2019 Q2 Form 10-Q Financial Statement

#000162828019009836 Filed on August 02, 2019

View on sec.gov

Income Statement

Concept 2019 Q2 2018 Q2
Revenue $512.5M $252.7M
YoY Change 102.76% -21.98%
Cost Of Revenue $72.02M $71.44M
YoY Change 0.8% 175.83%
Gross Profit $440.4M $181.3M
YoY Change 142.93% -39.18%
Gross Profit Margin 85.95% 71.73%
Selling, General & Admin $83.74M $85.40M
YoY Change -1.94% 19.94%
% of Gross Profit 19.01% 47.1%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $125.0M $121.9M
YoY Change 2.49% 48.23%
% of Gross Profit 28.37% 67.24%
Operating Expenses $242.1M $238.9M
YoY Change 1.31% 32.18%
Operating Profit $218.5M $15.37M
YoY Change 1321.04% -89.26%
Interest Expense $36.42M $33.70M
YoY Change 8.05% 39.34%
% of Operating Profit 16.67% 219.24%
Other Income/Expense, Net -$162.8M $97.53M
YoY Change -266.96% -361.9%
Pretax Income $55.63M $111.3M
YoY Change -50.03% 5.08%
Income Tax -$179.3M $0.00
% Of Pretax Income -322.39% 0.0%
Net Earnings $235.0M $111.3M
YoY Change 111.07% 5.08%
Net Earnings / Revenue 45.85% 44.04%
Basic Earnings Per Share $1.47 $0.64
Diluted Earnings Per Share $1.47 $0.64
COMMON SHARES
Basic Shares Outstanding 159.3M shares 173.6M shares
Diluted Shares Outstanding 159.5M shares 174.1M shares

Balance Sheet

Concept 2019 Q2 2018 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments $20.78M $119.2M
YoY Change -82.57% 1.36%
Cash & Equivalents $20.78M $119.2M
Short-Term Investments
Other Short-Term Assets $144.4M $31.40M
YoY Change 359.85% -38.07%
Inventory
Prepaid Expenses
Receivables $131.7M $140.2M
Other Receivables $0.00 $0.00
Total Short-Term Assets $343.5M $344.6M
YoY Change -0.33% 3.61%
LONG-TERM ASSETS
Property, Plant & Equipment $5.724B $5.454B
YoY Change 4.95% 17.48%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments $119.3M $218.8M
YoY Change -45.48% -14.6%
Other Assets $12.28M $19.90M
YoY Change -38.3% 5.37%
Total Long-Term Assets $6.122B $5.710B
YoY Change 7.22% 15.08%
TOTAL ASSETS
Total Short-Term Assets $343.5M $344.6M
Total Long-Term Assets $6.122B $5.710B
Total Assets $6.465B $6.054B
YoY Change 6.79% 14.36%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $493.8M $584.4M
YoY Change -15.5% 17.89%
Accrued Expenses $38.82M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt $0.00 $0.00
YoY Change
Long-Term Debt Due $615.0K $639.0K
YoY Change -3.76% 7.39%
Total Short-Term Liabilities $533.5M $646.3M
YoY Change -17.46% 23.2%
LONG-TERM LIABILITIES
Long-Term Debt $2.199B $2.115B
YoY Change 3.96% 17.33%
Other Long-Term Liabilities $122.8M $740.0K
YoY Change 16494.32% -98.58%
Total Long-Term Liabilities $2.199B $2.116B
YoY Change 3.93% 17.37%
TOTAL LIABILITIES
Total Short-Term Liabilities $533.5M $646.3M
Total Long-Term Liabilities $2.199B $2.116B
Total Liabilities $2.858B $2.859B
YoY Change -0.04% 20.17%
SHAREHOLDERS EQUITY
Retained Earnings -$548.2M -$1.075B
YoY Change -48.98% -25.93%
Common Stock $1.594M $1.733M
YoY Change -8.02% -5.2%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $3.607B $3.195B
YoY Change
Total Liabilities & Shareholders Equity $6.465B $6.054B
YoY Change 6.79% 14.36%

Cashflow Statement

Concept 2019 Q2 2018 Q2
OPERATING ACTIVITIES
Net Income $235.0M $111.3M
YoY Change 111.07% 5.08%
Depreciation, Depletion And Amortization $125.0M $121.9M
YoY Change 2.49% 48.23%
Cash From Operating Activities $160.0M $184.7M
YoY Change -13.37% 28.17%
INVESTING ACTIVITIES
Capital Expenditures -$267.4M -$279.9M
YoY Change -4.48% -1.58%
Acquisitions
YoY Change
Other Investing Activities $2.712M $226.2M
YoY Change -98.8% -1895.24%
Cash From Investing Activities -$264.7M -$53.60M
YoY Change 393.77% -81.95%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 107.4M -130.5M
YoY Change -182.33% -177.63%
NET CHANGE
Cash From Operating Activities 160.0M 184.7M
Cash From Investing Activities -264.7M -53.60M
Cash From Financing Activities 107.4M -130.5M
Net Change In Cash 2.781M 600.0K
YoY Change 363.5% -96.08%
FREE CASH FLOW
Cash From Operating Activities $160.0M $184.7M
Capital Expenditures -$267.4M -$279.9M
Free Cash Flow $427.4M $464.6M
YoY Change -8.01% 8.42%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
CY2019Q2 us-gaap Oil And Gas Joint Interest Billing Receivables Current
OilAndGasJointInterestBillingReceivablesCurrent
46645000 USD
dei Amendment Flag
AmendmentFlag
false
dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
Q2
dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2019
dei Document Period End Date
DocumentPeriodEndDate
2019-06-30
dei Entity Central Index Key
EntityCentralIndexKey
0000874499
CY2017Q1 gpor Site Contingency Numberof Siteswith Violation
SiteContingencyNumberofSiteswithViolation
1 violation
CY2019Q2 gpor Site Contingency Numberof Siteswith Violation
SiteContingencyNumberofSiteswithViolation
1 violation
gpor Testing Period Section382a
TestingPeriodSection382a
P3Y
CY2018Q4 us-gaap Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
2873037000 USD
CY2018Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2019Q2 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2018Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
200000000 shares
CY2019Q2 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
200000000 shares
CY2018Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
162986045 shares
CY2019Q2 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
159396017 shares
CY2018Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
162986045 shares
CY2019Q2 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
159396017 shares
CY2018Q2 us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
0 USD
CY2019Q2 us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
0 USD
CY2019Q2 us-gaap Lessee Operating Lease Renewal Term
LesseeOperatingLeaseRenewalTerm
P5Y
CY2018 us-gaap Preferred Stock Dividend Rate Percentage
PreferredStockDividendRatePercentage
0.12
us-gaap Preferred Stock Dividend Rate Percentage
PreferredStockDividendRatePercentage
0.12
CY2018Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.01
CY2019Q2 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.01
CY2018Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
5000000 shares
CY2019Q2 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
5000000 shares
CY2018Q4 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
0 shares
CY2019Q2 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
0 shares
CY2018Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
0 shares
CY2019Q2 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
0 shares
us-gaap Shares Paid For Tax Withholding For Share Based Compensation
SharesPaidForTaxWithholdingForShareBasedCompensation
100000 shares
CY2018Q4 us-gaap Temporary Equity Shares Authorized
TemporaryEquitySharesAuthorized
30000 shares
CY2019Q2 us-gaap Temporary Equity Shares Authorized
TemporaryEquitySharesAuthorized
30000 shares
dei Document Type
DocumentType
10-Q
dei Document Quarterly Report
DocumentQuarterlyReport
true
dei Document Transition Report
DocumentTransitionReport
false
dei Entity File Number
EntityFileNumber
000-19514
dei Entity Registrant Name
EntityRegistrantName
Gulfport Energy Corp
dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
DE
dei Entity Tax Identification Number
EntityTaxIdentificationNumber
73-1521290
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, par value $0.01 per share
dei Trading Symbol
TradingSymbol
GPOR
dei Security Exchange Name
SecurityExchangeName
NASDAQ
dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
dei Entity Small Business
EntitySmallBusiness
false
dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
dei Entity Shell Company
EntityShellCompany
false
