Coterra Energy (CTRA) 10-Q 24 Oct 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 20, 2014
Document and Entity Information	'	'
Entity Registrant Name	'CABOT OIL & GAS CORP	'
Entity Central Index Key	'0000858470	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	413,019,880
Entity Current Reporting Status	'Yes	'

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEET (Unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$309,987	$23,400
Restricted cash	0	28,094
Accounts receivable, net	191,270	222,476
Inventories	13,731	17,468
Deferred income taxes	53,725	81,855
Other current assets	19,233	5,606
Total current assets	587,946	378,899
Properties and equipment, net (Successful efforts method)	5,130,213	4,546,227
Equity method investments	57,495	26,892
Other assets	31,610	29,062
TOTAL ASSETS	5,807,264	4,981,080
Current liabilities	'	'
Accounts payable	379,787	288,801
Accrued liabilities	44,843	87,513
Income taxes payable	8,161	31,591
Total current liabilities	432,791	407,905
Postretirement benefits	35,936	33,554
Long-term debt	1,612,000	1,147,000
Deferred income taxes	1,208,036	1,067,912
Asset retirement obligation	114,241	73,853
Other liabilities	37,789	46,254
Total liabilities	3,440,793	2,776,478
Commitments and contingencies	'	'
Stockholders’ equity	'	'
Common stock: Authorized -- 960,000,000 and 480,000,000 shares of $0.10 par value in 2014 and 2013, respectively Issued--422,912,560 and 422,014,681 shares in 2014 and 2013, respectively	42,291	42,201
Additional paid-in capital	713,087	710,940
Retained earnings	1,929,026	1,627,805
Accumulated other comprehensive income (loss)	-19,199	-8,361
Less treasury stock, at cost: 9,638,980 and 5,618,166 shares in 2014 and 2013, respectively	-298,734	-167,983
Total stockholders’ equity	2,366,471	2,204,602
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$5,807,264	$4,981,080

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEET (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]	'	'
Common stock, authorized shares	960,000,000	480,000,000
Common stock, par value (in dollars per share)	$0.10	$0.10
Common stock, Issued shares	422,912,560	422,014,681
Treasury stock, shares	9,638,980	5,618,166

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
OPERATING REVENUES	'	'	'	'
Natural gas	$347,970	$341,901	$1,218,540	$1,004,085
Crude oil and condensate	82,563	84,209	228,047	220,090
Gain (loss) on derivative instruments	71,906	0	69,577	0
Brokered natural gas	6,501	7,165	27,794	26,302
Other	3,077	2,575	11,049	8,338
TOTAL OPERATING REVENUES	512,017	435,850	1,555,007	1,258,815
OPERATING EXPENSES	'	'	'	'
Direct operations	37,802	32,923	109,241	101,398
Transportation and gathering	85,966	60,803	247,707	159,672
Brokered natural gas	5,680	5,913	24,570	21,006
Taxes other than income	10,933	11,532	36,794	34,583
Exploration	8,812	3,891	19,963	12,444
Depreciation, depletion and amortization	154,013	168,980	458,995	469,022
General and administrative	19,579	24,697	61,342	82,009
TOTAL OPERATING EXPENSES	322,785	308,739	958,612	880,134
Earnings (loss) on equity method investments	1,063	278	1,819	614
Gain (loss) on sale of assets	46	4,421	-2,735	4,601
INCOME FROM OPERATIONS	190,341	131,810	595,479	383,896
Interest expense	17,422	16,074	50,312	49,366
Income before income taxes	172,919	115,736	545,167	334,530
Income tax expense	72,131	45,847	218,928	132,703
NET INCOME	$100,788	$69,889	$326,239	$201,827
Earnings per share	'	'	'	'
Basic (in dollars per share)	$0.24	$0.17	$0.78	$0.48
Diluted (in dollars per share)	$0.24	$0.17	$0.78	$0.48
Weighted-average common shares outstanding	'	'	'	'
Basic (in shares)	416,173	420,986	416,785	420,664
Diluted (in shares)	418,093	423,453	418,468	422,824
Dividends per common share (in dollars per share)	$0.02	$0.02	$0.06	$0.04

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Statement of Comprehensive Income [Abstract]	'		'		'		'
Net income	$100,788		$69,889		$326,239		$201,827
Other comprehensive income (loss), net of taxes:	'		'		'		'
Reclassification adjustment for settled cash flow hedge contracts(1)	12,965	[1]	-11,942	[1]	69,337	[1]	-22,372	[1]
Changes in fair value of cash flow hedge contracts(2)	0	[2]	-1,447	[2]	-80,175	[2]	31,417	[2]
Postretirement benefits:	'		'		'		'
Amortization of net loss(3)	0	[3]	70	[3]	0	[3]	319	[3]
Total other comprehensive income (loss)	12,965		-13,319		-10,838		9,364
Comprehensive income (loss)	$113,753		$56,570		$315,401		$211,191
[1]	Net of income taxes of $(8,592) and $7,742 for the three months ended September 30, 2014 and 2013, respectively, and $(45,951) and $14,504 for the nine months ended September 30, 2014 and 2013, respectively.
[2]	Net of income taxes of $937 for the three months ended September 30, 2013 and $53,135 and $(20,366) for the nine months ended September 30, 2014 and 2013, respectively.
[3]	Net of income taxes of $(46) and $(206) for the three and nine months ended September 30, 2013, respectively.

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Reclassification adjustment for settled cash flow hedge contracts, income taxes	($8,592)	$7,742	($45,951)	$14,504
Changes in fair value of cash flow hedge contracts, income taxes	'	937	53,135	-20,366
Pension and postretirement benefits:	'	'	'	'
Amortization of net loss, income taxes	'	($46)	'	($206)

CONDENSED_CONSOLIDATED_STATEME3

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES	'	'
Net income	$326,239	$201,827
Adjustments to reconcile net income to cash provided by operating activities:	'	'
Depreciation, depletion and amortization	458,995	469,022
Deferred income tax expense	181,439	107,235
(Gain) loss on sale of assets	2,735	-4,601
Exploration expense	6,454	807
Unrealized (gain) loss on derivative instruments	-44,766	0
Amortization of debt issuance costs	3,378	2,767
Stock-based compensation and other	13,304	36,684
Changes in assets and liabilities:	'	'
Accounts receivable, net	30,418	-6,321
Income taxes	-23,430	-3,639
Inventories	3,737	-6,665
Other current assets	-147	-1,547
Accounts payable and accrued liabilities	-9,712	-19,837
Other assets and liabilities	607	228
Stock-based compensation tax benefit	-6,001	-9,284
Net cash provided by operating activities	943,250	766,676
CASH FLOWS FROM INVESTING ACTIVITIES	'	'
Capital expenditures	-964,741	-843,400
Acquisitions	-15,826	-128
Proceeds from sale of assets	3,913	15,174
Restricted cash	28,094	0
Investment in equity method investments	-28,784	-8,624
Net cash used in investing activities	-977,344	-836,978
CASH FLOWS FROM FINANCING ACTIVITIES	'	'
Borrowings from debt	1,802,000	585,000
Repayments of debt	-1,337,000	-510,000
Treasury stock repurchases	-119,767	0
Dividends paid	-25,018	-16,830
Stock-based compensation tax benefit	6,001	9,284
Capitalized debt issuance costs	-5,626	0
Other	91	44
Net cash provided by financing activities	320,681	67,498
Net increase (decrease) in cash and cash equivalents	286,587	-2,804
Cash and cash equivalents, beginning of period	23,400	30,736
Cash and cash equivalents, end of period	$309,987	$27,932

Financial_Statement_Presentati

Financial Statement Presentation	9 Months Ended
	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Financial Statement Presentation	'
	Financial Statement Presentation
	During interim periods, Cabot Oil & Gas Corporation (the Company) follows the same accounting policies disclosed in its Annual Report on Form 10-K for the year ended December 31, 2013 (Form 10-K) filed with the Securities and Exchange Commission (SEC). The interim financial statements should be read in conjunction with the notes to the consolidated financial statements and information presented in the Form 10-K. In management’s opinion, the accompanying interim condensed consolidated financial statements contain all material adjustments, consisting only of normal recurring adjustments, necessary for a fair statement. The results for any interim period are not necessarily indicative of the expected results for the entire year.
	Certain reclassifications have been made to prior year statements to conform with the current year presentation. These reclassifications have no impact on previously reported net income.
	With respect to the unaudited financial information of the Company as of September 30, 2014 and for the three and nine months ended September 30, 2014 and 2013, PricewaterhouseCoopers LLP reported that they have applied limited procedures in accordance with professional standards for a review of such information. However, their separate report dated October 24, 2014 appearing herein states that they did not audit and they do not express an opinion on that unaudited financial information. Accordingly, the degree of reliance on their report on such information should be restricted in light of the limited nature of the review procedures applied. PricewaterhouseCoopers LLP is not subject to the liability provisions of Section 11 of the Securities Act of 1933 for their report on the unaudited financial information because that report is not a “report” or a “part” of a registration statement prepared or certified by PricewaterhouseCoopers LLP within the meaning of Sections 7 and 11 of the Act.
	Recent Accounting Pronouncements
	In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. The guidance applies prospectively to new disposals and new classifications of disposal groups as held for sale after the effective date. The guidance is effective for interim and annual periods beginning on or after December 15, 2014. The Company does not expect the adoption of this guidance to have a material impact on its financial position, results of operations or cash flows.
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, as a new Topic, Accounting Standards Codification Topic 606. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle of the guidance is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU is effective beginning in fiscal year 2017 and can be adopted either retrospectively or as a cumulative-effect adjustment as of the date of adoption. The Company is currently evaluating the effect that adopting this guidance will have on its financial position, results of operations or cash flows.
	In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern, as a new Sub-topic, Accounting Standards Codification Sub-topic 205.40. The new going concern standard codifies in generally accepted accounting principles (GAAP) management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. This ASU is effective for interim and annual periods beginning on or after December 15, 2016 and early adoption is permitted. The Company does not expect the adoption of this guidance to have a material impact on its financial position or results of operations.

Properties_and_Equipment_Net

Properties and Equipment, Net	9 Months Ended
	Sep. 30, 2014
Property, Plant and Equipment [Abstract]	'
Properties and Equipment, Net	'
	Properties and Equipment, Net
	Properties and equipment, net are comprised of the following:
	(In thousands)	September 30,			December 31,
		2014			2013
	Proved oil and gas properties	$	7,405,851		$	6,362,570
	Unproved oil and gas properties	354,882			375,428
	Gathering and pipeline systems	240,705			239,958
	Land, buildings and other equipment	105,143			94,243
		8,106,581			7,072,199
	Accumulated depreciation, depletion and amortization	(2,976,368		)	(2,525,972		)
		$	5,130,213		$	4,546,227
	At September 30, 2014, the Company did not have any projects that had exploratory well costs that were capitalized for a period of greater than one year after drilling.
	Subsequent Events
	Acquisitions
	In October 2014, the Company completed the acquisition of certain proved and unproved oil and gas properties in the Eagle Ford Shale in south Texas for approximately $210.0 million. Total cash consideration paid by the Company as of the closing date was approximately $186.2 million, subject to customary post-closing adjustments, which reflects the impact of customary purchase price adjustments and an adjustment for consents that the seller was unable to obtain for certain leaseholds prior to closing.
	Divestitures
	In October 2014, the Company completed the divestiture of certain proved and unproved oil and gas properties in east Texas to a third party for approximately $44.3 million. Total cash consideration received by the Company as of the closing date was approximately $39.9 million, subject to customary post-closing adjustments, which reflects the impact of customary purchase price adjustments. The net book value associated with the oil and gas properties held for sale as of September 30, 2014 was approximately $21.5 million and is included in properties and equipment, net in the Condensed Consolidated Balance Sheet.

