$SD
SANDRIDGE ENERGY INC Stock $sd

$sd Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000134943614000063 Filed on February 28, 2014

Income Statement

Concept	2012 Q4	2012 Q3	2012 Q2
Revenue	$1.338B	$532.8M	$478.4M
YoY Change	257.94%	46.47%	31.16%
Cost Of Revenue	$173.6M	$15.67M	$19.24M
YoY Change	41.71%	-87.74%	-85.01%
Gross Profit	$368.2M	$517.1M	$459.2M
YoY Change	46.52%	119.12%	94.33%
Gross Profit Margin	27.52%	97.06%	95.98%
Selling, General & Admin	$82.90M	$46.80M	$61.70M
YoY Change	105.71%	28.93%	63.66%
% of Gross Profit	22.51%	9.05%	13.44%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$190.0M	$182.6M	$154.6M
YoY Change	87.75%	86.33%	77.5%
% of Gross Profit	51.6%	35.31%	33.67%
Operating Expenses	$282.2M	$238.5M	$466.9M
YoY Change	96.11%	74.73%	267.06%
Operating Profit	-$209.7M	-$75.87M	$762.4M
YoY Change	-38.23%	-110.89%	172.57%
Interest Expense	-$66.20M	-$275.4M	$601.3M
YoY Change	-86.82%	-151.22%	455.22%
% of Operating Profit			78.87%
Other Income/Expense, Net	$1.100M	-$83.71M	$54.05M
YoY Change	-56.0%	40.39%	-184.98%
Pretax Income	-$294.5M	-$159.6M	$816.5M
YoY Change	-25.31%	-125.05%	277.79%
Income Tax	$0.00	$173.0K	-$100.6M
% Of Pretax Income			-12.32%
Net Earnings	-$294.5M	-$170.4M	$818.1M
YoY Change	-25.33%	-129.63%	289.53%
Net Earnings / Revenue	-22.01%	-31.99%	170.99%
Basic Earnings Per Share	-$0.63	-$0.39	$1.74
Diluted Earnings Per Share	-$0.63	-$0.39	$1.46
COMMON SHARES
Basic Shares Outstanding	490.5M shares	476.0M shares	461.0M shares
Diluted Shares Outstanding		476.0M shares	560.6M shares

Balance Sheet

Concept	2012 Q4	2012 Q3	2012 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$309.8M	$673.7M	$421.1M
YoY Change	49.16%	107.04%	9054.35%
Cash & Equivalents	$309.8M	$673.7M	$421.1M
Short-Term Investments
Other Short-Term Assets	$19.04M	$15.62M	$14.71M
YoY Change	591.22%	-86.59%	-4.5%
Inventory	$3.618M	$3.343M	$4.055M
Prepaid Expenses	$31.32M	$37.19M	$33.65M
Receivables	$445.5M	$382.1M	$288.3M
Other Receivables	$4.600M	$0.00	$0.00
Total Short-Term Assets	$1.143B	$1.229B	$980.8M
YoY Change	158.66%	95.73%	414.58%
LONG-TERM ASSETS
Property, Plant & Equipment	$582.4M	$638.2M	$595.3M
YoY Change	11.51%	-87.74%	-88.26%
Goodwill	$0.00	$235.4M	$235.4M
YoY Change	-100.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$144.3M	$121.4M	$107.2M
YoY Change	46.27%	-65.47%	12.92%
Total Long-Term Assets	$8.648B	$8.615B	$8.198B
YoY Change	49.67%	48.77%	51.64%
TOTAL ASSETS
Total Short-Term Assets	$1.143B	$1.229B	$980.8M
Total Long-Term Assets	$8.648B	$8.615B	$8.198B
Total Assets	$9.791B	$9.844B	$9.179B
YoY Change	57.42%	53.37%	64.0%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$559.3M	$779.2M	$669.4M
YoY Change	559200.0%	88.3%
Accrued Expenses	$190.7M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00	$0.00	$0.00
YoY Change	-100.0%	-100.0%	-100.0%
Total Short-Term Liabilities	$1.170B	$914.7M	$823.4M
YoY Change	67.33%	86.11%	28.46%
LONG-TERM LIABILITIES
Long-Term Debt	$4.301B	$4.300B	$3.549B
YoY Change	52.89%	52.89%	22.72%
Other Long-Term Liabilities	$17.05M	$15.81M	$14.57M
YoY Change	29.8%	-87.7%	-94.54%
Total Long-Term Liabilities	$4.318B	$4.316B	$3.564B
YoY Change	52.79%	46.75%	12.82%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.170B	$914.7M	$823.4M
Total Long-Term Liabilities	$4.318B	$4.316B	$3.564B
Total Liabilities	$5.928B	$5.639B	$4.756B
YoY Change	61.5%	27.74%	14.34%
SHAREHOLDERS EQUITY
Retained Earnings	-$2.851B	-$2.544B	-$2.360B
YoY Change	-2.93%
Common Stock	$476.0K	$476.0K	$475.0K
YoY Change	19.3%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$8.602M	$7.038M	$6.925M
YoY Change	39.69%
Treasury Stock Shares	1.219M shares	998.0K shares	970.0K shares
Shareholders Equity	$2.369B	$2.658B	$2.836B
YoY Change
Total Liabilities & Shareholders Equity	$9.791B	$9.844B	$9.179B
YoY Change	57.42%	53.37%	64.0%

Cashflow Statement

Concept	2012 Q4	2012 Q3	2012 Q2
OPERATING ACTIVITIES
Net Income	-$294.5M	-$170.4M	$818.1M
YoY Change	-25.33%	-129.63%	289.53%
Depreciation, Depletion And Amortization	$190.0M	$182.6M	$154.6M
YoY Change	87.75%	86.33%	77.5%
Cash From Operating Activities	$199.0M	$166.5M	$186.8M
YoY Change	44.83%	159.75%	5.06%
INVESTING ACTIVITIES
Capital Expenditures	-$524.3M	-$578.2M	-$1.272B
YoY Change	19.48%	26.8%	190.46%
Acquisitions
YoY Change
Other Investing Activities	$9.000M	$1.300M	$151.9M
YoY Change	-96.16%	-99.49%	-27.6%
Cash From Investing Activities	-$515.3M	-$576.8M	-$1.121B
YoY Change	152.47%	187.54%	391.02%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-47.50M	663.0M	1.227B
YoY Change	-6.68%	44.98%	2543.97%
NET CHANGE
Cash From Operating Activities	199.0M	166.5M	186.8M
Cash From Investing Activities	-515.3M	-576.8M	-1.121B
Cash From Financing Activities	-47.50M	663.0M	1.227B
Net Change In Cash	-363.8M	252.7M	293.1M
YoY Change	209.35%	-21.23%	-7427.5%
FREE CASH FLOW
Cash From Operating Activities	$199.0M	$166.5M	$186.8M
Capital Expenditures	-$524.3M	-$578.2M	-$1.272B
Free Cash Flow	$723.3M	$744.7M	$1.459B
YoY Change	25.53%	43.18%	136.93%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	461067000	USD
CY2013Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	341008000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	445506000	USD
CY2013	us-gaap	Accretion Of Discount AccretionOfDiscount	711385000	USD
CY2012	us-gaap	Accretion Of Discount AccretionOfDiscount	678200000	USD
CY2013Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	812488000	USD
CY2012Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	766544000	USD
CY2013Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	360279000	USD
CY2012Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	451141000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	349218000	USD
CY2011	us-gaap	Accretion Of Discount AccretionOfDiscount	455501000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	286209000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	284271000	USD
CY2013Q4	us-gaap	Acquisition Costs Cumulative AcquisitionCostsCumulative	515849000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	5233019000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	5298301000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	88397000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	47228000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	47778000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	231000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	53000	USD
CY2011	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	7574000	USD
CY2012	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	34654000	USD
CY2012Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	379906000	USD
