$GPOR
GULFPORT ENERGY CORP Stock $gpor

$gpor Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-Q Financial Statement

#000162828021016181 Filed on August 09, 2021

Income Statement

Concept	2021 Q2	2020 Q2
Revenue	$5.724M	$186.3M
YoY Change	-96.93%	-63.65%
Cost Of Revenue	$41.38M	$113.9M
YoY Change	-63.66%	58.11%
Gross Profit	-$35.65M	$72.44M
YoY Change	-149.22%	-83.55%
Gross Profit Margin	-622.85%	38.88%
Selling, General & Admin	$109.5M	$123.6M
YoY Change	-11.4%	47.63%
% of Gross Profit		170.68%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$32.36M	$64.79M
YoY Change	-50.05%	-48.15%
% of Gross Profit		89.44%
Operating Expenses	$164.2M	$189.2M
YoY Change	-13.22%	-21.85%
Operating Profit	-$201.7M	-$555.8M
YoY Change	-63.7%	-354.4%
Interest Expense	$8.894M	$32.37M
YoY Change	-72.52%	-11.13%
% of Operating Profit
Other Income/Expense, Net	-$7.843M	-$5.318M
YoY Change	47.48%	-96.73%
Pretax Income	-$209.6M	-$561.1M
YoY Change	-62.65%	-1108.66%
Income Tax	$0.00	$0.00
% Of Pretax Income
Net Earnings	-$209.6M	-$561.1M
YoY Change	-62.65%	-338.8%
Net Earnings / Revenue	-3661.53%	-301.16%
Basic Earnings Per Share	-$10.36	-$3.51
Diluted Earnings Per Share	-$10.36	-$3.51
COMMON SHARES
Basic Shares Outstanding	20.32M shares	159.9M shares
Diluted Shares Outstanding	160.9M shares	159.9M shares

Balance Sheet

Concept	2021 Q2	2020 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$9.389M	$2.817M
YoY Change	233.3%	-86.44%
Cash & Equivalents	$1.526M	$2.817M
Short-Term Investments
Other Short-Term Assets	$56.10M	$64.05M
YoY Change	-12.42%	-55.64%
Inventory
Prepaid Expenses
Receivables	$180.7M	$65.65M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$284.3M	$151.9M
YoY Change	87.17%	-55.78%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.934B	$2.370B
YoY Change	-18.39%	-58.59%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$0.00	$13.05M
YoY Change	-100.0%	-89.06%
Other Assets	$25.97M	$37.00M
YoY Change	-29.82%	201.3%
Total Long-Term Assets	$1.969B	$2.428B
YoY Change	-18.93%	-60.33%
TOTAL ASSETS
Total Short-Term Assets	$284.3M	$151.9M
Total Long-Term Assets	$1.969B	$2.428B
Total Assets	$2.253B	$2.580B
YoY Change	-12.68%	-60.09%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$397.8M	$315.6M
YoY Change	26.06%	-36.1%
Accrued Expenses	$39.00K	$3.356M
YoY Change	-98.84%	-91.35%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$60.00M	$649.0K
YoY Change	9144.99%	5.53%
Total Short-Term Liabilities	$665.7M	$328.1M
YoY Change	102.89%	-38.49%
LONG-TERM LIABILITIES
Long-Term Debt	$792.8M	$1.910B
YoY Change	-58.5%	-13.12%
Other Long-Term Liabilities	$132.8M	$107.3M
YoY Change	23.82%	-12.65%
Total Long-Term Liabilities	$892.6M	$1.910B
YoY Change	-53.28%	-13.12%
TOTAL LIABILITIES
Total Short-Term Liabilities	$665.7M	$328.1M
Total Long-Term Liabilities	$892.6M	$1.910B
Total Liabilities	$1.558B	$2.349B
YoY Change	-33.66%	-17.81%
SHAREHOLDERS EQUITY
Retained Earnings	$0.00	-$3.926B
YoY Change	-100.0%	616.26%
Common Stock	$2.000K	$1.601M
YoY Change	-99.88%	0.44%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$54.11M
YoY Change
Treasury Stock Shares	937.0K shares
Shareholders Equity	$453.1M	$231.3M
YoY Change
Total Liabilities & Shareholders Equity	$2.253B	$2.580B
YoY Change	-12.68%	-60.09%

Cashflow Statement

Concept	2021 Q2	2020 Q2
OPERATING ACTIVITIES
Net Income	-$209.6M	-$561.1M
YoY Change	-62.65%	-338.8%
Depreciation, Depletion And Amortization	$32.36M	$64.79M
YoY Change	-50.05%	-48.15%
Cash From Operating Activities	$38.37M	$116.4M
YoY Change	-67.04%	-27.26%
INVESTING ACTIVITIES
Capital Expenditures	-$85.86M	-$161.1M
YoY Change	-46.72%	-39.73%
Acquisitions
YoY Change
Other Investing Activities	$77.00K	$862.0K
YoY Change	-91.07%	-68.22%
Cash From Investing Activities	-$40.28M	-$160.3M
YoY Change	-74.87%	-39.44%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$0.00
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$18.98M	45.08M
YoY Change	-142.11%	-58.04%
NET CHANGE
Cash From Operating Activities	$38.37M	116.4M
Cash From Investing Activities	-$40.28M	-160.3M
Cash From Financing Activities	-$18.98M	45.08M
Net Change In Cash	-$20.89M	1.184M
YoY Change	-1864.61%	-57.43%
FREE CASH FLOW
Cash From Operating Activities	$38.37M	$116.4M
Capital Expenditures	-$85.86M	-$161.1M
Free Cash Flow	$124.2M	$277.5M
YoY Change	-55.24%	-35.06%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Entity Central Index Key EntityCentralIndexKey	0000874499
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-06-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-19514
	dei	Entity Registrant Name EntityRegistrantName	Gulfport Energy Corp
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	86-3684669
	dei	Entity Address Address Line1 EntityAddressAddressLine1	3001 Quail Springs Parkway
	dei	Entity Address City Or Town EntityAddressCityOrTown	Oklahoma City,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	OK
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	73134
	dei	City Area Code CityAreaCode	405
	dei	Local Phone Number LocalPhoneNumber	252-4600
	dei	Security12b Title Security12bTitle	Common Stock, $0.0001 par value per share
	dei	Trading Symbol TradingSymbol	GPOR
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	20585599	shares
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CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	89861000	USD
CY2021Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	29135000	USD
CY2020Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2021Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	140663000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	119879000	USD
CY2021Q2	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	10695000	USD
CY2020Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	12200000	USD
CY2021Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	24737000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	160664000	USD
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CY2020Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	27146000	USD
CY2021Q2	us-gaap	Assets Current AssetsCurrent	216842000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	409750000	USD
CY2021Q2	gpor	Proved Oil And Gas Property Full Cost Method Gross ProvedOilAndGasPropertyFullCostMethodGross	1737778000	USD
CY2020Q4	gpor	Proved Oil And Gas Property Full Cost Method Gross ProvedOilAndGasPropertyFullCostMethodGross	9359866000	USD
CY2021Q2	gpor	Unproved Oil And Gas Property Full Cost Method Gross UnprovedOilAndGasPropertyFullCostMethodGross	224214000	USD
CY2020Q4	gpor	Unproved Oil And Gas Property Full Cost Method Gross UnprovedOilAndGasPropertyFullCostMethodGross	1457043000	USD
CY2021Q2	gpor	Property Plantand Equipment Other Than Oil And Gas Property Gross PropertyPlantandEquipmentOtherThanOilAndGasPropertyGross	6914000	USD
CY2020Q4	gpor	Property Plantand Equipment Other Than Oil And Gas Property Gross PropertyPlantandEquipmentOtherThanOilAndGasPropertyGross	88538000	USD
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CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1818731000	USD
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CY2021Q2	us-gaap	Common Stock Value CommonStockValue	2000	USD
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CY2021Q2	us-gaap	Revenues Revenues	25679000	USD
CY2020Q2	us-gaap	Revenues Revenues	186301000	USD
CY2021Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	4116000	USD
CY2021Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	6871000	USD
CY2020Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	13078000	USD