Equity_Method_Investments

Equity Method Investments	9 Months Ended
	Sep. 30, 2014
Equity Method Investments and Joint Ventures [Abstract]	'
Equity Method Investments	'
	Equity Method Investments
	During the nine months ended September 30, 2014, the Company made contributions of approximately $28.8 million to its equity method investments ($26.6 million to Constitution Pipeline Company, LLC and $2.2 million to Meade Pipeline Co LLC (Meade)).
	For further information regarding the Company’s equity method investments, refer to Note 4 of the Notes to the Consolidated Financial Statements in the Form 10-K.
	Meade Pipeline Co LLC
	In February 2014, the Company acquired a 20% equity interest in Meade. Meade was formed to participate in the development and construction of a 177-mile pipeline (Central Penn Line) that will transport natural gas from Susquehanna County, Pennsylvania to an interconnect with Transcontinental Gas Pipe Line Company, LLC’s (Transco) mainline in Lancaster County, Pennsylvania. The new pipeline will be constructed and operated by Transco and will be owned by Transco and Meade in proportion to their respective ownership percentages of approximately 61% and 39%, respectively. Under the terms of the Meade LLC agreement, the Company agreed to invest its proportionate share of Meade’s anticipated costs associated with the new pipeline of $149 million, which is expected to occur over the next three to four years. The expected in-service date for the new pipeline is scheduled for the second half of 2017.

Debt_and_Credit_Agreements

Debt and Credit Agreements	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Debt and Credit Agreements	'
	Debt and Credit Agreements
	The Company’s debt and credit agreements consisted of the following:
	(In thousands)	September 30,			December 31,
		2014			2013
	Long-Term Debt
	7.33% weighted-average fixed rate notes	$	20,000		$	20,000
	6.51% weighted-average fixed rate notes	425,000			425,000
	9.78% notes	67,000			67,000
	5.58% weighted-average fixed rate notes	175,000			175,000
	3.65% weighted-average fixed rate notes	925,000			—
	Revolving credit facility	—			460,000
		$	1,612,000		$	1,147,000
	Effective April 15, 2014, the lenders under the Company’s revolving credit facility approved an increase in the Company’s borrowing base from $2.3 billion to $3.1 billion as part of the annual redetermination under the terms of the revolving credit facility agreement. The commitments under the revolving credit facility remain unchanged at $1.4 billion. At September 30, 2014, the Company had no borrowings outstanding under its revolving credit facility and had $1.4 billion available for future borrowings. The Company’s weighted-average effective interest rate for the three months ended September 30, 2014 and 2013 was approximately 2.2% and for the nine months ended September 30, 2014 and 2013 was approximately 2.2% and 2.3%, respectively.
	The Company was in compliance with all restrictive financial covenants for both the revolving credit facility and fixed rate notes as of September 30, 2014.
	3.65% Weighted-Average Fixed Rate Notes
	In September 2014, the Company issued $925 million principal amount of senior unsecured fixed-rate notes to a group of 24 investors in a private placement. The notes have bullet maturities and were issued in three separate tranches as follows:
		Principal		Term	Maturity Date		Coupon
	Tranche 1	$100,000,000		7 years	Sep-21		3.24	%
	Tranche 2	$575,000,000		10 years	Sep-24		3.67	%
	Tranche 3	$250,000,000		12 years	Sep-26		3.77	%
	Interest on each series of the 3.65% weighted‑average fixed rate notes is payable semi‑annually. The Company may prepay all or any portion of the notes of each series on any date at a price equal to the principal amount thereof plus accrued and unpaid interest plus a make‑whole premium. The notes contain restrictions on the merger of the Company or any subsidiary with a third party other than under certain limited conditions. There are also various other restrictive covenants customarily found in such debt instruments. Those covenants include a required asset coverage ratio (present value of proved reserves to debt and other liabilities) of at least 1.75 to 1.0 and a minimum annual coverage ratio of operating cash flow to interest expense for the trailing four quarters of 2.8 to 1.0. The notes are also subject to customary events of default.

