View Filing Data

Deferred compensation liabilities

1,828,345

1,826,775

Deferred tax liabilities

606,482

777,947

Derivative liabilities

19,243

127,090

104,792

Asset retirement obligations and other liabilities

255,863

254,590

Total liabilities

3,915,252

4,140,373

Commitments and contingencies

Stockholders’ Equity

Preferred stock, $1 par, 10,000,000 shares authorized, none issued and outstanding

Common stock, $0.01 par, 475,000,000 shares authorized, 170,081,406 issued at June 30, 2016 and 169,375,743 issued at December 31, 2015

1,701

1,693

Common stock held in treasury, 45,511 shares at June 30, 2016 and 59,283 shares at December 31, 2015

(1,733)

(2,245)

Additional paid-in capital

2,470,814

2,442,623

Retained earnings (deficit)

(5,855)

317,587

Total stockholders’ equity

2,464,927

2,759,658

Total liabilities and stockholders’ equity

$ 6,380,179

$ 6,900,031

[1]	Includes capitalized asset retirement costs and the associated accumulated amortization.

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts on accounts receivable	$ 4,722	$ 4,994
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	475,000,000	475,000,000
Common stock, shares issued	170,081,406	169,375,743
Common stock held in treasury, shares	45,511	59,283

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues and other income:
Natural gas, NGLs and oil sales	$ 224,606	$ 258,053	$ 434,093	$ 583,536
Derivative fair value (loss) income	(162,798)	(34,791)	(75,890)	88,048
Brokered natural gas, marketing and other	39,989	21,339	75,007	35,824
Total revenues and other income	101,797	244,601	433,210	707,408
Costs and expenses:
Direct operating	20,671	34,780	44,725	71,917
Transportation, gathering and compression	136,844	95,198	262,107	184,624
Production and ad valorem taxes	6,049	9,242	11,936	19,170
Brokered natural gas and marketing	40,925	27,031	77,483	48,593
Exploration	6,785	5,025	11,698	12,911
Abandonment and impairment of unproved properties	7,059	12,330	17,687	23,821
General and administrative	46,064	55,964	86,721	104,293
Memorial merger expenses	2,621	0	2,621	0
Termination costs	5	417	167	6,367
Deferred compensation plan	25,746	(7,282)	41,802	(12,906)
Interest	37,758	43,479	75,497	82,686
Depletion, depreciation and amortization	122,390	151,895	242,951	299,185
Impairment of proved properties	0	0	43,040	0
Loss (gain) on the sale of assets	3,304	(2,909)	4,947	(2,734)
Total costs and expenses	456,221	425,170	923,382	837,927
Loss before income taxes	(354,424)	(180,569)	(490,172)	(130,519)
Income tax benefit:
Current	0	0	0	0
Deferred	(129,488)	(61,975)	(173,526)	(39,609)
Total income tax benefit	(129,488)	(61,975)	(173,526)	(39,609)
Net loss	$ (224,936)	$ (118,594)	$ (316,646)	$ (90,910)
Net loss per common share:
Basic	$ (1.35)	$ (0.71)	$ (1.90)	$ (0.55)
Diluted	(1.35)	(0.71)	(1.90)	(0.55)
Dividends paid per common share	$ 0.02	$ 0.04	$ 0.04	$ 0.08
Weighted average common shares outstanding:
Basic	167,126	166,421	166,964	166,230
Diluted	167,126	166,421	166,964	166,230

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating activities:
Net loss	$ (316,646)	$ (90,910)
Adjustments to reconcile net loss to net cash provided from operating activities:
Deferred income tax benefit	(173,526)	(39,609)
Depletion, depreciation and amortization and impairment	285,991	299,185
Exploration dry hole costs	0	106
Abandonment and impairment of unproved properties	17,687	23,821
Derivative fair value loss (income)	75,890	(88,048)
Cash settlements on derivative financial instruments	207,544	222,716
Allowance for bad debt	450	250
Amortization of deferred financing costs, loss on extinguishment of debt and other	3,437	3,090
Deferred and stock-based compensation	71,718	19,792
Loss (gain) on the sale of assets	4,947	(2,734)
Changes in working capital:
Accounts receivable	41,955	73,695
Inventory and other	10,500	(3,749)
Accounts payable	(19,194)	3,492
Accrued liabilities and other	(41,149)	(50,955)
Net cash provided from operating activities	169,604	370,142
Investing activities:
Additions to natural gas and oil properties	(241,109)	(671,166)
Additions to field service assets	(1,304)	(1,574)
Acreage purchases	(23,554)	(51,450)
Other	0	(75)
Proceeds from disposal of assets	190,803	14,301
Purchases of marketable securities held by the deferred compensation plan	(22,115)	(19,897)
Proceeds from the sales of marketable securities held by the deferred compensation plan	22,997	24,992
Net cash used in investing activities	(74,282)	(704,869)
Financing activities:
Borrowings on credit facilities	647,000	1,009,000
Repayments on credit facilities	(739,000)	(1,368,000)
Issuance of senior notes	0	750,000
Debt issuance costs	(124)	(13,929)
Dividends paid	(6,796)	(13,534)
Change in cash overdrafts	(6,804)	(35,921)
Proceeds from the sales of common stock held by the deferred compensation plan	10,313	7,184
Net cash (used in) provided from financing activities	(95,411)	334,800
(Decrease) increase in cash and cash equivalents	(89)	73
Cash and cash equivalents at beginning of period	471	448
Cash and cash equivalents at end of period	$ 382	$ 521

Summary of Organization and Nature of Business	6 Months Ended
Summary of Organization and Nature of Business	Jun. 30, 2016
Industry Specific Policies [Abstract]
Summary of Organization and Nature of Business	(1) SUMMARY OF ORGANIZATION AND NATURE OF BUSINESS Range Resources Corporation (“Range,” “we,” “us,” or “our”) is a Fort Worth, Texas-based independent natural gas, natural gas liquids (“NGLs”) and oil company primarily engaged in the exploration, development and acquisition of natural gas and oil properties in the Appalachian region of the United States. Our objective is to build stockholder value through consistent growth in reserves and production on a cost-efficient basis. Range is a Delaware corporation with our common stock listed and traded on the New York Stock Exchange under the symbol “RRC.”

Basis of Presentation	6 Months Ended
Basis of Presentation	Jun. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	(2) BASIS OF PRESENTATION These interim financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Range Resources Corporation 2015 Annual Report on Form 10-K filed with the Securities and Exchange Commission (the “SEC”) on February 25, 2016. The results of operations for the second quarter and the six months ended June 30, 2016 are not necessarily indicative of the results to be expected for the full year. These consolidated financial statements are unaudited but, in the opinion of management, reflect all adjustments necessary for fair presentation of the results for the periods presented. All adjustments are of a normal recurring nature unless otherwise disclosed. These consolidated financial statements, including selected notes, have been prepared in accordance with the applicable rules of the SEC and do not include all of the information and disclosures required by accounting principles generally accepted in the United States of America (“U.S. GAAP”) for complete financial statements.

New Accounting Standards	6 Months Ended
New Accounting Standards	Jun. 30, 2016
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
New Accounting Standards	(3) NEW ACCOUNTING STANDARDS Not Yet Adopted In May 2014, an accounting standards update was issued that supersedes the existing revenue recognition requirements. This standard includes a five-step revenue recognition model to depict the transfer of goods or services to customers in an amount that reflects the consideration to which we expect to be entitled in exchange for those goods or services. Among other things, the standard also eliminates industry-specific revenue guidance, requires enhanced disclosures about revenue, provides guidance for transactions that were not previously addressed comprehensively and improves guidance for multiple-element arrangements. This standard is effective for us in first quarter 2018 and will be applied retrospectively to each prior reporting period presented or with the cumulative effect of initially applying the update recognized at the date of initial application. Early adoption is permitted with an effective date no earlier than first quarter 2017. We are evaluating the provisions of this accounting standards update and assessing the impact, if any, it may have on our consolidated results of operations, financial position or cash flows. In August 2014, an accounting standards update was issued that requires management to assess an entity’s ability to continue as a going concern by incorporating and expanding upon certain principles that are currently in United States auditing standards. This standard is effective for us in fourth quarter 2016 and early adoption is permitted. We do not expect the adoption of this standard to have a significant impact on our consolidated results of operations, financial position or cash flows. In February 2016, an accounting standards update was issued that requires an entity to recognize a right-of-use asset and lease liability for all leases with terms of more than 12 months. Classification of leases as either a finance or operating lease will determine the recognition, measurement and presentation of expenses. This accounting standards update also requires certain quantitative and qualitative disclosures about leasing arrangements. This standard is effective for us in first quarter 2019 and should be applied using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements and early adoption is permitted. We are evaluating the provisions of this accounting standards update and assessing the impact it may have, if any, on our consolidated results of operations, financial position or cash flows. In March 2016, an accounting standards update was issued that simplifies several aspects of the accounting for share-based payment award transactions. Among other things, this new guidance will require all income tax effects of share-based awards to be recognized in the statement of operations when the awards vest or are settled, will allow an employer to repurchase more of an employee’s shares for tax withholding purposes than it can today without triggering liability accounting and will allow a policy election to account for forfeitures as they occur. This standard is effective for us in first quarter 2017 with prospective application and early adoption is permitted. We are evaluating the provisions of this accounting standards update and assessing the impact it may have, if any, on our consolidated results of operations, financial position or cash flows. Recently Adopted In April 2015, an accounting standards update was issued that requires debt issuance costs to be presented in the balance sheet as a direct reduction from the associated debt liability. This standard was effective for the reporting period beginning on January 1, 2016 with early adoption permitted. As of December 31, 2015, we adopted this standard retrospectively and have accounted for the debt issuance costs as a reduction of the associated debt liability. This adoption only affected our consolidated balance sheets and did not have an impact on our consolidated results of operations or cash flows. As of June 30, 2016, unamortized debt issuance costs related to our bank credit facility exceeded our credit facility balance. The amount of debt issuance costs which exceeded the credit facility balance has been presented in other assets on our consolidated balance sheet. In November 2015, an accounting standards update was issued which requires entities to classify all deferred tax assets and liabilities as noncurrent on the balance sheet instead of separating deferred taxes into current and noncurrent amounts. This standard is effective for the reporting period beginning January 1, 2017 with early adoption permitted. As of December 31, 2015, we adopted this standard retrospectively and reclassified our current deferred tax assets and liabilities into non-current deferred tax assets and liabilities. This adoption only affected our consolidated balance sheets and did not have an impact on our consolidated results of operations or cash flows.

The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6507316

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=66092750

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22583-107794

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22580-107794

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.10-01.(b)(6))
-URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accounting Change
-URI http://asc.fasb.org/extlink&oid=6503790

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22499-107794

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Retrospective Application
-URI http://asc.fasb.org/extlink&oid=6523989

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305

Reference 11: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305

Dispositions and Acquisitions	6 Months Ended
Dispositions and Acquisitions	Jun. 30, 2016
Business Combinations [Abstract]
Dispositions and Acquisitions	(4) DISPOSITIONS AND ACQUISITIONS 2016 Dispositions We recognized a pretax net loss on the sale of assets of $3.3 million in second quarter 2016 compared to a pretax net gain of $2.9 million in the same period of the prior year and a pretax net loss on the sale of assets of $4.9 million in the six months ended June 30, 2016 compared to a pretax net gain of $2.7 million in the same period of the prior year. Western Oklahoma. In second quarter 2016, we sold certain properties in Western Oklahoma for proceeds of $77.7 million and we recorded a $2.7 million loss related to this sale, after closing adjustments. Pennsylvania. In first quarter 2016, we sold our non-operated interest in certain wells and gathering facilities in northeast Pennsylvania for proceeds of $111.5 million. After closing adjustments, we recorded a loss of $2.1 million related to this sale. Other. In the second quarter 2016, we sold miscellaneous inventory and surface property for proceeds of $74,000 resulting in a loss of $640,000. In first quarter 2016, we sold miscellaneous proved and unproved properties, inventory, other assets and surface acreage for proceeds of $1.6 million resulting in a gain of $443,000. Included in the $1.6 million of proceeds is $1.2 million received from the sale of proved properties in Mississippi and South Texas. 2015 Dispositions In second quarter 2015, we sold miscellaneous unproved properties and inventory for proceeds of $3.6 million resulting in a gain of $2.9 million. In first quarter 2015, we sold miscellaneous unproved property, proved property and inventory for proceeds of $10.7 million resulting in a loss of $175,000. Included in the $10.7 million of proceeds is $10.5 million received from the sale of certain West Texas properties which closed in February 2015. Proposed Memorial Merger On May 15, 2016, Range and Memorial Resource Development Corp. (“Memorial”) entered into an Agreement and Plan of Merger (the “Merger Agreement”) which provides for the Merger of Memorial and Range. Pursuant to the terms of the Merger Agreement, a wholly-owned subsidiary of Range will merge with and into Memorial, with Memorial surviving as a wholly-owned subsidiary of Range (the “Merger”). In order to complete the Merger, among other conditions, Range stockholders must approve the issuance of Range common stock to Memorial stockholders in connection with the Merger and Memorial stockholders must approve and adopt the Merger Agreement and the transactions contemplated by the Merger Agreement. If the Merger is completed, each share of Memorial common stock outstanding immediately before that time (including outstanding shares of restricted Memorial common stock, all of which will become fully vested and unrestricted under the terms of the Merger Agreement) will automatically be converted into the right to receive 0.375 of a share of Range common stock. This exchange ratio is fixed and will not be adjusted to reflect stock price changes prior to the closing of the Merger. Based on the closing price of Range common stock on the NYSE on May 13, 2016, the last trading day before public announcement of the Merger, the aggregate equity value of the Merger consideration payable to Memorial stockholders was approximately $3.2 billion. We may choose to use the availability under our current bank credit facility to complete the proposed Merger which includes the repayment of Memorial’s credit facility and the redemption of Memorial’s senior notes. Based on the estimated number of shares of Range and Memorial common stock that will be outstanding immediately prior to the closing of the Merger, we estimate that, upon such closing, existing Range stockholders will own approximately 69% of Range’s outstanding shares and former Memorial stockholders will own approximately 31% of Range’s outstanding shares. At a special meeting of Range stockholders, which is currently expected to be held on September 15, 2016, Range stockholders will be asked to vote on the proposal to approve the issuance of shares of Range common stock to Memorial stockholders in connection with the Merger. Approval of this proposal requires the affirmative vote of a majority of the shares of Range common stock, present in person or represented by proxy at the Range special meeting and entitled to vote thereon, assuming a quorum is present. The record date for the special meeting is expected to be August 10, 2016. At a special meeting of Memorial stockholders, Memorial stockholders will be asked to vote on a proposal to approve and adopt the Merger Agreement and the transactions contemplated by the Merger Agreement, including the Merger. Approval of this proposal requires the affirmative vote of a majority of the outstanding shares of Memorial common stock entitled to vote thereon, assuming a quorum is present. At the special meeting, Memorial stockholders will also be asked to approve, on an advisory (non-binding) basis, the compensation that may be paid or become payable to Memorial’s named executive officers in connection with the Merger. The foregoing description of the Merger Agreement is only a summary, does not purport to be complete and is qualified in its entirety by reference to the Merger Agreement, which is filed hereto as Exhibit 2.1 and is incorporated herein by reference.