CY2019Q3 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
159396017 shares
CY2019Q2 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
20777000 USD
CY2018Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
52297000 USD
CY2019Q2 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
131675000 USD
CY2018Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
210200000 USD
CY2019Q2 us-gaap Oil And Gas Joint Interest Billing Receivables Current
OilAndGasJointInterestBillingReceivablesCurrent
46645000 USD
CY2018Q4 us-gaap Oil And Gas Joint Interest Billing Receivables Current
OilAndGasJointInterestBillingReceivablesCurrent
22497000 USD
CY2019Q2 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
9474000 USD
CY2018Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
10607000 USD
CY2019Q2 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
134920000 USD
CY2018Q4 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
21352000 USD
CY2019Q2 us-gaap Assets Current
AssetsCurrent
343491000 USD
CY2018Q4 us-gaap Assets Current
AssetsCurrent
316953000 USD
CY2019Q2 us-gaap Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
10510427000 USD
CY2018Q4 us-gaap Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
10026836000 USD
CY2019Q2 us-gaap Property Plant And Equipment Other
PropertyPlantAndEquipmentOther
96413000 USD
CY2018Q4 us-gaap Property Plant And Equipment Other
PropertyPlantAndEquipmentOther
92667000 USD
CY2019Q2 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
4882729000 USD
CY2018Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
4640098000 USD
CY2019Q2 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
5724111000 USD
CY2018Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
5479405000 USD
CY2019Q2 us-gaap Equity Method Investments
EquityMethodInvestments
119307000 USD
CY2018Q4 us-gaap Equity Method Investments
EquityMethodInvestments
236121000 USD
CY2019Q2 us-gaap Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
5036000 USD
CY2018Q4 us-gaap Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
0 USD
CY2019Q2 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
179331000 USD
CY2018Q4 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
0 USD
CY2019Q2 us-gaap Inventory Noncurrent
InventoryNoncurrent
9001000 USD
CY2018Q4 us-gaap Inventory Noncurrent
InventoryNoncurrent
4754000 USD
CY2019Q2 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
19334000 USD
CY2019Q2 gpor Operating Lease Rightof Use Asset Related Parties
OperatingLeaseRightofUseAssetRelatedParties
53579000 USD
CY2019Q2 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
12280000 USD
CY2018Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
13803000 USD
CY2019Q2 gpor Total Other Assets
TotalOtherAssets
397868000 USD
CY2019Q2 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
17999000 USD
CY2018Q4 gpor Total Other Assets
TotalOtherAssets
254678000 USD
CY2019Q2 us-gaap Assets
Assets
6465470000 USD
CY2018Q4 us-gaap Assets
Assets
6051036000 USD
CY2019Q2 us-gaap Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
493830000 USD
CY2018Q4 us-gaap Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
518380000 USD
CY2019Q2 us-gaap Derivative Liabilities Current
DerivativeLiabilitiesCurrent
198000 USD
CY2018Q4 us-gaap Derivative Liabilities Current
DerivativeLiabilitiesCurrent
20401000 USD
CY2019Q2 gpor Operating Lease Liability Current Related Parties
OperatingLeaseLiabilityCurrentRelatedParties
20817000 USD
CY2019Q2 us-gaap Long Term Debt Current
LongTermDebtCurrent
615000 USD
CY2018Q4 us-gaap Long Term Debt Current
LongTermDebtCurrent
651000 USD
CY2019Q2 us-gaap Liabilities Current
LiabilitiesCurrent
533459000 USD
CY2018Q4 us-gaap Liabilities Current
LiabilitiesCurrent
539432000 USD
CY2019Q2 us-gaap Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
210000 USD
CY2018Q4 us-gaap Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
13992000 USD
CY2019Q2 us-gaap Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
88491000 USD
CY2018Q4 us-gaap Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
79952000 USD
CY2019Q2 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
3127000 USD
CY2018Q4 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
3127000 USD
CY2019Q2 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
1335000 USD
CY2019Q2 gpor Operating Lease Liability Noncurrent Related Parties
OperatingLeaseLiabilityNoncurrentRelatedParties
32762000 USD
CY2019Q2 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
2198678000 USD
CY2018Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
2086765000 USD
CY2019Q2 us-gaap Liabilities
Liabilities
2858062000 USD
CY2018Q4 us-gaap Liabilities
Liabilities
2723268000 USD
CY2019Q2 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
USD
CY2018Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
USD
CY2019Q2 us-gaap Preferred Stock Value
PreferredStockValue
0 USD
CY2018Q4 us-gaap Preferred Stock Value
PreferredStockValue
0 USD
CY2019Q2 us-gaap Common Stock Value
CommonStockValue
1594000 USD
CY2018Q4 us-gaap Common Stock Value
CommonStockValue
1630000 USD
CY2019Q2 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
4202599000 USD
CY2018Q4 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
4227532000 USD
CY2019Q2 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-48615000 USD
CY2018Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-56026000 USD
CY2019Q2 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-548170000 USD
CY2018Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-845368000 USD
CY2019Q2 us-gaap Stockholders Equity
StockholdersEquity
3607408000 USD
CY2018Q4 us-gaap Stockholders Equity
StockholdersEquity
3327768000 USD
CY2019Q2 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
6465470000 USD
CY2018Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
6051036000 USD
CY2019Q2 us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
171140000 USD
CY2018Q2 us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
-70545000 USD
us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
151095000 USD
us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
-87074000 USD
CY2019Q2 us-gaap Revenues
Revenues
458994000 USD
CY2018Q2 us-gaap Revenues
Revenues
252740000 USD
us-gaap Revenues
Revenues
779572000 USD
us-gaap Revenues
Revenues
578132000 USD
CY2019Q2 us-gaap Operating Lease Expense
OperatingLeaseExpense
22388000 USD
CY2018Q2 us-gaap Operating Lease Expense
OperatingLeaseExpense
22912000 USD
us-gaap Operating Lease Expense
OperatingLeaseExpense
42195000 USD
us-gaap Operating Lease Expense
OperatingLeaseExpense
41818000 USD
CY2019Q2 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
8098000 USD
CY2018Q2 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
7659000 USD
us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
16019000 USD
us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
14513000 USD
CY2019Q2 us-gaap Cost Of Revenue
CostOfRevenue
72015000 USD
CY2018Q2 us-gaap Cost Of Revenue
CostOfRevenue
71440000 USD
us-gaap Cost Of Revenue
CostOfRevenue
142297000 USD
us-gaap Cost Of Revenue
CostOfRevenue
135633000 USD
CY2019Q2 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
124951000 USD
CY2018Q2 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
121915000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
243384000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
232933000 USD
CY2019Q2 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
13265000 USD
CY2018Q2 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
14008000 USD
us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
24823000 USD
us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
27107000 USD
