 

EXHIBIT 32.1

Certification of Chief Executive Officer of Concho Resources Inc.

(Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002)

In connection with the quarterly report of Concho Resources Inc. (the “Company”), as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Timothy A. Leach, Chief Executive Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge:

(1)the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	August 3, 2017	/s/  Timothy A. Leach
		Timothy A. Leach
		Director, Chairman of the Board of Directors and Chief Executive
		Officer
		(Principal Executive Officer)

EX-32

 

EXHIBIT 32.2

Certification of Chief Financial Officer of Concho Resources Inc.

(Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002)

In connection with the quarterly report of Concho Resources Inc. (the “Company”), as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Jack F. Harper, Chief Financial Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge:

(1)the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	August 3, 2017	/s/  Jack F. Harper
		Jack F. Harper
		President and Chief Financial Officer
		(Principal Financial Officer)

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 31, 2017
Document Documentand Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Trading Symbol	CXO
Entity Registrant Name	CONCHO RESOURCES INC
Entity Central Index Key	0001358071
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		148,712,171

XML

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 662	$ 53
Accounts receivable, net of allowance for doubtful accounts:
Oil and natural gas	227	220
Joint operations and other	241	238
Derivative instruments	135	4
Prepaid costs and other	39	31
Total current assets	1,304	546
Property and equipment:
Oil and natural gas properties, successful efforts method	19,710	18,476
Accumulated depletion and depreciation	(7,904)	(7,390)
Total oil and natural gas properties, net	11,806	11,086
Other property and equipment, net	234	216
Total property and equipment, net	12,040	11,302
Funds held in escrow	60	43
Deferred loan costs, net	15	11
Intangible asset - operating rights, net	24	24
Inventory	14	16
Noncurrent derivative instruments	90	0
Other assets	44	177
Total assets	13,591	12,119
Current liabilities:
Trade	26	28
Revenue payable	129	132
Accrued drilling costs	446	359
Derivative instruments	0	82
Other current liabilities	165	152
Total current liabilities	766	753
Long-term debt	2,741	2,741
Deferred income taxes	1,212	766
Noncurrent derivative instruments	0	96
Asset retirement obligations and other long-term liabilities	143	140
Commitments and contingencies (Note 9)
Stockholders' equity:
Common stock, $0.001 par value; 300,000,000 authorized; 149,314,618 and 146,488,685 shares issued at June 30, 2017 and December 31, 2016, respectively	0	0
Additional paid-in capital	7,108	6,783
Retained earnings	1,686	884
Treasury stock, at cost; 591,650 and 429,708 shares at June 30, 2017 and December 31, 2016, respectively	(65)	(44)
Total stockholders' equity	8,729	7,623
Total liabilities and stockholders' equity	$ 13,591	$ 12,119

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	149,314,618	146,488,685
Treasury shares	591,650	429,708

XML

Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Operating revenues:
Oil sales	$ 461	$ 339	$ 963	$ 581
Natural gas sales	106	57	216	99
Total operating revenues	567	396	1,179	680
Operating costs and expenses:
Oil and natural gas production	100	77	187	169
Production and ad valorem taxes	44	33	92	56
Exploration and abandonments	20	21	35	44
Depreciation, depletion and amortization	281	281	564	591
Accretion of discount on asset retirement obligations	2	1	4	3
Impairments of long-lived assets	0	0	0	1,525
General and administrative (including non-cash stock-based compensation of $14 and $12 for the three months ended June 30, 2017 and 2016, respectively, and $26 and $28 for the six months ended June 30, 2017 and 2016, respectively)	60	53	116	107
(Gain) loss on derivatives	(209)	298	(495)	217
(Gain) loss on disposition of assets, net	0	1	(654)	(110)
Total operating costs and expenses	298	765	(151)	2,602
Income (loss) from operations	269	(369)	1,330	(1,922)
Other income (expense):
Interest expense	(39)	(55)	(79)	(109)
Loss on extinguishment of debt	(1)	0	(1)	0
Other, net	16	0	16	(7)
Total other expense	(24)	(55)	(64)	(116)
Income (loss) before income taxes	245	(424)	1,266	(2,038)
Income tax (expense) benefit	(93)	158	(464)	752
Net income (loss)	$ 152	$ (266)	$ 802	$ (1,286)
Earnings per share:
Basic net income (loss)	$ 1.02	$ (2.04)	$ 5.41	$ (9.94)
Diluted net income (loss)	$ 1.02	$ (2.04)	$ 5.39	$ (9.94)

XML

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Non-cash stock-based compensation	$ 14	$ 12	$ 26	$ 28

XML

Consolidated Statement of Stockholders Equity - USD ($) shares in Thousands, $ in Millions	Total	Common Stock [Member]	Additional Paid In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]
Adoption of ASU No. 2016-09 (Note 2) | Accounting Standards Update 2016-09 [Member]	$ 8	$ 0	$ 8	$ 0	$ 0
BALANCE at Jan. 1, 2017	7,631	$ 0	6,791	884	$ (44)
BALANCE, Shares at Dec. 31, 2016		146,489			430
BALANCE at Dec. 31, 2016	7,623	$ 0	6,783	884	$ (44)
Net income (loss)	802	$ 0	0	802	$ 0
Common stock issued in business combination (Shares)		2,177			0
Common stock issued in business combination	291	$ 0	291	0	$ 0
Stock options exercised	0	$ 0	0	0	$ 0
Stock options exercised, shares		20			0
Grants of restricted stock, shares		439			0
Performance unit share conversion, shares		249			0
Cancellation of restricted stock, shares		(59)			0
Stock-based compensation	26	$ 0	26	0	$ 0
Purchase of treasury stock	(21)	$ 0	0	0	$ (21)
Purchase of treasury stock, shares		0			162
BALANCE, Shares at Jun. 30, 2017		149,315			592
BALANCE at Jun. 30, 2017	$ 8,729	$ 0	$ 7,108	$ 1,686	$ (65)

XML

Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 802	$ (1,286)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation, depletion and amortization	564	591
Accretion of discount on asset retirement obligations	4	3
Impairments of long-lived assets	0	1,525
Exploration and abandonments, including dry holes	24	39
Non-cash stock-based compensation expense	26	28
Deferred income taxes	454	(740)
(Gain) loss on disposition of assets, net	(654)	(110)
(Gain) loss on derivatives	(495)	217
Net settlements received from (paid on) derivatives	96	427
Loss on extinguishment of debt	1	0
Other non-cash items	1	8
Changes in operating assets and liabilities, net of acquisitions and dispositions:
Accounts receivable	(24)	60
Prepaid costs and other	(3)	(9)
Inventory	1	3
Accounts payable	(2)	7
Revenue payable	(2)	(59)
Other current liabilities	12	(28)
Net cash provided by (used in) operating activities	805	676
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures on oil and natural gas properties	(863)	(651)
Additions to property, equipment and other assets	(30)	(16)
Proceeds from the disposition of assets	803	294
Direct transaction costs for disposition of assets	(18)	0
Funds held in escrow	(60)	0
Contributions to equity method investments	0	(39)
Net cash provided by (used in) investing activities	(168)	(412)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of debt	105	0
Payments of debt	(105)	0
Excess tax benefit (deficiency) from stock-based compensation	0	(1)
Payments for loan costs	(7)	0
Purchase of treasury stock	(21)	(11)
Net cash provided by (used in) financing activities	(28)	(12)
Net increase (decrease) in cash and cash equivalents	609	252
Cash and cash equivalents at beginning of period	53	229
Cash and cash equivalents at end of period	662	481
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Issuance of common stock for business combinations	$ 291	$ 231

XML

Organization and nature of operations

6 Months Ended

Jun. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and nature of operations

Note 1.Organization and nature of operations

Concho Resources Inc. (the “Company”) is a Delaware corporation formed on February 22, 2006. The Company’s principal business is the acquisition, development, exploration and production of oil and natural gas properties primarily located in the Permian Basin of southeast New Mexico and west Texas.

XML

Summary of significant accounting policies

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Summary of significant accounting policies

Note 2. Summary of significant accounting policies

Principles of consolidation. The consolidated financial statements of the Company include the accounts of the Company and its 100 percent owned subsidiaries.The Company consolidates the financial statements of these entities. All material intercompany balances and transactions have been eliminated.

Reclassifications. Certain prior period amounts have been reclassified to conform to the 2017 presentation. These reclassifications had no impact on net income (loss), total stockholders’ equity or total cash flows.

Use of estimates in the preparation of financial statements. Preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure 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 could differ from these estimates. Depletion of oil and natural gas properties is determined using estimates of proved oil and natural gas reserves. There are numerous uncertainties inherent in the estimation of quantities of proved reserves and in the projection of future rates of production and the timing of development expenditures. Similarly, evaluations for impairment of proved and unproved oil and natural gas properties are subject to numerous uncertainties including, among others, estimates of future recoverable reserves, commodity price outlooks and prevailing market rates of other sources of income and costs. Other significant estimates include, but are not limited to, asset retirement obligations, fair value of stock-based compensation, fair value of business combinations, fair value of nonmonetary exchanges, fair value of derivative financial instrumentsand income taxes.

Interim financial statements. The accompanying consolidated financial statements of the Company have not been audited by the Company’s independent registered public accounting firm, except that the consolidated balance sheet at December 31, 2016 is derived from audited consolidated financial statements. In the opinion of management, the accompanying consolidated financial statements reflect all adjustments necessary to present fairly the Company’s consolidated financial statements. All such adjustments are of a normal, recurring nature. In preparing the accompanying consolidated financial statements, management has made certain estimates and assumptions that affect reported amounts in the consolidated financial statements and disclosures of contingencies. Actual results may differ from those estimates. The results for interim periods are not necessarily indicative of annual results.

Certain disclosures have been condensed in or omitted from these consolidated financial statements. Accordingly, these condensed notes to the consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

Cash equivalents. The Company considers all cash on hand, depository accounts held by banks, money market accounts and investments with an original maturity of three months or less to be cash equivalents. The Company’s cash and cash equivalents are held in financial institutions in amounts that exceed the insurance limits of the Federal Deposit Insurance Corporation. However, management believes that the Company’s counterparty risks are minimal based on the reputation and history of the institutions selected. The majority of the Company’s cash is invested in stable value government money market funds.

Equity method investments. At December 31, 2016, the Company owned a 50 percent membership interest in a midstream joint venture, Alpha Crude Connector, LLC (“ACC”), thatoperated a crude oil gathering and transportation system in the northern Delaware Basin. InFebruary 2017, the Company closed on the divestiture of its ownership interest in ACC. See Note 4 for additional information regarding the disposition of ACC.

The Company accounted for its investment in ACC under the equity method of accounting for investments in unconsolidated affiliates. The Company’s net investment in ACC was approximately $129 million at December 31, 2016, and was included in other assets in the Company’s consolidated balance sheet. Gains and losses incurred from the Company’s equity investment in ACC were recorded in other income (expense) in its consolidated statements of operations.

The Company owns a 23.75 percent membership interest in an entity that operates a crude oil gathering and transportation system in the southern Delaware Basin. The Company accounts for its investment under the equity method of accounting for investments in unconsolidated affiliates. The Company’s net investment was approximately $45 million and $42 million at June 30,2017 and December 31, 2016, respectively, and is included in other assets in the Company’s consolidated balance sheets. Gains and losses incurred from the Company’s equity investment are recorded in other income (expense) in its consolidated statements of operations.

Revenue recognition.Oil and natural gas revenues are recorded at the time of physical transfer of such products to the purchaser, which for the Company is primarily at the wellhead. The Company follows the sales method of accounting for oil and natural gas sales, recognizing revenues based on the Company’s actual proceeds from the oil and natural gas sold to purchasers.

General and administrative expense. The Company receives fees for the operation of jointly-owned oil and natural gas properties during the drilling and production phases and records such reimbursements as reductions of general and administrative expense. The Company earned reimbursements of approximately $4 million for each of the three months ended June 30,2017 and 2016 and $8 million for each of the six months ended June 30,2017 and 2016.

Recently adopted accounting pronouncements. The Company adopted Accounting Standards Update (“ASU”) No. 2016-09, “Compensation–Stock Compensations (Topic 718): Improvements to Employee Share-based Payment Accounting,”on January 1, 2017. The adoption did not have an impact on prior period consolidated financial statements. The Company elected to account for forfeitures of share-based payments as they occur. At December 31, 2016, the Company had not recorded compensation expense of approximately $8 million based on forecasted forfeitures nor the associated deferred tax benefit of approximately $3 million. The Company recognized all excess tax benefits not previously recorded, which totaled approximately $5 million at December 31, 2016. Upon adoption, the Company recorded a cumulative-effect adjustment, which decreased retained earnings by less than $1 million, increased additional paid-in capital by approximately $8 million, and decreased net deferred income taxes by approximately $8 million.The Company elected to prospectively classify excess tax benefits and deficiencies as operating activities on the consolidated statements of cash flows and will prospectively record those excess tax benefits and deficiencies as discrete items in the income tax provision in the consolidated statements of operations. Under the new standard, for the three and six months ended June 30,2017, the Company recorded excess tax deficiencies of approximately $2 million and excess tax benefits of approximately $6 million, respectively, as offsets to the Company’s income tax provision. Also under the new standard, for the three and six months ended June 30,2017, the Company recorded forfeitures of share-based payments of approximately $1 million and $6 million, respectively.

New accounting pronouncements issued but not yet adopted. In May 2014, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. This new revenue recognition model provides a five-step analysis in determining when and how revenue is recognized. The new model will require revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration a company expects to receive in exchange for those goods or services.

In August 2015, the FASB issued ASU No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” which deferred the effective date of ASU No. 2014-09 by one year. That new standard is now effective for annual reporting periods beginning after December 15, 2017. The Company expects to use the modified retrospective method to adopt the standard, meaning the cumulative effect of initially applying the standard will be recognized in the most current period presented in the financial statements. The Company has substantially completed its internal evaluation of the adoption of this standard and does not expect this new guidance will have a material impact on its consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842),” which supersedes current lease guidance. The new lease standard requires all leases with a term greater than one year to be recognized on the balance sheet while maintaining substantially similar classifications for financing and operating leases. Lease expense recognition on the consolidated statements of operations will be effectively unchanged. This guidance is effective for reporting periods beginning after December 15, 2018, and early adoption is permitted. The Company does not plan to early adopt the standard. The Company enters into lease agreements to support its operations. These agreements are for leases on assets such as office space, vehicles, field services, well equipment and drilling rigs. The Company is currently in the process of reviewing all contracts that could be applicable to this new guidance. The Company believes this new guidance will have a moderate impact to its consolidated balance sheets due to the recognition of right-of-use assets and lease liabilities that are not currently recognized under currently applicable guidance.

