$NOG
NORTHERN OIL & GAS, INC. Stock $nog

$nog Overview Financials Valuation SEC Filings Company Website

2016 Form 10-K Financial Statement

#000110448517000014 Filed on March 02, 2017

Income Statement

Concept	2016	2015 Q4	2015 Q3
Revenue	$144.9M	$56.91M	$101.2M
YoY Change	-47.32%	-77.9%	-44.05%
Cost Of Revenue	$45.68M	$16.00M	$17.60M
YoY Change	-38.0%	-38.22%	-34.33%
Gross Profit	$99.22M	$40.90M	$83.50M
YoY Change	-50.73%	-82.35%	-45.78%
Gross Profit Margin	68.48%	71.86%	82.55%
Selling, General & Admin	$14.76M	$5.800M	$4.600M
YoY Change	-22.5%	18.37%	-2.13%
% of Gross Profit	14.87%	14.18%	5.51%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$61.24M	$24.20M	$31.60M
YoY Change	-55.55%	-50.51%	-30.85%
% of Gross Profit	61.72%	59.17%	37.84%
Operating Expenses	$374.2M	$213.1M	$408.3M
YoY Change	-73.16%	296.12%	711.78%
Operating Profit	-$229.3M	-$156.2M	-$307.2M
YoY Change	-79.52%	-187.8%	-396.21%
Interest Expense	$64.49M	-$16.10M	$16.15M
YoY Change	10.5%	42.48%	-252.4%
% of Operating Profit
Other Income/Expense, Net	-$65.59M	-$16.11M	-$16.15M
YoY Change	12.33%
Pretax Income	-$294.9M	-$172.3M	-$323.3M
YoY Change	-74.96%	-203.42%	-447.66%
Income Tax	-$1.402M	-$50.00	-$77.54K
% Of Pretax Income
Net Earnings	-$293.5M	-$172.3M	-$323.2M
YoY Change	-69.91%	-266.33%	-657.31%
Net Earnings / Revenue	-202.54%	-302.77%	-319.55%
Basic Earnings Per Share	-$4.80	-$2.84	-$5.33
Diluted Earnings Per Share	-$4.80	-$2.84	-$5.33
COMMON SHARES
Basic Shares Outstanding	61.17M shares		60.68M shares
Diluted Shares Outstanding	61.17M shares		60.68M shares

Balance Sheet

Concept	2016	2015 Q4	2015 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$6.486M	$3.400M	$7.000M
YoY Change	91.31%	-63.44%	-12.5%
Cash & Equivalents	$6.486M	$3.390M	$7.042M
Short-Term Investments
Other Short-Term Assets	$3.166M	$67.20M	$90.90M
YoY Change	-95.29%	-48.58%	818.18%
Inventory
Prepaid Expenses
Receivables	$35.84M	$51.45M	$91.30M
Other Receivables	$1.402M	$0.00	$0.00
Total Short-Term Assets	$46.89M	$122.0M	$189.2M
YoY Change	-61.57%	-46.0%	77.82%
LONG-TERM ASSETS
Property, Plant & Equipment	$376.2M	$589.3M	$757.2M
YoY Change	-36.16%	-66.55%	-54.64%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$8.430M	$10.08M	$54.90M
YoY Change	-16.37%	-74.02%	165.22%
Total Long-Term Assets	$384.6M	$599.4M	$812.0M
YoY Change	-35.83%	-66.71%	-51.96%
TOTAL ASSETS
Total Short-Term Assets	$46.89M	$122.0M	$189.2M
Total Long-Term Assets	$384.6M	$599.4M	$812.0M
Total Assets	$431.5M	$721.4M	$1.001B
YoY Change	-40.18%	-64.4%	-44.27%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$56.15M	$65.32M	$98.90M
YoY Change	-14.04%	-71.8%	-55.07%
Accrued Expenses	$10.78M	$7.894M	$25.60M
YoY Change	-14.51%	-22.61%	39.13%
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	$77.44M	$78.12M	$156.4M
YoY Change	-0.86%	-72.66%	-34.59%
LONG-TERM LIABILITIES
Long-Term Debt	$832.6M	$835.3M	$867.7M
YoY Change	-0.32%	3.62%	17.83%
Other Long-Term Liabilities	$8.886M	$0.00	$5.500M
YoY Change	57.9%	-100.0%	-19.12%
Total Long-Term Liabilities	$841.5M	$0.00	$873.2M
YoY Change	0.07%	-100.0%	17.49%
TOTAL LIABILITIES
Total Short-Term Liabilities	$77.44M	$78.12M	$156.4M
Total Long-Term Liabilities	$841.5M	$0.00	$873.2M
Total Liabilities	$919.0M	$919.0M	$1.030B
YoY Change	-0.01%	-26.82%	-8.75%
SHAREHOLDERS EQUITY
Retained Earnings		-$637.9M
YoY Change
Common Stock		$440.3M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	-$487.4M	-$197.6M	-$28.30M
YoY Change
Total Liabilities & Shareholders Equity	$431.5M	$721.4M	$1.001B
YoY Change	-40.18%	-64.4%	-44.27%

