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CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (USD $) In Thousands, unless otherwise specified	Total		Convertible Perpetual Preferred Stock	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Deficit	Non-controlling Interest
Beginning Balance at Dec. 31, 2013	$ 3,175,627us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest		$ 8us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember	$ 483us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	$ 5,294,551us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	$ (8,770)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember	$ (3,460,462)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember	$ 1,349,817us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Beginning Balance (in shares) at Dec. 31, 2013	490,290us-gaap_CommonStockSharesOutstanding			490,290us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Beginning Balance (in shares) at Dec. 31, 2013			7,650us-gaap_PreferredStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember
Increase (Decrease) in Stockholders' Equity
Acquisition of ownership interest	(2,730)us-gaap_MinorityInterestDecreaseFromRedemptions				(2,074)us-gaap_MinorityInterestDecreaseFromRedemptions / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember			(656)us-gaap_MinorityInterestDecreaseFromRedemptions / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Sale of royalty trust units	22,119us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest				4,091us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember			18,028us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Distributions to noncontrolling interest owners	(53,118)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders							(53,118)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Purchase of treasury stock	(3,677)us-gaap_TreasuryStockValueAcquiredCostMethod					(3,677)us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Retirement of treasury stock	0us-gaap_TreasuryStockRetiredCostMethodAmount				(3,677)us-gaap_TreasuryStockRetiredCostMethodAmount / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	3,677us-gaap_TreasuryStockRetiredCostMethodAmount / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Stock distributions, net of purchases - retirement plans (in shares)				251sd_TreasuryStockNonqualifiedPlanShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Stock distributions, net of purchases - retirement plans	(159)sd_TreasuryStockNonqualifiedPlanValue				(2,031)sd_TreasuryStockNonqualifiedPlanValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	1,872sd_TreasuryStockNonqualifiedPlanValue / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Stock-based compensation	7,441us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue				7,441us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember
Stock-based compensation excess tax benefit	2us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation				2us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember
Issuance of restricted stock awards, net of cancellations (in shares)				4,110us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Issuance of restricted stock awards, net of cancellations	0us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures			2us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	(2)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember
Net loss	(142,406)us-gaap_ProfitLoss	[1]					(136,336)us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember	(6,070)us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Convertible perpetual preferred stock dividends	(13,881)us-gaap_DividendsPreferredStock						(13,881)us-gaap_DividendsPreferredStock / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember
Ending Balance at Mar. 31, 2014	$ 2,989,218us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest		$ 8us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember	$ 485us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	$ 5,298,301us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	$ (6,898)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember	$ (3,610,679)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember	$ 1,308,001us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Ending Balance (in shares) at Mar. 31, 2014	494,651us-gaap_CommonStockSharesOutstanding			494,651us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Ending Balance (in shares) at Mar. 31, 2014			7,650us-gaap_PreferredStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember
[1] Guarantor and Consolidated direct operating expenses have been restated to reflect accrual of the CO2 delivery shortfall penalty. See Note 2.

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