2015 Q4 Form 10-K Financial Statement
#000134943616000213 Filed on March 30, 2016
Income Statement
| Concept | 2015 Q4 | 2015 | 2014 Q4 |
|---|---|---|---|
| Revenue | $143.6M | $768.7M | $346.9M |
| YoY Change | -58.59% | -50.68% | -25.42% |
| Cost Of Revenue | $74.20M | $24.39M | $123.8M |
| YoY Change | -40.06% | -56.56% | -22.38% |
| Gross Profit | $69.50M | $744.3M | $223.1M |
| YoY Change | -68.85% | -50.46% | -27.02% |
| Gross Profit Margin | 48.38% | 96.83% | 64.32% |
| Selling, General & Admin | $29.00M | $137.7M | $27.90M |
| YoY Change | 3.94% | 20.79% | -21.63% |
| % of Gross Profit | 41.73% | 18.5% | 12.51% |
| Research & Development | |||
| YoY Change | |||
| % of Gross Profit | |||
| Depreciation & Amortization | $63.20M | $367.3M | $123.5M |
| YoY Change | -48.83% | -25.64% | -17.23% |
| % of Gross Profit | 90.94% | 49.35% | 55.36% |
| Operating Expenses | $93.20M | $509.5M | $152.6M |
| YoY Change | -38.93% | -17.41% | -21.1% |
| Operating Profit | -$959.4M | -$4.643B | $374.0M |
| YoY Change | -356.54% | -886.6% | 205.89% |
| Interest Expense | -$73.30M | -$237.9M | $268.8M |
| YoY Change | -127.27% | -364.63% | -791.0% |
| % of Operating Profit | 71.87% | ||
| Other Income/Expense, Net | -$19.70M | $321.8M | $300.0K |
| YoY Change | -6666.67% | -233.72% | -97.35% |
| Pretax Income | -$783.9M | -$4.321B | $313.9M |
| YoY Change | -349.73% | -1335.95% | 337.19% |
| Income Tax | $0.00 | $123.0K | -$200.0K |
| % Of Pretax Income | -0.06% | ||
| Net Earnings | -$784.0M | -$3.698B | $314.1M |
| YoY Change | -349.62% | -1559.84% | 327.99% |
| Net Earnings / Revenue | -545.77% | -481.01% | 90.54% |
| Basic Earnings Per Share | -$1.13 | -$7.16 | $0.55 |
| Diluted Earnings Per Share | -$1.13 | -$7.16 | $0.48 |
| COMMON SHARES | |||
| Basic Shares Outstanding | 580.0M shares | 521.9M shares | 484.8M shares |
| Diluted Shares Outstanding | 521.9M shares |
Balance Sheet
| Concept | 2015 Q4 | 2015 | 2014 Q4 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | $435.6M | $435.6M | $181.3M |
| YoY Change | 140.26% | 140.26% | -77.75% |
| Cash & Equivalents | $435.6M | $435.6M | $181.3M |
| Short-Term Investments | |||
| Other Short-Term Assets | $19.93M | $111.1M | $21.19M |
| YoY Change | -5.95% | -65.35% | -18.21% |
| Inventory | |||
| Prepaid Expenses | $6.833M | $7.981M | |
| Receivables | $127.4M | $127.4M | $330.1M |
| Other Receivables | $0.00 | $0.00 | $0.00 |
| Total Short-Term Assets | $674.1M | $674.1M | $831.9M |
| YoY Change | -18.97% | -18.97% | -33.01% |
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | $491.8M | $2.235B | $576.5M |
| YoY Change | -14.69% | -64.04% | 1.81% |
| Goodwill | |||
| YoY Change | |||
| Intangibles | |||
| YoY Change | |||
| Long-Term Investments | $11.10M | ||
| YoY Change | -18.98% | ||
| Other Assets | $13.24M | $13.20M | $165.2M |
| YoY Change | -91.99% | -93.44% | 36.38% |
| Total Long-Term Assets | $2.248B | $2.248B | $6.427B |
| YoY Change | -65.03% | -65.03% | -0.24% |
| TOTAL ASSETS | |||
| Total Short-Term Assets | $674.1M | $674.1M | $831.9M |
| Total Long-Term Assets | $2.248B | $2.248B | $6.427B |
| Total Assets | $2.922B | $2.922B | $7.259B |
| YoY Change | -59.75% | -59.75% | -5.54% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | $428.4M | $288.5M | $514.9M |
| YoY Change | -16.8% | -43.97% | 9.27% |
| Accrued Expenses | $118.3M | $157.4M | |
| YoY Change | -24.84% | -51.52% | |
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $0.00 | $0.00 | $0.00 |
| YoY Change | |||
| Long-Term Debt Due | $0.00 | $0.00 | |
| YoY Change | |||
| Total Short-Term Liabilities | $437.4M | $437.4M | $784.5M |
| YoY Change | -44.24% | -44.24% | -16.0% |
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $3.562B | $3.562B | $3.195B |
| YoY Change | 11.48% | 11.49% | 0.02% |
| Other Long-Term Liabilities | $14.81M | $110.0M | $15.12M |
| YoY Change | -2.0% | 58.27% | -33.77% |
| Total Long-Term Liabilities | $3.577B | $3.672B | $3.211B |
| YoY Change | 11.42% | 12.48% | -0.22% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | $437.4M | $437.4M | $784.5M |
| Total Long-Term Liabilities | $3.577B | $3.672B | $3.211B |
| Total Liabilities | $4.110B | $4.620B | $4.049B |
| YoY Change | 1.49% | -13.18% | -10.2% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | -$6.993B | -$3.257B | |
| YoY Change | 114.68% | -5.87% | |
| Common Stock | $630.0K | $477.0K | |
| YoY Change | 32.08% | -1.24% | |
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | $5.742M | $6.980M | |
| YoY Change | -17.74% | -20.41% | |
| Treasury Stock Shares | 2.113M shares | 1.113M shares | |
| Shareholders Equity | -$1.698B | -$1.698B | $1.938B |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $2.922B | $2.922B | $7.259B |
| YoY Change | -59.75% | -59.75% | -5.54% |
Cashflow Statement
| Concept | 2015 Q4 | 2015 | 2014 Q4 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | -$784.0M | -$3.698B | $314.1M |
| YoY Change | -349.62% | -1559.84% | 327.99% |
| Depreciation, Depletion And Amortization | $63.20M | $367.3M | $123.5M |
| YoY Change | -48.83% | -25.64% | -17.23% |
| Cash From Operating Activities | $12.60M | $373.5M | $225.4M |
| YoY Change | -94.41% | -39.86% | -17.62% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$331.0M | -$1.096B | -$483.3M |
| YoY Change | -31.51% | -30.26% | 44.4% |
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | $21.10M | -$56.50M | $200.0K |
| YoY Change | 10450.0% | -407.35% | -98.8% |
| Cash From Investing Activities | -$309.9M | -$1.040B | -$483.1M |
| YoY Change | -35.85% | 21.28% | 51.97% |
| FINANCING ACTIVITIES | |||
| Cash Dividend Paid | |||
| YoY Change | |||
| Common Stock Issuance & Retirement, Net | $0.00 | ||
| YoY Change | -100.0% | ||
| Debt Paid & Issued, Net | $939.5M | ||
| YoY Change | |||
| Cash From Financing Activities | -57.40M | $920.4M | -151.3M |
| YoY Change | -62.06% | -331.68% | 146.82% |
| NET CHANGE | |||
| Cash From Operating Activities | 12.60M | $373.5M | 225.4M |
| Cash From Investing Activities | -309.9M | -$1.040B | -483.1M |
| Cash From Financing Activities | -57.40M | $920.4M | -151.3M |
| Net Change In Cash | -354.7M | $254.3M | -409.0M |
| YoY Change | -13.28% | -140.15% | 287.31% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | $12.60M | $373.5M | $225.4M |
| Capital Expenditures | -$331.0M | -$1.096B | -$483.3M |
| Free Cash Flow | $343.6M | $1.470B | $708.7M |
| YoY Change | -51.52% | -32.98% | 16.51% |
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231697000 | USD |
| CY2014Q4 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
337160000 | USD |
| CY2015Q4 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
132234000 | USD |
| CY2014Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
330077000 | USD |
| CY2015Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
127387000 | USD |
| CY2013 | us-gaap |
Accretion Of Discount
AccretionOfDiscount
|
711385000 | USD |
| CY2014 | us-gaap |
Accretion Of Discount
AccretionOfDiscount
|
477458000 | USD |
| CY2015 | us-gaap |
Accretion Of Discount
AccretionOfDiscount
|
512483000 | USD |
| CY2014Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
305420000 | USD |
| CY2015Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
123860000 | USD |
| CY2013 | us-gaap |
Acquisition Costs
AcquisitionCosts
|
14011000 | USD |
| CY2014 | us-gaap |
Acquisition Costs
AcquisitionCosts
|
70304000 | USD |
| CY2015 | us-gaap |
Acquisition Costs
AcquisitionCosts
|
197849000 | USD |
| CY2012Q4 | us-gaap |
Acquisition Costs Cumulative
AcquisitionCostsCumulative
|
80639000 | USD |
| CY2015Q4 | us-gaap |
Acquisition Costs Cumulative
AcquisitionCostsCumulative
|
362803000 | USD |
| CY2014Q4 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
5204024000 | USD |
| CY2015Q4 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
5301136000 | USD |
| CY2013 | us-gaap |
Adjustments To Additional Paid In Capital Income Tax Deficiency From Share Based Compensation
AdjustmentsToAdditionalPaidInCapitalIncomeTaxDeficiencyFromShareBasedCompensation
|
4000 | USD |
| CY2013 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
88397000 | USD |
| CY2014 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
23665000 | USD |
| CY2015 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
21123000 | USD |
| CY2014 | us-gaap |
Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation
AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
|
14000 | USD |
| CY2013 | us-gaap |
Advertising Expense
AdvertisingExpense
|
5100000 | USD |
| CY2014 | us-gaap |
Advertising Expense
AdvertisingExpense
|
1300000 | USD |
| CY2015 | us-gaap |
Advertising Expense
AdvertisingExpense
|
700000 | USD |
| CY2013 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
90200000 | USD |
| CY2014 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
22600000 | USD |
| CY2015 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
21700000 | 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 |
| CY2014Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
7083000 | USD |
| CY2015Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
4847000 | USD |
| CY2013 | us-gaap |
Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
|
71000 | USD |
| CY2014 | us-gaap |
Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
|
4796000 | USD |
| CY2015 | us-gaap |
Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
|
3556000 | USD |
