$EQT
EQT Corp Stock $eqt

$eqt Overview Financials Valuation SEC Filings Company Website

2014 Form 10-K Financial Statement

#000003321315000004 Filed on February 12, 2015

Income Statement

Concept	2014	2013 Q4	2013 Q3
Revenue	$2.470B	$493.4M	$479.6M
YoY Change	32.64%	21.45%	41.93%
Cost Of Revenue	$335.7M	-$12.10M	$63.70M
YoY Change	30.72%	-6150.0%	10.59%
Gross Profit	$2.134B	$288.8M	$415.9M
YoY Change	32.94%	28.24%	35.69%
Gross Profit Margin	86.41%	58.53%	86.72%
Selling, General & Admin	$238.1M	$38.50M	$48.17M
YoY Change	18.56%	6.94%	-6.43%
% of Gross Profit	11.16%	13.33%	11.58%
Research & Development	$21.70M	$3.400M	$5.300M
YoY Change	17.3%	-38.18%	341.67%
% of Gross Profit	1.02%	1.18%	1.27%
Depreciation & Amortization	$679.3M	$183.3M	$169.5M
YoY Change	4.01%	27.03%	28.77%
% of Gross Profit	31.83%	63.47%	40.75%
Operating Expenses	$238.1M	$194.2M	$48.17M
YoY Change	18.56%	25.21%	-6.43%
Operating Profit	$853.4M	$181.1M	$167.1M
YoY Change	30.37%	43.14%	105.61%
Interest Expense	$136.5M	-$32.00M	$35.55M
YoY Change	-4.31%	-50.54%	-12.13%
% of Operating Profit	16.0%	-17.67%	21.28%
Other Income/Expense, Net	$3.500M	$2.400M	$2.300M
YoY Change	118.75%	-50.0%	-23.33%
Pretax Income	$723.7M	$84.50M	$133.8M
YoY Change	38.87%	808.6%	177.12%
Income Tax	$214.1M	$44.60M	$33.50M
% Of Pretax Income	29.58%	52.78%	25.03%
Net Earnings	$387.0M	$115.2M	$102.6M
YoY Change	-0.92%	140.0%	179.56%
Net Earnings / Revenue	15.67%	23.35%	21.39%
Basic Earnings Per Share	$2.55	$0.76	$0.59
Diluted Earnings Per Share	$2.54	$0.75	$0.58
COMMON SHARES
Basic Shares Outstanding	151.6M shares		150.7M shares
Diluted Shares Outstanding	152.5M shares		151.7M shares

Balance Sheet

Concept	2014	2013 Q4	2013 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.077B	$846.0M	$424.0M
YoY Change	27.3%	364.84%	-33.65%
Cash & Equivalents	$1.077B	$845.6M	$423.9M
Short-Term Investments
Other Short-Term Assets	$520.0M	$155.0M	$255.0M
YoY Change	235.48%	-64.37%	-32.0%
Inventory		$20.00M	$68.00M
Prepaid Expenses
Receivables	$306.0M	$235.8M	$186.1M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.904B	$1.255B	$933.3M
YoY Change	51.71%	47.2%	-23.99%
LONG-TERM ASSETS
Property, Plant & Equipment	$10.08B	$8.334B	$8.476B
YoY Change	20.91%	18.05%	13.13%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$0.00	$129.0M	$127.2M
YoY Change	-100.0%	-1.06%	-4.99%
Other Assets	$54.00M	$73.88M	$32.14M
YoY Change	-27.03%	29.21%	-21.04%
Total Long-Term Assets	$10.13B	$8.510B	$8.749B
YoY Change	18.67%	6.42%	12.6%
TOTAL ASSETS
Total Short-Term Assets	$1.904B	$1.255B	$933.3M
Total Long-Term Assets	$10.13B	$8.510B	$8.749B
Total Assets	$12.04B	$9.766B	$9.682B
YoY Change	22.91%	10.35%	7.61%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$444.0M	$330.3M	$306.2M
YoY Change	34.55%	19.34%	24.09%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$166.0M	$11.16M	$6.162M
YoY Change	1409.09%	-51.9%	-97.24%
Total Short-Term Liabilities	$833.0M	$523.4M	$540.7M
YoY Change	59.27%	-8.25%	-33.98%
LONG-TERM LIABILITIES
Long-Term Debt	$2.793B	$2.490B	$2.496B
YoY Change	12.17%	-0.5%	-0.3%
Other Long-Term Liabilities	$285.0M	$258.4M	$240.0M
YoY Change	10.47%	37.49%	4.99%
Total Long-Term Liabilities	$3.078B	$2.749B	$2.736B
YoY Change	12.01%	2.15%	0.14%
TOTAL LIABILITIES
Total Short-Term Liabilities	$833.0M	$523.4M	$540.7M
Total Long-Term Liabilities	$3.078B	$2.749B	$2.736B
Total Liabilities	$7.453B	$4.928B	$4.947B
YoY Change	29.46%	-0.67%	-3.94%
SHAREHOLDERS EQUITY
Retained Earnings		$2.568B	$2.457B
YoY Change		16.97%	12.7%
Common Stock		$1.870B	$1.827B
YoY Change		5.61%	3.04%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$447.7M	$450.8M
YoY Change		-3.04%	-4.24%
Treasury Stock Shares		24.80M shares	24.97M shares
Shareholders Equity	$4.583B	$4.035B	$3.911B
YoY Change
Total Liabilities & Shareholders Equity	$12.04B	$9.792B	$9.682B
YoY Change	22.91%	10.65%	7.61%

