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  <xs:element id="gpor_BasisSwapRexZone3Remaining2026Member" abstract="true" name="BasisSwapRexZone3Remaining2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gpor_BasisSwapNGPLTXOKRemaining2026Member" abstract="true" name="BasisSwapNGPLTXOKRemaining2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gpor_BasisSwapTETCOM2Remaining2026Member" abstract="true" name="BasisSwapTETCOM2Remaining2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gpor_BasisSwapTranscoStation85Remaining2026Member" abstract="true" name="BasisSwapTranscoStation85Remaining2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gpor_BasisSwapTGP500Remaining2026Member" abstract="true" name="BasisSwapTGP500Remaining2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gpor_BasisSwapRexZone32027Member" abstract="true" name="BasisSwapRexZone32027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gpor_BasisSwapNGPLTXOK2027Member" abstract="true" name="BasisSwapNGPLTXOK2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gpor_BasisSwapTETCOM22027Member" abstract="true" name="BasisSwapTETCOM22027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gpor_CommodityDerivativeInstrumentsMember" abstract="true" name="CommodityDerivativeInstrumentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gpor_GainLossOnDerivativeInstrumentsFairValueNet" abstract="false" name="GainLossOnDerivativeInstrumentsFairValueNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gpor_GainLossOnDerivativeInstrumentsSettlementsNet" abstract="false" name="GainLossOnDerivativeInstrumentsSettlementsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gpor_ContingentConsiderationAssetFairValue" abstract="false" name="ContingentConsiderationAssetFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gpor_SwapsNYMEXWTI2027Member" abstract="true" name="SwapsNYMEXWTI2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gpor_SwapsNYMEXHenryHub2028Member" abstract="true" name="SwapsNYMEXHenryHub2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