CY2021Q2	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	5056000	USD
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CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-209586000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	234246000	USD
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CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
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CY2020Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-210617000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	242214000	USD
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CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-10.36
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.51
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.51
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-10.36
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.51
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.51
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20321000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	160887000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159934000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20321000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	160887000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159934000	shares
CY2021Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-139658000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-137239000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	125237000	USD
CY2021Q2	us-gaap	Revenues Revenues	5724000	USD
	us-gaap	Revenues Revenues	273037000	USD
	us-gaap	Revenues Revenues	485639000	USD
CY2021Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	4116000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	19524000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	27773000	USD
CY2021Q2	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	5056000	USD
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	12349000	USD
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	12937000	USD
CY2021Q2	us-gaap	Cost Of Revenue CostOfRevenue	41376000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	161086000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	224222000	USD
CY2021Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	32362000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	62764000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	142818000	USD
CY2021Q2	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	117813000	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	1086225000	USD
CY2021Q2	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	USD
	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	14568000	USD
	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	USD
CY2021Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	6518000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	19175000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	25388000	USD
CY2021Q2	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2021Q2	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	226000	USD
	us-gaap	Restructuring Charges RestructuringCharges	0	USD
	us-gaap	Restructuring Charges RestructuringCharges	617000	USD
	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1229000	USD
	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1496000	USD
CY2021Q2	us-gaap	Costs And Expenses CostsAndExpenses	207467000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	290695000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	1521476000	USD
CY2021Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-201743000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-17658000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-1035837000	USD
CY2021Q2	us-gaap	Interest Expense InterestExpense	8894000	USD
	us-gaap	Interest Expense InterestExpense	4159000	USD
	us-gaap	Interest Expense InterestExpense	65356000	USD
CY2021Q2	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	49579000	USD
CY2021Q2	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	0	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-342000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-10834000	USD
CY2021Q2	us-gaap	Reorganization Items ReorganizationItems	0	USD
	us-gaap	Reorganization Items ReorganizationItems	-266898000	USD
	us-gaap	Reorganization Items ReorganizationItems	0	USD
CY2021Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1051000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1711000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-8868000	USD
CY2021Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-7843000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	260686000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-35479000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-209586000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	243028000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1071316000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7968000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7290000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-209586000	USD
	us-gaap	Net Income Loss NetIncomeLoss	250996000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1078606000	USD
CY2021Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	1031000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-210617000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	250996000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1078606000	USD
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-10.36
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.56
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-6.75
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-10.36
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.56
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-6.75
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20321000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	160834000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159847000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20321000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	160834000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159847000	shares
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-209586000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	242214000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-561068000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	0	USD
CY2021Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	6872000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	0	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6872000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-209586000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	242214000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-554196000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-209586000	USD
	us-gaap	Net Income Loss NetIncomeLoss	250996000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1078606000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	0	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	0	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-8158000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	0	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	0	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-8158000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-209586000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	250996000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1086764000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1314592000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-517538000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-15030000	USD