Derivative_Instruments_and_Hed

Derivative Instruments and Hedging Activities	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments and Hedging Activities	'
	Derivative Instruments and Hedging Activities
	The Company periodically enters into commodity derivatives to manage its exposure to price fluctuations on natural gas and crude oil production. The Company’s credit agreement restricts the ability of the Company to enter into commodity derivatives other than to hedge or mitigate risks to which the Company has actual or projected exposure or as permitted under the Company’s risk management policies and where such derivatives do not subject the Company to material speculative risks. All of the Company’s derivatives are used for risk management purposes and are not held for trading purposes.
	Through March 31, 2014, the Company elected to designate its commodity derivatives as cash flow hedges for accounting purposes. Effective April 1, 2014, the Company elected to discontinue hedge accounting for its commodity derivatives on a prospective basis. Accordingly, the change in the fair value of derivatives designated as hedges that are effective is recorded to accumulated other comprehensive income (loss) in stockholders’ equity in the Condensed Consolidated Balance Sheet. The ineffective portion of the change in the fair value of derivatives designated as hedges and the change in fair value of realized cash settlements of derivatives not designated as hedges are recorded as a component of operating revenues in gain (loss) on derivative instruments in the Condensed Consolidated Statement of Operations.
	As a result of discontinuing hedge accounting, the unrealized loss included in accumulated other comprehensive income (loss) as of April 1, 2014 of $73.4 million ($44.2 million net of tax) was frozen and will be reclassified into natural gas and crude oil and condensate revenues in the Condensed Consolidated Statement of Operations in future periods as the underlying hedge transactions occur. Through September 30, 2014, the Company has reclassified after-tax losses of $26.8 million that were previously frozen in accumulated other comprehensive income (loss) to natural gas and crude oil and condensate revenues in the Condensed Consolidated Statement of Operations. As of September 30, 2014, the Company expects to reclassify $17.4 million in after-tax losses associated with its commodity derivatives from accumulated other comprehensive income (loss) to natural gas and crude oil and condensate revenues in the Condensed Consolidated Statement of Operations over the next three months.
	As of September 30, 2014, the Company had the following outstanding commodity derivatives:
									Collars											Swaps
									Floor							Ceiling
	Type of Contract		Volume				Contract Period		Range			Weighted-Average				Range		Weighted- Average		Weighted- Average
	Natural gas		84.9		Bcf		Oct. 2014 - Dec. 2014		$3.60-$4.37			$	4.13			$4.22-$4.80		$	4.51
	Natural gas		26.8		Bcf		Oct. 2014 - Dec. 2014													$	4.05
	Natural gas		35.5		Bcf		Jan. 2015 - Dec. 2015		—			$	3.86			$4.36-$4.43		$	4.4
	Natural gas		35.5		Bcf		Jan. 2015 - Dec. 2015													$	4.12
	Crude oil		184		Mbbl		Oct. 2014 - Dec. 2014													$	97
	Natural gas prices are stated per Mcf and crude oil prices are stated per barrel.
	Effect of Derivative Instruments on the Condensed Consolidated Balance Sheet
					Fair Values of Derivative Instruments
					Derivative Assets								Derivative Liabilities
	(In thousands)		Balance Sheet Location		September 30,				December 31,				September 30,				December 31,
					2014				2013				2014				2013
	Derivatives Designated as Hedges
	Commodity contracts		Other current assets		$	—			$	3,019			$	—			$	—
	Commodity contracts		Accrued liabilities		—				—				—				13,912
	Derivatives Not Designated as Hedges
	Commodity contracts		Other current assets		16,503				—				—				—
	Commodity contracts		Accrued liabilities		—				—				102				—
	Commodity contracts		Other liabilities		—				—				549				—
					$	16,503			$	3,019			$	651			$	13,912
	Offsetting of Derivative Assets and Liabilities in the Condensed Consolidated Balance Sheet
	(In thousands)		September 30,				December 31,
			2014				2013
	Derivative Assets
	Gross amounts of recognized assets		$	19,445			$	13,792
	Gross amounts offset in the statement of financial position		(2,942		)		(10,773		)
	Net amounts of assets presented in the statement of financial position		16,503				3,019
	Gross amounts of financial instruments not offset in the statement of financial position		238				373
	Net amount		$	16,741			$	3,392
	Derivative Liabilities
	Gross amounts of recognized liabilities		$	3,593			$	24,685
	Gross amounts offset in the statement of financial position		(2,942		)		(10,773		)
	Net amounts of liabilities presented in the statement of financial position		651				13,912
	Gross amounts of financial instruments not offset in the statement of financial position		—				—
	Net amount		$	651			$	13,912
	Effect of Derivative Instruments on Accumulated Other Comprehensive Income (Loss)
	The amount of gain (loss) recognized in accumulated other comprehensive income (loss) on derivatives (effective portion) is as follows:
			Three Months Ended								Nine Months Ended
			September 30,								September 30,
	(In thousands)		2014				2013				2014				2013
	Commodity contracts		$	—			$	(2,384	)		$	(133,310	)		$	51,783
	The amount of gain (loss) reclassified from accumulated other comprehensive income (loss) into income (effective portion) is as follows:
			Three Months Ended								Nine Months Ended
			September 30,								September 30,
	(In thousands)		2014 (1)				2013				2014 (1)				2013
	Natural gas revenues		$	(21,427	)		$	20,766			$	(114,304	)		$	33,822
	Crude oil and condensate revenues		(130		)		(1,082		)		(984		)		3,054
			$	(21,557	)		$	19,684			$	(115,288	)		$	36,876
	-1	The Company ceased hedge accounting effective April 1, 2014. For the three and nine months ended September 30, 2014, a loss of approximately $21.6 million and $44.5 million, respectively, were reclassified into income. These amounts were previously frozen in accumulated other comprehensive income (loss).
	Effect of Derivative Instruments on the Condensed Consolidated Statement of Operations
	The amount of gain (loss) recognized in the Condensed Consolidated Statement of Operations on derivative instruments is as follows:
			Three Months Ended								Nine Months Ended
			September 30,								September 30,
	(In thousands)		2014				2013				2014				2013
	Derivatives Designated as Hedges
	Realized
Natural gas		$	—			$	20,766			$	(70,557	)		$	33,822
Crude oil and condensate		—				(1,082		)		(218		)		3,054
		$	—			$	19,684			$	(70,775	)		$	36,876
Derivatives Not Designated as Hedges
Realized
Natural gas		$	(21,427	)		$	—			$	(43,747	)		$	—
Crude oil and condensate		(130		)		—				(766		)		—
Gain (loss) on derivative instruments		40,073				—				24,811				—
Unrealized
Gain (loss) on derivative instruments		31,833				—				44,766				—
		$	50,349			$	—			$	25,064			$	—
		$	50,349			$	19,684			$	(45,711	)		$	36,876
For the three and nine months ended September 30, 2014 and 2013, respectively, there was no ineffectiveness recorded in the Condensed Consolidated Statement of Operations related to derivative instruments designated as hedges.
Additional Disclosures about Derivative Instruments and Hedging Activities
The use of derivative instruments involves the risk that the counterparties will be unable to meet their obligations under the agreements. The Company enters into derivative contracts with multiple counterparties in order to limit its exposure to individual counterparties. The Company also has netting arrangements with each of its counterparties that allow it to offset assets and liabilities from separate derivative contracts with that counterparty.
Certain counterparties to the Company’s derivative instruments are also lenders under its revolving credit facility. The Company’s revolving credit facility and derivative instruments contain certain cross default and acceleration provisions that may require immediate payment of its derivative liabilities in certain situations.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	The Company follows the authoritative guidance for measuring fair value of assets and liabilities in its financial statements. For further information regarding the fair value hierarchy, refer to Note 7 of the Notes to the Consolidated Financial Statements in the Form 10-K.
	Non-Financial Assets and Liabilities
	The Company discloses or recognizes its non-financial assets and liabilities, such as impairments of oil and gas properties and other assets, at fair value on a nonrecurring basis. As none of the Company’s non-financial assets and liabilities were impaired as of September 30, 2014 and 2013 and no other assets or liabilities were required to be recognized at fair value on a non-recurring basis, additional disclosures were not provided.
	The estimated fair value of the Company’s asset retirement obligation at inception is determined by utilizing the income approach by applying a credit-adjusted risk-free rate, which takes into account the Company’s credit risk, the time value of money, and the current economic state, to the undiscounted expected abandonment cash flows. Given the unobservable nature of the inputs, the measurement of the asset retirement obligation was classified as Level 3 in the fair value hierarchy.
	Financial Assets and Liabilities
	The following fair value hierarchy table presents information about the Company’s financial assets and liabilities measured at fair value on a recurring basis:
	(In thousands)	Quoted Prices in			Significant Other			Significant		September 30,
		Active Markets for			Observable Inputs			Unobservable Inputs		2014
		Identical Assets			(Level 2)			(Level 3)
		(Level 1)
	Assets
	Deferred compensation plan	$	12,815		$	—		$	—	$	12,815
	Derivative contracts	—			1,578			17,867		19,445
	Total assets	$	12,815		$	1,578		$	17,867	$	32,260
	Liabilities
	Deferred compensation plan	$	30,277		$	—		$	—	$	30,277
	Derivative contracts	—			1,216			2,377		3,593
	Total liabilities	$	30,277		$	1,216		$	2,377	$	33,870
	(In thousands)	Quoted Prices in			Significant Other			Significant		December 31,
		Active Markets for			Observable Inputs			Unobservable Inputs		2013
		Identical Assets			(Level 2)			(Level 3)
		(Level 1)
	Assets
	Deferred compensation plan	$	12,507		$	—		$	—	$	12,507
	Derivative contracts	—			—			13,792		13,792
	Total assets	$	12,507		$	—		$	13,792	$	26,299
	Liabilities
	Deferred compensation plan	$	33,211		$	—		$	—	$	33,211
	Derivative contracts	—			6,983			17,702		24,685
	Total liabilities	$	33,211		$	6,983		$	17,702	$	57,896
	The Company’s investments associated with its deferred compensation plan consist of mutual funds and deferred shares of the Company’s common stock that are publicly traded and for which market prices are readily available.
	The derivative instruments were measured based on quotes from the Company’s counterparties. Such quotes have been derived using an income approach that considers various inputs including current market and contractual prices for the underlying instruments, quoted forward prices for natural gas and crude oil, basis differentials, volatility factors and interest rates, such as a LIBOR curve for a similar length of time as the derivative contract term as applicable. Estimates are verified using relevant NYMEX futures contracts and/or are compared to multiple quotes obtained from counterparties for reasonableness. The determination of the fair values presented above also incorporates a credit adjustment for non-performance risk. The Company measured the non-performance risk of its counterparties by reviewing credit default swap spreads for the various financial institutions with which it has derivative transactions, while non-performance risk of the Company is evaluated using a market credit spread provided by the Company’s bank.
	The most significant unobservable inputs relative to the Company’s Level 3 derivative contracts are basis differentials and volatility factors. An increase (decrease) in these unobservable inputs would result in an increase (decrease) in fair value, respectively. The Company does not have access to the specific assumptions used in its counterparties’ valuation models. Consequently, additional disclosures regarding significant Level 3 unobservable inputs were not provided.
	The following table sets forth a reconciliation of changes in the fair value of net financial assets (liabilities) classified as Level 3 in the fair value hierarchy:
		Nine Months Ended
		September 30,
	(In thousands)	2014			2013
	Balance at beginning of period	$	(3,910	)	$	41,159
	Total gains (losses) (realized or unrealized):
	Realized and unrealized gains (losses) included in earnings	(33,804		)	33,822
	Included in other comprehensive income	(21,068		)	24,287
	Settlements	74,271			(33,822		)
	Transfers in and/or out of level 3	—			—
	Balance at end of period	$	15,489		$	65,446
	Change in unrealized gains (losses) relating to assets and liabilities still held at the end of	$	40,467		$	—
	the period
	There were no transfers between Level 1 and Level 2 measurements for the three and nine months ended September 30, 2014 and 2013.
	Fair Value of Other Financial Instruments
	The estimated fair value of financial instruments is the amount at which the instrument could be exchanged currently between willing parties. The carrying amounts reported in the Condensed Consolidated Balance Sheet for cash and cash equivalents, accounts receivable and accounts payable approximate fair value due to the short-term maturities of these instruments.
	The Company uses available market data and valuation methodologies to estimate the fair value of debt. The fair value of long-term debt is the estimated amount the Company would have to pay a third party to assume the debt, including a credit spread for the difference between the issue rate and the period end market rate. The credit spread is the Company’s default or repayment risk. The credit spread (premium or discount) is determined by comparing the Company’s fixed-rate notes and revolving credit facility to new issuances (secured and unsecured) and secondary trades of similar size and credit statistics for both public and private debt. The fair value of all fixed-rate notes and the revolving credit facility is based on interest rates currently available to the Company. The Company’s long-term debt is valued using an income approach and classified as Level 3 in the fair value hierarchy due to the unobservable nature of the inputs.
	The carrying amounts and fair values of long-term debt are as follows:
		30-Sep-14						31-Dec-13
	(In thousands)	Carrying			Estimated Fair			Carrying		Estimated Fair
		Amount			Value			Amount		Value
	Long-term debt	$	1,612,000		$	1,697,654		$	1,147,000	$	1,224,273

Asset_Retirement_Obligation

Asset Retirement Obligation	9 Months Ended
	Sep. 30, 2014
Asset Retirement Obligation Disclosure [Abstract]	'
Asset Retirement Obligation	'
	Asset Retirement Obligation
	Activity related to the Company’s asset retirement obligation is as follows:
	(In thousands)	Nine Months Ended
		September 30, 2014
	Balance at beginning of period	$	75,853
	Liabilities incurred	4,360
	Liabilities settled	(411		)
	Liabilities divested	(899		)
	Change in estimate	33,810
	Accretion expense	3,528
	Balance at end of period	$	116,241
	The change in estimate during 2014 is attributable to an increase in costs of materials and services. The increase in cost of materials and services is primarily due to more rigorous plugging and abandonment techniques associated with the Company's horizontal wells in certain areas of its operations and the lack of availability of service providers in areas with minimal activity.
	As of both September 30, 2014 and December 31, 2013, approximately $2.0 million is included in accrued liabilities in the Condensed Consolidated Balance Sheet, which represents the current portion of the Company’s asset retirement obligation.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Contractual Obligations
	The Company has various contractual obligations in the normal course of its operations. Except for certain new and amended transportation agreements described below, there have been no material changes to the Company’s contractual obligations described under “Transportation and Gathering Agreements”, “Drilling Rig Commitments” and “Lease Commitments” as disclosed in Note 9 in the Notes to Consolidated Financial Statements included in the Form 10-K.
	Transportation and Gathering Agreements
	During the first nine months of 2014, the Company entered into or amended certain natural gas transportation agreements associated with the Company’s production in Pennsylvania. These agreements increased the Company’s future aggregate obligations under its transportation commitments by approximately $230.5 million over the next 13 years compared to those amounts disclosed in Note 9 in the Notes to Consolidated Financial Statements included in the Form 10-K.
	Legal Matters
	The Company is a defendant in various legal proceedings arising in the normal course of business. All known liabilities are accrued when management determines they are probable based on its best estimate of the potential loss. While the outcome and impact of these legal proceedings on the Company cannot be predicted with certainty, management believes that the resolution of these proceedings will not have a material effect on the Company’s financial position, results of operations or cash flows.
	Contingency Reserves
	When deemed necessary, the Company establishes reserves for certain legal proceedings. The establishment of a reserve is based on an estimation process that includes the advice of legal counsel and subjective judgment of management. While management believes these reserves to be adequate, it is reasonably possible that the Company could incur additional losses with respect to those matters in which reserves have been established. The Company believes that any such amount above the amounts accrued is not material to the Condensed Consolidated Financial Statements. Future changes in facts and circumstances not currently foreseeable could result in the actual liability exceeding the estimated ranges of loss and amounts accrued.

Postretirement_Benefits

Postretirement Benefits	9 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Postretirement Benefits	'
	Postretirement Benefits
	The components of net periodic benefit costs, included in general and administrative expense in the Condensed Consolidated Statement of Operations, were as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
	(In thousands)	2014		2013		2014		2013
	Service cost	$	456	$	455	$	1,368	$	1,285
	Interest cost	407		355		1,221		1,145
	Amortization of net loss	—		116		—		525
		$	863	$	926	$	2,589	$	2,955
	The guidance for retirement benefits provides that the net actuarial loss is not amortized if it is less than 10% of the postretirement obligation. Accordingly, the Company does not expect to amortize its net actuarial loss from accumulated other comprehensive income (loss) during 2014.