Cashflow Statement

Concept	2014	2013 Q4	2013 Q3
OPERATING ACTIVITIES
Net Income	$387.0M	$115.2M	$102.6M
YoY Change	-0.92%	140.0%	179.56%
Depreciation, Depletion And Amortization	$679.3M	$183.3M	$169.5M
YoY Change	4.01%	27.03%	28.77%
Cash From Operating Activities	$1.415B	$194.8M	$359.3M
YoY Change	21.66%	53.63%	42.81%
INVESTING ACTIVITIES
Capital Expenditures	$2.277B	-$542.8M	-$415.6M
YoY Change	1893.72%	54.29%	15.06%
Acquisitions
YoY Change
Other Investing Activities	$7.400M	$763.6M	$0.00
YoY Change	-99.03%		-100.0%
Cash From Investing Activities	-$2.444B	$220.8M	-$415.6M
YoY Change	144.48%	-162.76%	15.41%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$32.37M
YoY Change
Debt Paid & Issued, Net	$11.16M
YoY Change	-51.9%
Cash From Financing Activities	$1.261B	6.100M	463.6M
YoY Change	152.0%	-102.63%	99.4%
NET CHANGE
Cash From Operating Activities	$1.415B	194.8M	359.3M
Cash From Investing Activities	-$2.444B	220.8M	-415.6M
Cash From Financing Activities	$1.261B	6.100M	463.6M
Net Change In Cash	$231.8M	421.7M	407.3M
YoY Change	-65.07%	-192.3%	228.47%
FREE CASH FLOW
Cash From Operating Activities	$1.415B	$194.8M	$359.3M
Capital Expenditures	$2.277B	-$542.8M	-$415.6M
Free Cash Flow	-$862.6M	$737.6M	$774.9M
YoY Change	-182.26%	54.12%	26.45%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2014	eqt	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Due To Forecasted Transactions Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionDueToForecastedTransactionsNet	-16735000	USD
CY2014	eqt	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Change In Price Of Oil Sensitivity DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesChangeInPriceOfOilSensitivity	10
CY2014	eqt	Discounted Future Net Cash Flows Relatingto Proved Oiland Gas Reserves Changein Priceof Natural Gas Liquids DiscountedFutureNetCashFlowsRelatingtoProvedOilandGasReservesChangeinPriceofNaturalGasLiquids	10
CY2014	eqt	Engineer Experience In Years EngineerExperienceInYears	P17Y
CY2014Q4	eqt	Discount Rate To Compute Standard Measure Of Future Cash Flow DiscountRateToComputeStandardMeasureOfFutureCashFlow	0.10
CY2014	eqt	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Change In Price Of Natural Gas Sensitivity DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesChangeInPriceOfNaturalGasSensitivity	1
CY2013	eqt	Oil And Gas Property Successful Effort Method Average Depletion Rate OilAndGasPropertySuccessfulEffortMethodAverageDepletionRate	1.50
CY2014	eqt	Oil And Gas Property Successful Effort Method Average Depletion Rate OilAndGasPropertySuccessfulEffortMethodAverageDepletionRate	1.22
CY2014	eqt	Increase Decreasein Natural Gas Equivalent Reserves Dueto Changein Pricesand Otherwhichwas Partially Offsetby Increased Reserves IncreaseDecreaseinNaturalGasEquivalentReservesDuetoChangeinPricesandOtherwhichwasPartiallyOffsetbyIncreasedReserves	-845100000	Mcfe
CY2012	eqt	Increase In Reserves Of Natural Gas Equivalents IncreaseInReservesOfNaturalGasEquivalents	1655800000	Mcfe
CY2013	eqt	Increase In Reserves Of Natural Gas Equivalents IncreaseInReservesOfNaturalGasEquivalents	2046600000	Mcfe
CY2014	eqt	Increase In Reserves Of Natural Gas Equivalents IncreaseInReservesOfNaturalGasEquivalents	3276100000	Mcfe
CY2014	eqt	Line Of Credit Facility Extension Duration LineOfCreditFacilityExtensionDuration	P1Y
CY2014	eqt	Line Of Credit Facility Extensions Number LineOfCreditFacilityExtensionsNumber	2	extension
CY2014	eqt	Line Of Credit Facility Potential Increase In Lenders Commitment LineOfCreditFacilityPotentialIncreaseInLendersCommitment	2000000000.0	USD
CY2014	eqt	Line Of Credit Facility Underwriting Syndicate Financial Institutions Number LineOfCreditFacilityUnderwritingSyndicateFinancialInstitutionsNumber	18	financial_institution
CY2014	eqt	Maximum Additional Collateral As Percentage Of Derivative Liability MaximumAdditionalCollateralAsPercentageOfDerivativeLiability	1
CY2014	eqt	Maximum Term Of Original Maturity To Classify Investment As Cash Equivalents MaximumTermOfOriginalMaturityToClassifyInvestmentAsCashEquivalents	P3M
CY2013	eqt	Number Of Undeveloped Locations And Associated Reserves That Were Removed NumberOfUndevelopedLocationsAndAssociatedReservesThatWereRemoved	58	undeveloped_locations
CY2012	eqt	Oil And Gas Property Successful Effort Method Average Depletion Rate OilAndGasPropertySuccessfulEffortMethodAverageDepletionRate	1.52
CY2014	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2014	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2014
CY2014	dei	Document Period End Date DocumentPeriodEndDate	2014-12-31
CY2014	dei	Document Type DocumentType	10-K
CY2014	dei	Entity Central Index Key EntityCentralIndexKey	0000033213
CY2014	dei	Entity Registrant Name EntityRegistrantName	EQT Corp
CY2014	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2015Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	151602000	shares
CY2014	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2014	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2014	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2014Q2	dei	Entity Public Float EntityPublicFloat	14000000000	USD
CY2014	dei	Amendment Flag AmendmentFlag	false
CY2014	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2014	eqt	Equity Method Investment Summarized Financial Information Operating Expenses EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses	13155000	USD
CY2013Q4	eqt	Fair Value Derivative Instruments Level3 To Level2 Transfers Amount FairValueDerivativeInstrumentsLevel3ToLevel2TransfersAmount	54400000	USD
CY2012	eqt	Field Increase Decrease With Lateral Spacing FieldIncreaseDecreaseWithLateralSpacing	-1	location
CY2013	eqt	Field Increase Decrease With Lateral Spacing FieldIncreaseDecreaseWithLateralSpacing	-1	location
CY2012	eqt	Gain Loss On Sale Of Property Continuing And Discontinued Operations GainLossOnSaleOfPropertyContinuingAndDiscontinuedOperations	0	USD
CY2012	eqt	Equity Method Investment Summarized Financial Information Operating Expenses EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses	35596000	USD
CY2013	eqt	Equity Method Investment Summarized Financial Information Operating Expenses EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses	29810000	USD
CY2014	eqt	Income Tax Expense Benefit Excess Previously Not Recorded IncomeTaxExpenseBenefitExcessPreviouslyNotRecorded	-6600000	USD
CY2012	eqt	Increase Decrease In Natural Gas Equivalent Reserves Due To Change In Prices And Other IncreaseDecreaseInNaturalGasEquivalentReservesDueToChangeInPricesAndOther	-754200000	Mcfe
CY2013	eqt	Gain Loss On Sale Of Property Continuing And Discontinued Operations GainLossOnSaleOfPropertyContinuingAndDiscontinuedOperations	166276000	USD
CY2014	eqt	Gain Loss On Sale Of Property Continuing And Discontinued Operations GainLossOnSaleOfPropertyContinuingAndDiscontinuedOperations	2898000	USD
CY2014	eqt	Gas And Liquid Carbon Proved Reserves Reviewed Percentage GasAndLiquidCarbonProvedReservesReviewedPercentage	1
CY2013Q4	eqt	Incentive Compensation Liability Current IncentiveCompensationLiabilityCurrent	65053000	USD
CY2014Q4	eqt	Incentive Compensation Liability Current IncentiveCompensationLiabilityCurrent	70826000	USD
CY2013	eqt	Asset Expenditures Incurred Not Paid AssetExpendituresIncurredNotPaid	70200000	USD
CY2014	eqt	Asset Expenditures Incurred Not Paid AssetExpendituresIncurredNotPaid	99300000	USD
CY2014	eqt	Audit Coverage Of Proved Reserves Percentage AuditCoverageOfProvedReservesPercentage	0.80
CY2013Q4	eqt	Accumulated Other Comprehensive Income Loss Cumulative Changes In Deferred Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInDeferredNetGainLossFromCashFlowHedgesEffectNetOfTax	61700000	USD
CY2014Q4	eqt	Accumulated Other Comprehensive Income Loss Cumulative Changes In Deferred Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInDeferredNetGainLossFromCashFlowHedgesEffectNetOfTax	217100000	USD
CY2013Q4	eqt	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Interest Rate Swaps Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromInterestRateSwapsNetOfTax	-1132000	USD
CY2014Q4	eqt	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Interest Rate Swaps Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromInterestRateSwapsNetOfTax	-987000	USD
CY2014	eqt	Adjustments To Fair Value Of Derivative Contracts Due To Credit Risk AdjustmentsToFairValueOfDerivativeContractsDueToCreditRisk	0	USD
CY2012	eqt	Amortization Of Deferred Investment Tax Credit AmortizationOfDeferredInvestmentTaxCredit	104000	USD
CY2013	eqt	Amortization Of Deferred Investment Tax Credit AmortizationOfDeferredInvestmentTaxCredit	195000	USD
CY2014	eqt	Amortization Of Deferred Investment Tax Credit AmortizationOfDeferredInvestmentTaxCredit	0	USD
CY2012	eqt	Asset Expenditures Incurred Not Paid AssetExpendituresIncurredNotPaid	24000000	USD
CY2014	eqt	Audit Coverage Of Remaining Properties Percentage AuditCoverageOfRemainingPropertiesPercentage	0.20
CY2012	eqt	Cash Settlements On Derivatives Not Designated As Hedges CashSettlementsOnDerivativesNotDesignatedAsHedges	7508000	USD
CY2013	eqt	Cash Settlements On Derivatives Not Designated As Hedges CashSettlementsOnDerivativesNotDesignatedAsHedges	1115000	USD
CY2014	eqt	Cash Settlements On Derivatives Not Designated As Hedges CashSettlementsOnDerivativesNotDesignatedAsHedges	34239000	USD
CY2014	eqt	Change In Discounted Future Cash Flows For Assumed Natural Gas Price Change ChangeInDiscountedFutureCashFlowsForAssumedNaturalGasPriceChange	4300000000	USD
CY2014	eqt	Change In Discounted Future Cash Flows For Assumed Oil Price Change ChangeInDiscountedFutureCashFlowsForAssumedOilPriceChange	21800000	USD
CY2014	eqt	Changein Discounted Future Cash Flowsfor Assumed Natural Gas Liquids Price Change ChangeinDiscountedFutureCashFlowsforAssumedNaturalGasLiquidsPriceChange	551100000	USD
CY2014	eqt	Charitable Expense CharitableExpense	20000000	USD
CY2013	eqt	Current State And Local Tax Benefit CurrentStateAndLocalTaxBenefit	9800000	USD
CY2012	eqt	Deferred Income Tax Expense Benefit Continuing And Discontinued Operations DeferredIncomeTaxExpenseBenefitContinuingAndDiscontinuedOperations	95185000	USD
CY2013	eqt	Deferred Income Tax Expense Benefit Continuing And Discontinued Operations DeferredIncomeTaxExpenseBenefitContinuingAndDiscontinuedOperations	110363000	USD