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2104000	USD
CY2020Q1	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	79000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	784049000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-561068000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6872000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1515000	USD
CY2020Q2	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	28000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	231340000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	-300500000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	8780000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2570000	USD
CY2021Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1419000	USD
CY2021Q1	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	8000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	-287738000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	242214000	USD
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5095000	USD
CY2021Q2	gpor	Accumulated Other Comprehensive Income Loss Extinguishment AccumulatedOtherComprehensiveIncomeLossExtinguishment	40430000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	693775000	USD
CY2021Q2	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	54109000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	639667000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	639667000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-209586000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	23893000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	147000	USD
CY2021Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	1031000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	453090000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-209586000	USD
	us-gaap	Net Income Loss NetIncomeLoss	250996000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1078606000	USD
CY2021Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	32362000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	62764000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	142818000	USD
CY2021Q2	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	117813000	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	1086225000	USD
CY2021Q2	gpor	Impairment Of Other Properties And Equipment ImpairmentOfOtherPropertiesAndEquipment	0	USD
	gpor	Impairment Of Other Properties And Equipment ImpairmentOfOtherPropertiesAndEquipment	14568000	USD
	gpor	Impairment Of Other Properties And Equipment ImpairmentOfOtherPropertiesAndEquipment	0	USD
CY2021Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-342000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-10834000	USD
CY2021Q2	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	49579000	USD
CY2021Q2	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-139658000	USD
	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-137239000	USD
	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	125237000	USD
CY2021Q2	gpor	Cash Settlement On Derivative Instruments CashSettlementOnDerivativeInstruments	-6689000	USD
	gpor	Cash Settlement On Derivative Instruments CashSettlementOnDerivativeInstruments	-3361000	USD
	gpor	Cash Settlement On Derivative Instruments CashSettlementOnDerivativeInstruments	195232000	USD
CY2021Q2	gpor	Non Cash Reorganization Items NonCashReorganizationItems	0	USD
	gpor	Non Cash Reorganization Items NonCashReorganizationItems	-446012000	USD
	gpor	Non Cash Reorganization Items NonCashReorganizationItems	0	USD
CY2021Q2	gpor	Deferred Income Tax Expense Benefit Including Discontinued Operations DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations	0	USD
	gpor	Deferred Income Tax Expense Benefit Including Discontinued Operations DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations	0	USD
	gpor	Deferred Income Tax Expense Benefit Including Discontinued Operations DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations	7290000	USD
CY2021Q2	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-397000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	1725000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	9844000	USD
CY2021Q2	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	34796000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-153894000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-48401000	USD
CY2021Q2	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	38365000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	172155000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	247222000	USD
CY2021Q2	us-gaap	Payments To Acquire Oil And Gas Property PaymentsToAcquireOilAndGasProperty	40424000	USD
	us-gaap	Payments To Acquire Oil And Gas Property PaymentsToAcquireOilAndGasProperty	102330000	USD
	us-gaap	Payments To Acquire Oil And Gas Property PaymentsToAcquireOilAndGasProperty	274851000	USD
CY2021Q2	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	225000	USD
	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	15000	USD
	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	45185000	USD
CY2021Q2	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	77000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-4484000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	424000	USD
CY2021Q2	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-40276000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-97831000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-230090000	USD
CY2021Q2	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	1206000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	7100000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2021Q2	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	USD
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	USD
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	22827000	USD
CY2021Q2	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	50000000	USD
	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2021Q2	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-25000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-8000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-548000	USD
CY2021Q2	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-18982000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-104768000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-20375000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-20893000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-30444000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-3243000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	59417000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	89861000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	6060000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	38524000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	59417000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2817000	USD
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Certain reclassifications have been made to prior period financial statements and related disclosures to conform to current period presentation. These reclassifications have no impact on previous reported total assets, total liabilities, net loss or total operating cash flows.