In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments–Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” which replaces the current “incurred loss” methodology for recognizing credit losses with an “expected loss” methodology. This new methodology requires that a financial asset measured at amortized cost be presented at the net amount expected to be collected. This standard is intended to provide more timely decision-useful information about the expected credit losses on financial instruments. This guidance is effective for fiscal years beginning after December 15, 2019, and early adoption is allowed as early as fiscal years beginning after December 15, 2018. The Company does not believe this new guidance will have a material impact on its consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” with the objective of adding guidance to assist in evaluating whether transactions should be accounted for as asset acquisitions or as business combinations. The guidance provides a screen to determine when an integrated set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the acquired assets is concentrated in a single asset or a group of similar assets, the set is not a business. If the screen is not met, to be considered a business, the set must include an input and a substantive process that together significantly contribute to the ability to create output. This new guidance is effective for annual periods beginning after December 15, 2017, and early adoption is allowed. The Company is evaluating the impact this new guidance will have on its consolidated financial statements. The new guidance could result in more acquisitions of oil and natural gas properties being accounted for as asset acquisitions instead of business combinations.

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Exploratory well costs

6 Months Ended

Jun. 30, 2017

Disclosure Exploratory Well Costs Capitalized Exploratory Well Activity [Abstract]

Exploratory well costs

Note 3.Exploratory well costs

The Company capitalizes exploratory well costs until a determination is made that the well has either found proved reserves or that it is impaired. After an exploratory well has been completed and found oil and natural gas reserves, a determination may be pending as to whether the oil and natural gas reserves can be classified as proved. In those circumstances, the Company continues to capitalize the well or project costs pending the determination of proved status if (i) the well has found a sufficient quantity of reserves to justify its completion as a producing well and (ii) the Company is making sufficient progress assessing the reserves and the economic and operating viability of the project.The capitalized exploratory well costs are carried in unproved oil and natural gas properties. See Note 15 for the proved and unproved components of oil and natural gas properties. If the exploratory well is determined to be impaired, the well costs are charged to exploration and abandonments expense in the consolidated statements of operations.

The following table reflects the Company’s net capitalized exploratory well activity during the six months ended June 30,2017:

		Six Months Ended
(in millions)		June 30, 2017
Beginning capitalized exploratory well costs		$	151
	Additions to exploratory well costs pending the determination of proved reserves		268
	Reclassifications due to determination of proved reserves		(126)
Ending capitalized exploratory well costs		$	293

The following table provides an aging at June 30,2017 and December 31, 2016 of capitalized exploratory well costs based on the date drilling was completed:

			June 30,		December 31,
(dollars in millions)			2017		2016
Capitalized exploratory well costs that have been capitalized for a period of one year or less		$	288	$	141
Capitalized exploratory well costs that have been capitalized for a period greater than one year			5		10
	Total capitalized exploratory well costs	$	293	$	151
Number of projects with exploratory well costs that have been capitalized for a period greater
	than one year		6		8

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Acquisitions and divestitures

6 Months Ended

Jun. 30, 2017

Acquisitions and Divestitures [Abstract]

Acquisitions and divestitures

Note 4. Acquisitions and divestitures

Northern Delaware Basin acquisition. In April 2017, the Company closed on the remainder of its acquisition in the Northern Delaware Basin. As consideration for the entire acquisition, the Company paid approximately $159 million in cash, of which $43 million was held in escrow at December 31, 2016, and issued to the seller approximately 2.2 million shares of its common stock with an approximate value of $291 million. The acquisition is subject to customary post-closing adjustments.

ACC divestiture. In February 2017, the Company closed on the divestiture of its ownership interest in ACC. The Company and its joint venture partner entered into separate agreements to sell 100 percent of their respective ownership interests in ACC. After adjustments for debt and working capital, the Company received cash proceeds from the sale of approximately $803 million. After direct transaction costs, the Company recorded a pre-tax gain on disposition of assets of approximately $655 million. The Company’s net investment in ACC at the time of closing was approximately $129 million.

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Incentive plans

6 Months Ended

Jun. 30, 2017

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

Incentive plans

Note 5.Stock incentive plan

The Company’s 2015 Stock Incentive Plan provides for granting stock options, restricted stock awards and performance awards to directors, officers and employees of the Company. The restricted stock-based compensation awards generally vest over a period ranging from one to eight years.

A summary of the Company’s Stock Incentive Plan activity for the six months ended June 30,2017 is presented below:

		Restricted		Stock		Performance
		Stock Shares		Options		Units
Outstanding at December 31, 2016			1,157,270		20,000		331,526
	Awards granted (a)		439,484		-		108,398
	Options exercised		-		(20,000)		-
	Awards cancelled / forfeited		(59,614)		-		(43,333)
	Lapse of restrictions		(354,909)		-		-
Outstanding at June 30, 2017		1,182,231		-		396,591
(a) Weighted average grant date fair value per share/unit		$	121.81	$	-	$	183.48

The following table reflects the future stock-based compensation expense to be recorded for all the stock-based compensation awards that were outstanding at June 30,2017:

(in millions)
Remaining 2017		$	35
2018			48
2019			25
Thereafter			8
	Total	$	116

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Disclosures about fair value measurements

6 Months Ended

Jun. 30, 2017

Disclosure Fair Value Narrative [Abstract]

Disclosures about fair value measurements

Note 6.Disclosures about fair value measurements

The Company uses a valuation framework based upon inputs that market participants use in pricing an asset or liability, which are classified into two categories: observable inputs and unobservable inputs. Observable inputs represent market data obtained from independent sources, whereas unobservable inputs reflect a company’s own market assumptions, which are used if observable inputs are not reasonably available without undue cost and effort. These two types of inputs are further prioritized into the following fair value input hierarchy:

Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. The Company considers active markets to be those in which transactions for the assets or liabilities occur in sufficient frequency and volume to provide pricing information on an ongoing basis.

Level 2: Quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability. This category includes those derivative instruments that the Company values using observable market data. Substantially all of these inputs are observable in the marketplace throughout the full term of the derivative instrument, can be derived from observable data, or supported by observable levels at which transactions are executed in the marketplace. Level 2 instruments primarily include non-exchange traded derivatives such as over-the-counter commodity price swaps, basis swaps, collars and floors, investments and interest rate swaps. The Company’s valuation models are primarily industry-standard models that consider various inputs including: (i) quoted forward prices for commodities, (ii) time value, (iii) current market and contractual prices for the underlying instruments and (iv) volatility factors, as well as other relevant economic measures.

Level 3:Prices or valuation models that require inputs that are both significant to the fair value measurement and less observable from objective sources (i.e., supported by little or no market activity). The Company’s valuation models are primarily industry-standard models that consider various inputs including: (i) quoted forward prices for commodities, (ii) time value, (iii) volatility factors and (iv) current market and contractual prices for the underlying instruments, as well as other relevant economic measures.

Financial Assets and Liabilities Measured at Fair Value

The following table presents the carrying amounts and fair values of the Company’s financial instruments at June 30,2017 and December 31, 2016:

			June 30, 2017				December 31, 2016
			Carrying		Fair		Carrying		Fair
(in millions)			Value		Value		Value		Value
	Assets:
		Derivative instruments	$	225	$	225	$	4	$	4
	Liabilities:
		Derivative instruments	$	-	$	-	$	178	$	178
		$600 million 5.5% senior notes due 2022 (a)	$	594	$	619	$	594	$	620
		$1,550 million 5.5% senior notes due 2023 (a)	$	1,554	$	1,597	$	1,555	$	1,621
		$600 million 4.375% senior notes due 2025 (a)	$	593	$	614	$	592	$	599
(a)	The carrying value includes associated deferred loan costs and any premium.

Cash and cash equivalents, accounts receivable, other current assets, accountspayable, interest payable and other current liabilities. The carrying amounts approximate fair value due to the short maturity of these instruments.

Senior notes. The fair values of the Company’s senior notes are based on quoted market prices.The debt securities are not actively traded and, therefore, are classified as Level 2 in the fair value hierarchy.

Derivative instruments. The fair value of the Company’s derivative instruments is estimated by management considering various factors, including closing exchange and over-the-counter quotations and the time value of the underlying commitments. Financial assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of the fair value of assets and liabilities and their placement within the fair value hierarchy levels. The following tables summarize (i) the valuation of each of the Company’s financial instruments by required fair value hierarchy levels and (ii) the gross fair value by the appropriate balance sheet classification,even when the derivative instruments are subject to netting arrangements and qualify for net presentation in the Company’s consolidated balance sheets at June 30,2017 and December 31, 2016. The Company nets the fair value of derivative instruments by counterparty in the Company’s consolidated balance sheets.

June 30, 2017
				Fair Value Measurements Using												Net
				Quoted Prices										Gross		Fair Value
				in Active				Significant						Amounts		Presented
				Markets for				Other		Significant				Offset in the		in the
				Identical				Observable		Unobservable				Consolidated		Consolidated
				Assets				Inputs		Inputs		Total		Balance		Balance
(in millions)				(Level 1)				(Level 2)		(Level 3)		Fair Value		Sheet		Sheet
	Assets:
		Current:
			Commodity derivatives		$	-	$	145	$	-	$	145	$	(10)	$	135
		Noncurrent:
			Commodity derivatives			-		94		-		94		(4)		90
	Liabilities:
		Current:
			Commodity derivatives			-		(10)		-		(10)		10		-
		Noncurrent:
			Commodity derivatives			-		(4)		-		(4)		4		-
	Net derivative instruments				$	-	$	225	$	-	$	225	$	-	$	225

December 31, 2016
				Fair Value Measurements Using												Net
				Quoted Prices										Gross		Fair Value
				in Active				Significant						Amounts		Presented
				Markets for				Other		Significant				Offset in the		in the
				Identical				Observable		Unobservable				Consolidated		Consolidated
				Assets				Inputs		Inputs		Total		Balance		Balance
(in millions)				(Level 1)				(Level 2)		(Level 3)		Fair Value		Sheet		Sheet
	Assets:
		Current:
			Commodity derivatives		$	-	$	59	$	-	$	59	$	(55)	$	4
		Noncurrent:
			Commodity derivatives			-		-		-		-		-		-
	Liabilities:
		Current:
			Commodity derivatives			-		(137)		-		(137)		55		(82)
		Noncurrent:
			Commodity derivatives			-		(96)		-		(96)		-		(96)
	Net derivative instruments				$	-	$	(174)	$	-	$	(174)	$	-	$	(174)

Concentrations of credit risk.At June 30,2017, the Company’s primary concentrations of credit risk are the risk of collecting accounts receivable and the risk of counterparties’ failure to perform under derivative obligations.

The Company has entered into International Swap Dealers Association Master Agreements (“ISDA Agreements”) with each of its derivative counterparties. The terms of the ISDA Agreements provide the Company and the counterparties with rights of set-off upon the occurrence of defined acts of default by either the Company or a counterparty to a derivative, whereby the party not in default may set off all derivative liabilities owed to the defaulting party against all derivative asset receivables from the defaulting party. See Note 7 for additional information regarding the Company’s derivative activities and counterparties.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Certain assets and liabilities are reported at fair value on a nonrecurring basis in the Company’s consolidated balance sheets. The following methods and assumptions were used to estimate the fair values:

Impairments of long-lived assets – The Company periodically reviews its long-lived assets to be held and used, including proved oil and natural gas properties and their integrated assets, whenever events or circumstances indicate that the carrying value of those assets may not be recoverable, for instance when there are declines in commodity prices or well performance. The Company reviews its oil and natural gas properties by depletion base. An impairment loss is indicated if the sum of the expected undiscounted future net cash flows is less than the carrying amount of the assets. If the estimated undiscounted future net cash flows are less than the carrying amount of the Company’s assets, it recognizes an impairment loss for the amount by which the carrying amount of the asset exceeds the estimated fair value of the asset.

The Company calculates the expected undiscounted future net cash flows of its long-lived assets and their integrated assets using management’s assumptions and expectations of (i) commodity prices, which are based on the New York Mercantile Exchange (“NYMEX”) strip, (ii) pricing adjustments for differentials, (iii) production costs, (iv) capital expenditures, (v) production volumes, (vi) estimated proved reserves and risk-adjusted probable and possible reserves, and (vii) prevailing market rates of income and expenses from integrated assets. At June 30,2017, the Company’s estimates of commodity prices for purposes of determining undiscounted future cash flows, which are based on the NYMEX strip, ranged from a 2017 price of $45.26 per barrel of oil to a 2024 price of $53.68 per barrel of oil. Similarly, natural gas prices ranged from a 2017 price of $3.16 per Mcf of natural gas decreasing to a 2020 price of $2.83 per Mcf partially recovering to a 2024 price of $3.03 per Mcf of natural gas. Commodity prices for this purpose were held flat after 2024.

The Company calculates the estimated fair values of its long-lived assets and their integrated assets using a discounted future cash flow model. Fair value assumptions associated with the calculation of discounted future net cash flows include (i) market estimates of commodity prices, (ii) pricing adjustments for differentials, (iii) production costs, (iv) capital expenditures, (v) production volumes, (vi) estimated proved reserves and risk-adjusted probable and possible reserves, (vii) prevailing market rates of income and expenses from integrated assets and (viii) a discount rate. The expected future net cash flows were discounted using an annual rate of 10 percent to determine fair value. These are classified as Level 3 fair value assumptions.

During the three months ended March 31, 2016, NYMEX strip prices declined as compared to December 31, 2015, and as a result the carrying amount of the Company’s Yeso field of approximately $3.4 billion exceeded the expected undiscounted future net cash flows resulting in a non-cash charge against earnings of approximately $1.5 billion. The non-cash charge represented the amount by which the carrying amount exceeded the estimated fair value of the assets.

The following table reports the carrying amount, estimated fair value and impairment expense of long-lived assets for the indicated period:

				Estimated
		Carrying		Fair Value		Impairment
(in millions)		Amount		(Level 3)		Expense
March 2016	$	3,438	$	1,913	$	1,525

It is reasonably possible that the estimate of undiscounted future net cash flows of the Company’s long-lived assets may change in the future resulting in the need to impair carrying values. The primary factors that may affect estimates of future cash flows are (i) commodity prices including differentials, (ii) increases or decreases in production and capital costs, (iii) future reserve volume adjustments, both positive and negative, to proved reserves and appropriate risk-adjusted probable and possible reserves,(iv) results of future drilling activities and (v) changes in income and expenses from integrated assets.