CY2014	eqt	Deferred Income Tax Expense Benefit Continuing And Discontinued Operations DeferredIncomeTaxExpenseBenefitContinuingAndDiscontinuedOperations	32021000	USD
CY2013	eqt	Deferred Tax Assets Decrease Resulting From Uncertain Tax Positions Related To Operating Loss Carryforwards State DeferredTaxAssetsDecreaseResultingFromUncertainTaxPositionsRelatedToOperatingLossCarryforwardsState	300000	USD
CY2014	eqt	Deferred Tax Assets Decrease Resulting From Uncertain Tax Positions Related To Operating Loss Carryforwards State DeferredTaxAssetsDecreaseResultingFromUncertainTaxPositionsRelatedToOperatingLossCarryforwardsState	300000	USD
CY2013	eqt	Deferred Tax Assets Increase Decrease Resulting From Uncertain Tax Positions Related To Operating Loss Carryforwards Federal DeferredTaxAssetsIncreaseDecreaseResultingFromUncertainTaxPositionsRelatedToOperatingLossCarryforwardsFederal	10600000	USD
CY2014Q4	eqt	Deferred Tax Assets Other Comprehensive Loss From Pension Plans DeferredTaxAssetsOtherComprehensiveLossFromPensionPlans	5100000	USD
CY2013Q4	eqt	Deferred Tax Liabilities Deferred Expense Capitalized Drilling And Development Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedDrillingAndDevelopmentCosts	1190357000	USD
CY2014Q4	eqt	Deferred Tax Liabilities Deferred Expense Capitalized Drilling And Development Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedDrillingAndDevelopmentCosts	1391156000	USD
CY2014	eqt	Deferred Tax Assets Increase Decrease Resulting From Uncertain Tax Positions Related To Operating Loss Carryforwards Federal DeferredTaxAssetsIncreaseDecreaseResultingFromUncertainTaxPositionsRelatedToOperatingLossCarryforwardsFederal	11700000	USD
CY2014	eqt	Defined Benefit Plan Health Care Cost Annual Rate Of Change In Per Capita Health Care Cost Pre65 DefinedBenefitPlanHealthCareCostAnnualRateOfChangeInPerCapitaHealthCareCostPre65	0.0725
CY2012	eqt	Depreciation Depletion And Amortization Continuing And Discontinued Operations DepreciationDepletionAndAmortizationContinuingAndDiscontinuedOperations	499118000	USD
CY2013Q4	eqt	Deferred Tax Assets Liabilities Other Comprehensive Loss From Designated Or Qualifying Cash Flow Hedges DeferredTaxAssetsLiabilitiesOtherComprehensiveLossFromDesignatedOrQualifyingCashFlowHedges	38700000	USD
CY2014Q4	eqt	Deferred Tax Assets Liabilities Other Comprehensive Loss From Designated Or Qualifying Cash Flow Hedges DeferredTaxAssetsLiabilitiesOtherComprehensiveLossFromDesignatedOrQualifyingCashFlowHedges	141300000	USD
CY2014Q4	eqt	Deferred Tax Assets Other Comprehensive Loss From Other Postretirement Benefit Plans DeferredTaxAssetsOtherComprehensiveLossFromOtherPostretirementBenefitPlans	5400000	USD
CY2013Q4	eqt	Deferred Tax Assets Other Comprehensive Loss From Pension Plans DeferredTaxAssetsOtherComprehensiveLossFromPensionPlans	4800000	USD
CY2013Q4	eqt	Deferred Tax Assets Other Comprehensive Loss From Other Postretirement Benefit Plans DeferredTaxAssetsOtherComprehensiveLossFromOtherPostretirementBenefitPlans	5300000	USD
CY2014	eqt	Increase Decrease In Revenue From Recognition Of Put Premium IncreaseDecreaseInRevenueFromRecognitionOfPutPremium	0	USD
CY2012	eqt	Increase Decrease In Revenue From Recognition Of Put Premium IncreaseDecreaseInRevenueFromRecognitionOfPutPremium	-8227000	USD
CY2013	eqt	Increase Decrease In Revenue From Recognition Of Put Premium IncreaseDecreaseInRevenueFromRecognitionOfPutPremium	0	USD
CY2013	eqt	Increase Decrease In Natural Gas Equivalent Reserves Due To Change In Prices And Other IncreaseDecreaseInNaturalGasEquivalentReservesDueToChangeInPricesAndOther	-191500000	Mcfe
CY2014	eqt	Increase Decrease In Natural Gas Equivalent Reserves Due To Change In Prices And Other IncreaseDecreaseInNaturalGasEquivalentReservesDueToChangeInPricesAndOther	-301400000	Mcfe
CY2013	eqt	Increase Decrease In Natural Gas Equivalent Reserves Due To Change In Prices And Other Which Was Partially Offset By Negative Revisions IncreaseDecreaseInNaturalGasEquivalentReservesDueToChangeInPricesAndOtherWhichWasPartiallyOffsetByNegativeRevisions	-349000000	Mcfe
CY2013	eqt	Depreciation Depletion And Amortization Continuing And Discontinued Operations DepreciationDepletionAndAmortizationContinuingAndDiscontinuedOperations	676570000	USD
CY2014	eqt	Depreciation Depletion And Amortization Continuing And Discontinued Operations DepreciationDepletionAndAmortizationContinuingAndDiscontinuedOperations	679298000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	700000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	708000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2012Q4	eqt	Oil And Gas Property Successful Effort Method Internal Costs OilAndGasPropertySuccessfulEffortMethodInternalCosts	72100000	USD
CY2013Q4	eqt	Oil And Gas Property Successful Effort Method Internal Costs OilAndGasPropertySuccessfulEffortMethodInternalCosts	93500000	USD
CY2014Q4	eqt	Oil And Gas Property Successful Effort Method Internal Costs OilAndGasPropertySuccessfulEffortMethodInternalCosts	108500000	USD
CY2014	eqt	Operating Loss Carryforwards Created Federal OperatingLossCarryforwardsCreatedFederal	30800000	USD
CY2012	eqt	Other Comprehensive Income Derivatives Qualifying As Hedges Interest Rate Tax OtherComprehensiveIncomeDerivativesQualifyingAsHedgesInterestRateTax	4833000	USD
CY2013	eqt	Other Comprehensive Income Derivatives Qualifying As Hedges Interest Rate Tax OtherComprehensiveIncomeDerivativesQualifyingAsHedgesInterestRateTax	63000	USD
CY2014	eqt	Other Comprehensive Income Derivatives Qualifying As Hedges Interest Rate Tax OtherComprehensiveIncomeDerivativesQualifyingAsHedgesInterestRateTax	104000	USD
CY2012	eqt	Other Comprehensive Income Derivatives Qualifying As Hedges Period Increase Decrease Net Of Tax Interest Rate OtherComprehensiveIncomeDerivativesQualifyingAsHedgesPeriodIncreaseDecreaseNetOfTaxInterestRate	6369000	USD
CY2013	eqt	Other Comprehensive Income Derivatives Qualifying As Hedges Period Increase Decrease Net Of Tax Interest Rate OtherComprehensiveIncomeDerivativesQualifyingAsHedgesPeriodIncreaseDecreaseNetOfTaxInterestRate	144000	USD
CY2014	eqt	Other Comprehensive Income Derivatives Qualifying As Hedges Period Increase Decrease Net Of Tax Interest Rate OtherComprehensiveIncomeDerivativesQualifyingAsHedgesPeriodIncreaseDecreaseNetOfTaxInterestRate	145000	USD
CY2012	eqt	Payments To Acquire Property Plant And Equipment Continuing Operations PaymentsToAcquirePropertyPlantAndEquipmentContinuingOperations	1346595000	USD
CY2013	eqt	Payments To Acquire Property Plant And Equipment Continuing Operations PaymentsToAcquirePropertyPlantAndEquipmentContinuingOperations	1612501000	USD
CY2014	eqt	Payments To Acquire Property Plant And Equipment Continuing Operations PaymentsToAcquirePropertyPlantAndEquipmentContinuingOperations	2277472000	USD
CY2012	eqt	Payments To Acquire Property Plant And Equipment Discontinued Operations PaymentsToAcquirePropertyPlantAndEquipmentDiscontinuedOperations	28745000	USD
CY2013	eqt	Payments To Acquire Property Plant And Equipment Discontinued Operations PaymentsToAcquirePropertyPlantAndEquipmentDiscontinuedOperations	36637000	USD
CY2014	eqt	Payments To Acquire Property Plant And Equipment Discontinued Operations PaymentsToAcquirePropertyPlantAndEquipmentDiscontinuedOperations	0	USD
CY2014	eqt	Percentage Of Consolidated Pre Tax Income Related To Noncontrolling Public Limited Partners Share Of Partnership Earnings PercentageOfConsolidatedPreTaxIncomeRelatedToNoncontrollingPublicLimitedPartnersShareOfPartnershipEarnings	1
CY2014	eqt	Percentage Of Total Debt To Total Capital Maximum PercentageOfTotalDebtToTotalCapitalMaximum	0.65
CY2012	eqt	Proceeds From Sale Of Energy Marketing Contracts ProceedsFromSaleOfEnergyMarketingContracts	0	USD
CY2013	eqt	Proceeds From Sale Of Energy Marketing Contracts ProceedsFromSaleOfEnergyMarketingContracts	23000000	USD
CY2014	eqt	Proceeds From Sale Of Energy Marketing Contracts ProceedsFromSaleOfEnergyMarketingContracts	0	USD
CY2012	eqt	Production Of Natural Gas Equivalents ProductionOfNaturalGasEquivalents	261000000	Mcfe
CY2013	eqt	Production Of Natural Gas Equivalents ProductionOfNaturalGasEquivalents	367100000	Mcfe
CY2014	eqt	Production Of Natural Gas Equivalents ProductionOfNaturalGasEquivalents	488100000	Mcfe
CY2014Q4	eqt	Proved Undeveloped Reserves Amount Removed ProvedUndevelopedReservesAmountRemoved	1047200000	Mcfe
CY2014	eqt	Proved Undeveloped Reserves Termof Classification ProvedUndevelopedReservesTermofClassification	P5Y
CY2014Q4	eqt	Reserved Authorized And Unissued Common Stock Compensation Plans ReservedAuthorizedAndUnissuedCommonStockCompensationPlans	16236000	shares
CY2014Q4	eqt	Reserved Authorized And Unissued Common Stock Possible Future Acquisitions ReservedAuthorizedAndUnissuedCommonStockPossibleFutureAcquisitions	20457000	shares
CY2014	eqt	Tax Benefits Recognized Addition To Common Stockholders Equity TaxBenefitsRecognizedAdditionToCommonStockholdersEquity	26600000	USD
CY2014	eqt	Tax Credit Carryforward Expiration Period TaxCreditCarryforwardExpirationPeriod	P20Y
CY2014	eqt	Undeveloped Locations Periodof No Drilling UndevelopedLocationsPeriodofNoDrilling	P5Y
CY2012	eqt	Unrecognized Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost UnrecognizedDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	8100000	USD
CY2014Q4	eqt	Unrecognized Tax Benefit Threshold Percentage UnrecognizedTaxBenefitThresholdPercentage	0.5
CY2012Q4	eqt	Unrecognized Tax Benefits Deductible Timing Uncertainty UnrecognizedTaxBenefitsDeductibleTimingUncertainty	6400000	USD
CY2013Q4	eqt	Unrecognized Tax Benefits Deductible Timing Uncertainty UnrecognizedTaxBenefitsDeductibleTimingUncertainty	7600000	USD
CY2014Q4	eqt	Unrecognized Tax Benefits Deductible Timing Uncertainty UnrecognizedTaxBenefitsDeductibleTimingUncertainty	6900000	USD
CY2011Q4	eqt	Unrecognized Tax Benefits Excluding Interest And Penalties UnrecognizedTaxBenefitsExcludingInterestAndPenalties	30730000	USD
CY2012Q4	eqt	Unrecognized Tax Benefits Excluding Interest And Penalties UnrecognizedTaxBenefitsExcludingInterestAndPenalties	17858000	USD
CY2013Q4	eqt	Unrecognized Tax Benefits Excluding Interest And Penalties UnrecognizedTaxBenefitsExcludingInterestAndPenalties	57087000	USD
CY2014Q4	eqt	Unrecognized Tax Benefits Excluding Interest And Penalties UnrecognizedTaxBenefitsExcludingInterestAndPenalties	56957000	USD