CY2021Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	29100000	USD
	gpor	Increase Decreasein Accounts Receivable Joint Operationsand Other IncreaseDecreaseinAccountsReceivableJointOperationsandOther	3005000	USD
CY2020Q2	us-gaap	Revenues Revenues	186301000	USD
CY2020Q2	us-gaap	Cost Of Revenue CostOfRevenue	113865000	USD
CY2020Q2	us-gaap	Costs And Expenses CostsAndExpenses	742051000	USD
	us-gaap	Revenues Revenues	485639000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	224222000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	1521476000	USD
CY2021Q2	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	147852000	USD
CY2020Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	120275000	USD
CY2021Q2	gpor	Revenue Payable And Suspense Current RevenuePayableAndSuspenseCurrent	127954000	USD
CY2020Q4	gpor	Revenue Payable And Suspense Current RevenuePayableAndSuspenseCurrent	124628000	USD
CY2021Q2	gpor	Accrued Contract Damages And Treasury Shares Current AccruedContractDamagesAndTreasurySharesCurrent	121994000	USD
CY2020Q4	gpor	Accrued Contract Damages And Treasury Shares Current AccruedContractDamagesAndTreasurySharesCurrent	0	USD
CY2021Q2	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	397800000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	244903000	USD
CY2021Q2	gpor	Payments For Reorganization Items PaymentsForReorganizationItems	15369000	USD
	gpor	Payments For Reorganization Items PaymentsForReorganizationItems	87199000	USD
	gpor	Payments For Reorganization Items PaymentsForReorganizationItems	0	USD
CY2021Q2	us-gaap	Interest Paid Net InterestPaidNet	2072000	USD
	us-gaap	Interest Paid Net InterestPaidNet	7272000	USD
	us-gaap	Interest Paid Net InterestPaidNet	60523000	USD
CY2021Q2	gpor	Increase Decreasein Accounts Receivable Oiland Natural Gas IncreaseDecreaseinAccountsReceivableOilandNaturalGas	-40048000	USD
	gpor	Increase Decreasein Accounts Receivable Oiland Natural Gas IncreaseDecreaseinAccountsReceivableOilandNaturalGas	60832000	USD
	gpor	Increase Decreasein Accounts Receivable Oiland Natural Gas IncreaseDecreaseinAccountsReceivableOilandNaturalGas	-55565000	USD
CY2021Q2	gpor	Increase Decreasein Accounts Receivable Joint Operationsand Other IncreaseDecreaseinAccountsReceivableJointOperationsandOther	-4510000	USD
	gpor	Increase Decreasein Accounts Receivable Joint Operationsand Other IncreaseDecreaseinAccountsReceivableJointOperationsandOther	-29159000	USD
CY2021Q2	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-80097000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	79193000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-30620000	USD
CY2021Q2	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-681000	USD
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-135471000	USD
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	5744000	USD
CY2021Q2	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-62000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3067000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-41000	USD
CY2021Q2	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	34796000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-153894000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-48401000	USD
CY2021Q2	gpor	Capitalized Stock Based Compensation CapitalizedStockBasedCompensation	0	USD
	gpor	Capitalized Stock Based Compensation CapitalizedStockBasedCompensation	930000	USD
	gpor	Capitalized Stock Based Compensation CapitalizedStockBasedCompensation	1891000	USD
CY2021Q2	us-gaap	Asset Retirement Obligation Period Increase Decrease AssetRetirementObligationPeriodIncreaseDecrease	36000	USD
	us-gaap	Asset Retirement Obligation Period Increase Decrease AssetRetirementObligationPeriodIncreaseDecrease	546000	USD
	us-gaap	Asset Retirement Obligation Period Increase Decrease AssetRetirementObligationPeriodIncreaseDecrease	1553000	USD
CY2021Q2	gpor	Asset Retirement Obligation Removed Due To Divestiture AssetRetirementObligationRemovedDueToDivestiture	0	USD
	gpor	Asset Retirement Obligation Removed Due To Divestiture AssetRetirementObligationRemovedDueToDivestiture	0	USD
	gpor	Asset Retirement Obligation Removed Due To Divestiture AssetRetirementObligationRemovedDueToDivestiture	2033000	USD
CY2021Q2	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	710000	USD
CY2021Q2	gpor	Noncash Or Part Noncash Acquisition Contingent Consideration NoncashOrPartNoncashAcquisitionContingentConsideration	0	USD
	gpor	Noncash Or Part Noncash Acquisition Contingent Consideration NoncashOrPartNoncashAcquisitionContingentConsideration	0	USD
	gpor	Noncash Or Part Noncash Acquisition Contingent Consideration NoncashOrPartNoncashAcquisitionContingentConsideration	23090000	USD
CY2021Q2	us-gaap	Stock Issued1 StockIssued1	23893000	USD
	us-gaap	Stock Issued1 StockIssued1	0	USD
	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2021Q2	gpor	Foreign Currency Translation Gain Loss On Investment In Equity Method Investment ForeignCurrencyTranslationGainLossOnInvestmentInEquityMethodInvestment	0	USD
	gpor	Foreign Currency Translation Gain Loss On Investment In Equity Method Investment ForeignCurrencyTranslationGainLossOnInvestmentInEquityMethodInvestment	2570000	USD
	gpor	Foreign Currency Translation Gain Loss On Investment In Equity Method Investment ForeignCurrencyTranslationGainLossOnInvestmentInEquityMethodInvestment	-8158000	USD
CY2021Q2	us-gaap	Reorganization Value ReorganizationValue	2300000000	USD
CY2021Q2	gpor	Reorganization Post Petition Liabilities And Allowed Claims ReorganizationPostPetitionLiabilitiesAndAllowedClaims	3100000000	USD
CY2021Q2	gpor	Enterprise Value EnterpriseValue	1600000000	USD
