2015 Q4 Form 10-K Financial Statement

#000148615916000090 Filed on February 25, 2016

View on sec.gov

Income Statement

Concept 2015 Q4 2014 Q4 2014 Q3
Revenue $182.1M $299.7M $368.7M
YoY Change -39.24% -10.17% 20.67%
Cost Of Revenue $56.30M $87.10M $93.90M
YoY Change -35.36% 14.45% 59.15%
Gross Profit $125.8M $212.6M $274.8M
YoY Change -40.83% -17.44% 11.48%
Gross Profit Margin 69.1% 70.94% 74.54%
Selling, General & Admin $33.60M $33.60M $31.20M
YoY Change 0.0% -1.47% 39.29%
% of Gross Profit 26.71% 15.8% 11.35%
Research & Development $100.0K $1.100M $1.100M
YoY Change -90.91% -320.0% 120.0%
% of Gross Profit 0.08% 0.52% 0.4%
Depreciation & Amortization $123.9M $116.8M $107.0M
YoY Change 6.08% 15.3% 47.09%
% of Gross Profit 98.49% 54.94% 38.93%
Operating Expenses $157.5M $151.5M $139.3M
YoY Change 3.96% 12.22% 45.86%
Operating Profit -$53.17M $15.92M $134.1M
YoY Change -433.87% -86.96% -11.11%
Interest Expense $62.10M $266.9M $39.42M
YoY Change -76.73% -856.09% 72.49%
% of Operating Profit 1676.09% 29.4%
Other Income/Expense, Net -$3.300M -$100.0K $63.97M
YoY Change 3200.0% -200.0% -202.11%
Pretax Income $5.700M $282.8M $198.1M
YoY Change -97.98% 225.43% 124.53%
Income Tax $1.700M $106.3M $76.48M
% Of Pretax Income 29.82% 37.59% 38.61%
Net Earnings $3.968M $176.5M $121.6M
YoY Change -97.75% 223.92% 123.1%
Net Earnings / Revenue 2.18% 58.9% 32.98%
Basic Earnings Per Share $0.03 $1.22
Diluted Earnings Per Share $0.03 $1.76 $1.21
COMMON SHARES
Basic Shares Outstanding 139.1M shares 101.3M shares 99.72M shares
Diluted Shares Outstanding 100.3M shares

Balance Sheet

Concept 2015 Q4 2014 Q4 2014 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments $9.700M $45.80M $67.20M
YoY Change -78.82% -50.16% -46.41%
Cash & Equivalents $9.730M $45.81M $67.19M
Short-Term Investments
Other Short-Term Assets $50.00K $6.539M $1.972M
YoY Change -99.24% 1572.38% 316.91%
Inventory $11.07M $21.35M $24.65M
Prepaid Expenses $7.328M $14.27M $14.25M
Receivables $197.4M $130.9M $191.7M
Other Receivables $0.00 $0.00 $100.0K
Total Short-Term Assets $365.3M $696.6M $531.7M
YoY Change -47.56% 55.63% -62.64%
LONG-TERM ASSETS
Property, Plant & Equipment $5.218B $5.187B $4.875B
YoY Change 0.61% 27.13% 86.54%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets $23.34M $12.34M $50.90M
YoY Change 89.24% -93.32% 8.76%
Total Long-Term Assets $5.284B $5.212B $4.926B
YoY Change 1.37% 23.21% 85.17%
TOTAL ASSETS
Total Short-Term Assets $365.3M $696.6M $531.7M
Total Long-Term Assets $5.284B $5.212B $4.926B
Total Assets $5.649B $5.909B $5.457B
YoY Change -4.39% 26.32% 33.65%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $9.983M $20.96M $39.55M
YoY Change -52.37% 134.96% 0.21%
Accrued Expenses $167.7M $410.4M $340.5M
YoY Change -59.14% 69.7% 71.53%
Deferred Revenue
YoY Change
Short-Term Debt $0.00 $0.00 $0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities $370.6M $795.1M $669.6M
YoY Change -53.4% 70.48% 57.86%
LONG-TERM LIABILITIES
Long-Term Debt $2.303B $2.671B $2.550B
YoY Change -13.78% 5.33% 8.05%
Other Long-Term Liabilities $3.160M $2.116M $1.996M
YoY Change 49.34% -3.07% -13.59%
Total Long-Term Liabilities $2.306B $2.673B $2.552B
YoY Change -13.73% 5.32% 8.03%
TOTAL LIABILITIES
Total Short-Term Liabilities $370.6M $795.1M $669.6M
Total Long-Term Liabilities $2.306B $2.673B $2.552B
Total Liabilities $3.330B $4.037B $3.767B
YoY Change -17.51% 20.02% 21.24%
SHAREHOLDERS EQUITY
Retained Earnings $834.5M $874.8M $698.3M
YoY Change -4.6% 137.78% 122.8%
Common Stock $1.498B $1.008B $1.002B
YoY Change 48.62% 2.25% 50.13%
Preferred Stock
YoY Change
Treasury Stock (at cost) $13.62M $10.67M
YoY Change 27.64%
Treasury Stock Shares 507.9K shares 285.7K shares
Shareholders Equity $2.319B $1.872B $1.690B
YoY Change
Total Liabilities & Shareholders Equity $5.649B $5.909B $5.457B
YoY Change -4.39% 25.41% 33.65%

Cashflow Statement

Concept 2015 Q4 2014 Q4 2014 Q3
OPERATING ACTIVITIES
Net Income $3.968M $176.5M $121.6M
YoY Change -97.75% 223.92% 123.1%
Depreciation, Depletion And Amortization $123.9M $116.8M $107.0M
YoY Change 6.08% 15.3% 47.09%
Cash From Operating Activities $79.50M $199.0M $187.2M
YoY Change -60.05% 23.45% 4.64%
INVESTING ACTIVITIES
Capital Expenditures $108.1M $401.6M $383.9M
YoY Change -73.08% -75.9% 7.06%
Acquisitions
YoY Change
Other Investing Activities $79.20M $31.30M -$11.20M
YoY Change 153.04% -96.82% -98.88%
Cash From Investing Activities -$28.70M -$370.4M -$395.0M
YoY Change -92.25% -45.82% -70.85%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities -53.20M 149.9M 248.0M
YoY Change -135.49% -69.33% -78.25%
NET CHANGE
Cash From Operating Activities 79.50M 199.0M 187.2M
Cash From Investing Activities -28.70M -370.4M -395.0M
Cash From Financing Activities -53.20M 149.9M 248.0M
Net Change In Cash -2.400M -21.50M 40.20M
YoY Change -88.84% -36.01% -211.67%
FREE CASH FLOW
Cash From Operating Activities $79.50M $199.0M $187.2M
Capital Expenditures $108.1M $401.6M $383.9M
Free Cash Flow -$28.60M -$202.6M -$196.7M
YoY Change -85.88% -86.54% 9.46%

Facts In Submission

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123215000 USD
CY2014Q4 us-gaap Capitalized Exploratory Well Costs
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34522000 USD
CY2015Q4 us-gaap Capitalized Exploratory Well Costs
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2289000 USD
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0 USD
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213447000 USD
CY2013Q4 us-gaap Cash And Cash Equivalents At Carrying Value
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91901000 USD
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45811000 USD
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0.01
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-46090000 USD
CY2015 us-gaap Cash And Cash Equivalents Period Increase Decrease
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CY2014Q4 us-gaap Commitments And Contingencies
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CY2015Q4 us-gaap Commitments And Contingencies
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CY2014Q4 us-gaap Common Stock Par Or Stated Value Per Share
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0.01
CY2014Q4 us-gaap Common Stock Shares Authorized
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300000000 shares
CY2015Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
300000000 shares
CY2014Q4 us-gaap Common Stock Shares Issued
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101627296 shares
CY2015Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
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CY2014Q4 us-gaap Common Stock Shares Outstanding
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CY2015Q4 us-gaap Common Stock Shares Outstanding
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CY2014Q4 us-gaap Common Stock Value
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1001000 USD
CY2015Q4 us-gaap Common Stock Value
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1376000 USD
CY2013 us-gaap Cost Of Services Oil And Gas
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30713000 USD
CY2014 us-gaap Cost Of Services Oil And Gas
CostOfServicesOilAndGas
50252000 USD
CY2015 us-gaap Cost Of Services Oil And Gas
CostOfServicesOilAndGas
28031000 USD
CY2013 us-gaap Costs And Expenses
CostsAndExpenses
637601000 USD
CY2014 us-gaap Costs And Expenses
CostsAndExpenses
931575000 USD
CY2015 us-gaap Costs And Expenses
CostsAndExpenses
903899000 USD
CY2013 us-gaap Costs Incurred Acquisition Of Oil And Gas Properties
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2494256000 USD
CY2014 us-gaap Costs Incurred Acquisition Of Oil And Gas Properties