| CY2013 | us-gaap |
Amortization Of Debt Discount Premium
AmortizationOfDebtDiscountPremium
|
1036000 | USD |
| CY2014 | us-gaap |
Amortization Of Debt Discount Premium
AmortizationOfDebtDiscountPremium
|
529000 | USD |
| CY2015 | us-gaap |
Amortization Of Debt Discount Premium
AmortizationOfDebtDiscountPremium
|
3130000 | USD |
| CY2013 | us-gaap |
Amortization Of Financing Costs
AmortizationOfFinancingCosts
|
10091000 | USD |
| CY2013 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
26280000 | USD |
| CY2014Q4 | us-gaap |
Buildings And Improvements Gross
BuildingsAndImprovementsGross
|
263191000 | USD |
| CY2015Q4 | us-gaap |
Buildings And Improvements Gross
BuildingsAndImprovementsGross
|
227673000 | USD |
| CY2014 | us-gaap |
Amortization Of Financing Costs
AmortizationOfFinancingCosts
|
9425000 | USD |
| CY2015 | us-gaap |
Amortization Of Financing Costs
AmortizationOfFinancingCosts
|
11884000 | USD |
| CY2013 | us-gaap |
Amount Of Dilutive Securities Stock Options And Restrictive Stock Units
AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits
|
0 | USD |
| CY2014 | us-gaap |
Amount Of Dilutive Securities Stock Options And Restrictive Stock Units
AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits
|
0 | USD |
| CY2015 | us-gaap |
Amount Of Dilutive Securities Stock Options And Restrictive Stock Units
AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits
|
0 | USD |
| CY2014 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
192768000 | USD |
| CY2015Q1 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
1100000000 | USD |
| CY2015Q2 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
1500000000 | USD |
| CY2015Q3 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
1100000000 | USD |
| CY2015Q4 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
886800000 | USD |
| CY2015 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
4534689000 | USD |
| CY2012Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
498410000 | USD |
| CY2013Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
424117000 | USD |
| CY2014Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
54402000 | USD |
| CY2015Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
103578000 | USD |
| CY2013 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
36777000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
9092000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
4477000 | USD |
| CY2013Q4 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
87063000 | USD |
| CY2014Q4 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
0 | USD |
| CY2015Q4 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
8399000 | USD |
| CY2013 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
5078000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
4968000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
1662000 | USD |
| CY2013 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
113071000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
377927000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
1023000 | USD |
| CY2013 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
-3077000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
-5848000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
44060000 | USD |
| CY2013Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
337054000 | USD |
| CY2014Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
54402000 | USD |
| CY2015Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
95179000 | USD |
| CY2014Q4 | us-gaap |
Assets
Assets
|
7259225000 | USD |
| CY2015Q4 | us-gaap |
Assets
Assets
|
2991155000 | USD |
| CY2014Q4 | us-gaap |
Assets Current
AssetsCurrent
|
831918000 | USD |
| CY2015Q4 | us-gaap |
Assets Current
AssetsCurrent
|
674088000 | USD |
| CY2013Q4 | us-gaap |
Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
|
5762969000 | USD |
| CY2014Q4 | us-gaap |
Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
|
6359149000 | USD |
| CY2015Q4 | us-gaap |
Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
|
11149888000 | USD |
| CY2013Q4 | us-gaap |
Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
|
531606000 | USD |
| CY2015Q4 | us-gaap |
Capitalized Costs Proved Properties
CapitalizedCostsProvedProperties
|
12529681000 | USD |
| CY2012Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
309766000 | USD |
| CY2014Q4 | us-gaap |
Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
|
290596000 | USD |
| CY2015Q4 | us-gaap |
Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
|
363149000 | USD |
| CY2013Q4 | us-gaap |
Capitalized Costs Proved Properties
CapitalizedCostsProvedProperties
|
10972816000 | USD |
| CY2014Q4 | us-gaap |
Capitalized Costs Proved Properties
CapitalizedCostsProvedProperties
|
11707147000 | USD |
| CY2013Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
814663000 | USD |
| CY2014Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
181253000 | USD |
| CY2015Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
435588000 | USD |
| CY2013 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
504897000 | USD |
| CY2015Q2 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1800000000.0 | shares |
| CY2015 | us-gaap |
Contract Revenue Cost
ContractRevenueCost
|
0 | USD |
| CY2013 | us-gaap |
Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
|
57118000 | USD |
| CY2014 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-633410000 | USD |
| CY2015 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
254335000 | USD |
| CY2014Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2015Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2014Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.001 | |
| CY2015Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.001 | |
| CY2014Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
800000000 | shares |
| CY2015Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1800000000 | shares |
| CY2014Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
485932000 | shares |
| CY2015Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
635584000 | shares |
| CY2014Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
484819000 | shares |
| CY2015Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
633471000 | shares |
| CY2014Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
477000 | USD |
| CY2015Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
630000 | USD |
| CY2013 | us-gaap |
Construction Revenue
ConstructionRevenue
|
23349000 | USD |
| CY2014 | us-gaap |
Construction Revenue
ConstructionRevenue
|
0 | USD |
| CY2015 | us-gaap |
Construction Revenue
ConstructionRevenue
|
0 | USD |
| CY2013 | us-gaap |
Contract Revenue Cost
ContractRevenueCost
|
23349000 | USD |
| CY2014 | us-gaap |
Contract Revenue Cost
ContractRevenueCost
|
0 | USD |
| CY2014 | us-gaap |
Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
|
56155000 | USD |
| CY2015 | us-gaap |
Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
|
24394000 | USD |
| CY2013 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
2152389000 | USD |
| CY2014 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
968534000 | USD |
| CY2015 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
5411387000 | USD |
| CY2013 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
|
21130000 | USD |
| CY2014 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
|
73370000 | USD |
| CY2015 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
|
35376000 | USD |
| CY2013 | us-gaap |
Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
|
100242000 | USD |
| CY2014 | us-gaap |
Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
|
123649000 | USD |
| CY2015 | us-gaap |
Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
|
210065000 | USD |
| CY2013 | us-gaap |
Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
|
1131269000 | USD |
| CY2014 | us-gaap |
Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
|
1288395000 | USD |
| CY2015 | us-gaap |
Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
|
571562000 | USD |
| CY2013 | us-gaap |
Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
|
82775000 | USD |
| CY2014 | us-gaap |
Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
|
41070000 | USD |
| CY2015 | us-gaap |
Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
|
29297000 | USD |
| CY2013 | us-gaap |
Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities
CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities
|
1335416000 | USD |
| CY2014 | us-gaap |
Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities
CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities
|
1526484000 | USD |
| CY2015 | us-gaap |
Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities
CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities
|
846300000 | USD |
| CY2013 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
3842000 | USD |
| CY2014 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
-1160000 | USD |
| CY2015 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
0 | USD |
| CY2013 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
5684000 | USD |
| CY2014 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
-2293000 | USD |
| CY2015 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
123000 | USD |
| CY2013 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
1842000 | USD |