CY2019Q2 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
1359000 USD
CY2018Q2 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
1015000 USD
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
2426000 USD
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
2019000 USD
CY2019Q2 us-gaap Operating Expenses
OperatingExpenses
242076000 USD
CY2018Q2 us-gaap Operating Expenses
OperatingExpenses
238949000 USD
us-gaap Operating Expenses
OperatingExpenses
471144000 USD
us-gaap Operating Expenses
OperatingExpenses
454023000 USD
CY2019Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
216918000 USD
CY2018Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
13791000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
308428000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
124109000 USD
CY2019Q2 us-gaap Interest Expense
InterestExpense
34880000 USD
CY2018Q2 us-gaap Interest Expense
InterestExpense
33704000 USD
us-gaap Interest Expense
InterestExpense
69000000 USD
us-gaap Interest Expense
InterestExpense
67669000 USD
CY2019Q2 us-gaap Investment Income Interest
InvestmentIncomeInterest
159000 USD
CY2018Q2 us-gaap Investment Income Interest
InvestmentIncomeInterest
33000 USD
us-gaap Investment Income Interest
InvestmentIncomeInterest
311000 USD
us-gaap Investment Income Interest
InvestmentIncomeInterest
70000 USD
CY2019Q2 us-gaap Insurance Recoveries
InsuranceRecoveries
83000 USD
CY2018Q2 us-gaap Insurance Recoveries
InsuranceRecoveries
231000 USD
us-gaap Insurance Recoveries
InsuranceRecoveries
83000 USD
us-gaap Insurance Recoveries
InsuranceRecoveries
231000 USD
CY2019Q2 us-gaap Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
0 USD
CY2018Q2 us-gaap Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
122035000 USD
us-gaap Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
0 USD
us-gaap Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
122035000 USD
CY2019Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-125582000 USD
CY2018Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
8888000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-121309000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
22424000 USD
CY2019Q2 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
-1073000 USD
CY2018Q2 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
45000 USD
us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
-646000 USD
us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
140000 USD
CY2019Q2 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-161293000 USD
CY2018Q2 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
97528000 USD
us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-190561000 USD
us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
77231000 USD
CY2019Q2 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
55625000 USD
CY2018Q2 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
111319000 USD
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
117867000 USD
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
201340000 USD
CY2019Q2 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-179331000 USD
CY2018Q2 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
0 USD
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-179331000 USD
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-69000 USD
CY2019Q2 us-gaap Net Income Loss
NetIncomeLoss
234956000 USD
CY2018Q2 us-gaap Net Income Loss
NetIncomeLoss
111319000 USD
us-gaap Net Income Loss
NetIncomeLoss
297198000 USD
us-gaap Net Income Loss
NetIncomeLoss
201409000 USD
CY2019Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.47
CY2018Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.64
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.85
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.14
CY2019Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.47
CY2018Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.64
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.84
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.13
CY2019Q2 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
159324909 shares
CY2018Q2 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
173623630 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
161064787 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
177158230 shares
CY2019Q2 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
159506826 shares
CY2018Q2 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
174140627 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
161590087 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
177737282 shares
CY2019Q2 us-gaap Net Income Loss
NetIncomeLoss
234956000 USD
CY2018Q2 us-gaap Net Income Loss
NetIncomeLoss
111319000 USD
us-gaap Net Income Loss
NetIncomeLoss
297198000 USD
us-gaap Net Income Loss
NetIncomeLoss
201409000 USD
CY2019Q2 us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
3610000 USD
CY2018Q2 us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
-3364000 USD
us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
7411000 USD
us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
-8867000 USD
CY2019Q2 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
3610000 USD
CY2018Q2 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-3364000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
7411000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-8867000 USD
CY2019Q2 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
238566000 USD
CY2018Q2 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
107955000 USD
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
304609000 USD
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
192542000 USD
CY2018Q4 us-gaap Stockholders Equity
StockholdersEquity
3327768000 USD
CY2019Q1 us-gaap Net Income Loss
NetIncomeLoss
62242000 USD
CY2019Q1 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
3801000 USD
CY2019Q1 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
2785000 USD
CY2019Q1 us-gaap Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
28330000 USD
CY2019Q1 us-gaap Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures
StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
0 USD
CY2019Q1 us-gaap Stockholders Equity
StockholdersEquity
3368266000 USD
CY2019Q2 us-gaap Net Income Loss
NetIncomeLoss
234956000 USD
CY2019Q2 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
3610000 USD
CY2019Q2 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
2846000 USD
CY2019Q2 us-gaap Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
2270000 USD
CY2019Q2 us-gaap Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures
StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
0 USD
CY2019Q2 us-gaap Stockholders Equity
StockholdersEquity
3607408000 USD
CY2017Q4 us-gaap Stockholders Equity
StockholdersEquity
3101614000 USD
CY2018Q1 us-gaap Net Income Loss
NetIncomeLoss
90090000 USD
CY2018Q1 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-5503000 USD
CY2018Q1 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
2685000 USD
CY2018Q1 us-gaap Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
99997000 USD
CY2018Q1 us-gaap Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures
StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
0 USD
CY2018Q1 us-gaap Stockholders Equity
StockholdersEquity
3088889000 USD
CY2018Q2 us-gaap Net Income Loss
NetIncomeLoss
111319000 USD
CY2018Q2 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-3364000 USD
CY2018Q2 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
3355000 USD
CY2018Q2 us-gaap Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
5000000 USD
CY2018Q2 us-gaap Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures
StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
0 USD
CY2018Q2 us-gaap Stockholders Equity
StockholdersEquity
3195199000 USD
us-gaap Net Income Loss
NetIncomeLoss
297198000 USD
us-gaap Net Income Loss
NetIncomeLoss
201409000 USD
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
2426000 USD
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
2019000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
243384000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
232933000 USD
us-gaap Share Based Compensation
ShareBasedCompensation
3379000 USD
us-gaap Share Based Compensation
ShareBasedCompensation
3624000 USD
us-gaap Income Loss From Equity Method Investments Net Of Dividends Or Distributions
IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions
-121449000 USD
us-gaap Income Loss From Equity Method Investments Net Of Dividends Or Distributions
IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions
22322000 USD
us-gaap Unrealized Gain Loss On Derivatives And Commodity Contracts
UnrealizedGainLossOnDerivativesAndCommodityContracts
152589000 USD
us-gaap Unrealized Gain Loss On Derivatives And Commodity Contracts
UnrealizedGainLossOnDerivativesAndCommodityContracts
-102248000 USD
gpor Deferred Income Tax Expense Benefit Including Discontinued Operations
DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations
-179331000 USD
gpor Deferred Income Tax Expense Benefit Including Discontinued Operations
DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations
-69000 USD
us-gaap Amortization Of Financing Costs
AmortizationOfFinancingCosts
3191000 USD
us-gaap Amortization Of Financing Costs
AmortizationOfFinancingCosts
3006000 USD
gpor Equity Method Investment Realized Gain Losson Disposaland Other Assets
EquityMethodInvestmentRealizedGainLossonDisposalandOtherAssets
112000 USD
gpor Equity Method Investment Realized Gain Losson Disposaland Other Assets
EquityMethodInvestmentRealizedGainLossonDisposalandOtherAssets
122035000 USD
us-gaap Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
2457000 USD
us-gaap Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
0 USD
gpor Increase Decreasein Accounts Receivable Oiland Natural Gas
IncreaseDecreaseinAccountsReceivableOilandNaturalGas
-78525000 USD
gpor Increase Decreasein Accounts Receivable Oiland Natural Gas
IncreaseDecreaseinAccountsReceivableOilandNaturalGas
-6564000 USD
gpor Increase Decreasein Accounts Receivable Joint Operationsand Other
IncreaseDecreaseinAccountsReceivableJointOperationsandOther
24148000 USD
gpor Increase Decreasein Accounts Receivable Joint Operationsand Other
IncreaseDecreaseinAccountsReceivableJointOperationsandOther
16385000 USD
us-gaap Increase Decrease In Accounts Receivable Related Parties
IncreaseDecreaseInAccountsReceivableRelatedParties
0 USD
us-gaap Increase Decrease In Accounts Receivable Related Parties
IncreaseDecreaseInAccountsReceivableRelatedParties
110000 USD
us-gaap Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
-1133000 USD
us-gaap Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
5786000 USD
us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
296000 USD
us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
1517000 USD
us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
-87560000 USD
us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
28184000 USD
gpor Increase Decrease In Asset Retirement Obligation
IncreaseDecreaseInAssetRetirementObligation
-117000 USD
gpor Increase Decrease In Asset Retirement Obligation
IncreaseDecreaseInAssetRetirementObligation
-719000 USD
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
308989000 USD
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
411044000 USD
us-gaap Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
4298000 USD
us-gaap Payments To Acquire Other Property Plant And Equipment
PaymentsToAcquireOtherPropertyPlantAndEquipment
6252000 USD
us-gaap Payments To Acquire Oil And Gas Property
PaymentsToAcquireOilAndGasProperty
417535000 USD
us-gaap Payments To Acquire Oil And Gas Property
PaymentsToAcquireOilAndGasProperty
579734000 USD
us-gaap Proceeds From Sale Of Oil And Gas Property And Equipment
ProceedsFromSaleOfOilAndGasPropertyAndEquipment
745000 USD
us-gaap Proceeds From Sale Of Oil And Gas Property And Equipment
ProceedsFromSaleOfOilAndGasPropertyAndEquipment
3762000 USD
us-gaap Proceeds From Sale Of Other Property Plant And Equipment
ProceedsFromSaleOfOtherPropertyPlantAndEquipment
130000 USD
us-gaap Proceeds From Sale Of Other Property Plant And Equipment
ProceedsFromSaleOfOtherPropertyPlantAndEquipment
167000 USD
us-gaap Proceeds From Sale Of Equity Method Investments
ProceedsFromSaleOfEquityMethodInvestments
0 USD
us-gaap Proceeds From Sale Of Equity Method Investments
ProceedsFromSaleOfEquityMethodInvestments
221965000 USD
us-gaap Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
432000 USD
us-gaap Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
1569000 USD
us-gaap Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
1945000 USD
us-gaap Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
1196000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-419445000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-360465000 USD
us-gaap Repayments Of Debt
RepaymentsOfDebt
345350000 USD
us-gaap Repayments Of Debt
RepaymentsOfDebt
150285000 USD
us-gaap Proceeds From Long Term Lines Of Credit
ProceedsFromLongTermLinesOfCredit
455000000 USD
us-gaap Proceeds From Long Term Lines Of Credit
ProceedsFromLongTermLinesOfCredit
225000000 USD
us-gaap Payments Of Loan Costs
PaymentsOfLoanCosts
114000 USD
us-gaap Payments Of Loan Costs
PaymentsOfLoanCosts
624000 USD
us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
30600000 USD
us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
104997000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
78936000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-30906000 USD
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-31520000 USD
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
19673000 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
52297000 USD
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
99557000 USD
CY2019Q2 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
20777000 USD
CY2018Q2 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
119230000 USD
us-gaap Interest Paid Net
InterestPaidNet
67472000 USD
us-gaap Interest Paid Net
InterestPaidNet
59915000 USD
us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
-1794000 USD
gpor Capitalized Stock Based Compensation
CapitalizedStockBasedCompensation
2416000 USD
us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
0 USD
gpor Capitalized Stock Based Compensation
CapitalizedStockBasedCompensation
2252000 USD
gpor Asset Retirement Obligation Liabilities Incurred Including Revisionof Estimate
AssetRetirementObligationLiabilitiesIncurredIncludingRevisionofEstimate
6230000 USD
gpor Asset Retirement Obligation Liabilities Incurred Including Revisionof Estimate
AssetRetirementObligationLiabilitiesIncurredIncludingRevisionofEstimate
535000 USD
us-gaap Interest Costs Capitalized
InterestCostsCapitalized
1771000 USD
us-gaap Interest Costs Capitalized
InterestCostsCapitalized
2351000 USD
gpor Foreign Currency Translation Gain Loss On Investment In Equity Method Investment
ForeignCurrencyTranslationGainLossOnInvestmentInEquityMethodInvestment
7411000 USD
gpor Foreign Currency Translation Gain Loss On Investment In Equity Method Investment
ForeignCurrencyTranslationGainLossOnInvestmentInEquityMethodInvestment
-8867000 USD
CY2019Q2 us-gaap Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