Income Taxes

6 Months Ended

Jun. 30, 2016

Income Tax Disclosure [Abstract]

Income Taxes

(5) INCOME TAXES

Income tax benefit was as follows (in thousands):

		Three Months Ended June 30,						Six Months Ended June 30,
		2016			2015			2016			2015
Income tax benefit	$	(129,488	)	$	(61,975	)	$	(173,526	)	$	(39,609	)
Effective tax rate		36.5	%		34.3	%		35.4	%		30.3	%

We compute our quarterly taxes under the effective tax rate method based on applying an anticipated annual effective rate to our year-to-date income, except for discrete items. Income taxes for discrete items are computed and recorded in the period that the specific transaction occurs. For second quarter and the six months ended June 30, 2016 and 2015, our overall effective tax rate was different than the federal statutory rate of 35% due primarily to state income taxes, valuation allowances and other permanent differences. The three months ended June 30, 2016 includes $3.2 million and the six months ended June 30, 2016 includes $7.7 million of tax expense related to an increase in our valuation allowance for state net operating loss carryforwards that we do not believe are realizable. The three months ended June 30, 2016 includes an income tax expense of $2.6 million and the six months ended June 30, 2016 includes an income tax expense of $2.5 million to adjust the valuation allowance on our deferred tax asset related to future deferred compensation plan distributions of our senior executives. In addition, for the six months ended June 30, 2016, we recorded income tax expense of $3.7 million related to equity compensation because we no longer have a hypothetical additional paid-in capital pool (“APIC Pool”) available to offset reduced tax benefits for the excess of financial accounting compensation expense over the corporate income tax deduction. The hypothetical APIC Pool represents the tax benefit of the cumulative excess of corporate income tax deductions over financial accounting compensation expense recognized for equity-based compensation awards which have fully vested. The APIC Pool will increase or decrease each year as equity awards vest. Shortfalls generated by the excess of compensation expense for financial accounting purposes over the corresponding corporate income tax deduction are charged to the APIC Pool rather than income tax expense. Once the APIC Pool is fully depleted, the tax effect of any excess of financial accounting expense over the corresponding corporate income tax deduction is recorded as income tax expense. The three months ended June 30, 2015 includes income tax expense of $6.1 million and the six months ended June 30, 2015 includes income tax expense of $11.3 million related to increases in our valuation allowances for state net operating loss carryforwards and credit carryforwards. The three months ended June 30, 2015 also includes income tax expense of $1.1 million and the six months ended June 30, 2015 includes income tax benefit of $874,000 adjusting our valuation allowance for our deferred tax asset related to future deferred compensation plan distributions of our senior executives.

Loss Per Common Share

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Loss Per Common Share

(6) LOSS PER COMMON SHARE

Basic income or loss per share attributable to common shareholders is computed as (1) income or loss attributable to common shareholders (2) less income allocable to participating securities (3) divided by weighted average basic shares outstanding. Diluted income or loss per share attributable to common shareholders is computed as (1) basic income or loss attributable to common shareholders (2) plus diluted adjustments to income allocable to participating securities (3) divided by weighted average diluted shares outstanding. The following tables set forth a reconciliation of income or loss attributable to common shareholders to basic income or loss attributable to common shareholders to diluted income or loss attributable to common shareholders (in thousands except per share amounts):

		Three Months Ended June 30,						Six Months Ended June 30,
		2016			2015			2016			2015
Net loss, as reported	$	(224,936	)	$	(118,594	)	$	(316,646	)	$	(90,910	)
Participating earnings ^(a)		(56	)		(111	)		(111	)		(224	)
Basic net loss attributed to common shareholders		(224,992	)		(118,705	)		(316,757	)		(91,134	)
Reallocation of participating earnings ^(a)		¾			¾			¾			¾
Diluted net loss attributed to common shareholders	$	(224,992	)	$	(118,705	)	$	(316,757	)	$	(91,134	)
Net loss per common share:
Basic	$	(1.35	)	$	(0.71	)	$	(1.90	)	$	(0.55	)
Diluted	$	(1.35	)	$	(0.71	)	$	(1.90	)	$	(0.55	)

^(a)

Restricted Stock Awards represent participating securities because they participate in nonforfeitable dividends or distributions with common equity owners. Income allocable to participating securities represents the distributed and undistributed earnings attributable to the participating securities. Participating securities, however, do not participate in undistributed net losses.

The following table provides a reconciliation of basic weighted average common shares outstanding to diluted weighted average common shares outstanding (in thousands):

	Three Months Ended June 30,		Six Months Ended June 30,
	2016	2015	2016	2015
Weighted average common shares outstanding – basic	167,126	166,421	166,964	166,230
Effect of dilutive securities:
Director and employee SARs	¾	¾	¾	¾
Weighted average common shares outstanding – diluted	167,126	166,421	166,964	166,230

Weighted average common shares outstanding-basic for both the three months ended June 30, 2016 and the three months ended June 30, 2015 excludes 2.8 million shares of restricted stock held in our deferred compensation plan (although all awards are issued and outstanding upon grant). Weighted average common shares outstanding-basic for both the six months ended June 30, 2016 and the six months ended June 31, 2015 also exclude 2.8 million shares of restricted stock held in our deferred compensation plan. Due to our net loss from operations for the three months and six months ended June 30, 2016 and 2015, we excluded all outstanding stock appreciation rights (“SARs”) and restricted stock from the computation of diluted net loss per share because the effect would have been anti-dilutive.

Suspended Exploratory Well Costs

6 Months Ended

Jun. 30, 2016

Suspended Exploratory Well Costs

(7) SUSPENDED EXPLORATORY WELL COSTS

We capitalize exploratory well costs until a determination is made that the well has either found proved reserves or that it is impaired. Capitalized exploratory well costs are included in natural gas and oil properties in the accompanying consolidated balance sheets. If an exploratory well is determined to be impaired, the well costs are charged to exploration expense in the accompanying consolidated statements of operations. We did not have any exploratory well costs that have been capitalized for a period greater than one year as of June 30, 2016. The following table reflects the change in capitalized exploratory well costs for the six months ended June 30, 2016 and the year ended December 31, 2015 (in thousands):

		June 30, 2016			December 31, 2015
Balance at beginning of period	$	4,161		$	2,996
Additions to capitalized exploratory well costs pending the determination of proved reserves		1,556			1,165
Reclassifications to wells, facilities and equipment based on determination of proved reserves		(5,717	)		¾
Divested wells		¾			¾
Balance at end of period		¾			4,161
Less exploratory well costs that have been capitalized for a period of one year or less		¾			(1,165	)
Capitalized exploratory well costs that have been capitalized for a period greater than one year	$	¾		$	2,996
Number of projects that have exploration well costs that have been capitalized greater than one year		¾			1

Indebtedness

6 Months Ended

Jun. 30, 2016

Debt Disclosure [Abstract]

Indebtedness

(8) INDEBTEDNESS

We had the following debt outstanding as of the dates shown below which are net of debt issuance costs (bank debt interest rate at June 30, 2016 is shown parenthetically) (in thousands). No interest was capitalized during the three or six months ended June 30, 2016 or the year ended December 31, 2015.

	June 30,		December 31,
	2016		2015
Bank debt (3.8%), net of unamortized debt issuance costs of $3,000 and $8,573 ^(a)	$	—	$	86,427
Senior notes:
4.875% senior notes due 2025, net of unamortized debt issuance costs of $11,384 and $11,899		738,616		738,101
Senior subordinated notes:
5.75% senior subordinated notes due 2021, net of unamortized debt issuance costs of $5,435 and $5,905		494,565		494,095
5.00% senior subordinated notes due 2022, net of unamortized debt issuance costs of $7,234 and $7,777		592,766		592,223
5.00% senior subordinated notes due 2023, net of unamortized debt issuance costs of $8,986 and $9,543		741,014		740,457
Total debt	$	2,566,961	$	2,651,303

^(a) As of June 30, 2016, there were unamortized debt issuance costs of $4.1 million which exceeded our credit facility balance which were reclassified to other assets on our consolidated balance sheet.

Bank Debt

In October 2014, we entered into an amended and restated revolving bank facility, which we refer to as our bank debt or our bank credit facility, which is secured by substantially all of our assets and has a maturity date of October 16, 2019. The bank credit facility provides for a maximum facility amount of $4.0 billion. The bank credit facility provides for a borrowing base subject to redeterminations annually by May and for event-driven unscheduled redeterminations. As part of our annual redetermination completed on March 17, 2016, our borrowing base was reaffirmed at $3.0 billion and our bank commitment was also reaffirmed at $2.0 billion. As of June 30, 2016, our bank group was composed of twenty-nine financial institutions with no one bank holding more than 5.8% of the total facility. The borrowing base may be increased or decreased based on our request and sufficient proved reserves, as determined by the bank group. The commitment amount may be increased to the borrowing base, subject to payment of a mutually acceptable commitment fee to those banks agreeing to participate in the facility increase. As of June 30, 2016, the outstanding balance under our bank credit facility was $3.0 million, before deducting debt issuance costs. Additionally, we had $232.1 million of undrawn letters of credit leaving $1.8 billion of committed borrowing capacity available under the facility. During a non-investment grade period, borrowings under the bank credit facility can either be at the alternate base rate (“ABR,” as defined in the bank credit facility agreement) plus a spread ranging from 0.25% to 1.25% or LIBOR borrowings at the LIBOR Rate (as defined in the bank credit facility agreement) plus a spread ranging from 1.25% to 2.25%. The applicable spread is dependent upon borrowings relative to the borrowing base. We may elect, from time to time, to convert all or any part of our LIBOR loans to base rate loans or to convert all or any of the base rate loans to LIBOR loans. The weighted average interest rate was 2.8% for the three months ended June 30, 2016 compared to 1.7% for the three months ended June 30, 2015. The weighted average interest rate was 2.4% for the six months ended June 30, 2016 compared to 1.7% for the six months ended June 30, 2015. A commitment fee is paid on the undrawn balance based on an annual rate of 0.30% to 0.375%. At June 30, 2016, the commitment fee was 0.30% and the interest rate margin was 1.25% on our LIBOR loans and 0.25% on our base rate loans.

At any time during which we have an investment grade debt rating from Moody’s Investors Service, Inc. or Standard & Poor’s Ratings Services and we have elected, at our discretion, to effect the investment grade rating period, certain collateral security requirements, including the borrowing base requirement and restrictive covenants, will cease to apply and an additional financial covenant (as defined in the bank credit facility) will be imposed. During the investment grade period, borrowings under the credit facility can either be at the ABR plus a spread ranging from 0.125% to 0.75% or at the LIBOR Rate plus a spread ranging from 1.125% to 1.75% depending on our debt rating. The commitment fee paid on the undrawn balance would range from 0.15% to 0.30%. We currently do not have an investment grade debt rating.

Senior Notes

In May 2015, we issued $750.0 million aggregate principal amount of 4.875% senior notes due 2025 (the “Outstanding Notes”) for net proceeds of $737.4 million after underwriting discounts and commissions of $12.6 million. The notes were issued at par and were offered to qualified institutional buyers and non-U.S. persons outside the United States in compliance with Rule 144A and Regulation S under the Securities Act of 1933, as amended (the “Securities Act”). On April 8, 2016, all of the Outstanding Notes were exchanged for an equal principal amount of registered 4.875% senior notes due 2025 pursuant to an effective registration statement on Form S-4 filed with the SEC on February 29, 2016 under the Securities Act (the “Exchange Notes”). The Exchange Notes are identical to the Outstanding Notes except the Exchange Notes are registered under the Securities Act and do not have restrictions on transfer, registration rights or provisions for additional interest. Under certain circumstances, if we experience a change of control, noteholders may require us to repurchase all of our senior notes at 101% of the aggregate principal amount plus accrued and unpaid interest, if any.