| CY2014 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
-1133000 | USD |
| CY2015 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
123000 | USD |
| CY2014Q4 | us-gaap |
Customer Advances Current
CustomerAdvancesCurrent
|
33195000 | USD |
| CY2015Q4 | us-gaap |
Customer Advances Current
CustomerAdvancesCurrent
|
2295000 | USD |
| CY2013 | us-gaap |
Debt Conversion Converted Instrument Amount1
DebtConversionConvertedInstrumentAmount1
|
0 | USD |
| CY2014 | us-gaap |
Debt Conversion Converted Instrument Amount1
DebtConversionConvertedInstrumentAmount1
|
0 | USD |
| CY2015 | us-gaap |
Debt Conversion Converted Instrument Amount1
DebtConversionConvertedInstrumentAmount1
|
63299000 | USD |
| CY2015 | us-gaap |
Debt Conversion Converted Instrument Shares Issued1
DebtConversionConvertedInstrumentSharesIssued1
|
92800000 | shares |
| CY2013 | us-gaap |
Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
|
3172187000 | USD |
| CY2014 | us-gaap |
Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
|
1058330000 | USD |
| CY2015 | us-gaap |
Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
|
0 | USD |
| CY2013 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
0 | USD |
| CY2014 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
0 | USD |
| CY2015 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
0 | USD |
| CY2014Q4 | us-gaap |
Deferred Finance Costs Noncurrent Net
DeferredFinanceCostsNoncurrentNet
|
56445000 | USD |
| CY2015Q4 | us-gaap |
Deferred Finance Costs Noncurrent Net
DeferredFinanceCostsNoncurrentNet
|
72259000 | USD |
| CY2013 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
0 | USD |
| CY2014 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
0 | USD |
| CY2015 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
0 | USD |
| CY2013 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
0 | USD |
| CY2014 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
0 | USD |
| CY2015 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
0 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
1400805000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
2162958000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Gross Noncurrent
DeferredTaxAssetsGrossNoncurrent
|
95843000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Gross Noncurrent
DeferredTaxAssetsGrossNoncurrent
|
0 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
0 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
0 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
1265458000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
1190799000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
2934000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
4305000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Property Plant And Equipment
DeferredTaxAssetsPropertyPlantAndEquipment
|
0 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Property Plant And Equipment
DeferredTaxAssetsPropertyPlantAndEquipment
|
807275000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
19867000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
18607000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
|
27674000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
|
40654000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts
|
19086000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts
|
18702000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
|
21946000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
|
38314000 | USD |
| CY2013Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
753500000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
649592000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
1983642000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
751213000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
179316000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities Current
DeferredTaxLiabilitiesCurrent
|
95843000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Current
DeferredTaxLiabilitiesCurrent
|
0 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
113735000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
30989000 | USD |
| CY2014Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
364576000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
0 | USD |
| CY2013 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
629868000 | USD |
| CY2014 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
493931000 | USD |
| CY2015 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
367295000 | USD |
| CY2014Q4 | us-gaap |
Derivative Asset Fair Value Gross Liability
DerivativeAssetFairValueGrossLiability
|
0 | USD |
| CY2015Q4 | us-gaap |
Derivative Asset Fair Value Gross Liability
DerivativeAssetFairValueGrossLiability
|
1175000 | USD |
| CY2014Q4 | us-gaap |
Derivative Assets
DerivativeAssets
|
338417000 | USD |
| CY2015Q4 | us-gaap |
Derivative Assets
DerivativeAssets
|
84349000 | USD |
| CY2014Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
291414000 | USD |
| CY2015Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
84349000 | USD |
| CY2014Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
47003000 | USD |
| CY2015Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
0 | USD |
| CY2014Q4 | us-gaap |
Derivative Collateral Obligation To Return Securities
DerivativeCollateralObligationToReturnSecurities
|
0 | USD |
| CY2015Q4 | us-gaap |
Derivative Collateral Obligation To Return Securities
DerivativeCollateralObligationToReturnSecurities
|
0 | USD |
| CY2014Q4 | us-gaap |
Derivative Collateral Right To Reclaim Securities
DerivativeCollateralRightToReclaimSecurities
|
0 | USD |
| CY2015Q4 | us-gaap |
Derivative Collateral Right To Reclaim Securities
DerivativeCollateralRightToReclaimSecurities
|
573000 | USD |
| CY2014Q4 | us-gaap |
Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
|
338417000 | USD |
| CY2015Q4 | us-gaap |
Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
|
85524000 | USD |
| CY2014Q4 | us-gaap |
Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral
DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral
|
338417000 | USD |
| CY2015Q4 | us-gaap |
Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral
DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral
|
84349000 | USD |
| CY2014Q4 | us-gaap |
Derivative Fair Value Of Derivative Liability
DerivativeFairValueOfDerivativeLiability
|
0 | USD |
| CY2015Q4 | us-gaap |
Derivative Fair Value Of Derivative Liability
DerivativeFairValueOfDerivativeLiability
|
1748000 | USD |
| CY2014Q4 | us-gaap |
Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral
DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral
|
0 | USD |
| CY2015Q4 | us-gaap |
Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral
DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral
|
0 | USD |
| CY2014Q4 | us-gaap |
Derivative Fair Value Of Derivative Net
DerivativeFairValueOfDerivativeNet
|
338417000 | USD |
| CY2015Q4 | us-gaap |
Derivative Fair Value Of Derivative Net
DerivativeFairValueOfDerivativeNet
|
51480000 | USD |
| CY2013 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
-47123000 | USD |
| CY2014Q1 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
-42500000 | USD |
| CY2014Q2 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
-85300000 | USD |
| CY2014Q3 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
132600000 | USD |
| CY2014Q4 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
329200000 | USD |
| CY2014 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
334011000 | USD |
| CY2015Q1 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
49800000 | USD |
| CY2015Q2 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
-33000000 | USD |
| CY2015Q3 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
42200000 | USD |
| CY2015Q4 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
14000000 | USD |
| CY2015 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
73061000 | USD |
| CY2014Q4 | us-gaap |
Derivative Liabilities
DerivativeLiabilities
|
0 | USD |
| CY2015Q4 | us-gaap |
Derivative Liabilities
DerivativeLiabilities
|
573000 | USD |
| CY2014Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
0 | USD |
| CY2015Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
573000 | USD |
| CY2014Q4 | us-gaap |
Derivative Liability Fair Value Gross Asset
DerivativeLiabilityFairValueGrossAsset
|
0 | USD |
| CY2015Q4 | us-gaap |
Derivative Liability Fair Value Gross Asset
DerivativeLiabilityFairValueGrossAsset
|
1175000 | USD |
| CY2013 | us-gaap |
Dilutive Securities Effect On Basic Earnings Per Share Other
DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
|
0 | USD |
| CY2014 | us-gaap |
Dilutive Securities Effect On Basic Earnings Per Share Other
DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
|
6500000 | USD |
| CY2015 | us-gaap |
Dilutive Securities Effect On Basic Earnings Per Share Other
DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
|
0 | USD |
| CY2013 | us-gaap |
Direct Operating Costs
DirectOperatingCosts
|
682830000 | USD |
| CY2014 | us-gaap |
Direct Operating Costs
DirectOperatingCosts
|
483889000 | USD |
| CY2015 | us-gaap |
Direct Operating Costs
DirectOperatingCosts
|
375354000 | USD |
| CY2014Q4 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
11072000 | USD |
| CY2015Q4 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
21572000 | USD |
| CY2013 | us-gaap |
