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Condensed Consolidating Financial Information - Condensed Consolidating Statements of Operations of SandRidge Energy, Inc. and Wholly Owned Subsidiary Guarantors and Non-Guarantors' (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 346,881,000 us-gaap_Revenues |  | $ 394,107,000 us-gaap_Revenues |  | $ 374,714,000 us-gaap_Revenues |  | $ 443,056,000 us-gaap_Revenues |  | $ 465,108,000 us-gaap_Revenues |  | $ 493,603,000 us-gaap_Revenues |  | $ 512,987,000 us-gaap_Revenues |  | $ 511,690,000 us-gaap_Revenues |  | $ 1,558,758,000 us-gaap_Revenues | $ 1,983,388,000 us-gaap_Revenues | $ 1,934,642,000 us-gaap_Revenues
Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 483,889,000 us-gaap_DirectOperatingCosts | 682,830,000 us-gaap_DirectOperatingCosts | 635,349,000 us-gaap_DirectOperatingCosts
General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 122,865,000 us-gaap_GeneralAndAdministrativeExpense | 330,425,000 us-gaap_GeneralAndAdministrativeExpense | 241,682,000 us-gaap_GeneralAndAdministrativeExpense
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 503,023,000 sd_DepreciationDepletionAmortizationAndAccretion | 666,645,000 sd_DepreciationDepletionAmortizationAndAccretion | 657,830,000 sd_DepreciationDepletionAmortizationAndAccretion
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 192,768,000 us-gaap_AssetImpairmentCharges | 26,280,000 us-gaap_AssetImpairmentCharges | 316,004,000 us-gaap_AssetImpairmentCharges
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (334,011,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet | 47,123,000 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet | (241,419,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Loss on sale of assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment | 399,086,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment | 3,089,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Total expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 968,534,000 us-gaap_CostsAndExpenses | 2,152,389,000 us-gaap_CostsAndExpenses | 1,609,446,000 us-gaap_CostsAndExpenses
(Loss) income from operations | 373,984,000 us-gaap_OperatingIncomeLoss | [1],[2] | 256,491,000 us-gaap_OperatingIncomeLoss | [1],[2] | 42,079,000 us-gaap_OperatingIncomeLoss | [1],[2] | (82,330,000)us-gaap_OperatingIncomeLoss | [1],[2] | 122,261,000 us-gaap_OperatingIncomeLoss | [3],[4],[5] | (2,166,000)us-gaap_OperatingIncomeLoss | [3],[4],[5] | 78,386,000 us-gaap_OperatingIncomeLoss | [3],[4],[5] | (367,482,000)us-gaap_OperatingIncomeLoss | [3],[4],[5] | 590,224,000 us-gaap_OperatingIncomeLoss | (169,001,000)us-gaap_OperatingIncomeLoss | 325,196,000 us-gaap_OperatingIncomeLoss
Equity earnings from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 sd_NetIncomeLossFromSubsidiaries | 0 sd_NetIncomeLossFromSubsidiaries | 0 sd_NetIncomeLossFromSubsidiaries
Interest (expense) income, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (244,109,000)us-gaap_InterestIncomeExpenseNet | (270,234,000)us-gaap_InterestIncomeExpenseNet | (303,349,000)us-gaap_InterestIncomeExpenseNet
Bargain purchase gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount | 0 us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount | 122,696,000 us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt | (82,005,000)us-gaap_GainsLossesOnExtinguishmentOfDebt | (3,075,000)us-gaap_GainsLossesOnExtinguishmentOfDebt
Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,490,000 us-gaap_OtherNonoperatingIncomeExpense | 12,445,000 us-gaap_OtherNonoperatingIncomeExpense | 4,741,000 us-gaap_OtherNonoperatingIncomeExpense
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 349,605,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (508,795,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 146,209,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Income tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (2,293,000)us-gaap_IncomeTaxExpenseBenefit | 5,684,000 us-gaap_IncomeTaxExpenseBenefit | (100,362,000)us-gaap_IncomeTaxExpenseBenefit
Net income | 314,057,000 us-gaap_ProfitLoss | [1],[2] | 197,499,000 us-gaap_ProfitLoss | [1],[2] | (17,252,000)us-gaap_ProfitLoss | [1],[2] | (142,406,000)us-gaap_ProfitLoss | [1],[2] | 73,379,000 us-gaap_ProfitLoss | [3],[4],[5] | (65,256,000)us-gaap_ProfitLoss | [3],[4],[5] | 16,613,000 us-gaap_ProfitLoss | [3],[4],[5] | (539,215,000)us-gaap_ProfitLoss | [3],[4],[5] | 351,898,000 us-gaap_ProfitLoss | (514,479,000)us-gaap_ProfitLoss | 246,571,000 us-gaap_ProfitLoss
Less: net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 98,613,000 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | 39,410,000 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | 105,000,000 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Net income attributable to SandRidge Energy, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 253,285,000 us-gaap_NetIncomeLoss | (553,889,000)us-gaap_NetIncomeLoss | 141,571,000 us-gaap_NetIncomeLoss
Parent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 331,000 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 329,000 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 367,000 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Loss on sale of assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Total expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 331,000 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 329,000 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 367,000 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
(Loss) income from operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (331,000)us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (329,000)us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (367,000)us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Equity earnings from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 495,154,000 sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (195,118,000)sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 347,715,000 sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Interest (expense) income, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (244,209,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (271,193,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (303,510,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Bargain purchase gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (82,005,000)us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (3,075,000)us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 250,614,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (548,645,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 40,763,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (2,671,000)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 5,244,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (100,808,000)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 253,285,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (553,889,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 141,571,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Less: net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income attributable to SandRidge Energy, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 253,285,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (553,889,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 141,571,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Guarantors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,341,531,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 1,675,481,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 1,638,741,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 467,175,000 us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 654,080,000 us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 596,028,000 us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 118,249,000 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 323,808,000 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 235,102,000 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 446,149,000 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 581,435,000 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 570,786,000 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 150,125,000 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 15,038,000 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 236,671,000 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (292,733,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 24,702,000 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (198,732,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Loss on sale of assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 291,743,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Total expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 888,965,000 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 1,890,806,000 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 1,439,855,000 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