CY2013Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	337054000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-4000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-16000	USD
CY2011	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	108000	USD
CY2012	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	14388000	USD
CY2012	us-gaap	Advertising Expense AdvertisingExpense	11800000	USD
CY2013	us-gaap	Advertising Expense AdvertisingExpense	5100000	USD
CY2011	us-gaap	Advertising Expense AdvertisingExpense	4800000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5635000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	11061000	USD
CY2012	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3906000	USD
CY2010Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1503000	USD
CY2012	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	6000	USD
CY2013	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	71000	USD
CY2013	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1036000	USD
CY2011	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	2383000	USD
CY2012	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	2592000	USD
CY2011	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	11372000	USD
CY2013	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	10091000	USD
CY2011	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
CY2013	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	500000	shares
CY2013	us-gaap	Asset Impairment Charges AssetImpairmentCharges	26280000	USD
CY2012	us-gaap	Asset Impairment Charges AssetImpairmentCharges	316004000	USD
CY2011	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2825000	USD
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	119877000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	128116000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	498410000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	424117000	USD
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	28996000	USD
CY2013	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	36777000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	9368000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	118504000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	87063000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	32906000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	5716000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	5078000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	7479000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	14419000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	113071000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	72200000	USD
CY2013	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-3077000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	201818000	USD
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	490290000	shares
CY2013Q4	us-gaap	Billings In Excess Of Cost Current BillingsInExcessOfCostCurrent	0	USD
CY2013Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	233405000	USD
CY2012Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	205349000	USD
CY2013	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
CY2012	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	122696000	USD
CY2011Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	95210000	USD
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	490359000	shares
CY2012Q4	us-gaap	Assets Assets	9790731000	USD
CY2013Q4	us-gaap	Assets Assets	7684795000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	1142885000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	1241823000	USD
CY2012Q4	us-gaap	Billings In Excess Of Cost Current BillingsInExcessOfCostCurrent	15546000	USD
CY2011	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
CY2012Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	5231182000	USD
CY2013Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	5762969000	USD
CY2011Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	4791534000	USD
CY2012Q4	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	865863000	USD
CY2013Q4	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	531606000	USD
CY2011Q4	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	689393000	USD
CY2012Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	12262921000	USD
CY2013Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	10972816000	USD
CY2011Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	8969296000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	814663000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	309766000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	207681000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5863000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	504897000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	102085000	USD
CY2012	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	1761556000	USD
CY2013	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	21130000	USD
CY2011	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	320361000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	483000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	476000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	800000000	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	800000000	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	491609000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	491578000	shares
CY2012	us-gaap	Construction Revenue ConstructionRevenue	796323000	USD
CY2013	us-gaap	Construction Revenue ConstructionRevenue	23349000	USD
CY2011	us-gaap	Construction Revenue ConstructionRevenue	0	USD
CY2013	us-gaap	Contract Revenue Cost ContractRevenueCost	23349000	USD
CY2012	us-gaap	Contract Revenue Cost ContractRevenueCost	796323000	USD
CY2011	us-gaap	Contract Revenue Cost ContractRevenueCost	0	USD
CY2013	us-gaap	Convertible Preferred Stock Terms Of Conversion ConvertiblePreferredStockTermsOfConversion	Each outstanding share of convertible perpetual preferred stock is convertible at the holder’s option at any time into shares of the Company’s common stock at the specified conversion rate, subject to customary adjustments in certain circumstances. Each holder is entitled to an annual dividend payable semi-annually in cash, common stock or a combination thereof, at the Company’s election. After a specified conversion date, the Company may cause all outstanding shares of the convertible perpetual preferred stock to convert automatically into common stock at the then-prevailing conversion rate if certain conditions are met. The convertible perpetual preferred stock is not redeemable by the Company at any time.
