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Derivative Financial Instruments (Schedule Of Gas Processing and Fractionation Open Positions) (Details) | 12 Months Ended
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Dec. 31, 2014 MBbls
OPIS Mont Belvieu Texas Ethane Basis Swap Q1 2015 - Q4 2016 [Member] |
Derivative [Line Items] |
Volume (MBbls) | 1,168 us-gaap_DerivativeNonmonetaryNotionalAmountVolume / us-gaap_DerivativeInstrumentRiskAxis = dvn_OpisMontBelvieuTexasEthaneBasisSwapQuarterOne2015ThroughQuarterFour2016Member
Weighted average price paid | Index
Weighted average price received | $0.29/gal
OPIS Mont Belvieu Texas Propane Basis Swap Q1 2015 - Q4 2016 [Member] |
Derivative [Line Items] |
Volume (MBbls) | 1,171 us-gaap_DerivativeNonmonetaryNotionalAmountVolume / us-gaap_DerivativeInstrumentRiskAxis = dvn_OpisMontBelvieuTexasPropaneBasisSwapQuarterOne2015ThroughQuarterFour2016Member
Weighted average price paid | Index
Weighted average price received | $1.01/gal
OPIS Mont Belvieu Texas Normal Butane Basis Swap Q1 - Q4 2015 [Member] |
Derivative [Line Items] |
Volume (MBbls) | 53 us-gaap_DerivativeNonmonetaryNotionalAmountVolume / us-gaap_DerivativeInstrumentRiskAxis = dvn_OpisMontBelvieuTexasNormalButaneBasisSwapQuarterOneThroughQuarterFour2015Member
Weighted average price paid | Index
Weighted average price received | $1.14/gal
OPIS Mont Belvieu Texas Natural Gasoline Basis Swap Q1 - Q4 2015 [Member] |
Derivative [Line Items] |
Volume (MBbls) | 44 us-gaap_DerivativeNonmonetaryNotionalAmountVolume / us-gaap_DerivativeInstrumentRiskAxis = dvn_OpisMontBelvieuTexasNaturalGasolineBasisSwapQuarterOneThroughQuarterFour2015Member
Weighted average price paid | Index
Weighted average price received | $1.81/gal
Henry Hub Natural Gas Basis Swap Q1 - Q4 2015 [Member] |
Derivative [Line Items] |
Volume Per Day (MMBtu/d) | 1,225 us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure / us-gaap_DerivativeInstrumentRiskAxis = dvn_HenryHubNaturalGasBasisSwapQuarterOneThroughQuarterFour2015Member
Weighted average price paid | $4.08/MMBtu
Weighted average price received | Index

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