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Supplemental Cash Flow Information (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Supplemental Disclosure of Cash Flow Information      
Cash paid for interest, net of amounts capitalized $ (274,850)us-gaap_InterestPaidNet $ (257,152)us-gaap_InterestPaidNet $ (224,127)us-gaap_InterestPaidNet
Cash paid for income taxes (4,610)us-gaap_IncomeTaxesPaidNet (1,324)us-gaap_IncomeTaxesPaidNet (2,083)us-gaap_IncomeTaxesPaidNet
Supplemental Disclosure of Noncash Investing and Financing Activities      
Deposit on pending sale (255,000)us-gaap_IncreaseDecreaseInRestrictedCash 255,000us-gaap_IncreaseDecreaseInRestrictedCash 0us-gaap_IncreaseDecreaseInRestrictedCash
Change in accrued capital expenditures 72,848sd_ChangeInAccruedCapitalExpenditures (77,610)sd_ChangeInAccruedCapitalExpenditures (114,388)sd_ChangeInAccruedCapitalExpenditures
Asset retirement costs capitalized 5,078us-gaap_AssetRetirementObligationLiabilitiesIncurred 7,479us-gaap_AssetRetirementObligationLiabilitiesIncurred 5,716us-gaap_AssetRetirementObligationLiabilitiesIncurred
Common stock issued in connection with acquisition $ 0us-gaap_StockIssuedDuringPeriodValueAcquisitions $ 542,138us-gaap_StockIssuedDuringPeriodValueAcquisitions $ 0us-gaap_StockIssuedDuringPeriodValueAcquisitions