Stockbased_Compensation

Stock-based Compensation	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-based Compensation	'
	Stock-based Compensation
	General
	Stock-based compensation expense during the first nine months of 2014 and 2013 was $15.1 million and $41.0 million, respectively, and is included in general and administrative expense in the Condensed Consolidated Statement of Operations. Stock-based compensation expense in the third quarter of 2014 and 2013 was $5.7 million and $12.2 million, respectively.
	During the first nine months of 2014 and 2013, the Company realized a $6.0 million and $9.3 million tax benefit, respectively, related to the federal tax deduction in excess of book compensation cost for employee stock-based compensation. The Company is able to recognize this tax benefit only to the extent it reduces the Company’s income taxes payable.
	Refer to Note 13 of the Notes to the Consolidated Financial Statements in the Form 10-K for further description of the various types of stock-based compensation awards and the applicable award terms.
	Restricted Stock Awards
	During the first nine months of 2014, 46,000 restricted stock awards were granted to employees with a weighted-average grant date per share value of $34.96. The fair value of restricted stock grants is based on the average of the high and low stock price on the grant date. The Company used an annual forfeiture rate assumption of 5.0% for purposes of recognizing stock-based compensation expense for restricted stock awards.
	Restricted Stock Units
	During the first nine months of 2014, 35,870 restricted stock units were granted to non-employee directors of the Company with a weighted-average grant date per unit value of $38.73. The fair value of these units is measured based on the average of the high and low stock price on grant date and compensation expense is recorded immediately. These units immediately vest and are issued when the director ceases to be a director of the Company.
	Performance Share Awards
	The performance period for the awards granted in 2014 commenced on January 1, 2014 and ends on December 31, 2016.  The Company used an annual forfeiture rate assumption ranging from 0% to 5% for purposes of recognizing stock-based compensation expense for its performance share awards.
	Performance Share Awards Based on Internal Performance Metrics
	The fair value of performance award grants based on internal performance metrics is based on the average of the high and low stock price on the grant date and represents the right to receive up to 100% of the award in shares of common stock.
	Employee Performance Share Awards. During the first nine months of 2014, 241,130 Employee Performance Share Awards were granted at a grant date per share value of $39.43. The performance metrics are set by the Company’s Compensation Committee and are based on the Company’s average production, average finding costs and average reserve replacement over a three-year performance period. Based on the Company’s probability assessment at September 30, 2014, it is considered probable that the criteria for these awards will be met.
	Hybrid Performance Share Awards. During the first nine months of 2014, 123,257 Hybrid Performance Share Awards were granted at a grant date per share value of $39.43. The 2014 awards vest 25% on each of the first and second anniversary dates and 50% on the third anniversary, provided that the Company has $100 million or more of operating cash flow for the year preceding the vesting date, as set by the Company’s Compensation Committee. If the Company does not meet the performance metric for the applicable period, then the portion of the performance shares that would have been issued on that anniversary date will be forfeited. Based on the Company’s probability assessment at September 30, 2014, it is considered probable that the criteria for these awards will be met.
	Performance Share Awards Based on Market Conditions
	These awards have both an equity and liability component, with the right to receive up to the first 100% of the award in shares of common stock and the right to receive up to an additional 100% of the value of the award in excess of the equity component in cash. The Company calculates the fair value of these awards using a Monte Carlo simulation model. The equity component of these awards is valued on the grant date and is not marked to market, while the liability component of the awards is valued as of the end of each reporting period on a mark-to-market basis.
	TSR Performance Share Awards.  During the first nine months of 2014, 184,885 TSR Performance Share Awards were granted and are earned, or not earned, based on the comparative performance of the Company’s common stock measured against fourteen other companies in the Company’s peer group over a three-year performance period.
	The following assumptions were used to determine the grant date fair value of the equity component (February 20, 2014) and the period-end fair value of the liability component of the TSR Performance Share Awards:
			Grant Date			30-Sep-14
	Fair value per performance share award		$	32.04		$7.19 - $25.22
	Assumptions:
	Stock price volatility		41.3		%	27.5% - 120.4%
	Risk free rate of return		0.7		%	0.02% - 0.7%
	Expected dividend yield		0.2		%	0.2	%
	Supplemental Employee Incentive Plan
	The Company recognized stock-based compensation expense of $0.2 million and $4.1 million for the three months ended September 30, 2014 and 2013, respectively, and $3.3 million and $9.2 million for the nine months ended September 30, 2014 and 2013, respectively, related to the Company’s Supplemental Employee Incentive Plans, which is included in general and administrative expense in the Condensed Consolidated Statement of Operations. In August 2014, the Company paid $13.0 million associated with amounts that were previously deferred in accordance with the Company’s Supplemental Employee Incentive Plan III. Refer to Note 13 of the Notes to the Consolidated Financial Statements in the Form 10-K for additional information on the provisions of the Plan.
	The following assumptions were used to determine the period-end fair value of the Supplemental Employee Incentive Plan IV liability using a Monte Carlo model:
		September 30,
		2014
	Stock price volatility	33.9	%
	Risk free rate of return	1	%
	Annual salary increase rate	4	%
	Annual turnover rate	4.6	%

Earnings_per_Common_Share

Earnings per Common Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings per Common Share	'
	Earnings per Common Share
	Basic EPS is computed by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted EPS is similarly calculated except that the common shares outstanding for the period is increased using the treasury stock method to reflect the potential dilution that could occur if outstanding stock appreciation rights were exercised and stock awards were vested at the end of the applicable period.
		Three Months Ended		Nine Months Ended
		September 30,		September 30,
	(In thousands)	2014	2013	2014	2013
	Weighted-average shares - basic	416,173	420,986	416,785	420,664
	Dilution effect of stock appreciation rights and stock awards at end of period	1,920	2,467	1,683	2,160
	Weighted-average shares - diluted	418,093	423,453	418,468	422,824
	Weighted-average stock awards and shares excluded from diluted earnings per share due to the anti-dilutive effect	—	1	461	3

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Accumulated Other Comprehensive Income (Loss)	'
	Accumulated Other Comprehensive Income (Loss)
	Changes in accumulated other comprehensive income (loss) by component, net of tax, were as follows:
	(In thousands)	Net Gain			Postretirement			Total
		(Loss) on			Benefits
		Cash Flow
		Hedges
	Balance at December 31, 2013	$	(6,551	)	$	(1,810	)	$	(8,361	)
	Other comprehensive income before reclassifications	(80,175		)	—			(80,175		)
	Amounts reclassified from accumulated other comprehensive income	69,337			—			69,337
	Net current-period other comprehensive income	(10,838		)	—			(10,838		)
	Balance at September 30, 2014	$	(17,389	)	$	(1,810	)	$	(19,199	)
	Amounts reclassified from accumulated other comprehensive income (loss) into the Condensed Consolidated Statement of Operations were as follows:
		Three Months Ended						Nine Months Ended						Affected Line Item in the Condensed
		September 30,						September 30,
	(In thousands)	2014			2013			2014			2013			Consolidated Statement of Operations
	Net gain (loss) on cash flow hedges
	Commodity contracts	$	(21,427	)	$	20,766		$	(114,304	)	$	33,822		Natural gas revenues
	Commodity contracts	(130		)	(1,082		)	(984		)	3,054			Crude oil and condensate revenues
	Postretirement benefits
	Amortization of net loss	—			(116		)	—			(525		)	General and administrative expense
		(21,557		)	19,568			(115,288		)	36,351			Total before tax
		8,592			(7,696		)	45,951			(14,298		)	Tax benefit (expense)
	Total reclassifications for the period	$	(12,965	)	$	11,872		$	(69,337	)	$	22,053		Net of tax

ADDITIONAL_BALANCE_SHEET_INFOR

ADDITIONAL BALANCE SHEET INFORMATION	9 Months Ended
	Sep. 30, 2014
Balance Sheet Related Disclosures [Abstract]	'
ADDITIONAL BALANCE SHEET INFORMATION	'
	ADDITIONAL BALANCE SHEET INFORMATION
	Certain balance sheet amounts are comprised of the following:
	(In thousands)	September 30,			December 31,
		2014			2013
	Accounts receivable, net
	Trade accounts	$	190,328		$	215,361
	Joint interest billing	1,493			7,261
	Income taxes receivable	—			922
	Other accounts	439			746
		192,260			224,290
	Allowance for doubtful accounts	(990		)	(1,814		)
		$	191,270		$	222,476
	Inventories
	Natural gas in storage	$	3,596		$	9,056
	Tubular goods and well equipment	10,080			8,396
	Other accounts	55			16
		$	13,731		$	17,468
	Other current assets
	Prepaid balances and other	$	2,730		$	2,587
	Derivative instruments	16,503			3,019
		$	19,233		$	5,606
	Other assets
	Deferred compensation plan	$	12,815		$	12,507
	Debt issuance cost	18,725			16,476
	Other accounts	70			79
		$	31,610		$	29,062
	Accounts payable
	Trade accounts	$	53,938		$	26,023
	Natural gas purchases	6,813			2,052
	Royalty and other owners	102,933			79,150
	Accrued capital costs	185,525			146,899
	Taxes other than income	12,906			13,677
	Drilling advances	89			14,093
	Other accounts	17,583			6,907
		$	379,787		$	288,801
	Accrued liabilities
	Employee benefits	$	18,798		$	43,599
	Taxes other than income	10,459			6,894
	Interest payable	12,833			20,211
	Derivative instruments	102			13,912
	Other accounts	2,651			2,897
		$	44,843		$	87,513
	Other liabilities
	Deferred compensation plan	$	30,277		$	33,211
	Derivative instruments	549			—
	Other accounts	6,963			13,043
		$	37,789		$	46,254

CAPITAL_STOCK

CAPITAL STOCK	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
CAPITAL STOCK	'
	CAPITAL STOCK
	Incentive Plans
	On May 1, 2014, the Company’s shareholders approved the 2014 Incentive Plan, which replaced the 2004 Incentive Plan that expired on April 29, 2014. Under the 2014 Incentive Plan, incentive and non-statutory stock options, stock appreciation rights (SARs), stock awards, cash awards and performance awards may be granted to key employees, consultants and officers of the Company. Non-employee directors of the Company may be granted discretionary awards under the 2014 Incentive Plan consisting of stock options or stock awards. A total of 18 million shares of common stock may be issued under the 2014 Incentive Plan. Under the 2014 Incentive Plan, no more than 10 million shares may be issued pursuant to incentive stock options. No additional awards may be granted under the 2014 Incentive Plan on or after May 1, 2024.
	No additional awards will be granted under any of the Company’s prior plans, including the 2004 Incentive Plan.  Awards outstanding under the 2004 Incentive Plan will remain outstanding in accordance with their original terms and conditions.
	Increase in Authorized Shares
	In May 2014, the Company’s shareholders approved an increase in the authorized number of shares of common stock from 480 million to 960 million shares.
	Treasury Stock
	In August 1998, the Board of Directors authorized a share repurchase program under which the Company may purchase shares of common stock in the open market or in negotiated transactions. The timing and amount of any stock purchases are determined at the discretion of management. The Company may use the repurchased shares to fund stock compensation programs currently in existence, or for other corporate purposes. All purchases executed to date have been through open market transactions. There is no expiration date associated with the authorization to repurchase common stock of the Company.
	During the first nine months of 2014, the Company repurchased 4.0 million shares for a total cost of $130.8 million. Since the authorization date, the Company has repurchased 29.6 million shares of the 40.0 million total shares authorized for a total cost of approximately $380.3 million, of which 20.0 million shares have been retired. No treasury shares have been delivered or sold by the Company subsequent to the repurchase. As of September 30, 2014, 9.6 million shares were held as treasury stock.