CY2014	eqt	Wells Coveredunder Audit Number Maximum Non Operated Wells WellsCoveredunderAuditNumberMaximumNonOperatedWells	230	well
CY2014	eqt	Wells Coveredunder Audit Number Maximum Operated Wells WellsCoveredunderAuditNumberMaximumOperatedWells	200	well
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	330329000	USD
CY2014Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	444077000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	235781000	USD
CY2014Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	306085000	USD
CY2012	us-gaap	Accretion Of Discount AccretionOfDiscount	622072000	USD
CY2013	us-gaap	Accretion Of Discount AccretionOfDiscount	343502000	USD
CY2014	us-gaap	Accretion Of Discount AccretionOfDiscount	578676000	USD
CY2014Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	1300000	USD
CY2013Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	39073000	USD
CY2014Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	52035000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2728374000	USD
CY2014Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3531337000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	61699000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	217121000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	15864000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	16640000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	99547000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	44703000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	199494000	USD
CY2014Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	900000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	5371000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-1641000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	45821000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	58544000	USD
CY2014	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	50627000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5171000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5311000	USD
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	281528	shares
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2014	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	109034000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	116045000	USD
CY2014Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	140086000	USD
CY2013	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	8342000	USD
CY2014	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	9420000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	2510000	USD
CY2014	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	16953000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	3353000	USD
CY2014	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	14025000	USD
CY2013	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-488000	USD
CY2014	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	11693000	USD
CY2013Q4	us-gaap	Assets Assets	9792053000	USD
CY2014Q4	us-gaap	Assets Assets	12064900000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	1255425000	USD
CY2014Q4	us-gaap	Assets Current AssetsCurrent	1904323000	USD
CY2012Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	1572775000	USD
CY2013Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	2134953000	USD
CY2013Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	6017998000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	182055000	USD
CY2014Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	7389290000	USD
CY2013Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	0	USD
CY2014Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	9000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	831251000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	845641000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1077429000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-649196000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	663586000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	231788000	USD
CY2014Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	2874257000	USD
CY2012Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	6750343000	USD
CY2013Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	8152951000	USD
CY2014Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	10263547000	USD
CY2012Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	5177568000	USD
CY2014Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2014Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	36693000	shares
CY2012	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.88
CY2013	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2014	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2013Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2014Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	320000000	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	320000000	shares
CY2014Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	320000000	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	175684000	shares
CY2014Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	175384000	shares
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	1869843000	USD
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	1895632000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	94801000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	335728000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	541756000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	13016000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	47243000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	124025000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	107817000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	382971000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	665781000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	987593000	USD
CY2013	us-gaap	Costs And Expenses CostsAndExpenses	1227025000	USD
CY2014	us-gaap	Costs And Expenses CostsAndExpenses	1650461000	USD
CY2012	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	16965000	USD
CY2013	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	90390000	USD
CY2014	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	231322000	USD
CY2014	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	146476000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	56551000	USD
CY2012	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	117654000	USD
CY2013	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	95861000	USD
CY2014	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	493067000	USD
CY2012	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	850854000	USD
CY2013	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	1230301000	USD
CY2014	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	1697501000	USD
CY2012	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	4827000	USD
CY2013	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	4285000	USD
CY2014	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	16023000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3771000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	100796000	USD
CY2014	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	164935000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	4000000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	147554000	USD
CY2014	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	182071000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	229000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	46758000	USD
CY2014	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	17136000	USD
CY2012	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	807000	USD
CY2013	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	252000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	51767000	USD
CY2014	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	38357000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	67565000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	27827000	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	32021000	USD
CY2013Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1568356000	USD
CY2014Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1663949000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	11014000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-23940000	USD
CY2014	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-6336000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	2801000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	336394000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-1624760000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-1728936000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	31005000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	21934000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	612705000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	961556000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	358964000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	212718000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	29700000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	1100000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	88000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	118200000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	116000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	13300000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	15200000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	246157000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	412345000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	60863000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	65086000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	-256000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	-3146000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	56404000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	64987000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2237465000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2690492000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1655765000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1750870000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	-324000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	11338000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	28597000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	130770000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1018255000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1154082000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	21800000	USD