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1515204000 USD
CY2015 us-gaap Costs Incurred Acquisition Of Oil And Gas Properties
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469541000 USD
CY2013 us-gaap Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
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752454000 USD
CY2014 us-gaap Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
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37048000 USD
CY2015 us-gaap Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
28737000 USD
CY2013 us-gaap Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
837419000 USD
CY2014 us-gaap Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
30891000 USD
CY2015 us-gaap Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
3226000 USD
CY2013 us-gaap Costs Incurred Asset Retirement Obligation Incurred
CostsIncurredAssetRetirementObligationIncurred
11856000 USD
CY2014 us-gaap Costs Incurred Asset Retirement Obligation Incurred
CostsIncurredAssetRetirementObligationIncurred
6278000 USD
CY2015 us-gaap Costs Incurred Asset Retirement Obligation Incurred
CostsIncurredAssetRetirementObligationIncurred
1474000 USD
CY2013 us-gaap Costs Incurred Development Costs
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890267000 USD
CY2014 us-gaap Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
1437923000 USD
CY2015 us-gaap Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
433735000 USD
CY2013 us-gaap Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
2260000 USD
CY2014 us-gaap Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
3064000 USD
CY2015 us-gaap Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
2369000 USD
CY2013 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
475000 USD
CY2014 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
134000 USD
CY2015 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
-9000 USD
CY2013 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
475000 USD
CY2014 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
134000 USD
CY2015 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
-9000 USD
CY2013 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
0 USD
CY2014 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
0 USD
CY2015 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
0 USD
CY2013 us-gaap Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
0 USD
CY2014 us-gaap Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
251002000 USD
CY2015 us-gaap Decrease Due To Sales Of Minerals In Place
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0 USD
CY2013 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
122853000 USD
CY2014 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
273576000 USD
CY2015 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
-11667000 USD
CY2015Q4 us-gaap Deferred Finance Costs Noncurrent Net
DeferredFinanceCostsNoncurrentNet
42900000 USD
CY2013 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
134583000 USD
CY2014 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
307457000 USD
CY2015 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
-16114000 USD
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DeferredIncomeTaxLiabilities
672293000 USD
CY2015Q4 us-gaap Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
742226000 USD
CY2013 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
11730000 USD
CY2014 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
33881000 USD
CY2015 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
-4447000 USD
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48024000 USD
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134071000 USD
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0 USD
CY2015Q4 us-gaap Deferred Tax Assets Net Noncurrent
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0 USD
CY2014Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards
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35650000 USD
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121248000 USD
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1349000 USD
CY2015Q4 us-gaap Deferred Tax Assets Other Tax Carryforwards
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1601000 USD
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11025000 USD
CY2015Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation
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11222000 USD
CY2015Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
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3600000 USD
CY2014Q4 us-gaap Deferred Tax Liabilities
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624269000 USD
CY2015Q4 us-gaap Deferred Tax Liabilities
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608155000 USD
CY2014Q4 us-gaap Deferred Tax Liabilities Current
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97499000 USD
CY2015Q4 us-gaap Deferred Tax Liabilities Current
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0 USD
CY2014Q4 us-gaap Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
105911000 USD
CY2015Q4 us-gaap Deferred Tax Liabilities Derivatives
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45728000 USD
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526770000 USD
CY2015Q4 us-gaap Deferred Tax Liabilities Noncurrent
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608155000 USD
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566382000 USD
CY2015Q4 us-gaap Deferred Tax Liabilities Property Plant And Equipment
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696498000 USD
CY2013 us-gaap Depreciation Depletion And Amortization
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307055000 USD
CY2014 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
412334000 USD
CY2015 us-gaap Depreciation Depletion And Amortization
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485322000 USD
CY2014Q4 us-gaap Derivative Assets Current
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302159000 USD
CY2015Q4 us-gaap Derivative Assets Current
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139697000 USD
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13348000 USD
CY2014 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
8400000 USD
CY2015 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
8700000 USD
CY2015Q4 us-gaap Derivative Assets Noncurrent
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15776000 USD
CY2014Q4 us-gaap Derivative Credit Risk Valuation Adjustment Derivative Assets
DerivativeCreditRiskValuationAdjustmentDerivativeAssets
-600000 USD
CY2015Q4 us-gaap Derivative Credit Risk Valuation Adjustment Derivative Assets
DerivativeCreditRiskValuationAdjustmentDerivativeAssets
-300000 USD
CY2015Q4 us-gaap Derivative Fair Value Of Derivative Net
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155473000 USD
CY2013 us-gaap Derivative Gain Loss On Derivative Net
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-35432000 USD
CY2014 us-gaap Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
327011000 USD
CY2015 us-gaap Derivative Gain Loss On Derivative Net
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210376000 USD
CY2014Q4 us-gaap Disposal Group Including Discontinued Operation Assets Noncurrent
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0 USD
CY2015Q4 us-gaap Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
26728000 USD
CY2014Q4 us-gaap Due From Affiliate Current
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0 USD
CY2015Q4 us-gaap Due From Affiliate Current
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0 USD
CY2014Q4 us-gaap Due To Affiliate Current