CY2021Q2	gpor	Enterprise Value EnterpriseValue	1600000000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1526000	USD
CY2021Q2	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	852751000	USD
CY2021Q2	gpor	Stockholders Equity Including Mezzanine Equity StockholdersEquityIncludingMezzanineEquity	748775000	USD
CY2021Q2	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	55000000	USD
CY2021Q2	gpor	Enterprise Value EnterpriseValue	1600000000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1526000	USD
CY2021Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	686489000	USD
CY2021Q2	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	19084000	USD
CY2021Q2	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	54109000	USD
CY2021Q2	us-gaap	Reorganization Value ReorganizationValue	2252990000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1526000	USD
CY2021Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	57891000	USD
CY2021Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	180711000	USD
CY2021Q2	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	15431000	USD
CY2021Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	25295000	USD
CY2021Q2	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	3465000	USD
CY2021Q2	us-gaap	Assets Current AssetsCurrent	284319000	USD
CY2021Q2	gpor	Proved Oil And Gas Property Full Cost Method Gross ProvedOilAndGasPropertyFullCostMethodGross	1715049000	USD
CY2021Q2	gpor	Unproved Oil And Gas Property Full Cost Method Gross UnprovedOilAndGasPropertyFullCostMethodGross	212533000	USD
CY2021Q2	gpor	Property Plantand Equipment Other Than Oil And Gas Property Gross PropertyPlantandEquipmentOtherThanOilAndGasPropertyGross	6893000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1934475000	USD
CY2021Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	0	USD
CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1934475000	USD
CY2021Q2	us-gaap	Equity Method Investments EquityMethodInvestments	0	USD
CY2021Q2	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	8183000	USD
CY2021Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	47000	USD
CY2021Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	25966000	USD
CY2021Q2	gpor	Total Other Assets TotalOtherAssets	34196000	USD
CY2021Q2	us-gaap	Assets Assets	2252990000	USD
CY2021Q2	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	506799000	USD
CY2021Q2	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	98900000	USD
CY2021Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	38000	USD
CY2021Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	60000000	USD
CY2021Q2	us-gaap	Liabilities Current LiabilitiesCurrent	665737000	USD
CY2021Q2	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	80742000	USD
CY2021Q2	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	19084000	USD
CY2021Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	9000	USD
CY2021Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	792751000	USD
CY2021Q2	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	892586000	USD
CY2021Q2	us-gaap	Liabilities Liabilities	1558323000	USD
CY2021Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q2	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	55000000	USD
CY2021Q2	us-gaap	Common Stock Value CommonStockValue	2000	USD
CY2021Q2	us-gaap	Common Stock Value CommonStockValue	2000	USD
CY2021Q2	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	693774000	USD
CY2021Q2	us-gaap	Treasury Stock Value TreasuryStockValue	54109000	USD
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	USD
CY2021Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	0	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	639667000	USD
CY2021Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2252990000	USD
CY2021Q2	us-gaap	Liabilities Subject To Compromise LiabilitiesSubjectToCompromise	2224449000	USD
CY2021Q2	us-gaap	Debtor Reorganization Items Legal And Advisory Professional Fees DebtorReorganizationItemsLegalAndAdvisoryProfessionalFees	0	USD
CY2021Q2	us-gaap	Debtor Reorganization Items Legal And Advisory Professional Fees DebtorReorganizationItemsLegalAndAdvisoryProfessionalFees	40782000	USD
	us-gaap	Debtor Reorganization Items Legal And Advisory Professional Fees DebtorReorganizationItemsLegalAndAdvisoryProfessionalFees	81565000	USD
CY2021Q2	us-gaap	Debtor Reorganization Items Gain Loss On Settlement Of Other Claims Net1 DebtorReorganizationItemsGainLossOnSettlementOfOtherClaimsNet1	0	USD
CY2021Q2	us-gaap	Debtor Reorganization Items Gain Loss On Settlement Of Other Claims Net1 DebtorReorganizationItemsGainLossOnSettlementOfOtherClaimsNet1	571032000	USD
	us-gaap	Debtor Reorganization Items Gain Loss On Settlement Of Other Claims Net1 DebtorReorganizationItemsGainLossOnSettlementOfOtherClaimsNet1	575182000	USD
CY2021Q2	gpor	Debtor Reorganization Items Elimination Predecessor Accumulated Other Comprehensive Income DebtorReorganizationItemsEliminationPredecessorAccumulatedOtherComprehensiveIncome	40430000	USD
	gpor	Debtor Reorganization Items Elimination Predecessor Accumulated Other Comprehensive Income DebtorReorganizationItemsEliminationPredecessorAccumulatedOtherComprehensiveIncome	40430000	USD
CY2021Q2	us-gaap	Debtor Reorganization Items Debtor In Possession Facility Financing Costs DebtorReorganizationItemsDebtorInPossessionFacilityFinancingCosts	0	USD
CY2021Q2	us-gaap	Debtor Reorganization Items Debtor In Possession Facility Financing Costs DebtorReorganizationItemsDebtorInPossessionFacilityFinancingCosts	3150000	USD
	us-gaap	Debtor Reorganization Items Debtor In Possession Facility Financing Costs DebtorReorganizationItemsDebtorInPossessionFacilityFinancingCosts	3150000	USD
