$EPM
EVOLUTION PETROLEUM CORP Stock $epm

$epm Overview Financials Valuation SEC Filings Company Website

2017 Form 10-K Financial Statement

#000100665517000036 Filed on September 15, 2017

Income Statement

Concept	2017	2016 Q2	2016 Q1
Revenue	$34.48M	$7.240M	$5.107M
YoY Change	30.87%	-20.12%	-27.71%
Cost Of Revenue	$10.84M	$2.030M	$2.200M
YoY Change	18.64%	-28.77%	-31.25%
Gross Profit	$23.65M	$5.210M	$2.900M
YoY Change	37.36%	-16.1%	-24.87%
Gross Profit Margin	68.58%	71.96%	56.79%
Selling, General & Admin	$4.985M	$3.030M	$2.300M
YoY Change	-45.09%	80.36%	56.46%
% of Gross Profit	21.08%	58.16%	79.31%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$5.719M	$1.220M	$1.269M
YoY Change	10.73%	1.67%	11.44%
% of Gross Profit	24.18%	23.42%	43.75%
Operating Expenses	$21.60M	$4.260M	$5.788M
YoY Change	-12.48%	47.92%	-0.53%
Operating Profit	$12.88M	$954.8K	-$681.1K
YoY Change	673.49%	-71.37%	-154.67%
Interest Expense	$81.76K	-$660.0K	$14.04K
YoY Change	15.24%	450.0%	-43.0%
% of Operating Profit	0.63%	-69.12%
Other Income/Expense, Net	$0.00	$28.10M
YoY Change	-100.0%
Pretax Income	$12.88M	$28.39M	-$201.9K
YoY Change	-62.36%	784.42%	-116.43%
Income Tax	$4.841M	$7.520M	-$72.34K
% Of Pretax Income	37.57%	26.49%
Net Earnings	$8.044M	$20.87M	-$129.6K
YoY Change	-67.38%	1004.23%	-117.64%
Net Earnings / Revenue	23.33%	288.24%	-2.54%
Basic Earnings Per Share	$0.21	$0.63	-$0.01
Diluted Earnings Per Share	$0.21	$0.63	-$0.01
COMMON SHARES
Basic Shares Outstanding	33.03M shares	32.91M shares	32.88M shares
Diluted Shares Outstanding	33.11M shares		32.88M shares

Balance Sheet

Concept	2017	2016 Q2	2016 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$23.03M	$34.08M	$14.01M
YoY Change	-32.42%	69.38%	-31.29%
Cash & Equivalents	$23.03M	$34.08M	$14.01M
Short-Term Investments
Other Short-Term Assets	$387.7K	$370.0K	$250.0K
YoY Change	4.44%	-13.95%	-34.21%
Inventory
Prepaid Expenses
Receivables	$2.723M	$2.638M	$1.931M
Other Receivables	$3.820K	$595.00	$13.47K
Total Short-Term Assets	$26.14M	$37.09M	$16.76M
YoY Change	-29.51%	56.53%	-29.83%
LONG-TERM ASSETS
Property, Plant & Equipment	$61.83M	$60.00M	$53.68M
YoY Change	3.05%	31.97%	32.02%
Goodwill
YoY Change
Intangibles		$0.00	$0.00
YoY Change		-100.0%	-100.0%
Long-Term Investments	$108.8K	$110.0K	$110.0K
YoY Change	0.0%
Other Assets	$98.47K	$365.5K	$20.00K
YoY Change	-36.48%	-49.66%	-88.24%
Total Long-Term Assets	$62.13M	$60.36M	$53.91M
YoY Change	2.92%	30.69%	30.47%
TOTAL ASSETS
Total Short-Term Assets	$26.14M	$37.09M	$16.76M
Total Long-Term Assets	$62.13M	$60.36M	$53.91M
Total Assets	$88.27M	$97.45M	$70.67M
YoY Change	-9.42%	39.45%	8.38%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.994M	$5.809M	$7.465M
YoY Change	-65.67%	-28.93%	63.85%
Accrued Expenses	$580.9K	$2.098M	$1.226M
YoY Change	-78.64%	145.27%	55.22%
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	$2.719M	$8.529M	$8.846M
YoY Change	-68.12%	-8.58%	61.95%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$1.254M	$760.0K	$700.0K
YoY Change	64.89%	4.11%	-9.09%
Total Long-Term Liabilities	$1.254M	$760.0K	$700.0K
YoY Change	64.89%	4.11%	-9.09%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.719M	$8.529M	$8.846M
Total Long-Term Liabilities	$1.254M	$760.0K	$700.0K
Total Liabilities	$19.80M	$21.13M	$20.39M
YoY Change	-6.3%	-0.83%	19.44%
SHAREHOLDERS EQUITY
Retained Earnings		$29.12M	$10.04M
YoY Change		148.94%	-13.54%
Common Stock		$32.91K	$32.89K
YoY Change		0.19%	-0.05%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$68.47M	$76.32M	$50.29M
YoY Change
Total Liabilities & Shareholders Equity	$88.27M	$97.45M	$70.67M
YoY Change	-9.42%	39.45%	8.38%

Cashflow Statement

Concept	2017	2016 Q2	2016 Q1
OPERATING ACTIVITIES
Net Income	$8.044M	$20.87M	-$129.6K
YoY Change	-67.38%	1004.23%	-117.64%
Depreciation, Depletion And Amortization	$5.719M	$1.220M	$1.269M
YoY Change	10.73%	1.67%	11.44%
Cash From Operating Activities	$16.49M	$24.88M	$1.260M
YoY Change	-46.2%	561.7%	-36.36%
INVESTING ACTIVITIES
Capital Expenditures	-$10.19M	-$8.910M	-$3.540M
YoY Change	-51.71%	263.67%	45.08%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$120.0K	$1.950M
YoY Change	-100.0%	-340.0%	-2266.67%
Cash From Investing Activities	-$10.46M	-$8.790M	-$1.590M
YoY Change	-40.65%	253.01%	-37.4%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$459.9K
YoY Change	-66.12%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$17.08M	3.980M	-1.990M
YoY Change	-1925.54%	-358.44%	26.75%
NET CHANGE
Cash From Operating Activities	$16.49M	24.88M	1.260M
Cash From Investing Activities	-$10.46M	-8.790M	-1.590M
Cash From Financing Activities	-$17.08M	3.980M	-1.990M
Net Change In Cash	-$11.05M	20.07M	-2.320M
YoY Change	-179.16%	-7533.33%	8.92%
FREE CASH FLOW
Cash From Operating Activities	$16.49M	$24.88M	$1.260M
Capital Expenditures	-$10.19M	-$8.910M	-$3.540M
Free Cash Flow	$26.68M	$33.79M	$4.800M
YoY Change	-48.45%	444.12%	8.6%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-06-30
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0001006655
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--06-30
CY2017Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	32905982	shares
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2016Q4	dei	Entity Public Float EntityPublicFloat	250722260	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	EVOLUTION PETROLEUM CORP
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2016Q2	epm	Accumulated Amortization Royalty Rights AccumulatedAmortizationRoyaltyRights	6782	USD
CY2017Q2	epm	Accumulated Amortization Royalty Rights AccumulatedAmortizationRoyaltyRights	20346	USD