Dividends Preferred Stock
DividendsPreferredStock
|
55525000 | USD |
| CY2014 | us-gaap |
Dividends Preferred Stock
DividendsPreferredStock
|
50025000 | USD |
| CY2015 | us-gaap |
Dividends Preferred Stock
DividendsPreferredStock
|
21763000 | USD |
| CY2013 | us-gaap |
Dividends Preferred Stock Stock
DividendsPreferredStockStock
|
0 | USD |
| CY2014 | us-gaap |
Dividends Preferred Stock Stock
DividendsPreferredStockStock
|
0 | USD |
| CY2015 | us-gaap |
Dividends Preferred Stock Stock
DividendsPreferredStockStock
|
16188000 | USD |
| CY2014Q4 | us-gaap |
Due From Affiliate Current
DueFromAffiliateCurrent
|
0 | USD |
| CY2015Q4 | us-gaap |
Due From Affiliate Current
DueFromAffiliateCurrent
|
0 | USD |
| CY2014Q4 | us-gaap |
Due To Affiliate Current
DueToAffiliateCurrent
|
0 | USD |
| CY2015Q4 | us-gaap |
Due To Affiliate Current
DueToAffiliateCurrent
|
0 | USD |
| CY2014Q4 | us-gaap |
Due To Related Parties Current
DueToRelatedPartiesCurrent
|
1852000 | USD |
| CY2015Q4 | us-gaap |
Due To Related Parties Current
DueToRelatedPartiesCurrent
|
1545000 | USD |
| CY2013 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-1.27 | |
| CY2014Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-0.31 | |
| CY2014Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-0.10 | |
| CY2014Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.30 | |
| CY2014Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.55 | |
| CY2014 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.42 | |
| CY2015Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-2.19 | |
| CY2015Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-2.78 | |
| CY2015Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-1.23 | |
| CY2015Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-1.13 | |
| CY2015 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-7.16 | |
| CY2013 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-1.27 | |
| CY2014Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-0.31 | |
| CY2014Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-0.10 | |
| CY2014Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.27 | |
| CY2014Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.48 | |
| CY2014 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.42 | |
| CY2015Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-2.19 | |
| CY2015Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-2.78 | |
| CY2015Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-1.23 | |
| CY2015Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-1.13 | |
| CY2015Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
42728000 | USD |
| CY2015 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-7.16 | |
| CY2013 | us-gaap |
Embedded Derivative Gain Loss On Embedded Derivative Net
EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet
|
0 | USD |
| CY2014 | us-gaap |
Embedded Derivative Gain Loss On Embedded Derivative Net
EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet
|
0 | USD |
| CY2015 | us-gaap |
Embedded Derivative Gain Loss On Embedded Derivative Net
EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet
|
-10377000 | USD |
| CY2014Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
44496000 | USD |
| CY2013 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
5600000 | USD |
| CY2015Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
|
6387944000 | USD |
| CY2013Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
|
2546680000 | USD |
| CY2015 | us-gaap |
Exploration Costs
ExplorationCosts
|
10698000 | USD |
| CY2014Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
|
1810201000 | USD |
| CY2015Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
|
838945000 | USD |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
6000000 | USD |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
5900000 | USD |
| CY2013 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
-4000 | USD |
| CY2014 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
14000 | USD |
| CY2015 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
0 | USD |
| CY2013 | us-gaap |
Exploration Costs
ExplorationCosts
|
17688000 | USD |
| CY2014 | us-gaap |
Exploration Costs
ExplorationCosts
|
6263000 | USD |
| CY2012Q4 | us-gaap |
Exploration Costs Cumulative
ExplorationCostsCumulative
|
339000 | USD |
| CY2015Q4 | us-gaap |
Exploration Costs Cumulative
ExplorationCostsCumulative
|
34988000 | USD |
| CY2013 | us-gaap |
Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
|
1406102000 | USD |
| CY2014 | us-gaap |
Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
|
1785963000 | USD |
| CY2015 | us-gaap |
Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
|
230055000 | USD |
| CY2013Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
|
19937484000 | USD |
| CY2014Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
|
21022320000 | USD |
| CY2013Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
|
2283541000 | USD |
| CY2014Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
|
3223740000 | USD |
| CY2015Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
|
901000 | USD |
| CY2013Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
|
8263550000 | USD |
| CY2014Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
|
9489013000 | USD |
| CY2015Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
|
2816556000 | USD |
| CY2013Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
|
6843713000 | USD |
| CY2014Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
|
6499366000 | USD |
| CY2015Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
|
2731542000 | USD |
| CY2013Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
|
4245939000 | USD |
| CY2014Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
|
5401261000 | USD |
| CY2015Q4 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
|
1501994000 | USD |
| CY2013 | us-gaap |
Gain Loss On Contract Termination
GainLossOnContractTermination
|
0 | USD |
| CY2014 | us-gaap |
Gain Loss On Contract Termination
GainLossOnContractTermination
|
0 | USD |
| CY2015 | us-gaap |
Gain Loss On Contract Termination
GainLossOnContractTermination
|
-50976000 | USD |
| CY2013 | us-gaap |
Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
|
-399086000 | USD |
| CY2014 | us-gaap |
Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
|
-10000 | USD |
| CY2015 | us-gaap |
Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
|
-1491000 | USD |
| CY2013 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
-82005000 | USD |
| CY2014 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
0 | USD |
| CY2015 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
641131000 | USD |
| CY2013 | us-gaap |
Gas Gathering Transportation Marketing And Processing Costs
GasGatheringTransportationMarketingAndProcessingCosts
|
53644000 | USD |
| CY2014 | us-gaap |
Gas Gathering Transportation Marketing And Processing Costs
GasGatheringTransportationMarketingAndProcessingCosts
|
49905000 | USD |
| CY2015 | us-gaap |
Gas Gathering Transportation Marketing And Processing Costs
GasGatheringTransportationMarketingAndProcessingCosts
|
26819000 | USD |
| CY2013 | us-gaap |
Gas Gathering Transportation Marketing And Processing Revenue
GasGatheringTransportationMarketingAndProcessingRevenue
|
58304000 | USD |
| CY2014 | us-gaap |
Gas Gathering Transportation Marketing And Processing Revenue
GasGatheringTransportationMarketingAndProcessingRevenue
|
55658000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
101453000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
-66492000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
-86470000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Asset Retirement Obligations
IncreaseDecreaseInAssetRetirementObligations
|
-133623000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Asset Retirement Obligations
IncreaseDecreaseInAssetRetirementObligations
|
-16322000 | USD |
| CY2015 | us-gaap |
Gas Gathering Transportation Marketing And Processing Revenue
GasGatheringTransportationMarketingAndProcessingRevenue
|
33809000 | USD |
| CY2014Q4 | us-gaap |
Gas Imbalance Asset Liability
GasImbalanceAssetLiability
|
-1400000 | USD |
| CY2015Q4 | us-gaap |
Gas Imbalance Asset Liability
GasImbalanceAssetLiability
|
-1500000 | USD |
| CY2013 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
330425000 | USD |
| CY2014 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
122865000 | USD |
| CY2015 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
150166000 | USD |
| CY2013 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
-508795000 | USD |
| CY2014 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
349605000 | USD |
| CY2015 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
-4320928000 | USD |
| CY2013 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
5684000 | USD |
| CY2014 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-2293000 | USD |
| CY2015 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
123000 | USD |
| CY2013 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
4610000 | USD |
| CY2014 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-1928000 | USD |
| CY2015 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
88000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Asset Retirement Obligations
IncreaseDecreaseInAssetRetirementObligations
|