Cashflow Statement

Concept	2016	2015 Q4	2015 Q3
OPERATING ACTIVITIES
Net Income	-$293.5M	-$172.3M	-$323.2M
YoY Change	-69.91%	-266.33%	-657.31%
Depreciation, Depletion And Amortization	$61.24M	$24.20M	$31.60M
YoY Change	-55.55%	-50.51%	-30.85%
Cash From Operating Activities	$101.9M	$72.20M	$63.10M
YoY Change	-58.75%	11.25%	-21.61%
INVESTING ACTIVITIES
Capital Expenditures	$214.7K	-$55.70M	-$45.10M
YoY Change	136.56%	-57.71%	-61.25%
Acquisitions
YoY Change
Other Investing Activities	$2.187M	$0.00	$0.00
YoY Change	938.62%
Cash From Investing Activities	-$90.96M	-$55.70M	-$45.00M
YoY Change	-68.52%	-57.71%	-61.34%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$0.00
YoY Change	-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-7.832M	-20.10M	-18.10M
YoY Change	-121.77%	-129.52%	-160.94%
NET CHANGE
Cash From Operating Activities	101.9M	72.20M	63.10M
Cash From Investing Activities	-90.96M	-55.70M	-45.00M
Cash From Financing Activities	-7.832M	-20.10M	-18.10M
Net Change In Cash	3.096M	-3.600M	0.000000007451
YoY Change	-152.05%	-376.92%	-100.0%
FREE CASH FLOW
Cash From Operating Activities	$101.9M	$72.20M	$63.10M
Capital Expenditures	$214.7K	-$55.70M	-$45.10M
Free Cash Flow	$101.7M	$127.9M	$108.2M
YoY Change	-58.82%	-34.94%	-45.05%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2016	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2016
CY2016	dei	Amendment Flag AmendmentFlag	false
CY2016	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2016	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2016	dei	Document Period End Date DocumentPeriodEndDate	2016-12-31
CY2016	dei	Document Type DocumentType	10-K
CY2016	dei	Entity Central Index Key EntityCentralIndexKey	0001104485
CY2017Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	63251197	shares
CY2016	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2016	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2016Q2	dei	Entity Public Float EntityPublicFloat	208700000	USD
CY2016	dei	Entity Registrant Name EntityRegistrantName	NORTHERN OIL & GAS, INC.
CY2016	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2016	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2016Q4	invest	Derivative Nonmonetary Notional Amount DerivativeNonmonetaryNotionalAmount	3300000	bbl
CY2015Q4	nog	Advances To Operators AdvancesToOperators	1689879	USD
CY2016Q4	nog	Advances To Operators AdvancesToOperators	1577204	USD
CY2014	nog	Amortizationof Deferred Rent AmortizationofDeferredRent	14656	USD
CY2015	nog	Amortizationof Deferred Rent AmortizationofDeferredRent	8548	USD
CY2016	nog	Amortizationof Deferred Rent AmortizationofDeferredRent	1720	USD
CY2016	nog	Anticipated Timing Of Inclusion Of Cost In Amortization Calculation AnticipatedTimingOfInclusionOfCostInAmortizationCalculation	P5Y
CY2015	nog	Asset Retirement Obligation Liabilities Removed Dueto Divestitures AssetRetirementObligationLiabilitiesRemovedDuetoDivestitures	0	USD
CY2016	nog	Asset Retirement Obligation Liabilities Removed Dueto Divestitures AssetRetirementObligationLiabilitiesRemovedDuetoDivestitures	21426	USD
CY2014Q4	nog	Average Acquisition Cost Per Net Acre AverageAcquisitionCostPerNetAcre	1534
CY2015Q4	nog	Average Acquisition Cost Per Net Acre AverageAcquisitionCostPerNetAcre	1314
CY2016Q4	nog	Average Acquisition Cost Per Net Acre AverageAcquisitionCostPerNetAcre	1515
CY2014	nog	Capitalized Asset Retirement Obligations CapitalizedAssetRetirementObligations	952087	USD
CY2015	nog	Capitalized Asset Retirement Obligations CapitalizedAssetRetirementObligations	421394	USD
CY2016	nog	Capitalized Asset Retirement Obligations CapitalizedAssetRetirementObligations	1353307	USD
CY2014	nog	Capitalized Certain Payroll And Other Internal Costs CapitalizedCertainPayrollAndOtherInternalCosts	2153448	USD
CY2015	nog	Capitalized Certain Payroll And Other Internal Costs CapitalizedCertainPayrollAndOtherInternalCosts	2717913	USD
CY2016	nog	Capitalized Certain Payroll And Other Internal Costs CapitalizedCertainPayrollAndOtherInternalCosts	1890480	USD
CY2013Q4	nog	Capitalized Costs Oil And Gas Producing Activities Development Costs CapitalizedCostsOilAndGasProducingActivitiesDevelopmentCosts	0	USD
CY2014Q4	nog	Capitalized Costs Oil And Gas Producing Activities Development Costs CapitalizedCostsOilAndGasProducingActivitiesDevelopmentCosts	0	USD
CY2015Q4	nog	Capitalized Costs Oil And Gas Producing Activities Development Costs CapitalizedCostsOilAndGasProducingActivitiesDevelopmentCosts	0	USD
CY2016Q4	nog	Capitalized Costs Oil And Gas Producing Activities Development Costs CapitalizedCostsOilAndGasProducingActivitiesDevelopmentCosts	0	USD
CY2013Q4	nog	Capitalized Costs Oil And Gas Producing Activities Property Acquisition CapitalizedCostsOilAndGasProducingActivitiesPropertyAcquisition	196845	USD
CY2014Q4	nog	Capitalized Costs Oil And Gas Producing Activities Property Acquisition CapitalizedCostsOilAndGasProducingActivitiesPropertyAcquisition	579536	USD
CY2015Q4	nog	Capitalized Costs Oil And Gas Producing Activities Property Acquisition CapitalizedCostsOilAndGasProducingActivitiesPropertyAcquisition	736514	USD
CY2016Q4	nog	Capitalized Costs Oil And Gas Producing Activities Property Acquisition CapitalizedCostsOilAndGasProducingActivitiesPropertyAcquisition	1110907	USD
CY2014	nog	Capitalized Costs Related To Expired Leases Subject To Depletion CapitalizedCostsRelatedToExpiredLeasesSubjectToDepletion	26300000	USD
CY2015	nog	Capitalized Costs Related To Expired Leases Subject To Depletion CapitalizedCostsRelatedToExpiredLeasesSubjectToDepletion	19000000	USD
CY2016	nog	Capitalized Costs Related To Expired Leases Subject To Depletion CapitalizedCostsRelatedToExpiredLeasesSubjectToDepletion	13400000	USD
CY2014	nog	Cash Received Paid On Derivatives CashReceivedPaidOnDerivatives	-7863104	USD
CY2015	nog	Cash Received Paid On Derivatives CashReceivedPaidOnDerivatives	161098510	USD
CY2016	nog	Cash Received Paid On Derivatives CashReceivedPaidOnDerivatives	61528201	USD
CY2016Q2	nog	Common Stock Shares Authorized Percent Increasein Authorized Shares CommonStockSharesAuthorizedPercentIncreaseinAuthorizedShares	0.5
CY2016	nog	Crude Oil And Natural Gas Properties Discount Rate CrudeOilAndNaturalGasPropertiesDiscountRate	0.10
CY2014	nog	Deferred Rent DeferredRent	0	USD
CY2015	nog	Deferred Rent DeferredRent	0	USD
CY2016	nog	Deferred Rent DeferredRent	82950	USD
CY2015Q4	nog	Deferred Tax Asset Liabilities Net Before Valuation Allowance DeferredTaxAssetLiabilitiesNetBeforeValuationAllowance	232260000	USD
CY2016Q4	nog	Deferred Tax Asset Liabilities Net Before Valuation Allowance DeferredTaxAssetLiabilitiesNetBeforeValuationAllowance	341265900	USD
CY2015Q4	nog	Deferred Tax Assets Liabilities Derivatives DeferredTaxAssetsLiabilitiesDerivatives	-23855000	USD
CY2016Q4	nog	Deferred Tax Assets Liabilities Derivatives DeferredTaxAssetsLiabilitiesDerivatives	4341000	USD
CY2015Q4	nog	Deferred Tax Assets Liabilities Other DeferredTaxAssetsLiabilitiesOther	-178000	USD
CY2016Q4	nog	Deferred Tax Assets Liabilities Other DeferredTaxAssetsLiabilitiesOther	49000	USD
CY2015Q4	nog	Deferred Tax Assets Liabilities Property Plant And Equipment DeferredTaxAssetsLiabilitiesPropertyPlantAndEquipment	55939000	USD
CY2016Q4	nog	Deferred Tax Assets Liabilities Property Plant And Equipment DeferredTaxAssetsLiabilitiesPropertyPlantAndEquipment	107642000	USD
CY2014	nog	Depletion Depreciation Amortization And Accretion DepletionDepreciationAmortizationAndAccretion	172883554	USD
CY2015	nog	Depletion Depreciation Amortization And Accretion DepletionDepreciationAmortizationAndAccretion	137769812	USD
CY2016	nog	Depletion Depreciation Amortization And Accretion DepletionDepreciationAmortizationAndAccretion	61244158	USD
CY2014	nog	Dilutive Securities Effect On Basic Earnings Per Share DilutiveSecuritiesEffectOnBasicEarningsPerShare	-0.01
CY2015	nog	Dilutive Securities Effect On Basic Earnings Per Share DilutiveSecuritiesEffectOnBasicEarningsPerShare	0.00
CY2016	nog	Dilutive Securities Effect On Basic Earnings Per Share DilutiveSecuritiesEffectOnBasicEarningsPerShare	0.00
CY2014	nog	Gas And Oil Acreage Net Acres Acquired GasAndOilAcreageNetAcresAcquired	22668	acre
CY2015	nog	Gas And Oil Acreage Net Acres Acquired GasAndOilAcreageNetAcresAcquired	4355	acre
CY2016	nog	Gas And Oil Acreage Net Acres Acquired GasAndOilAcreageNetAcresAcquired	3399	acre
CY2016Q4	nog	Gas And Oil Acreage Net Mineral Rights GasAndOilAcreageNetMineralRights	155016	acre
CY2014	nog	Impairment Costs Related To Expired Leases Subject To Depletion ImpairmentCostsRelatedToExpiredLeasesSubjectToDepletion	21400000	USD
CY2015	nog	Impairment Costs Related To Expired Leases Subject To Depletion ImpairmentCostsRelatedToExpiredLeasesSubjectToDepletion	37600000	USD
CY2016	nog	Impairment Costs Related To Expired Leases Subject To Depletion ImpairmentCostsRelatedToExpiredLeasesSubjectToDepletion	7000000	USD
CY2014	nog	Income Tax Expense Benefit Valuation Allowance IncomeTaxExpenseBenefitValuationAllowance	0	USD
CY2015	nog	Income Tax Expense Benefit Valuation Allowance IncomeTaxExpenseBenefitValuationAllowance	-232260000	USD