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Derivative financial instruments

6 Months Ended

Jun. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative financial instruments

Note 7. Derivative financial instruments

The Company uses derivative financial instruments to manage its exposure to commodity price fluctuations. Commodity derivative instruments are used to (i) reduce the effect of the volatility of price changes on the oil and natural gas the Company produces and sells, (ii) support the Company’s capital budget and expenditure plans and (iii) support the economics associated with acquisitions. The Company does not enter into derivative financial instruments for speculative or trading purposes. The Company also enters into fixed-price forward physical power purchase contracts to manage the volatility of the price of power needed for ongoing operations. The Company may also enter into physical delivery contracts to effectively provide commodity price hedges. Because these physical contracts are not expected to be net cash settled, the Company has elected normal purchase or normal sale treatment and are thus recorded at cost.

The Company does not designate its derivative instruments to qualify for hedge accounting. Accordingly, the Company reflects changes in the fair value of its derivative instruments in its consolidated statements of operations as they occur.

The following table summarizes the amounts reported in earnings related to the commodity derivative instruments for the three and sixmonths ended June 30,2017 and 2016:

			Three Months Ended				Six Months Ended
			June 30,				June 30,
(in millions)				2017		2016		2017		2016
Gain (loss) on derivatives:
	Oil derivatives		$	199	$	(281)	$	465	$	(209)
	Natural gas derivatives			10		(17)		30		(8)
		Total	$	209	$	(298)	$	495	$	(217)
The following table represents the Company’s net cash receipts from (payments on) derivatives for the three and six months ended June 30, 2017 and 2016:
			Three Months Ended				Six Months Ended
			June 30,				June 30,
(in millions)				2017		2016		2017		2016
Net cash receipts from (payments on) derivatives:
	Oil derivatives		$	70	$	160	$	101	$	412
	Natural gas derivatives			(2)		8		(5)		15
		Total	$	68	$	168	$	96	$	427

Commodity derivative contracts at June 30,2017.The following table sets forth the Company’s outstanding derivative contracts at June 30,2017. When aggregating multiple contracts, the weighted average contract price is disclosed. All of the Company’s derivative contracts at June 30,2017 are expected to settle by December 31, 2019.

				First		Second		Third		Fourth
				Quarter		Quarter		Quarter		Quarter		Total
Oil Price Swaps: (a)
	2017:
		Volume (Bbl)						7,966,370		7,188,080		15,154,450
		Price per Bbl					$	51.69	$	51.87	$	51.77
	2018:
		Volume (Bbl)		6,581,629		6,131,170		5,765,318		5,455,007		23,933,124
		Price per Bbl	$	52.01	$	51.84	$	51.68	$	51.54	$	51.78
	2019:
		Volume (Bbl)		3,772,000		3,604,000		3,460,000		3,324,000		14,160,000
		Price per Bbl	$	53.60	$	53.58	$	53.59	$	53.61	$	53.59
Oil Basis Swaps: (b)
	2017:
		Volume (Bbl)						6,302,000		6,302,000		12,604,000
		Price per Bbl					$	(0.57)	$	(0.57)	$	(0.57)
	2018:
		Volume (Bbl)		6,586,000		6,156,000		5,765,000		5,488,000		23,995,000
		Price per Bbl	$	(1.05)	$	(1.04)	$	(1.04)	$	(1.04)	$	(1.04)
	2019:
		Volume (Bbl)		3,771,000		3,609,000		3,434,000		3,311,000		14,125,000
		Price per Bbl	$	(1.18)	$	(1.18)	$	(1.19)	$	(1.19)	$	(1.19)
Natural Gas Price Swaps: (c)
	2017:
		Volume (MMBtu)						15,895,441		14,673,000		30,568,441
		Price per MMBtu					$	3.12	$	3.10	$	3.11
	2018:
		Volume (MMBtu)		11,156,000		10,641,000		10,219,000		9,904,000		41,920,000
		Price per MMBtu	$	3.06	$	3.05	$	3.05	$	3.04	$	3.05
	2019:
		Volume (MMBtu)		2,791,533		2,681,387		2,578,537		2,489,535		10,540,992
		Price per MMBtu	$	2.86	$	2.85	$	2.85	$	2.85	$	2.85
(a) The index prices for the oil price swaps are based on the NYMEX – West Texas Intermediate (“WTI”) monthly average futures price.
(b) The basis differential price is between Midland – WTI and Cushing – WTI.
(c) The index prices for the natural gas price swaps are based on the NYMEX – Henry Hub last trading day futures price.

Derivative counterparties.  The Company uses credit and other financial criteria to evaluate the creditworthiness ofcounterparties to its derivative instruments. The Company believes that all of its derivative counterparties are currently acceptable credit risks. Other than provided by the Company’s credit facility, the Company is not required to provide credit support or collateral to any counterparties under its derivative contracts, nor are they required to provide credit support to the Company. Under the terms of the Company’s credit facility, certain events could occur that would cause any obligations under the Company’s credit facility to no longer be secured by the Company’s oil and natural gas properties.

At June 30,2017, the Company had a net asset position of $225 million as a result of outstanding derivative contracts which are reflected in the accompanying consolidated balance sheets. The Company assessed this balance for concentration risk and noted balances of approximately $32 million, $32 million, $24 million, $22 million and $20 million with Wells Fargo Bank, N.A., J.P. Morgan Chase Bank, Citibank, N.A., ING Bank and Societe Generale, respectively.

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Debt

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Debt

Note 8. Debt

The Company’s debt consisted of the following at June 30,2017 and December 31, 2016:

				June 30,		December 31,
(in millions)				2017		2016
Credit facility			$	-	$	-
5.5% unsecured senior notes due 2022				600		600
5.5% unsecured senior notes due 2023				1,550		1,550
4.375% unsecured senior notes due 2025				600		600
Unamortized original issue premium				21		22
Senior notes issuance costs, net				(30)		(31)
	Less: current portion			-		-
		Total long-term debt	$	2,741	$	2,741

Credit facility. In April 2017, the Company amended its credit facility to extend the maturity date, decrease unused lender commitments and increase the borrowing base. As a result, the Company recorded a loss on extinguishment of debt of approximately $1 million for the three and six months ended June 30,2017, representing the proportional amount of unamortized deferred loan costs associated with banks that are no longer in the credit facility syndicate.The Company’s credit facility, as amended and restated, has a maturity date of May 9, 2022. At June 30,2017, the Company’s commitments from its bank group were $2.0 billion and its borrowing base was $3.0 billion.

Senior notes. Interest on the Company’s senior notes is paid in arrears semi-annually. The senior notes are fully and unconditionally guaranteed on a senior unsecured basis by all subsidiaries of the Company, subject to customary release provisions as described in Note 13.

At June 30,2017, the Company was in compliance with the covenants under all of its debt instruments.

Principal maturities of long-term debt.Principal maturities of long-term debt outstanding at June 30,2017 were as follows:

(in millions)
Remaining 2017		$	-
2018			-
2019			-
2020			-
2021			-
2022			600
Thereafter			2,150
	Total	$	2,750

Interest expense.The following amounts have been incurred and charged to interest expense for the three and six months ended June 30,2017 and 2016:

		Three Months Ended				Six Months Ended
		June 30,				June 30,
(in millions)			2017		2016		2017		2016
Cash payments for interest		$	4	$	64	$	65	$	106
Non-cash interest			1		1		4		4
Net changes in accruals			34		(10)		10		(1)
	Total interest expense	$	39	$	55	$	79	$	109

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Commitments and contingencies

6 Months Ended

Jun. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and contingencies

Note 9. Commitments and contingencies

Legal actions. The Company is a party to proceedings and claims incidental to its business. While many of these matters involve inherent uncertainty, the Company believes that the amount of the liability, if any, ultimately incurred with respect to any such proceedings or claims will not have a material adverse effect on the Company’s consolidated financial position as a whole or on its liquidity, capital resources or future results of operations. The Company will continue to evaluate proceedings and claims involving the Company on a regular basis and will establish and adjust any reserves as appropriate to reflect its assessment of the then current status of the matters.

Severance tax, royalty and joint interest audits. The Company is subject to routine severance, royalty and joint interest audits from regulatory bodies and non-operators and makes accruals as necessary for estimated exposure when deemed probable and estimable.Additionally, the Company is subject to various possible contingencies that arise primarily from interpretations affecting the oil and natural gas industry. Such contingencies include differing interpretations as to the prices at which oil and natural gas sales may be made, the prices at which royalty owners may be paid for production from their leases, allowable costs under joint interest arrangements and other matters. At December 31, 2016, the Company had $7millionaccrued for estimated exposure that has since been satisfied.Although the Company believesthat it has estimated its exposure with respect to the various laws and regulations, administrative rulings and interpretations thereof, adjustments could be required as new interpretations and regulations are issued. 

Commitments.The Company periodically enters into contractual arrangements under which the Company is committed to expend funds. These contractual arrangements relate to purchase agreements the Company has entered into including drilling commitments, water commitment agreements, throughput volume delivery commitments, power commitments, fixed asset commitments and maintenance commitments.The following table summarizes the Company’s commitments at June 30,2017:

(in millions)
Remaining 2017		$	24
2018			51
2019			53
2020			26
2021			22
2022			23
Thereafter			84
	Total	$	283

Operating leases. The Company leases vehicles, equipment and office facilities under non-cancellable operating leases. Lease payments associated with these operating leases for the three months endedJune 30,2017 and 2016 were approximately $3 million and $2 million, respectively, and approximately $5 million and $4 millionfor the six months endedJune 30,2017 and 2016, respectively.

Future minimum lease commitments under non-cancellable operating leases at June 30,2017 were as follows:

(in millions)
Remaining 2017		$	5
2018			9
2019			7
2020			6
2021			4
2022			-
Thereafter			1
	Total	$	32

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Income taxes

6 Months Ended

Jun. 30, 2017

Income Tax Disclosure [Abstract]

Income taxes

Note 10. Income taxes

The effective income tax rates were 37.8percent and 37.3 percentfor the three months ended June 30,2017 and 2016, respectively, and 36.6percent and 36.9 percentfor the six months ended June 30,2017 and 2016, respectively. Total income tax expense for the three and sixmonths ended June 30,2017differed from amounts computed by applying the United States federal statutory tax rates to pre-tax income primarily due to state income taxes and the impact of permanent differences between book and taxable income. The Company recorded discrete income tax expense of approximately $2 million and a discrete income tax benefit of approximately $6 million for the three and sixmonths ended June 30,2017, respectively, related to excess tax deficiencies (benefits) on stock-based awards, which are recorded in the income tax provision pursuant to ASU No. 2016-09, which was adopted on January 1, 2017. Total income tax benefit for the three and sixmonths ended June 30,2016differed from amounts computed by applying the United States federal statutory tax rates to pre-tax loss primarily due to state income taxes, partially offset by the impact of permanent differences between book and taxable loss.

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Related party transactions

6 Months Ended

Jun. 30, 2017

Related Party Transactions [Abstract]

Related party transactions

Note 11.Related party transactions

The Company paid royalties on certain properties to a partnership in which a director of the Company is the general partner and owns a 3.5 percent partnership interest. These payments were reported in the Company’s consolidated statements of operations and totaled approximately $2 million and $1 million for the three months ended June 30,2017 and 2016, respectively, and approximately $4 million and $2 million for the six months ended June 30,2017 and 2016, respectively.

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Net income per share

6 Months Ended

Jun. 30, 2017

Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]

Net income per share

Note 12. Earnings per share

The Company uses the two-class method of calculating earnings per share because certain of the Company’s unvested share-based awards qualify as participating securities.

The Company’s basic earnings per share attributable to common stockholders is computed as (i) net income (loss) as reported, (ii) less participating basic earnings (iii) divided by weighted average basic common shares outstanding. The Company’s diluted earnings per share attributable to common stockholders is computed as (i) basic earnings attributable to common stockholders, (ii) plus reallocation of participating earnings (iii) divided by weighted average diluted common shares outstanding.

The following table reconciles the Company’s earnings from operations and earnings attributable to common stockholders to the basic and diluted earnings used to determine the Company’s earnings per share amounts for the three and six months ended June 30,2017 and 2016, respectively, under the two-class method:

				Three Months Ended				Six Months Ended
			June 30,				June 30,
(in millions)			2017		2016		2017		2016
Net income (loss) as reported			$	152	$	(266)	$	802	$	(1,286)
Participating basic earnings (a)				(1)		-		(6)		-
	Basic earnings attributable to common stockholders			151		(266)		796		(1,286)
Reallocation of participating earnings				-		-		-		-
	Diluted earnings attributable to common stockholders		$	151	$	(266)	$	796	$	(1,286)
(a)		Unvested restricted stock awards represent participating securities because they participate in nonforfeitable dividends or distributions with the common equity holders of the Company. Participating earnings represent the distributed earnings of the Company attributable to the participating securities. Unvested restricted stock awards do not participate in undistributed net losses as they are not contractually obligated to do so.

The following table is a reconciliation of the basic weighted average common shares outstanding to diluted weighted average common shares outstanding for the three and sixmonths ended June 30,2017 and 2016:

			Three Months Ended		Six Months Ended
			June 30,		June 30,
(in thousands)			2017	2016	2017	2016
Weighted average common shares outstanding:
	Basic		147,304	130,400	147,071	129,398
		Dilutive common stock options	-	-	6	-
		Dilutive performance units	462	-	581	-
	Diluted		147,766	130,400	147,658	129,398

The following table is a summary of the performance units that were not included in the computation of diluted earnings per share, as inclusion of these items would be antidilutive:

		Three Months Ended		Six Months Ended
		June 30,		June 30,
(in thousands)		2017	2016	2017	2016
Number of antidilutive units:
	Antidilutive performance units	107	-	108	-

Performance unit awards. The number of shares of common stock that will ultimately be issued for performance units will be determined by a combination of (i) comparing the Company’s total shareholder return relative to the total shareholder return of a predetermined group of peer companies at the end of the performance period and (ii) the Company’s absolute total shareholder return at the end of the performance period. The performance period is 36 months. The actual payout of shares will be between zero and 300 percent.