-3984000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Billing In Excess Of Cost Of Earnings
IncreaseDecreaseInBillingInExcessOfCostOfEarnings
|
11229000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Billing In Excess Of Cost Of Earnings
IncreaseDecreaseInBillingInExcessOfCostOfEarnings
|
0 | USD |
| CY2015 | us-gaap |
Increase Decrease In Billing In Excess Of Cost Of Earnings
IncreaseDecreaseInBillingInExcessOfCostOfEarnings
|
0 | USD |
| CY2013 | us-gaap |
Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
|
-207729000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
|
-341183000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
|
273437000 | 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 |
| CY2014 | us-gaap |
Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
|
-256371000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
|
1426333000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
|
3269000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
|
-3164000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
|
-12710000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-5777000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
1132000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-2239000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
|
7934000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
|
-9549000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
|
-1148000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-90048000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
63492000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-201907000 | USD |
| CY2013 | us-gaap |
Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
|
255000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
|
0 | USD |
| CY2015 | us-gaap |
Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
|
0 | USD |
| CY2013 | us-gaap |
Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
|
1628000 | USD |
| CY2014 | us-gaap |
Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
|
50958000 | USD |
| CY2015 | us-gaap |
Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
|
18429000 | USD |
| CY2015 | us-gaap |
Incremental Common Shares Attributable To Conversion Of Debt Securities
IncrementalCommonSharesAttributableToConversionOfDebtSecurities
|
0 | shares |
| CY2013 | us-gaap |
Incremental Common Shares Attributable To Conversion Of Preferred Stock
IncrementalCommonSharesAttributableToConversionOfPreferredStock
|
0 | shares |
| CY2014 | us-gaap |
Incremental Common Shares Attributable To Conversion Of Preferred Stock
IncrementalCommonSharesAttributableToConversionOfPreferredStock
|
17918000 | shares |
| CY2015 | us-gaap |
Incremental Common Shares Attributable To Conversion Of Preferred Stock
IncrementalCommonSharesAttributableToConversionOfPreferredStock
|
0 | shares |
| CY2013 | us-gaap |
Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends
IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends
|
0 | shares |
| CY2014 | us-gaap |
Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends
IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends
|
2181000 | shares |
| CY2015 | us-gaap |
Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends
IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends
|
0 | shares |
| CY2013 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
270234000 | USD |
| CY2014 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
244109000 | USD |
| CY2015 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
321421000 | USD |
| CY2013 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
-270234000 | USD |
| CY2014 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
-244109000 | USD |
| CY2015 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
-321421000 | USD |
| CY2013 | us-gaap |
Interest Paid Net
InterestPaidNet
|
274850000 | USD |
| CY2014 | us-gaap |
Interest Paid Net
InterestPaidNet
|
235793000 | USD |
| CY2015 | us-gaap |
Interest Paid Net
InterestPaidNet
|
296386000 | USD |
| CY2014Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
79704000 | USD |
| CY2015Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
73320000 | USD |
| CY2014Q4 | us-gaap |
Land
Land
|
16300000 | USD |
| CY2015Q4 | us-gaap |
Land
Land
|
14260000 | USD |
| CY2013 | us-gaap |
Lease Operating Expense
LeaseOperatingExpense
|
516427000 | USD |
| CY2014 | us-gaap |
Lease Operating Expense
LeaseOperatingExpense
|
346088000 | USD |
| CY2015 | us-gaap |
Lease Operating Expense
LeaseOperatingExpense
|
308701000 | USD |
| CY2014Q4 | us-gaap |
Liabilities
Liabilities
|
4049405000 | USD |
| CY2015Q4 | us-gaap |
Liabilities
Liabilities
|
4178888000 | USD |
| CY2014Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
7259225000 | USD |
| CY2015Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
2991155000 | USD |
| CY2014Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
784451000 | USD |
| CY2015Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
437389000 | USD |
| CY2014Q4 | us-gaap |
Line Of Credit
LineOfCredit
|
0 | USD |
| CY2015Q4 | us-gaap |
Line Of Credit
LineOfCredit
|
0 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
3195436000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
3631506000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
0 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
0 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
1700000000 | USD |
| CY2014Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
3195436000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
3631506000 | USD |
| CY2014Q4 | us-gaap |
Machinery And Equipment Gross
MachineryAndEquipmentGross
|
602392000 | USD |
| CY2015Q4 | us-gaap |
Machinery And Equipment Gross
MachineryAndEquipmentGross
|
373687000 | USD |
| CY2014Q4 | us-gaap |
Marketable Securities Noncurrent
MarketableSecuritiesNoncurrent
|
11106000 | USD |
| CY2015Q4 | us-gaap |
Marketable Securities Noncurrent
MarketableSecuritiesNoncurrent
|
10106000 | USD |
| CY2014Q4 | us-gaap |
Minority Interest
MinorityInterest
|
1271995000 | USD |
| CY2015Q4 | us-gaap |
Minority Interest
MinorityInterest
|
510184000 | USD |
| CY2013 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
206470000 | USD |
| CY2014 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
193807000 | USD |
| CY2015 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
138305000 | USD |
| CY2014 | us-gaap |
Minority Interest Decrease From Redemptions
MinorityInterestDecreaseFromRedemptions
|
2730000 | USD |
| CY2013 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-1434089000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-397283000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
920438000 | USD |
| CY2013 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
1070356000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-857241000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-1039640000 | USD |
| CY2013 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
868630000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
621114000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
373537000 | USD |
| CY2013 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-553889000 | USD |
| CY2014 | us-gaap |
Net Income Loss
NetIncomeLoss
|
253285000 | USD |
| CY2015 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-3697545000 | USD |
| CY2013 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
39410000 | USD |
| CY2014 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
98613000 | USD |
| CY2015 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
-623506000 | USD |
| CY2013 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-609414000 | USD |
| CY2014Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-150217000 | USD |
| CY2014Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-46775000 | USD |
| CY2014Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
145957000 | USD |
| CY2014Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
254295000 | USD |
| CY2014 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
203260000 | USD |
| CY2015Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-1045834000 | USD |
| CY2015Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-1375556000 | USD |
| CY2015Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-649526000 | USD |
| CY2015Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-664579000 | USD |
| CY2015 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-3735495000 | USD |
| CY2013 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
-609414000 | USD |
| CY2014 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
209760000 | USD |
| CY2015 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
-3735495000 | USD |
| CY2013 | us-gaap |
Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
|
271566000 | USD |
| CY2014 | us-gaap |
Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
|
331694000 | USD |
| CY2015 | us-gaap |
Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
|
-3813465000 | USD |
| CY2013 | us-gaap |
Noncontrolling Interest Increase From Sale Of Parent Equity Interest
NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest
|
28985000 | USD |
| CY2014 | us-gaap |
Noncontrolling Interest Increase From Sale Of Parent Equity Interest
NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest
|
22119000 | USD |
| CY2013 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-339794000 | USD |