Senior Subordinated Notes

If we experience a change of control, noteholders may require us to repurchase all or a portion of our senior subordinated notes at 101% of the aggregate principal amount plus accrued and unpaid interest, if any. All of the senior subordinated notes and the guarantees by our subsidiary guarantors are general, unsecured obligations and are subordinated to our bank debt and will be subordinated to existing and future senior debt that we or our subsidiary guarantors are permitted to incur under the bank credit facility and the indentures governing the subordinated notes.

Guarantees

Range is a holding company which owns no operating assets and has no significant operations independent of its subsidiaries. The guarantees by our subsidiaries, which are directly or indirectly owned by Range, of our senior notes, senior subordinated notes and our bank credit facility are full and unconditional and joint and several, subject to certain customary release provisions. A subsidiary guarantor may be released from its obligations under the guarantee:

—

in the event of a sale or other disposition of all or substantially all of the assets of the subsidiary guarantor or a sale or other disposition of all the capital stock of the subsidiary guarantor, to any corporation or other person (including an unrestricted subsidiary of Range) by way of merger, consolidation, or otherwise; or

—

if Range designates any restricted subsidiary that is a guarantor to be an unrestricted subsidiary in accordance with the terms of the indenture.

Debt Covenants

Our bank credit facility contains negative covenants that limit our ability, among other things, to pay cash dividends, incur additional indebtedness, sell assets, enter into certain hedging contracts, change the nature of our business or operations, merge, consolidate, or make certain investments. In addition, we are required to maintain a ratio of EBITDAX (as defined in the bank credit facility agreement) to cash interest expense of equal to or greater than 2.5 and a current ratio (as defined in the bank credit facility agreement) of no less than 1.0. In addition, the ratio of the present value of proved reserves (as defined in the credit agreement) to total debt must be equal to or greater than 1.5 until Range has two investment grade ratings. We were in compliance with applicable covenants under the bank credit facility at June 30, 2016.

The indentures governing our senior subordinated notes contain various restrictive covenants that are substantially identical to each other and may limit our ability to, among other things, pay cash dividends, incur additional indebtedness, sell assets, enter into transactions with affiliates, or change the nature of our business. At June 30, 2016, we were in compliance with these covenants. Our senior subordinated notes also include a limitation on the amount of credit facility debt we can incur. Certain thresholds, as set forth in the indenture debt incurrence test, may limit our ability to incur debt under our bank credit facility in excess of a $1.5 billion floor amount based on levels of commodity prices of natural gas, NGLs and crude oil used in the annual calculation of discounted future cash flows relating to proved oil and gas reserves (as further defined in the indenture). Based on our current discounted future net cash flows, our bank credit facility usage is limited to $1.5 billion until higher prices or proved reserve additions increase discounted future net cash flows.

Asset Retirement Obligations

6 Months Ended

Jun. 30, 2016

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

(9) ASSET RETIREMENT OBLIGATIONS

Our asset retirement obligations primarily represent the estimated present value of the amounts we will incur to plug, abandon and remediate our producing properties at the end of their productive lives. Significant inputs used in determining such obligations include estimates of plugging and abandonment costs, estimated future inflation rates and well lives. The inputs are calculated based on historical data as well as current estimated costs. A reconciliation of our liability for plugging and abandonment costs for the six months ended June 30, 2016 is as follows (in thousands):

	Six Months Ended June 30, 2016
Beginning of period	$	264,137
Liabilities incurred		921
Liabilities settled		(5,700	)
Disposition of wells		(4,731	)
Accretion expense		8,172
Change in estimate		2,819
End of period		265,618
Less current portion		(15,071	)
Long-term asset retirement obligations	$	250,547

Accretion expense is recognized as a component of depreciation, depletion and amortization expense in the accompanying consolidated statements of operations.

Capital Stock

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Capital Stock

(10) CAPITAL STOCK

We have authorized capital stock of 485.0 million shares which includes 475.0 million shares of common stock and 10.0 million shares of preferred stock. We currently have no preferred stock issued or outstanding. The following is a schedule of changes in the number of common shares outstanding since the beginning of 2015:

	Six Months Ended June 30, 2016		Year Ended December 31, 2015
Beginning balance		169,316,460		168,628,177
SARs exercised		—		77,002
Restricted stock grants		459,099		335,103
Restricted stock units vested		246,564		252,507
Treasury shares issued		13,772		23,671
Ending balance		170,035,895		169,316,460

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivative Activities

6 Months Ended

Jun. 30, 2016

Derivative Activities

(11) DERIVATIVE ACTIVITIES

We use commodity-based derivative contracts to manage exposure to commodity price fluctuations. We do not enter into these arrangements for speculative or trading purposes. We do not utilize complex derivatives, as we typically utilize commodity swaps or collars to (1) reduce the effect of price volatility of the commodities we produce and sell and (2) support our annual capital budget and expenditure plans. The fair value of our derivative contracts, represented by the estimated amount that would be realized upon termination, based on a comparison of the contract price and a reference price, generally the New York Mercantile Exchange (“NYMEX”) for natural gas and crude oil or Mont Belvieu for NGLs, approximated a net asset of $4.1 million at June 30, 2016. These contracts expire monthly through December 2018. The following table sets forth our commodity-based derivative volumes by year as of June 30, 2016, excluding our basis and freight swaps which are discussed separately below:

Period	Contract Type	Volume Hedged	Weighted Average Hedge Price
Natural Gas
2016	Swaps	788,315 Mmbtu/day	$ 3.22
2017	Swaps	300,000 Mmbtu/day	$ 2.91
2018	Swaps	70,000 Mmbtu/day	$ 2.92

Crude Oil
2016	Swaps	6,000 bbls/day	$ 58.40
2017	Swaps	2,496 bbls/day	$ 51.29

NGLs (C2-Ethane)
2016	Swaps	500 bbls/day	$ 0.22/gallon
2017	Swaps	3,000 bbls/day	$ 0.27/gallon

NGLs (C3-Propane)
2016	Swaps	5,500 bbls/day	$ 0.60/gallon
2017	Swaps	3,966 bbls/day	$ 0.53/gallon

NGLs (NC4-Normal Butane)
2016	Swaps	4,750 bbls/day	$ 0.66/gallon
2017	Swaps	500 bbls/day	$ 0.61/gallon

NGLs (C5-Natural Gasoline)
2016	Swaps	3,500 bbls/day	$ 1.11/gallon
2017	Swaps	1,750 bbls/day	$ 0.97/gallon

Every derivative instrument is required to be recorded on the balance sheet as either an asset or a liability measured at its fair value. If the derivative does not qualify as a hedge or is not designated as a hedge, changes in fair value of these non-hedge derivatives are recognized in earnings as derivative fair value income or loss.

Basis Swap Contracts

In addition to the swaps above, at June 30, 2016, we had natural gas basis swap contracts which lock in the differential between NYMEX and certain of our physical pricing indices primarily in Appalachia. These contracts settle monthly through December 2017 and include a total volume of 64,125,000 Mmbtu. The fair value of these contracts was a loss of $3.8 million on June 30, 2016.

At June 30, 2016, we also had propane spread swap contracts which lock in the differential between Mont Belvieu and international propane indices. The contracts settle monthly through December 2017 and include a total volume of 1,162,500 barrels in 2016 and 1,650,000 barrels in 2017. The fair value of these contracts was a gain of $4.0 million on June 30, 2016.

Freight Swap Contracts

In connection with our international propane spread swaps, at June 30, 2016, we had freight swap contracts which lock in the freight rate for a specific trade route on the Baltic Exchange. These contracts settle monthly in fourth quarter 2016 and cover 5,000 metric tons per month with a fair value loss of $34,000 on June 30, 2016. These contracts use observable third-party pricing inputs that we consider to be a level 2 fair value classification.

Derivative Assets and Liabilities

The combined fair value of derivatives included in the accompanying consolidated balance sheets as of June 30, 2016 and December 31, 2015 is summarized below. The assets and liabilities are netted where derivatives with both gain and loss positions are held by a single counterparty and we have master netting arrangements. The tables below provide additional information relating to our master netting arrangements with our derivative counterparties (in thousands):

		June 30, 2016
		Gross Amounts of Recognized Assets		Gross Amounts Offset in the Balance Sheet			Net Amounts of Assets Presented in the Balance Sheet
Derivative assets:
Natural gas	–swaps	$	48,702	$	(14,875	)	$	33,827
	–basis swaps		3,621		(6,942	)		(3,321	)
Crude oil	–swaps		12,472		(5,312	)		7,160
NGLs	–C2 ethane swaps		51		(201	)		(150	)
	–C3 propane swaps		1,999		(1,391	)		608
	–C3 propane spread swaps		11,964		(8,394	)		3,570
	–NC4 butane swaps		522		(86	)		436
	–C5 natural gasoline swaps		4,281		(2,314	)		1,967
Freight	–swaps		¾		(34	)		(34	)
		$	83,612	$	(39,549	)	$	44,063

		June 30, 2016
		Gross Amounts of Recognized (Liabilities)			Gross Amounts Offset in the Balance Sheet		Net Amounts of (Liabilities) Presented in the Balance Sheet
Derivative (liabilities):
Natural gas	–swaps	$	(50,780	)	$	14,875	$	(35,905	)
	–basis swaps		(7,446	)		6,942		(504	)
Crude oil	–swaps		(4,108	)		5,312		1,204
NGLs	–C2 ethane swaps		(1,252	)		201		(1,051	)
	–C3 propane swaps		(2,101	)		1,391		(710	)
	–C3 propane spread swaps		(7,988	)		8,394		406
	–NC4 butane swaps		(2,567	)		86		(2,481	)
	–C5 natural gasoline swaps		(3,165	)		2,314		(851	)
Freight	–swaps		(34	)		34		¾
		$	(79,441	)	$	39,549	$	(39,892	)

		December 31, 2015
		Gross Amounts of Recognized Assets		Gross Amounts Offset in the Balance Sheet			Net Amounts of Assets Presented in the Balance Sheet
Derivative assets:
Natural gas	–swaps	$	219,357	$	(10,245	)	$	209,112
	–basis swaps		8,251		(2,765	)		5,486
Crude oil	–swaps		38,699		¾			38,699
NGLs	–C3 propane swaps		15,884		¾			15,884
	–C3 propane spread swaps		2,497		(2,497	)		¾
	–NC4 butane swaps		6,968		¾			6,968
	–C5 natural gasoline swaps		12,694		(81	)		12,613
		$	304,350	$	(15,588	)	$	288,762

		December 31, 2015
		Gross Amounts of Recognized (Liabilities)			Gross Amounts Offset in the Balance Sheet		Net Amounts of (Liabilities) Presented in the Balance Sheet
Derivative (liabilities):
Natural gas	–swaps	$	(10,245	)	$	10,245	$	¾
	–basis swaps		(2,786	)		2,765		(21	)
NGLs	–C3 propane spread swap		(3,633	)		2,497		(1,136	)
	–C5 natural gasoline swaps		(81	)		81		¾
		$	(16,745	)	$	15,588	$	(1,157	)

The effects of our derivatives on our consolidated statements of operations are summarized below (in thousands):


		Three Months Ended June 30,
		Derivative Fair Value Income (Loss)
		2016			2015
Commodity swaps	$	(158,576	)	$	(42,100	)
Collars		¾			(1,650	)
Basis swaps		(4,199	)		8,959
Freight swaps		(23	)		¾
Total	$	(162,798	)	$	(34,791	)


		Six Months Ended June 30,
		Derivative Fair Value Income (Loss)
		2016			2015
Commodity swaps	$	(78,931	)	$	83,676
Collars		¾			6,765
Basis swaps		3,075			(2,393	)
Freight swaps		(34	)		¾
Total	$	(75,890	)	$	88,048

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

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-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(n))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Fair Value Measurements

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurements

(12) FAIR VALUE MEASUREMENTS

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. There are three approaches for measuring the fair value of assets and liabilities: the market approach, the income approach and the cost approach, each of which includes multiple valuation techniques. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. The income approach uses valuation techniques to measure fair value by converting future amounts, such as cash flows or earnings, into a single present value amount using current market expectations about those future amounts. The cost approach is based on the amount that would currently be required to replace the service capacity of an asset. This is often referred to as current replacement cost. The cost approach assumes that the fair value would not exceed what it would cost a market participant to acquire or construct a substitute asset of comparable utility, adjusted for obsolescence.

The fair value accounting standards do not prescribe which valuation technique should be used when measuring fair value and do not prioritize among the techniques. These standards establish a fair value hierarchy that prioritizes the inputs used in applying the various valuation techniques. Inputs broadly refer to the assumptions that market participants use to make pricing decisions, including assumptions about risk. Level 1 inputs are given the highest priority in the fair value hierarchy while Level 3 inputs are given the lowest priority. The three levels of the fair value hierarchy are as follows:

—

Level 1 – Observable inputs that reflect unadjusted quoted prices for identical assets or liabilities in active markets as of the reporting date. Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis.

—

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

—

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

Valuation techniques that maximize the use of observable inputs are favored. Assets and liabilities are classified in their entirety based on the lowest priority level of input that is significant to the fair value measurement. The assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the placement of assets and liabilities within the levels of the fair value hierarchy.