CY2015	epm	Antidilutive Securities Excluded From Computation Of Earnings Per Share Weighted Average Exercise Price AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareWeightedAverageExercisePrice	1.55
CY2016	epm	Antidilutive Securities Excluded From Computation Of Earnings Per Share Weighted Average Exercise Price AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareWeightedAverageExercisePrice	0.61
CY2015	epm	Asset Retirement Obligation Liabilities Incurred Net AssetRetirementObligationLiabilitiesIncurredNet	576039	USD
CY2016	epm	Asset Retirement Obligation Liabilities Incurred Net AssetRetirementObligationLiabilitiesIncurredNet	140151	USD
CY2017	epm	Asset Retirement Obligation Liabilities Incurred Net AssetRetirementObligationLiabilitiesIncurredNet	471864	USD
CY2016	epm	Asset Retirement Obligation Liabilities Sold AssetRetirementObligationLiabilitiesSold	0	USD
CY2017	epm	Asset Retirement Obligation Liabilities Sold AssetRetirementObligationLiabilitiesSold	47817	USD
CY2015	epm	Costs Incurred Acquisition Of Oil And Gas Properties Including Exploration And Development Cost CostsIncurredAcquisitionOfOilAndGasPropertiesIncludingExplorationAndDevelopmentCost	10975637	USD
CY2016	epm	Costs Incurred Acquisition Of Oil And Gas Properties Including Exploration And Development Cost CostsIncurredAcquisitionOfOilAndGasPropertiesIncludingExplorationAndDevelopmentCost	19689700	USD
CY2017	epm	Costs Incurred Acquisition Of Oil And Gas Properties Including Exploration And Development Cost CostsIncurredAcquisitionOfOilAndGasPropertiesIncludingExplorationAndDevelopmentCost	7554579	USD
CY2015	epm	Deferred Loan Costs Reclassifiedto Oiland Gas Property Cost DeferredLoanCostsReclassifiedtoOilandGasPropertyCost	0	USD
CY2016	epm	Deferred Loan Costs Reclassifiedto Oiland Gas Property Cost DeferredLoanCostsReclassifiedtoOilandGasPropertyCost	107196	USD
CY2017	epm	Deferred Loan Costs Reclassifiedto Oiland Gas Property Cost DeferredLoanCostsReclassifiedtoOilandGasPropertyCost	0	USD
CY2015	epm	Deferred Rent DeferredRent	17145	USD
CY2016	epm	Deferred Rent DeferredRent	0	USD
CY2017	epm	Deferred Rent DeferredRent	0	USD
CY2015Q2	epm	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax Net DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTaxNet	701254	USD
CY2016Q2	epm	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax Net DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTaxNet	0	USD
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CY2017	epm	Derivative Gainon Settled Derivatives DerivativeGainonSettledDerivatives	43890	USD
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CY2016	epm	Derivative Net Gainon Unsettled Derivatives DerivativeNetGainonUnsettledDerivatives	124106	USD
CY2017	epm	Derivative Net Gainon Unsettled Derivatives DerivativeNetGainonUnsettledDerivatives	-14132	USD
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CY2017	epm	Gain Losson Settled Derivative Instruments Net Pretax GainLossonSettledDerivativeInstrumentsNetPretax	43890	USD
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CY2017	epm	Gain Losson Unsettled Derivative Instruments Net Pretax GainLossonUnsettledDerivativeInstrumentsNetPretax	-14132	USD
CY2016	epm	Increase Decreasein Accounts Payable Usedto Acquire Propertyand Equipment IncreaseDecreaseinAccountsPayableUsedtoAcquirePropertyandEquipment	-2250048	USD
CY2017	epm	Increase Decreasein Accounts Payable Usedto Acquire Propertyand Equipment IncreaseDecreaseinAccountsPayableUsedtoAcquirePropertyandEquipment	-3076245	USD
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CY2015	epm	Investment Income Interestand Other InvestmentIncomeInterestandOther	35991	USD
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CY2017	epm	Investment Income Interestand Other InvestmentIncomeInterestandOther	56855	USD
CY2015	epm	Non Cash Transaction Accrued Purchasesof Treasury Stock NonCashTransactionAccruedPurchasesofTreasuryStock	170283	USD
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CY2015	epm	Noncash Gain Losson Litigation Settlement Fair Value NoncashGainLossonLitigationSettlementFairValue	0	USD
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CY2015	epm	Noncash Settlement Relatedto Tax Withholdingfor Sharebased Compensation NoncashSettlementRelatedtoTaxWithholdingforSharebasedCompensation	0	USD
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CY2017	epm	Noncash Settlement Relatedto Tax Withholdingfor Sharebased Compensation NoncashSettlementRelatedtoTaxWithholdingforSharebasedCompensation	77156	USD
CY2017	epm	Number Of Increases To Quarterly Cash Dividend NumberOfIncreasesToQuarterlyCashDividend	2	increase
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CY2017	epm	Payment For Development Of Oil And Gas Properties PaymentForDevelopmentOfOilAndGasProperties	10158960	USD
CY2015	epm	Payments For Purchase Of Treasury Stock Cost Method PaymentsForPurchaseOfTreasuryStockCostMethod	333841	USD
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CY2017	epm	Period Considered For Determining Unweighted Arithmetic Average Of First Day Of Month Commodity Prices PeriodConsideredForDeterminingUnweightedArithmeticAverageOfFirstDayOfMonthCommodityPrices	P12M
CY2017	epm	Period Considered For Unweighted Arithmetic Average For Determining Reserve Volumes And Values PeriodConsideredForUnweightedArithmeticAverageForDeterminingReserveVolumesAndValues	P12M
CY2015	epm	Proved Developed And Undeveloped Reserves Energy Equivalents Improved Recovery Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesEnergyEquivalentsImprovedRecoveryExtensionsDiscoveriesAndAdditions	0	Boe