CY2016	nog	Income Tax Expense Benefit Valuation Allowance IncomeTaxExpenseBenefitValuationAllowance	-109005900	USD
CY2014	nog	Maximum Percentage Of Eligible Compensation Matched MaximumPercentageOfEligibleCompensationMatched	0.08
CY2015	nog	Maximum Percentage Of Eligible Compensation Matched MaximumPercentageOfEligibleCompensationMatched	0.08
CY2016	nog	Maximum Percentage Of Eligible Compensation Matched MaximumPercentageOfEligibleCompensationMatched	0.08
CY2016Q4	nog	Number Of Classes Of Shares NumberOfClassesOfShares	2
CY2014	nog	Oil And Natural Gas Properties Included In Accounts Payable OilAndNaturalGasPropertiesIncludedInAccountsPayable	221278750	USD
CY2015	nog	Oil And Natural Gas Properties Included In Accounts Payable OilAndNaturalGasPropertiesIncludedInAccountsPayable	59520415	USD
CY2016	nog	Oil And Natural Gas Properties Included In Accounts Payable OilAndNaturalGasPropertiesIncludedInAccountsPayable	50713195	USD
CY2014	nog	Percentage Entity Matches Of Eligible Employees Contributions PercentageEntityMatchesOfEligibleEmployeesContributions	1
CY2015	nog	Percentage Entity Matches Of Eligible Employees Contributions PercentageEntityMatchesOfEligibleEmployeesContributions	1
CY2016	nog	Percentage Entity Matches Of Eligible Employees Contributions PercentageEntityMatchesOfEligibleEmployeesContributions	1
CY2016	nog	Percentage Of Mineral Rights Developed PercentageOfMineralRightsDeveloped	0.79
CY2016	nog	Percentage Of Proved Reserves Sold To Be Considered Significant Alteration PercentageOfProvedReservesSoldToBeConsideredSignificantAlteration	0.25
CY2016	nog	Period For Advance Payments To Be Applied Against Joint Interest Billings PeriodForAdvancePaymentsToBeAppliedAgainstJointInterestBillings	P90D
CY2014	nog	Proceeds From Sale Of Oil And Gas Property And Equipment Due To Alteration ProceedsFromSaleOfOilAndGasPropertyAndEquipmentDueToAlteration	0	USD
CY2015	nog	Proceeds From Sale Of Oil And Gas Property And Equipment Due To Alteration ProceedsFromSaleOfOilAndGasPropertyAndEquipmentDueToAlteration	0	USD
CY2016	nog	Proceeds From Sale Of Oil And Gas Property And Equipment Due To Alteration ProceedsFromSaleOfOilAndGasPropertyAndEquipmentDueToAlteration	0	USD
CY2014	nog	Standardized Measureof Discounted Future Net Cash Flow Relatingto Proved Oiland Gas Reserves Accretionof Discount StandardizedMeasureofDiscountedFutureNetCashFlowRelatingtoProvedOilandGasReservesAccretionofDiscount	-152128992	USD
CY2015	nog	Standardized Measureof Discounted Future Net Cash Flow Relatingto Proved Oiland Gas Reserves Accretionof Discount StandardizedMeasureofDiscountedFutureNetCashFlowRelatingtoProvedOilandGasReservesAccretionofDiscount	-170222344	USD
CY2016	nog	Standardized Measureof Discounted Future Net Cash Flow Relatingto Proved Oiland Gas Reserves Accretionof Discount StandardizedMeasureofDiscountedFutureNetCashFlowRelatingtoProvedOilandGasReservesAccretionofDiscount	-57569313	USD
CY2016Q4	nog	Stock Shares Authorized StockSharesAuthorized	147500000	shares
CY2014	nog	Total Capitalized Costs Oil And Gas Producing Activities TotalCapitalizedCostsOilAndGasProducingActivities	6562992	USD
CY2015	nog	Total Capitalized Costs Oil And Gas Producing Activities TotalCapitalizedCostsOilAndGasProducingActivities	4224085	USD
CY2016	nog	Total Capitalized Costs Oil And Gas Producing Activities TotalCapitalizedCostsOilAndGasProducingActivities	2246676	USD
CY2015Q4	nog	Unproven Leasehold Interests UnprovenLeaseholdInterests	38003	acre
CY2016Q4	nog	Unproven Leasehold Interests UnprovenLeaseholdInterests	26432	acre
CY2015Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	65319170	USD
CY2016Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	56146847	USD
CY2015Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	51445026	USD
CY2016Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	35840042	USD
CY2015Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	7893975	USD
CY2016Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	6094938	USD
CY2015Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1759281704	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2055987766	USD
CY2015Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	440221018	USD
CY2016Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	443895032	USD
CY2015Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4500000	USD
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4900000	USD
CY2015	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	3500000	USD
CY2016	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	400000	USD
CY2014	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-1486726	USD
CY2015	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-248268	USD
CY2016	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	501324	USD
CY2014	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2776024	USD
CY2015	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3696532	USD
CY2016	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3822967	USD
CY2014	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	15590	shares
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	322393	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	829313	shares
CY2014	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2016	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2014Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	5105762	USD
CY2015Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	5816356	USD
CY2016Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	7508300	USD
CY2015	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	372461	USD
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	63259781	shares
CY2015Q4	us-gaap	Common Stock Value CommonStockValue	63120	USD
CY2015	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-53912	USD
CY2016	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	800000	USD
CY2016	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	405991	USD
CY2015Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	188770	USD
CY2016Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	517423	USD
CY2015	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	475306	USD
CY2016	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	585729	USD
CY2015	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	83261	USD
CY2016	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	67353	USD
CY2015	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-100000	USD
CY2016	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	789003	USD
CY2015Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	5627586	USD
CY2016Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	6990877	USD
CY2015Q4	us-gaap	Assets Assets	721430948	USD
CY2016Q4	us-gaap	Assets Assets	431532961	USD
CY2015Q4	us-gaap	Assets Current AssetsCurrent	122029719	USD
CY2016Q4	us-gaap	Assets Current AssetsCurrent	46894169	USD
CY2015	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	59500000	USD
CY2016	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	50700000	USD
CY2013	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization	196845	USD
CY2014	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization	579536	USD
CY2015	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization	736514	USD
CY2016	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization	1110907	USD
CY2013Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	196845	USD
CY2014Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	579536	USD
CY2015Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	736514	USD
CY2016Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	1110907	USD
CY2015Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	2336757089	USD
CY2016Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	2428595048	USD
CY2015Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	10007529	USD
CY2016Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	2623802	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5687166	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	9337512	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	3390389	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6486098	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	3650346	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-5947123	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	3095709	USD
CY2015Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2015Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	142500000	shares
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	142500000	shares
CY2016Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	95000000	shares
CY2016Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	142500000	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	61858199	shares
CY2014Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	61066712	shares
CY2015Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	63120384	shares
CY2015	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	9068139	USD
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	63260	USD
CY2014	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	29838482	USD
CY2016	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	18531518	USD