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0 USD
CY2015Q4 us-gaap Due To Affiliate Current
DueToAffiliateCurrent
0 USD
CY2013 us-gaap Earnings Per Share Basic
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2.45
CY2014 us-gaap Earnings Per Share Basic
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5.09
CY2015 us-gaap Earnings Per Share Basic
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-0.31
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2.44
CY2014 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
5.05
CY2015 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-0.31
CY2013 us-gaap Effective Income Tax Rate Continuing Operations
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0.3720
CY2014 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.3776
CY2015 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.2860
CY2013 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.35
CY2014 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.35
CY2015 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.35
CY2013 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Other
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther
0.0014
CY2014 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Other
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther
-0.0005
CY2015 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Other
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-0.0134
CY2013 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
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0.0000
CY2014 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
0.0000
CY2015 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
-0.1017
CY2013 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
0.0206
CY2014 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
0.0281
CY2015 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
0.0511
CY2013 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
4500000 USD
CY2014Q4 us-gaap Energy Related Inventory Petroleum
EnergyRelatedInventoryPetroleum
7129000 USD
CY2015Q4 us-gaap Energy Related Inventory Petroleum
EnergyRelatedInventoryPetroleum
6152000 USD
CY2013 us-gaap Exploration Expense
ExplorationExpense
2260000 USD
CY2014 us-gaap Exploration Expense
ExplorationExpense
3064000 USD
CY2015 us-gaap Exploration Expense
ExplorationExpense
2369000 USD
CY2014Q4 us-gaap Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
0 USD
CY2015Q4 us-gaap Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
0 USD
CY2014Q4 us-gaap Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
0 USD
CY2015Q4 us-gaap Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
0 USD
CY2015Q4 us-gaap Financing Receivable Recorded Investment Past Due
FinancingReceivableRecordedInvestmentPastDue
0 USD
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
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19063500000 USD
CY2014Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
21656832000 USD
CY2015Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
8582831000 USD
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
1904095000 USD
CY2014Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
2563062000 USD
CY2015Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
909562000 USD
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
3628977000 USD
CY2014Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
3188389000 USD
CY2015Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
225662000 USD
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
8056661000 USD
CY2014Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
8810955000 USD
CY2015Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
3605090000 USD
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
5473767000 USD
CY2014Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
7094426000 USD
CY2015Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
3842517000 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
4329102000 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
4829294000 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
1690760000 USD
CY2013 us-gaap Gain Loss On Sale Of Property
GainLossOnSaleOfProperty
0 USD
CY2014 us-gaap Gain Loss On Sale Of Property
GainLossOnSaleOfProperty
186999000 USD
CY2015 us-gaap Gain Loss On Sale Of Property
GainLossOnSaleOfProperty
0 USD
CY2013 us-gaap Gas Gathering Transportation Marketing And Processing Costs
GasGatheringTransportationMarketingAndProcessingCosts
25924000 USD
CY2014 us-gaap Gas Gathering Transportation Marketing And Processing Costs
GasGatheringTransportationMarketingAndProcessingCosts
29133000 USD
CY2015 us-gaap Gas Gathering Transportation Marketing And Processing Costs
GasGatheringTransportationMarketingAndProcessingCosts
31610000 USD
CY2013 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
75310000 USD
CY2014 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
92306000 USD
CY2015 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
92498000 USD
CY2013 us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
1168000 USD
CY2014 us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
47238000 USD
CY2015 us-gaap Impairment Of Oil And Gas Properties
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46109000 USD
CY2013 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
363017000 USD
CY2014 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
814468000 USD
CY2015 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
-56371000 USD
CY2013 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
135058000 USD
CY2014 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
307591000 USD
CY2015 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-16123000 USD
CY2013 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
127056000 USD
CY2014 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
285064000 USD
CY2015 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
-19730000 USD
CY2013 us-gaap Income Tax Reconciliation Nondeductible Expense Other
IncomeTaxReconciliationNondeductibleExpenseOther
533000 USD
CY2014 us-gaap Income Tax Reconciliation Nondeductible Expense Other
IncomeTaxReconciliationNondeductibleExpenseOther
-374000 USD
CY2015 us-gaap Income Tax Reconciliation Nondeductible Expense Other
IncomeTaxReconciliationNondeductibleExpenseOther
756000 USD
CY2013 us-gaap Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
0 USD
CY2014 us-gaap Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
0 USD
CY2015 us-gaap Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
5734000 USD
CY2013 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
7469000 USD
CY2014 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
22901000 USD
CY2015 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
-2883000 USD
CY2013 us-gaap Income Taxes Paid
IncomeTaxesPaid
750000 USD
CY2014 us-gaap Income Taxes Paid
IncomeTaxesPaid
5329000 USD
CY2015 us-gaap Income Taxes Paid
IncomeTaxesPaid
0 USD
CY2013 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
107451000 USD
CY2014 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
76723000 USD
CY2015 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
-71617000 USD
CY2013 us-gaap Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
107473000 USD
CY2014 us-gaap Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
-16702000 USD
CY2015 us-gaap Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
-108461000 USD
CY2013 us-gaap Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
57566000 USD
CY2014 us-gaap Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
-61760000 USD
CY2015 us-gaap Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
150333000 USD
CY2013 us-gaap Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