CY2016	epm	Proved Developed And Undeveloped Reserves Energy Equivalents Improved Recovery Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesEnergyEquivalentsImprovedRecoveryExtensionsDiscoveriesAndAdditions	0	Boe
CY2017	epm	Proved Developed And Undeveloped Reserves Energy Equivalents Improved Recovery Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesEnergyEquivalentsImprovedRecoveryExtensionsDiscoveriesAndAdditions	0	Boe
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CY2017Q2	epm	Royalty Rights RoyaltyRights	108512	USD
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CY2016Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.10
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CY2015Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.05
CY2015Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.05
CY2016Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.05
CY2016Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.05
CY2016Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.05
CY2016Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.065
CY2017Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.07
CY2017Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.07
CY2016Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2017Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2016Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2017Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2016Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	32907863	shares
CY2017Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	33087308	shares
CY2016Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	32907863	shares
CY2017Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	33087308	shares
CY2016Q2	us-gaap	Common Stock Value CommonStockValue	32907	USD
CY2017Q2	us-gaap	Common Stock Value CommonStockValue	33087	USD
CY2016Q2	us-gaap	Cost Method Investments CostMethodInvestments	108750	USD
CY2017Q2	us-gaap	Cost Method Investments CostMethodInvestments	108750	USD
CY2015	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	0	USD
CY2016	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	0	USD
CY2017	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	0	USD
CY2015	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	0	USD
CY2016	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	596500	USD
CY2017	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	0	USD
CY2015	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	10975637	USD
CY2016	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	19093200	USD
CY2017	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	7554579	USD
CY2015	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	0	USD
CY2016	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	0	USD
CY2017	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	0	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1413296	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	8731290	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	168152	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2021732	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	8995544	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	749745	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	608436	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	264254	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	581593	USD
CY2015	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	0	USD
CY2016	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	0	USD
CY2017	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	0	USD
CY2016Q2	us-gaap	Deferred Costs And Other Assets DeferredCostsAndOtherAssets	365489	USD
CY2017Q2	us-gaap	Deferred Costs And Other Assets DeferredCostsAndOtherAssets	295384	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1282059	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	541891	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	3880522	USD
CY2016Q2	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	168972	USD
CY2017Q2	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	168972	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1422489	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	575235	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4090919	USD
CY2015Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	12233993	USD
CY2016Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	12513863	USD
CY2017Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	16882626	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	140430	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	33344	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	210397	USD
CY2015Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1366302	USD
CY2016Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1070937	USD
CY2017Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1348781	USD
CY2015Q2	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	82414	USD
CY2016Q2	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	105321	USD
CY2017Q2	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	0	USD
CY2015Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1073856	USD
CY2016Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	778491	USD
CY2017Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1056335	USD
CY2015Q2	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	400288	USD
CY2016Q2	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	386808	USD
CY2017Q2	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	852477	USD
CY2015Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	91113	USD