10510427000 USD
CY2018Q4 us-gaap Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
10026836000 USD
CY2019Q2 us-gaap Furniture And Fixtures Gross
FurnitureAndFixturesGross
46327000 USD
CY2018Q4 us-gaap Furniture And Fixtures Gross
FurnitureAndFixturesGross
42581000 USD
CY2019Q2 us-gaap Buildings And Improvements Gross
BuildingsAndImprovementsGross
44565000 USD
CY2018Q4 us-gaap Buildings And Improvements Gross
BuildingsAndImprovementsGross
44565000 USD
CY2019Q2 us-gaap Land
Land
5521000 USD
CY2018Q4 us-gaap Land
Land
5521000 USD
CY2019Q2 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
10606840000 USD
CY2018Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
10119503000 USD
CY2019Q2 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
4882729000 USD
CY2018Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
4640098000 USD
CY2019Q2 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
5724111000 USD
CY2018Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
5479405000 USD
us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
0 USD
us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
0 USD
CY2019Q2 gpor Cumulative Capitalization Of General And Administrative Costs Incurred And Capitalized To Full Cost Pool
CumulativeCapitalizationOfGeneralAndAdministrativeCostsIncurredAndCapitalizedToFullCostPool
219800000 USD
CY2019Q2 gpor Capitalized General And Administrative Costs
CapitalizedGeneralAndAdministrativeCosts
8800000 USD
gpor Capitalized General And Administrative Costs
CapitalizedGeneralAndAdministrativeCosts
16500000 USD
CY2018Q2 gpor Capitalized General And Administrative Costs
CapitalizedGeneralAndAdministrativeCosts
9400000 USD
gpor Capitalized General And Administrative Costs
CapitalizedGeneralAndAdministrativeCosts
18200000 USD
gpor Depletionper Mc Fof Gas Equivalent
DepletionperMCFofGasEquivalent
1.00 usd_per_mcf
gpor Depletionper Mc Fof Gas Equivalent
DepletionperMCFofGasEquivalent
0.96 usd_per_mcf
CY2019Q2 us-gaap Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
2836441000 USD
CY2018Q4 us-gaap Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
2900000000 USD
CY2018Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
79952000 USD
CY2017Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
75100000 USD
us-gaap Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
5153000 USD
us-gaap Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
909000 USD
us-gaap Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
117000 USD
us-gaap Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
719000 USD
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
2426000 USD
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
2019000 USD
us-gaap Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
1077000 USD
us-gaap Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
-374000 USD
CY2019Q2 us-gaap Asset Retirement Obligation
AssetRetirementObligation
88491000 USD
CY2018Q2 us-gaap Asset Retirement Obligation
AssetRetirementObligation
76935000 USD
CY2019Q2 us-gaap Asset Retirement Obligation Current
AssetRetirementObligationCurrent
0 USD
CY2018Q2 us-gaap Asset Retirement Obligation Current
AssetRetirementObligationCurrent
120000 USD
CY2019Q2 us-gaap Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
88491000 USD
CY2018Q2 us-gaap Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
76815000 USD
CY2019Q2 us-gaap Equity Method Investments
EquityMethodInvestments
119307000 USD
CY2018Q4 us-gaap Equity Method Investments
EquityMethodInvestments
236121000 USD
CY2019Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-125582000 USD
CY2018Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
8888000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-121309000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
22424000 USD
CY2019Q2 us-gaap Equity Method Investment Summarized Financial Information Current Assets
EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets
477559000 USD
CY2018Q4 us-gaap Equity Method Investment Summarized Financial Information Current Assets
EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets
471733000 USD
CY2019Q2 us-gaap Equity Method Investment Summarized Financial Information Noncurrent Assets
EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets
1353113000 USD
CY2018Q4 us-gaap Equity Method Investment Summarized Financial Information Noncurrent Assets
EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets
1302488000 USD
CY2019Q2 us-gaap Equity Method Investment Summarized Financial Information Current Liabilities
EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities
167901000 USD
CY2018Q4 us-gaap Equity Method Investment Summarized Financial Information Current Liabilities
EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities
239975000 USD
CY2019Q2 us-gaap Equity Method Investment Summarized Financial Information Noncurrent Liabilities
EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities
190200000 USD
CY2018Q4 us-gaap Equity Method Investment Summarized Financial Information Noncurrent Liabilities
EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities
94575000 USD
CY2019Q2 us-gaap Equity Method Investment Summarized Financial Information Revenue
EquityMethodInvestmentSummarizedFinancialInformationRevenue
179114000 USD
CY2018Q2 us-gaap Equity Method Investment Summarized Financial Information Revenue
EquityMethodInvestmentSummarizedFinancialInformationRevenue
566404000 USD
us-gaap Equity Method Investment Summarized Financial Information Revenue
EquityMethodInvestmentSummarizedFinancialInformationRevenue
443958000 USD
us-gaap Equity Method Investment Summarized Financial Information Revenue
EquityMethodInvestmentSummarizedFinancialInformationRevenue
1067537000 USD
CY2019Q2 us-gaap Equity Method Investment Summarized Financial Information Net Income Loss
EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss
-4072000 USD
CY2018Q2 us-gaap Equity Method Investment Summarized Financial Information Net Income Loss
EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss
49018000 USD
us-gaap Equity Method Investment Summarized Financial Information Net Income Loss
EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss
20684000 USD
us-gaap Equity Method Investment Summarized Financial Information Net Income Loss
EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss
113470000 USD
CY2019Q2 us-gaap Deferred Finance Costs Net
DeferredFinanceCostsNet
28426000 USD
CY2018Q4 us-gaap Deferred Finance Costs Net
DeferredFinanceCostsNet
30733000 USD
CY2019Q2 us-gaap Long Term Debt Current
LongTermDebtCurrent
615000 USD
CY2018Q4 us-gaap Long Term Debt Current
LongTermDebtCurrent
651000 USD
CY2019Q2 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
2198678000 USD
CY2019Q2 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
159324909 shares
CY2019Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.47
CY2018Q2 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
111319000 USD
CY2018Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
2086765000 USD
CY2019Q2 gpor Interest Cost Capitalized Undeveloped Properties
InterestCostCapitalizedUndevelopedProperties
1000000.0 USD
gpor Interest Cost Capitalized Undeveloped Properties
InterestCostCapitalizedUndevelopedProperties
1800000 USD
CY2018Q2 gpor Interest Cost Capitalized Undeveloped Properties
InterestCostCapitalizedUndevelopedProperties
1500000 USD
gpor Interest Cost Capitalized Undeveloped Properties
InterestCostCapitalizedUndevelopedProperties
2400000 USD
CY2018Q1 us-gaap Stock Repurchase Program Authorized Amount1
StockRepurchaseProgramAuthorizedAmount1
100000000 USD