Fair Values – Recurring

We use a market approach for our recurring fair value measurements and endeavor to use the best information available. The following tables present the fair value hierarchy table for assets and liabilities measured at fair value, on a recurring basis (in thousands):

	Fair Value Measurements at June 30, 2016 using:
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Carrying Value as of June 30, 2016
Trading securities held in the deferred compensation plans	$	62,194	$	—		$	—	$	62,194
Derivatives –swaps		—		4,054			—		4,054
–basis swaps		—		151			—		151
–freight swaps		—		(34	)		—		(34	)

	Fair Value Measurements at December 31, 2015 using:
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Carrying Value as of December 31, 2015
Trading securities held in the deferred compensation plans	$	62,376	$	—	$	—	$	62,376
Derivatives –swaps		—		283,276		—		283,276
–basis swaps		—		4,329		—		4,329

Our trading securities in Level 1 are exchange-traded and measured at fair value with a market approach using end of period market values. Derivatives in Level 2 are measured at fair value with a market approach using third-party pricing services, which have been corroborated with data from active markets or broker quotes.

Our trading securities held in the deferred compensation plan are accounted for using the mark-to-market accounting method and are included in other assets in the accompanying consolidated balance sheets. We elected to adopt the fair value option to simplify our accounting for the investments in our deferred compensation plan. Interest, dividends, and mark-to-market gains or losses are included in deferred compensation plan expense in the accompanying consolidated statements of operations. For second quarter 2016, interest and dividends were $181,000 and the mark-to-market adjustment was a gain of $1.2 million compared to interest and dividends of $139,000 and a mark-to-market loss of $576,000 in second quarter 2015. For the six months ended June 30, 2016, interest and dividends were $317,000 and the mark-to-market gain was $1.4 million compared to interest and dividends of $248,000 and mark-to-market adjustment of a gain of $832,000 in the same period of 2015.

Fair Values—Non-recurring

Our proved natural gas and oil properties are reviewed for impairment periodically as events or changes in circumstances indicate the carrying amount may not be recoverable. In the six months ended June 30, 2016, due to declines in commodity prices, there were indicators that the carrying value of certain of our oil and gas properties may be impaired and undiscounted future cash flows attributed to these assets indicated their carrying amounts were not expected to be recovered. Their remaining fair value was measured using an income approach based upon internal estimates of future production levels, prices, drilling and operating costs and discount rates, which are Level 3 measurements. We also considered the potential sale of certain of these properties. We recorded non-cash impairment charges during the six months ended June 30, 2016 of $43.0 million related to our natural gas and oil properties in Western Oklahoma. Our estimates of future cash flows attributable to our natural gas and oil properties could decline further with commodity prices which may result in additional impairment charges. The following table presents the value of these assets measured at fair value on a non-recurring basis at the time impairment was recorded (in thousands):

	Six Months Ended June 30,
	2016				2015
		Fair Value		Impairment		Fair Value		Impairment
Natural gas and oil properties	$	90,150	$	43,040	$	¾	$	¾

Fair Values—Reported

The following table presents the carrying amounts and the fair values of our financial instruments as of June 30, 2016 and December 31, 2015 (in thousands):

	June 30, 2016						December 31, 2015
	Carrying Value			Fair Value			Carrying Value			Fair Value
Assets:
Commodity swaps and basis swaps	$	44,063		$	44,063		$	288,762		$	288,762
Marketable securities ^(a)		62,194			62,194			62,376			62,376
(Liabilities):
Commodity swaps and basis swaps		(39,892	)		(39,892	)		(1,157	)		(1,157	)
Bank credit facility ^(b)		(3,000	)		(3,000	)		(95,000	)		(95,000	)
Deferred compensation plan ^(c)		(158,669	)		(158,669	)		(122,918	)		(122,918	)
4.875% senior notes due 2025 ^(b)		(750,000	)		(713,438	)		(750,000	)		(572,813	)
5.75% senior subordinated notes due 2021 ^(b)		(500,000	)		(488,750	)		(500,000	)		(396,250	)
5.00% senior subordinated notes due 2022 ^(b)		(600,000	)		(562,500	)		(600,000	)		(447,000	)
5.00% senior subordinated notes due 2023 ^(b)		(750,000	)		(704,063	)		(750,000	)		(551,250	)

^(a)	Marketable securities, which are held in our deferred compensation plans, are actively traded on major exchanges.

^(b)	The book value of our bank debt approximates fair value because of its floating rate structure. The fair value of our senior notes and our senior subordinated notes is based on end of period market quotes which are Level 2 inputs.

^(c)	The fair value of our deferred compensation plan is updated at the closing price on the balance sheet date which is a Level 1 input.

Our current assets and liabilities contain financial instruments, the most significant of which are trade accounts receivable and payable. We believe the carrying values of our current assets and liabilities approximate fair value. Our fair value assessment incorporates a variety of considerations, including (1) the short-term duration of the instruments and (2) our historical and expected incurrence of bad debt expense. Non-financial liabilities initially measured at fair value include asset retirement obligations. For additional information, see Note 10.

Concentrations of Credit Risk

As of June 30, 2016, our primary concentrations of credit risk are the risks of not collecting accounts receivable and the risk of a counterparty’s failure to perform under derivative obligations. Most of our receivables are from a diverse group of companies, including major energy companies, pipeline companies, local distribution companies, financial institutions and end-users in various industries. Letters of credit or other appropriate security are obtained as deemed necessary to limit our risk of loss. Our allowance for uncollectable receivables was $4.7 million at June 30, 2016 and $5.0 million at December 31, 2015. As of June 30, 2016, our derivative contracts consist of swaps. Our derivative exposure to credit risk is diversified primarily among major investment grade financial institutions, where we have master netting agreements which provide for offsetting payables against receivables from separate derivative contracts. To manage counterparty risk associated with our derivatives, we select and monitor our counterparties based on our assessment of their financial strength and/or credit ratings. We may also limit the level of exposure with any single counterparty. At June 30, 2016, our derivative counterparties include twenty-one financial institutions, of which all but five are secured lenders in our bank credit facility. At June 30, 2016, our net derivative assets include a net receivable from these five counterparties that are not included in our bank credit facility of $1.9 million.

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Stock-Based Compensation Plans

6 Months Ended

Jun. 30, 2016

Stock-Based Compensation Plans

(13) STOCK-BASED COMPENSATION PLANS

Stock-Based Awards

We have one active equity-based stock plan, our Amended and Restated 2005 Equity-Based Incentive Compensation Plan, which we refer to as the 2005 Plan. Under this plan, incentive and non-qualified stock options, SARs, and various other awards may be issued to non-employee directors and employees pursuant to decisions of the Compensation Committee, which is comprised of only non-employee, independent directors. In 2005, we began granting SARs which represent the right to receive a payment equal to the excess of the fair market value of shares of our common stock on the date the right is exercised over the value of the stock on the date of grant. All SARs granted under the 2005 Plan will be settled in shares of stock, vest over a three-year period and have a maximum term of five years from the date they are granted. In 2011, the Compensation Committee of the Board of Directors began granting restricted stock units under our equity-based stock compensation plans. These restricted stock units, which we refer to as restricted stock Equity Awards, vest over a three-year period. All awards granted have been issued at prevailing market prices at the time of grant and the vesting of these shares is based upon an employee’s continued employment with us, with the exception of employment termination due to death, disability or retirement.

In first quarter 2014, the Compensation Committee began granting performance share unit (“PSU”) awards under our 2005 Plan. The number of shares to be issued is determined by our total shareholder return compared to the total shareholder return of a predetermined group of peer companies over the performance period. The grant date fair value of the PSU awards is determined using a Monte Carlo simulation and is recognized as stock-based compensation expense over the three-year performance period. The actual payout of shares granted depends on our total shareholder return compared to our peer companies and will be between zero and 150%.

The Compensation Committee also grants restricted stock to certain employees and non-employee directors of the Board of Directors as part of their compensation. Upon grant of these restricted shares, which we refer to as restricted stock Liability Awards, the shares generally are placed in our deferred compensation plan and, upon vesting, employees are allowed to take withdrawals either in cash or in stock based on their distribution elections. Compensation expense is recognized over the vesting period, which is typically three years for employee grants and immediate vesting for non-employee directors. All restricted stock awards are issued at prevailing market prices at the time of the grant and vesting is based upon an employee’s continued employment with us, with the exception of employment termination due to death, disability or retirement. Prior to vesting, all restricted stock awards have the right to vote such shares and receive dividends thereon. These Liability Awards are classified as a liability and are remeasured at fair value each reporting period. This mark-to-market adjustment is reported as deferred compensation plan expense in the accompanying consolidated statements of operations.

Total Stock-Based Compensation Expense

Stock-based compensation represents amortization of restricted stock, PSUs and SARs expense. Unlike the other forms of stock-based compensation, the mark-to-market adjustment of the liability related to the vested restricted stock held in our deferred compensation plan is directly tied to the change in our stock price and not directly related to the functional expenses and therefore, is not allocated to the functional categories. The following table details the allocation of stock-based compensation to functional expense categories (in thousands):

		Three Months Ended June 30,				Six Months Ended June 30,
		2016		2015		2016		2015
Direct operating expense	$	696	$	654	$	1,284	$	1,540
Brokered natural gas and marketing expense		378		619		894		1,125
Exploration expense		371		751		1,061		1,483
General and administrative expense		15,443		15,953		26,556		27,033
Termination costs		¾		434		¾		1,721
Total stock-based compensation	$	16,888	$	18,411	$	29,795	$	32,902

Performance Share Unit Awards

The following is a summary of our non-vested PSU awards outstanding at June 30, 2016:

	Number of Units			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2015		262,124		$	64.77
Units granted ^(a)		413,959			36.64
Units vested		(113,041	)		52.88
Units forfeited		(42,603	)		46.09
Outstanding at June 30, 2016		520,439		$	46.51

^(a) Amounts granted reflect the number of performance units granted; however, the actual payout of shares will be between zero percent and 150% of the performance units granted depending on the total shareholder return ranking compared to the peer companies at the end of the three-year performance period.

The following assumptions were used to estimate the fair value of PSUs granted during first six months 2016 and 2015:

		Six Months Ended June 30,
		2016			2015
Risk-free interest rate		0.94	%		1.0	%
Expected annual volatility		49	%		33	%
Weighted average grant date fair value per unit	$	36.64		$	56.78

We recorded PSU compensation expense of $5.6 million in first six months 2016 compared to $4.1 million in the same period of 2015.

Restricted Stock Awards

Equity Awards

In first six months 2016, we granted 940,000 restricted stock Equity Awards to employees at an average grant price of $28.18 compared to 583,000 restricted stock Equity Awards granted to employees at an average grant price of $52.45 in first six months 2015. These awards generally vest over a three-year period. We recorded compensation expense for these Equity Awards of $11.5 million in first six months 2016 compared to $14.0 million in the same period of 2015. Equity Awards are not issued to employees until they are vested. Employees do not have the option to receive cash.

Liability Awards

In first six months 2016, we granted 456,000 shares of restricted stock Liability Awards as compensation to employees at an average price of $35.70 with vesting over a three-year period and 52,000 shares were granted to non-employee directors at an average price of $38.73 with immediate vesting. In first six months 2015, we granted 294,000 shares of Liability Awards as compensation to employees at an average price of $56.20 with vesting over a three-year period and 39,000 shares were granted to non-employee directors at an average price of $58.35 with immediate vesting. We recorded compensation expense for Liability Awards of $11.3 million in first six months 2016 compared to $11.7 million in the same period of 2015. Substantially all of these awards are held in our deferred compensation plan, are classified as a liability and are remeasured at fair value at the end of each reporting period. This mark-to-market adjustment is reported as deferred compensation expense in our consolidated statements of operations (see additional discussion below). The following is a summary of the status of our non-vested restricted stock outstanding at June 30, 2016:

	Equity Awards					Liability Awards
	Shares			Weighted Average Grant Date Fair Value		Shares			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2015		436,764		$	59.74		308,737		$	65.80
Granted		940,491			28.18		508,206			36.01
Vested		(255,270	)		45.79		(214,406	)		52.91
Forfeited		(106,120	)		43.45		(49,519	)		40.33
Outstanding at June 30, 2016		1,015,865		$	35.73		553,018		$	45.70

Stock Appreciation Right Awards

There were 1.0 million SARs outstanding at June 30, 2016. Information with respect to SARs activity in the six months ended June 30, 2016 is summarized below:

	Shares			Weighted Average Exercise Price
Outstanding at December 31, 2015		1,510,977		$	63.73
Exercised		—			—
Expired/forfeited		(507,377	)		53.16
Outstanding at June 30, 2016		1,003,600		$	69.08

Deferred Compensation Plan

Our deferred compensation plan gives non-employee directors and officers the ability to defer all or a portion of their salaries, bonuses or director fees and invest in Range common stock or make other investments at the individual’s discretion. Range provides a partial matching contribution to officers which vests over three years. The assets of the plan are held in a grantor trust, which we refer to as the Rabbi Trust, and are therefore available to satisfy the claims of our general creditors in the event of bankruptcy or insolvency. Our stock held in the Rabbi Trust is treated as a liability award as employees are allowed to take withdrawals from the Rabbi Trust either in cash or in Range stock. The liability for the vested portion of the stock held in the Rabbi Trust is reflected as deferred compensation liability in the accompanying consolidated balance sheets and is adjusted to fair value each reporting period by a charge or credit to deferred compensation plan expense on our consolidated statements of operations. The assets of the Rabbi Trust, other than our common stock, are invested in marketable securities and reported at their market value as other assets in the accompanying consolidated balance sheets. The deferred compensation liability reflects the vested market value of the marketable securities and Range stock held in the Rabbi Trust. Changes in the market value of the marketable securities and changes in the fair value of the deferred compensation plan liability are charged or credited to deferred compensation plan expense each quarter. We recorded mark-to-market loss of $25.7 million in second quarter 2016 compared to mark-to-market gain of $7.3 million in second quarter 2015. We recorded a mark-to-market loss of $41.8 million in first six months 2016 compared to a gain of $12.9 million in first six months 2015. The Rabbi Trust held 2.8 million shares (2.3 million of which were vested) of Range stock at June 30, 2016 compared to 2.8 million shares (2.5 million of which were vested) at December 31, 2015.