CY2016Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	130947	USD
CY2017Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	18581	USD
CY2015Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	173647	USD
CY2016Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	553182	USD
CY2017Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	367159	USD
CY2015Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	292446	USD
CY2016Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	292446	USD
CY2017Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	292446	USD
CY2015Q2	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	11160137	USD
CY2016Q2	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	11735372	USD
CY2017Q2	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	15826291	USD
CY2015Q2	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	11242551	USD
CY2016Q2	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	11840693	USD
CY2017Q2	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	15826291	USD
CY2015Q2	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12233993	USD
CY2016Q2	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12513863	USD
CY2017Q2	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	16882626	USD
CY2015	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	85676	USD
CY2016	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	88348	USD
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	53113	USD
CY2017	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2017	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	1.00
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	3615737	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5165120	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5719405	USD
CY2016Q2	us-gaap	Derivative Assets DerivativeAssets	14132	USD
CY2017Q2	us-gaap	Derivative Assets DerivativeAssets	0	USD
CY2016Q2	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	14132	USD
CY2017Q2	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	0	USD
CY2016	us-gaap	Derivative Gain On Derivative DerivativeGainOnDerivative	3439229	USD
CY2017	us-gaap	Derivative Gain On Derivative DerivativeGainOnDerivative	29758	USD
CY2015	us-gaap	Dividends Common Stock DividendsCommonStock	9833642	USD
CY2016	us-gaap	Dividends Common Stock DividendsCommonStock	6565823	USD
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	8432435	USD
CY2015	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	9833642	USD
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	6565823	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8432435	USD
CY2015	us-gaap	Dividends Preferred Stock DividendsPreferredStock	674302	USD
CY2016	us-gaap	Dividends Preferred Stock DividendsPreferredStock	674302	USD
CY2017	us-gaap	Dividends Preferred Stock DividendsPreferredStock	250990	USD
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.13
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.21
CY2015Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.09
CY2015Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.02
CY2016Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.01
CY2016Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.63
CY2016Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.02
CY2016Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.07
CY2017Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.07
CY2017Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.05
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.13
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.21
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.409
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.279
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.376
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.340
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.340
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.340
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	0.000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	-0.066
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	-0.007
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.002
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.000
CY2015	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.071
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.006
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.041
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1633946	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	9650657	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2015	us-gaap	Exploration And Production Costs ExplorationAndProductionCosts	9335244	USD
CY2016	us-gaap	Exploration And Production Costs ExplorationAndProductionCosts	9062179	USD
CY2017	us-gaap	Exploration And Production Costs ExplorationAndProductionCosts	10835809	USD
CY2015	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	0	USD
CY2016	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	0	USD
CY2017	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	0	USD
CY2015Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	807030282	USD
CY2016Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	383491193	USD
CY2017Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	425094736	USD
CY2015Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	49691006	USD
CY2016Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	16595047	USD
CY2017Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	22631856	USD
CY2015Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	123888665	USD
CY2016Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	45713438	USD