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Subsidiary guarantors

6 Months Ended

Jun. 30, 2017

Guarantees [Abstract]

Subsidiary guarantors

Note 13.Subsidiary guarantors

All of the Company’s 100 percent owned subsidiaries have fully and unconditionally guaranteed the Company’s senior notes. The indentures governing the Company’s senior notes provide that the guarantees of its subsidiary guarantors will be released in certain customary circumstances including (i) in connection with any sale, exchange or other disposition, whether by merger, consolidation or otherwise, of the capital stock of that guarantor to a person that is not the Company or a restricted subsidiary of the Company, such that, after giving effect to such transaction, such guarantor would no longer constitute a subsidiary of the Company, (ii) in connection with any sale, exchange or other disposition (other than a lease) of all or substantially all of the assets of that guarantor to a person that is not the Company or a restricted subsidiary of the Company, (iii) upon the merger of a guarantor into the Company or any other guarantor or the liquidation or dissolution of a guarantor, (iv) if the Company designates any restricted subsidiary that is a guarantor to be an unrestricted subsidiary in accordance with the indenture, (v) upon legal defeasance or satisfaction and discharge of the indenture and (vi) upon written notice of such release or discharge by the Company to the trustee following the release or discharge of all guarantees by such guarantor of any indebtedness that resulted in the creation of such guarantee, except a discharge or release by or as a result of payment under such guarantee.

See Note 8for a summary of the Company’s senior notes. In accordance with practices accepted by the United States Securities and Exchange Commission, the Company has prepared condensed consolidating financial statements in order to quantify the assets, results of operations and cash flows of such subsidiaries as subsidiary guarantors.

The following condensed consolidating balance sheets at June 30,2017 and December 31, 2016, condensed consolidating statements of operations for the three and six months ended June 30,2017 and 2016and condensed consolidating statements of cash flows for thesix months ended June 30,2017 and 2016, present financial information for Concho Resources Inc. as the parent on a stand-alone basis (carrying any investments in subsidiaries under the equity method), financial information for the subsidiary guarantors on a stand-alone basis and the consolidation and elimination entries necessary to arrive at the information for the Company on a consolidated basis. All current and deferred income taxes are recorded on Concho Resources Inc., as the subsidiaries are flow-through entities for income tax purposes. The subsidiary guarantors are not restricted from making distributions to the Company.

Condensed Consolidating Balance Sheet
June 30, 2017
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
ASSETS
Accounts receivable - related parties		$	8,986	$	(639)	$	(8,347)	$	-
Other current assets			167		1,137		-		1,304
Oil and natural gas properties, net			-		11,806		-		11,806
Property and equipment, net			-		234		-		234
Investment in subsidiaries			2,831		-		(2,831)		-
Other long-term assets			105		142		-		247
	Total assets	$	12,089	$	12,680	$	(11,178)	$	13,591
LIABILITIES AND EQUITY
Accounts payable - related parties		$	(639)	$	8,986	$	(8,347)	$	-
Other current liabilities			46		720		-		766
Long-term debt			2,741		-		-		2,741
Other long-term liabilities			1,212		143		-		1,355
Equity			8,729		2,831		(2,831)		8,729
	Total liabilities and equity	$	12,089	$	12,680	$	(11,178)	$	13,591

Condensed Consolidating Balance Sheet
December 31, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
ASSETS
Accounts receivable - related parties		$	8,991	$	(336)	$	(8,655)	$	-
Other current assets			12		534		-		546
Oil and natural gas properties, net			-		11,086		-		11,086
Property and equipment, net			-		216		-		216
Investment in subsidiaries			1,989		-		(1,989)		-
Other long-term assets			11		260		-		271
	Total assets	$	11,003	$	11,760	$	(10,644)	$	12,119
LIABILITIES AND EQUITY
Accounts payable - related parties		$	(336)	$	8,991	$	(8,655)	$	-
Other current liabilities			114		639		-		753
Long-term debt			2,741		-		-		2,741
Other long-term liabilities			861		141		-		1,002
Equity			7,623		1,989		(1,989)		7,623
	Total liabilities and equity	$	11,003	$	11,760	$	(10,644)	$	12,119

Condensed Consolidating Statement of Operations
Three Months Ended June 30, 2017
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	567	$	-	$	567
Total operating costs and expenses			210		(508)		-		(298)
	Income from operations		210		59		-		269
Interest expense			(38)		(1)		-		(39)
Loss on extinguishment of debt			(1)		-		-		(1)
Other, net			74		16		(74)		16
	Income before income taxes		245		74		(74)		245
Income tax expense			(93)		-		-		(93)
	Net income	$	152	$	74	$	(74)	$	152

Condensed Consolidating Statement of Operations
Three Months Ended June 30, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	396	$	-	$	396
Total operating costs and expenses			(297)		(468)		-		(765)
	Loss from operations		(297)		(72)		-		(369)
Interest expense			(54)		(1)		-		(55)
Other, net			(73)		-		73		-
	Loss before income taxes		(424)		(73)		73		(424)
Income tax benefit			158		-		-		158
	Net loss	$	(266)	$	(73)	$	73	$	(266)

Condensed Consolidating Statement of Operations
Six Months Ended June 30, 2017
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	1,179	$	-	$	1,179
Total operating costs and expenses			495		(344)		-		151
	Income from operations		495		835		-		1,330
Interest expense			(78)		(1)		-		(79)
Loss on extinguishment of debt			(1)		-		-		(1)
Other, net			850		16		(850)		16
	Income before income taxes		1,266		850		(850)		1,266
Income tax expense			(464)		-		-		(464)
	Net income	$	802	$	850	$	(850)	$	802

Condensed Consolidating Statement of Operations
Six Months Ended June 30, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	680	$	-	$	680
Total operating costs and expenses			(218)		(2,384)		-		(2,602)
	Loss from operations		(218)		(1,704)		-		(1,922)
Interest expense			(107)		(2)		-		(109)
Other, net			(1,713)		(7)		1,713		(7)
	Loss before income taxes		(2,038)		(1,713)		1,713		(2,038)
Income tax benefit			752		-		-		752
	Net loss	$	(1,286)	$	(1,713)	$	1,713	$	(1,286)

Condensed Consolidating Statement of Cash Flows
Six Months Ended June 30, 2017
			Parent		Subsidiary	Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Net cash flows provided by operating activities		$	28	$	777	$	-	$	805
Net cash flows used in investing activities			-		(168)		-		(168)
Net cash flows used in financing activities			(28)		-		-		(28)
	Net increase in cash and cash equivalents		-		609		-		609
	Cash and cash equivalents at beginning of period		-		53		-		53
	Cash and cash equivalents at end of period	$	-	$	662	$	-	$	662

Condensed Consolidating Statement of Cash Flows
Six Months Ended June 30, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Net cash flows provided by operating activities		$	12	$	664	$	-	$	676
Net cash flows used in investing activities			-		(412)		-		(412)
Net cash flows used in financing activities			(12)		-		-		(12)
	Net increase in cash and cash equivalents		-		252		-		252
	Cash and cash equivalents at beginning of period		-		229		-		229
	Cash and cash equivalents at end of period	$	-	$	481	$	-	$	481

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Subsequent events

6 Months Ended

Jun. 30, 2017

Subsequent Events [Abstract]

Subsequent events

Note 14. Subsequent events

Midland Basin acquisition. In July 2017, the Company completed an acquisition in the Midland Basin. As consideration for the acquisition, the Company paid approximately $600 million in cash, of which $60 million was held in escrow at June 30,2017 with the remaining $540 million paid in July 2017. The acquisition is subject to customary post-closing adjustments.

New commodity derivative contracts.After June 30,2017, the Company entered into the following oil price swaps and oil basis swaps to hedge additional amounts of the Company’s estimated future production:

				First		Second		Third		Fourth
				Quarter		Quarter		Quarter		Quarter		Total
Oil Price Swaps: (a)
	2017:
		Volume (Bbl)						1,253,000		1,354,000		2,607,000
		Price per Bbl					$	47.76	$	47.73	$	47.74
	2018:
		Volume (Bbl)		1,059,000		869,000		747,000		669,000		3,344,000
		Price per Bbl	$	48.33	$	48.26	$	48.20	$	48.15	$	48.25
	2019:
		Volume (Bbl)		1,002,000		940,000		885,000		845,000		3,672,000
		Price per Bbl	$	49.26	$	49.24	$	49.27	$	49.26	$	49.26
Oil Basis Swaps: (b)
	2017:
		Volume (Bbl)						915,000		1,380,000		2,295,000
		Price per Bbl					$	(1.28)	$	(1.28)	$	(1.28)
	2018:
		Volume (Bbl)		630,000		637,000		644,000		644,000		2,555,000
		Price per Bbl	$	(1.11)	$	(1.11)	$	(1.11)	$	(1.11)	$	(1.11)
	2019:
		Volume (Bbl)		810,000		819,000		828,000		828,000		3,285,000
		Price per Bbl	$	(1.12)	$	(1.12)	$	(1.12)	$	(1.12)	$	(1.12)
(a)	The index prices for the oil price swaps are based on the NYMEX – WTI monthly average futures price.
(b)	The basis differential price is between Midland – WTI and Cushing – WTI.

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Supplementary information

6 Months Ended

Jun. 30, 2017

Oil and Gas Exploration and Production Industries Disclosures [Abstract]

Supplementary information

Note 15.Supplementary information

Capitalized costs

			June 30,		December 31,
(in millions)			2017		2016
Oil and natural gas properties:
	Proved		$	17,364	$	16,620
	Unproved			2,346		1,856
	Less: accumulated depletion			(7,904)		(7,390)
		Net capitalized costs for oil and natural gas properties	$	11,806	$	11,086

Costs incurred for oil and natural gas producing activities

		Three Months Ended				Six Months Ended
		June 30,				June 30,
(in millions)		2017		2016		2017		2016
Property acquisition costs:
	Proved	$	12	$	4	$	139	$	256
	Unproved		87		19		393		158
Exploration			238		165		473		336
Development			145		107		303		190
	Total costs incurred for oil and natural gas properties	$	482	$	295	$	1,308	$	940

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Summary of significant accounting policies (Policies)

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Principles of consolidation

Principles of consolidation. The consolidated financial statements of the Company include the accounts of the Company and its 100 percent owned subsidiaries.The Company consolidates the financial statements of these entities. All material intercompany balances and transactions have been eliminated.

Reclassifications

Reclassifications. Certain prior period amounts have been reclassified to conform to the 2017 presentation. These reclassifications had no impact on net income (loss), total stockholders’ equity or total cash flows.

Use of estimates in the preparation of financial statements

Use of estimates in the preparation of financial statements. Preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure 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 could differ from these estimates. Depletion of oil and natural gas properties is determined using estimates of proved oil and natural gas reserves. There are numerous uncertainties inherent in the estimation of quantities of proved reserves and in the projection of future rates of production and the timing of development expenditures. Similarly, evaluations for impairment of proved and unproved oil and natural gas properties are subject to numerous uncertainties including, among others, estimates of future recoverable reserves, commodity price outlooks and prevailing market rates of other sources of income and costs. Other significant estimates include, but are not limited to, asset retirement obligations, fair value of stock-based compensation, fair value of business combinations, fair value of nonmonetary exchanges, fair value of derivative financial instrumentsand income taxes.

Interim financial statements

Interim financial statements. The accompanying consolidated financial statements of the Company have not been audited by the Company’s independent registered public accounting firm, except that the consolidated balance sheet at December 31, 2016 is derived from audited consolidated financial statements. In the opinion of management, the accompanying consolidated financial statements reflect all adjustments necessary to present fairly the Company’s consolidated financial statements. All such adjustments are of a normal, recurring nature. In preparing the accompanying consolidated financial statements, management has made certain estimates and assumptions that affect reported amounts in the consolidated financial statements and disclosures of contingencies. Actual results may differ from those estimates. The results for interim periods are not necessarily indicative of annual results.

Certain disclosures have been condensed in or omitted from these consolidated financial statements. Accordingly, these condensed notes to the consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

Cash equivalents

Cash equivalents. The Company considers all cash on hand, depository accounts held by banks, money market accounts and investments with an original maturity of three months or less to be cash equivalents. The Company’s cash and cash equivalents are held in financial institutions in amounts that exceed the insurance limits of the Federal Deposit Insurance Corporation. However, management believes that the Company’s counterparty risks are minimal based on the reputation and history of the institutions selected. The majority of the Company’s cash is invested in stable value government money market funds.

Equity method investments

Equity method investments. At December 31, 2016, the Company owned a 50 percent membership interest in a midstream joint venture, Alpha Crude Connector, LLC (“ACC”), thatoperated a crude oil gathering and transportation system in the northern Delaware Basin. InFebruary 2017, the Company closed on the divestiture of its ownership interest in ACC. See Note 4 for additional information regarding the disposition of ACC.

The Company accounted for its investment in ACC under the equity method of accounting for investments in unconsolidated affiliates. The Company’s net investment in ACC was approximately $129 million at December 31, 2016, and was included in other assets in the Company’s consolidated balance sheet. Gains and losses incurred from the Company’s equity investment in ACC were recorded in other income (expense) in its consolidated statements of operations.

The Company owns a 23.75 percent membership interest in an entity that operates a crude oil gathering and transportation system in the southern Delaware Basin. The Company accounts for its investment under the equity method of accounting for investments in unconsolidated affiliates. The Company’s net investment was approximately $45 million and $42 million at June 30,2017 and December 31, 2016, respectively, and is included in other assets in the Company’s consolidated balance sheets. Gains and losses incurred from the Company’s equity investment are recorded in other income (expense) in its consolidated statements of operations.

Revenue recognition

Revenue recognition.Oil and natural gas revenues are recorded at the time of physical transfer of such products to the purchaser, which for the Company is primarily at the wellhead. The Company follows the sales method of accounting for oil and natural gas sales, recognizing revenues based on the Company’s actual proceeds from the oil and natural gas sold to purchasers.

General and administrative expense

General and administrative expense. The Company receives fees for the operation of jointly-owned oil and natural gas properties during the drilling and production phases and records such reimbursements as reductions of general and administrative expense. The Company earned reimbursements of approximately $4 million for each of the three months ended June 30,2017 and 2016 and $8 million for each of the six months ended June 30,2017 and 2016.