Financial_Statement_Presentati1

Financial Statement Presentation (Policies)	9 Months Ended
	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. The guidance applies prospectively to new disposals and new classifications of disposal groups as held for sale after the effective date. The guidance is effective for interim and annual periods beginning on or after December 15, 2014. The Company does not expect the adoption of this guidance to have a material impact on its financial position, results of operations or cash flows.
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, as a new Topic, Accounting Standards Codification Topic 606. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle of the guidance is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU is effective beginning in fiscal year 2017 and can be adopted either retrospectively or as a cumulative-effect adjustment as of the date of adoption. The Company is currently evaluating the effect that adopting this guidance will have on its financial position, results of operations or cash flows.
	In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern, as a new Sub-topic, Accounting Standards Codification Sub-topic 205.40. The new going concern standard codifies in generally accepted accounting principles (GAAP) management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. This ASU is effective for interim and annual periods beginning on or after December 15, 2016 and early adoption is permitted. The Company does not expect the adoption of this guidance to have a material impact on its financial position or results of operations.

Properties_and_Equipment_Net_T

Properties and Equipment, Net (Tables)	9 Months Ended
	Sep. 30, 2014
Property, Plant and Equipment [Abstract]	'
Schedule of properties and equipment, net	'
	Properties and equipment, net are comprised of the following:
	(In thousands)	September 30,			December 31,
		2014			2013
	Proved oil and gas properties	$	7,405,851		$	6,362,570
	Unproved oil and gas properties	354,882			375,428
	Gathering and pipeline systems	240,705			239,958
	Land, buildings and other equipment	105,143			94,243
		8,106,581			7,072,199
	Accumulated depreciation, depletion and amortization	(2,976,368		)	(2,525,972		)
		$	5,130,213		$	4,546,227

Debt_and_Credit_Agreements_Tab

Debt and Credit Agreements (Tables)	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Debt and credit agreement components	'
	The Company’s debt and credit agreements consisted of the following:
	(In thousands)	September 30,			December 31,
		2014			2013
	Long-Term Debt
	7.33% weighted-average fixed rate notes	$	20,000		$	20,000
	6.51% weighted-average fixed rate notes	425,000			425,000
	9.78% notes	67,000			67,000
	5.58% weighted-average fixed rate notes	175,000			175,000
	3.65% weighted-average fixed rate notes	925,000			—
	Revolving credit facility	—			460,000
		$	1,612,000		$	1,147,000
Bullet maturities of senior debt	'
	The notes have bullet maturities and were issued in three separate tranches as follows:
		Principal		Term	Maturity Date		Coupon
	Tranche 1	$100,000,000		7 years	Sep-21		3.24	%
	Tranche 2	$575,000,000		10 years	Sep-24		3.67	%
	Tranche 3	$250,000,000		12 years	Sep-26		3.77	%

Derivative_Instruments_and_Hed1

Derivative Instruments and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Outstanding commodity derivatives	'
	As of September 30, 2014, the Company had the following outstanding commodity derivatives:
									Collars											Swaps
									Floor							Ceiling
	Type of Contract		Volume				Contract Period		Range			Weighted-Average				Range		Weighted- Average		Weighted- Average
	Natural gas		84.9		Bcf		Oct. 2014 - Dec. 2014		$3.60-$4.37			$	4.13			$4.22-$4.80		$	4.51
	Natural gas		26.8		Bcf		Oct. 2014 - Dec. 2014													$	4.05
	Natural gas		35.5		Bcf		Jan. 2015 - Dec. 2015		—			$	3.86			$4.36-$4.43		$	4.4
	Natural gas		35.5		Bcf		Jan. 2015 - Dec. 2015													$	4.12
	Crude oil		184		Mbbl		Oct. 2014 - Dec. 2014													$	97
Effect of derivative instruments on the condensed consolidated balance sheet	'
	Effect of Derivative Instruments on the Condensed Consolidated Balance Sheet
					Fair Values of Derivative Instruments
					Derivative Assets								Derivative Liabilities
	(In thousands)		Balance Sheet Location		September 30,				December 31,				September 30,				December 31,
					2014				2013				2014				2013
	Derivatives Designated as Hedges
	Commodity contracts		Other current assets		$	—			$	3,019			$	—			$	—
	Commodity contracts		Accrued liabilities		—				—				—				13,912
	Derivatives Not Designated as Hedges
	Commodity contracts		Other current assets		16,503				—				—				—
	Commodity contracts		Accrued liabilities		—				—				102				—
	Commodity contracts		Other liabilities		—				—				549				—
					$	16,503			$	3,019			$	651			$	13,912
Schedule of offsetting of derivative assets and liabilities in the condensed consolidated balance sheet	'
	Offsetting of Derivative Assets and Liabilities in the Condensed Consolidated Balance Sheet
	(In thousands)		September 30,				December 31,
			2014				2013
	Derivative Assets
	Gross amounts of recognized assets		$	19,445			$	13,792
	Gross amounts offset in the statement of financial position		(2,942		)		(10,773		)
	Net amounts of assets presented in the statement of financial position		16,503				3,019
	Gross amounts of financial instruments not offset in the statement of financial position		238				373
	Net amount		$	16,741			$	3,392
	Derivative Liabilities
	Gross amounts of recognized liabilities		$	3,593			$	24,685
	Gross amounts offset in the statement of financial position		(2,942		)		(10,773		)
	Net amounts of liabilities presented in the statement of financial position		651				13,912
	Gross amounts of financial instruments not offset in the statement of financial position		—				—
	Net amount		$	651			$	13,912
Amount of gain (loss) recognized in accumulated other comprehensive income (loss) on derivatives	'
	The amount of gain (loss) recognized in accumulated other comprehensive income (loss) on derivatives (effective portion) is as follows:
			Three Months Ended								Nine Months Ended
			September 30,								September 30,
	(In thousands)		2014				2013				2014				2013
	Commodity contracts		$	—			$	(2,384	)		$	(133,310	)		$	51,783
Amount of gain (loss) reclassified from accumulated other comprehensive income (loss)	'
	The amount of gain (loss) reclassified from accumulated other comprehensive income (loss) into income (effective portion) is as follows:
			Three Months Ended								Nine Months Ended
			September 30,								September 30,
	(In thousands)		2014 (1)				2013				2014 (1)				2013
	Natural gas revenues		$	(21,427	)		$	20,766			$	(114,304	)		$	33,822
	Crude oil and condensate revenues		(130		)		(1,082		)		(984		)		3,054
			$	(21,557	)		$	19,684			$	(115,288	)		$	36,876
	-1	The Company ceased hedge accounting effective April 1, 2014. For the three and nine months ended September 30, 2014, a loss of approximately $21.6 million and $44.5 million, respectively, were reclassified into income. These amounts were previously frozen in accumulated other comprehensive income (loss).
Effect of derivatives not designated as hedging instruments on the condensed consolidated statement of operations	'
	The amount of gain (loss) recognized in the Condensed Consolidated Statement of Operations on derivative instruments is as follows:
			Three Months Ended								Nine Months Ended
			September 30,								September 30,
	(In thousands)		2014				2013				2014				2013
	Derivatives Designated as Hedges
	Realized
	Natural gas		$	—			$	20,766			$	(70,557	)		$	33,822
	Crude oil and condensate		—				(1,082		)		(218		)		3,054
			$	—			$	19,684			$	(70,775	)		$	36,876
	Derivatives Not Designated as Hedges
	Realized
	Natural gas		$	(21,427	)		$	—			$	(43,747	)		$	—
	Crude oil and condensate		(130		)		—				(766		)		—
	Gain (loss) on derivative instruments		40,073				—				24,811				—
	Unrealized
	Gain (loss) on derivative instruments		31,833				—				44,766				—
			$	50,349			$	—			$	25,064			$	—
			$	50,349			$	19,684			$	(45,711	)		$	36,876

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Financial assets and liabilities measured at fair value on a recurring basis	'
	The following fair value hierarchy table presents information about the Company’s financial assets and liabilities measured at fair value on a recurring basis:
	(In thousands)	Quoted Prices in			Significant Other			Significant		September 30,
		Active Markets for			Observable Inputs			Unobservable Inputs		2014
		Identical Assets			(Level 2)			(Level 3)
		(Level 1)
	Assets
	Deferred compensation plan	$	12,815		$	—		$	—	$	12,815
	Derivative contracts	—			1,578			17,867		19,445
	Total assets	$	12,815		$	1,578		$	17,867	$	32,260
	Liabilities
	Deferred compensation plan	$	30,277		$	—		$	—	$	30,277
	Derivative contracts	—			1,216			2,377		3,593
	Total liabilities	$	30,277		$	1,216		$	2,377	$	33,870
	(In thousands)	Quoted Prices in			Significant Other			Significant		December 31,
		Active Markets for			Observable Inputs			Unobservable Inputs		2013
		Identical Assets			(Level 2)			(Level 3)
		(Level 1)
	Assets
	Deferred compensation plan	$	12,507		$	—		$	—	$	12,507
	Derivative contracts	—			—			13,792		13,792
	Total assets	$	12,507		$	—		$	13,792	$	26,299
	Liabilities
	Deferred compensation plan	$	33,211		$	—		$	—	$	33,211
	Derivative contracts	—			6,983			17,702		24,685
	Total liabilities	$	33,211		$	6,983		$	17,702	$	57,896
Fair value of net financial assets and liabilities classified as level 3	'
	The following table sets forth a reconciliation of changes in the fair value of net financial assets (liabilities) classified as Level 3 in the fair value hierarchy:
		Nine Months Ended
		September 30,
	(In thousands)	2014			2013
	Balance at beginning of period	$	(3,910	)	$	41,159
	Total gains (losses) (realized or unrealized):
	Realized and unrealized gains (losses) included in earnings	(33,804		)	33,822
	Included in other comprehensive income	(21,068		)	24,287
	Settlements	74,271			(33,822		)
	Transfers in and/or out of level 3	—			—
	Balance at end of period	$	15,489		$	65,446
	Change in unrealized gains (losses) relating to assets and liabilities still held at the end of	$	40,467		$	—
	the period
Carrying amounts and fair values of long-term debt	'
	The carrying amounts and fair values of long-term debt are as follows:
		30-Sep-14						31-Dec-13
	(In thousands)	Carrying			Estimated Fair			Carrying		Estimated Fair
		Amount			Value			Amount		Value
	Long-term debt	$	1,612,000		$	1,697,654		$	1,147,000	$	1,224,273

Asset_Retirement_Obligation_Ta

Asset Retirement Obligation (Tables)	9 Months Ended
	Sep. 30, 2014
Asset Retirement Obligation Disclosure [Abstract]	'
Asset Retirement Obligation	'
	Activity related to the Company’s asset retirement obligation is as follows:
	(In thousands)	Nine Months Ended
		September 30, 2014
	Balance at beginning of period	$	75,853
	Liabilities incurred	4,360
	Liabilities settled	(411		)
	Liabilities divested	(899		)
	Change in estimate	33,810
	Accretion expense	3,528
	Balance at end of period	$	116,241

Postretirement_Benefits_Tables

Postretirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Components of net periodic benefit costs	'
	The components of net periodic benefit costs, included in general and administrative expense in the Condensed Consolidated Statement of Operations, were as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
	(In thousands)	2014		2013		2014		2013
	Service cost	$	456	$	455	$	1,368	$	1,285
	Interest cost	407		355		1,221		1,145
	Amortization of net loss	—		116		—		525
		$	863	$	926	$	2,589	$	2,955