CY2017Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	47055551	USD
CY2015Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	324225278	USD
CY2016Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	142000143	USD
CY2017Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	142291886	USD
CY2015Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	309225333	USD
CY2016Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	179182565	USD
CY2017Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	213115443	USD
CY2015Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	165028739	USD
CY2016Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	64042824	USD
CY2017Q2	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	59354333	USD
CY2016	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	28096500	USD
CY2017	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2015	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	6256783	USD
CY2015	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-109974	USD
CY2016	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	3439229	USD
CY2017	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	29758	USD
CY2015	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9079597	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	4985408	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	8436078	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	34231141	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	12884977	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3444221	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9570779	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4840664	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	2868267	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	11638588	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4380892	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	0	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-2242620	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-92196	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	27884	USD
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-19754	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-21604	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1371	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	595708	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	196415	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	522713	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	220000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	540000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	1495377	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	551452	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	822730	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-1626648	USD
CY2015	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	190032	USD
CY2016	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	431818	USD
CY2017	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-621850	USD
CY2015	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-9585405	USD
CY2016	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	74991	USD
CY2017	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-1626833	USD
CY2015	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	34157767	USD
CY2016	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	36598239	USD
CY2017	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-5045279	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-378049	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-24754	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	135923	USD
CY2015	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	1665261	USD
CY2016	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-484285	USD
CY2017	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	88514	USD
CY2015	us-gaap	Interest Expense InterestExpense	73636	USD
CY2016	us-gaap	Interest Expense InterestExpense	70943	USD
CY2017	us-gaap	Interest Expense InterestExpense	81758	USD
CY2016Q2	us-gaap	Liabilities Liabilities	21129901	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-17630298	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-10463538	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	10380775	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	30653193	USD
CY2017Q2	us-gaap	Liabilities Liabilities	19798813	USD
CY2016Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	97451051	USD
CY2017Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	88268668	USD
CY2016Q2	us-gaap	Liabilities Current LiabilitiesCurrent	8528908	USD
CY2017Q2	us-gaap	Liabilities Current LiabilitiesCurrent	2718894	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-9160247	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	935408	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-17076226	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-5042285	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	16490857	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	4991857	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	24660362	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	8044313	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	4317555	USD
CY2015Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2923652	USD
CY2015Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	654697	USD
CY2016Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-298183	USD
CY2016Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	20705894	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	23986060	USD
CY2016Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	563345	USD
CY2016Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2307634	USD
CY2017Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2419143	USD
CY2017Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1500761	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	6790883	USD
CY2015	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-88043095	USD
CY2016	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-120832747	USD
CY2017	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	19821288	USD
CY2016Q2	us-gaap	Oil And Gas Property Full Cost Method Depletion OilAndGasPropertyFullCostMethodDepletion	17437890	USD
CY2017Q2	us-gaap	Oil And Gas Property Full Cost Method Depletion OilAndGasPropertyFullCostMethodDepletion	23172865	USD
CY2016Q2	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	77408353	USD
CY2017Q2	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	84962933	USD
CY2016Q2	us-gaap	Oil And Gas Property Full Cost Method Net OilAndGasPropertyFullCostMethodNet	59970463	USD
CY2017Q2	us-gaap	Oil And Gas Property Full Cost Method Net OilAndGasPropertyFullCostMethodNet	61790068	USD
CY2015	us-gaap	Operating Expenses OperatingExpenses	19257568	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	24684315	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	21604774	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	8583697	USD
CY2015Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	1846498	USD
CY2015Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-454987	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-681147	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	954823	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	1665187	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	2727593	USD
CY2017Q2	us-gaap	Prepaid Taxes PrepaidTaxes	121232	USD
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	3675381	USD
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	3893236	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	2583912	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	12880122	USD
CY2017Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	295384	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	19100000	USD
CY2016Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	2097951	USD
CY2017Q2	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	140057	USD
CY2017Q2	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	73073	USD
CY2017Q2	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	66984	USD
CY2015	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	175103	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	182626	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	80472	USD
CY2016Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	46273	USD
CY2017Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1841	USD
CY2016Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	365489	USD
CY2017Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	617839	USD
CY2016Q2	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	52500	USD
CY2017Q2	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	89471	USD
CY2016Q2	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	595	USD
CY2017Q2	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	3822	USD
CY2015	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	0	USD
CY2016	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-3633831	USD
CY2017	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	272318	USD
CY2015	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	236559	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	161345	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2015	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	0	USD
CY2016	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	0	USD
CY2017	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	7932975	USD
CY2015	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	94075	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	168972	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2015	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	9833642	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	6565823	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	8432435	USD
CY2015	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	674302	USD
CY2016	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	674302	USD
CY2017	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	250990	USD
CY2015	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	313059	USD
CY2016	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	6883	USD
CY2017	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	32260	USD
CY2015	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	674302	USD
CY2016	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	674302	USD
CY2017	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	250990	USD
CY2016Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2017Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2016Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2017Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2016Q2	us-gaap	Preferred Stock Value PreferredStockValue	317	USD
CY2017Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2016Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	265881	USD
CY2017Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	387672	USD
CY2016Q2	us-gaap	Prepaid Insurance PrepaidInsurance	168681	USD
CY2017Q2	us-gaap	Prepaid Insurance PrepaidInsurance	169416	USD
CY2016Q2	us-gaap	Prepaid Taxes PrepaidTaxes	0	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2016Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	59999112	USD
CY2017Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	61830757	USD
CY2015	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	7785095	USD
CY2016	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	16327883	USD
CY2017	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	2632547	USD
CY2015	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	331733	USD
CY2016	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	1556999	USD
CY2017	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	0	USD
CY2015	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	67	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	33	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	32	USD
CY2015	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	398242	USD
CY2016	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	141600	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	51000	USD
CY2016Q2	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	235752	USD
CY2017Q2	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	135377	USD
CY2016Q2	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	207103	USD
CY2017Q2	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	94688	USD
CY2016Q2	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	28649	USD
CY2017Q2	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	40689	USD
CY2014Q2	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	13289510	Boe
CY2015Q2	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	12446394	Boe
CY2016Q2	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	10823421	Boe
CY2017Q2	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	10058378	Boe
CY2015	us-gaap	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	452786	Boe
CY2016	us-gaap	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	658802	Boe
CY2017	us-gaap	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	768433	Boe
CY2015	us-gaap	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	-390330	Boe
CY2016	us-gaap	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	-964171	Boe
CY2017	us-gaap	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	3390	Boe
CY2015	us-gaap	Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy	0	Boe
CY2016	us-gaap	Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy	0	Boe
CY2017	us-gaap	Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy	0	Boe
CY2014Q2	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	7970562	Boe
CY2015Q2	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	7349626	Boe
CY2016Q2	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	7168249	Boe
CY2017Q2	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	7950192	Boe
CY2014Q2	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	5318948	Boe
CY2015Q2	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	5096768	Boe
CY2016Q2	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	3655172	Boe
CY2017Q2	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	2108186	Boe
CY2016Q2	us-gaap	Receivables Net Current ReceivablesNetCurrent	2638188	USD
CY2017Q2	us-gaap	Receivables Net Current ReceivablesNetCurrent	2726702	USD
CY2015	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-9391321	USD
CY2016	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-18821014	USD
CY2017	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-2206287	USD
CY2015	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	18538016	USD
CY2015	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	0	USD
CY2016	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	0	USD
CY2016	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	17079363	USD
CY2017	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	23649087	USD
CY2017	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	1002440	USD
CY2015	us-gaap	Restructuring Charges RestructuringCharges	-5431	USD
CY2016	us-gaap	Restructuring Charges RestructuringCharges	1257433	USD
CY2016Q4	us-gaap	Restructuring Charges RestructuringCharges	1300000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	4488	USD
CY2016Q2	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	419488	USD
CY2017Q2	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	0	USD
CY2016Q2	us-gaap	Retainage Deposit RetainageDeposit	30568	USD
CY2017Q2	us-gaap	Retainage Deposit RetainageDeposit	7553	USD
CY2016Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	29116363	USD
CY2017Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	27474811	USD
CY2015	us-gaap	Sales Revenue Net SalesRevenueNet	27841265	USD
CY2015Q3	us-gaap	Sales Revenue Net SalesRevenueNet	7379406	USD
CY2015Q4	us-gaap	Sales Revenue Net SalesRevenueNet	6622927	USD
CY2016Q1	us-gaap	Sales Revenue Net SalesRevenueNet	5106735	USD
CY2016Q2	us-gaap	Sales Revenue Net SalesRevenueNet	7240434	USD
CY2016	us-gaap	Sales Revenue Net SalesRevenueNet	26349502	USD
CY2016Q3	us-gaap	Sales Revenue Net SalesRevenueNet	7593940	USD
CY2016Q4	us-gaap	Sales Revenue Net SalesRevenueNet	8529817	USD
CY2017Q1	us-gaap	Sales Revenue Net SalesRevenueNet	9525437	USD
CY2017Q2	us-gaap	Sales Revenue Net SalesRevenueNet	8835702	USD
CY2017	us-gaap	Sales Revenue Net SalesRevenueNet	34484896	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	943653	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	1809548	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	1180618	USD
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	501810	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	131000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	188821	USD