CY2018 gpor Stock Repurchasedand Retired During Period Value Net Of Tax
StockRepurchasedandRetiredDuringPeriodValueNetOfTax
200000000.0 USD
CY2019Q1 us-gaap Stock Repurchase Program Authorized Amount1
StockRepurchaseProgramAuthorizedAmount1
400000000 USD
CY2019Q1 us-gaap Stock Repurchase Program Period In Force1
StockRepurchaseProgramPeriodInForce1
P24M
CY2019Q2 us-gaap Shares Paid For Tax Withholding For Share Based Compensation
SharesPaidForTaxWithholdingForShareBasedCompensation
100000 shares
CY2019Q2 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
500000 USD
us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
600000 USD
CY2019Q2 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
2800000 USD
us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
5600000 USD
CY2019Q2 us-gaap Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
1100000 USD
us-gaap Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
2300000 USD
CY2018Q2 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
3300000 USD
us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
6000000.0 USD
CY2018Q2 us-gaap Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
1300000 USD
us-gaap Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
2400000 USD
CY2019Q2 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
234956000 USD
CY2018Q2 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
173623630 shares
CY2018Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.64
CY2019Q2 us-gaap Amount Of Dilutive Securities Stock Options And Restrictive Stock Units
AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits
0 USD
CY2019Q2 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
181917 shares
CY2018Q2 us-gaap Amount Of Dilutive Securities Stock Options And Restrictive Stock Units
AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits
0 USD
CY2018Q2 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
516997 shares
CY2019Q2 us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
234956000 USD
CY2019Q2 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
159506826 shares
CY2019Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.47
CY2018Q2 us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
111319000 USD
CY2018Q2 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
174140627 shares
CY2018Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.64
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
297198000 USD
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
161064787 shares
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.85
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
201409000 USD
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
177158230 shares
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.14
us-gaap Amount Of Dilutive Securities Stock Options And Restrictive Stock Units
AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits
0 USD
us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
525300 shares
us-gaap Amount Of Dilutive Securities Stock Options And Restrictive Stock Units
AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits
0 USD
us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
579052 shares
us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
297198000 USD
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
161590087 shares
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.84
us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
201409000 USD
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
177737282 shares
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.13
CY2019Q2 gpor Supply Commitment Remainderof Fiscal Year
SupplyCommitmentRemainderofFiscalYear
493000 MMBTU
CY2019Q2 gpor Supply Commitment Duein Year Two
SupplyCommitmentDueinYearTwo
276000 MMBTU
CY2019Q2 gpor Supply Commitment Duein Year Three
SupplyCommitmentDueinYearThree
179000 MMBTU
CY2019Q2 gpor Supply Commitment Duein Year Four
SupplyCommitmentDueinYearFour
70000 MMBTU
CY2019Q2 gpor Supply Commitment Duein Year Five
SupplyCommitmentDueinYearFive
42000 MMBTU
CY2019Q2 gpor Supply Commitment Due After Fifth Year
SupplyCommitmentDueAfterFifthYear
25000 MMBTU
CY2019Q2 gpor Supply Commitment Total
SupplyCommitmentTotal
1085000 MMBTU
CY2019Q2 us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
171140000 USD
CY2018Q2 us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
-70545000 USD
CY2019Q2 us-gaap Other Commitment Due In Next Twelve Months
OtherCommitmentDueInNextTwelveMonths
12000000 USD
CY2019Q2 us-gaap Other Commitment Due In Second Year
OtherCommitmentDueInSecondYear
24000000 USD
CY2019Q2 us-gaap Other Commitment Due In Third Year
OtherCommitmentDueInThirdYear
24000000 USD
CY2019Q2 us-gaap Other Commitment
OtherCommitment
60000000 USD
gpor Site Contingency Numberof Siteswith Violation
SiteContingencyNumberofSiteswithViolation
12 site
CY2013Q4 gpor Site Contingency Numberof Siteswith Violation
SiteContingencyNumberofSiteswithViolation
1 site
CY2019Q2 us-gaap Loss Contingency Accrual Carrying Value Current
LossContingencyAccrualCarryingValueCurrent
100000 USD
CY2019Q2 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
134920000 USD
CY2018Q4 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
21352000 USD
CY2019Q2 us-gaap Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
5036000 USD
CY2018Q4 us-gaap Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
0 USD
CY2019Q2 us-gaap Derivative Liabilities Current
DerivativeLiabilitiesCurrent
198000 USD
CY2018Q4 us-gaap Derivative Liabilities Current
DerivativeLiabilitiesCurrent
20401000 USD
CY2019Q2 us-gaap Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
210000 USD
CY2018Q4 us-gaap Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
13992000 USD
us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
151095000 USD
us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
-87074000 USD
CY2019Q2 us-gaap Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
139956000 USD
CY2019Q2 us-gaap Derivative Asset Not Offset Policy Election Deduction
DerivativeAssetNotOffsetPolicyElectionDeduction
408000 USD
CY2019Q2 us-gaap Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election
DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection
139548000 USD
CY2019Q2 us-gaap Derivative Fair Value Of Derivative Liability
DerivativeFairValueOfDerivativeLiability
408000 USD
CY2019Q2 us-gaap Derivative Liability Not Offset Policy Election Deduction
DerivativeLiabilityNotOffsetPolicyElectionDeduction
408000 USD
CY2019Q2 us-gaap Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election
DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection
0 USD
CY2018Q4 us-gaap Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
21352000 USD
CY2018Q4 us-gaap Derivative Asset Not Offset Policy Election Deduction
DerivativeAssetNotOffsetPolicyElectionDeduction
19289000 USD
CY2018Q4 us-gaap Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election
DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection
2063000 USD
CY2018Q4 us-gaap Derivative Fair Value Of Derivative Liability
DerivativeFairValueOfDerivativeLiability
34393000 USD
CY2018Q4 us-gaap Derivative Liability Not Offset Policy Election Deduction
DerivativeLiabilityNotOffsetPolicyElectionDeduction
19289000 USD
CY2018Q4 us-gaap Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election
DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection
15104000 USD
us-gaap Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
5200000 USD
CY2019Q2 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
131700000 USD
CY2018Q4 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
210200000 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.