Supplemental Cash Flow Elements [Abstract]

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

Supplemental Cash Flow Information

6 Months Ended

Jun. 30, 2016

Supplemental Cash Flow Information

(14) SUPPLEMENTAL CASH FLOW INFORMATION

	Six Months Ended June 30,
	2016			2015
	(in thousands)
Net cash provided from operating activities included:
Income taxes refunded from taxing authorities	$	(101	)	$	—
Interest paid		69,991			73,189
Non-cash investing and financing activities included:
Increase in asset retirement costs capitalized		3,740			18,684
Decrease in accrued capital expenditures		(4,741)			(156,897	)

Commitments and Contingencies

6 Months Ended

Jun. 30, 2016

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

(15) COMMITMENTS AND CONTINGENCIES

Litigation

We are the subject of, or party to, a number of pending or threatened legal actions, administrative proceedings and claims arising in the ordinary course of our business. While many of these matters involve inherent uncertainty, we believe that the amount of the liability, if any, ultimately incurred with respect to these actions, proceedings or claims will not have a material adverse effect on our consolidated financial position as a whole or on our liquidity, capital resources or future annual results of operations. We estimate and provide for potential losses that may arise out of litigation and regulatory proceedings to the extent that such losses are probable and can be reasonably estimated. We will continue to evaluate our litigation and regulatory proceedings quarterly and will establish and adjust any estimated liability as appropriate to reflect our assessment of the then current status of litigation and regulatory proceedings. Significant judgment is required in making these estimates and our final liabilities may ultimately be materially different.

Transportation and Gathering Contracts

In first six months 2016, our transportation and gathering commitments increased by approximately $1.5 billion over the next sixteen years primarily due to firm transportation contracts for both ethane and propane in connection with the start-up of the Mariner East pipeline and other pricing changes to current contracts. As of June 30, 2016, the increase to future minimum transportation and gathering fees is as follows (in thousands):

		Transportation and Gathering Contracts
2016	$	47,668
2017		102,729
2018		103,345
2019		103,905
2020		104,627
Thereafter		1,040,075
	$	1,502,349

Delivery Commitments

In first six months 2016, we entered into new agreements with several pipeline companies and end users to deliver natural gas volumes from our production. The new agreements are to deliver from 1,500 to 40,500 Mmbtu per day of natural gas and the commitments are between one and five years and began as early as second quarter 2016.

In the first six months 2016, in connection with the startup of Mariner East, we have contracted to deliver ethane production volumes from our Marcellus Shale wells of 20,000 bbls per day for 15 years.

Office Closing and Termination Costs

6 Months Ended

Jun. 30, 2016

Restructuring And Related Activities [Abstract]

Office Closing and Termination Costs

(16) OFFICE CLOSING AND TERMINATION COSTS

In first quarter 2015, we announced the closing of our Oklahoma City administrative and operational office to reduce our general and administrative expenses, due in part to the impact of lower commodity prices on our operations. In fourth quarter 2014, we initially accrued an estimated $8.4 million of termination costs relating to the closure of this office as it was probable of occurring. In early 2015, those plans and personnel involved were finalized which resulted in additional accruals in 2015 for severance and other personnel costs of $275,000, additional accelerated vesting of stock-based compensation of $608,000 and $3.2 million of building lease costs. The following summarizes our termination costs for the six months ended June 30, 2016 and 2015 (in thousands):

	Six Months Ended June 30,
		2016		2015
Termination costs	$	—	$	1,414
Building lease		167		3,232
Stock-based compensation		—		1,721
Total termination costs	$	167	$	6,367

The following details our accrued liability as of June 30, 2016 (in thousands):

		June 30, 2016
Beginning balance at December 31, 2015	$	11,630
Accrued building rent		167
Payments		(7,901	)
Ending balance at June 30, 2016	$	3,896

Capitalized Costs and Accumulated Depreciation, Depletion and Amortization

6 Months Ended

Jun. 30, 2016

Capitalized Costs and Accumulated Depreciation, Depletion and Amortization

(17) Capitalized Costs and Accumulated Depreciation, Depletion and Amortization ^(a)

	June 30, 2016			December 31, 2015
	(in thousands)
Natural gas and oil properties:
Properties subject to depletion	$	8,074,869		$	8,047,181
Unproved properties		930,142			949,155
Total		9,005,011			8,996,336
Accumulated depreciation, depletion and amortization		(2,864,358	)		(2,635,031	)
Net capitalized costs	$	6,140,653		$	6,361,305

^(a)	Includes capitalized asset retirement costs and the associated accumulated amortization.

Costs Incurred for Property Acquisition, Exploration and Development

6 Months Ended

Jun. 30, 2016

Costs Incurred for Property Acquisition, Exploration and Development

(18) Costs Incurred for Property Acquisition, Exploration and Development ^(a)

	Six Months Ended June 30, 2016		Year Ended December 31, 2015
	(in thousands)
Acreage purchases	$	8,873	$	73,025
Development		219,386		708,268
Exploration:
Drilling		30,914		87,505
Expense		10,637		18,421
Stock-based compensation expense		1,061		2,985
Gas gathering facilities:
Development		1,054		13,337
Subtotal		271,925		903,541
Asset retirement obligations		3,740		22,184
Total costs incurred	$	275,665	$	925,725

^(a)	Includes costs incurred whether capitalized or expensed.

Income Taxes (Tables)

6 Months Ended

Jun. 30, 2016

Income Tax Disclosure [Abstract]

Income Tax Benefit

Income tax benefit was as follows (in thousands):

		Three Months Ended June 30,						Six Months Ended June 30,
		2016			2015			2016			2015
Income tax benefit	$	(129,488	)	$	(61,975	)	$	(173,526	)	$	(39,609	)
Effective tax rate		36.5	%		34.3	%		35.4	%		30.3	%

Loss Per Common Share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Computations of Basic and Diluted Loss Per Common Share

		Three Months Ended June 30,						Six Months Ended June 30,
		2016			2015			2016			2015
Net loss, as reported	$	(224,936	)	$	(118,594	)	$	(316,646	)	$	(90,910	)
Participating earnings ^(a)		(56	)		(111	)		(111	)		(224	)
Basic net loss attributed to common shareholders		(224,992	)		(118,705	)		(316,757	)		(91,134	)
Reallocation of participating earnings ^(a)		¾			¾			¾			¾
Diluted net loss attributed to common shareholders	$	(224,992	)	$	(118,705	)	$	(316,757	)	$	(91,134	)
Net loss per common share:
Basic	$	(1.35	)	$	(0.71	)	$	(1.90	)	$	(0.55	)
Diluted	$	(1.35	)	$	(0.71	)	$	(1.90	)	$	(0.55	)

^(a)

Basic Weighted Average Common Shares Outstanding to Diluted Weighted Average Common Shares Outstanding

The following table provides a reconciliation of basic weighted average common shares outstanding to diluted weighted average common shares outstanding (in thousands):

	Three Months Ended June 30,		Six Months Ended June 30,
	2016	2015	2016	2015
Weighted average common shares outstanding – basic	167,126	166,421	166,964	166,230
Effect of dilutive securities:
Director and employee SARs	¾	¾	¾	¾
Weighted average common shares outstanding – diluted	167,126	166,421	166,964	166,230

Suspended Exploratory Well Costs (Tables)

6 Months Ended

Jun. 30, 2016

Suspended Exploratory Well Costs

The following table reflects the change in capitalized exploratory well costs for the six months ended June 30, 2016 and the year ended December 31, 2015 (in thousands):

		June 30, 2016			December 31, 2015
Balance at beginning of period	$	4,161		$	2,996
Additions to capitalized exploratory well costs pending the determination of proved reserves		1,556			1,165
Reclassifications to wells, facilities and equipment based on determination of proved reserves		(5,717	)		¾
Divested wells		¾			¾
Balance at end of period		¾			4,161
Less exploratory well costs that have been capitalized for a period of one year or less		¾			(1,165	)
Capitalized exploratory well costs that have been capitalized for a period greater than one year	$	¾		$	2,996
Number of projects that have exploration well costs that have been capitalized greater than one year		¾			1

Indebtedness (Tables)

6 Months Ended

Jun. 30, 2016

Debt Disclosure [Abstract]

Debt Outstanding

	June 30,		December 31,
	2016		2015
Bank debt (3.8%), net of unamortized debt issuance costs of $3,000 and $8,573 ^(a)	$	—	$	86,427
Senior notes:
4.875% senior notes due 2025, net of unamortized debt issuance costs of $11,384 and $11,899		738,616		738,101
Senior subordinated notes:
5.75% senior subordinated notes due 2021, net of unamortized debt issuance costs of $5,435 and $5,905		494,565		494,095
5.00% senior subordinated notes due 2022, net of unamortized debt issuance costs of $7,234 and $7,777		592,766		592,223
5.00% senior subordinated notes due 2023, net of unamortized debt issuance costs of $8,986 and $9,543		741,014		740,457
Total debt	$	2,566,961	$	2,651,303

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 30, 2016

Asset Retirement Obligation

A reconciliation of our liability for plugging and abandonment costs for the six months ended June 30, 2016 is as follows (in thousands):

	Six Months Ended June 30, 2016
Beginning of period	$	264,137
Liabilities incurred		921
Liabilities settled		(5,700	)
Disposition of wells		(4,731	)
Accretion expense		8,172
Change in estimate		2,819
End of period		265,618
Less current portion		(15,071	)
Long-term asset retirement obligations	$	250,547

Capital Stock (Tables)

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Capital Stock

The following is a schedule of changes in the number of common shares outstanding since the beginning of 2015:

	Six Months Ended June 30, 2016		Year Ended December 31, 2015
Beginning balance		169,316,460		168,628,177
SARs exercised		—		77,002
Restricted stock grants		459,099		335,103
Restricted stock units vested		246,564		252,507
Treasury shares issued		13,772		23,671
Ending balance		170,035,895		169,316,460

Derivative Activities (Tables)

6 Months Ended

Jun. 30, 2016

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivative Volumes Hedged and Average Hedge Prices

The following table sets forth our commodity-based derivative volumes by year as of June 30, 2016, excluding our basis and freight swaps which are discussed separately below:

Period	Contract Type	Volume Hedged	Weighted Average Hedge Price
Natural Gas
2016	Swaps	788,315 Mmbtu/day	$ 3.22
2017	Swaps	300,000 Mmbtu/day	$ 2.91
2018	Swaps	70,000 Mmbtu/day	$ 2.92

Crude Oil
2016	Swaps	6,000 bbls/day	$ 58.40
2017	Swaps	2,496 bbls/day	$ 51.29

NGLs (C2-Ethane)
2016	Swaps	500 bbls/day	$ 0.22/gallon
2017	Swaps	3,000 bbls/day	$ 0.27/gallon

NGLs (C3-Propane)
2016	Swaps	5,500 bbls/day	$ 0.60/gallon
2017	Swaps	3,966 bbls/day	$ 0.53/gallon

NGLs (NC4-Normal Butane)
2016	Swaps	4,750 bbls/day	$ 0.66/gallon
2017	Swaps	500 bbls/day	$ 0.61/gallon

NGLs (C5-Natural Gasoline)
2016	Swaps	3,500 bbls/day	$ 1.11/gallon
2017	Swaps	1,750 bbls/day	$ 0.97/gallon

Combined Fair Value of Derivatives, by Consolidated Balance Sheets

		June 30, 2016
		Gross Amounts of Recognized Assets		Gross Amounts Offset in the Balance Sheet			Net Amounts of Assets Presented in the Balance Sheet
Derivative assets:
Natural gas	–swaps	$	48,702	$	(14,875	)	$	33,827
	–basis swaps		3,621		(6,942	)		(3,321	)
Crude oil	–swaps		12,472		(5,312	)		7,160
NGLs	–C2 ethane swaps		51		(201	)		(150	)
	–C3 propane swaps		1,999		(1,391	)		608
	–C3 propane spread swaps		11,964		(8,394	)		3,570
	–NC4 butane swaps		522		(86	)		436
	–C5 natural gasoline swaps		4,281		(2,314	)		1,967
Freight	–swaps		¾		(34	)		(34	)
		$	83,612	$	(39,549	)	$	44,063