-774910000 USD
CY2014 us-gaap Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
259592000 USD
CY2015 us-gaap Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
1391358000 USD
CY2013 us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
13941000 USD
CY2014 us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
3776000 USD
CY2015 us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
-6873000 USD
CY2013 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
56000 USD
CY2014 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
6135000 USD
CY2015 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-6489000 USD
CY2013 us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
0 USD
CY2014 us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
0 USD
CY2015 us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
6500000 USD
CY2013 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
3248000 USD
CY2014 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
-114000 USD
CY2015 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
950000 USD
CY2013 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
887000 USD
CY2014 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
-139000 USD
CY2015 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
-33000 USD
CY2013 us-gaap Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
8191000 USD
CY2014 us-gaap Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
3199000 USD
CY2013 us-gaap Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
858382000 USD
CY2015 us-gaap Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
-1828000 USD
CY2014 us-gaap Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
38035000 USD
CY2015 us-gaap Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
14378000 USD
CY2013 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
4600000 USD
CY2014 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
8800000 USD
CY2015 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
18600000 USD
CY2013 us-gaap Interest Expense
InterestExpense
107165000 USD
CY2014 us-gaap Interest Expense
InterestExpense
158390000 USD
CY2015 us-gaap Interest Expense
InterestExpense
149648000 USD
CY2013 us-gaap Interest Paid Net
InterestPaidNet
85596000 USD
CY2014 us-gaap Interest Paid Net
InterestPaidNet
150181000 USD
CY2015 us-gaap Interest Paid Net
InterestPaidNet
145333000 USD
CY2014Q4 us-gaap Interest Payable Current
InterestPayableCurrent
49786000 USD
CY2015Q4 us-gaap Interest Payable Current
InterestPayableCurrent
49413000 USD
CY2014Q4 us-gaap Inventory Net
InventoryNet
21354000 USD
CY2015Q4 us-gaap Inventory Net
InventoryNet
11072000 USD
CY2013 us-gaap Lease Operating Expense
LeaseOperatingExpense
94634000 USD
CY2014 us-gaap Lease Operating Expense
LeaseOperatingExpense
169600000 USD
CY2015 us-gaap Lease Operating Expense
LeaseOperatingExpense
144481000 USD
CY2014Q4 us-gaap Liabilities
Liabilities
4036775000 USD
CY2015Q4 us-gaap Liabilities
Liabilities
3330033000 USD
CY2014Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
5909076000 USD
CY2015Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
5649375000 USD
CY2014Q4 us-gaap Liabilities Current
LiabilitiesCurrent
795128000 USD
CY2015Q4 us-gaap Liabilities Current
LiabilitiesCurrent
370568000 USD
CY2015Q4 us-gaap Liabilities Of Disposal Group Including Discontinued Operation
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation
10228000 USD
CY2014Q4 us-gaap Liabilities Of Disposal Group Including Discontinued Operation Noncurrent
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
0 USD
CY2015Q4 us-gaap Liabilities Of Disposal Group Including Discontinued Operation Noncurrent
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
10228000 USD
CY2014Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
2670664000 USD
CY2015Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
2302584000 USD
CY2013Q3 us-gaap Loss Contingency Number Of Defendants
LossContingencyNumberOfDefendants
50 defendant
CY2013 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
1625674000 USD
CY2014 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
158846000 USD
CY2015 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
83252000 USD
CY2013 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-2445076000 USD
CY2014 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-1077452000 USD
CY2015 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-479148000 USD
CY2013 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
697856000 USD
CY2014 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
872516000 USD
CY2015 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
359815000 USD
CY2013 us-gaap Net Income Loss
NetIncomeLoss
227959000 USD
CY2014Q1 us-gaap Net Income Loss
NetIncomeLoss
169953000 USD
CY2014Q2 us-gaap Net Income Loss
NetIncomeLoss
38833000 USD
CY2014Q3 us-gaap Net Income Loss
NetIncomeLoss
121587000 USD
CY2014Q4 us-gaap Net Income Loss
NetIncomeLoss
176504000 USD
CY2014 us-gaap Net Income Loss
NetIncomeLoss
506877000 USD
CY2015Q1 us-gaap Net Income Loss
NetIncomeLoss
-18041000 USD
CY2015Q2 us-gaap Net Income Loss
NetIncomeLoss
-53230000 USD
CY2015Q3 us-gaap Net Income Loss
NetIncomeLoss
27055000 USD
CY2015Q4 us-gaap Net Income Loss
NetIncomeLoss
3968000 USD
CY2015 us-gaap Net Income Loss
NetIncomeLoss
-40248000 USD
CY2013 us-gaap Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
254979000 USD
CY2014 us-gaap Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
-588212000 USD
CY2015 us-gaap Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
-3201195000 USD
CY2013 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-141381000 USD
CY2014 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
168816000 USD
CY2015 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
57793000 USD
CY2015 us-gaap Number Of Operating Segments
NumberOfOperatingSegments
3 Segment
CY2014Q4 us-gaap Oil And Gas Joint Interest Billing Receivables Current
OilAndGasJointInterestBillingReceivablesCurrent
175537000 USD
CY2015Q4 us-gaap Oil And Gas Joint Interest Billing Receivables Current
OilAndGasJointInterestBillingReceivablesCurrent
100914000 USD
CY2014Q4 us-gaap Oil And Gas Property Successful Effort Method Accumulated Depreciation Depletion And Amortization
OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization
1043121000 USD
CY2015Q4 us-gaap Oil And Gas Property Successful Effort Method Accumulated Depreciation Depletion And Amortization
OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization
1428427000 USD
CY2014Q4 us-gaap Oil And Gas Property Successful Effort Method Gross
OilAndGasPropertySuccessfulEffortMethodGross
5966140000 USD
CY2015Q4 us-gaap Oil And Gas Property Successful Effort Method Gross
OilAndGasPropertySuccessfulEffortMethodGross
6284401000 USD
CY2013 us-gaap Oil And Gas Revenue
OilAndGasRevenue
1141999000 USD
CY2014Q1 us-gaap Oil And Gas Revenue
OilAndGasRevenue
349519000 USD
CY2014Q2 us-gaap Oil And Gas Revenue
OilAndGasRevenue
372378000 USD
CY2014Q3 us-gaap Oil And Gas Revenue
OilAndGasRevenue
368659000 USD
CY2014Q4 us-gaap Oil And Gas Revenue
OilAndGasRevenue
299672000 USD
CY2014 us-gaap Oil And Gas Revenue
OilAndGasRevenue
1390228000 USD
CY2015Q1 us-gaap Oil And Gas Revenue
OilAndGasRevenue
180387000 USD
CY2015Q2 us-gaap Oil And Gas Revenue
OilAndGasRevenue
230046000 USD
CY2015Q3 us-gaap Oil And Gas Revenue
OilAndGasRevenue
197235000 USD
CY2015Q4 us-gaap Oil And Gas Revenue
OilAndGasRevenue
182067000 USD
CY2015 us-gaap Oil And Gas Revenue
OilAndGasRevenue
789735000 USD
CY2013 us-gaap Oil And Gas Sales Revenue
OilAndGasSalesRevenue
1084412000 USD
CY2014 us-gaap Oil And Gas Sales Revenue
OilAndGasSalesRevenue
1304004000 USD
CY2015 us-gaap Oil And Gas Sales Revenue