CY2014	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	27561901	USD
CY2015	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	3346214	USD
CY2016	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	2301285	USD
CY2014	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	479472251	USD
CY2015	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	116255535	USD
CY2016	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	63621429	USD
CY2014	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	536872634	USD
CY2015	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	128669888	USD
CY2016	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	84454232	USD
CY2014	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3259445	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-73649	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-1402179	USD
CY2015Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	847804829	USD
CY2016Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	842306153	USD
CY2016Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	1700000	USD
CY2015Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	12514500	USD
CY2016Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	9681028	USD
CY2014	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	87625430	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-398002555	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-99298900	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	96107555	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-202350555	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2014	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	8482125	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-36608000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-9707000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	0	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	0	USD
CY2015Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	0	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	0	USD
CY2015Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	195207000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	224679900	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	1400000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1762000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1032000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1723000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1727000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	1662000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	1795000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2015Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	232260000	USD
CY2014	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	269000	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	279000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	238000	USD
CY2014	us-gaap	Depreciation And Amortization DepreciationAndAmortization	300000	USD
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	300000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	200000	USD
CY2015Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	64611558	USD
CY2016Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	4517	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	341300000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	341265900	USD
CY2015Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.84
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-16.08
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.08
CY2015Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2016Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	16445	USD
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.78
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-4.80
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	64611558	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	20962	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	64611558	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	4517	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	0	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	11756338	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	0	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	11739893	USD
CY2014	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	163412615	USD
CY2015Q1	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	25663283	USD
CY2015Q2	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-22211048	USD
CY2015Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	51366762	USD
CY2015Q4	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	17563910	USD
CY2015	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	72382907	USD
CY2016Q1	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	3463883	USD
CY2016Q2	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-10522948	USD
CY2016Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	3381564	USD
CY2016Q4	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-11141233	USD
CY2016	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-14818734	USD
CY2015Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	0	USD
CY2016Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	10001564	USD
CY2015Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	0	USD
CY2016Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	1738329	USD
CY2015Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2016Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	16445	USD
CY2016Q4	us-gaap	Derivative Swap Type Average Fixed Price DerivativeSwapTypeAverageFixedPrice	53.00
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.70
CY2015Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.79
CY2015Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-4.12
CY2015Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-5.33
CY2015Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.84
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-16.08
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.08
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.78
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.74
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.20
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-4.80
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.69
CY2015Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.79
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-4.12
CY2015Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-5.33
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.74
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.20
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-294895887	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	263112945	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1177778745	USD
CY2014	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	660615	USD
CY2015	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1330693	USD
CY2016	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	971313	USD
CY2014	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	567026734	USD
CY2015	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	96770078	USD
CY2016	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	59542911	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	7912622500	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	2470707712	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	1708870912	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	1453562125	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	356401888	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	220869664	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	1058511086	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	5740623	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	2477353	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	3119229289	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	1127309105	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	709989063	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	2281320000	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	981256096	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	775534832	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	1713849746	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	552510342	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	330963050	USD
CY2014	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2015	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	61787	USD
CY2016	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-30356	USD
CY2014	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	17602306	USD
CY2015	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	19042004	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	14757641	USD
CY2014	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2014	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2015Q1	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	360428962	USD
CY2015Q2	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	281964097	USD