(Loss) income from operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 452,566,000 us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (215,325,000)us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 198,886,000 us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Equity earnings from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 38,967,000 sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 3,075,000 sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 20,667,000 sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Interest (expense) income, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 959,000 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 725,000 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Bargain purchase gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 122,696,000 us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,521,000 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 16,173,000 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 4,741,000 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 495,154,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (195,118,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 347,715,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Income tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 495,154,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (195,118,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 347,715,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Less: net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Net income attributable to SandRidge Energy, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 495,154,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (195,118,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 347,715,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Non-Guarantors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 217,367,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 308,300,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 404,418,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,854,000 us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 29,143,000 us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 146,416,000 us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,285,000 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 6,288,000 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 7,635,000 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 56,874,000 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 85,210,000 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 87,044,000 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 42,643,000 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 11,242,000 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 79,333,000 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (41,278,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 22,421,000 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (42,687,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Loss on sale of assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 107,343,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Total expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 79,378,000 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 261,647,000 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 277,741,000 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
(Loss) income from operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 137,989,000 us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 46,653,000 us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 126,677,000 us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Equity earnings from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Interest (expense) income, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (564,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Bargain purchase gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (31,000)us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (3,728,000)us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 137,958,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 42,925,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 126,113,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Income tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 378,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 440,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 446,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 137,580,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 42,485,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 125,667,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Less: net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income attributable to SandRidge Energy, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 137,580,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 42,485,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 125,667,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Eliminations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (140,000)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (393,000)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (108,517,000)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (140,000)us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (393,000)us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (107,095,000)us-gaap_DirectOperatingCosts / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (1,422,000)us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 sd_DepreciationDepletionAmortizationAndAccretion / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
(Gain) loss on derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Loss on sale of assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Total expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (140,000)us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (393,000)us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (108,517,000)us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
(Loss) income from operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Equity earnings from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (534,121,000)sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 192,043,000 sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (368,382,000)sd_NetIncomeLossFromSubsidiaries / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Interest (expense) income, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Bargain purchase gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Other income (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (534,121,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 192,043,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (368,382,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Income tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (534,121,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 192,043,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (368,382,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Less: net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 98,613,000 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 39,410,000 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 105,000,000 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net income attributable to SandRidge Energy, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (632,734,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | $ 152,633,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | $ (473,382,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
[1] | Includes loss (gain) on derivative contracts of $42.5 million, $85.3 million, $(132.6) million and $(329.2) million for the first, second, third and fourth quarters, respectively.
[2] | Includes a full cost ceiling limitation impairment of $164.8 million in the first quarter and impairments of drilling assets of $3.1 million and $24.3 million in the second and fourth quarters, respectively.
[3] | Includes a $10.6 million impairment of various drilling assets and a $2.9 million impairment of a corporate asset in the second quarter of 2013 and a $2.1 million and $10.0 million impairment of certain midstream inventory, natural gas compressors, gas treating plants and a CO2 compression station in the second and fourth quarters of 2013, respectively.
[4] | Includes loss (gain) on derivative contracts of $40.9 million, $(103.7) million, $132.8 million and $(22.9) million for the first, second, third and fourth quarters, respectively.
[5] | Includes loss on sale of Permian Properties of $398.9 million in the first quarter of 2013.

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