CY2017Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	0	USD
CY2016Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	35231	shares
CY2017Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0	shares
CY2016Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	2.19
CY2017Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	0.00
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	2.19
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P0Y
CY2015	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-15240698	USD
CY2016	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	622141	USD
CY2017	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	4966981	USD
CY2015	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	31974540	USD
CY2016	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	21870650	USD
CY2017	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	10086904	USD
CY2014Q2	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	226077672	USD
CY2015Q2	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	159196539	USD
CY2016Q2	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	77957319	USD
CY2017Q2	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	82937553	USD
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	87000	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	50000	shares
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	35231	shares
CY2015	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	67	USD
CY2016	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	33	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	32	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	0	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	141600	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	127500	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	77156	USD
CY2017	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	7932975	USD
CY2015	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	504124	USD
CY2016	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1263402	USD
CY2017	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	537014	USD
CY2014Q2	us-gaap	Stockholders Equity StockholdersEquity	51877522	USD
CY2015Q2	us-gaap	Stockholders Equity StockholdersEquity	48576577	USD
CY2016Q2	us-gaap	Stockholders Equity StockholdersEquity	76321150	USD
CY2017Q2	us-gaap	Stockholders Equity StockholdersEquity	68469855	USD
CY2016Q2	us-gaap	Taxes Payable Current TaxesPayableCurrent	621850	USD
CY2017Q2	us-gaap	Taxes Payable Current TaxesPayableCurrent	0	USD
CY2015	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2016	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2017	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2017Q2	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	98468	USD
CY2015Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2016Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2017Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2015Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2016Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2017Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2015	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	106562	shares
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	50856	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	76080	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32924018	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32861231	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	33110560	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32817456	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32810375	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	33034480	shares
CY2015	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	0	USD
CY2016	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	50414	USD
CY2017	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	0	USD
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates.</font><font style="font-family:inherit;font-size:10pt;">    The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities at the dates of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Significant estimates include (a) reserve quantities and estimated future cash flows associated with proved reserves, which significantly impact depletion expense and potential impairments of oil and natural gas properties, (b) asset retirement obligations, (c) stock-based compensation, (d) fair values of derivative assets and liabilities, (e) income taxes and the valuation of deferred tax assets and (f) commitments and contingencies. We analyze our estimates based on historical experience and various other assumptions that we believe to be reasonable. While we believe that our estimates and assumptions used in preparation of the consolidated financial statements are appropriate, actual results could differ from those estimates.</font></div></div>

Files In Submission

Name	View Source	Status
0001006655-17-000036-index-headers.html	Edgar Link	pending
0001006655-17-000036-index.html	Edgar Link	pending
0001006655-17-000036.txt	Edgar Link	pending
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$EPM
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2017 Form 10-K Financial Statement

#000100665517000036 Filed on September 15, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EPM EVOLUTION PETROLEUM CORP Stock $epm

2017 Form 10-K Financial Statement

#000100665517000036 Filed on September 15, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EPM
EVOLUTION PETROLEUM CORP Stock $epm