		June 30, 2016
		Gross Amounts of Recognized (Liabilities)			Gross Amounts Offset in the Balance Sheet		Net Amounts of (Liabilities) Presented in the Balance Sheet
Derivative (liabilities):
Natural gas	–swaps	$	(50,780	)	$	14,875	$	(35,905	)
	–basis swaps		(7,446	)		6,942		(504	)
Crude oil	–swaps		(4,108	)		5,312		1,204
NGLs	–C2 ethane swaps		(1,252	)		201		(1,051	)
	–C3 propane swaps		(2,101	)		1,391		(710	)
	–C3 propane spread swaps		(7,988	)		8,394		406
	–NC4 butane swaps		(2,567	)		86		(2,481	)
	–C5 natural gasoline swaps		(3,165	)		2,314		(851	)
Freight	–swaps		(34	)		34		¾
		$	(79,441	)	$	39,549	$	(39,892	)

		December 31, 2015
		Gross Amounts of Recognized Assets		Gross Amounts Offset in the Balance Sheet			Net Amounts of Assets Presented in the Balance Sheet
Derivative assets:
Natural gas	–swaps	$	219,357	$	(10,245	)	$	209,112
	–basis swaps		8,251		(2,765	)		5,486
Crude oil	–swaps		38,699		¾			38,699
NGLs	–C3 propane swaps		15,884		¾			15,884
	–C3 propane spread swaps		2,497		(2,497	)		¾
	–NC4 butane swaps		6,968		¾			6,968
	–C5 natural gasoline swaps		12,694		(81	)		12,613
		$	304,350	$	(15,588	)	$	288,762

		December 31, 2015
		Gross Amounts of Recognized (Liabilities)			Gross Amounts Offset in the Balance Sheet		Net Amounts of (Liabilities) Presented in the Balance Sheet
Derivative (liabilities):
Natural gas	–swaps	$	(10,245	)	$	10,245	$	¾
	–basis swaps		(2,786	)		2,765		(21	)
NGLs	–C3 propane spread swap		(3,633	)		2,497		(1,136	)
	–C5 natural gasoline swaps		(81	)		81		¾
		$	(16,745	)	$	15,588	$	(1,157	)

Effects of Derivatives on Consolidated Statements of Operations

The effects of our derivatives on our consolidated statements of operations are summarized below (in thousands):


		Three Months Ended June 30,
		Derivative Fair Value Income (Loss)
		2016			2015
Commodity swaps	$	(158,576	)	$	(42,100	)
Collars		¾			(1,650	)
Basis swaps		(4,199	)		8,959
Freight swaps		(23	)		¾
Total	$	(162,798	)	$	(34,791	)


		Six Months Ended June 30,
		Derivative Fair Value Income (Loss)
		2016			2015
Commodity swaps	$	(78,931	)	$	83,676
Collars		¾			6,765
Basis swaps		3,075			(2,393	)
Freight swaps		(34	)		¾
Total	$	(75,890	)	$	88,048

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41641-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41678-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41638-113959

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579240-113959

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41620-113959

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(n)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Fair Value Hierarchy Table for Assets and Liabilities Measured at Fair Value

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

	Fair Value Measurements at June 30, 2016 using:
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Carrying Value as of June 30, 2016
Trading securities held in the deferred compensation plans	$	62,194	$	—		$	—	$	62,194
Derivatives –swaps		—		4,054			—		4,054
–basis swaps		—		151			—		151
–freight swaps		—		(34	)		—		(34	)

	Fair Value Measurements at December 31, 2015 using:
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Carrying Value as of December 31, 2015
Trading securities held in the deferred compensation plans	$	62,376	$	—	$	—	$	62,376
Derivatives –swaps		—		283,276		—		283,276
–basis swaps		—		4,329		—		4,329

Value of Assets Measured at Fair Value on Non Recurring Basis

The following table presents the value of these assets measured at fair value on a non-recurring basis at the time impairment was recorded (in thousands):

	Six Months Ended June 30,
	2016				2015
		Fair Value		Impairment		Fair Value		Impairment
Natural gas and oil properties	$	90,150	$	43,040	$	¾	$	¾

Carrying Amounts and Fair Values of Financial Instruments

The following table presents the carrying amounts and the fair values of our financial instruments as of June 30, 2016 and December 31, 2015 (in thousands):

	June 30, 2016						December 31, 2015
	Carrying Value			Fair Value			Carrying Value			Fair Value
Assets:
Commodity swaps and basis swaps	$	44,063		$	44,063		$	288,762		$	288,762
Marketable securities ^(a)		62,194			62,194			62,376			62,376
(Liabilities):
Commodity swaps and basis swaps		(39,892	)		(39,892	)		(1,157	)		(1,157	)
Bank credit facility ^(b)		(3,000	)		(3,000	)		(95,000	)		(95,000	)
Deferred compensation plan ^(c)		(158,669	)		(158,669	)		(122,918	)		(122,918	)
4.875% senior notes due 2025 ^(b)		(750,000	)		(713,438	)		(750,000	)		(572,813	)
5.75% senior subordinated notes due 2021 ^(b)		(500,000	)		(488,750	)		(500,000	)		(396,250	)
5.00% senior subordinated notes due 2022 ^(b)		(600,000	)		(562,500	)		(600,000	)		(447,000	)
5.00% senior subordinated notes due 2023 ^(b)		(750,000	)		(704,063	)		(750,000	)		(551,250	)

^(a)	Marketable securities, which are held in our deferred compensation plans, are actively traded on major exchanges.

^(b)	The book value of our bank debt approximates fair value because of its floating rate structure. The fair value of our senior notes and our senior subordinated notes is based on end of period market quotes which are Level 2 inputs.

^(c)	The fair value of our deferred compensation plan is updated at the closing price on the balance sheet date which is a Level 1 input.

Stock-Based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Allocation of Stock-Based Compensation by Functional Category

The following table details the allocation of stock-based compensation to functional expense categories (in thousands):

		Three Months Ended June 30,				Six Months Ended June 30,
		2016		2015		2016		2015
Direct operating expense	$	696	$	654	$	1,284	$	1,540
Brokered natural gas and marketing expense		378		619		894		1,125
Exploration expense		371		751		1,061		1,483
General and administrative expense		15,443		15,953		26,556		27,033
Termination costs		¾		434		¾		1,721
Total stock-based compensation	$	16,888	$	18,411	$	29,795	$	32,902

Summary of Performance Share Unit Awards Activities

The following is a summary of our non-vested PSU awards outstanding at June 30, 2016:

	Number of Units			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2015		262,124		$	64.77
Units granted ^(a)		413,959			36.64
Units vested		(113,041	)		52.88
Units forfeited		(42,603	)		46.09
Outstanding at June 30, 2016		520,439		$	46.51

Schedule of Share Based Payment Award Performance Stock Awards Valuation Assumptions

The following assumptions were used to estimate the fair value of PSUs granted during first six months 2016 and 2015:

		Six Months Ended June 30,
		2016			2015
Risk-free interest rate		0.94	%		1.0	%
Expected annual volatility		49	%		33	%
Weighted average grant date fair value per unit	$	36.64		$	56.78

Restricted Stock and Restricted Stock Units Outstanding

The following is a summary of the status of our non-vested restricted stock outstanding at June 30, 2016:

	Equity Awards					Liability Awards
	Shares			Weighted Average Grant Date Fair Value		Shares			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2015		436,764		$	59.74		308,737		$	65.80
Granted		940,491			28.18		508,206			36.01
Vested		(255,270	)		45.79		(214,406	)		52.91
Forfeited		(106,120	)		43.45		(49,519	)		40.33
Outstanding at June 30, 2016		1,015,865		$	35.73		553,018		$	45.70

Stock Option and SARs Activities

Information with respect to SARs activity in the six months ended June 30, 2016 is summarized below:

	Shares			Weighted Average Exercise Price
Outstanding at December 31, 2015		1,510,977		$	63.73
Exercised		—			—
Expired/forfeited		(507,377	)		53.16
Outstanding at June 30, 2016		1,003,600		$	69.08

Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2016

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

	Six Months Ended June 30,
	2016			2015
	(in thousands)
Net cash provided from operating activities included:
Income taxes refunded from taxing authorities	$	(101	)	$	—
Interest paid		69,991			73,189
Non-cash investing and financing activities included:
Increase in asset retirement costs capitalized		3,740			18,684
Decrease in accrued capital expenditures		(4,741)			(156,897	)

Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2016

Commitments And Contingencies Disclosure [Abstract]

Schedule of Increase to Future Minimum Transportation and Gathering Fees

As of June 30, 2016, the increase to future minimum transportation and gathering fees is as follows (in thousands):

		Transportation and Gathering Contracts
2016	$	47,668
2017		102,729
2018		103,345
2019		103,905
2020		104,627
Thereafter		1,040,075
	$	1,502,349

Office Closing and Termination Costs (Tables)

6 Months Ended

Jun. 30, 2016

Restructuring And Related Activities [Abstract]

Summary of Termination Costs

The following summarizes our termination costs for the six months ended June 30, 2016 and 2015 (in thousands):

	Six Months Ended June 30,
		2016		2015
Termination costs	$	—	$	1,414
Building lease		167		3,232
Stock-based compensation		—		1,721
Total termination costs	$	167	$	6,367

Exit Costs Included in Accrued Liabilities in Consolidated Balance Sheet

The following details our accrued liability as of June 30, 2016 (in thousands):

		June 30, 2016
Beginning balance at December 31, 2015	$	11,630
Accrued building rent		167
Payments		(7,901	)
Ending balance at June 30, 2016	$	3,896

Capitalized Costs and Accumulated Depreciation, Depletion and Amortization (Tables)

6 Months Ended

Jun. 30, 2016

Capitalized Costs and Accumulated Depreciation, Depletion and Amortization

	June 30, 2016			December 31, 2015
	(in thousands)
Natural gas and oil properties:
Properties subject to depletion	$	8,074,869		$	8,047,181
Unproved properties		930,142			949,155
Total		9,005,011			8,996,336
Accumulated depreciation, depletion and amortization		(2,864,358	)		(2,635,031	)
Net capitalized costs	$	6,140,653		$	6,361,305

^(a)	Includes capitalized asset retirement costs and the associated accumulated amortization.

Costs Incurred for Property Acquisition, Exploration and Development (Tables)

6 Months Ended

Jun. 30, 2016

Costs Incurred for Property Acquisition, Exploration and Development

	Six Months Ended June 30, 2016		Year Ended December 31, 2015
	(in thousands)
Acreage purchases	$	8,873	$	73,025
Development		219,386		708,268
Exploration:
Drilling		30,914		87,505
Expense		10,637		18,421
Stock-based compensation expense		1,061		2,985
Gas gathering facilities:
Development		1,054		13,337
Subtotal		271,925		903,541
Asset retirement obligations		3,740		22,184
Total costs incurred	$	275,665	$	925,725

^(a)	Includes costs incurred whether capitalized or expensed.

Dispositions and Acquisitions - Additional Information (Detail)	3 Months Ended				6 Months Ended
	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	May 13, 2016 USD ($)
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
(Loss) gain on the sale of assets	$ (3,304,000)		$ 2,909,000		$ (4,947,000)	$ 2,734,000
Merger agreement description					On May 15, 2016, Range and Memorial Resource Development Corp. (“Memorial”) entered into an Agreement and Plan of Merger (the “Merger Agreement”) which provides for the Merger of Memorial and Range. Pursuant to the terms of the Merger Agreement, a wholly-owned subsidiary of Range will merge with and into Memorial, with Memorial surviving as a wholly-owned subsidiary of Range (the “Merger”). In order to complete the Merger, among other conditions, Range stockholders must approve the issuance of Range common stock to Memorial stockholders in connection with the Merger and Memorial stockholders must approve and adopt the Merger Agreement and the transactions contemplated by the Merger Agreement.
Merger agreement date					May 15, 2016
Memorial
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Common stock conversion ratio per share	0.375				0.375
Merger consideration payable							$ 3,200,000,000
Estimated ownership percentage at closing of merger	31.00%				31.00%
Range
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Estimated ownership percentage at closing of merger	69.00%				69.00%
Western Oklahoma Properties
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
(Loss) gain on the sale of assets	$ (2,700,000)
Proceeds from sale of oil and gas properties	77,700,000
Northeast Pennsylvania Non-operated Interest
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
(Loss) gain on the sale of assets		$ (2,100,000)
Proceeds from sale of oil and gas properties		111,500,000
Miscellaneous Proved, Unproved Properties and Surface Acreage
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
(Loss) gain on the sale of assets	(640,000)	443,000	2,900,000	$ (175,000)
Proceeds from sale of oil and gas properties	$ 74,000	1,600,000	$ 3,600,000	10,700,000
Mississippi and South Texas properties
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Proceeds from sale of oil and gas properties		$ 1,200,000
West Texas Properties
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Proceeds from sale of oil and gas properties				$ 10,500,000

Income Taxes - Income Tax Benefit (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Components Of Income Tax Expense Benefit Continuing Operations [Abstract]
Income tax benefit	$ (129,488)	$ (61,975)	$ (173,526)	$ (39,609)
Effective tax rate	36.50%	34.30%	35.40%	30.30%

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Taxes [Line Items]
Federal statutory rate	35.00%	35.00%	35.00%	35.00%
Income tax (benefit) expense	$ (129,488,000)	$ (61,975,000)	$ (173,526,000)	$ (39,609,000)
Equity Compensation
Income Taxes [Line Items]
Income tax (benefit) expense			3,700,000
Deferred compensation plan
Income Taxes [Line Items]
Income tax (benefit) expense	2,600,000	1,100,000	2,500,000	(874,000)
Valuation Allowance, Operating Loss Carryforwards \| State
Income Taxes [Line Items]
Income tax (benefit) expense	$ 3,200,000	$ 6,100,000	$ 7,700,000	$ 11,300,000