CY2015Q3	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	354422654	USD
CY2015Q4	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	167143533	USD
CY2015	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	1163959246	USD
CY2016Q1	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	104311122	USD
CY2016Q2	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	88880921	USD
CY2016Q3	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	43820791	USD
CY2016Q4	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2016	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	237012834	USD
CY2015Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0	USD
CY2016Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0	USD
CY2014	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0	USD
CY2015	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0	USD
CY2016	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	99367000	USD
CY2015Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-135480000	USD
CY2015Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-66866610	USD
CY2015Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-77544	USD
CY2015Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-50	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-202424204	USD
CY2016Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2016Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2016Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2016Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1402179	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1402179	USD
CY2014	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2015	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	232260000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	109005900	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	92090000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-412223000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-103214000	USD
CY2014	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	456000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	470000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	82000	USD
CY2014	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	1472000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	307000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-834900	USD
CY2014	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-55300	USD
CY2015	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	586796	USD
CY2016	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-135179	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5404300	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-23825000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-6306000	USD
CY2014	us-gaap	Income Taxes Paid IncomeTaxesPaid	0	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	3258160	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	0	USD
CY2015Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	0	USD
CY2016Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	1402179	USD
CY2014	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	4094145	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-4545304	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-365103	USD
CY2014	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-885262	USD
CY2015	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-27701606	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-15604984	USD
CY2014	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	4014052	USD
CY2016	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	57481060	USD
CY2014	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-79196	USD
CY2015	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	210295	USD
CY2016	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-1556673	USD
CY2014	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-64185447	USD
CY2015	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	235578690	USD
CY2015	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	295949531	USD
CY2016	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	497950	USD
CY2014	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	0	USD
CY2015	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	0	USD
CY2016	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	1402179	USD
CY2014	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-106680	USD
CY2015	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	590630	USD
CY2016	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-90593	USD
CY2014	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	124348	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-2220	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	691261	USD
CY2014	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	0	USD
CY2015	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	0	USD
CY2016	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	9576760	USD
CY2014	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	169068	shares
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2014	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	4409544	USD
CY2015	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1506172	USD
CY2016	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	356196	USD
CY2014	us-gaap	Interest Expense InterestExpense	42105676	USD
CY2015	us-gaap	Interest Expense InterestExpense	58360387	USD
CY2016	us-gaap	Interest Expense InterestExpense	64485623	USD
CY2014	us-gaap	Interest Paid InterestPaid	44913994	USD
CY2015	us-gaap	Interest Paid InterestPaid	55209662	USD
CY2016	us-gaap	Interest Paid InterestPaid	60480783	USD
CY2015Q4	us-gaap	Interest Payable Current InterestPayableCurrent	4713232	USD
CY2016Q4	us-gaap	Interest Payable Current InterestPayableCurrent	4682894	USD
CY2015Q4	us-gaap	Liabilities Liabilities	919033062	USD
CY2016Q4	us-gaap	Liabilities Liabilities	918954629	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	721430948	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	431532961	USD
CY2015Q4	us-gaap	Liabilities Current LiabilitiesCurrent	78115147	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	77443666	USD
CY2015Q4	us-gaap	Long Term Debt LongTermDebt	835290329	USD
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	832600000	USD
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	832625125	USD
CY2015Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	835290329	USD
CY2016Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	832625125	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	206432650	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	35972826	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-7831775	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-477039845	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-288935667	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-90964087	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	274257541	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	247015718	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	101891571	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	163745945	USD
CY2015Q1	us-gaap	Net Income Loss NetIncomeLoss	-229738572	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	-250060617	USD
CY2015Q3	us-gaap	Net Income Loss NetIncomeLoss	-323242032	USD
CY2015Q4	us-gaap	Net Income Loss NetIncomeLoss	-172313320	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-975354541	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	-126565754	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	-108978662	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	-45618895	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	-12330397	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	-293493708	USD
CY2014	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	163745945	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-975354541	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-293493708	USD
CY2014	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-52577882	USD
CY2015	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-1384474928	USD
CY2016	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-174656448	USD
CY2014	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-42058312	USD
CY2015	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-58390478	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-65591032	USD
CY2014	us-gaap	Oil And Gas Production Expense OilAndGasProductionExpense	55695615	USD
CY2015	us-gaap	Oil And Gas Production Expense OilAndGasProductionExpense	52107984	USD
CY2016	us-gaap	Oil And Gas Production Expense OilAndGasProductionExpense	45680110	USD
CY2014	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	431605015	USD
CY2015	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	202638640	USD
CY2016	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	159690883	USD
CY2014	us-gaap	Operating Expenses OperatingExpenses	289855485	USD
CY2015Q1	us-gaap	Operating Expenses OperatingExpenses	429607005	USD
CY2015Q2	us-gaap	Operating Expenses OperatingExpenses	343402927	USD