Stockbased_Compensation_Tables

Stock-based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
Supplemental Employee Incentive Plan IV	'
Stock-Based Compensation arrangements	'
Schedule of Value per Share and Assumptions Used	'
	The following assumptions were used to determine the period-end fair value of the Supplemental Employee Incentive Plan IV liability using a Monte Carlo model:
		September 30,
		2014
	Stock price volatility	33.9	%
	Risk free rate of return	1	%
	Annual salary increase rate	4	%
	Annual turnover rate	4.6	%
TSR Performance Share Awards	'
Stock-Based Compensation arrangements	'
Schedule of Value per Share and Assumptions Used	'
	The following assumptions were used to determine the grant date fair value of the equity component (February 20, 2014) and the period-end fair value of the liability component of the TSR Performance Share Awards:
			Grant Date			30-Sep-14
	Fair value per performance share award		$	32.04		$7.19 - $25.22
	Assumptions:
	Stock price volatility		41.3		%	27.5% - 120.4%
	Risk free rate of return		0.7		%	0.02% - 0.7%
	Expected dividend yield		0.2		%	0.2	%

Earnings_per_Common_Share_Tabl

Earnings per Common Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Calculation of basic and diluted weighted-average shares outstanding	'
		Three Months Ended		Nine Months Ended
		September 30,		September 30,
	(In thousands)	2014	2013	2014	2013
	Weighted-average shares - basic	416,173	420,986	416,785	420,664
	Dilution effect of stock appreciation rights and stock awards at end of period	1,920	2,467	1,683	2,160
	Weighted-average shares - diluted	418,093	423,453	418,468	422,824
	Weighted-average stock awards and shares excluded from diluted earnings per share due to the anti-dilutive effect	—	1	461	3

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Changes in accumulated other comprehensive income (loss) by component, net of tax	'
	Changes in accumulated other comprehensive income (loss) by component, net of tax, were as follows:
	(In thousands)	Net Gain			Postretirement			Total
		(Loss) on			Benefits
		Cash Flow
		Hedges
	Balance at December 31, 2013	$	(6,551	)	$	(1,810	)	$	(8,361	)
	Other comprehensive income before reclassifications	(80,175		)	—			(80,175		)
	Amounts reclassified from accumulated other comprehensive income	69,337			—			69,337
	Net current-period other comprehensive income	(10,838		)	—			(10,838		)
	Balance at September 30, 2014	$	(17,389	)	$	(1,810	)	$	(19,199	)
Schedule of amount reclassified from accumulated other comprehensive income (loss) into the Condensed Consolidated Statement of Operations	'
	Amounts reclassified from accumulated other comprehensive income (loss) into the Condensed Consolidated Statement of Operations were as follows:
		Three Months Ended						Nine Months Ended						Affected Line Item in the Condensed
		September 30,						September 30,
	(In thousands)	2014			2013			2014			2013			Consolidated Statement of Operations
	Net gain (loss) on cash flow hedges
	Commodity contracts	$	(21,427	)	$	20,766		$	(114,304	)	$	33,822		Natural gas revenues
	Commodity contracts	(130		)	(1,082		)	(984		)	3,054			Crude oil and condensate revenues
	Postretirement benefits
	Amortization of net loss	—			(116		)	—			(525		)	General and administrative expense
		(21,557		)	19,568			(115,288		)	36,351			Total before tax
		8,592			(7,696		)	45,951			(14,298		)	Tax benefit (expense)
	Total reclassifications for the period	$	(12,965	)	$	11,872		$	(69,337	)	$	22,053		Net of tax

ADDITIONAL_BALANCE_SHEET_INFOR1

ADDITIONAL BALANCE SHEET INFORMATION (Tables)	9 Months Ended
	Sep. 30, 2014
Balance Sheet Related Disclosures [Abstract]	'
Additional Balance Sheet Information	'
	Certain balance sheet amounts are comprised of the following:
	(In thousands)	September 30,			December 31,
		2014			2013
	Accounts receivable, net
	Trade accounts	$	190,328		$	215,361
	Joint interest billing	1,493			7,261
	Income taxes receivable	—			922
	Other accounts	439			746
		192,260			224,290
	Allowance for doubtful accounts	(990		)	(1,814		)
		$	191,270		$	222,476
	Inventories
	Natural gas in storage	$	3,596		$	9,056
	Tubular goods and well equipment	10,080			8,396
	Other accounts	55			16
		$	13,731		$	17,468
	Other current assets
	Prepaid balances and other	$	2,730		$	2,587
	Derivative instruments	16,503			3,019
		$	19,233		$	5,606
	Other assets
	Deferred compensation plan	$	12,815		$	12,507
	Debt issuance cost	18,725			16,476
	Other accounts	70			79
		$	31,610		$	29,062
	Accounts payable
	Trade accounts	$	53,938		$	26,023
	Natural gas purchases	6,813			2,052
	Royalty and other owners	102,933			79,150
	Accrued capital costs	185,525			146,899
	Taxes other than income	12,906			13,677
	Drilling advances	89			14,093
	Other accounts	17,583			6,907
		$	379,787		$	288,801
	Accrued liabilities
	Employee benefits	$	18,798		$	43,599
	Taxes other than income	10,459			6,894
	Interest payable	12,833			20,211
	Derivative instruments	102			13,912
	Other accounts	2,651			2,897
		$	44,843		$	87,513
	Other liabilities
	Deferred compensation plan	$	30,277		$	33,211
	Derivative instruments	549			—
	Other accounts	6,963			13,043
		$	37,789		$	46,254

Properties_and_Equipment_Net_D

Properties and Equipment, Net (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Abstract]	'	'
Proved oil and gas properties	$7,405,851	$6,362,570
Unproved oil and gas properties	354,882	375,428
Gathering and pipeline systems	240,705	239,958
Land, buildings and other equipment	105,143	94,243
Properties and equipment, gross, total	8,106,581	7,072,199
Accumulated depreciation, depletion and amortization	-2,976,368	-2,525,972
Properties and equipment, net	$5,130,213	$4,546,227

Properties_and_Equipment_Net_D1

Properties and Equipment, Net (Details 2) (USD $)	9 Months Ended				1 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014	Oct. 31, 2014	Oct. 31, 2014
				Undeveloped oil and gas properties	Subsequent event	Eagle Ford Shale in South Texas
					Undeveloped oil and gas properties	Subsequent event
						Proved and Unproved oil and gas properties
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'
Minimum term of capitalization of exploratory well costs	'1 year	'	'	'	'	'
Acquisition cost of proved and unproved oil and gas properties	'	'	'	'	'	$210,000,000
Total cash consideration paid for proved and unproved oil and gas properties as of closing date	'	'	'	'	'	186,200,000
Sale of undeveloped oil and gas properties	3,913,000	15,174,000	'	'	44,300,000	'
Total cash consideration received from sale of undeveloped oil and gas properties as of closing date	'	'	'	'	39,900,000	'
Net book value of assets held for sale	$5,130,213,000	'	$4,546,227,000	$21,500,000	'	'

Equity_Method_Investments_Deta

Equity Method Investments (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Feb. 28, 2014
Equity Method Investment	'	'
Contributions made to equity method investments	$28.80	'
Ownership interest (as a percent)	'	20.00%
Amount of investment, new pipeline	'	149
Minimum	'	'
Equity Method Investment	'	'
Number of years of investment expected, new pipeline to occur	'3 years	'
Maximum	'	'
Equity Method Investment	'	'
Number of years of investment expected, new pipeline to occur	'4 years	'
Central Pipeline	'	'
Equity Method Investment	'	'
Length of pipeline to be constructed (in miles)	177	'
Central Pipeline | Transco	'	'
Equity Method Investment	'	'
Proportionate ownership interest, new pipeline (as a percent)	'	61.00%
Constitution Pipeline Company, LLC [Member]	'	'
Equity Method Investment	'	'
Contributions made to equity method investments	26.6	'
Meade Pipeline Co LLC	'	'
Equity Method Investment	'	'
Contributions made to equity method investments	$2.20	'
Meade Pipeline Co LLC | Central Pipeline	'	'
Equity Method Investment	'	'
Proportionate ownership interest, new pipeline (as a percent)	'	39.00%

Debt_and_Credit_Agreements_Det

Debt and Credit Agreements (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt	'	'
Long-term debt	$1,612,000	$1,147,000
7.33% weighted-average fixed rate notes	'	'
Debt	'	'
Long-term debt	20,000	20,000
6.51% weighted-average fixed rate notes	'	'
Debt	'	'
Long-term debt	425,000	425,000
9.78% notes	'	'
Debt	'	'
Long-term debt	67,000	67,000
5.58% weighted-average fixed rate notes	'	'
Debt	'	'
Long-term debt	175,000	175,000
3.65% weighted-average fixed rate notes	'	'
Debt	'	'
Long-term debt	925,000	0
Revolving credit facility	'	'
Debt	'	'
Long-term debt	$0	$460,000

Debt_and_Credit_Agreements_Det1

Debt and Credit Agreements (Details 2) (Revolving credit facility, USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Apr. 15, 2014
Revolving credit facility	'	'	'	'	'
Debt	'	'	'	'	'
Borrowing base prior to approval	'	'	'	'	$2,300,000,000
Borrowing base	'	'	'	'	3,100,000,000
Line of credit	1,400,000,000	'	1,400,000,000	'	'
Availability under the credit facility	$1,400,000,000	'	$1,400,000,000	'	'
Weighted-average effective interest rate	2.20%	2.20%	2.20%	2.30%	'

Debt_and_Credit_Agreements_Det2

Debt and Credit Agreements (Details 3) (Senior unsecured fixed-rate notes, USD $)	1 Months Ended	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2014
	Investor
Debt	'	'
Number of investors in private placement	24	'
Principal	$925,000,000	$925,000,000
Weighted-average interest rate (as a percent)	3.65%	3.65%
Asset Coverage Ratio, Minimum	1.75	1.75
Annual Coverage Ratio, Minimum	'	2.8
Tranche 1	'	'
Debt	'	'
Principal	100,000,000	100,000,000
Term	'7 years	'
Coupon	3.24%	3.24%
Tranche 2	'	'
Debt	'	'
Principal	575,000,000	575,000,000
Term	'10 years	'
Coupon	3.67%	3.67%
Tranche 3	'	'
Debt	'	'
Principal	$250,000,000	$250,000,000
Term	'12 years	'
Coupon	3.77%	3.77%

Debit_and_Credit_Agreements_Pa

Debit and Credit Agreements (Parenthetical) (Details)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

7.33% weighted-average fixed rate notes

7.33% weighted-average fixed rate notes

6.51% weighted-average fixed rate notes

6.51% weighted-average fixed rate notes

9.78% notes

9.78% notes

5.58% weighted-average fixed rate notes

5.58% weighted-average fixed rate notes

3.65% weighted-average fixed rate notes

3.65% weighted-average fixed rate notes

Revolving credit facility

Revolving credit facility

Revolving credit facility

Revolving credit facility

Debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt, weighted average interest rate

7.33%

7.33%

6.51%

6.51%

'

'

5.58%

5.58%

3.65%

3.65%

'