Loss Per Common Share - Computations of Basic and Diluted Loss Per Common Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands

3 Months Ended

6 Months Ended

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2016

Jun. 30, 2015

Earnings Per Share Reconciliation [Abstract]

Net loss, as reported

$ (224,936)

$ (118,594)

$ (316,646)

$ (90,910)

Participating earnings

^[1]

(56)

(111)

(224)

Basic net loss attributed to common shareholders

(224,992)

(118,705)

(316,757)

(91,134)

Reallocation of participating earnings

^[1]

Diluted net loss attributed to common shareholders

$ (224,992)

$ (118,705)

$ (316,757)

$ (91,134)

Net loss per common share:

Basic

$ (1.35)

$ (0.71)

$ (1.90)

$ (0.55)

Diluted

$ (1.35)

$ (0.71)

$ (1.90)

$ (0.55)

[1]

Loss Per Common Share - Basic Weighted Average Common Shares Outstanding to Diluted Weighted Average Common Shares Outstanding (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Weighted average common shares outstanding – basic	167,126	166,421	166,964	166,230
Effect of dilutive securities:
Director and employee SARs	0	0	0	0
Weighted average common shares outstanding – diluted	167,126	166,421	166,964	166,230

Loss Per Common Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Restricted Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Stock excluded from earning per share calculation	2.8	2.8	2.8	2.8

Suspended Exploratory Well Costs - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Extractive Industries [Abstract]
Capitalized exploratory well costs that have been capitalized for a period greater than one year	$ 0	$ 2,996

Suspended Exploratory Well Costs - Suspended Exploratory Well Costs (Detail) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($) Project
Extractive Industries [Abstract]
Balance at beginning of period	$ 4,161	$ 2,996
Additions to capitalized exploratory well costs pending the determination of proved reserves	1,556	1,165
Reclassifications to wells, facilities and equipment based on determination of proved reserves	(5,717)
Balance at end of period		4,161
Less exploratory well costs that have been capitalized for a period of one year or less		(1,165)
Capitalized exploratory well costs that have been capitalized for a period greater than one year	$ 0	$ 2,996
Number of projects that have exploration well costs that have been capitalized greater than one year \| Project		1

Indebtedness - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Debt Disclosure [Abstract]
Interest capitalized during the period	$ 0	$ 0	$ 0

Indebtedness - Debt Outstanding (Detail) - USD ($)
$ in Thousands

Jun. 30, 2016

Dec. 31, 2015

Bank debt

$ 86,427

Senior notes

$ 738,616

738,101

4.875% Senior Notes Due 2025

1,828,345

1,826,775

Total debt

2,566,961

2,651,303

Notes Payable to Banks | 3.8% Bank Debt

Senior notes

738,616

738,101

Senior Subordinated Notes | 5.75% Senior Subordinated Notes Due 2021

Bank debt

^[1]

86,427

Senior Subordinated Notes | 5.00% Senior Subordinated Notes Due 2022

494,565

494,095

Senior Subordinated Notes | 5.00% Senior Subordinated Notes Due 2023

592,766

592,223

$ 741,014

$ 740,457

[1]	As of June 30, 2016, there were unamortized debt issuance costs of $4.1 million which exceeded our credit facility balance which were reclassified to other assets on our consolidated balance sheet.

Indebtedness - Debt Outstanding (Parenthetical) (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	May 31, 2015
Notes Payable to Banks \| 3.8% Bank Debt
Debt Instrument [Line Items]
Bank debt percentage	3.80%	3.80%
Unamortized debt issuance costs, net	$ 3,000	$ 8,573
Notes Payable to Banks \| 3.8% Bank Debt \| Other Assets
Debt Instrument [Line Items]
Unamortized debt issuance costs, net	$ 4,100
Senior Notes \| 4.875% Senior Notes Due 2025
Debt Instrument [Line Items]
Interest rate on notes	4.875%	4.875%	4.875%
Unamortized debt issuance costs, net	$ 11,384	$ 11,899
Senior Subordinated Notes \| 5.75% Senior Subordinated Notes Due 2021
Debt Instrument [Line Items]
Interest rate on notes	5.75%	5.75%
Unamortized debt issuance costs, net	$ 5,435	$ 5,905
Senior Subordinated Notes \| 5.00% Senior Subordinated Notes Due 2022
Debt Instrument [Line Items]
Interest rate on notes	5.00%	5.00%
Unamortized debt issuance costs, net	$ 7,234	$ 7,777
Senior Subordinated Notes \| 5.00% Senior Subordinated Notes Due 2023
Debt Instrument [Line Items]
Interest rate on notes	5.00%	5.00%
Unamortized debt issuance costs, net	$ 8,986	$ 9,543

Indebtedness - Bank Debt - Additional Information (Detail) - Bank Credit Facility	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($) CommercialBank	Jun. 30, 2015	Jun. 30, 2016 USD ($) CommercialBank	Jun. 30, 2015	Mar. 17, 2016 USD ($)
Debt Instrument [Line Items]
Bank Credit facility, maximum amount	$ 4,000,000,000		$ 4,000,000,000
Bank Credit facility, borrowing base					$ 3,000,000,000
Bank commitments					$ 2,000,000,000
Percentage holding of commercial banks, Maximum	5.80%		5.80%
Number of commercial banks included in current bank group \| CommercialBank	29		29
Maturity date of loan			Oct. 16, 2019
Bank debt	$ 3,000,000		$ 3,000,000
Undrawn letters of credit	232,100,000		232,100,000
Borrowing capacity available under the commitment amount	$ 1,800,000,000		$ 1,800,000,000
Weighted average interest rate on the bank credit facility	2.80%	1.70%	2.40%	1.70%
Annual rate of commitment fee paid on the undrawn balance			0.30%
Alternate Base Rate
Debt Instrument [Line Items]
Interest rate margin			0.25%
LIBOR Rate
Debt Instrument [Line Items]
Interest rate margin			1.25%
Minimum
Debt Instrument [Line Items]
Annual rate of commitment fee paid on the undrawn balance			0.30%
Minimum \| Credit Facility
Debt Instrument [Line Items]
Annual rate of commitment fee paid on the undrawn balance			0.15%
Minimum \| Alternate Base Rate
Debt Instrument [Line Items]
Base rate on debt	0.25%		0.25%
Minimum \| Alternate Base Rate \| Credit Facility
Debt Instrument [Line Items]
Base rate on debt	0.125%		0.125%
Minimum \| LIBOR Rate
Debt Instrument [Line Items]
Base rate on debt	1.25%		1.25%
Minimum \| LIBOR Rate \| Credit Facility
Debt Instrument [Line Items]
Base rate on debt	1.125%		1.125%
Maximum
Debt Instrument [Line Items]
Annual rate of commitment fee paid on the undrawn balance			0.375%
Maximum \| Credit Facility
Debt Instrument [Line Items]
Annual rate of commitment fee paid on the undrawn balance			0.30%
Maximum \| Alternate Base Rate
Debt Instrument [Line Items]
Base rate on debt	1.25%		1.25%
Maximum \| Alternate Base Rate \| Credit Facility
Debt Instrument [Line Items]
Base rate on debt	0.75%		0.75%
Maximum \| LIBOR Rate
Debt Instrument [Line Items]
Base rate on debt	2.25%		2.25%
Maximum \| LIBOR Rate \| Credit Facility
Debt Instrument [Line Items]
Base rate on debt	1.75%		1.75%

Indebtedness - Senior Notes - Additional Information (Detail) - 4.875% Senior Notes Due 2025 - USD ($) $ in Millions	1 Months Ended
	May 31, 2015	Jun. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Aggregate principal amount	$ 750.0
Senior Notes
Debt Instrument [Line Items]
Interest rate on notes	4.875%	4.875%	4.875%
Net proceeds after underwriting discounts and commissions	$ 737.4
Underwriting discounts and commissions	$ 12.6
Maximum redemption price of notes as percentage of principal amount	101.00%

Indebtedness - Senior Subordinated Notes - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2016
Subordinated Debt
Debt Instrument [Line Items]
Maximum redemption price of notes as percentage of principal amount	101.00%

Indebtedness - Guarantees and Debt Covenants - Additional Information (Detail) - Bank Credit Facility	6 Months Ended
	Jun. 30, 2016 USD ($)
Debt Instrument [Line Items]
Debt instrument, Covenant compliance	Our bank credit facility contains negative covenants that limit our ability, among other things, to pay cash dividends, incur additional indebtedness, sell assets, enter into certain hedging contracts, change the nature of our business or operations, merge, consolidate, or make certain investments. In addition, we are required to maintain a ratio of EBITDAX (as defined in the bank credit facility agreement) to cash interest expense of equal to or greater than 2.5 and a current ratio (as defined in the bank credit facility agreement) of no less than 1.0. In addition, the ratio of the present value of proved reserves (as defined in the credit agreement) to total debt must be equal to or greater than 1.5 until Range has two investment grade ratings. We were in compliance with applicable covenants under the bank credit facility at June 30, 2016. The indentures governing our senior subordinated notes contain various restrictive covenants that are substantially identical to each other and may limit our ability to, among other things, pay cash dividends, incur additional indebtedness, sell assets, enter into transactions with affiliates, or change the nature of our business. At June 30, 2016, we were in compliance with these covenants. Our senior subordinated notes also include a limitation on the amount of credit facility debt we can incur. Certain thresholds, as set forth in the indenture debt incurrence test, may limit our ability to incur debt under our bank credit facility in excess of a $1.5 billion floor amount based on levels of commodity prices of natural gas, NGLs and crude oil used in the annual calculation of discounted future cash flows relating to proved oil and gas reserves (as further defined in the indenture). Based on our current discounted future net cash flows, our bank credit facility usage is limited to $1.5 billion until higher prices or proved reserve additions increase discounted future net cash flows.
Senior Subordinated Notes
Debt Instrument [Line Items]
Bank credit facility, debt incurrence limit	$ 1,500,000,000
Bank Credit facility, current usage limit	$ 1,500,000,000
Maximum
Debt Instrument [Line Items]
Ratio of debt to EBITDAX	250.00%
Present Value Of Proved Reserves To Total Debt.	150.00%
Minimum
Debt Instrument [Line Items]
Current ratio	100.00%

Asset Retirement Obligations - Asset Retirement Obligations (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Asset Retirement Obligation [Abstract]
Beginning of period	$ 264,137
Liabilities incurred	921
Liabilities settled	(5,700)
Disposition of wells	(4,731)
Accretion expense	8,172
Change in estimate	2,819
End of period	265,618
Less current portion	(15,071)	$ (15,071)
Long-term asset retirement obligations	$ 250,547

Capital Stock - Additional Information (Detail) - shares	Jun. 30, 2016	Dec. 31, 2015
Class Of Stock Disclosures [Abstract]
Authorized capital stock	485,000,000	485,000,000
Common stock, shares authorized	475,000,000	475,000,000
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0

Capital Stock (Detail) - shares	6 Months Ended	12 Months Ended
Capital Stock (Detail) - shares	Jun. 30, 2016	Dec. 31, 2015
Stockholders Equity Note [Abstract]
Beginning balance	169,316,460	168,628,177
SARs exercised	0	77,002
Restricted stock grants	459,099	335,103
Restricted stock units vested	246,564	252,507
Treasury shares issued	13,772	23,671
Ending balance	170,035,895	169,316,460

Derivative Activities - Additional Information (Detail)	Jun. 30, 2016 USD ($) MMBTU / d MMBTU bbl t_per_M
Derivatives Excluding Basis Swaps
Derivative [Line Items]
Derivative assets liabilities at fair value net	$ 4,100,000
Natural Gas \| Basis Swaps
Derivative [Line Items]
Derivative assets liabilities at fair value net	$ (3,800,000)
Volume Hedged \| MMBTU	64,125,000
Natural Gas \| Swaps \| 2016
Derivative [Line Items]
Volume Hedged \| MMBTU / d	788,315
Natural Gas \| Swaps \| 2017
Derivative [Line Items]
Volume Hedged \| MMBTU / d	300,000
Propane \| Spread Swaps
Derivative [Line Items]
Derivative assets liabilities at fair value net	$ 4,000,000
Propane \| Spread Swaps \| 2016
Derivative [Line Items]
Volume Hedged \| bbl	1,162,500
Propane \| Spread Swaps \| 2017
Derivative [Line Items]
Volume Hedged \| bbl	1,650,000
Freight \| Swaps \| Level 2
Derivative [Line Items]
Derivative assets liabilities at fair value net	$ (34,000)
Volume Hedged \| t_per_M	5,000