| CY2014 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-240619000 | USD |
| CY2015 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
321750000 | USD |
| CY2013 | us-gaap |
Notes Issued1
NotesIssued1
|
0 | USD |
| CY2014 | us-gaap |
Notes Issued1
NotesIssued1
|
0 | USD |
| CY2015 | us-gaap |
Notes Issued1
NotesIssued1
|
50310000 | USD |
| CY2013 | us-gaap |
Number Of Reportable Segments
NumberOfReportableSegments
|
3 | segment |
| CY2014 | us-gaap |
Number Of Reportable Segments
NumberOfReportableSegments
|
3 | segment |
| CY2015 | us-gaap |
Number Of Reportable Segments
NumberOfReportableSegments
|
3 | segment |
| CY2014Q4 | us-gaap |
Oil And Gas Joint Interest Billing Receivables Current
OilAndGasJointInterestBillingReceivablesCurrent
|
170937000 | USD |
| CY2015Q4 | us-gaap |
Oil And Gas Joint Interest Billing Receivables Current
OilAndGasJointInterestBillingReceivablesCurrent
|
60403000 | USD |
| CY2013Q4 | us-gaap |
Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
|
11504422000 | USD |
| CY2014Q4 | us-gaap |
Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
|
11997743000 | USD |
| CY2015Q4 | us-gaap |
Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
|
12892830000 | USD |
| CY2013Q4 | us-gaap |
Oil And Gas Property Full Cost Method Net
OilAndGasPropertyFullCostMethodNet
|
5741453000 | USD |
| CY2014Q4 | us-gaap |
Oil And Gas Property Full Cost Method Net
OilAndGasPropertyFullCostMethodNet
|
5638594000 | USD |
| CY2015Q4 | us-gaap |
Oil And Gas Property Full Cost Method Net
OilAndGasPropertyFullCostMethodNet
|
1742942000 | USD |
| CY2013 | us-gaap |
Oil And Gas Sales Revenue
OilAndGasSalesRevenue
|
1820278000 | USD |
| CY2014 | us-gaap |
Oil And Gas Sales Revenue
OilAndGasSalesRevenue
|
1420879000 | USD |
| CY2015 | us-gaap |
Oil And Gas Sales Revenue
OilAndGasSalesRevenue
|
707434000 | USD |
| CY2013 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-169001000 | USD |
| CY2014Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-82330000 | USD |
| CY2014Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
42079000 | USD |
| CY2014Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
256491000 | USD |
| CY2014Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
373984000 | USD |
| CY2014 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
590224000 | USD |
| CY2015Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-1088456000 | USD |
| CY2015Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-1535083000 | USD |
| CY2015Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-1059733000 | USD |
| CY2015Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-959406000 | USD |
| CY2015 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-4642678000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
1696000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
584000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
0 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
72000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
485000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
555000 | USD |
| CY2015Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
0 | USD |
| CY2013 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
3600000 | USD |
| CY2014 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
1700000 | USD |
| CY2015 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
1000000 | USD |
| CY2014Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
21193000 | USD |
| CY2015Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
19931000 | USD |
| CY2014Q4 | us-gaap |
Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
|
1853000 | USD |
| CY2015Q4 | us-gaap |
Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
|
0 | USD |
| CY2014Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
165247000 | USD |
| CY2015Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
82365000 | USD |
| CY2013 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
12445000 | USD |
| CY2014 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
3490000 | USD |
| CY2015 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
2040000 | USD |
| CY2013 | us-gaap |
Other Depreciation And Amortization
OtherDepreciationAndAmortization
|
62136000 | USD |
| CY2014 | us-gaap |
Other Depreciation And Amortization
OtherDepreciationAndAmortization
|
59636000 | USD |
| CY2015 | us-gaap |
Other Depreciation And Amortization
OtherDepreciationAndAmortization
|
47382000 | USD |
| CY2013 | us-gaap |
Other General And Administrative Expense
OtherGeneralAndAdministrativeExpense
|
207920000 | USD |
| CY2014 | us-gaap |
Other General And Administrative Expense
OtherGeneralAndAdministrativeExpense
|
113991000 | USD |
| CY2015 | us-gaap |
Other General And Administrative Expense
OtherGeneralAndAdministrativeExpense
|
137715000 | USD |
| CY2013 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
3929000 | USD |
| CY2014 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
407000 | USD |
| CY2015 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
1351000 | USD |
| CY2013 | us-gaap |
Other Operating Income
OtherOperatingIncome
|
14871000 | USD |
| CY2015Q4 | us-gaap |
Other Receivables Gross Current
OtherReceivablesGrossCurrent
|
8274000 | USD |
| CY2014Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
5216000 | USD |
| CY2015Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
0 | USD |
| CY2014Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
15116000 | USD |
| CY2015Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
14814000 | USD |
| CY2014 | us-gaap |
Other Operating Income
OtherOperatingIncome
|
6133000 | USD |
| CY2015 | us-gaap |
Other Operating Income
OtherOperatingIncome
|
5342000 | USD |
| CY2014Q4 | us-gaap |
Other Receivables Gross Current
OtherReceivablesGrossCurrent
|
4939000 | USD |
| CY2013 | us-gaap |
Payments For Proceeds From Derivative Instrument Financing Activities
PaymentsForProceedsFromDerivativeInstrumentFinancingActivities
|
-6660000 | USD |
| CY2014 | us-gaap |
Payments For Proceeds From Derivative Instrument Financing Activities
PaymentsForProceedsFromDerivativeInstrumentFinancingActivities
|
44128000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Derivative Instrument Financing Activities
PaymentsForProceedsFromDerivativeInstrumentFinancingActivities
|
0 | USD |
| CY2013 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
17028000 | USD |
| CY2014 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
18384000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-56504000 | USD |
| CY2013 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
| CY2014 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
111827000 | USD |
| CY2015 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
| CY2013 | us-gaap |
Payments To Minority Shareholders
PaymentsToMinorityShareholders
|
206470000 | USD |
| CY2014 | us-gaap |
Payments To Minority Shareholders
PaymentsToMinorityShareholders
|
193807000 | USD |
| CY2013 | us-gaap |
Payments Of Debt Extinguishment Costs
PaymentsOfDebtExtinguishmentCosts
|
61997000 | USD |
| CY2014 | us-gaap |
Payments Of Debt Extinguishment Costs
PaymentsOfDebtExtinguishmentCosts
|
0 | USD |
| CY2015 | us-gaap |
Payments Of Debt Extinguishment Costs
PaymentsOfDebtExtinguishmentCosts
|
0 | USD |
| CY2013 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
91000 | USD |
| CY2014 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
3947000 | USD |
| CY2015 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
53244000 | USD |
| CY2013 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
55525000 | USD |
| CY2014 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
55525000 | USD |
| CY2015 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
11262000 | USD |
| CY2013 | us-gaap |
Payments To Acquire Oil And Gas Property And Equipment
PaymentsToAcquireOilAndGasPropertyAndEquipment
|
17028000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Oil And Gas Property And Equipment
PaymentsToAcquireOilAndGasPropertyAndEquipment
|
18384000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Oil And Gas Property And Equipment
PaymentsToAcquireOilAndGasPropertyAndEquipment
|
216943000 | USD |
| CY2013 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
1496731000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
1553332000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
879201000 | USD |
| CY2015 | us-gaap |
Payments To Minority Shareholders
PaymentsToMinorityShareholders
|
138305000 | USD |
| CY2013 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
122505000 | USD |
| CY2014 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
8874000 | USD |
| CY2015 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
12451000 | USD |
| CY2013 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
55525000 | USD |
| CY2014 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
50025000 | USD |
| CY2015 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
37950000 | USD |
| CY2014Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.001 | |
| CY2015Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.001 | |
| CY2014Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
50000000 | shares |
| CY2015Q2 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
50000000 | shares |
| CY2015Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
50000000 | shares |