Recent accounting pronouncements

Recently adopted accounting pronouncements. The Company adopted Accounting Standards Update (“ASU”) No. 2016-09, “Compensation–Stock Compensations (Topic 718): Improvements to Employee Share-based Payment Accounting,”on January 1, 2017. The adoption did not have an impact on prior period consolidated financial statements. The Company elected to account for forfeitures of share-based payments as they occur. At December 31, 2016, the Company had not recorded compensation expense of approximately $8 million based on forecasted forfeitures nor the associated deferred tax benefit of approximately $3 million. The Company recognized all excess tax benefits not previously recorded, which totaled approximately $5 million at December 31, 2016. Upon adoption, the Company recorded a cumulative-effect adjustment, which decreased retained earnings by less than $1 million, increased additional paid-in capital by approximately $8 million, and decreased net deferred income taxes by approximately $8 million.The Company elected to prospectively classify excess tax benefits and deficiencies as operating activities on the consolidated statements of cash flows and will prospectively record those excess tax benefits and deficiencies as discrete items in the income tax provision in the consolidated statements of operations. Under the new standard, for the three and six months ended June 30,2017, the Company recorded excess tax deficiencies of approximately $2 million and excess tax benefits of approximately $6 million, respectively, as offsets to the Company’s income tax provision. Also under the new standard, for the three and six months ended June 30,2017, the Company recorded forfeitures of share-based payments of approximately $1 million and $6 million, respectively.

New accounting pronouncements issued but not yet adopted. In May 2014, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. This new revenue recognition model provides a five-step analysis in determining when and how revenue is recognized. The new model will require revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration a company expects to receive in exchange for those goods or services.

In August 2015, the FASB issued ASU No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” which deferred the effective date of ASU No. 2014-09 by one year. That new standard is now effective for annual reporting periods beginning after December 15, 2017. The Company expects to use the modified retrospective method to adopt the standard, meaning the cumulative effect of initially applying the standard will be recognized in the most current period presented in the financial statements. The Company has substantially completed its internal evaluation of the adoption of this standard and does not expect this new guidance will have a material impact on its consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842),” which supersedes current lease guidance. The new lease standard requires all leases with a term greater than one year to be recognized on the balance sheet while maintaining substantially similar classifications for financing and operating leases. Lease expense recognition on the consolidated statements of operations will be effectively unchanged. This guidance is effective for reporting periods beginning after December 15, 2018, and early adoption is permitted. The Company does not plan to early adopt the standard. The Company enters into lease agreements to support its operations. These agreements are for leases on assets such as office space, vehicles, field services, well equipment and drilling rigs. The Company is currently in the process of reviewing all contracts that could be applicable to this new guidance. The Company believes this new guidance will have a moderate impact to its consolidated balance sheets due to the recognition of right-of-use assets and lease liabilities that are not currently recognized under currently applicable guidance.

In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments–Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” which replaces the current “incurred loss” methodology for recognizing credit losses with an “expected loss” methodology. This new methodology requires that a financial asset measured at amortized cost be presented at the net amount expected to be collected. This standard is intended to provide more timely decision-useful information about the expected credit losses on financial instruments. This guidance is effective for fiscal years beginning after December 15, 2019, and early adoption is allowed as early as fiscal years beginning after December 15, 2018. The Company does not believe this new guidance will have a material impact on its consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” with the objective of adding guidance to assist in evaluating whether transactions should be accounted for as asset acquisitions or as business combinations. The guidance provides a screen to determine when an integrated set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the acquired assets is concentrated in a single asset or a group of similar assets, the set is not a business. If the screen is not met, to be considered a business, the set must include an input and a substantive process that together significantly contribute to the ability to create output. This new guidance is effective for annual periods beginning after December 15, 2017, and early adoption is allowed. The Company is evaluating the impact this new guidance will have on its consolidated financial statements. The new guidance could result in more acquisitions of oil and natural gas properties being accounted for as asset acquisitions instead of business combinations.

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Exploratory well costs (Tables)

6 Months Ended

Jun. 30, 2017

Disclosure Exploratory Well Costs Capitalized Exploratory Well Activity [Abstract]

Company's capitalized exploratory well activity

The following table reflects the Company’s net capitalized exploratory well activity during the six months ended June 30,2017:

		Six Months Ended
(in millions)		June 30, 2017
Beginning capitalized exploratory well costs		$	151
	Additions to exploratory well costs pending the determination of proved reserves		268
	Reclassifications due to determination of proved reserves		(126)
Ending capitalized exploratory well costs		$	293

Aging of capitalized exploratory well costs based on the date drilling was completed

The following table provides an aging at June 30,2017 and December 31, 2016 of capitalized exploratory well costs based on the date drilling was completed:

			June 30,		December 31,
(dollars in millions)			2017		2016
Capitalized exploratory well costs that have been capitalized for a period of one year or less		$	288	$	141
Capitalized exploratory well costs that have been capitalized for a period greater than one year			5		10
	Total capitalized exploratory well costs	$	293	$	151
Number of projects with exploratory well costs that have been capitalized for a period greater
	than one year		6		8

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Incentive plans (Tables)

6 Months Ended

Jun. 30, 2017

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

Summary of the Company's stock-based compensation awards activity

A summary of the Company’s Stock Incentive Plan activity for the six months ended June 30,2017 is presented below:

		Restricted		Stock		Performance
		Stock Shares		Options		Units
Outstanding at December 31, 2016			1,157,270		20,000		331,526
	Awards granted (a)		439,484		-		108,398
	Options exercised		-		(20,000)		-
	Awards cancelled / forfeited		(59,614)		-		(43,333)
	Lapse of restrictions		(354,909)		-		-
Outstanding at June 30, 2017		1,182,231		-		396,591
(a) Weighted average grant date fair value per share/unit		$	121.81	$	-	$	183.48

Future stock-based compensation expense to be recorded for all the stock-based compensation awards that were outstanding

The following table reflects the future stock-based compensation expense to be recorded for all the stock-based compensation awards that were outstanding at June 30,2017:

(in millions)
Remaining 2017		$	35
2018			48
2019			25
Thereafter			8
	Total	$	116

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Disclosures about fair value measurements (Tables)

6 Months Ended

Jun. 30, 2017

Disclosure Fair Value Narrative [Abstract]

Carrying amounts and fair values of the Company's financial instruments

The following table presents the carrying amounts and fair values of the Company’s financial instruments at June 30,2017 and December 31, 2016:

			June 30, 2017				December 31, 2016
			Carrying		Fair		Carrying		Fair
(in millions)			Value		Value		Value		Value
	Assets:
		Derivative instruments	$	225	$	225	$	4	$	4
	Liabilities:
		Derivative instruments	$	-	$	-	$	178	$	178
		$600 million 5.5% senior notes due 2022 (a)	$	594	$	619	$	594	$	620
		$1,550 million 5.5% senior notes due 2023 (a)	$	1,554	$	1,597	$	1,555	$	1,621
		$600 million 4.375% senior notes due 2025 (a)	$	593	$	614	$	592	$	599
(a)	The carrying value includes associated deferred loan costs and any premium.

Net basis derivative fair values as reported in the consolidated balance sheets

The following tables summarize (i) the valuation of each of the Company’s financial instruments by required fair value hierarchy levels and (ii) the gross fair value by the appropriate balance sheet classification,even when the derivative instruments are subject to netting arrangements and qualify for net presentation in the Company’s consolidated balance sheets at June 30,2017 and December 31, 2016. The Company nets the fair value of derivative instruments by counterparty in the Company’s consolidated balance sheets.

June 30, 2017
				Fair Value Measurements Using												Net
				Quoted Prices										Gross		Fair Value
				in Active				Significant						Amounts		Presented
				Markets for				Other		Significant				Offset in the		in the
				Identical				Observable		Unobservable				Consolidated		Consolidated
				Assets				Inputs		Inputs		Total		Balance		Balance
(in millions)				(Level 1)				(Level 2)		(Level 3)		Fair Value		Sheet		Sheet
	Assets:
		Current:
			Commodity derivatives		$	-	$	145	$	-	$	145	$	(10)	$	135
		Noncurrent:
			Commodity derivatives			-		94		-		94		(4)		90
	Liabilities:
		Current:
			Commodity derivatives			-		(10)		-		(10)		10		-
		Noncurrent:
			Commodity derivatives			-		(4)		-		(4)		4		-
	Net derivative instruments				$	-	$	225	$	-	$	225	$	-	$	225

December 31, 2016
				Fair Value Measurements Using												Net
				Quoted Prices										Gross		Fair Value
				in Active				Significant						Amounts		Presented
				Markets for				Other		Significant				Offset in the		in the
				Identical				Observable		Unobservable				Consolidated		Consolidated
				Assets				Inputs		Inputs		Total		Balance		Balance
(in millions)				(Level 1)				(Level 2)		(Level 3)		Fair Value		Sheet		Sheet
	Assets:
		Current:
			Commodity derivatives		$	-	$	59	$	-	$	59	$	(55)	$	4
		Noncurrent:
			Commodity derivatives			-		-		-		-		-		-
	Liabilities:
		Current:
			Commodity derivatives			-		(137)		-		(137)		55		(82)
		Noncurrent:
			Commodity derivatives			-		(96)		-		(96)		-		(96)
	Net derivative instruments				$	-	$	(174)	$	-	$	(174)	$	-	$	(174)

Carrying amounts, estimated fair values and impairment expense of long-lived assets

The following table reports the carrying amount, estimated fair value and impairment expense of long-lived assets for the indicated period:

				Estimated
		Carrying		Fair Value		Impairment
(in millions)		Amount		(Level 3)		Expense
March 2016	$	3,438	$	1,913	$	1,525

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Derivative financial instruments (Tables)

6 Months Ended

Jun. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summarizes the gains and losses reported in earnings related to the commodity and interest rate derivative instruments

The following table summarizes the amounts reported in earnings related to the commodity derivative instruments for the three and sixmonths ended June 30,2017 and 2016:

			Three Months Ended				Six Months Ended
			June 30,				June 30,
(in millions)				2017		2016		2017		2016
Gain (loss) on derivatives:
	Oil derivatives		$	199	$	(281)	$	465	$	(209)
	Natural gas derivatives			10		(17)		30		(8)
		Total	$	209	$	(298)	$	495	$	(217)
The following table represents the Company’s net cash receipts from (payments on) derivatives for the three and six months ended June 30, 2017 and 2016:
			Three Months Ended				Six Months Ended
			June 30,				June 30,
(in millions)				2017		2016		2017		2016
Net cash receipts from (payments on) derivatives:
	Oil derivatives		$	70	$	160	$	101	$	412
	Natural gas derivatives			(2)		8		(5)		15
		Total	$	68	$	168	$	96	$	427

Company's outstanding derivative contracts

The following table sets forth the Company’s outstanding derivative contracts at June 30,2017. When aggregating multiple contracts, the weighted average contract price is disclosed. All of the Company’s derivative contracts at June 30,2017 are expected to settle by December 31, 2019.

				First		Second		Third		Fourth
				Quarter		Quarter		Quarter		Quarter		Total
Oil Price Swaps: (a)
	2017:
		Volume (Bbl)						7,966,370		7,188,080		15,154,450
		Price per Bbl					$	51.69	$	51.87	$	51.77
	2018:
		Volume (Bbl)		6,581,629		6,131,170		5,765,318		5,455,007		23,933,124
		Price per Bbl	$	52.01	$	51.84	$	51.68	$	51.54	$	51.78
	2019:
		Volume (Bbl)		3,772,000		3,604,000		3,460,000		3,324,000		14,160,000
		Price per Bbl	$	53.60	$	53.58	$	53.59	$	53.61	$	53.59
Oil Basis Swaps: (b)
	2017:
		Volume (Bbl)						6,302,000		6,302,000		12,604,000
		Price per Bbl					$	(0.57)	$	(0.57)	$	(0.57)
	2018:
		Volume (Bbl)		6,586,000		6,156,000		5,765,000		5,488,000		23,995,000
		Price per Bbl	$	(1.05)	$	(1.04)	$	(1.04)	$	(1.04)	$	(1.04)
	2019:
		Volume (Bbl)		3,771,000		3,609,000		3,434,000		3,311,000		14,125,000
		Price per Bbl	$	(1.18)	$	(1.18)	$	(1.19)	$	(1.19)	$	(1.19)
Natural Gas Price Swaps: (c)
	2017:
		Volume (MMBtu)						15,895,441		14,673,000		30,568,441
		Price per MMBtu					$	3.12	$	3.10	$	3.11
	2018:
		Volume (MMBtu)		11,156,000		10,641,000		10,219,000		9,904,000		41,920,000
		Price per MMBtu	$	3.06	$	3.05	$	3.05	$	3.04	$	3.05
	2019:
		Volume (MMBtu)		2,791,533		2,681,387		2,578,537		2,489,535		10,540,992
		Price per MMBtu	$	2.86	$	2.85	$	2.85	$	2.85	$	2.85
(a) The index prices for the oil price swaps are based on the NYMEX – West Texas Intermediate (“WTI”) monthly average futures price.
(b) The basis differential price is between Midland – WTI and Cushing – WTI.
(c) The index prices for the natural gas price swaps are based on the NYMEX – Henry Hub last trading day futures price.

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Debt (Tables)

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Company's debt

The Company’s debt consisted of the following at June 30,2017 and December 31, 2016:

				June 30,		December 31,
(in millions)				2017		2016
Credit facility			$	-	$	-
5.5% unsecured senior notes due 2022				600		600
5.5% unsecured senior notes due 2023				1,550		1,550
4.375% unsecured senior notes due 2025				600		600
Unamortized original issue premium				21		22
Senior notes issuance costs, net				(30)		(31)
	Less: current portion			-		-
		Total long-term debt	$	2,741	$	2,741

Principal maturities of debt

Principal maturities of long-term debt outstanding at June 30,2017 were as follows:

(in millions)
Remaining 2017		$	-
2018			-
2019			-
2020			-
2021			-
2022			600
Thereafter			2,150
	Total	$	2,750

Interest expense

The following amounts have been incurred and charged to interest expense for the three and six months ended June 30,2017 and 2016:

		Three Months Ended				Six Months Ended
		June 30,				June 30,
(in millions)			2017		2016		2017		2016
Cash payments for interest		$	4	$	64	$	65	$	106
Non-cash interest			1		1		4		4
Net changes in accruals			34		(10)		10		(1)
	Total interest expense	$	39	$	55	$	79	$	109

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Commitments and contingencies (Tables)

6 Months Ended

Jun. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Summary of the Company's future commitments

The following table summarizes the Company’s commitments at June 30,2017:

(in millions)
Remaining 2017		$	24
2018			51
2019			53
2020			26
2021			22
2022			23
Thereafter			84
	Total	$	283

Future minimum lease commitments under non-cancellable operating leases

Future minimum lease commitments under non-cancellable operating leases at June 30,2017 were as follows:

(in millions)
Remaining 2017		$	5
2018			9
2019			7
2020			6
2021			4
2022			-
Thereafter			1
	Total	$	32

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Net income per share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]

Reconciliation of earnings attributable to common shares, basic and diluted

The following table reconciles the Company’s earnings from operations and earnings attributable to common stockholders to the basic and diluted earnings used to determine the Company’s earnings per share amounts for the three and six months ended June 30,2017 and 2016, respectively, under the two-class method:

				Three Months Ended				Six Months Ended
			June 30,				June 30,
(in millions)			2017		2016		2017		2016
Net income (loss) as reported			$	152	$	(266)	$	802	$	(1,286)
Participating basic earnings (a)				(1)		-		(6)		-
	Basic earnings attributable to common stockholders			151		(266)		796		(1,286)
Reallocation of participating earnings				-		-		-		-
	Diluted earnings attributable to common stockholders		$	151	$	(266)	$	796	$	(1,286)
(a)		Unvested restricted stock awards represent participating securities because they participate in nonforfeitable dividends or distributions with the common equity holders of the Company. Participating earnings represent the distributed earnings of the Company attributable to the participating securities. Unvested restricted stock awards do not participate in undistributed net losses as they are not contractually obligated to do so.