Derivative Activities - Derivative Volumes Hedged and Average Hedge Prices (Detail) - Swaps	Jun. 30, 2016 MMBTU / d bbl / d $ / MMBTU $ / bbl $ / gal
Natural Gas \| 2016
Derivative [Line Items]
Volume Hedged \| MMBTU / d	788,315
Weighted Average Hedge Price \| $ / MMBTU	3.22
Natural Gas \| 2017
Derivative [Line Items]
Volume Hedged \| MMBTU / d	300,000
Weighted Average Hedge Price \| $ / MMBTU	2.91
Natural Gas \| 2018
Derivative [Line Items]
Volume Hedged \| MMBTU / d	70,000
Weighted Average Hedge Price \| $ / MMBTU	2.92
Crude Oil \| 2016
Derivative [Line Items]
Volume Hedged	6,000
Weighted Average Hedge Price \| $ / bbl	58.40
Crude Oil \| 2017
Derivative [Line Items]
Volume Hedged	2,496
Weighted Average Hedge Price \| $ / bbl	51.29
Commodity Contract NGLs (C2 - Ethane) \| 2016
Derivative [Line Items]
Volume Hedged	500
Weighted Average Hedge Price \| $ / gal	0.22
Commodity Contract NGLs (C2 - Ethane) \| 2017
Derivative [Line Items]
Volume Hedged	3,000
Weighted Average Hedge Price \| $ / gal	0.27
Commodity Contract NGLs (C3 - Propane) \| 2016
Derivative [Line Items]
Volume Hedged	5,500
Weighted Average Hedge Price \| $ / gal	0.60
Commodity Contract NGLs (C3 - Propane) \| 2017
Derivative [Line Items]
Volume Hedged	3,966
Weighted Average Hedge Price \| $ / gal	0.53
Commodity Contract NGLs (NC4 - Normal Butane) \| 2016
Derivative [Line Items]
Volume Hedged	4,750
Weighted Average Hedge Price \| $ / gal	0.66
Commodity Contract NGLs (NC4 - Normal Butane) \| 2017
Derivative [Line Items]
Volume Hedged	500
Weighted Average Hedge Price \| $ / gal	0.61
Commodity Contract NGLs (C5 - Natural Gasoline) \| 2016
Derivative [Line Items]
Volume Hedged	3,500
Weighted Average Hedge Price \| $ / gal	1.11
Commodity Contract NGLs (C5 - Natural Gasoline) \| 2017
Derivative [Line Items]
Volume Hedged	1,750
Weighted Average Hedge Price \| $ / gal	0.97

Derivative Activities - Schedule of Additional Information Related to Master Netting Arrangements with Derivative Counterparties (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Derivative [Line Items]
Gross Amounts of Recognized Assets	$ 83,612	$ 304,350
Gross Amounts Offset in the Balance Sheet	(39,549)	(15,588)
Net Amounts of Assets Presented in the Balance Sheet	44,063	288,762
Gross Amounts of Recognized (Liabilities)	(79,441)	(16,745)
Gross Amounts Offset in the Balance Sheet	39,549	15,588
Net Amounts of (Liabilities) Presented in the Balance Sheet	(39,892)	(1,157)
Natural Gas \| Swaps
Derivative [Line Items]
Gross Amounts of Recognized Assets	48,702	219,357
Gross Amounts Offset in the Balance Sheet	(14,875)	(10,245)
Net Amounts of Assets Presented in the Balance Sheet	33,827	209,112
Gross Amounts of Recognized (Liabilities)	(50,780)	(10,245)
Gross Amounts Offset in the Balance Sheet	14,875	10,245
Net Amounts of (Liabilities) Presented in the Balance Sheet	(35,905)	0
Natural Gas \| Basis Swaps
Derivative [Line Items]
Gross Amounts of Recognized Assets	3,621	8,251
Gross Amounts Offset in the Balance Sheet	(6,942)	(2,765)
Net Amounts of Assets Presented in the Balance Sheet	(3,321)	5,486
Gross Amounts of Recognized (Liabilities)	(7,446)	(2,786)
Gross Amounts Offset in the Balance Sheet	6,942	2,765
Net Amounts of (Liabilities) Presented in the Balance Sheet	(504)	(21)
Crude Oil \| Swaps
Derivative [Line Items]
Gross Amounts of Recognized Assets	12,472	38,699
Gross Amounts Offset in the Balance Sheet	(5,312)	0
Net Amounts of Assets Presented in the Balance Sheet	7,160	38,699
Gross Amounts of Recognized (Liabilities)	(4,108)
Gross Amounts Offset in the Balance Sheet	5,312
Net Amounts of (Liabilities) Presented in the Balance Sheet	1,204
Commodity Contract NGLs (C2 - Ethane) \| Swaps
Derivative [Line Items]
Gross Amounts of Recognized Assets	51
Gross Amounts Offset in the Balance Sheet	(201)
Net Amounts of Assets Presented in the Balance Sheet	(150)
Gross Amounts of Recognized (Liabilities)	(1,252)
Gross Amounts Offset in the Balance Sheet	201
Net Amounts of (Liabilities) Presented in the Balance Sheet	(1,051)
Commodity Contract NGLs (C3 - Propane) \| Swaps
Derivative [Line Items]
Gross Amounts of Recognized Assets	1,999	15,884
Gross Amounts Offset in the Balance Sheet	(1,391)	0
Net Amounts of Assets Presented in the Balance Sheet	608	15,884
Gross Amounts of Recognized (Liabilities)	(2,101)
Gross Amounts Offset in the Balance Sheet	1,391
Net Amounts of (Liabilities) Presented in the Balance Sheet	(710)
Commodity Contract NGLs (C3 - Propane) \| Spread Swaps
Derivative [Line Items]
Gross Amounts of Recognized Assets	11,964	2,497
Gross Amounts Offset in the Balance Sheet	(8,394)	(2,497)
Net Amounts of Assets Presented in the Balance Sheet	3,570	0
Gross Amounts of Recognized (Liabilities)	(7,988)	(3,633)
Gross Amounts Offset in the Balance Sheet	8,394	2,497
Net Amounts of (Liabilities) Presented in the Balance Sheet	406	(1,136)
Commodity Contract NGLs (NC4 - Normal Butane) \| Swaps
Derivative [Line Items]
Gross Amounts of Recognized Assets	522	6,968
Gross Amounts Offset in the Balance Sheet	(86)	0
Net Amounts of Assets Presented in the Balance Sheet	436	6,968
Gross Amounts of Recognized (Liabilities)	(2,567)
Gross Amounts Offset in the Balance Sheet	86
Net Amounts of (Liabilities) Presented in the Balance Sheet	(2,481)
Commodity Contract NGLs (C5 - Natural Gasoline) \| Swaps
Derivative [Line Items]
Gross Amounts of Recognized Assets	4,281	12,694
Gross Amounts Offset in the Balance Sheet	(2,314)	(81)
Net Amounts of Assets Presented in the Balance Sheet	1,967	12,613
Gross Amounts of Recognized (Liabilities)	(3,165)	(81)
Gross Amounts Offset in the Balance Sheet	2,314	81
Net Amounts of (Liabilities) Presented in the Balance Sheet	(851)	$ 0
Freight \| Swaps
Derivative [Line Items]
Gross Amounts of Recognized Assets	0
Gross Amounts Offset in the Balance Sheet	(34)
Net Amounts of Assets Presented in the Balance Sheet	(34)
Gross Amounts of Recognized (Liabilities)	(34)
Gross Amounts Offset in the Balance Sheet	34
Net Amounts of (Liabilities) Presented in the Balance Sheet	$ 0

Derivative Activities - Effects of Derivatives on Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative [Line Items]
Derivative Fair Value Income (Loss)	$ (162,798)	$ (34,791)	$ (75,890)	$ 88,048
Collars
Derivative [Line Items]
Derivative Fair Value Income (Loss)	0	(1,650)	0	6,765
Basis Swaps
Derivative [Line Items]
Derivative Fair Value Income (Loss)	(4,199)	8,959	3,075	(2,393)
Commodity \| Swaps
Derivative [Line Items]
Derivative Fair Value Income (Loss)	(158,576)	(42,100)	(78,931)	83,676
Freight \| Swaps
Derivative [Line Items]
Derivative Fair Value Income (Loss)	$ (23)	$ 0	$ (34)	$ 0

Fair Value Measurements - Fair Value Hierarchy Table for Assets and Liabilities Measured at Fair Value (Detail) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Swaps \| Fair Value, Inputs, Level 2 \| Freight
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets liabilities at fair value net	$ (34,000)
Fair Value, Measurements, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Trading securities held in the deferred compensation plans	62,194,000	$ 62,376,000
Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Trading securities held in the deferred compensation plans	62,194,000	62,376,000
Fair Value, Measurements, Recurring \| Swaps
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets liabilities at fair value net	4,054,000	283,276,000
Fair Value, Measurements, Recurring \| Swaps \| Freight
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets liabilities at fair value net	(34,000)
Fair Value, Measurements, Recurring \| Swaps \| Fair Value, Inputs, Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets liabilities at fair value net	4,054,000	283,276,000
Fair Value, Measurements, Recurring \| Swaps \| Fair Value, Inputs, Level 2 \| Freight
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets liabilities at fair value net	(34,000)
Fair Value, Measurements, Recurring \| Basis Swaps
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets liabilities at fair value net	151,000	4,329,000
Fair Value, Measurements, Recurring \| Basis Swaps \| Fair Value, Inputs, Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets liabilities at fair value net	$ 151,000	$ 4,329,000

Fair Value Measurements - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) Counterparty	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest and dividends	$ 181,000	$ 139,000	$ 317,000	$ 248,000
Mark-to-market gain (loss)	1,200,000	(576,000)	1,400,000	832,000
Impairment on natural gas and oil properties	0	$ 0	43,040,000	$ 0
Allowance for doubtful accounts on accounts receivable	4,722,000		$ 4,722,000		$ 4,994,000
Number of financial institutions included in counter parties \| Counterparty			21
Number of counterparties \| Counterparty			5
Net derivative asset	$ 1,900,000		$ 1,900,000
Western Oklahoma
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impairment on natural gas and oil properties			$ 43,040,000

Fair Value Measurements - Value of Assets Measured at Fair Value on Non Recurring Basis (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impairment of proved properties	$ 0	$ 0	$ 43,040	$ 0
Fair Value, Measurements, Nonrecurring \| Natural Gas and Oil Properties
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value			90,150	0
Impairment of proved properties			$ 43,040	$ 0

Fair Value Measurements - Carrying Amounts and Fair Values of Financial Instruments (Detail) - USD ($)
$ in Thousands

Jun. 30, 2016

Dec. 31, 2015

Carrying Value

Assets:

$ 44,063

$ 288,762

Marketable securities

^[1]

62,194

62,376

Deferred compensation plan

(39,892)

(1,157)

Bank credit facility

^[2]

(3,000)

(95,000)

^[3]

(158,669)

(122,918)

Carrying Value | 4.875% Senior Notes Due 2025

Carrying Value | 5.75% Senior Subordinated Notes Due 2021

^[2]

(750,000)

Carrying Value | 5.00% Senior Subordinated Notes Due 2022

^[2]

(500,000)

Carrying Value | 5.00% Senior Subordinated Notes Due 2023

^[2]

(600,000)

^[2]

(750,000)

Fair Value

Assets:

44,063

288,762

Marketable securities

^[1]

62,194

62,376

Deferred compensation plan

(39,892)

(1,157)

Bank credit facility

^[2]

(3,000)

(95,000)

^[3]

(158,669)

(122,918)

Fair Value | 4.875% Senior Notes Due 2025

Fair Value | 5.75% Senior Subordinated Notes Due 2021

^[2]

(713,438)

(572,813)

Fair Value | 5.00% Senior Subordinated Notes Due 2022

^[2]

(488,750)

(396,250)

Fair Value | 5.00% Senior Subordinated Notes Due 2023

^[2]

(562,500)

(447,000)

Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]

^[2]

$ (704,063)

$ (551,250)

[1]	Marketable securities, which are held in our deferred compensation plans, are actively traded on major exchanges.
[2]	The book value of our bank debt approximates fair value because of its floating rate structure. The fair value of our senior notes and our senior subordinated notes is based on end of period market quotes which are Level 2 inputs.
[3]	The fair value of our deferred compensation plan is updated at the closing price on the balance sheet date which is a Level 1 input.

Fair Value Measurements - Carrying Amounts and Fair Values of Financial Instruments (Parenthetical) (Detail)	Jun. 30, 2016	Dec. 31, 2015	May 31, 2015
Senior Notes \| 4.875% Senior Notes Due 2025
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Interest rate on notes	4.875%	4.875%	4.875%
Senior Subordinated Notes \| 5.75% Senior Subordinated Notes Due 2021
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Interest rate on notes	5.75%	5.75%
Senior Subordinated Notes \| 5.00% Senior Subordinated Notes Due 2022
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Interest rate on notes	5.00%	5.00%
Senior Subordinated Notes \| 5.00% Senior Subordinated Notes Due 2023
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Interest rate on notes	5.00%	5.00%

Stock-Based Compensation Plans - Additional Information (Detail) - Plans	3 Months Ended	6 Months Ended
	Mar. 31, 2014	Jun. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Active equity-based stock plans		1
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Actual payout of shares on performance units granted		150.00%
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Actual payout of shares on performance units granted		0.00%
Stock Appreciation Rights (SARs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		3 years
Stock Appreciation Rights (SARs) \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration term of stock units		5 years
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		3 years
Performance Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years	3 years

Stock-Based Compensation Plans - Allocation of Stock-Based Compensation by Functional Category (Detail) - USD ($)
$ in Thousands

3 Months Ended

6 Months Ended

12 Months Ended

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2016

Jun. 30, 2015

Dec. 31, 2015

^[1]

Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]

$ 16,888

$ 18,411

$ 29,795

$ 32,902

Direct Operating Expense

Brokered Natural Gas and Marketing Expense

696

654

1,284

1,540

Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]

Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]

378

619

894

1,125

Exploration Expense

General and Administrative Expense

371

751

1,061

^[1]

1,483

$ 2,985

Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]

Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]

15,443

15,953

26,556

27,033

Termination Costs