OilAndGasSalesRevenue
721672000 USD
CY2013 us-gaap Operating Income Loss
OperatingIncomeLoss
504398000 USD
CY2014Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
329080000 USD
CY2014Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
166545000 USD
CY2014Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
134103000 USD
CY2014Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
15924000 USD
CY2014 us-gaap Operating Income Loss
OperatingIncomeLoss
645652000 USD
CY2015Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
-33635000 USD
CY2015Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
-7437000 USD
CY2015Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
-19926000 USD
CY2015Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
-53166000 USD
CY2015 us-gaap Operating Income Loss
OperatingIncomeLoss
-114164000 USD
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
26548000 USD
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
7737000 USD
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
3735000 USD
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
4986000 USD
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
4969000 USD
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
5121000 USD
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
0 USD
CY2013 us-gaap Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
3000000 USD
CY2014 us-gaap Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
5000000 USD
CY2015 us-gaap Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
7200000 USD
CY2015Q4 us-gaap Operating Loss Carryforwards
OperatingLossCarryforwards
244400000 USD
CY2014Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
5569000 USD
CY2015Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
6987000 USD
CY2014Q4 us-gaap Other Assets Current
OtherAssetsCurrent
6539000 USD
CY2015Q4 us-gaap Other Assets Current
OtherAssetsCurrent
50000 USD
CY2014Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
12335000 USD
CY2015Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
23343000 USD
CY2014Q4 us-gaap Other Inventory Supplies
OtherInventorySupplies
14225000 USD
CY2015Q4 us-gaap Other Inventory Supplies
OtherInventorySupplies
4920000 USD
CY2014Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
0 USD
CY2015Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
6500000 USD
CY2014Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
2116000 USD
CY2015Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
3160000 USD
CY2013 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
1216000 USD
CY2014 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
195000 USD
CY2015 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
-2935000 USD
CY2013 us-gaap Payments For Proceeds From Derivative Instrument Investing Activities
PaymentsForProceedsFromDerivativeInstrumentInvestingActivities
8133000 USD
CY2014 us-gaap Payments For Proceeds From Derivative Instrument Investing Activities
PaymentsForProceedsFromDerivativeInstrumentInvestingActivities
-6774000 USD
CY2015 us-gaap Payments For Proceeds From Derivative Instrument Investing Activities
PaymentsForProceedsFromDerivativeInstrumentInvestingActivities
-370410000 USD
CY2013 us-gaap Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
22910000 USD
CY2014 us-gaap Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
99000 USD
CY2015 us-gaap Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
14632000 USD
CY2013 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
1566000 USD
CY2014 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
5309000 USD
CY2015 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
2949000 USD
CY2013 us-gaap Payments To Acquire Oil And Gas Property
PaymentsToAcquireOilAndGasProperty
1560072000 USD
CY2014 us-gaap Payments To Acquire Oil And Gas Property
PaymentsToAcquireOilAndGasProperty
46247000 USD
CY2015 us-gaap Payments To Acquire Oil And Gas Property
PaymentsToAcquireOilAndGasProperty
28817000 USD
CY2013 us-gaap Payments To Explore And Develop Oil And Gas Properties
PaymentsToExploreAndDevelopOilAndGasProperties
893524000 USD
CY2014 us-gaap Payments To Explore And Develop Oil And Gas Properties
PaymentsToExploreAndDevelopOilAndGasProperties
1354281000 USD
CY2015 us-gaap Payments To Explore And Develop Oil And Gas Properties
PaymentsToExploreAndDevelopOilAndGasProperties
819847000 USD
CY2014Q4 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
14273000 USD
CY2015Q4 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
7328000 USD
CY2013 us-gaap Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
373912000 USD
CY2014 us-gaap Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
249926000 USD
CY2015 us-gaap Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
216981000 USD
CY2013 us-gaap Proceeds From Contributions From Affiliates
ProceedsFromContributionsFromAffiliates
0 USD
CY2014 us-gaap Proceeds From Contributions From Affiliates
ProceedsFromContributionsFromAffiliates
0 USD
CY2015 us-gaap Proceeds From Contributions From Affiliates
ProceedsFromContributionsFromAffiliates
0 USD
CY2015Q4 us-gaap Proved Undeveloped Reserve Boe1
ProvedUndevelopedReserveBOE1
70656 MBoe
CY2013 us-gaap Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
0 USD
CY2014 us-gaap Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
324852000 USD
CY2015 us-gaap Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
1075000 USD
CY2013 us-gaap Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
0 USD
CY2014 us-gaap Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
0 USD
CY2015 us-gaap Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
5548000 USD
CY2015Q1 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
462800000 USD
CY2013 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
314580000 USD
CY2014 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
0 USD
CY2015 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
462833000 USD
CY2013 us-gaap Proceeds From Issuance Of Senior Long Term Debt
ProceedsFromIssuanceOfSeniorLongTermDebt
1000000000 USD
CY2014 us-gaap Proceeds From Issuance Of Senior Long Term Debt
ProceedsFromIssuanceOfSeniorLongTermDebt
0 USD
CY2015 us-gaap Proceeds From Issuance Of Senior Long Term Debt
ProceedsFromIssuanceOfSeniorLongTermDebt
0 USD
CY2013 us-gaap Proceeds From Long Term Lines Of Credit
ProceedsFromLongTermLinesOfCredit
600000000 USD
CY2014 us-gaap Proceeds From Long Term Lines Of Credit
ProceedsFromLongTermLinesOfCredit
620000000 USD
CY2015 us-gaap Proceeds From Long Term Lines Of Credit
ProceedsFromLongTermLinesOfCredit
630000000 USD
CY2013 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
0 USD
CY2014 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-176000 USD
CY2015 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
0 USD
CY2013 us-gaap Proceeds From Sale Maturity And Collection Of Shortterm Investments
ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments
25000000 USD
CY2014 us-gaap Proceeds From Sale Maturity And Collection Of Shortterm Investments
ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments
0 USD
CY2015 us-gaap Proceeds From Sale Maturity And Collection Of Shortterm Investments
ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments
0 USD
CY2014 us-gaap Proceeds From Sale Of Oil And Gas Property And Equipment
ProceedsFromSaleOfOilAndGasPropertyAndEquipment
324852000 USD
CY2015 us-gaap Proceeds From Sale Of Oil And Gas Property And Equipment
ProceedsFromSaleOfOilAndGasPropertyAndEquipment
1075000 USD
CY2013 us-gaap Production Tax Expense
ProductionTaxExpense
100537000 USD
CY2014 us-gaap Production Tax Expense
ProductionTaxExpense
127648000 USD
CY2015 us-gaap Production Tax Expense
ProductionTaxExpense
69584000 USD