CY2014Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	21700000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	688000	USD
CY2013	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	223000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	229000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	32000	USD
CY2013	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	26000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	14000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	711000	USD
CY2013	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	220000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	228000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	32000	USD
CY2013	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	25000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	13000	USD
CY2014	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate DefinedBenefitPlanUltimateHealthCareCostTrendRate	0.0500
CY2013Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2014Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	12000000	USD
CY2013	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	14600000	USD
CY2014	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	13700000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	474617000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	653132000	USD
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	679298000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	107647000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	458460000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	29651000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	22942000	USD
CY2014Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	900000	USD
CY2014	us-gaap	Development Wells Drilled Net Productive DevelopmentWellsDrilledNetProductive	2	well
CY2012	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	81328000	USD
CY2013	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	251378000	USD
CY2014	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	2377000	USD
CY2012	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	33835000	USD
CY2013	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	159535000	USD
CY2014	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	1006000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	314821000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	332947000	USD
CY2014	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	0	USD
CY2012	us-gaap	Distribution Made To Limited Partner Distributions Paid Per Unit DistributionMadeToLimitedPartnerDistributionsPaidPerUnit	0.35
CY2013	us-gaap	Distribution Made To Limited Partner Distributions Paid Per Unit DistributionMadeToLimitedPartnerDistributionsPaidPerUnit	1.55
CY2014	us-gaap	Distribution Made To Limited Partner Distributions Paid Per Unit DistributionMadeToLimitedPartnerDistributionsPaidPerUnit	2.02
CY2012	us-gaap	Dividends Common Stock DividendsCommonStock	131803000	USD
CY2013	us-gaap	Dividends Common Stock DividendsCommonStock	18094000	USD
CY2014	us-gaap	Dividends Common Stock DividendsCommonStock	18207000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.23
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.76
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.59
CY2014Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.27
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2014Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2014Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.10
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.55
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.22
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.66
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.57
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.58
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.75
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.57
CY2014Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.26
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2014Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.10
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.54
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.324
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.336
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.296
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	15100000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	14400000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	45900000	USD
CY2013Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	19656000	USD
CY2014Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	4145000	USD
CY2014Q4	us-gaap	Equity Method Investment Summarized Financial Information Equity Or Capital EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital	0	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Liabilities And Equity EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity	266597000	USD
CY2014Q4	us-gaap	Equity Method Investment Summarized Financial Information Liabilities And Equity EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity	0	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Assets EquityMethodInvestmentSummarizedFinancialInformationAssets	266597000	USD
CY2014Q4	us-gaap	Equity Method Investment Summarized Financial Information Assets EquityMethodInvestmentSummarizedFinancialInformationAssets	0	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	27014000	USD
CY2014Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	0	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Liabilities EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities	8529000	USD
CY2014Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Liabilities EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities	0	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Equity Or Capital EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital	258068000	USD
CY2012	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	12292000	USD
CY2013	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	15230000	USD
CY2014	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	6769000	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Assets EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets	239583000	USD
CY2014Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Assets EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets	0	USD
CY2012	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	47888000	USD
CY2013	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	45040000	USD
CY2014	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	19924000	USD
CY2013Q4	us-gaap	Equity Method Investments EquityMethodInvestments	128983000	USD
CY2014Q4	us-gaap	Equity Method Investments EquityMethodInvestments	0	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	0	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	12251000	USD
CY2014	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	33216000	USD
CY2012	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	5500000	USD
CY2013	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	14200000	USD
CY2014	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	14600000	USD
CY2012	us-gaap	Exploration Expense ExplorationExpense	10370000	USD
CY2013	us-gaap	Exploration Expense ExplorationExpense	18483000	USD
CY2014	us-gaap	Exploration Expense ExplorationExpense	21716000	USD
CY2012	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	917986000	USD
CY2013	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	1509002000	USD
CY2014	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	2300923000	USD
CY2012Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	15250019000	USD
CY2013Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	25912542000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	30428815000	USD
CY2012Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	3082053000	USD
CY2013Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	4199722000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	5052195000	USD
CY2012Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	3324472000	USD
CY2013Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	6533817000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	7718407000	USD
CY2012Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	5772537000	USD
CY2013Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	10998867000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	12790134000	USD
CY2012Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	3070957000	USD
CY2013Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	4180136000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	4868079000	USD
CY2012Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	3617378000	USD
CY2013Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	7047588000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	7980106000	USD
CY2014Q2	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	28000000	USD
CY2012	us-gaap	Gain Loss On Price Risk Derivative Instruments Not Designated As Hedging Instruments GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments	2176000	USD
CY2013	us-gaap	Gain Loss On Price Risk Derivative Instruments Not Designated As Hedging Instruments GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments	2834000	USD
CY2014	us-gaap	Gain Loss On Price Risk Derivative Instruments Not Designated As Hedging Instruments GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments	80942000	USD
CY2012	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	0	USD
CY2013	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	19618000	USD
CY2014	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	34146000	USD
CY2012	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2013	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	19618000	USD