| CY2014Q4 | us-gaap |
Prepaid Expense Current
PrepaidExpenseCurrent
|
7981000 | USD |
| CY2015Q4 | us-gaap |
Prepaid Expense Current
PrepaidExpenseCurrent
|
6833000 | USD |
| CY2013 | us-gaap |
Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
|
474275000 | USD |
| CY2014 | us-gaap |
Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
|
364262000 | USD |
| CY2015 | us-gaap |
Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
|
217596000 | USD |
| CY2013 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | USD |
| CY2014 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
2065000000 | USD |
| CY2013 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
1579000 | USD |
| CY2014 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
0 | USD |
| CY2015 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
0 | USD |
| CY2013 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
5403000 | USD |
| CY2014 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-91649000 | USD |
| CY2015 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-66791000 | USD |
| CY2013 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
2584115000 | USD |
| CY2014 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
714475000 | USD |
| CY2014Q4 | us-gaap |
Profit Loss
ProfitLoss
|
314057000 | USD |
| CY2014 | us-gaap |
Profit Loss
ProfitLoss
|
351898000 | USD |
| CY2015Q1 | us-gaap |
Profit Loss
ProfitLoss
|
-1151874000 | USD |
| CY2015Q2 | us-gaap |
Profit Loss
ProfitLoss
|
-1588731000 | USD |
| CY2015Q3 | us-gaap |
Profit Loss
ProfitLoss
|
-796485000 | USD |
| CY2015Q4 | us-gaap |
Profit Loss
ProfitLoss
|
-783961000 | USD |
| CY2015 | us-gaap |
Profit Loss
ProfitLoss
|
-4321051000 | USD |
| CY2014Q2 | us-gaap |
Profit Loss
ProfitLoss
|
-17252000 | USD |
| CY2014Q3 | us-gaap |
Profit Loss
ProfitLoss
|
197499000 | USD |
| CY2015 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
56504000 | USD |
| CY2014Q4 | us-gaap |
Production Costs Cumulative
ProductionCostsCumulative
|
53600000 | USD |
| CY2015Q4 | us-gaap |
Production Costs Cumulative
ProductionCostsCumulative
|
34600000 | USD |
| CY2013 | us-gaap |
Production Tax Expense
ProductionTaxExpense
|
32292000 | USD |
| CY2014 | us-gaap |
Production Tax Expense
ProductionTaxExpense
|
31731000 | USD |
| CY2015 | us-gaap |
Production Tax Expense
ProductionTaxExpense
|
15440000 | USD |
| CY2013 | us-gaap |
Profit Loss
ProfitLoss
|
-514479000 | USD |
| CY2014Q1 | us-gaap |
Profit Loss
ProfitLoss
|
-142406000 | USD |
| CY2013 | us-gaap |
Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
|
1423883000 | USD |
| CY2014 | us-gaap |
Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
|
1608889000 | USD |
| CY2015 | us-gaap |
Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
|
701615000 | USD |
| CY2014Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
881883000 | USD |
| CY2015Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
615620000 | USD |
| CY2014Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
576463000 | USD |
| CY2015Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
491760000 | USD |
| CY2014 | us-gaap |
Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy
ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy
|
3.5 | MMBoe |
| CY2013 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
5497000 | USD |
| CY2014 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
818000 | USD |
| CY2015 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
1320000 | USD |
| CY2015 | us-gaap |
Repayments Of Convertible Debt
RepaymentsOfConvertibleDebt
|
30500000 | USD |
| CY2013 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
1115500000 | USD |
| CY2014 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
0 | USD |
| CY2015 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
939466000 | USD |
| CY2013 | us-gaap |
Results Of Operations Accretion Of Asset Retirement Obligations
ResultsOfOperationsAccretionOfAssetRetirementObligations
|
36777000 | USD |
| CY2014 | us-gaap |
Results Of Operations Accretion Of Asset Retirement Obligations
ResultsOfOperationsAccretionOfAssetRetirementObligations
|
9092000 | USD |
| CY2015 | us-gaap |
Results Of Operations Accretion Of Asset Retirement Obligations
ResultsOfOperationsAccretionOfAssetRetirementObligations
|
4477000 | USD |
| CY2013 | us-gaap |
Results Of Operations Expense From Oil And Gas Producing Activities
ResultsOfOperationsExpenseFromOilAndGasProducingActivities
|
1153228000 | USD |
| CY2014 | us-gaap |
Results Of Operations Expense From Oil And Gas Producing Activities
ResultsOfOperationsExpenseFromOilAndGasProducingActivities
|
985985000 | USD |
| CY2015 | us-gaap |
Results Of Operations Expense From Oil And Gas Producing Activities
ResultsOfOperationsExpenseFromOilAndGasProducingActivities
|
5122318000 | USD |
| CY2013 | us-gaap |
Results Of Operations Impairment Of Oil And Gas Properties
ResultsOfOperationsImpairmentOfOilAndGasProperties
|
0 | USD |
| CY2014 | us-gaap |
Results Of Operations Impairment Of Oil And Gas Properties
ResultsOfOperationsImpairmentOfOilAndGasProperties
|
164779000 | USD |
| CY2015 | us-gaap |
Results Of Operations Impairment Of Oil And Gas Properties
ResultsOfOperationsImpairmentOfOilAndGasProperties
|
4473787000 | USD |
| CY2013 | us-gaap |
Results Of Operations Income Before Income Taxes
ResultsOfOperationsIncomeBeforeIncomeTaxes
|
667050000 | USD |
| CY2014 | us-gaap |
Results Of Operations Income Before Income Taxes
ResultsOfOperationsIncomeBeforeIncomeTaxes
|
434894000 | USD |
| CY2015 | us-gaap |
Results Of Operations Income Before Income Taxes
ResultsOfOperationsIncomeBeforeIncomeTaxes
|
-4414884000 | USD |
| CY2013 | us-gaap |
Results Of Operations Income Tax Expense
ResultsOfOperationsIncomeTaxExpense
|
-7471000 | USD |
| CY2014 | us-gaap |
Results Of Operations Income Tax Expense
ResultsOfOperationsIncomeTaxExpense
|
-2852000 | USD |
| CY2015 | us-gaap |
Results Of Operations Income Tax Expense
ResultsOfOperationsIncomeTaxExpense
|
126000 | USD |
| CY2013 | us-gaap |
Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs
ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
|
674521000 | USD |
| CY2014 | us-gaap |
Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs
ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
|
437746000 | USD |
| CY2015 | us-gaap |
Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs
ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
|
-4415010000 | USD |
| CY2013 | us-gaap |
Results Of Operations Production Or Lifting Costs
ResultsOfOperationsProductionOrLiftingCosts
|
548719000 | USD |
| CY2014 | us-gaap |
Results Of Operations Production Or Lifting Costs
ResultsOfOperationsProductionOrLiftingCosts
|
377819000 | USD |
| CY2015 | us-gaap |
Results Of Operations Production Or Lifting Costs
ResultsOfOperationsProductionOrLiftingCosts
|
324141000 | USD |
| CY2014Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
-3257202000 | USD |
| CY2015Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
-6992697000 | USD |
| CY2013 | us-gaap |
Revenue From Related Parties
RevenueFromRelatedParties
|
1600000 | USD |
| CY2013 | us-gaap |
Revenue Oil And Gas Services
RevenueOilAndGasServices
|
66586000 | USD |
| CY2014 | us-gaap |
Revenue Oil And Gas Services
RevenueOilAndGasServices
|
76088000 | USD |
| CY2015 | us-gaap |
Revenue Oil And Gas Services
RevenueOilAndGasServices
|
22124000 | USD |
| CY2013 | us-gaap |
Revenues
Revenues
|
1983388000 | USD |
| CY2014Q1 | us-gaap |
Revenues
Revenues
|
443056000 | USD |
| CY2014Q2 | us-gaap |
Revenues
Revenues
|
374714000 | USD |
| CY2014Q3 | us-gaap |
Revenues
Revenues
|
394107000 | USD |
| CY2014Q4 | us-gaap |
Revenues
Revenues
|
346881000 | USD |
| CY2014 | us-gaap |
Revenues
Revenues
|
1558758000 | USD |
| CY2015Q1 | us-gaap |
Revenues
Revenues
|
215308000 | USD |
| CY2015Q2 | us-gaap |
Revenues
Revenues
|
229607000 | USD |
| CY2015Q3 | us-gaap |
Revenues
Revenues
|
180152000 | USD |
| CY2015Q4 | us-gaap |
Revenues
Revenues
|
143642000 | USD |
| CY2015 | us-gaap |
Revenues
Revenues
|
768709000 | USD |
| CY2013 | us-gaap |
Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
|
-296418000 | USD |
| CY2014 | us-gaap |
Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
|
-77688000 | USD |
| CY2015 | us-gaap |
Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
|
-1354778000 | USD |
| CY2013 | us-gaap |
Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
|
1271559000 | USD |
| CY2014 | us-gaap |
Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
|
1043060000 | USD |
| CY2015 | us-gaap |
Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
|
383293000 | USD |
| CY2013 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
85270000 | USD |
| CY2014 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
19994000 | USD |
| CY2015 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
18380000 | USD |
| CY2013 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
|
-217148000 | USD |
| CY2014 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
|
-163562000 | USD |
| CY2015 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
|
100013000 | USD |
| CY2013 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease
|
-1822757000 | USD |
| CY2014 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease
|
70141000 | USD |
| CY2015 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease
|
-2773190000 | USD |