CY2014Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
5186786000 USD
CY2015Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
5218242000 USD
CY2014Q4 us-gaap Property Plant And Equipment Other
PropertyPlantAndEquipmentOther
313439000 USD
CY2015Q4 us-gaap Property Plant And Equipment Other
PropertyPlantAndEquipmentOther
443265000 USD
CY2014Q4 us-gaap Property Plant And Equipment Other Accumulated Depreciation
PropertyPlantAndEquipmentOtherAccumulatedDepreciation
49672000 USD
CY2015Q4 us-gaap Property Plant And Equipment Other Accumulated Depreciation
PropertyPlantAndEquipmentOtherAccumulatedDepreciation
80997000 USD
CY2014Q4 us-gaap Property Plant And Equipment Other Net
PropertyPlantAndEquipmentOtherNet
263767000 USD
CY2015Q4 us-gaap Property Plant And Equipment Other Net
PropertyPlantAndEquipmentOtherNet
362268000 USD
CY2013 us-gaap Proved Developed And Undeveloped Reserve Extension And Discovery Energy
ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy
46094 MBoe
CY2014 us-gaap Proved Developed And Undeveloped Reserve Extension And Discovery Energy
ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy
92596 MBoe
CY2015 us-gaap Proved Developed And Undeveloped Reserve Extension And Discovery Energy
ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy
46640 MBoe
CY2012Q4 us-gaap Proved Developed And Undeveloped Reserve Net Energy
ProvedDevelopedAndUndevelopedReserveNetEnergy
143345 MBoe
CY2013Q4 us-gaap Proved Developed And Undeveloped Reserve Net Energy
ProvedDevelopedAndUndevelopedReserveNetEnergy
227920 MBoe
CY2014Q4 us-gaap Proved Developed And Undeveloped Reserve Net Energy
ProvedDevelopedAndUndevelopedReserveNetEnergy
272086 MBoe
CY2015Q4 us-gaap Proved Developed And Undeveloped Reserve Net Energy
ProvedDevelopedAndUndevelopedReserveNetEnergy
218233 MBoe
CY2013 us-gaap Proved Developed And Undeveloped Reserve Production Energy
ProvedDevelopedAndUndevelopedReserveProductionEnergy
12375 MBoe
CY2014 us-gaap Proved Developed And Undeveloped Reserve Production Energy
ProvedDevelopedAndUndevelopedReserveProductionEnergy
16664 MBoe
CY2015 us-gaap Proved Developed And Undeveloped Reserve Production Energy
ProvedDevelopedAndUndevelopedReserveProductionEnergy
18423 MBoe
CY2013 us-gaap Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy
ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy
45731 MBoe
CY2014 us-gaap Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy
ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy
1799 MBoe
CY2015 us-gaap Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy
ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy
2565 MBoe
CY2013 us-gaap Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy
ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy
5125 MBoe
CY2014 us-gaap Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy
ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy
-25117 MBoe
CY2015 us-gaap Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy
ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy
-84635 MBoe
CY2013 us-gaap Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions
ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions
31856 MMcf
CY2013 us-gaap Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions
ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions
40784 MBbls
CY2014 us-gaap Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions
ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions
80855 MBbls
CY2014 us-gaap Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions
ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions
70449 MMcf
CY2015 us-gaap Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions
ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions
46072 MMcf
CY2015 us-gaap Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease
ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease
-55065 MMcf
CY2014 us-gaap Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease
ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease
-12290 MMcf
CY2014 us-gaap Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease
ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease
-23069 MBbls
CY2015 us-gaap Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease
ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease
-75458 MBbls
CY2015 us-gaap Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions
ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions
38962 MBbls
CY2012Q4 us-gaap Proved Developed And Undeveloped Reserves Net
ProvedDevelopedAndUndevelopedReservesNet
91530 MMcf
CY2012Q4 us-gaap Proved Developed And Undeveloped Reserves Net
ProvedDevelopedAndUndevelopedReservesNet
128090 MBbls
CY2013Q4 us-gaap Proved Developed And Undeveloped Reserves Net
ProvedDevelopedAndUndevelopedReservesNet
198590 MBbls
CY2013Q4 us-gaap Proved Developed And Undeveloped Reserves Net
ProvedDevelopedAndUndevelopedReservesNet
175979 MMcf
CY2014Q4 us-gaap Proved Developed And Undeveloped Reserves Net
ProvedDevelopedAndUndevelopedReservesNet
235399 MBbls
CY2014Q4 us-gaap Proved Developed And Undeveloped Reserves Net
ProvedDevelopedAndUndevelopedReservesNet
220120 MMcf
CY2015Q4 us-gaap Proved Developed And Undeveloped Reserves Net
ProvedDevelopedAndUndevelopedReservesNet
184928 MBbls
CY2015Q4 us-gaap Proved Developed And Undeveloped Reserves Net
ProvedDevelopedAndUndevelopedReservesNet
199828 MMcf
CY2013 us-gaap Proved Developed And Undeveloped Reserves Production
ProvedDevelopedAndUndevelopedReservesProduction
11133 MBbls
CY2013 us-gaap Proved Developed And Undeveloped Reserves Production
ProvedDevelopedAndUndevelopedReservesProduction
7450 MMcf
CY2014 us-gaap Proved Developed And Undeveloped Reserves Production
ProvedDevelopedAndUndevelopedReservesProduction
10691 MMcf
CY2014 us-gaap Proved Developed And Undeveloped Reserves Production
ProvedDevelopedAndUndevelopedReservesProduction
14883 MBbls
CY2015 us-gaap Proved Developed And Undeveloped Reserves Production
ProvedDevelopedAndUndevelopedReservesProduction
14001 MMcf
CY2015 us-gaap Proved Developed And Undeveloped Reserves Production
ProvedDevelopedAndUndevelopedReservesProduction
16090 MBbls
CY2013 us-gaap Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace
49631 MMcf
CY2013 us-gaap Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace
37459 MBbls
CY2014 us-gaap Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace
1523 MMcf
CY2014 us-gaap Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace
1546 MBbls
CY2015 us-gaap Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace
2115 MBbls
CY2015 us-gaap Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace
2702 MMcf
CY2013 us-gaap Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease
ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease
10412 MMcf
CY2013 us-gaap Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease
ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease
3390 MBbls
CY2014Q1 us-gaap Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy
ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy
8448 MBoe
CY2013 us-gaap Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy
ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy
0 MBoe
CY2014 us-gaap Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy
ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy
8448 MBoe
CY2015 us-gaap Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy
ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy
0 MBoe
CY2013 us-gaap Proved Developed And Undeveloped Reserves Sales Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace
0 MMcf
CY2013 us-gaap Proved Developed And Undeveloped Reserves Sales Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace
0 MBbls