CY2011	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	65654000	USD
CY2013	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	57118000	USD
CY2012	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	68227000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	2405769000	USD
CY2013	us-gaap	Costs And Expenses CostsAndExpenses	2152389000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	986200000	USD
CY2013Q4	us-gaap	Costs In Excess Of Billings On Uncompleted Contracts Or Programs Expected To Be Collected Within One Year CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear	4079000	USD
CY2012Q4	us-gaap	Costs In Excess Of Billings On Uncompleted Contracts Or Programs Expected To Be Collected Within One Year CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear	11229000	USD
CY2011	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	58190000	USD
CY2012	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	3964170000	USD
CY2011	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	1774303000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-2000	USD
CY2012Q4	us-gaap	Customer Advances Current CustomerAdvancesCurrent	68742000	USD
CY2013	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	100242000	USD
CY2012	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	377185000	USD
CY2012	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	1704991000	USD
CY2011	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	1296903000	USD
CY2013	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	1131269000	USD
CY2013	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	82775000	USD
CY2011	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	98849000	USD
CY2012	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	120438000	USD
CY2013	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	1335416000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-72000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3842000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	618000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5684000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-74000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1169000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1842000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	551000	USD
CY2013Q4	us-gaap	Customer Advances Current CustomerAdvancesCurrent	184203000	USD
CY2013	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	3172187000	USD
CY2012	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	410415000	USD
CY2011	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	558257000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-97410000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-6447000	USD
CY2013Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	61923000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	83643000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-100288000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6986000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-539000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2878000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2013Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	3692000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	0	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1235038000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1114840000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	172229000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	557266000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	753451000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	0	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	15012000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	20358000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	17713000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	147626000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	973675000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	859328000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	2600000000	USD
CY2008Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	298400000	USD
CY2010Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	629800000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2801000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2193000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	13100000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	24895000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	13935000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	481587000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	557574000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	0	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	24819000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	180140000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	198424000	USD
CY2013Q4	us-gaap	Deposit Liability Current DepositLiabilityCurrent	0	USD
CY2012Q4	us-gaap	Deposit Liability Current DepositLiabilityCurrent	255000000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	628834000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	629868000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	370876000	USD
CY2012Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	35764000	USD
CY2013Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	23369000	USD
CY2012Q4	us-gaap	Derivative Assets DerivativeAssets	94639000	USD
CY2013Q4	us-gaap	Derivative Assets DerivativeAssets	26905000	USD
CY2012Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	71022000	USD
CY2013Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	12779000	USD
CY2013Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	14126000	USD
CY2012Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	23617000	USD
CY2012Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2013Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2012Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	74647000	USD
CY2013Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	54831000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts1	-4021051000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts1	-2546680000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts1	-2977993000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	130403000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	50274000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	94639000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	26905000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	110411000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	78200000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	0	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	0	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	-27926000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	19992000	USD
CY2011	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	44075000	USD
CY2012	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	241419000	USD
CY2013	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-47123000	USD
CY2012Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	74647000	USD
CY2013Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	54831000	USD
CY2012Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	14860000	USD
CY2013Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	34267000	USD
CY2012Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	59787000	USD
CY2013Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	20564000	USD
CY2012Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	35764000	USD
CY2013Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	23369000	USD
CY2013	us-gaap	Direct Operating Costs DirectOperatingCosts	682830000	USD
CY2011	us-gaap	Direct Operating Costs DirectOperatingCosts	498563000	USD
CY2012	us-gaap	Direct Operating Costs DirectOperatingCosts	1431672000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	4245939000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	7000151000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	6864555000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	29482544000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	26494942000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	19937484000	USD
CY2012Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	16572000	USD
CY2012	us-gaap	Dividends Preferred Stock DividendsPreferredStock	55525000	USD
CY2011	us-gaap	Dividends Preferred Stock DividendsPreferredStock	55583000	USD
CY2013	us-gaap	Dividends Preferred Stock DividendsPreferredStock	55525000	USD
CY2012Q4	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	0	USD
CY2013Q4	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	0	USD
CY2012Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	978000	USD
CY2013Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	0	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense1	-4043953000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense1	-3721509000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense1	-2283541000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	12080892000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	12840519000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	8263550000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts1	-6843713000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts1	-7392104000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts1	-8899465000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	5216337000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	4017611000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	5840368000	USD
CY2013Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	16572000	USD
CY2012Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	0	USD
CY2013Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	0	USD
CY2012Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	982000	USD
CY2013Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	2533000	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.13
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.27
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.58
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.63
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.39
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.74
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.07
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.18
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.01
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.03
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.27
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.13
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.63
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.07
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.01
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.58
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.39
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.46
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.03
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	29811000	USD
CY2013Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	59785000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-16000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	53000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-4000	USD
CY2013Q4	us-gaap	Exploration Costs Cumulative ExplorationCostsCumulative	61327000	USD
CY2012	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	2092423000	USD
CY2013	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	1406102000	USD
CY2011	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	1812167000	USD
CY2011Q4	us-gaap	Fair Value Level3 Transfers Out Description FairValueLevel3TransfersOutDescription	Fair values related to the Company’s oil and natural gas fixed price swaps, natural gas collars and interest rate swap were transferred from Level 3 to Level 2 in the fourth quarter of 2011 due to enhancements to the Company’s internal valuation process, including the use of observable inputs to assess the fair value.
CY2012	us-gaap	Fair Value Level3 Transfers Out Description FairValueLevel3TransfersOutDescription	During the years ended December 31, 2013 and 2012, the Company did not have any transfers between Level 1, Level 2 or Level 3 fair value measurements.
CY2013	us-gaap	Fair Value Level3 Transfers Out Description FairValueLevel3TransfersOutDescription	During the years ended December 31, 2013 and 2012, the Company did not have any transfers between Level 1, Level 2 or Level 3 fair value measurements.