CY2014	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	34146000	USD
CY2012	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	134951000	USD
CY2013	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	148708000	USD
CY2014	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	202203000	USD
CY2012	us-gaap	Impairment Of Leasehold ImpairmentOfLeasehold	5543000	USD
CY2013	us-gaap	Impairment Of Leasehold ImpairmentOfLeasehold	14198000	USD
CY2014	us-gaap	Impairment Of Leasehold ImpairmentOfLeasehold	281979000	USD
CY2012	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2013	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2014Q4	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	267300000	USD
CY2014	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	267339000	USD
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	135902000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	69131000	USD
CY2013Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	81466000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	86199000	USD
CY2013Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	61933000	USD
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	298729000	USD
CY2014Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	192297000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	109045000	USD
CY2014Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	98555000	USD
CY2014Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-14303000	USD
CY2014	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	385594000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	220379000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	521158000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	723711000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	148918000	USD
CY2014Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.10
CY2014	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.54
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.90
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.46
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.54
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.57
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.40
CY2013	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.97
CY2013	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	345972000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	509619000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.91
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.46
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.54
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.57
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.41
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.98
CY2014Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.27
CY2014Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.72
CY2014Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.65
CY2014Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.26
CY2014Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.72
CY2014Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.65
CY2014Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.10
CY2014	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.53
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	47493000	USD
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	31124000	USD
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	5390000	USD
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2057000	USD
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	53272000	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	91843000	USD
CY2014Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-104000	USD
CY2014Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1876000	USD
CY2014Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2014Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-401000	USD
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1371000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.32
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.21
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.04
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.02
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.35
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.61
CY2014Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2014Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2014Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2014Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	175186000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	214092000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	77133000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	182406000	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	253299000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-3970000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.32
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.20
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.03
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.35
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.60
CY2014Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2014Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2014Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2014Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6100000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	7600000	USD
CY2014	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	3400000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	71461000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-6865000	USD
CY2014	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-2818000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2869000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	16180000	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7020000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	4571000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	16535000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	43409000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	27605000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	163703000	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	204818000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	20624000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	15990000	USD
CY2014	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	30350000	USD
CY2012	us-gaap	Increase Decrease In Dividends Receivable IncreaseDecreaseInDividendsReceivable	-12750000	USD
CY2013	us-gaap	Increase Decrease In Dividends Receivable IncreaseDecreaseInDividendsReceivable	-9000000	USD
CY2014	us-gaap	Increase Decrease In Dividends Receivable IncreaseDecreaseInDividendsReceivable	-9463000	USD
CY2012	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	548852000	USD
CY2013	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	1319135000	USD
CY2014	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	1023075000	USD
CY2012	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	1127272000	USD
CY2013	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-1031105000	USD
CY2014	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-529337000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-43277000	USD
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-30090000	USD
CY2014	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-15511000	USD
CY2012	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	48364000	USD
CY2013	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	44818000	USD
CY2014	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	70392000	USD
CY2012	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	0	USD
CY2013	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	348608000	USD
CY2014	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	72139000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	887000	shares
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1213000	shares
CY2014	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	960000	shares
CY2012	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	15600000	USD
CY2013	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	22900000	USD
CY2014	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	35000000	USD
CY2012	us-gaap	Interest Expense InterestExpense	184786000	USD
CY2013	us-gaap	Interest Expense InterestExpense	142688000	USD
CY2014	us-gaap	Interest Expense InterestExpense	136537000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	187884000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	143187000	USD
CY2014	us-gaap	Interest Paid Net InterestPaidNet	128567000	USD
CY2013Q4	us-gaap	Interest Payable Current InterestPayableCurrent	29379000	USD
CY2014Q4	us-gaap	Interest Payable Current InterestPayableCurrent	37349000	USD
CY2012	us-gaap	Inventory Write Down InventoryWriteDown	7000000	USD
CY2013	us-gaap	Inventory Write Down InventoryWriteDown	400000	USD
CY2014	us-gaap	Inventory Write Down InventoryWriteDown	3200000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	45000000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	56000000	USD
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	65600000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	4927925000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	5691837000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9792053000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12064900000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	523410000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	833479000	USD
CY2013	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	12100000	USD
CY2013	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.017
CY2013	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	178500000	USD
CY2014Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	1500000000.0	USD
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	2501516000	USD
CY2014Q4	us-gaap	Long Term Debt LongTermDebt	2988900000	USD
CY2013Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	11162000	USD
CY2014Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	166011000	USD