CY2014 us-gaap Proved Developed And Undeveloped Reserves Sales Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace
7640 MBbls
CY2014 us-gaap Proved Developed And Undeveloped Reserves Sales Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace
4850 MMcf
CY2015 us-gaap Proved Developed And Undeveloped Reserves Sales Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace
0 MBbls
CY2015 us-gaap Proved Developed And Undeveloped Reserves Sales Of Minerals In Place
ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace
0 MMcf
CY2013Q4 us-gaap Proved Developed Reserves Boe1
ProvedDevelopedReservesBOE1
122136 MBoe
CY2014Q4 us-gaap Proved Developed Reserves Boe1
ProvedDevelopedReservesBOE1
146343 MBoe
CY2015Q4 us-gaap Proved Developed Reserves Boe1
ProvedDevelopedReservesBOE1
147577 MBoe
CY2013Q4 us-gaap Proved Developed Reserves Volume
ProvedDevelopedReservesVolume
92170 MMcf
CY2013Q4 us-gaap Proved Developed Reserves Volume
ProvedDevelopedReservesVolume
106774 MBbls
CY2014Q4 us-gaap Proved Developed Reserves Volume
ProvedDevelopedReservesVolume
114016 MMcf
CY2014Q4 us-gaap Proved Developed Reserves Volume
ProvedDevelopedReservesVolume
127340 MBbls
CY2015Q4 us-gaap Proved Developed Reserves Volume
ProvedDevelopedReservesVolume
120789 MMcf
CY2015Q4 us-gaap Proved Developed Reserves Volume
ProvedDevelopedReservesVolume
127445 MBbls
CY2014Q4 us-gaap Proved Oil And Gas Property Successful Effort Method
ProvedOilAndGasPropertySuccessfulEffortMethod
5156875000 USD
CY2015Q4 us-gaap Proved Oil And Gas Property Successful Effort Method
ProvedOilAndGasPropertySuccessfulEffortMethod
5655759000 USD
CY2013Q4 us-gaap Proved Undeveloped Reserve Boe1
ProvedUndevelopedReserveBOE1
105784 MBoe
CY2014Q4 us-gaap Proved Undeveloped Reserve Boe1
ProvedUndevelopedReserveBOE1
125743 MBoe
CY2013 us-gaap Results Of Operations Exploration Expense
ResultsOfOperationsExplorationExpense
2260000 USD
CY2014 us-gaap Results Of Operations Exploration Expense
ResultsOfOperationsExplorationExpense
3064000 USD
CY2015 us-gaap Results Of Operations Exploration Expense
ResultsOfOperationsExplorationExpense
2369000 USD
CY2013 us-gaap Results Of Operations Impairment Of Oil And Gas Properties
ResultsOfOperationsImpairmentOfOilAndGasProperties
1168000 USD
CY2014 us-gaap Results Of Operations Impairment Of Oil And Gas Properties
ResultsOfOperationsImpairmentOfOilAndGasProperties
47238000 USD
CY2013Q4 us-gaap Proved Undeveloped Reserve Volume
ProvedUndevelopedReserveVolume
83809 MMcf
CY2013Q4 us-gaap Proved Undeveloped Reserve Volume
ProvedUndevelopedReserveVolume
91816 MBbls
CY2014Q4 us-gaap Proved Undeveloped Reserve Volume
ProvedUndevelopedReserveVolume
108059 MBbls
CY2014Q4 us-gaap Proved Undeveloped Reserve Volume
ProvedUndevelopedReserveVolume
106104 MMcf
CY2015Q4 us-gaap Proved Undeveloped Reserve Volume
ProvedUndevelopedReserveVolume
79039 MMcf
CY2015Q4 us-gaap Proved Undeveloped Reserve Volume
ProvedUndevelopedReserveVolume
57483 MBbls
CY2013 us-gaap Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves
ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves
264023000 USD
CY2014 us-gaap Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves
ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves
425037000 USD
CY2015 us-gaap Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves
ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves
84228000 USD
CY2013 us-gaap Repayments Of Long Term Lines Of Credit
RepaymentsOfLongTermLinesOfCredit
264430000 USD
CY2014 us-gaap Repayments Of Long Term Lines Of Credit
RepaymentsOfLongTermLinesOfCredit
455570000 USD
CY2015 us-gaap Repayments Of Long Term Lines Of Credit
RepaymentsOfLongTermLinesOfCredit
992000000 USD
CY2013 us-gaap Results Of Operations Depreciation Depletion And Amortization And Valuation Provisions
ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions
298999000 USD
CY2014 us-gaap Results Of Operations Depreciation Depletion And Amortization And Valuation Provisions
ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions
400118000 USD
CY2015 us-gaap Results Of Operations Depreciation Depletion And Amortization And Valuation Provisions
ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions
472800000 USD
CY2013 us-gaap Results Of Operations Dry Hole Costs
ResultsOfOperationsDryHoleCosts
0 USD
CY2014 us-gaap Results Of Operations Dry Hole Costs
ResultsOfOperationsDryHoleCosts
0 USD
CY2015 us-gaap Results Of Operations Dry Hole Costs
ResultsOfOperationsDryHoleCosts
0 USD
CY2015 us-gaap Results Of Operations Impairment Of Oil And Gas Properties
ResultsOfOperationsImpairmentOfOilAndGasProperties
46109000 USD
CY2013 us-gaap Results Of Operations Income Tax Expense
ResultsOfOperationsIncomeTaxExpense
196312000 USD
CY2014 us-gaap Results Of Operations Income Tax Expense
ResultsOfOperationsIncomeTaxExpense
197701000 USD
CY2015 us-gaap Results Of Operations Income Tax Expense
ResultsOfOperationsIncomeTaxExpense
-18382000 USD
CY2013 us-gaap Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs
ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
364578000 USD
CY2014 us-gaap Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs
ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
329502000 USD
CY2015 us-gaap Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs
ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
-30794000 USD
CY2013 us-gaap Results Of Operations Production Or Lifting Costs
ResultsOfOperationsProductionOrLiftingCosts
221095000 USD
CY2014 us-gaap Results Of Operations Production Or Lifting Costs
ResultsOfOperationsProductionOrLiftingCosts
326381000 USD
CY2015 us-gaap Results Of Operations Production Or Lifting Costs
ResultsOfOperationsProductionOrLiftingCosts
245675000 USD
CY2013 us-gaap Results Of Operations Revenue From Oil And Gas Producing Activities
ResultsOfOperationsRevenueFromOilAndGasProducingActivities
1084412000 USD
CY2014 us-gaap Results Of Operations Revenue From Oil And Gas Producing Activities
ResultsOfOperationsRevenueFromOilAndGasProducingActivities
1304004000 USD
CY2015 us-gaap Results Of Operations Revenue From Oil And Gas Producing Activities
ResultsOfOperationsRevenueFromOilAndGasProducingActivities
721672000 USD
CY2014Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
874769000 USD
CY2015Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
834521000 USD
CY2013 us-gaap Revenue Oil And Gas Services
RevenueOilAndGasServices
57587000 USD
CY2014 us-gaap Revenue Oil And Gas Services
RevenueOilAndGasServices
86224000 USD
CY2015 us-gaap Revenue Oil And Gas Services
RevenueOilAndGasServices
68063000 USD
CY2013 us-gaap Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
99954000 USD
CY2014 us-gaap Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
-604651000 USD
CY2015 us-gaap Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
-946729000 USD
CY2013 us-gaap Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
857540000 USD
CY2014Q4 us-gaap Treasury Stock Value
TreasuryStockValue
10671000 USD
CY2015Q4 us-gaap Treasury Stock Value
TreasuryStockValue
13620000 USD
CY2014Q4 us-gaap Unproved Oil And Gas Property Successful Effort Method
UnprovedOilAndGasPropertySuccessfulEffortMethod
809265000 USD
CY2014 us-gaap Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
979938000 USD
CY2015 us-gaap Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
477755000 USD
CY2013 us-gaap Share Based Compensation
ShareBasedCompensation
11982000 USD
CY2014 us-gaap Share Based Compensation
ShareBasedCompensation
21302000 USD
CY2015Q4 us-gaap Unproved Oil And Gas Property Successful Effort Method
UnprovedOilAndGasPropertySuccessfulEffortMethod
628642000 USD
CY2014Q4 us-gaap Treasury Stock Shares
TreasuryStockShares
285677 shares
CY2015Q4 us-gaap Treasury Stock Shares