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	117268000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	5460000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	133000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-40907000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	-5697000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	60127000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	3503000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	645000	USD
CY2012Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	512000	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	4252000	USD
CY2013Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	222554000	USD
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	2044000	USD
CY2012	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-3089000	USD
CY2013	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-399086000	USD
CY2012	us-gaap	Gain Or Loss On Sale Of Previously Unissued Stock By Subsidiary GainOrLossOnSaleOfPreviouslyUnissuedStockBySubsidiary	0	USD
CY2013	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-82005000	USD
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-3075000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-38232000	USD
CY2011	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	66007000	USD
CY2012	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	39669000	USD
CY2013	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	53644000	USD
CY2011	us-gaap	Gas Gathering Transportation Marketing And Processing Revenue GasGatheringTransportationMarketingAndProcessingRevenue	66690000	USD
CY2012	us-gaap	Gas Gathering Transportation Marketing And Processing Revenue GasGatheringTransportationMarketingAndProcessingRevenue	40486000	USD
CY2013	us-gaap	Gas Gathering Transportation Marketing And Processing Revenue GasGatheringTransportationMarketingAndProcessingRevenue	58304000	USD
CY2012Q4	us-gaap	Gas Imbalance Asset Liability GasImbalanceAssetLiability	-3600000	USD
CY2013Q4	us-gaap	Gas Imbalance Asset Liability GasImbalanceAssetLiability	-2600000	USD
CY2013	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	330425000	USD
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	148643000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	241682000	USD
CY2012	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	235400000	USD
CY2012Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	235400000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	156571000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	146209000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-508795000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5684000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-5817000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-100362000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	4610000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1324000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2083000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	51522000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	121889000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	116999000	USD
CY2012	us-gaap	Increase Decrease In Asset Retirement Obligations IncreaseDecreaseInAssetRetirementObligations	-84361000	USD
CY2011	us-gaap	Increase Decrease In Asset Retirement Obligations IncreaseDecreaseInAssetRetirementObligations	-16531000	USD
CY2013	us-gaap	Increase Decrease In Asset Retirement Obligations IncreaseDecreaseInAssetRetirementObligations	-133623000	USD
CY2013	us-gaap	Increase Decrease In Billing In Excess Of Cost Of Earnings IncreaseDecreaseInBillingInExcessOfCostOfEarnings	-8396000	USD
CY2012	us-gaap	Increase Decrease In Billing In Excess Of Cost Of Earnings IncreaseDecreaseInBillingInExcessOfCostOfEarnings	-89003000	USD
CY2011	us-gaap	Increase Decrease In Billing In Excess Of Cost Of Earnings IncreaseDecreaseInBillingInExcessOfCostOfEarnings	-11013000	USD
CY2013	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-207729000	USD
CY2012	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-45397000	USD
CY2011	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	87080000	USD
CY2012	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	11433000	USD
CY2011	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-833841000	USD
CY2013	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	477328000	USD
CY2012	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	1586000	USD
CY2013	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-810000	USD
CY2011	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-1432000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-34447000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-5777000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	35773000	USD
CY2013	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	7934000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	5952000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	4359000	USD
CY2013	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-90048000	USD
CY2012	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	141534000	USD
CY2011	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	61645000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-255000000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2013	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	255000000	USD
CY2013	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	1628000	USD
CY2011	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	44934000	USD
CY2012	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	1708301000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	2420000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	7794000	shares
CY2012Q4	us-gaap	Insurance Settlements Receivable Current InsuranceSettlementsReceivableCurrent	4590000	USD
CY2013Q4	us-gaap	Insurance Settlements Receivable Current InsuranceSettlementsReceivableCurrent	2500000	USD
CY2013	us-gaap	Interest And Debt Expense InterestAndDebtExpense	270234000	USD
CY2012	us-gaap	Interest And Debt Expense InterestAndDebtExpense	303349000	USD
CY2011	us-gaap	Interest And Debt Expense InterestAndDebtExpense	237332000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-237332000	USD
CY2012	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-303349000	USD
CY2013	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-270234000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	274850000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	224127000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	257152000	USD
CY2012Q4	us-gaap	Interest Payable Current InterestPayableCurrent	92125000	USD
CY2013Q4	us-gaap	Interest Payable Current InterestPayableCurrent	80740000	USD
CY2012Q4	us-gaap	Land Land	17927000	USD
CY2013Q4	us-gaap	Land Land	18423000	USD
CY2011	us-gaap	Lease Operating Expense LeaseOperatingExpense	322877000	USD
CY2013	us-gaap	Lease Operating Expense LeaseOperatingExpense	516427000	USD
CY2012	us-gaap	Lease Operating Expense LeaseOperatingExpense	477154000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	5928276000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	4509168000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7684795000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9790731000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1170454000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	933818000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3194907000	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	4301083000	USD
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	3194907000	USD
CY2013Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	4301083000	USD
CY2012Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	643370000	USD
CY2013Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	600603000	USD
CY2013Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	13708000	USD
CY2012Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	10348000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	1493602000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	1349817000	USD
CY2013	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	206470000	USD
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	60200000	USD