CY2013Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	2800000000	USD
CY2014Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	3300000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	166000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	3000000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2490354000	USD
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2822889000	USD
CY2013Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	300000	USD
CY2014Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	100000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	829340000	USD
CY2014Q4	us-gaap	Minority Interest MinorityInterest	1790248000	USD
CY2012	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	5031000	USD
CY2013	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	32781000	USD
CY2014	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	67819000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-75520000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	500500000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1261258000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1370498000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-999775000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2444212000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	796822000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1162861000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1414742000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	13016000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	47243000	USD
CY2014	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	124025000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	183395000	USD
CY2013Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	100255000	USD
CY2013Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	86856000	USD
CY2013Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	88256000	USD
CY2013Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	115205000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	390572000	USD
CY2014Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	192193000	USD
CY2014Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	110921000	USD
CY2014Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	98555000	USD
CY2014Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-14704000	USD
CY2014	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	386965000	USD
CY2012	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-3530086000	USD
CY2013	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-292533000	USD
CY2014	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-1525944000	USD
CY2012	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	276780000	USD
CY2013	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	529442000	USD
CY2014	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	902467000	USD
CY2014	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2012	us-gaap	Oil And Gas Revenue OilAndGasRevenue	1377222000	USD
CY2013Q1	us-gaap	Oil And Gas Revenue OilAndGasRevenue	415883000	USD
CY2013Q2	us-gaap	Oil And Gas Revenue OilAndGasRevenue	473093000	USD
CY2013Q3	us-gaap	Oil And Gas Revenue OilAndGasRevenue	479606000	USD
CY2013Q4	us-gaap	Oil And Gas Revenue OilAndGasRevenue	493429000	USD
CY2013	us-gaap	Oil And Gas Revenue OilAndGasRevenue	1862011000	USD
CY2014Q1	us-gaap	Oil And Gas Revenue OilAndGasRevenue	661625000	USD
CY2014Q2	us-gaap	Oil And Gas Revenue OilAndGasRevenue	526168000	USD
CY2014Q3	us-gaap	Oil And Gas Revenue OilAndGasRevenue	578723000	USD
CY2014Q4	us-gaap	Oil And Gas Revenue OilAndGasRevenue	703194000	USD
CY2014	us-gaap	Oil And Gas Revenue OilAndGasRevenue	2469710000	USD
CY2012	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	99257000	USD
CY2013	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	97762000	USD
CY2014	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	108283000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	389629000	USD
CY2013Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	144479000	USD
CY2013Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	161980000	USD
CY2013Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	167064000	USD
CY2013Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	181081000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	654604000	USD
CY2014Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	356791000	USD
CY2014Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	224771000	USD
CY2014Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	231503000	USD
CY2014Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	40330000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	853395000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	225600000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	83400000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	9600000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	16800000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	31700000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	37400000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	46700000	USD
CY2013Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	56400000	USD
CY2014Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	65000000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	18763000	USD
CY2014Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	40239000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	73883000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	83763000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	12750000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	156207000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-93878000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-76489000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	155422000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-61757000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-50200000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	102850000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-88594000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-54844000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	154791000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	1085000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-21501000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	776000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1992000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-16115000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	515000	USD
CY2013Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	152268000	USD
CY2014Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	200449000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	258396000	USD
CY2014Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	284599000	USD
CY2012	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	15965000	USD
CY2013	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	9508000	USD
CY2014	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	6853000	USD
CY2012	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	15536000	USD
CY2013	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	9242000	USD
CY2014	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	6853000	USD
CY2012	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-64386000	USD
CY2013	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	46115000	USD
CY2014	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	31901000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2014	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	32368000	USD
CY2012	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	4022000	USD
CY2013	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2014	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	12764000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	131803000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	18094000	USD
CY2014	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	18207000	USD
CY2012	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	5031000	USD
CY2013	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	32781000	USD
CY2014	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	67819000	USD
CY2012	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2013	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2014	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	51262000	USD
CY2012	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1370640000	USD
CY2013	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1796876000	USD
CY2014	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2900186000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	0	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	114224000	USD
CY2014	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	174184000	USD
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3000000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3000000	shares
CY2014Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2014Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2013Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	46700000	USD
CY2014Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	58204000	USD
CY2014Q4	us-gaap	Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next12 Months PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months	153200000	USD
CY2013	us-gaap	Proceeds And Excess Tax Benefit From Sharebased Compensation ProceedsAndExcessTaxBenefitFromSharebasedCompensation	45137000	USD
CY2014	us-gaap	Proceeds And Excess Tax Benefit From Sharebased Compensation ProceedsAndExcessTaxBenefitFromSharebasedCompensation	52373000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Limited Partners Units ProceedsFromIssuanceOfCommonLimitedPartnersUnits	276780000	USD
CY2012	us-gaap	Prior Period Reclassification Adjustment PriorPeriodReclassificationAdjustment	11700000	USD
CY2013	us-gaap	Prior Period Reclassification Adjustment PriorPeriodReclassificationAdjustment	37500000	USD
CY2012	us-gaap	Proceeds And Excess Tax Benefit From Sharebased Compensation ProceedsAndExcessTaxBenefitFromSharebasedCompensation	7871000	USD