CY2015Q3	us-gaap	Operating Expenses OperatingExpenses	408323554	USD
CY2015Q4	us-gaap	Operating Expenses OperatingExpenses	213112194	USD
CY2015	us-gaap	Operating Expenses OperatingExpenses	1394445680	USD
CY2016Q1	us-gaap	Operating Expenses OperatingExpenses	141220772	USD
CY2016Q2	us-gaap	Operating Expenses OperatingExpenses	124946744	USD
CY2016Q3	us-gaap	Operating Expenses OperatingExpenses	74583046	USD
CY2016Q4	us-gaap	Operating Expenses OperatingExpenses	33457789	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	374208351	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	305171257	USD
CY2015Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-353482367	USD
CY2015Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-302539733	USD
CY2015Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-307167002	USD
CY2015Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-156199165	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	342000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	-1119388267	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-109384536	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-92932518	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-29473638	USD
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	2485837	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	-229304855	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	1777000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	382000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	340000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	361000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	352000	USD
CY2014	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	267000	USD
CY2015	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	287000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	320000	USD
CY2015Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	10080846	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	8430359	USD
CY2015Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	0	USD
CY2016Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	156632	USD
CY2014	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	0	USD
CY2015	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1704662	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-292753	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	47364	USD
CY2015Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-11736205	USD
CY2015Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-14387494	USD
CY2015Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-16152574	USD
CY2015Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-16114205	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-30091	USD
CY2016Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-17181218	USD
CY2016Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-16046144	USD
CY2016Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-16145257	USD
CY2016Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-16218413	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-15902	USD
CY2014	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	9112	USD
CY2015	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	35866	USD
CY2016	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	31347	USD
CY2014	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	16132414	USD
CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	339578	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1403260	USD
CY2014	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	434936	USD
CY2015	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5687596	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	428515	USD
CY2014	us-gaap	Payments To Acquire Oil And Gas Property And Equipment PaymentsToAcquireOilAndGasPropertyAndEquipment	476870842	USD
CY2015	us-gaap	Payments To Acquire Oil And Gas Property And Equipment PaymentsToAcquireOilAndGasPropertyAndEquipment	289055440	USD
CY2016	us-gaap	Payments To Acquire Oil And Gas Property And Equipment PaymentsToAcquireOilAndGasPropertyAndEquipment	92935905	USD
CY2014	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	169003	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	90751	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	214685	USD
CY2016Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	1584129	USD
CY2015Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2016Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2015Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2016Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2015Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2016Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2015Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2016Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2015Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	892867	USD
CY2014	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	205125299	USD
CY2015	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	114208095	USD
CY2016	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	23271960	USD
CY2014	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	253000000	USD
CY2015	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	150000000	USD
CY2016	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	63000000	USD
CY2014	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	0	USD
CY2015	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	138524	USD
CY2016	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	2172003	USD
CY2014	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2015	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	72000	USD
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	14500	USD
CY2014	us-gaap	Proceeds From Unsecured Notes Payable ProceedsFromUnsecuredNotesPayable	0	USD
CY2015	us-gaap	Proceeds From Unsecured Notes Payable ProceedsFromUnsecuredNotesPayable	190000000	USD
CY2016	us-gaap	Proceeds From Unsecured Notes Payable ProceedsFromUnsecuredNotesPayable	0	USD
CY2014	us-gaap	Production Tax Expense ProductionTaxExpense	43674010	USD
CY2015	us-gaap	Production Tax Expense ProductionTaxExpense	21566634	USD
CY2016	us-gaap	Production Tax Expense ProductionTaxExpense	15513608	USD
CY2015Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2348602087	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2432196199	USD
CY2015Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	589320383	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	376208433	USD
CY2015Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	1837469	USD
CY2016Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	977349	USD
CY2014	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1400000	USD
CY2015	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	6200000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	800000	USD
CY2014	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	30000000	USD
CY2015	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	298000000	USD
CY2016	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	69000000	USD
CY2014	us-gaap	Restricted Stock Value Shares Issued Net Of Tax Withholdings RestrictedStockValueSharesIssuedNetOfTaxWithholdings	587000	USD
CY2015	us-gaap	Restricted Stock Value Shares Issued Net Of Tax Withholdings RestrictedStockValueSharesIssuedNetOfTaxWithholdings	277000	USD
CY2016	us-gaap	Restricted Stock Value Shares Issued Net Of Tax Withholdings RestrictedStockValueSharesIssuedNetOfTaxWithholdings	1400000	USD
CY2016	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2015Q4	us-gaap	Restructuring Reserve RestructuringReserve	32493	USD
CY2016Q4	us-gaap	Restructuring Reserve RestructuringReserve	0	USD
CY2016	us-gaap	Restructuring Reserve Accrual Adjustment RestructuringReserveAccrualAdjustment	0	USD
CY2016	us-gaap	Restructuring Reserve Settled Without Cash1 RestructuringReserveSettledWithoutCash1	32493	USD
CY2014	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	172883554	USD
CY2015	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	137769812	USD
CY2016	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	61244158	USD
CY2015Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-637886252	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-931379960	USD
CY2014	us-gaap	Revenues Revenues	595026742	USD
CY2015Q1	us-gaap	Revenues Revenues	76124638	USD
CY2015Q2	us-gaap	Revenues Revenues	40863194	USD
CY2015Q3	us-gaap	Revenues Revenues	101156552	USD
CY2015Q4	us-gaap	Revenues Revenues	56913029	USD
CY2015	us-gaap	Revenues Revenues	275057413	USD
CY2016Q1	us-gaap	Revenues Revenues	31836236	USD
CY2016Q2	us-gaap	Revenues Revenues	32014226	USD
CY2016Q3	us-gaap	Revenues Revenues	45109408	USD
CY2016Q4	us-gaap	Revenues Revenues	35943626	USD
CY2016	us-gaap	Revenues Revenues	144903496	USD
CY2014	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-326674460	USD
CY2015	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-363975445	USD
CY2016	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-130664183	USD
CY2014	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	330395323	USD