CY2012	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	181727000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	645193000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1434089000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1874870000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-902329000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2555945000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	1070356000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	783160000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	458954000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	868630000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	-553889000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	108065000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	141571000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	105000000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	54323000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	39410000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	52482000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	86046000	USD
CY2013Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5198000	USD
CY2012Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	804191000	USD
CY2012Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-301785000	USD
CY2013Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-87074000	USD
CY2013Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-34317000	USD
CY2012Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-232059000	USD
CY2012Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-184301000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-609414000	USD
CY2013Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-493221000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	52482000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	86046000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-609414000	USD
CY2011	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	1264736000	USD
CY2013	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	271566000	USD
CY2012	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-2555391000	USD
CY2012	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	139360000	USD
CY2013	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	28985000	USD
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-272442000	USD
CY2013	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-339794000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-178987000	USD
CY2012Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	11433000	USD
CY2013Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	11640000	USD
CY2013Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	168596000	USD
CY2012Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	202405000	USD
CY2013Q4	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	11504422000	USD
CY2012Q4	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	13128784000	USD
CY2011Q4	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	9658689000	USD
CY2013Q4	us-gaap	Oil And Gas Property Full Cost Method Net OilAndGasPropertyFullCostMethodNet	5741453000	USD
CY2012Q4	us-gaap	Oil And Gas Property Full Cost Method Net OilAndGasPropertyFullCostMethodNet	7897602000	USD
CY2011Q4	us-gaap	Oil And Gas Property Full Cost Method Net OilAndGasPropertyFullCostMethodNet	4867155000	USD
CY2013	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	1820278000	USD
CY2011	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	1226794000	USD
CY2012	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	1759282000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	429013000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	-169001000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	325196000	USD
CY2013Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-359526000	USD
CY2013Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	86458000	USD
CY2013Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	97979000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-75871000	USD
CY2013Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	6088000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-151656000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-209690000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	762413000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	3239000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	215000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1756000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	10838000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	2640000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	2988000	USD
CY2013	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	3600000	USD
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	2600000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1500000	USD
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	19043000	USD
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	21831000	USD
CY2012Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	30272000	USD
CY2013Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	25910000	USD
CY2012Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	10881000	USD
CY2013Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	5945000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	144252000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	121171000	USD
CY2012	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	60805000	USD
CY2013	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	62136000	USD
CY2011	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	53630000	USD
CY2013	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	207920000	USD
CY2011	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	148643000	USD
CY2012	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	241682000	USD
CY2012Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	15546000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	17046000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	22825000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	12445000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3122000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	4741000	USD
CY2011	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	5834000	USD
CY2012	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	1387000	USD
CY2013	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	3929000	USD
CY2012	us-gaap	Other Operating Income OtherOperatingIncome	18241000	USD
CY2011	us-gaap	Other Operating Income OtherOperatingIncome	18431000	USD
CY2013	us-gaap	Other Operating Income OtherOperatingIncome	14871000	USD
CY2012Q4	us-gaap	Other Receivables Gross Current OtherReceivablesGrossCurrent	6532000	USD
CY2013Q4	us-gaap	Other Receivables Gross Current OtherReceivablesGrossCurrent	5122000	USD
CY2013	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	-6660000	USD
CY2012	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	34518000	USD
CY2011	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	-6538000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	17028000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	34628000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	14723000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	32976000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	13796000	USD
CY2012	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	844000	USD
CY2013	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	61997000	USD
CY2011	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	30338000	USD
CY2011	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	20326000	USD
CY2012	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	48538000	USD
CY2013	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	91000	USD
CY2012	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	55525000	USD
CY2013	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	55525000	USD
CY2011	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	56742000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	840740000	USD
CY2013	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	17028000	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	34628000	USD
CY2013	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1496731000	USD
CY2011	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1727106000	USD
CY2012	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2146372000	USD
CY2011	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	60200000	USD
CY2013	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	206470000	USD
CY2012	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	181727000	USD
CY2013	us-gaap	Postemployment Benefits Period Expense PostemploymentBenefitsPeriodExpense	122505000	USD
CY2012	us-gaap	Postemployment Benefits Period Expense PostemploymentBenefitsPeriodExpense	0	USD