CY2013Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2014Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2013	us-gaap	Proceeds From Issuance Of Common Limited Partners Units ProceedsFromIssuanceOfCommonLimitedPartnersUnits	529442000	USD
CY2014	us-gaap	Proceeds From Issuance Of Common Limited Partners Units ProceedsFromIssuanceOfCommonLimitedPartnersUnits	902467000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2014	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	500000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	7900000	USD
CY2013	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	32900000	USD
CY2014	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	19200000	USD
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	USD
CY2013	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	178500000	USD
CY2014	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	450000000	USD
CY2012	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	4842000	USD
CY2013	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	740587000	USD
CY2014	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	7444000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	196411000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	437815000	USD
CY2014	us-gaap	Profit Loss ProfitLoss	510990000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	11062136000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	13608151000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	8333762000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10076814000	USD
CY2014Q4	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	15300000	Mcfe
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-1235000	USD
CY2013	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2957000	USD
CY2014	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	88000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	6800000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	1200000	USD
CY2014	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	3200000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	3900000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	4300000	USD
CY2014	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	5800000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2567980000	USD
CY2013	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	67594000	USD
CY2014	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-15319000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	219315000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	23204000	USD
CY2014	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	11162000	USD
CY2012	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	0	USD
CY2013	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	178500000	USD
CY2014	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	450000000	USD
CY2014	us-gaap	Results Of Operations Impairment Of Oil And Gas Properties ResultsOfOperationsImpairmentOfOilAndGasProperties	180700000	USD
CY2012	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	96155000	USD
CY2013	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	108091000	USD
CY2014	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	133488000	USD
CY2012	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	697618000	USD
CY2013	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	1060566000	USD
CY2014	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	1479242000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	172243000	USD
CY2013	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	200849000	USD
CY2014	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	238134000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	40230000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2917129000	USD
CY2012	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-876336000	USD
CY2013	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	106170000	USD
CY2014	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-222195000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	52618000	USD
CY2014	us-gaap	Share Based Compensation ShareBasedCompensation	42123000	USD
CY2012	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	111000000	USD
CY2013	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	554159000	USD
CY2014	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	787130000	USD
CY2012	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	-1777665000	USD
CY2013	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	1796120000	USD
CY2014	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	858749000	USD
CY2011Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	3932824000	USD
CY2012Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	2155159000	USD
CY2013Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	3951279000	USD
CY2014Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	4810028000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	41838000	USD
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	115429000	USD
CY2014	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	59081000	USD
CY2014	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	32368000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	4034788000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	4582815000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3593830000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3888802000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4864128000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6373063000	USD
CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	24800000	shares
CY2014Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	23788000	shares
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	447738000	USD
CY2014Q4	us-gaap	Treasury Stock Value TreasuryStockValue	429440000	USD
CY2012	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-75000	USD
CY2013	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-21335000	USD
CY2014	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	24774000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	9800000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	10100000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	12235000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	790000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1418000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	500000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	200000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2165000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	49289000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1195000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2320000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	93000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-1800000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-400000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	1900000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	5122000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	9270000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	5300000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	33300000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	33900000	USD
CY2013Q4	us-gaap	Value Of Properties Other Than That Attributable To Proved Reserves ValueOfPropertiesOtherThanThatAttributableToProvedReserves	450200000	USD
CY2014Q4	us-gaap	Value Of Properties Other Than That Attributable To Proved Reserves ValueOfPropertiesOtherThanThatAttributableToProvedReserves	824500000	USD
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	150506000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151787000	shares
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	152513000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	149619000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150574000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	151553000	shares
CY2014	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Reclassification:</font><font style="font-family:inherit;font-size:10pt;"> Certain previously reported amounts have been reclassified to conform to the current year presentation. Additionally, financial statements and notes to the financial statements previously reported in prior periods have been recast to reflect the presentation of discontinued operations as a result of the Equitable Gas Transaction. Refer to Note 2 for additional information on discontinued operations.</font></div><div style="line-height:120%;text-align:justify;text-indent:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain prior year amounts in the Statements of Consolidated Cash Flows have been revised to correctly present changes in accrued liabilities related to the timing of payments for capital expenditures. For the year ended December 31, 2013, net cash provided by operating activities decreased by approximately </font><font style="font-family:inherit;font-size:10pt;">$37.5 million</font><font style="font-family:inherit;font-size:10pt;"> with a corresponding decrease in net cash used in investing activities as a result of this correction, and for the year ended December 31, 2012, net cash provided by operating activities decreased by </font><font style="font-family:inherit;font-size:10pt;">$11.7 million</font><font style="font-family:inherit;font-size:10pt;"> with a corresponding decrease in net cash used in investing activities. The correction had no impact on the Statements of Consolidated Income or Consolidated Balance Sheets.</font></div></div>
CY2014	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates:</font><font style="font-family:inherit;font-size:10pt;">  The preparation of financial statements in conformity with United States generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and accompanying notes.  Actual results could differ from those estimates.</font></div></div>

Files In Submission

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$EQT
EQT Corp Stock $eqt

2014 Form 10-K Financial Statement

#000003321315000004 Filed on February 12, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EQT EQT Corp Stock $eqt

2014 Form 10-K Financial Statement

#000003321315000004 Filed on February 12, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EQT
EQT Corp Stock $eqt