CY2015	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	128964023	USD
CY2016	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	98497165	USD
CY2014	us-gaap	Share Based Compensation ShareBasedCompensation	2759133	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	5234115	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	3464040	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
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CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
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CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	250000	shares
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CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	141872	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	391872	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	5.18
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CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0.00
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CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	2.79
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y9M18D
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y9M18D
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y9M18D
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y10M24D
CY2014	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	43835	shares
CY2015	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	57929	shares
CY2016	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	375875	shares
CY2014	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	30644000	USD
CY2015	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	134104878	USD
CY2016	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	105092	USD
CY2013Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1224366826	USD
CY2014Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1405379543	USD
CY2015Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	574798763	USD
CY2016Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	379026013	USD
CY2014	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	3419342	USD
CY2015	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	7228252	USD
CY2016	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	7231175	USD
CY2014	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	42443	shares
CY2015	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	-1397	shares
CY2016	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	-1594542	shares
CY2014	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	299416	shares
CY2015	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	2112998	shares
CY2016	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	2109814	shares
CY2014	us-gaap	Stock Issued During Period Shares Share Based Compensation Forfeited StockIssuedDuringPeriodSharesShareBasedCompensationForfeited	79461	shares
CY2015	us-gaap	Stock Issued During Period Shares Share Based Compensation Forfeited StockIssuedDuringPeriodSharesShareBasedCompensationForfeited	57929	shares
CY2016	us-gaap	Stock Issued During Period Shares Share Based Compensation Forfeited StockIssuedDuringPeriodSharesShareBasedCompensationForfeited	375875	shares
CY2014	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	100000	shares
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2014	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-585823	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-1401149	USD
CY2016	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	2155872	USD
CY2011Q2	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	150000000	USD
CY2014	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	1153885	shares
CY2015	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	0	shares
CY2016	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	0	shares
CY2014	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	15546184	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	-197602114	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	-487421668	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	619828361	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	770861641	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-197602114	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-487421668	USD
CY2015	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	15500000	USD
CY2014	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	171275719	USD
CY2015	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-88715603	USD
CY2016	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-76346935	USD
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	60860769	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	60652447	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	61173547	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	60691701	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	60652447	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	61173547	shares
CY2014	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	0	USD
CY2015	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	0	USD
CY2016	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	1089507	USD
CY2016	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	1100000	USD
CY2016	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Concentrations of Market and Credit Risk</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The future results of the Company’s crude oil and natural gas operations will be affected by the market prices of crude oil and natural gas.  The availability of a ready market for crude 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 crude oil and natural gas pipelines and other transportation facilities, any oversupply or undersupply of crude 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.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company operates in the exploration, development and production sector of the crude oil and natural gas industry.  The Company’s receivables include amounts due from purchasers of its crude oil and natural gas production.  While certain of these customers are affected by periodic downturns in the economy in general or in their specific segment of the crude oil or natural gas industry, 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’s results of operations over the long-term.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;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 counterparties is generally high. In the normal course of business, letters of credit or parent guarantees may be required for counterparties which management perceives to have a higher credit risk.</font></div></div>
CY2016	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ORGANIZATION AND NATURE OF BUSINESS</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Northern Oil and Gas, Inc. (the “Company,” “Northern,” “our” and words of similar import), a Minnesota corporation, is an independent energy company engaged in the acquisition, exploration, exploitation, development and production of crude oil and natural gas properties.  The Company’s common stock trades on the NYSE MKT market under the symbol “NOG”.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Northern’s principal business is crude oil and natural gas exploration, development, and production with operations in North Dakota and Montana that primarily target the Bakken and Three Forks formations in the Williston Basin of the United States.  The Company acquires leasehold interests that comprise of non-operated working interests in wells and in drilling projects within its area of operations.  As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2016</font><font style="font-family:inherit;font-size:10pt;">, approximately </font><font style="font-family:inherit;font-size:10pt;">79%</font><font style="font-family:inherit;font-size:10pt;"> of Northern’s </font><font style="font-family:inherit;font-size:10pt;">155,016</font><font style="font-family:inherit;font-size:10pt;"> total net acres were developed.</font></div></div>
CY2016	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:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Reclassifications</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;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain prior period balances in the balance sheets have been reclassified to conform to the current year presentation. Such reclassifications had no impact on net loss, cash flows or stockholders’ deficit previously reported.</font></div></div>
CY2016	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Use of Estimates</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements under GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  The most significant estimates relate to proved crude oil and natural gas reserve volumes, future development costs, estimates relating to certain crude oil and natural gas revenues and expenses, fair value of derivative instruments, impairment of oil and natural gas properties, and deferred income taxes.  Actual results may differ from those estimates.</font></div></div>