CY2011	us-gaap	Postemployment Benefits Period Expense PostemploymentBenefitsPeriodExpense	0	USD
CY2013	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	55525000	USD
CY2011	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	55583000	USD
CY2012	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	55525000	USD
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	7650000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	7650000	shares
CY2012Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	31319000	USD
CY2013Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	39253000	USD
CY2011	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	-575546000	USD
CY2013	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	-474275000	USD
CY2012	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	-766943000	USD
CY2013	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Reclassifications.</font><font style="font-family:inherit;font-size:10pt;"> Certain reclassifications have been made to the prior period financial statements to conform to the current period presentation. These reclassifications have no effect on the Company’s previously reported results of operations.</font></div></div>
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1850344000	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2033000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2013	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	1579000	USD
CY2011	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2012	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2011	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	917528000	USD
CY2013	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	0	USD
CY2012	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	587086000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-98639000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	5403000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-58100000	USD
CY2012	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	431167000	USD
CY2011	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	859405000	USD
CY2013	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	2584115000	USD
CY2013Q4	us-gaap	Production Costs Cumulative ProductionCostsCumulative	45600000	USD
CY2012Q4	us-gaap	Production Costs Cumulative ProductionCostsCumulative	72400000	USD
CY2011	us-gaap	Production Tax Expense ProductionTaxExpense	46069000	USD
CY2012	us-gaap	Production Tax Expense ProductionTaxExpense	47210000	USD
CY2013	us-gaap	Production Tax Expense ProductionTaxExpense	32292000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	-514479000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	162388000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	246571000	USD
CY2013Q4	us-gaap	Profit Loss ProfitLoss	49097000	USD
CY2013Q1	us-gaap	Profit Loss ProfitLoss	-531259000	USD
CY2012Q4	us-gaap	Profit Loss ProfitLoss	-294529000	USD
CY2013Q2	us-gaap	Profit Loss ProfitLoss	24685000	USD
CY2013Q3	us-gaap	Profit Loss ProfitLoss	-57002000	USD
CY2012Q2	us-gaap	Profit Loss ProfitLoss	917076000	USD
CY2012Q1	us-gaap	Profit Loss ProfitLoss	-216224000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	-159752000	USD
CY2013	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	1423883000	USD
CY2011	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	1816494000	USD
CY2012	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	2173982000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	866646000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	852431000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	582375000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	566222000	USD
CY2013	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	5497000	USD
CY2011	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2511000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1115500000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2130293000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	366029000	USD
CY2013Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	0	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	255000000	USD
CY2013Q4	us-gaap	Restricted Cash And Investments Noncurrent RestrictedCashAndInvestmentsNoncurrent	27955000	USD
CY2012	us-gaap	Revenue Oil And Gas Services RevenueOilAndGasServices	116633000	USD
CY2011	us-gaap	Revenue Oil And Gas Services RevenueOilAndGasServices	103298000	USD
CY2013	us-gaap	Revenue Oil And Gas Services RevenueOilAndGasServices	66586000	USD
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1735000	USD
CY2012Q4	us-gaap	Restricted Cash And Investments Noncurrent RestrictedCashAndInvestmentsNoncurrent	27947000	USD
CY2012	us-gaap	Results Of Operations Accretion Of Asset Retirement Obligations ResultsOfOperationsAccretionOfAssetRetirementObligations	28996000	USD
CY2013	us-gaap	Results Of Operations Accretion Of Asset Retirement Obligations ResultsOfOperationsAccretionOfAssetRetirementObligations	36777000	USD
CY2011	us-gaap	Results Of Operations Accretion Of Asset Retirement Obligations ResultsOfOperationsAccretionOfAssetRetirementObligations	9368000	USD
CY2013	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	1153228000	USD
CY2012	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	1121389000	USD
CY2011	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	695560000	USD
CY2012	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	637893000	USD
CY2011	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	531234000	USD
CY2013	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	667050000	USD
CY2012	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	-437595000	USD
CY2011	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	-20134000	USD
CY2013	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	-7471000	USD
CY2013	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	674521000	USD
CY2011	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	551368000	USD
CY2012	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	1075488000	USD
CY2012	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	524364000	USD
CY2011	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	368946000	USD
CY2013	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	548719000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-3460462000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-2851048000	USD
CY2013	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1600000	USD
CY2011	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	21500000	USD
CY2012	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	12800000	USD
CY2013	us-gaap	Revenues Revenues	1983388000	USD
CY2011	us-gaap	Revenues Revenues	1415213000	USD
CY2012	us-gaap	Revenues Revenues	2730965000	USD
CY2013Q3	us-gaap	Revenues Revenues	493603000	USD
CY2013Q2	us-gaap	Revenues Revenues	512987000	USD
CY2013	us-gaap	Revenue Recognition Completed Contract Method RevenueRecognitionCompletedContractMethod	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company accounted for its </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">two</font><font style="font-family:inherit;font-size:10pt;"> construction contracts, discussed in Note </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">11</font><font style="font-family:inherit;font-size:10pt;">, using the completed-contract method, under which contract revenues and costs are recognized when work under the contract is completed or substantially completed and assets have been transferred. In the interim, costs incurred on and billings related to contracts in process are accumulated on the balance sheet. Contract losses are recorded at the time it is determined that a loss will be incurred. The contract loss on the Century Plant construction contract was recorded as a development cost within the Company’s full cost pool. Contract gains, if any, are recorded upon substantial completion of the construction project. </font></div></div>
CY2012Q1	us-gaap	Revenues Revenues	381635000	USD
CY2012Q2	us-gaap	Revenues Revenues	478434000	USD
CY2012Q3	us-gaap	Revenues Revenues	532798000	USD
CY2013Q4	us-gaap	Revenues Revenues	465108000	USD
CY2013Q1	us-gaap	Revenues Revenues	511690000	USD
CY2012Q4	us-gaap	Revenues Revenues	1338098000	USD
CY2011	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-345965000	USD
CY2012	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-530755000	USD
CY2013	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-296418000	USD
CY2011	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	857848000	USD
CY2013	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	1271559000	USD