Reconciliation of the basic weighted average common shares outstanding to diluted weighted average common shares outstanding

The following table is a reconciliation of the basic weighted average common shares outstanding to diluted weighted average common shares outstanding for the three and sixmonths ended June 30,2017 and 2016:

			Three Months Ended		Six Months Ended
			June 30,		June 30,
(in thousands)			2017	2016	2017	2016
Weighted average common shares outstanding:
	Basic		147,304	130,400	147,071	129,398
		Dilutive common stock options	-	-	6	-
		Dilutive performance units	462	-	581	-
	Diluted		147,766	130,400	147,658	129,398

Summary of performance units which were not included in the computation of diluted net income per share

The following table is a summary of the performance units that were not included in the computation of diluted earnings per share, as inclusion of these items would be antidilutive:

		Three Months Ended		Six Months Ended
		June 30,		June 30,
(in thousands)		2017	2016	2017	2016
Number of antidilutive units:
	Antidilutive performance units	107	-	108	-

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Subsidiary guarantors (Tables)

6 Months Ended

Jun. 30, 2017

Guarantees [Abstract]

Condensed Consolidating Balance Sheet

The following condensed consolidating balance sheets at June 30,2017 and December 31, 2016, condensed consolidating statements of operations for the three and six months ended June 30,2017 and 2016and condensed consolidating statements of cash flows for thesix months ended June 30,2017 and 2016, present financial information for Concho Resources Inc. as the parent on a stand-alone basis (carrying any investments in subsidiaries under the equity method), financial information for the subsidiary guarantors on a stand-alone basis and the consolidation and elimination entries necessary to arrive at the information for the Company on a consolidated basis. All current and deferred income taxes are recorded on Concho Resources Inc., as the subsidiaries are flow-through entities for income tax purposes. The subsidiary guarantors are not restricted from making distributions to the Company.

Condensed Consolidating Balance Sheet
June 30, 2017
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
ASSETS
Accounts receivable - related parties		$	8,986	$	(639)	$	(8,347)	$	-
Other current assets			167		1,137		-		1,304
Oil and natural gas properties, net			-		11,806		-		11,806
Property and equipment, net			-		234		-		234
Investment in subsidiaries			2,831		-		(2,831)		-
Other long-term assets			105		142		-		247
	Total assets	$	12,089	$	12,680	$	(11,178)	$	13,591
LIABILITIES AND EQUITY
Accounts payable - related parties		$	(639)	$	8,986	$	(8,347)	$	-
Other current liabilities			46		720		-		766
Long-term debt			2,741		-		-		2,741
Other long-term liabilities			1,212		143		-		1,355
Equity			8,729		2,831		(2,831)		8,729
	Total liabilities and equity	$	12,089	$	12,680	$	(11,178)	$	13,591

Condensed Consolidating Balance Sheet
December 31, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
ASSETS
Accounts receivable - related parties		$	8,991	$	(336)	$	(8,655)	$	-
Other current assets			12		534		-		546
Oil and natural gas properties, net			-		11,086		-		11,086
Property and equipment, net			-		216		-		216
Investment in subsidiaries			1,989		-		(1,989)		-
Other long-term assets			11		260		-		271
	Total assets	$	11,003	$	11,760	$	(10,644)	$	12,119
LIABILITIES AND EQUITY
Accounts payable - related parties		$	(336)	$	8,991	$	(8,655)	$	-
Other current liabilities			114		639		-		753
Long-term debt			2,741		-		-		2,741
Other long-term liabilities			861		141		-		1,002
Equity			7,623		1,989		(1,989)		7,623
	Total liabilities and equity	$	11,003	$	11,760	$	(10,644)	$	12,119

Condensed Consolidating Statement of Operations

The following condensed consolidating balance sheets at June 30,2017 and December 31, 2016, condensed consolidating statements of operations for the three and six months ended June 30,2017 and 2016and condensed consolidating statements of cash flows for thesix months ended June 30,2017 and 2016, present financial information for Concho Resources Inc. as the parent on a stand-alone basis (carrying any investments in subsidiaries under the equity method), financial information for the subsidiary guarantors on a stand-alone basis and the consolidation and elimination entries necessary to arrive at the information for the Company on a consolidated basis. All current and deferred income taxes are recorded on Concho Resources Inc., as the subsidiaries are flow-through entities for income tax purposes. The subsidiary guarantors are not restricted from making distributions to the Company.

Condensed Consolidating Statement of Operations
Three Months Ended June 30, 2017
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	567	$	-	$	567
Total operating costs and expenses			210		(508)		-		(298)
	Income from operations		210		59		-		269
Interest expense			(38)		(1)		-		(39)
Loss on extinguishment of debt			(1)		-		-		(1)
Other, net			74		16		(74)		16
	Income before income taxes		245		74		(74)		245
Income tax expense			(93)		-		-		(93)
	Net income	$	152	$	74	$	(74)	$	152

Condensed Consolidating Statement of Operations
Three Months Ended June 30, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	396	$	-	$	396
Total operating costs and expenses			(297)		(468)		-		(765)
	Loss from operations		(297)		(72)		-		(369)
Interest expense			(54)		(1)		-		(55)
Other, net			(73)		-		73		-
	Loss before income taxes		(424)		(73)		73		(424)
Income tax benefit			158		-		-		158
	Net loss	$	(266)	$	(73)	$	73	$	(266)

Condensed Consolidating Statement of Operations
Six Months Ended June 30, 2017
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	1,179	$	-	$	1,179
Total operating costs and expenses			495		(344)		-		151
	Income from operations		495		835		-		1,330
Interest expense			(78)		(1)		-		(79)
Loss on extinguishment of debt			(1)		-		-		(1)
Other, net			850		16		(850)		16
	Income before income taxes		1,266		850		(850)		1,266
Income tax expense			(464)		-		-		(464)
	Net income	$	802	$	850	$	(850)	$	802

Condensed Consolidating Statement of Operations
Six Months Ended June 30, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Total operating revenues		$	-	$	680	$	-	$	680
Total operating costs and expenses			(218)		(2,384)		-		(2,602)
	Loss from operations		(218)		(1,704)		-		(1,922)
Interest expense			(107)		(2)		-		(109)
Other, net			(1,713)		(7)		1,713		(7)
	Loss before income taxes		(2,038)		(1,713)		1,713		(2,038)
Income tax benefit			752		-		-		752
	Net loss	$	(1,286)	$	(1,713)	$	1,713	$	(1,286)

Condensed Consolidating Statement of Cash Flows

The following condensed consolidating balance sheets at June 30,2017 and December 31, 2016, condensed consolidating statements of operations for the three and six months ended June 30,2017 and 2016and condensed consolidating statements of cash flows for thesix months ended June 30,2017 and 2016, present financial information for Concho Resources Inc. as the parent on a stand-alone basis (carrying any investments in subsidiaries under the equity method), financial information for the subsidiary guarantors on a stand-alone basis and the consolidation and elimination entries necessary to arrive at the information for the Company on a consolidated basis. All current and deferred income taxes are recorded on Concho Resources Inc., as the subsidiaries are flow-through entities for income tax purposes. The subsidiary guarantors are not restricted from making distributions to the Company.

Condensed Consolidating Statement of Cash Flows
Six Months Ended June 30, 2017
			Parent		Subsidiary	Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Net cash flows provided by operating activities		$	28	$	777	$	-	$	805
Net cash flows used in investing activities			-		(168)		-		(168)
Net cash flows used in financing activities			(28)		-		-		(28)
	Net increase in cash and cash equivalents		-		609		-		609
	Cash and cash equivalents at beginning of period		-		53		-		53
	Cash and cash equivalents at end of period	$	-	$	662	$	-	$	662

Condensed Consolidating Statement of Cash Flows
Six Months Ended June 30, 2016
			Parent		Subsidiary		Consolidating
(in millions)			Issuer		Guarantors		Entries		Total
Net cash flows provided by operating activities		$	12	$	664	$	-	$	676
Net cash flows used in investing activities			-		(412)		-		(412)
Net cash flows used in financing activities			(12)		-		-		(12)
	Net increase in cash and cash equivalents		-		252		-		252
	Cash and cash equivalents at beginning of period		-		229		-		229
	Cash and cash equivalents at end of period	$	-	$	481	$	-	$	481

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Subsequent events (Tables)

6 Months Ended

Jun. 30, 2017

Subsequent Events [Abstract]

New commodity derivative contracts

After June 30,2017, the Company entered into the following oil price swaps and oil basis swaps to hedge additional amounts of the Company’s estimated future production:

				First		Second		Third		Fourth
				Quarter		Quarter		Quarter		Quarter		Total
Oil Price Swaps: (a)
	2017:
		Volume (Bbl)						1,253,000		1,354,000		2,607,000
		Price per Bbl					$	47.76	$	47.73	$	47.74
	2018:
		Volume (Bbl)		1,059,000		869,000		747,000		669,000		3,344,000
		Price per Bbl	$	48.33	$	48.26	$	48.20	$	48.15	$	48.25
	2019:
		Volume (Bbl)		1,002,000		940,000		885,000		845,000		3,672,000
		Price per Bbl	$	49.26	$	49.24	$	49.27	$	49.26	$	49.26
Oil Basis Swaps: (b)
	2017:
		Volume (Bbl)						915,000		1,380,000		2,295,000
		Price per Bbl					$	(1.28)	$	(1.28)	$	(1.28)
	2018:
		Volume (Bbl)		630,000		637,000		644,000		644,000		2,555,000
		Price per Bbl	$	(1.11)	$	(1.11)	$	(1.11)	$	(1.11)	$	(1.11)
	2019:
		Volume (Bbl)		810,000		819,000		828,000		828,000		3,285,000
		Price per Bbl	$	(1.12)	$	(1.12)	$	(1.12)	$	(1.12)	$	(1.12)
(a)	The index prices for the oil price swaps are based on the NYMEX – WTI monthly average futures price.
(b)	The basis differential price is between Midland – WTI and Cushing – WTI.

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Supplementary information (Tables)

6 Months Ended

Jun. 30, 2017

Oil and Gas Exploration and Production Industries Disclosures [Abstract]

Capitalized costs

Capitalized costs

			June 30,		December 31,
(in millions)			2017		2016
Oil and natural gas properties:
	Proved		$	17,364	$	16,620
	Unproved			2,346		1,856
	Less: accumulated depletion			(7,904)		(7,390)
		Net capitalized costs for oil and natural gas properties	$	11,806	$	11,086

costs incurred for oil and natural gas producing activities

Costs incurred for oil and natural gas producing activities

		Three Months Ended				Six Months Ended
		June 30,				June 30,
(in millions)		2017		2016		2017		2016
Property acquisition costs:
	Proved	$	12	$	4	$	139	$	256
	Unproved		87		19		393		158
Exploration			238		165		473		336
Development			145		107		303		190
	Total costs incurred for oil and natural gas properties	$	482	$	295	$	1,308	$	940

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Summary Of Significant Accounting Policies (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Disclosure Summary Of Significant Accounting Policies Narrative [Abstract]
Fees related to operation of jointly owned oil and natural gas properties	$ 4	$ 4	$ 8	$ 8
ASU 2016-09 Cumulative Effect: Forfeiture estimate compensation expense / increase to APIC			8
ASU 2016-09 Cumulative Effect: Deferred tax benefit			3
ASU 2016-09 Cumulative Effect: Excess tax benefits			5
ASU 2016-09 Cumulative Effect: Decrease to retained earnings			0
ASU 2016-09 Cumulative Effect: Decrease to deferred income taxes			8
Excess tax benefit (deficiency) [discrete item]	(2)		6
Forfeitures expense	1		6
Alpha Crude Connector [Member]
Equity Method Investments [Line Items]
Total equity method investment					$ 129
Equity method investment ownership percentage					50.00%
Other [Member]
Equity Method Investments [Line Items]
Total equity method investment	$ 45		$ 45		$ 42
Equity method investment ownership percentage	23.75%		23.75%

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Exploratory Well Costs (Capitalized Exploratory Well Activity) (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2017 USD ($)
Disclosure Exploratory Well Costs Capitalized Exploratory Well Activity [Abstract]
Beginning capitalized exploratory well costs	$ 151
Additions to exploratory well costs pending the determination of proved reserves	268
Reclassifications due to determination of proved reserves	(126)
Ending capitalized exploratory well costs	$ 293

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Exploratory Well Costs (Aging Of Capitalized Exploratory Well Costs Based On The Date Of Drilling) (Detail) $ in Millions	Jun. 30, 2017 USD ($) Number	Dec. 31, 2016 USD ($) Number
Disclosure Exploratory Well Costs Aging Of Capitalized Exploratory Well Costs Based On The Date Of Drilling [Abstract]
Capitalized exploratory well costs that have been capitalized for a period of one year or less	$ 288	$ 141
Capitalized exploratory well costs that have been capitalized for a period greater than one year	5	10
Total capitalized exploratory well costs	$ 293	$ 151
Projects that have Exploratory Well Costs that have been Capitalized for Period Greater than One Year, Number of Projects | Number	6	8