CY2021Q2	us-gaap	Debtor Reorganization Items Other Expense Income DebtorReorganizationItemsOtherExpenseIncome	0	USD
CY2021Q2	us-gaap	Debtor Reorganization Items Other Expense Income DebtorReorganizationItemsOtherExpenseIncome	20297000	USD
	us-gaap	Debtor Reorganization Items Other Expense Income DebtorReorganizationItemsOtherExpenseIncome	22383000	USD
CY2021Q2	us-gaap	Reorganization Items ReorganizationItems	0	USD
CY2021Q2	us-gaap	Reorganization Items ReorganizationItems	-305617000	USD
	us-gaap	Reorganization Items ReorganizationItems	-266898000	USD
CY2021Q2	gpor	Proved Oil And Gas Property Full Cost Method Gross ProvedOilAndGasPropertyFullCostMethodGross	1737778000	USD
CY2020Q4	gpor	Proved Oil And Gas Property Full Cost Method Gross ProvedOilAndGasPropertyFullCostMethodGross	9359866000	USD
CY2021Q2	gpor	Unproved Oil And Gas Property Full Cost Method Gross UnprovedOilAndGasPropertyFullCostMethodGross	224214000	USD
CY2020Q4	gpor	Unproved Oil And Gas Property Full Cost Method Gross UnprovedOilAndGasPropertyFullCostMethodGross	1457043000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	5407000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	85530000	USD
CY2021Q2	us-gaap	Land Land	1507000	USD
CY2020Q4	us-gaap	Land Land	3008000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1968906000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	10905447000	USD
CY2021Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	150175000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	8819178000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1818731000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2086269000	USD
CY2021Q2	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	117800000	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2021Q2	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2020Q2	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	532900000	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	1100000000	USD
CY2021Q2	gpor	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	2200000	USD
CY2021Q2	gpor	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	2500000	USD
	gpor	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	8000000.0	USD
CY2020Q2	gpor	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	8200000	USD
	gpor	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	13600000	USD
CY2021Q2	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	224214000	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	14600000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	63566000	USD
	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	546000	USD
	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1229000	USD
CY2021Q2	us-gaap	Asset Retirement Obligation AssetRetirementObligation	65341000	USD
CY2021Q2	gpor	Asset Retirement Obligation Less Adjustments AssetRetirementObligationLessAdjustments	19084000	USD
CY2021Q2	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	37000	USD
CY2021Q2	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	226000	USD
CY2021Q2	gpor	Asset Retirement Obligation Less Adjustments AssetRetirementObligationLessAdjustments	19347000	USD
CY2021Q2	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	1153000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	0	USD
CY2021Q2	us-gaap	Long Term Debt LongTermDebt	833847000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	2258962000	USD
CY2021Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	60000000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	253743000	USD
CY2021Q2	gpor	Liabilities Subject To Compromise Debt LiabilitiesSubjectToCompromiseDebt	0	USD
CY2020Q4	gpor	Liabilities Subject To Compromise Debt LiabilitiesSubjectToCompromiseDebt	2005219000	USD
CY2021Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	773847000	USD
CY2021Q2	gpor	Preferred Stock Value Outstanding Payment Period PreferredStockValueOutstandingPaymentPeriod	P3D
CY2021Q2	gpor	Debt Instrument Current Ratio DebtInstrumentCurrentRatio	1.00
CY2021Q2	us-gaap	Debtor In Possession Financing Letters Of Credit Outstanding DebtorInPossessionFinancingLettersOfCreditOutstanding	262500000	USD
CY2021Q2	us-gaap	Debtor In Possession Financing Amount Arranged DebtorInPossessionFinancingAmountArranged	105000000	USD
CY2021Q2	us-gaap	Debtor In Possession Financing Borrowings Outstanding DebtorInPossessionFinancingBorrowingsOutstanding	157500000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	USD
CY2021Q2	us-gaap	Line Of Credit Facility Unused Capacity Commitment Fee Percentage LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage	0.0050
CY2021Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	42000000	shares
CY2021Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2021Q2	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	110000	shares
CY2021Q2	us-gaap	Temporary Equity Par Or Stated Value Per Share TemporaryEquityParOrStatedValuePerShare	0.0001
CY2021Q2	us-gaap	Temporary Equity Liquidation Preference Per Share TemporaryEquityLiquidationPreferencePerShare	1000
CY2021Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	19800000	shares
CY2021Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	55000	shares
	us-gaap	Preferred Stock Dividend Rate Percentage PreferredStockDividendRatePercentage	0.10
	gpor	Preferred Stock Dividend Rate Percentage Pain In Kind PreferredStockDividendRatePercentagePainInKind	0.15
CY2021Q2	gpor	Dividends Paid In Kind Ratio DividendsPaidInKindRatio	1.50
CY2021Q2	us-gaap	Preferred Stock Convertible Conversion Price PreferredStockConvertibleConversionPrice	14.00
CY2021Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