CY2012	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	1234918000	USD
CY2013	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2011	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1219000	shares
CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1319000	shares
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	8602000	USD
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	8770000	USD
CY2013	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-217148000	USD
CY2012	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	624031000	USD
CY2013	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	-1822757000	USD
CY2011	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	1532822000	USD
CY2013Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	4017611000	USD
CY2011Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	5216337000	USD
CY2010Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	3683515000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	38684000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	42795000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	85270000	USD
CY2012	us-gaap	Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1758000	USD
CY2013Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Estimated Range Of Change Upper Bound SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound	800000	USD
CY2011	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-111231000	USD
CY2012	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	143607000	USD
CY2012Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	5840368000	USD
CY2012	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	542138000	USD
CY2011	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2013	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2012	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2013	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2011	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	2368853000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	1825810000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3862455000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3175627000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1547483000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2548950000	USD
CY2012	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1382000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1330000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	210000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	428000	USD
CY2011	us-gaap	Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense	0	USD
CY2011	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	10834000	USD
CY2013	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	30126000	USD
CY2012	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	11312000	USD
CY2013	us-gaap	Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense	0	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	200000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	100000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-100000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	30000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	100000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	262000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	900000	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates.</font><font style="font-family:inherit;font-size:10pt;"> The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The more significant areas requiring the use of assumptions, judgments and estimates include: oil, natural gas and NGL reserves; cash flow estimates used in impairment tests of long-lived assets; depreciation, depletion and amortization; asset retirement obligations; assignments of fair value and allocations of purchase price in connection with business combinations; determinations of significant alterations to the full cost pool and related estimates of fair value for allocations of divested oil and natural gas properties that result in substantial economic differences between the properties divested and the properties remaining; income taxes; valuation of derivative instruments; contingencies; and accrued revenue and related receivables. Although management believes these estimates are reasonable, actual results could differ significantly.</font></div></div>
CY2013	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-3842000	USD
CY2012	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	100288000	USD
CY2011	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	6986000	USD
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	406645000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	481148000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	456015000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	481148000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	453595000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	398851000	shares
CY2012Q4	sd	Additional Paid In Capital Stockholder Receivable AdditionalPaidInCapitalStockholderReceivable	5000000	USD
CY2013Q4	sd	Additional Paid In Capital Stockholder Receivable AdditionalPaidInCapitalStockholderReceivable	3750000	USD
CY2013	sd	Adjustments To Additional Paid In Capital Shareholder Receivable Payments AdjustmentsToAdditionalPaidInCapitalShareholderReceivablePayments	1250000	USD
CY2012Q4	sd	Preferred Stock Shares Designated PreferredStockSharesDesignated	7700000	shares
CY2012Q4	sd	Deferred Tax Liabilities Equity Investments DeferredTaxLiabilitiesEquityInvestments	334331000	USD
CY2013Q4	sd	Deferred Tax Liabilities Equity Investments DeferredTaxLiabilitiesEquityInvestments	301447000	USD
CY2011	sd	Intercompanyborrowingsadvances Intercompanyborrowingsadvances	0	USD
CY2012Q4	sd	Investments In Subsidiaries InvestmentsInSubsidiaries	0	USD
CY2013Q4	sd	Investments In Subsidiaries InvestmentsInSubsidiaries	0	USD
CY2011	sd	Depreciation Amortization Accretion And Asset Impairment DepreciationAmortizationAccretionAndAssetImpairment	383069000	USD
CY2011	sd	Depreciation Depletion Amortization And Accretion DepreciationDepletionAmortizationAndAccretion	380244000	USD
CY2013	sd	Asset Retirement Obligation Liabilities Assumed In Acquisition AssetRetirementObligationLiabilitiesAssumedInAcquisition	0	USD
CY2011	sd	Asset Retirement Obligation Liabilities Assumed In Acquisition AssetRetirementObligationLiabilitiesAssumedInAcquisition	0	USD
CY2012	sd	Asset Retirement Obligation Liabilities Assumed In Acquisition AssetRetirementObligationLiabilitiesAssumedInAcquisition	371365000	USD
CY2012	sd	Average Depreciation And Depletion Rate AverageDepreciationAndDepletionRate	16.93
CY2011	sd	Average Depreciation And Depletion Rate AverageDepreciationAndDepletionRate	13.57
CY2013	sd	Average Depreciation And Depletion Rate AverageDepreciationAndDepletionRate	16.81
CY2013Q4	sd	Capitalized Costs Of Unproved Properties Excluded From Amortization Including Pipe Inventory Cost Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationIncludingPipeInventoryCostCumulative	577176000	USD
CY2012	sd	Cash Distribution To Owners CashDistributionToOwners	181727000	USD
CY2013	sd	Cash Distribution To Owners CashDistributionToOwners	206470000	USD
CY2011	sd	Cash Distribution To Owners CashDistributionToOwners	60200000	USD
CY2013	sd	Change In Accrued Capital Expenditures ChangeInAccruedCapitalExpenditures	72848000	USD
CY2011	sd	Change In Accrued Capital Expenditures ChangeInAccruedCapitalExpenditures	-89388000	USD
CY2012	sd	Change In Accrued Capital Expenditures ChangeInAccruedCapitalExpenditures	-27610000	USD
CY2013	sd	Completion Of Evaluation Activities On Unproved Properties CompletionOfEvaluationActivitiesOnUnprovedProperties	P10Y
CY2012Q4	sd	Deferred Tax Assets Alternative Minimum Tax And Other Carryforwards DeferredTaxAssetsAlternativeMinimumTaxAndOtherCarryforwards	42242000	USD
CY2013Q4	sd	Deferred Tax Assets Alternative Minimum Tax And Other Carryforwards DeferredTaxAssetsAlternativeMinimumTaxAndOtherCarryforwards	46624000	USD
CY2013Q4	sd	Deferred Tax Assets Litigation Settlement DeferredTaxAssetsLitigationSettlement	355000	USD
CY2012Q4	sd	Deferred Tax Assets Litigation Settlement DeferredTaxAssetsLitigationSettlement	7200000	USD
CY2013	sd	Depreciation Depletion Amortization And Accretion DepreciationDepletionAmortizationAndAccretion	666645000	USD
CY2012	sd	Depreciation Depletion Amortization And Accretion DepreciationDepletionAmortizationAndAccretion	657830000	USD
CY2013Q4	sd	Drilling Carry Received Or Billed Cumulative DrillingCarryReceivedOrBilledCumulative	794400000	USD
CY2013Q4	sd	Preferred Stock Shares Designated PreferredStockSharesDesignated	7700000	shares
CY2011	sd	Issuance Of Royalty Trust Units Value IssuanceOfRoyaltyTrustUnitsValue	917528000	USD
CY2012	sd	Issuance Of Royalty Trust Units Value IssuanceOfRoyaltyTrustUnitsValue	587086000	USD
CY2011	sd	Loss On Construction Contracts LossOnConstructionContracts	25000000	USD
CY2012	sd	Loss On Construction Contracts LossOnConstructionContracts	50000000	USD
CY2013	sd	Loss On Construction Contracts LossOnConstructionContracts	0	USD
CY2012	sd	Intercompanyborrowingsadvances Intercompanyborrowingsadvances	0	USD
CY2013	sd	Intercompanyborrowingsadvances Intercompanyborrowingsadvances	0	USD
CY2013	sd	Net Income Loss From Subsidiaries NetIncomeLossFromSubsidiaries	0	USD
CY2011	sd	Net Income Loss From Subsidiaries NetIncomeLossFromSubsidiaries	0	USD
CY2012	sd	Net Income Loss From Subsidiaries NetIncomeLossFromSubsidiaries	0	USD
CY2013	sd	Noncontrolling Interest Increase Other NoncontrollingInterestIncreaseOther	1579000	USD
CY2013	sd	Number Of Contracts NumberOfContracts	2	contracts
CY2013Q4	sd	Oil And Gas Property Cumulative Impairment Based On Ceiling Test Calculation OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation	3500000000	USD
CY2012Q4	sd	Oil And Gas Property Cumulative Impairment Based On Ceiling Test Calculation OilAndGasPropertyCumulativeImpairmentBasedOnCeilingTestCalculation	3500000000	USD
CY2012Q4	sd	Oil And Gas Receivable Current OilAndGasReceivableCurrent	215450000	USD
CY2013Q4	sd	Oil And Gas Receivable Current OilAndGasReceivableCurrent	166157000	USD
CY2013Q4	sd	Oil And Gas Services Receivable Current OilAndGasServicesReceivableCurrent	17904000	USD
CY2012Q4	sd	Oil And Gas Services Receivable Current OilAndGasServicesReceivableCurrent	21186000	USD
CY2011	sd	Payments For Proceeds From Derivative Instruments Operating Activities PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities	53536000	USD
CY2012	sd	Payments For Proceeds From Derivative Instruments Operating Activities PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities	-125932000	USD
CY2013	sd	Payments For Proceeds From Derivative Instruments Operating Activities PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities	5879000	USD
CY2013Q4	sd	Percentage Proved Reserves Estimate Company PercentageProvedReservesEstimateCompany	0.139
CY2013Q4	sd	Pipe Inventory Costs Cumulative PipeInventoryCostsCumulative	45600000	USD
CY2012	sd	Preferred Dividends Accrued Not Yet Paid PreferredDividendsAccruedNotYetPaid	16572000	USD
CY2011	sd	Preferred Dividends Accrued Not Yet Paid PreferredDividendsAccruedNotYetPaid	16572000	USD
CY2013	sd	Preferred Dividends Accrued Not Yet Paid PreferredDividendsAccruedNotYetPaid	16572000	USD
CY2011	sd	Preferred Dividends Paid PreferredDividendsPaid	39011000	USD
CY2012	sd	Preferred Dividends Paid PreferredDividendsPaid	38953000	USD
CY2013	sd	Preferred Dividends Paid PreferredDividendsPaid	38953000	USD
CY2012	sd	Proceeds From Issuance Of Convertible Preferred Stock Net ProceedsFromIssuanceOfConvertiblePreferredStockNet	0	USD
CY2013	sd	Proceeds From Issuance Of Convertible Preferred Stock Net ProceedsFromIssuanceOfConvertiblePreferredStockNet	0	USD
CY2011	sd	Proceeds From Issuance Of Convertible Preferred Stock Net ProceedsFromIssuanceOfConvertiblePreferredStockNet	-231000	USD
CY2011	sd	Proceeds From Sale Of Royalty Trust Units ProceedsFromSaleOfRoyaltyTrustUnits	0	USD
CY2012	sd	Proceeds From Sale Of Royalty Trust Units ProceedsFromSaleOfRoyaltyTrustUnits	139360000	USD
CY2013	sd	Proceeds From Sale Of Royalty Trust Units ProceedsFromSaleOfRoyaltyTrustUnits	28985000	USD
CY2013	sd	Proceeds From Shareholder Receivable ProceedsFromShareholderReceivable	1250000	USD
CY2011	sd	Proceeds From Shareholder Receivable ProceedsFromShareholderReceivable	0	USD
CY2012	sd	Proceeds From Shareholder Receivable ProceedsFromShareholderReceivable	0	USD
CY2013Q4	sd	Production Payable Current ProductionPayableCurrent	127647000	USD
CY2012Q4	sd	Production Payable Current ProductionPayableCurrent	97245000	USD
CY2013Q4	sd	Remaining Drilling Carry RemainingDrillingCarry	205600000	USD
CY2013	sd	Results Of Operations Depreciation And Depletion ResultsOfOperationsDepreciationAndDepletion	567732000	USD
CY2012	sd	Results Of Operations Depreciation And Depletion ResultsOfOperationsDepreciationAndDepletion	568029000	USD
CY2011	sd	Results Of Operations Depreciation And Depletion ResultsOfOperationsDepreciationAndDepletion	317246000	USD
CY2013Q4	sd	Shareholder Receivable Number Of Annual Installments ShareholderReceivableNumberOfAnnualInstallments	4
CY2012	sd	Stockholder Settlement Gross StockholderSettlementGross	5000000	USD
CY2013Q4	sd	Total Drilling Carry TotalDrillingCarry	1000000000	USD
CY2012Q4	sd	Total Property And Equipment Net TotalPropertyAndEquipmentNet	8479977000	USD
CY2013Q4	sd	Total Property And Equipment Net TotalPropertyAndEquipmentNet	6307675000	USD
CY2013	sd	Treasury Stock Nonqualified Plan Value TreasuryStockNonqualifiedPlanValue	-435000	USD
CY2012	sd	Treasury Stock Nonqualified Plan Value TreasuryStockNonqualifiedPlanValue	-298000	USD
CY2011	sd	Treasury Stock Nonqualified Plan Value TreasuryStockNonqualifiedPlanValue	568000	USD
CY2013	sd	Unrecognized Excess Tax Benefits From Stock Based Compensation UnrecognizedExcessTaxBenefitsFromStockBasedCompensation	16300000	USD
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0001349436
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	495085274	shares
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013Q2	dei	Entity Public Float EntityPublicFloat	2300000000	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	SANDRIDGE ENERGY INC
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2013	dei	Trading Symbol TradingSymbol	SD

Files In Submission

Name	View Source	Status
0001349436-14-000063-index-headers.html	Edgar Link	pending
0001349436-14-000063-index.html	Edgar Link	pending
0001349436-14-000063.txt	Edgar Link	pending
0001349436-14-000063-xbrl.zip	Edgar Link	pending
cgconsentsd2013form10_image1.gif	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
lkasignature.jpg	Edgar Link	pending
nsai2ndpagea01.gif	Edgar Link	pending
nsaisandridgeinterest_image2.gif	Edgar Link	pending
nsaisandridgeinterest_image3.gif	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R122.htm	Edgar Link	pending
R123.htm	Edgar Link	pending
R124.htm	Edgar Link	pending
R125.htm	Edgar Link	pending
R126.htm	Edgar Link	pending
R127.htm	Edgar Link	pending
R128.htm	Edgar Link	pending
R129.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R130.htm	Edgar Link	pending
R131.htm	Edgar Link	pending
R132.htm	Edgar Link	pending
R133.htm	Edgar Link	pending
R134.htm	Edgar Link	pending
R135.htm	Edgar Link	pending
R136.htm	Edgar Link	pending
R137.htm	Edgar Link	pending
R138.htm	Edgar Link	pending
R139.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R140.htm	Edgar Link	pending
R141.htm	Edgar Link	pending
R142.htm	Edgar Link	pending
R143.htm	Edgar Link	pending
R144.htm	Edgar Link	pending
R145.htm	Edgar Link	pending
R146.htm	Edgar Link	pending
R147.htm	Edgar Link	pending
R148.htm	Edgar Link	pending
R149.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R150.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
sandridgereportletter_image1.jpg	Edgar Link	pending
sandridgereportletter_image2.jpg	Edgar Link	pending
sd-20131231.xml	Edgar Link	completed
sd-20131231.xsd	Edgar Link	pending
sd-20131231_cal.xml	Edgar Link	unprocessable
sd-20131231_def.xml	Edgar Link	unprocessable
sd-20131231_lab.xml	Edgar Link	unprocessable
sd-20131231_pre.xml	Edgar Link	unprocessable
sd10k123113ex102sandridgee.htm	Edgar Link	pending
sd10k123113ex211subsidiari.htm	Edgar Link	pending
sd10k123113ex231pwcconsent.htm	Edgar Link	pending
sd10k123113ex232cgaconsent.htm	Edgar Link	pending
sd10k123113ex233nsaiconsen.htm	Edgar Link	pending
sd10k123113ex234lkaconsent.htm	Edgar Link	pending
sd10k123113ex311ceocertifi.htm	Edgar Link	pending
sd10k123113ex312cfocertifi.htm	Edgar Link	pending
sd10k123113ex321section906.htm	Edgar Link	pending
sd10k123113ex991cgareport.htm	Edgar Link	pending
sd10k123113ex992nsaireport.htm	Edgar Link	pending
sd10k123113q4.htm	Edgar Link	pending
sd10k1231_chart-54089.jpg	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$SD
SANDRIDGE ENERGY INC Stock $sd

2012 Q4 Form 10-K Financial Statement

#000134943614000063 Filed on February 28, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SD SANDRIDGE ENERGY INC Stock $sd

2012 Q4 Form 10-K Financial Statement

#000134943614000063 Filed on February 28, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SD
SANDRIDGE ENERGY INC Stock $sd