| CY2012Q4 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
5840368000 | USD |
| CY2013Q4 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
4017611000 | USD |
| CY2014Q4 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
4087752000 | USD |
| CY2015Q4 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
1314562000 | USD |
| CY2014 | us-gaap |
Stock Issued During Period Value Conversion Of Convertible Securities
StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
|
0 | USD |
| CY2015 | us-gaap |
Stock Issued During Period Value Conversion Of Convertible Securities
StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
|
0 | USD |
| CY2013 | us-gaap |
Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures
StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
|
0 | USD |
| CY2014 | us-gaap |
Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures
StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
|
0 | USD |
| CY2015 | us-gaap |
Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures
StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
|
0 | USD |
| CY2014 | us-gaap |
Stock Repurchased And Retired During Period Shares
StockRepurchasedAndRetiredDuringPeriodShares
|
27400000 | shares |
| CY2014 | us-gaap |
Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
|
111300000 | USD |
| CY2014 | us-gaap |
Stock Repurchased During Period Value
StockRepurchasedDuringPeriodValue
|
111827000 | USD |
| CY2014Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1937825000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
-1697917000 | USD |
| CY2014 | us-gaap |
Treasury Stock Retired Cost Method Amount
TreasuryStockRetiredCostMethodAmount
|
0 | USD |
| CY2015 | us-gaap |
Treasury Stock Retired Cost Method Amount
TreasuryStockRetiredCostMethodAmount
|
0 | USD |
| CY2014Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
1113000 | shares |
| CY2015Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
2113000 | shares |
| CY2014Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
6980000 | USD |
| CY2015Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
5742000 | 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 |
| CY2014Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
3209820000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
-1187733000 | USD |
| CY2013 | us-gaap |
Treasury Stock Retired Cost Method Amount
TreasuryStockRetiredCostMethodAmount
|
0 | USD |
| CY2013 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
30126000 | USD |
| CY2014 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
6373000 | USD |
| CY2015 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
2428000 | USD |
| CY2013 | us-gaap |
Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense
UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense
|
0 | USD |
| CY2014Q1 | us-gaap |
Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense
UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense
|
164800000 | USD |
| CY2014 | us-gaap |
Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense
UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense
|
164800000 | USD |
| CY2015 | us-gaap |
Unamortized Costs Capitalized Less Related Deferred Income Taxes Exceed Ceiling Limitation Expense
UnamortizedCostsCapitalizedLessRelatedDeferredIncomeTaxesExceedCeilingLimitationExpense
|
4500000000 | USD |
| CY2013Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
1382000 | USD |
| CY2014Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
77000 | USD |
| CY2015Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
81000 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
17000 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
1288000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
0 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
4000 | USD |
| CY2013 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
-3842000 | USD |
| CY2014 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
0 | USD |
| CY2015 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
0 | USD |
| CY2013 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
481148000 | shares |
| CY2014 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
499743000 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
521936000 | shares |
| CY2013 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
481148000 | shares |
| CY2014 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
479644000 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
521936000 | shares |
| CY2013 | us-gaap |
Write Off Of Deferred Debt Issuance Cost
WriteOffOfDeferredDebtIssuanceCost
|
0 | USD |
| CY2014 | us-gaap |
Write Off Of Deferred Debt Issuance Cost
WriteOffOfDeferredDebtIssuanceCost
|
0 | USD |
| CY2015 | us-gaap |
Write Off Of Deferred Debt Issuance Cost
WriteOffOfDeferredDebtIssuanceCost
|
7108000 | USD |
| CY2015 | us-gaap |
Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Concentration of Risk. </font><font style="font-family:inherit;font-size:10pt;">All of the Company’s commodity derivative transactions have been carried out in the over-the-counter market. The entry into derivative transactions in the over-the-counter market involves the risk that the counterparties may be unable to meet the financial terms of the transactions. The counterparties for all of the Company’s commodity derivative transactions have an “investment grade” credit rating. The Company monitors on an ongoing basis the credit ratings of its commodity derivative counterparties and considers its counterparties’ credit default risk ratings in determining the fair value of its commodity derivative contracts. The Company’s commodity derivative contracts are with multiple counterparties to minimize its exposure to any individual counterparty.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">A default by the Company under its senior credit facility constitutes a default under its commodity derivative contracts with counterparties that are lenders under the senior credit facility. The Company does not require collateral or other security from counterparties to support commodity derivative instruments. The Company has master netting agreements with all of its commodity derivative counterparties, which allow the Company to net its commodity derivative assets and liabilities with the same counterparty. As a result of the netting provisions, the Company’s maximum amount of loss under commodity derivative transactions due to credit risk is limited to the net amounts due from the counterparties under the commodity derivative contracts. The Company’s loss is further limited as any amounts due from a defaulting counterparty that is a lender under the senior credit facility can be offset against amounts owed, if any, to such counterparty under the Company’s senior credit facility. </font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company operates a substantial portion of its oil and natural gas properties. As the operator of a property, the Company makes full payment for costs associated with the property and seeks reimbursement from the other working interest owners in the property for their share of those costs. The Company’s joint interest partners consist primarily of independent oil and natural gas producers. If the oil and natural gas exploration and production industry in general was adversely affected, the ability of the joint interest partners to reimburse the Company could be adversely affected.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The purchasers of the Company’s oil, natural gas and NGL production consist primarily of independent marketers, major oil and natural gas companies and gas pipeline companies. See Note </font><font style="font-family:inherit;font-size:10pt;">23</font><font style="font-family:inherit;font-size:10pt;"> for information regarding the Company’s major customers. The Company believes alternate purchasers are available in its areas of operations and does not believe the loss of any one purchaser would materially affect the Company’s ability to sell the oil, natural gas and NGLs it produces.</font></div></div> | |
| CY2015 | us-gaap |
Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;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> | |
| CY2015 | us-gaap |
Revenue Recognition Completed Contract Method
RevenueRecognitionCompletedContractMethod
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company accounted for its construction contract, discussed in Note </font><font style="font-family:inherit;font-size:10pt;">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. Contract gains, if any, are recorded upon substantial completion of the construction project. </font></div></div> | |
| CY2015 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;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 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%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;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 the valuations of guarantees; impairment tests of long-lived assets; depreciation, depletion and amortization; asset retirement obligations; determinations of significant alterations to the full cost pool and related estimates of fair value used to allocate the full cost pool net book value to divested properties, as necessary; 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> |