	us-gaap	Preferred Stock Dividends Shares PreferredStockDividendsShares	1006	shares
	us-gaap	Dividends Preferred Stock Paidinkind DividendsPreferredStockPaidinkind	25000	USD
CY2021Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4400000	USD
CY2021Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-209586000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	242214000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-561068000	USD
CY2021Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	1031000	USD
CY2021Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2020Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2021Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2021Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2020Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	160887000	shares
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-210617000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-210617000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	242214000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	242214000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-561068000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-561068000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20321000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159934000	shares
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-10.36
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-10.36
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.51
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.51
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.51
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.51
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-209586000	USD
	us-gaap	Net Income Loss NetIncomeLoss	250996000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1078606000	USD
CY2021Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	1031000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2021Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-210617000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-210617000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	250996000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	250996000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1078606000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-1078606000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20321000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	160834000	shares
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-10.36
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-6.75
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159847000	shares
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-10.36
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.56
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.56
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-6.75
CY2021Q2	gpor	Supply Commitment Remainderof Fiscal Year SupplyCommitmentRemainderofFiscalYear	16000	MMBTU
CY2021Q2	gpor	Supply Commitment Due In Year One SupplyCommitmentDueInYearOne	4000	MMBTU
CY2021Q2	gpor	Supply Commitment Due In Year Two SupplyCommitmentDueInYearTwo	0	MMBTU
CY2021Q2	gpor	Supply Commitment Due In Year Three SupplyCommitmentDueInYearThree	0	MMBTU
CY2021Q2	gpor	Supply Commitment Due In Year Four SupplyCommitmentDueInYearFour	0	MMBTU
CY2021Q2	gpor	Supply Commitment Due In Year Thereafter SupplyCommitmentDueInYearThereafter	0	MMBTU
	us-gaap	Loss Contingency New Claims Filed Number LossContingencyNewClaimsFiledNumber	2	claim
CY2020Q2	gpor	Loss Contingency Damages Sought Percentage Of Unpaid Overtime Compensation LossContingencyDamagesSoughtPercentageOfUnpaidOvertimeCompensation	0.06
CY2020Q2	us-gaap	Loss Contingency Damages Sought Value LossContingencyDamagesSoughtValue	5800000	USD
CY2021Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-139658000	USD
CY2021Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-107261000	USD
CY2020Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	26971000	USD
CY2021Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-139658000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-137239000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	125237000	USD
CY2021Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	5237000	USD
CY2021Q2	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	5237000	USD
CY2021Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	0	USD
CY2021Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	306200000	USD
CY2021Q2	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	5237000	USD
CY2021Q2	us-gaap	Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	300963000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	27468000	USD
CY2020Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	25730000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	1738000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	48245000	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	25730000	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	22515000	USD
CY2021Q2	gpor	Contingent Consideration Asset Fair Value ContingentConsiderationAssetFairValue	6500000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	25000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	0	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	24816000	USD
CY2021Q2	gpor	Contingent Consideration Change In Amount Asset ContingentConsiderationChangeInAmountAsset	1100000	USD
CY2021Q2	gpor	Contingent Consideration Change In Amount Asset ContingentConsiderationChangeInAmountAsset	1100000	USD
	gpor	Contingent Consideration Change In Amount Asset ContingentConsiderationChangeInAmountAsset	1100000	USD