CY2019Q2 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
27481000 USD
CY2019Q2 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
22731000 USD
CY2019Q2 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
115000 USD
CY2019Q2 us-gaap Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
25243000 USD
CY2019Q2 us-gaap Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
90000 USD
CY2019Q2 us-gaap Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
30000 USD
CY2019Q2 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
75690000 USD
CY2019Q2 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
2777000 USD
CY2019Q2 us-gaap Operating Lease Liability
OperatingLeaseLiability
72913000 USD
us-gaap Operating Lease Cost
OperatingLeaseCost
16284000 USD
gpor Operating Lease Cost Related Party
OperatingLeaseCostRelatedParty
11220000 USD
us-gaap Variable Lease Cost
VariableLeaseCost
960000 USD
gpor Variable Lease Cost Related Party
VariableLeaseCostRelatedParty
59611000 USD
us-gaap Short Term Lease Cost
ShortTermLeaseCost
183000 USD
us-gaap Lease Cost
LeaseCost
88258000 USD
us-gaap Operating Lease Payments
OperatingLeasePayments
120000 USD
us-gaap Operating Lease Payments Use
OperatingLeasePaymentsUse
12288000 USD
gpor Operating Lease Payments Use Related Party
OperatingLeasePaymentsUseRelatedParty
43925000 USD
CY2019Q2 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P1Y10M9D
CY2019Q2 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.0378
CY2019Q2 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
-3.225
us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
-1.522
CY2019Q2 us-gaap Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
179300000 USD
gpor Yearsof Cumulative Pretax Income
YearsofCumulativePretaxIncome
P3Y
CY2019Q2 us-gaap Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
207200000 USD
CY2019Q2 us-gaap Operating Loss Carryforwards Valuation Allowance
OperatingLossCarryforwardsValuationAllowance
27700000 USD
us-gaap Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
179300000 USD
CY2019Q2 us-gaap Deferred Tax Assets Operating Loss Carryforwards Foreign
DeferredTaxAssetsOperatingLossCarryforwardsForeign
4800000 USD
CY2019Q2 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
20777000 USD
CY2019Q2 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
131675000 USD
CY2019Q2 us-gaap Due From Affiliate Current
DueFromAffiliateCurrent
0 USD
CY2019Q2 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
9474000 USD
CY2019Q2 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
134920000 USD
CY2019Q2 us-gaap Assets Current
AssetsCurrent
343491000 USD
CY2019Q2 us-gaap Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
10510427000 USD
CY2019Q2 us-gaap Property Plant And Equipment Other
PropertyPlantAndEquipmentOther
96413000 USD
CY2019Q2 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
4882729000 USD
CY2019Q2 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
5724111000 USD
CY2019Q2 us-gaap Equity Method Investments
EquityMethodInvestments
119307000 USD
CY2019Q2 us-gaap Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
5036000 USD
CY2019Q2 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
179331000 USD
CY2019Q2 us-gaap Inventory Noncurrent
InventoryNoncurrent
9001000 USD
CY2019Q2 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
19334000 USD
CY2019Q2 gpor Operating Lease Rightof Use Asset Related Parties
OperatingLeaseRightofUseAssetRelatedParties
53579000 USD
CY2019Q2 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
12280000 USD
CY2019Q2 gpor Total Other Assets
TotalOtherAssets
397868000 USD
CY2019Q2 us-gaap Assets
Assets
6465470000 USD
CY2019Q2 us-gaap Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
493830000 USD
CY2019Q2 us-gaap Due To Affiliate Current
DueToAffiliateCurrent
0 USD
CY2019Q2 us-gaap Derivative Liabilities Current
DerivativeLiabilitiesCurrent
198000 USD
CY2019Q2 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
17999000 USD
CY2019Q2 gpor Operating Lease Liability Current Related Parties
OperatingLeaseLiabilityCurrentRelatedParties
20817000 USD
CY2019Q2 us-gaap Long Term Debt Current
LongTermDebtCurrent
615000 USD
CY2019Q2 us-gaap Liabilities Current
LiabilitiesCurrent
533459000 USD
CY2019Q2 us-gaap Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
210000 USD
CY2019Q2 us-gaap Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
88491000 USD
CY2019Q2 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
3127000 USD
CY2019Q2 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
1335000 USD
CY2019Q2 gpor Operating Lease Liability Noncurrent Related Parties
OperatingLeaseLiabilityNoncurrentRelatedParties
32762000 USD
CY2019Q2 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
2198678000 USD
CY2019Q2 us-gaap Liabilities
Liabilities
2858062000 USD
CY2019Q2 us-gaap Common Stock Value
CommonStockValue
1594000 USD
CY2019Q2 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
4202599000 USD
CY2019Q2 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-48615000 USD
CY2019Q2 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-548170000 USD
CY2019Q2 us-gaap Stockholders Equity
StockholdersEquity
3607408000 USD
CY2019Q2 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
6465470000 USD
CY2018Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
52297000 USD
CY2018Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
210200000 USD
CY2018Q4 us-gaap Oil And Gas Joint Interest Billing Receivables Current
OilAndGasJointInterestBillingReceivablesCurrent
22497000 USD
CY2018Q4 us-gaap Due From Affiliate Current
DueFromAffiliateCurrent
0 USD
CY2018Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
10607000 USD
CY2018Q4 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
21352000 USD
CY2018Q4 us-gaap Assets Current
AssetsCurrent
316953000 USD
CY2018Q4 us-gaap Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
10026836000 USD
CY2018Q4 us-gaap Property Plant And Equipment Other
PropertyPlantAndEquipmentOther
92667000 USD
CY2018Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
4640098000 USD
CY2018Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
5479405000 USD
CY2018Q4 us-gaap Equity Method Investments
EquityMethodInvestments
236121000 USD
CY2018Q4 us-gaap Inventory Noncurrent
InventoryNoncurrent
4754000 USD
CY2018Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
13803000 USD
CY2018Q4 gpor Total Other Assets
TotalOtherAssets
254678000 USD
CY2018Q4 us-gaap Assets
Assets
6051036000 USD
CY2018Q4 us-gaap Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
518380000 USD
CY2018Q4 us-gaap Due To Affiliate Current
DueToAffiliateCurrent
0 USD
CY2018Q4 us-gaap Derivative Liabilities Current
DerivativeLiabilitiesCurrent
20401000 USD
CY2018Q4 us-gaap Long Term Debt Current
LongTermDebtCurrent
651000 USD
CY2018Q4 us-gaap Liabilities Current
LiabilitiesCurrent
539432000 USD
CY2018Q4 us-gaap Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
13992000 USD
CY2018Q4 us-gaap Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
79952000 USD
CY2018Q4 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
3127000 USD
CY2018Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
2086765000 USD
CY2018Q4 us-gaap Liabilities
Liabilities
2723268000 USD
CY2018Q4 us-gaap Common Stock Value
CommonStockValue
1630000 USD
CY2018Q4 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
4227532000 USD
CY2018Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-56026000 USD
CY2018Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-845368000 USD
CY2018Q4 us-gaap Stockholders Equity
StockholdersEquity
3327768000 USD
CY2018Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
6051036000 USD
CY2019Q2 us-gaap Revenues
Revenues
458994000 USD
CY2019Q2 us-gaap Operating Lease Expense
OperatingLeaseExpense
22388000 USD
CY2019Q2 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
8098000 USD
CY2019Q2 us-gaap Cost Of Revenue
CostOfRevenue
72015000 USD
CY2019Q2 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
124951000 USD
CY2019Q2 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
13265000 USD
CY2019Q2 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
1359000 USD