'

'

'

Long-term debt, interest rate, stated percentage

'

'

'

'

9.78%

9.78%

'

'

'

'

'

'

'

'

Weighted-average effective interest rate

'

'

'

'

'

'

'

'

'

'

2.20%

2.20%

2.20%

2.30%

Derivative_Instruments_and_Hed2

Derivative Instruments and Hedging Activities (Details) (USD $)

3 Months Ended

9 Months Ended

6 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Apr. 01, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Derivatives Designated as Hedges

Derivatives Designated as Hedges

Derivatives Designated as Hedges

Derivatives Designated as Hedges

Derivatives Designated as Hedges

Derivatives Designated as Hedges

Derivatives Designated as Hedges

Derivatives Designated as Hedges

Derivatives Designated as Hedges

Derivatives Designated as Hedges

Derivatives Designated as Hedges

Natural Gas and Oil Revenue [Member]

Natural Gas Collars with contract period of Jul. 2014 - Dec. 2014

Natural Gas Collars with contract period of Jul. 2014 - Dec. 2014

Natural Gas Collars with contract period of Jul. 2014 - Dec. 2014

Natural Gas Collars with contract period of Jul. 2014 - Dec. 2014

Natural Gas Swaps with contract period of Jul. 2014 - Dec. 2014

Natural Gas Collars with contract period of January 2015 to December 2015

Natural Gas Collars with contract period of January 2015 to December 2015

Natural Gas Collars with contract period of January 2015 to December 2015

Natural Gas Collars with contract period of January 2015 to December 2015

Natural Gas Swaps with contract period of January 2015 to December 2015

Crude Oil Swaps with contract period of Jul. 2014 - Dec. 2014

MMcf

Minimum

Maximum

Weighted Average

Weighted Average

MMcf

Minimum

Maximum

Weighted Average

Weighted Average

Weighted Average

MMcf

MMcf

MBbls

Derivative disclosures

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized losses included in accumulated other comprehensive income and will reclassified into natural gas and crude oil revenues , pre-tax

'

'

'

'

$73,400,000

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized losses included in accumulated other comprehensive income and will reclassified into natural gas and crude oil revenues , net of tax

'

'

'

'

44,200,000

'

'

'

'

'

'

'

'

'

'

'

'

Reclassification adjustment for settled cash flow hedge contracts(1)

12,965,000

[1]

-11,942,000

[1]

69,337,000

[1]

-22,372,000

[1]

'

'

'

'

'

'

'

'

'

'

'

'

26,800,000

[2]

Cash Flow Hedge Gain (Loss) to be Reclassified Remainder of Year

'

'

($17,400,000)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Volume

'

'

'

'

'

84,900

'

'

'

26,800

35,500

'

'

'

35,500

184

'

Collar Floor Price

'

'

'

'

'

'

3.6

4.37

4.13

'

'

'

'

3.86

'

'

'

Collar Ceiling Price

'

'

'

'

'

'

4.22

4.8

4.51

'

'

4.36

4.43

4.4

'

'

'

Swaps Weighted Average

'

'

'

'

'

'

'

'

'

4.05

'

'

'

'

4.12

97

'

[1]

Net of income taxes of $(8,592) and $7,742 for the three months ended September 30, 2014 and 2013, respectively, and $(45,951) and $14,504 for the nine months ended September 30, 2014 and 2013, respectively.

[2]

The Company ceased hedge accounting effective April 1, 2014. For the three and nine months ended September 30, 2014, a loss of approximately $21.6 million and $44.5 million, respectively, were reclassified into income. These amounts were previously frozen in accumulated other comprehensive income (loss).

Derivative_Instruments_and_Hed3

Derivative Instruments and Hedging Activities (Details 2) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Effect of derivative instruments on the Consolidated Balance Sheet	'	'
Fair Value Asset	$16,503	$3,019
Fair Value Liability	651	13,912
Derivatives Designated as Hedges | Commodity contracts | Other current assets	'	'
Effect of derivative instruments on the Consolidated Balance Sheet	'	'
Fair Value Asset	0	3,019
Derivatives Designated as Hedges | Commodity contracts | Accrued liabilities	'	'
Effect of derivative instruments on the Consolidated Balance Sheet	'	'
Fair Value Liability	0	13,912
Derivatives Not Designated as Hedges | Commodity contracts | Other current assets	'	'
Effect of derivative instruments on the Consolidated Balance Sheet	'	'
Fair Value Asset	16,503	0
Derivatives Not Designated as Hedges | Commodity contracts | Accrued liabilities	'	'
Effect of derivative instruments on the Consolidated Balance Sheet	'	'
Fair Value Liability	102	0
Derivatives Not Designated as Hedges | Commodity contracts | Other liabilities	'	'
Effect of derivative instruments on the Consolidated Balance Sheet	'	'
Fair Value Liability	$549	$0

Derivative_Instruments_and_Hed4

Derivative Instruments and Hedging Activities (Details 3) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Derivative Assets	'	'
Gross amounts of recognized assets	$19,445	$13,792
Gross amounts offset in the statement of financial position	-2,942	-10,773
Net amounts of assets presented in the statement of financial position	16,503	3,019
Gross amounts of financial instruments not offset in the statement of financial position	238	373
Net amount	16,741	3,392
Derivative Liabilities	'	'
Gross amounts of recognized liabilities	3,593	24,685
Gross amounts offset in the statement of financial position	-2,942	-10,773
Net amounts of liabilities presented in the statement of financial position	651	13,912
Gross amounts of financial instruments not offset in the statement of financial position	0	0
Net amount	$651	$13,912

Derivative_Instruments_and_Hed5

Derivative Instruments and Hedging Activities (Details 4) (USD $)	3 Months Ended			6 Months Ended		9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2014		Sep. 30, 2013
Derivative instruments and hedging activities	'		'	'		'		'
Ineffectiveness related to derivative instruments	$0		$0	'		$0		$0
Amount of gain (loss) reclassified from accumulated other comprehensive income (loss) into income (effective portion)	-21,557,000	[1]	19,684,000	-44,514,000	[1]	-115,288,000	[1]	36,876,000
Unrealized Gain (Loss) on Derivatives	'		'	'		44,766,000		0
Gain (loss) on derivative instruments	50,349,000		0	'		25,064,000		0
Total	50,349,000		19,684,000	'		-45,711,000		36,876,000
Natural Gas Revenues	'		'	'		'		'
Derivative instruments and hedging activities	'		'	'		'		'
Amount of gain (loss) reclassified from accumulated other comprehensive income (loss) into income (effective portion)	-21,427,000	[1]	20,766,000	'		-114,304,000	[1]	33,822,000
Crude Oil and Condensate Revenues	'		'	'		'		'
Derivative instruments and hedging activities	'		'	'		'		'
Amount of gain (loss) reclassified from accumulated other comprehensive income (loss) into income (effective portion)	-130,000	[1]	-1,082,000	'		-984,000	[1]	3,054,000
Commodity contracts	'		'	'		'		'
Derivative instruments and hedging activities	'		'	'		'		'
Amount of gain (loss) recognized in other comprehensive income (loss) on derivative (effective portion)	0		-2,384,000	'		-133,310,000		51,783,000
Derivatives Designated as Hedges	'		'	'		'		'
Derivative instruments and hedging activities	'		'	'		'		'
Realized gain (loss) on derivative instruments	0		19,684,000	'		-70,775,000		36,876,000
Derivatives Designated as Hedges | Natural Gas Revenues	'		'	'		'		'
Derivative instruments and hedging activities	'		'	'		'		'
Realized gain (loss) on derivative instruments	0		20,766,000	'		-70,557,000		33,822,000
Derivatives Designated as Hedges | Crude Oil and Condensate Revenues	'		'	'		'		'
Derivative instruments and hedging activities	'		'	'		'		'
Realized gain (loss) on derivative instruments	0		-1,082,000	'		-218,000		3,054,000
Derivatives Not Designated as Hedges	'		'	'		'		'
Derivative instruments and hedging activities	'		'	'		'		'
Unrealized Gain (Loss) on Derivatives	31,833,000		0	'		44,766,000		0
Derivatives Not Designated as Hedges | Natural Gas Revenues	'		'	'		'		'
Derivative instruments and hedging activities	'		'	'		'		'
Realized gain (loss) on derivative instruments	-21,427,000		0	'		-43,747,000		0
Derivatives Not Designated as Hedges | Crude Oil and Condensate Revenues	'		'	'		'		'
Derivative instruments and hedging activities	'		'	'		'		'
Realized gain (loss) on derivative instruments	-130,000		0	'		-766,000		0
Derivatives Not Designated as Hedges | Gain (loss) on derivative instruments	'		'	'		'		'
Derivative instruments and hedging activities	'		'	'		'		'
Realized gain (loss) on derivative instruments	$40,073,000		$0	'		$24,811,000		$0
[1]	The Company ceased hedge accounting effective April 1, 2014. For the three and nine months ended September 30, 2014, a loss of approximately $21.6 million and $44.5 million, respectively, were reclassified into income. These amounts were previously frozen in accumulated other comprehensive income (loss).

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
	Impaired_Asset_And_Liability	Impaired_Asset_And_Liability
Assets	'	'	'
Deferred compensation plan	$12,815,000	'	$12,507,000
Derivative contracts	19,445,000	'	13,792,000
Total assets	32,260,000	'	26,299,000
Liabilities	'	'	'
Deferred compensation plan	30,277,000	'	33,211,000
Derivative contracts	3,593,000	'	24,685,000
Total liabilities	33,870,000	'	57,896,000
Number of non-financial assets and liabilities impaired	0	0	'
Nonrecurring basis	'	'	'
Liabilities	'	'	'
Total liabilities	0	'	'
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring basis	'	'	'
Assets	'	'	'
Deferred compensation plan	12,815,000	'	12,507,000
Derivative contracts	0	'	0
Total assets	12,815,000	'	12,507,000
Liabilities	'	'	'
Deferred compensation plan	30,277,000	'	33,211,000
Derivative contracts	0	'	0
Total liabilities	30,277,000	'	33,211,000
Significant Other Observable Inputs (Level 2) | Recurring basis	'	'	'
Assets	'	'	'
Deferred compensation plan	0	'	0
Derivative contracts	1,578,000	'	0
Total assets	1,578,000	'	0
Liabilities	'	'	'
Deferred compensation plan	0	'	0
Derivative contracts	1,216,000	'	6,983,000
Total liabilities	1,216,000	'	6,983,000
Significant Unobservable Inputs (Level 3) | Recurring basis	'	'	'
Assets	'	'	'
Deferred compensation plan	0	'	0
Derivative contracts	17,867,000	'	13,792,000
Total assets	17,867,000	'	13,792,000
Liabilities	'	'	'
Deferred compensation plan	0	'	0
Derivative contracts	2,377,000	'	17,702,000
Total liabilities	$2,377,000	'	$17,702,000

Fair_Value_Measurements_Detail1

Fair Value Measurements (Details 2) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Reconciliation of changes in the fair value of financial assets and liabilities classified as Level 3 in the fair value hierarchy	'	'
Balance at beginning of period	($3,910)	$41,159
Total gains (losses) (realized or unrealized):	'	'
Realized and unrealized gains (losses) included in earnings	-33,804	33,822
Included in other comprehensive income	-21,068	24,287
Settlements	74,271	-33,822
Transfers in and/or out of level 3	0	0
Balance at end of period	15,489	65,446
Change in unrealized gains (losses) relating to assets and liabilities still held at the end of the period	$40,467	$0

Fair_Value_Measurements_Detail2

Fair Value Measurements (Details 3) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair value disclosures	'	'
Long-term debt	$1,612,000	$1,147,000
Carrying amount	'	'
Fair value disclosures	'	'
Long-term debt	1,612,000	1,147,000
Estimated fair value	'	'
Fair value disclosures	'	'
Long-term debt	$1,697,654	$1,224,273

Fair_Value_Measurements_Fair_V

Fair Value Measurements Fair Value Measurements (Parenthetical) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
	Impaired_Asset_And_Liability	Impaired_Asset_And_Liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$0	'	$0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0	'	0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0	'	0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount	0	'	0
Number of non-financial assets and liabilities impaired	0	0	'
Fair Value, Measurements, Nonrecurring [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Asset Impairment Charges Non Financial	0	'	'
Asset Impairment Charges Non Financial Liabilities	$0	'	'

Asset_Retirement_Obligation_De

Asset Retirement Obligation (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Asset Retirement Obligation	'	'
Balance at beginning of period	$75,853,000	'
Liabilities incurred	4,360,000	'
Liabilities settled	-411,000	'
Liabilities divested	-899,000	'
Change in estimate	33,810,000	'
Accretion expense	3,528,000	'
Balance at end of period	116,241,000	'
Current portion of asset retirement obligation	$2,000,000	$2,000,000

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (Transportation and Gathering Agreements, USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014
Transportation and Gathering Agreements	'
Commitments and Contingencies	'
Amount of increase in the future aggregate obligations under the transportation commitments	$230.50
Period over which increase in transportation and gathering agreements obligation is affected	'13 years

Postretirement_Benefits_Detail

Postretirement Benefits (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Components of Net Periodic Benefit Cost	'	'	'	'
Service cost	$456	$455	$1,368	$1,285
Interest cost	407	355	1,221	1,145
Amortization of net loss	0	116	0	525
Net periodic benefit cost	$863	$926	$2,589	$2,955

Stockbased_Compensation_Detail

Stock-based Compensation (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

In Millions, except Share data, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Aug. 31, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Feb. 20, 2014

Sep. 30, 2014

Supplemental Employee Incentive Plan IV

Supplemental Employee Incentive Plan IV

Supplemental Employee Incentive Plan IV

Supplemental Employee Incentive Plan IV

Supplemental Employee Incentive Plans III

Restricted Stock Awards

Restricted Stock Units

Performance Share Awards

Performance Share Awards

Performance Share Awards Based on Internal Performance Metrics

Employee Performance Share Awards

Hybrid Performance Share Awards

Hybrid Performance Share Awards

Hybrid Performance Share Awards

Performance Shares Based on Market Conditions

TSR Performance Share Awards

TSR Performance Share Awards

Minimum

Maximum

Maximum

Hybrid performance share awards, percentage vesting on each of the first and second anniversary

Hybrid performance share awards, percentage vesting on the third anniversary

Maximum

Benchmark_Company

Stock-based Compensation arrangements

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock based compensation expense

$5.70

$12.20

$15.10

$41

$0.20

$4.10

$3.30

$9.20

'

'

'

'

'

'

'

'

'

'

'

'

'

Tax benefits realized for stock-based compensation

'

'

-6

-9.3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Granted (in shares)

'

'

'

'

'

'

'

'

'

46,000

35,870

'

'

'

241,130

123,257

'

'

'

'

184,885

Granted (in dollars per share)

'

'

'

'

'

'

'

'

'

$34.96

$38.73

'

'

'

$39.43

$39.43

'

'

'

'

'

Annual forfeiture rate assumption (as a percent)

'

'

'

'

'

'

'

'

'

5.00%

'

0.00%

5.00%

'

'

'

'

'

'

'

'

Right to receive additional shares (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

Number of years over which performance criteria is to be met

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'3 years

'

'

'

'

'

'3 years

Vesting rights

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'The 2014 awards vest 25% on each of the first and second anniversary dates and 50% on the third anniversary

'

'

'

'

'

Minimum operating cash flow for the year preceding the performance period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100

'

'

'

'

'

Right to receive shares (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

Right to receive an additional award in cash (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

Number of other companies in the Company's peer group

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

14

Payments associated with deferred compensation arrangements

'

'

'

'

'

'

'

'

$13

'

'

'

'

'

'

'

'

'

'

'

'

Assumptions:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value per performance share award (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$32.04

'

Stock price volatility (as a percent)

'

'

'

'

'

'

33.90%

'

'

'

'

'

'

'

'

'

'

'

'

41.30%

'

Risk free rate of return (as a percent)

'

'

'

'

'

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

0.70%

'

Expected dividend yield (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.20%

0.20%

Annual salary increase rate (as a percent)

'

'

'

'

'

'

4.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual turnover rate

'

'

'

'

'

'

4.60%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value per performance share award Assumptions, low end of range (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$7.19

Fair value per performance share award Assumptions, high end of range (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$25.22

Stock Price Volatility, low end of range (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

27.50%

Stock Price Volatility, high end of range (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

120.40%

Risk free rate of return, low end of range (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.02%

Risk free rate of return, high end of range (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.70%

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25.00%

50.00%

'

'

'

Earnings_per_Common_Share_Deta

Earnings per Common Share (Details)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Weighted-average shares - basic	416,173	420,986	416,785	420,664
Dilution effect of stock appreciation rights and stock awards at end of period (in shares)	1,920	2,467	1,683	2,160
Weighted-average shares - diluted	418,093	423,453	418,468	422,824
Weighted-average stock awards and shares excluded from diluted earnings per share due to the anti-dilutive effect	0	1	461	3

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013
		Net Gain (Loss) on Cash Flow Hedges	Postretirement Benefits	Postretirement Benefits
Changes in accumulated other comprehensive income (loss) by component, net of tax	'	'	'	'
Balance at December 31, 2013	($8,361)	($6,551)	($1,810)	($1,810)
Other comprehensive income before reclassifications	-80,175	-80,175	'	'
Amounts reclassified from accumulated other comprehensive income	69,337	69,337	'	'
Net current-period other comprehensive income	-10,838	-10,838	'	'
Balance at September 30, 2014	($19,199)	($17,389)	($1,810)	($1,810)

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income (Loss) (Details 2) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Line items in income statement impacted by reclassifications out of accumulated other comprehensive income	'	'	'	'
Natural gas revenues	$347,970	$341,901	$1,218,540	$1,004,085
Crude oil and condensate revenues	82,563	84,209	228,047	220,090
Income before income taxes	172,919	115,736	545,167	334,530
Tax benefit (expense)	-72,131	-45,847	-218,928	-132,703
Reclassifications to net income	100,788	69,889	326,239	201,827
Amount Reclassified from Accumulated Other Comprehensive Income	'	'	'	'
Line items in income statement impacted by reclassifications out of accumulated other comprehensive income	'	'	'	'
Income before income taxes	-21,557	19,568	-115,288	36,351
Tax benefit (expense)	8,592	-7,696	45,951	-14,298
Reclassifications to net income	-12,965	11,872	-69,337	22,053
Net gain (loss) on cash flow hedges | Amount Reclassified from Accumulated Other Comprehensive Income | Commodity contracts	'	'	'	'
Line items in income statement impacted by reclassifications out of accumulated other comprehensive income	'	'	'	'
Natural gas revenues	-21,427	20,766	-114,304	33,822
Crude oil and condensate revenues	-130	-1,082	-984	3,054
Postretirement benefits | Amount Reclassified from Accumulated Other Comprehensive Income	'	'	'	'
Line items in income statement impacted by reclassifications out of accumulated other comprehensive income	'	'	'	'
Amortization of net loss	$0	($116)	$0	($525)

ADDITIONAL_BALANCE_SHEET_INFOR2

ADDITIONAL BALANCE SHEET INFORMATION (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Accounts receivable, net	'	'
Trade accounts	$190,328	$215,361
Joint interest billing	1,493	7,261
Income taxes receivable	0	922
Other accounts	439	746
Accounts receivable, gross	192,260	224,290
Allowance for doubtful accounts	-990	-1,814
Accounts receivable, net	191,270	222,476
Inventories	'	'
Natural gas in storage	3,596	9,056
Tubular goods and well equipment	10,080	8,396
Other accounts	55	16
Inventory, net	13,731	17,468
Other current assets	'	'
Prepaid balances and other	2,730	2,587
Derivative instruments	16,503	3,019
Other current assets	19,233	5,606
Other assets	'	'
Deferred compensation plan	12,815	12,507
Debt issuance cost	18,725	16,476
Other accounts	70	79
Other assets	31,610	29,062
Accounts payable	'	'
Trade accounts	53,938	26,023
Natural gas purchases	6,813	2,052
Royalty and other owners	102,933	79,150
Accrued capital costs	185,525	146,899
Taxes other than income	12,906	13,677
Drilling advances	89	14,093
Other accounts	17,583	6,907
Accounts payable current	379,787	288,801
Accrued liabilities	'	'
Employee benefits	18,798	43,599
Taxes other than income	10,459	6,894
Interest payable	12,833	20,211
Derivative instruments	102	13,912
Other accounts	2,651	2,897
Accrued liabilities	44,843	87,513
Other liabilities	'	'
Deferred compensation plan	30,277	33,211
Derivative instruments	549	0
Other accounts	6,963	13,043
Other liabilities	$37,789	$46,254

CAPITAL_STOCK_Details

CAPITAL STOCK (Details) (USD $)	9 Months Ended				9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	31-May-14	30-May-14	Dec. 31, 2013	Sep. 30, 2014	1-May-14	1-May-14
					2014 Incentive Plan	2014 Incentive Plan	2014 Incentive Plan
							Stock options
							Maximum
Incentive Plans	'	'	'	'	'	'	'
Number of shares reserved for issuance	'	'	'	'	'	18,000,000	10,000,000
Number of additional shares issuable under the 2014 Incentive Plan on or after May 1, 2024	'	'	'	'	0	'	'
Number of additional shares that will be issued under any of the Company's prior plans, including the 2004 Incentive Plan	0	'	'	'	'	'	'
Common stock, authorized shares	960,000,000	960,000,000	480,000,000	480,000,000	'	'	'
Number of shares repurchased	4,000,000	'	'	'	'	'	'
Cost of shares repurchased	$130.80	'	'	'	'	'	'
Cumulative number of shares repurchased under a share repurchase program	29,600,000	'	'	'	'	'	'
Treasury stock, number of shares authorized to be repurchased	40,000,000	'	'	'	'	'	'
Cumulative cost of shares repurchased under a share repurchase program	$380.30	'	'	'	'	'	'
Treasury stock, cumulative shares retired	20,000,000	'	'	'	'	'	'
Shares held as treasury stock	9,638,980	'	'	5,618,166	'	'	'