CY2020Q2	gpor	Contingent Consideration Change In Amount Asset ContingentConsiderationChangeInAmountAsset	-3200000	USD
	gpor	Contingent Consideration Change In Amount Asset ContingentConsiderationChangeInAmountAsset	-3000000.0	USD
CY2021Q2	gpor	Contingent Consideration Asset Settlements ContingentConsiderationAssetSettlements	600000	USD
	gpor	Contingent Consideration Asset Settlements ContingentConsiderationAssetSettlements	200000	USD
	gpor	Contingent Consideration Asset Settlements ContingentConsiderationAssetSettlements	300000	USD
CY2021Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	140700000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	119900000	USD
	us-gaap	Revenue Performance Obligation Description Of Timing RevenuePerformanceObligationDescriptionOfTiming	However, settlement statements for certain sales may be received for 30 to 90 days after the date production is delivered, and as a result, the Company is required to estimate the amount of production that was delivered to the purchaser and the price that will be received for the sale of the product
CY2021Q2	us-gaap	Equity Method Investments EquityMethodInvestments	0	USD
CY2021Q2	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	0	USD
CY2021Q2	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	0	USD
CY2021Q2	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	0	USD
CY2020Q2	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-45000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-342000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-10834000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	20000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	0	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	45000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1000	USD
CY2021Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	44000	USD
CY2021Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	8000	USD
CY2021Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	9000	USD
CY2020Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	2196000	USD
CY2021Q2	us-gaap	Variable Lease Cost VariableLeaseCost	0	USD
CY2021Q2	us-gaap	Variable Lease Cost VariableLeaseCost	0	USD
CY2020Q2	us-gaap	Variable Lease Cost VariableLeaseCost	235000	USD
CY2021Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2160000	USD
CY2021Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2307000	USD
CY2020Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2629000	USD
CY2021Q2	us-gaap	Lease Cost LeaseCost	2168000	USD
CY2021Q2	us-gaap	Lease Cost LeaseCost	2316000	USD
CY2020Q2	us-gaap	Lease Cost LeaseCost	5060000	USD
CY2021Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	8000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	41000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	6278000	USD
CY2021Q2	us-gaap	Variable Lease Cost VariableLeaseCost	0	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	0	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	460000	USD
CY2021Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2160000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	4496000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	5439000	USD
CY2021Q2	us-gaap	Lease Cost LeaseCost	2168000	USD
	us-gaap	Lease Cost LeaseCost	4537000	USD
	us-gaap	Lease Cost LeaseCost	12177000	USD
CY2021Q2	us-gaap	Operating Lease Payments OperatingLeasePayments	15000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	48000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	72000	USD
CY2021Q2	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	0	USD
	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	0	USD
	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	7727000	USD
CY2021Q2	gpor	Operating Lease Payments Use Related Party OperatingLeasePaymentsUseRelatedParty	0	USD
	gpor	Operating Lease Payments Use Related Party OperatingLeasePaymentsUseRelatedParty	0	USD
	gpor	Operating Lease Payments Use Related Party OperatingLeasePaymentsUseRelatedParty	6800000	USD
CY2021Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P1Y1M20D
CY2021Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0398
CY2021Q2	gpor	Reorganization Chapter11 Bankruptcy Proceedings The Estimated In Equity Values Of Codi ReorganizationChapter11BankruptcyProceedingsTheEstimatedInEquityValuesOfCODI	708800000	USD
CY2021Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.033
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.033
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-8000000.0	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-8000000.0	USD
CY2021Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2020Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.007
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7300000	USD

Files In Submission

Name	View Source	Status
0001628280-21-016181-index-headers.html	Edgar Link	pending
0001628280-21-016181-index.html	Edgar Link	pending
0001628280-21-016181.txt	Edgar Link	pending
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a107-formrsuawardagreement.htm	Edgar Link	pending
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gpor-06302021xex312.htm	Edgar Link	pending
gpor-06302021xex321.htm	Edgar Link	pending
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$GPOR
GULFPORT ENERGY CORP Stock $gpor

2021 Q2 Form 10-Q Financial Statement

#000162828021016181 Filed on August 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GPOR GULFPORT ENERGY CORP Stock $gpor

2021 Q2 Form 10-Q Financial Statement

#000162828021016181 Filed on August 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GPOR
GULFPORT ENERGY CORP Stock $gpor