CY2019Q2 us-gaap Operating Expenses
OperatingExpenses
242076000 USD
CY2019Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
216918000 USD
CY2019Q2 us-gaap Interest Expense
InterestExpense
34880000 USD
CY2018Q2 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
121915000 USD
CY2018Q2 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
0 USD
CY2019Q2 us-gaap Investment Income Interest
InvestmentIncomeInterest
159000 USD
CY2019Q2 us-gaap Insurance Recoveries
InsuranceRecoveries
83000 USD
CY2019Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-125582000 USD
CY2019Q2 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
-1073000 USD
CY2019Q2 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-161293000 USD
CY2019Q2 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
55625000 USD
CY2019Q2 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-179331000 USD
CY2019Q2 us-gaap Net Income Loss
NetIncomeLoss
234956000 USD
CY2018Q2 us-gaap Revenues
Revenues
252740000 USD
CY2018Q2 us-gaap Operating Lease Expense
OperatingLeaseExpense
22912000 USD
CY2018Q2 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
7659000 USD
CY2018Q2 us-gaap Cost Of Revenue
CostOfRevenue
71440000 USD
CY2018Q2 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
14008000 USD
CY2018Q2 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
1015000 USD
CY2018Q2 us-gaap Operating Expenses
OperatingExpenses
238949000 USD
CY2018Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
13791000 USD
CY2018Q2 us-gaap Interest Expense
InterestExpense
33704000 USD
CY2018Q2 us-gaap Investment Income Interest
InvestmentIncomeInterest
33000 USD
CY2018Q2 us-gaap Insurance Recoveries
InsuranceRecoveries
231000 USD
CY2018Q2 us-gaap Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
122035000 USD
CY2018Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
8888000 USD
CY2018Q2 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
45000 USD
CY2018Q2 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
97528000 USD
CY2018Q2 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
111319000 USD
CY2018Q2 us-gaap Net Income Loss
NetIncomeLoss
111319000 USD
us-gaap Revenues
Revenues
779572000 USD
us-gaap Operating Lease Expense
OperatingLeaseExpense
42195000 USD
us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
16019000 USD
us-gaap Cost Of Revenue
CostOfRevenue
142297000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
243384000 USD
us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
24823000 USD
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
2426000 USD
us-gaap Operating Expenses
OperatingExpenses
471144000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
308428000 USD
us-gaap Interest Expense
InterestExpense
69000000 USD
us-gaap Investment Income Interest
InvestmentIncomeInterest
311000 USD
us-gaap Insurance Recoveries
InsuranceRecoveries
83000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-121309000 USD
us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
-646000 USD
us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-190561000 USD
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
117867000 USD
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-179331000 USD
us-gaap Net Income Loss
NetIncomeLoss
297198000 USD
us-gaap Revenues
Revenues
578132000 USD
us-gaap Operating Lease Expense
OperatingLeaseExpense
41818000 USD
us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
14513000 USD
us-gaap Cost Of Revenue
CostOfRevenue
135633000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
232933000 USD
us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
27107000 USD
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
2019000 USD
us-gaap Operating Expenses
OperatingExpenses
454023000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
124109000 USD
us-gaap Interest Expense
InterestExpense
67669000 USD
us-gaap Investment Income Interest
InvestmentIncomeInterest
70000 USD
us-gaap Insurance Recoveries
InsuranceRecoveries
231000 USD
us-gaap Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
122035000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
22424000 USD
us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
140000 USD
us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
77231000 USD
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
201340000 USD
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-69000 USD
us-gaap Net Income Loss
NetIncomeLoss
201409000 USD
CY2019Q2 us-gaap Net Income Loss
NetIncomeLoss
234956000 USD
CY2019Q2 us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
3610000 USD
CY2019Q2 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
3610000 USD
CY2019Q2 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
238566000 USD
CY2018Q2 us-gaap Net Income Loss
NetIncomeLoss
111319000 USD
CY2018Q2 us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
-3364000 USD
CY2018Q2 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-3364000 USD
CY2018Q2 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
107955000 USD
us-gaap Net Income Loss
NetIncomeLoss
297198000 USD
us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
7411000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
7411000 USD
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
304609000 USD
us-gaap Net Income Loss
NetIncomeLoss
201409000 USD
us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
-8867000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-8867000 USD
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
192542000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-360465000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-30906000 USD
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
19673000 USD
CY2018Q4 us-gaap Business Combination Consideration Transferred1
BusinessCombinationConsiderationTransferred1
19700000 USD
CY2018Q4 us-gaap Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
9200000 USD
CY2018Q4 gpor Commodity Pricing Threshold Duration
CommodityPricingThresholdDuration
P2Y
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
308989000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-419445000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
78936000 USD
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-31520000 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
52297000 USD
CY2019Q2 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
20777000 USD
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
411044000 USD
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
99557000 USD
CY2018Q2 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
119230000 USD

Files In Submission

Name View Source Status
0001628280-19-009836-index-headers.html Edgar Link pending
0001628280-19-009836-index.html Edgar Link pending
0001628280-19-009836.txt Edgar Link pending
0001628280-19-009836-xbrl.zip Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
gpor-06302019x10xq.htm Edgar Link pending
gpor-06302019x10xq_htm.xml Edgar Link completed
gpor-06302019xex102.htm Edgar Link pending
gpor-06302019xex103.htm Edgar Link pending
gpor-06302019xex104.htm Edgar Link pending
gpor-06302019xex105.htm Edgar Link pending
gpor-06302019xex311.htm Edgar Link pending
gpor-06302019xex312.htm Edgar Link pending
gpor-06302019xex321.htm Edgar Link pending
gpor-06302019xex322.htm Edgar Link pending
gpor-20190630.xsd Edgar Link pending
gpor-20190630_cal.xml Edgar Link unprocessable
gpor-20190630_def.xml Edgar Link unprocessable
gpor-20190630_lab.xml Edgar Link unprocessable
gpor-20190630_pre.xml Edgar Link unprocessable
MetaLinks.json Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R56.htm Edgar Link pending
R57.htm Edgar Link pending
R58.htm Edgar Link pending
R59.htm Edgar Link pending
R6.htm Edgar Link pending
R60.htm Edgar Link pending
R61.htm Edgar Link pending
R62.htm Edgar Link pending
R63.htm Edgar Link pending
R64.htm Edgar Link pending
R65.htm Edgar Link pending
R66.htm Edgar Link pending
R67.htm Edgar Link pending
R68.htm Edgar Link pending
R69.htm Edgar Link pending
R7.htm Edgar Link pending
R70.htm Edgar Link pending
R8.htm Edgar Link pending
R9.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending