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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 | $ 3,175,627 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |  | $ 8 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember | $ 483 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 5,294,551 us-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 | $ 1,349,817 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Beginning Balance (in shares) at Dec. 31, 2013 | 490,290 us-gaap_CommonStockSharesOutstanding |  |  | 490,290 us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Beginning Balance (in shares) at Dec. 31, 2013 |  |  | 7,650 us-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 | 22,119 us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest |  |  |  | 4,091 us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 18,028 us-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 | 0 us-gaap_TreasuryStockRetiredCostMethodAmount |  |  |  | (3,677)us-gaap_TreasuryStockRetiredCostMethodAmount / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 3,677 us-gaap_TreasuryStockRetiredCostMethodAmount / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |  |
Stock distributions, net of purchases - retirement plans (in shares) |  |  |  | 251 sd_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 | 1,872 sd_TreasuryStockNonqualifiedPlanValue / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |  |
Stock-based compensation | 7,441 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue |  |  |  | 7,441 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Stock-based compensation excess tax benefit | 2 us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation |  |  |  | 2 us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Issuance of restricted stock awards, net of cancellations (in shares) |  |  |  | 4,110 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of restricted stock awards, net of cancellations | 0 us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures |  |  | 2 us-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 | $ 2,989,218 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |  | $ 8 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember | $ 485 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 5,298,301 us-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 | $ 1,308,001 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Ending Balance (in shares) at Mar. 31, 2014 | 494,651 us-gaap_CommonStockSharesOutstanding |  |  | 494,651 us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Ending Balance (in shares) at Mar. 31, 2014 |  |  | 7,650 us-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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