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Acquisitions And Divestitures (Narrative) (Detail) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
(Gain) loss on disposition of assets, net	$ 0	$ 1	$ (654)	$ (110)
Funds held in escrow	60		60		$ 43
Common stock issued in business combination			291	$ 231
Northern Delaware Basin [Member]
Business Acquisition [Line Items]
Total cash consideration paid for acquisition			$ 159
Funds held in escrow					$ 43
Common stock issued in business combination (Shares)			2.2
Common stock issued in business combination			$ 291
Alpha Crude Connector [Member]
Business Acquisition [Line Items]
Proceeds From Sale Of Oil And Gas Property And Equipment			803
(Gain) loss on disposition of assets, net			(656)
Total equity method investment	$ 129		$ 129

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Incentive Plans (Summary of Stock-Based Award Activity) (Detail) - $ / shares		6 Months Ended
		Jun. 30, 2017	Dec. 31, 2016
Restricted Stock Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding		1,182,231	1,157,270
Awards granted	[1]	439,484
Awards cancelled / forfeited		(59,614)
Lapse of restrictions		(354,909)
Weighted average grant date fair value per share/unit		$ 121.81
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding		0	20,000
Options exercised		(20,000)
Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding		396,591	331,526
Awards granted	[2]	108,398
Awards cancelled / forfeited		(43,333)
Lapse of restrictions		0
Weighted average grant date fair value per share/unit		$ 183.48

[1] Weighted average grant date fair value per share is $121.81

[2] Weighted average grant date fair value per unit is $183.48

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Incentive Plans (Summary For Future Stock-Based Compensation Expense) (Detail) $ in Millions	Jun. 30, 2017 USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Remaining 2017	$ 35
2018	48
2019	25
Thereafter	8
Total	$ 116

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Disclosures About Fair Value Measurements (Narrative) (Detail) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2016 USD ($)	Jun. 30, 2017	Dec. 31, 2024 $ / bbl $ / Mcf	Dec. 31, 2020 $ / Mcf	Dec. 31, 2017 $ / bbl $ / Mcf
Disclosure Fair Value Narrative [Abstract]
Management Estimate of Future Oil Price | $ / bbl			53.68		45.26
Management Estimate of Future Natural Gas Price | $ / Mcf			3.03	2.83	3.16
Annual discount rate		10.00%
Carrying Amount	$ 3,438
Impairment Expense	$ 1,525

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Disclosures About Fair Value Measurements (Carrying Amounts And Fair Values Of The Company's Financial Instruments) (Detail) - USD ($) $ in Millions		Jun. 30, 2017	Dec. 31, 2016
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, Assets		$ 225	$ 4
Derivative instruments, Liabilities		0	178
Five Point Five Percent Unsecured Senior Notes Due Twenty Twenty Two [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Unsecured senior notes		619	620
Five Point Five Percent Unsecured Senior Notes Due Twenty Twenty Three [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Unsecured senior notes		1,597	1,621
Four Point Three Seven Five Percent Unsecured Senior Notes [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Unsecured senior notes		614	599
Carrying Reported Amount Fair Value Disclosure [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, Assets		225	4
Derivative instruments, Liabilities		0	178
Carrying Reported Amount Fair Value Disclosure [Member] | Five Point Five Percent Unsecured Senior Notes Due Twenty Twenty Two [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Unsecured senior notes	[1]	594	594
Carrying Reported Amount Fair Value Disclosure [Member] | Five Point Five Percent Unsecured Senior Notes Due Twenty Twenty Three [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Unsecured senior notes	[1]	1,554	1,555
Carrying Reported Amount Fair Value Disclosure [Member] | Four Point Three Seven Five Percent Unsecured Senior Notes [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Unsecured senior notes	[1]	$ 593	$ 592

[1] The carrying value includes associated deferred loan costs and any premium.

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Disclosures About Fair Value Measurements (Company's Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative, Fair Value, Net	$ 225	$ (174)
Commodity Derivative Price Swap Contracts [Member] | Derivative Asset Current [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Asset, Fair Value, Gross Asset	145	59
Derivative Asset, Fair Value, Gross Liability	(10)	(55)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	135	4
Commodity Derivative Price Swap Contracts [Member] | Derivative Asset Noncurrent [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Asset, Fair Value, Gross Asset	94	0
Derivative Asset, Fair Value, Gross Liability	(4)	0
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	90	0
Commodity Derivative Price Swap Contracts [Member] | Derivative Liability Current [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Liability, Fair Value, Gross Liability	(10)	(137)
Derivative Liability, Fair Value, Gross Asset	10	55
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	0	(82)
Commodity Derivative Price Swap Contracts [Member] | Derivative Liability Noncurrent [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Liability, Fair Value, Gross Liability	(4)	(96)
Derivative Liability, Fair Value, Gross Asset	4	0
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	0	(96)
Fair Value Inputs Level 1 [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative, Fair Value, Net	0	0
Fair Value Inputs Level 1 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Asset Current [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0
Fair Value Inputs Level 1 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Asset Noncurrent [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0
Fair Value Inputs Level 1 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Liability Current [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Liability, Fair Value, Gross Liability	0	0
Fair Value Inputs Level 1 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Liability Noncurrent [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Liability, Fair Value, Gross Liability	0	0
Fair Value Inputs Level 2 [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative, Fair Value, Net	225	(174)
Fair Value Inputs Level 2 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Asset Current [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Asset, Fair Value, Gross Asset	145	59
Fair Value Inputs Level 2 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Asset Noncurrent [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Asset, Fair Value, Gross Asset	94	0
Fair Value Inputs Level 2 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Liability Current [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Liability, Fair Value, Gross Liability	(10)	(137)
Fair Value Inputs Level 2 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Liability Noncurrent [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Liability, Fair Value, Gross Liability	(4)	(96)
Fair Value Inputs Level 3 [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative, Fair Value, Net	0	0
Fair Value Inputs Level 3 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Asset Current [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0
Fair Value Inputs Level 3 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Asset Noncurrent [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0
Fair Value Inputs Level 3 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Liability Current [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Liability, Fair Value, Gross Liability	0	0
Fair Value Inputs Level 3 [Member] | Commodity Derivative Price Swap Contracts [Member] | Derivative Liability Noncurrent [Member]
Fair Value Of Derivatives Disclosure Information [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 0	$ 0

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Disclosures About Fair Value Measurements (Carrying Amounts, Estimated Fair Values And Impairment Expense Of Long-Lived Assets For Continuing And Discontinued Operations) (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Disclosure Disclosures About Fair Value Of Financial Instruments Carrying Amounts Estimated Fair Values And Impairment Expense Of Long Lived Assets For Continuing And Discontinued Operations [Abstract]
Carrying Amount	$ 3,438
Estimated Fair Value (Level 3)	1,913
Impairment Expense	$ 1,525

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Derivative Financial Instruments (Gains And Losses Reported In Earnings Related To Commodity Derivative Instruments) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Derivative Financial Instruments Gains And Losses Reported In Earnings Related To Commodity Derivative Instruments [Line Items]
Net settlements received from (paid on) derivatives	$ 68	$ 168	$ 96	$ 427
Gain (loss) on derivatives	209	(298)	495	(217)
Oil Commodity Derivative [Member]
Derivative Financial Instruments Gains And Losses Reported In Earnings Related To Commodity Derivative Instruments [Line Items]
Net settlements received from (paid on) derivatives	70	160	101	412
Gain (loss) on derivatives	199	(281)	465	(209)
Natural Gas Commodity Derivative [Member]
Derivative Financial Instruments Gains And Losses Reported In Earnings Related To Commodity Derivative Instruments [Line Items]
Net settlements received from (paid on) derivatives	(2)	8	(5)	15
Gain (loss) on derivatives	$ 10	$ (17)	$ 30	$ (8)

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Derivative Financial Instruments (Outstanding Commodity Derivative Contracts) (Detail) - Minimum [Member]		3 Months Ended										12 Months Ended
		Dec. 31, 2019 MMBTU bbl $ / bbl $ / MMBTU	Sep. 30, 2019 MMBTU bbl $ / bbl $ / MMBTU	Jun. 30, 2019 MMBTU bbl $ / bbl $ / MMBTU	Mar. 31, 2019 MMBTU bbl $ / bbl $ / MMBTU	Dec. 31, 2018 MMBTU bbl $ / bbl $ / MMBTU	Sep. 30, 2018 MMBTU bbl $ / bbl $ / MMBTU	Jun. 30, 2018 MMBTU bbl $ / bbl $ / MMBTU	Mar. 31, 2018 MMBTU bbl $ / bbl $ / MMBTU	Dec. 31, 2017 MMBTU bbl $ / bbl $ / MMBTU	Sep. 30, 2017 MMBTU bbl $ / bbl $ / MMBTU	Dec. 31, 2019 MMBTU bbl $ / bbl $ / MMBTU	Dec. 31, 2018 MMBTU bbl $ / bbl $ / MMBTU	Dec. 31, 2017 MMBTU bbl $ / bbl $ / MMBTU
Oil Price Swaps [Member]
Derivative [Line Items]
Volume - Current Year | bbl	[1]									7,188,080	7,966,370			15,154,450
Price - Current Year | $ / bbl	[1]									51.87	51.69			51.77
Volume - Year One | bbl	[1]					5,455,007	5,765,318	6,131,170	6,581,629				23,933,124
Price - Year One | $ / bbl	[1]					51.54	51.68	51.84	52.01				51.78
Volume - Year Two | bbl	[1]	3,324,000	3,460,000	3,604,000	3,772,000							14,160,000
Price - Year Two | $ / bbl	[1]	53.61	53.59	53.58	53.6							53.59
Oil Basis Swaps [Member]
Derivative [Line Items]
Volume - Current Year | bbl	[2]									6,302,000	6,302,000			12,604,000
Price - Current Year | $ / bbl	[2]									(0.57)	(0.57)			(0.57)
Volume - Year One | bbl	[2]					5,488,000	5,765,000	6,156,000	6,586,000				23,995,000
Price - Year One | $ / bbl	[2]					(1.04)	(1.04)	(1.04)	(1.05)				(1.04)
Volume - Year Two | bbl	[2]	3,311,000	3,434,000	3,609,000	3,771,000							14,125,000
Price - Year Two | $ / bbl	[2]	(1.19)	(1.19)	(1.18)	(1.18)							(1.19)
Natural Gas Price Swaps [Member]
Derivative [Line Items]
Volume - Current Year | MMBTU	[3]									14,673,000	15,895,441			30,568,441
Price - Current Year | $ / MMBTU	[3]									3.1	3.12			3.11
Volume - Year One | MMBTU	[3]					9,904,000	10,219,000	10,641,000	11,156,000				41,920,000
Price - Year One | $ / MMBTU	[3]					3.04	3.05	3.05	3.06				3.05
Volume - Year Two | MMBTU	[3]	2,489,535	2,578,537	2,681,387	2,791,533							10,540,992
Price - Year Two | $ / MMBTU	[3]	2.85	2.85	2.85	2.86							2.85

[1] The index prices for the oil price swaps are based on the New York Mercantile Exchange (“NYMEX”) – West Texas Intermediate (“WTI”) monthly average futures price.

[2] The basis differential price is between Midland – WTI and Cushing – WTI.

[3] The index prices for the natural gas price swaps are based on the NYMEX – Henry Hub last trading day futures price.

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Derivative Counterparties (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Derivative Counterparties Fair Value [Line Items]
Derivative, Fair Value, Net	$ 225	$ (174)
Wells Fargo Bank NA [Member]
Derivative Counterparties Fair Value [Line Items]
Credit Risk Derivative Assets At Fair Value	32
J.P. Morgan Chase Bank [Member]
Derivative Counterparties Fair Value [Line Items]
Credit Risk Derivative Assets At Fair Value	32
Citibank, N.A. [Member]
Derivative Counterparties Fair Value [Line Items]
Credit Risk Derivative Assets At Fair Value	24
ING Bank [Member]
Derivative Counterparties Fair Value [Line Items]
Credit Risk Derivative Assets At Fair Value	22
Societe Generale [Member]
Derivative Counterparties Fair Value [Line Items]
Credit Risk Derivative Assets At Fair Value	$ 20

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Debt (Summary Of Long-Term Debt) (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Credit facility	$ 0	$ 0
Unamortized original issue premium	21	22
Senior notes issuance costs, net	(30)	(31)
Less: current portion	0	0
Total long-term debt	2,741	2,741
5.5% unsecured senior notes due 2022
Debt Instrument [Line Items]
Unsecured senior notes	600	600
5.5% unsecured senior notes due 2023
Debt Instrument [Line Items]
Unsecured senior notes	1,550	1,550
4.375% unsecured senior notes due 2025
Debt Instrument [Line Items]
Unsecured senior notes	$ 600	$ 600

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Debt (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Debt Disclosure [Line Items]
Line of credit maturity date			May 09, 2022
Aggregate lender commitments	$ 2,000		$ 2,000
Aggregate maximum borrowing base	3,000		3,000
Loss on extinguishment of debt	$ (1)	$ 0	$ (1)	$ 0

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Debt (Principal Maturities Of Debt) (Detail) $ in Millions	Jun. 30, 2017 USD ($)
Disclosure Debt Principal Maturities Of Debt [Abstract]
Remaining 2017	$ 0
2018	0
2019	0
2020	0
2021	0
2022	600
Thereafter	2,150
Total	$ 2,750

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Debt (Summary Of Interest Expense) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Disclosure Debt Summary Of Interest Expense [Abstract]
Cash payments for interest	$ (4)	$ (64)	$ (65)	$ (106)
Non-cash interest	1	1	4	4
Net changes in accruals	34	(10)	10	(1)
Total interest expense	$ 39	$ 55	$ 79	$ 109

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Commitments And Contingencies (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Commitments [Line Items]
Operating leases, lease payments	$ 3	$ 2	$ 5	$ 4
Accrued Exposure					$ 7

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Commitments And Contingencies (Future Commitments) (Detail) $ in Millions	Jun. 30, 2017 USD ($)
Disclosure Commitments And Contingencies Future Commitments [Abstract]
Remaining 2017	$ 24
2018	51
2019	53
2020	26
2021	22
2022	23
Thereafter	84
Total	$ 283

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Commitments And Contingencies (Future Minimum Lease Commitments Under Non-Cancellable Operating Leases) (Detail) $ in Millions	Jun. 30, 2017 USD ($)
Disclosure Commitments And Contingencies Future Minimum Lease Commitments Under Non Cancellable Operating Leases [Abstract]
Remaining 2017	$ 5
2018	9
2019	7
2020	6
2021	4
2022	0
Thereafter	1
Total	$ 32

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Income Taxes (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Disclosure Income Taxes Narrative [Abstract]
Effective tax rate	37.80%	37.30%	36.60%	36.90%
Excess tax benefit (deficiency) [discrete item]	$ (2)		$ 6

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Related Party Transactions (Schedule Of Related Party Transactions) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Related Party Transaction [Line Items]
Ownership interest in partnership	3.50%
Partnership (Director Ownership Interest) [Member]
Related Party Transaction [Line Items]
Amounts paid	$ 2	$ 1	$ 4	$ 2

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Net Income Per Share (Narrative) (Detail)	6 Months Ended
	Jun. 30, 2017
Disclosure Net Income Per Share Narrative [Abstract]
Performance unit awards vesting period	36 months
Maximum Payout Value on Performance Units	300.00%
Minimum Payout Value on Performance Units	0.00%

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Net Income Per Share (Reconciliation Of Earnings Attributable To Common Shares Basic And Diluted) (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss)		$ 152	$ (266)	$ 802	$ (1,286)
Participating basic earnings	[1]	(1)	0	(6)	0
Basic earnings attributable to common stockholders		151	(266)	796	(1,286)
Reallocation of participating earnings		0	0	0	0
Diluted earnings attributable to common stockholders		$ 151	$ (266)	$ 796	$ (1,286)

[1] Unvested restricted stock awards represent participating securities because they participate in nonforfeitable dividends or distributions with the common equity holders of the Company. Participating earnings represent the distributed earnings of the Company attributable to the participating securities. Unvested restricted stock awards do not participate in undistributed net losses as they are not contractually obligated to do so.

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Net Income Per Share (Reconciliation Of The Weighted Average Common Shares Outstanding) (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reconciliation Of Basic Weighted Average Common Shares Outstanding To Diluted Weighted Average Common Shares Outstanding [Line Items]
Basic	147,304	130,400	147,071	129,398
Diluted	147,766	130,400	147,658	129,398
Stock Options [Member]
Reconciliation Of Basic Weighted Average Common Shares Outstanding To Diluted Weighted Average Common Shares Outstanding [Line Items]
Dilutive shares	0	0	6	0
Performance Units [Member]
Reconciliation Of Basic Weighted Average Common Shares Outstanding To Diluted Weighted Average Common Shares Outstanding [Line Items]
Dilutive shares	462	0	581	0

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Net Income Per Share (Summary Of The Common Stock Options And Restricted Stock) (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Performance Units [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive common shares	107	0	108	0

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Subsidiary Guarantors (Condensed Consolidating Balance Sheet) (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
ASSETS
Accounts receivable - related parties	$ 0	$ 0
Other current assets	1,304	546
Oil and natural gas properties, net	11,806	11,086
Property and equipment, net	234	216
Investment in subsidiaries	0	0
Other long-term assets	247	271
Total assets	13,591	12,119
LIABILITIES AND EQUITY
Accounts payable - related parties	0	0
Other current liabilities	766	753
Long-term debt	2,741	2,741
Other long-term liabilities	1,355	1,002
Equity	8,729	7,623
Total liabilities and stockholders' equity	13,591	12,119
Consolidation Eliminations [Member]
ASSETS
Accounts receivable - related parties	(8,347)	(8,655)
Other current assets	0	0
Oil and natural gas properties, net	0	0
Property and equipment, net	0	0
Investment in subsidiaries	(2,831)	(1,989)
Other long-term assets	0	0
Total assets	(11,178)	(10,644)
LIABILITIES AND EQUITY
Accounts payable - related parties	(8,347)	(8,655)
Other current liabilities	0	0
Long-term debt	0	0
Other long-term liabilities	0	0
Equity	(2,831)	(1,989)
Total liabilities and stockholders' equity	(11,178)	(10,644)
Parent Company [Member]
ASSETS
Accounts receivable - related parties	8,986	8,991
Other current assets	167	12
Oil and natural gas properties, net	0	0
Property and equipment, net	0	0
Investment in subsidiaries	2,831	1,989
Other long-term assets	105	11
Total assets	12,089	11,003
LIABILITIES AND EQUITY
Accounts payable - related parties	(639)	(336)
Other current liabilities	46	114
Long-term debt	2,741	2,741
Other long-term liabilities	1,212	861
Equity	8,729	7,623
Total liabilities and stockholders' equity	12,089	11,003
Guarantor Subsidiaries [Member]
ASSETS
Accounts receivable - related parties	(639)	(336)
Other current assets	1,137	534
Oil and natural gas properties, net	11,806	11,086
Property and equipment, net	234	216
Investment in subsidiaries	0	0
Other long-term assets	142	260
Total assets	12,680	11,760
LIABILITIES AND EQUITY
Accounts payable - related parties	8,986	8,991
Other current liabilities	720	639
Long-term debt	0	0
Other long-term liabilities	143	141
Equity	2,831	1,989
Total liabilities and stockholders' equity	$ 12,680	$ 11,760

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Subsidiary Guarantors (Condensed Consolidating Statement Of Operations) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Condensed Financial Statements Captions [Line Items]
Total operating revenues	$ 567	$ 396	$ 1,179	$ 680
Total operating costs and expenses	(298)	(765)	151	(2,602)
Income (loss) from operations	269	(369)	1,330	(1,922)
Interest expense	(39)	(55)	(79)	(109)
Loss on extinguishment of debt	(1)	0	(1)	0
Other, net	16	0	16	(7)
Income (loss) before income taxes	245	(424)	1,266	(2,038)
Income tax (expense) benefit	(93)	158	(464)	752
Net income (loss)	152	(266)	802	(1,286)
Consolidation Eliminations [Member]
Condensed Financial Statements Captions [Line Items]
Total operating revenues	0	0	0	0
Total operating costs and expenses	0	0	0	0
Income (loss) from operations	0	0	0	0
Interest expense	0	0	0	0
Loss on extinguishment of debt	0		0
Other, net	(74)	73	(850)	1,713
Income (loss) before income taxes	(74)	73	(850)	1,713
Income tax (expense) benefit	0	0	0	0
Net income (loss)	(74)	73	(850)	1,713
Parent Company [Member]
Condensed Financial Statements Captions [Line Items]
Total operating revenues	0	0	0	0
Total operating costs and expenses	210	(297)	495	(218)
Income (loss) from operations	210	(297)	495	(218)
Interest expense	(38)	(54)	(78)	(107)
Loss on extinguishment of debt	(1)		(1)
Other, net	74	(73)	850	(1,713)
Income (loss) before income taxes	245	(424)	1,266	(2,038)
Income tax (expense) benefit	(93)	158	(464)	752
Net income (loss)	152	(266)	802	(1,286)
Guarantor Subsidiaries [Member]
Condensed Financial Statements Captions [Line Items]
Total operating revenues	567	396	1,179	680
Total operating costs and expenses	(508)	(468)	(344)	(2,384)
Income (loss) from operations	59	(72)	835	(1,704)
Interest expense	(1)	(1)	(1)	(2)
Loss on extinguishment of debt	0		0
Other, net	16	0	16	(7)
Income (loss) before income taxes	74	(73)	850	(1,713)
Income tax (expense) benefit	0	0	0	0
Net income (loss)	$ 74	$ (73)	$ 850	$ (1,713)

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Subsidiary Guarantors (Condensed Consolidating Statement Of Cash Flows) (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Condensed Financial Statements Captions [Line Items]
Net cash flows provided by (used in) operating activities	$ 805	$ 676
Net cash flows provided by (used in) investing activities	(168)	(412)
Net cash flows provided by (used in) financing activities	(28)	(12)
Net increase (decrease) in cash and cash equivalents	609	252
Cash and cash equivalents at beginning of period	53	229
Cash and cash equivalents at end of period	662	481
Consolidation Eliminations [Member]
Condensed Financial Statements Captions [Line Items]
Net cash flows provided by (used in) operating activities	0	0
Net cash flows provided by (used in) investing activities	0	0
Net cash flows provided by (used in) financing activities	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	0	0
Parent Company [Member]
Condensed Financial Statements Captions [Line Items]
Net cash flows provided by (used in) operating activities	28	12
Net cash flows provided by (used in) investing activities	0	0
Net cash flows provided by (used in) financing activities	(28)	(12)
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	0	0
Guarantor Subsidiaries [Member]
Condensed Financial Statements Captions [Line Items]
Net cash flows provided by (used in) operating activities	777	664
Net cash flows provided by (used in) investing activities	(168)	(412)
Net cash flows provided by (used in) financing activities	0	0
Net increase (decrease) in cash and cash equivalents	609	252
Cash and cash equivalents at beginning of period	53	229
Cash and cash equivalents at end of period	$ 662	$ 481

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Subsequent Events (Narrative) (Detail) - USD ($) $ in Millions	1 Months Ended
	Jul. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Subsequent Event [Line Items]
Funds held in escrow		$ 60	$ 43
Subsequent Event [Member]
Subsequent Event [Line Items]
Total cash consideration paid for acquisition	$ 600
Subsequent cash consideration paid for acquisition	$ 540

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Subsequent Events (New Commodity Derivative Contracts) (Detail) - Minimum [Member]		3 Months Ended										12 Months Ended
		Dec. 31, 2019 MMBTU bbl $ / bbl $ / MMBTU	Sep. 30, 2019 MMBTU bbl $ / bbl $ / MMBTU	Jun. 30, 2019 MMBTU bbl $ / bbl $ / MMBTU	Mar. 31, 2019 MMBTU bbl $ / bbl $ / MMBTU	Dec. 31, 2018 MMBTU bbl $ / bbl $ / MMBTU	Sep. 30, 2018 MMBTU bbl $ / bbl $ / MMBTU	Jun. 30, 2018 MMBTU bbl $ / bbl $ / MMBTU	Mar. 31, 2018 MMBTU bbl $ / bbl $ / MMBTU	Dec. 31, 2017 MMBTU bbl $ / bbl $ / MMBTU	Sep. 30, 2017 MMBTU bbl $ / bbl $ / MMBTU	Dec. 31, 2019 MMBTU bbl $ / bbl $ / MMBTU	Dec. 31, 2018 MMBTU bbl $ / bbl $ / MMBTU	Dec. 31, 2017 MMBTU bbl $ / bbl $ / MMBTU
Oil Price Swaps [Member]
Subsequent Event [Line Items]
Volume - Current Year | bbl	[1]									7,188,080	7,966,370			15,154,450
Price - Current Year | $ / bbl	[1]									51.87	51.69			51.77
Volume - Year One | bbl	[1]					5,455,007	5,765,318	6,131,170	6,581,629				23,933,124
Price - Year One | $ / bbl	[1]					51.54	51.68	51.84	52.01				51.78
Volume - Year Two | bbl	[1]	3,324,000	3,460,000	3,604,000	3,772,000							14,160,000
Price - Year Two | $ / bbl	[1]	53.61	53.59	53.58	53.6							53.59
Oil Basis Swaps [Member]
Subsequent Event [Line Items]
Volume - Current Year | bbl	[2]									6,302,000	6,302,000			12,604,000
Price - Current Year | $ / bbl	[2]									(0.57)	(0.57)			(0.57)
Volume - Year One | bbl	[2]					5,488,000	5,765,000	6,156,000	6,586,000				23,995,000
Price - Year One | $ / bbl	[2]					(1.04)	(1.04)	(1.04)	(1.05)				(1.04)
Volume - Year Two | bbl	[2]	3,311,000	3,434,000	3,609,000	3,771,000							14,125,000
Price - Year Two | $ / bbl	[2]	(1.19)	(1.19)	(1.18)	(1.18)							(1.19)
Natural Gas Price Swaps [Member]
Subsequent Event [Line Items]
Volume - Current Year | MMBTU	[3]									14,673,000	15,895,441			30,568,441
Price - Current Year | $ / MMBTU	[3]									3.1	3.12			3.11
Volume - Year One | MMBTU	[3]					9,904,000	10,219,000	10,641,000	11,156,000				41,920,000
Price - Year One | $ / MMBTU	[3]					3.04	3.05	3.05	3.06				3.05
Volume - Year Two | MMBTU	[3]	2,489,535	2,578,537	2,681,387	2,791,533							10,540,992
Price - Year Two | $ / MMBTU	[3]	2.85	2.85	2.85	2.86							2.85
Subsequent Event [Member] | Oil Price Swaps [Member]
Subsequent Event [Line Items]
Volume - Current Year | bbl	[1]									1,354,000	1,253,000			2,607,000
Price - Current Year | $ / bbl	[1]									47.73	47.76			47.74
Volume - Year One | bbl	[1]					669,000	747,000	869,000	1,059,000				3,344,000
Price - Year One | $ / bbl	[1]					48.15	48.2	48.26	48.33				48.25
Volume - Year Two | bbl	[1]	845,000	885,000	940,000	1,002,000							3,672,000
Price - Year Two | $ / bbl	[1]	49.26	49.27	49.24	49.26							49.26
Subsequent Event [Member] | Oil Basis Swaps [Member]
Subsequent Event [Line Items]
Volume - Current Year | bbl	[2]									1,380,000	915,000			2,295,000
Price - Current Year | $ / bbl	[2]									(1.28)	(1.28)			(1.28)
Volume - Year One | bbl	[2]					644,000	644,000	637,000	630,000				2,555,000
Price - Year One | $ / bbl	[2]					(1.11)	(1.11)	(1.11)	(1.11)				(1.11)
Volume - Year Two | bbl	[2]	828,000	828,000	819,000	810,000							3,285,000
Price - Year Two | $ / bbl	[2]	(1.12)	(1.12)	(1.12)	(1.12)							(1.12)

[1] The index prices for the oil price swaps are based on the New York Mercantile Exchange (“NYMEX”) – West Texas Intermediate (“WTI”) monthly average futures price.

[2] The basis differential price is between Midland – WTI and Cushing – WTI.

[3] The index prices for the natural gas price swaps are based on the NYMEX – Henry Hub last trading day futures price.

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Supplementary Information (Capitalized Costs) (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Disclosure Supplementary Information Capitalized Costs [Abstract]
Proved	$ 17,364	$ 16,620
Unproved	2,346	1,856
Less: accumulated depletion	(7,904)	(7,390)
Net capitalized costs for oil and natural gas properties	$ 11,806	$ 11,086

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Supplementary Information (Costs Incurred For Oil And Natural Gas Producing Activities) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Disclosure Supplementary Information Costs Incurred For Oil And Natural Gas Producing Activities [Abstract]
Proved	$ 12	$ 4	$ 139	$ 256
Unproved	87	19	393	158
Exploration	238	165	473	336
Development	145	107	303	190
Total costs incurred for oil and natural gas properties	$ 482	$ 295	$ 1,308	$ 940