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  <xsd:element abstract="true" id="gpor_MidmarGasLlcMember" name="MidmarGasLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_MonroeCountyOhioMember" name="MonroeCountyOhioMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_MontBelvieuMember" name="MontBelvieuMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_MuskieProppantLLCMember" name="MuskieProppantLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NYMEXHenryHubMember" name="NYMEXHenryHubMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_NaturalGasLiquidsSales" name="NaturalGasLiquidsSales" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NiobraraMember" name="NiobraraMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NotesDue2023Member" name="NotesDue2023Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NovaScotiaAmegyKeybankMember" name="NovaScotiaAmegyKeybankMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NovemberTwoThousandSeventeenDecemberTwoThousandSeventeenMember" name="NovemberTwoThousandSeventeenDecemberTwoThousandSeventeenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NovemberTwoThousandSixteenDecemberTwoThousandSixteenMember" name="NovemberTwoThousandSixteenDecemberTwoThousandSixteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NovemberTwoThousandSixteenMarchTwoThousandSeventeenMember" name="NovemberTwoThousandSixteenMarchTwoThousandSeventeenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_NumberOfLocationsForProductiveWells" name="NumberOfLocationsForProductiveWells" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_NumberOfWellsPlugged" name="NumberOfWellsPlugged" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gpor_OctoberNotesMember" name="OctoberNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_OctoberTwoThousandSixteenMember" name="OctoberTwoThousandSixteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_OhioGatheringCompanyLLCandOhioCondensateCompanyLLCMember" name="OhioGatheringCompanyLLCandOhioCondensateCompanyLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_OilAndGasDeliveryCommitmentsAndContractsDailyProductionVolume" name="OilAndGasDeliveryCommitmentsAndContractsDailyProductionVolume" nillable="true" substitutionGroup="xbrli:item" type="num:volumeItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_OtherAssetsOther" name="OtherAssetsOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gpor_OtherPropertiesMember" name="OtherPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_PalomaPartnersIIILLCMember" name="PalomaPartnersIIILLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_PaymentsHeldForRestrictedCash" name="PaymentsHeldForRestrictedCash" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_PaymenttoAcquireOilandGasPropertyandEquipmentNet" name="PaymenttoAcquireOilandGasPropertyandEquipmentNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gpor_PluggingAndAbandonmentEscrowAccount" name="PluggingAndAbandonmentEscrowAccount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gpor_PositionMaturityAxis" name="PositionMaturityAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_PositionMaturityDomain" name="PositionMaturityDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_PrepaidDrillingCosts" name="PrepaidDrillingCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="gpor_ProceedsFromEscrowAccounts" name="ProceedsFromEscrowAccounts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_ProceedsfromIssuanceofBonds" name="ProceedsfromIssuanceofBonds" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_ProductiveOilAndGasWellsNumberOfWellsGross" name="ProductiveOilAndGasWellsNumberOfWellsGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_ProductiveOilAndGasWellsNumberOfWellsNet" name="ProductiveOilAndGasWellsNumberOfWellsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gpor_ProvedPropertiesMember" name="ProvedPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_PublicOfferingMember" name="PublicOfferingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_PurchasingRemainingPercentInterestInOilAndGasProperty" name="PurchasingRemainingPercentInterestInOilAndGasProperty" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_RefinancedBuildingLoanMember" name="RefinancedBuildingLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_RiceEnergyIncMember" name="RiceEnergyIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ScheduleOfEquityMethodInvestmentsBalanceSheetDisclosuresTableTextBlock" name="ScheduleOfEquityMethodInvestmentsBalanceSheetDisclosuresTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ScheduleOfEquityMethodInvestmentsIncomeStatementDisclosuresTableTextBlock" name="ScheduleOfEquityMethodInvestmentsIncomeStatementDisclosuresTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ScheduleofCondensedComprehensiveIncomeTableTextBlock" name="ScheduleofCondensedComprehensiveIncomeTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_SecondAmendmentofRestatedCreditAgreementMember" name="SecondAmendmentofRestatedCreditAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_SignificantPluggingCommitmentMinimumNumberOfWellsToBePlugged" name="SignificantPluggingCommitmentMinimumNumberOfWellsToBePlugged" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_SouthernLouisianaPropertiesMember" name="SouthernLouisianaPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_StingrayCementingLlcMember" name="StingrayCementingLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_StingrayEnergyServicesLlcMember" name="StingrayEnergyServicesLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_StrikeForceMidstreamLLCMember" name="StrikeForceMidstreamLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_SturgeonAcquisitionsLLCMember" name="SturgeonAcquisitionsLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_TatexThailandIiLlcMember" name="TatexThailandIiLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_TatexThailandIiiLlcMember" name="TatexThailandIiiLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_TenureOfMinimumWellsToBePlugged" name="TenureOfMinimumWellsToBePlugged" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_TetcoM2Member" name="TetcoM2Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_TimberWolfTerminalsLlcMember" name="TimberWolfTerminalsLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_TotalOtherAssets" name="TotalOtherAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gpor_UnevaluatedPropertiesMember" name="UnevaluatedPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_UticaMember" name="UticaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_VermillionParishMember" name="VermillionParishMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_WcbbMember" name="WcbbMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_WindsorMidstreamLlcMember" name="WindsorMidstreamLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