TreasuryStockShares
507926 shares
CY2015 us-gaap Share Based Compensation
ShareBasedCompensation
25272000 USD
CY2015 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1
ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
P3Y
CY2015Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
8550000 shares
CY2013Q4 us-gaap Shares Issued Price Per Share
SharesIssuedPricePerShare
44.94
CY2015Q1 us-gaap Shares Issued Price Per Share
SharesIssuedPricePerShare
12.80
CY2013 us-gaap Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
-1951000 USD
CY2014 us-gaap Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
-107585000 USD
CY2015 us-gaap Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
-172681000 USD
CY2012Q4 us-gaap Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
2259897000 USD
CY2013Q4 us-gaap Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
3727559000 USD
CY2014Q4 us-gaap Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
3981661000 USD
CY2015Q4 us-gaap Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
1914330000 USD
CY2013 us-gaap Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
314580000 USD
CY2015 us-gaap Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
462833000 USD
CY2013 us-gaap Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
12571000 USD
CY2014 us-gaap Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
22360000 USD
CY2015 us-gaap Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
27405000 USD
CY2012Q4 us-gaap Stockholders Equity
StockholdersEquity
795005000 USD
CY2013Q4 us-gaap Stockholders Equity
StockholdersEquity
1348549000 USD
CY2014Q4 us-gaap Stockholders Equity
StockholdersEquity
1872301000 USD
CY2015Q4 us-gaap Stockholders Equity
StockholdersEquity
2319342000 USD
CY2015Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
0 USD
CY2013 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
544000 shares
CY2014 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
688000 shares
CY2015 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
0 shares
CY2013 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
93411000 shares
CY2014 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
100365000 shares
CY2015 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
130186000 shares
CY2013 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
92867000 shares
CY2014 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
99677000 shares
CY2015 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
130186000 shares
CY2015 us-gaap Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:18px;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Concentrations of Market and Credit Risk</font></div><div style="line-height:120%;padding-top:6px;text-indent:65px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The future results of the Company&#8217;s oil and natural gas operations will be affected by the market prices of oil and natural gas. The availability of a ready market for oil and natural gas products in the future will depend on numerous factors beyond the control of the Company, including weather, imports, marketing of competitive fuels, proximity and capacity of oil and natural gas pipelines and other transportation facilities, any oversupply or undersupply of oil, natural gas and liquid products, the regulatory environment, the economic environment, and other regional and political events, none of which can be predicted with certainty. The current global oversupply of crude oil has caused a sharp decline in oil prices since mid-2014, and an extended period of low prices for oil could have a material adverse effect on the Company&#8217;s financial position, cash flows and results of operations.</font></div><div style="line-height:120%;padding-top:12px;text-indent:65px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company operates in the exploration, development and production sector of the oil and gas industry. The Company&#8217;s receivables include amounts due from purchasers of its oil and natural gas production and amounts due from joint interest partners for their respective portions of operating expenses and exploration and development costs. While certain of these customers and joint interest partners are affected by periodic downturns in the economy in general or in their specific segment of the oil or natural gas industry, including the current period of low commodity prices, the Company believes that its level of credit-related losses due to such economic fluctuations has been and will continue to be immaterial to the Company&#8217;s results of operations over the long-term.&#160;In addition, a portion of the Company&#8217;s trade receivables are collateralized.</font></div><div style="line-height:120%;padding-top:12px;text-indent:65px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company manages and controls market and counterparty credit risk. In the normal course of business, collateral is not required for financial instruments with credit risk. Financial instruments which potentially subject the Company to credit risk consist principally of temporary cash balances and derivative financial instruments. The Company maintains cash and cash equivalents in bank deposit accounts which, at times, may exceed the federally insured limits. The Company has not experienced any significant losses from such investments. The Company attempts to limit the amount of credit exposure to any one financial institution or company. The Company believes the credit quality of its customers is generally high. In the normal course of business, letters of credit or parent guarantees are required for counterparties which management perceives to have a higher credit risk.</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%;padding-top:18px;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;padding-top:6px;text-indent:65px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Preparation of the Company&#8217;s consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. The most significant estimates pertain to proved oil and natural gas reserves and related cash flow estimates used in impairment tests of long-lived assets, estimates of future development, dismantlement and abandonment costs, estimates relating to certain oil and natural gas revenues and expenses and estimates of expenses related to legal, environmental and other contingencies. Certain of these estimates require assumptions regarding future commodity prices, future costs and expenses and future production rates. Actual results could differ from those estimates.</font></div><div style="line-height:120%;padding-top:12px;text-indent:65px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Estimates of oil and natural gas reserves and their values, future production rates and future costs and expenses are inherently uncertain for numerous reasons, including many factors beyond the Company&#8217;s control. Reservoir engineering is a subjective process of estimating underground accumulations of oil and natural gas that cannot be measured in an exact manner. The accuracy of any reserve estimate is a function of the quality of data available and of engineering and geological interpretation and judgment. In addition, estimates of reserves may be revised based on actual production, results of subsequent exploration and development activities, prevailing commodity prices, operating costs and other factors. These revisions may be material and could materially affect future depreciation, depletion and amortization (&#8220;DD&amp;A&#8221;) expense, dismantlement and abandonment costs, and impairment expense.</font></div></div>

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