Files In Submission

Name	View Source	Status
0001104485-17-000014-index-headers.html	Edgar Link	pending
0001104485-17-000014-index.html	Edgar Link	pending
0001104485-17-000014.txt	Edgar Link	pending
0001104485-17-000014-xbrl.zip	Edgar Link	pending
exhibit12-201610k.htm	Edgar Link	pending
exhibit231-201610k.htm	Edgar Link	pending
exhibit232-201610k.htm	Edgar Link	pending
exhibit233-201610k.htm	Edgar Link	pending
exhibit311-201610k.htm	Edgar Link	pending
exhibit321-201610k.htm	Edgar Link	pending
exhibit991-201610k.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
nog-20161231.xml	Edgar Link	completed
nog-20161231.xsd	Edgar Link	pending
nog-20161231x10k.htm	Edgar Link	pending
nog-20161231_cal.xml	Edgar Link	unprocessable
nog-20161231_def.xml	Edgar Link	unprocessable
nog-20161231_lab.xml	Edgar Link	unprocessable
nog-20161231_pre.xml	Edgar Link	unprocessable
nog-2016123_chartx21508.jpg	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$NOG
NORTHERN OIL & GAS, INC. Stock $nog

2016 Form 10-K Financial Statement

#000110448517000014 Filed on March 02, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NOG NORTHERN OIL & GAS, INC. Stock $nog

2016 Form 10-K Financial Statement

#000110448517000014 Filed on March 02, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NOG
NORTHERN OIL & GAS, INC. Stock $nog