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Variable Interest Entities - Royalty Trusts - Assets and Liabilities Included in Consolidated Balance Sheets (Details) (USD $) | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | --- | ---
Variable Interest Entity [Line Items] |  |  |  |  |  |
Cash and cash equivalents | $ 181,253,000 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | $ 814,663,000 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | $ 309,766,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 207,681,000 us-gaap_CashAndCashEquivalentsAtCarryingValue
Accounts receivable | 330,077,000 us-gaap_AccountsReceivableNetCurrent |  | 349,218,000 us-gaap_AccountsReceivableNetCurrent |  |  |
Derivative contracts | 291,414,000 us-gaap_DerivativeAssetsCurrent |  | 12,779,000 us-gaap_DerivativeAssetsCurrent |  |  |
Total current assets | 831,918,000 us-gaap_AssetsCurrent |  | 1,241,823,000 us-gaap_AssetsCurrent |  |  |
Investment in royalty interests | 11,997,743,000 us-gaap_OilAndGasPropertyFullCostMethodGross |  | 11,504,422,000 us-gaap_OilAndGasPropertyFullCostMethodGross |  | 13,128,784,000 us-gaap_OilAndGasPropertyFullCostMethodGross |
Less: accumulated depletion | (6,359,149,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities |  | (5,762,969,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities |  | (5,231,182,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities |
Investment in royalty interests, net | 5,638,594,000 us-gaap_OilAndGasPropertyFullCostMethodNet |  | 5,741,453,000 us-gaap_OilAndGasPropertyFullCostMethodNet |  | 7,897,602,000 us-gaap_OilAndGasPropertyFullCostMethodNet |
Derivative contracts | 47,003,000 us-gaap_DerivativeAssetsNoncurrent |  | 14,126,000 us-gaap_DerivativeAssetsNoncurrent |  |  |
Accounts payable and accrued expenses | 683,392,000 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent |  | 812,488,000 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent |  |  |
Royalty Trusts |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |
Cash and cash equivalents | 9,387,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | [1] | 7,912,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | [1] |  |
Accounts receivable | 17,660,000 us-gaap_AccountsReceivableNetCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 22,540,000 us-gaap_AccountsReceivableNetCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Derivative contracts | 6,589,000 us-gaap_DerivativeAssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 4,983,000 us-gaap_DerivativeAssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Total current assets | 33,636,000 us-gaap_AssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 35,435,000 us-gaap_AssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Investment in royalty interests | 1,325,942,000 us-gaap_OilAndGasPropertyFullCostMethodGross / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | [2] | 1,325,942,000 us-gaap_OilAndGasPropertyFullCostMethodGross / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember | [2] |  |
Less: accumulated depletion | (284,094,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | (186,095,000)us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Investment in royalty interests, net | 1,041,848,000 us-gaap_OilAndGasPropertyFullCostMethodNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 1,139,847,000 us-gaap_OilAndGasPropertyFullCostMethodNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Derivative contracts | 0 us-gaap_DerivativeAssetsNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 1,476,000 us-gaap_DerivativeAssetsNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Total assets | 1,075,484,000 us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 1,176,758,000 us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Accounts payable and accrued expenses | 2,852,000 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | 3,393,000 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
Total liabilities | $ 2,852,000 us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  | $ 3,393,000 us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = sd_RoyaltyTrustMember |  |  |
[1] | Includes $3.0 million held by the trustee at December 31, 2014 and 2013 as reserves for future general and administrative expenses.
[2] | Investment in royalty interests is included in oil and natural gas properties in the accompanying consolidated balance sheets.

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