<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://gulfportenergy.com/20161231" xmlns:gpor="http://gulfportenergy.com/20161231" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/us-gaap/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-roles-2016-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-types-2016-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2016-01-31" schemaLocation="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2016-01-31" schemaLocation="http://xbrl.sec.gov/currency/2016/currency-2016-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2016-01-31" schemaLocation="http://xbrl.sec.gov/exch/2016/exch-2016-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2011-01-31" schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gpor-20161231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gpor-20161231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gpor-20161231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gpor-20161231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="Acquisitions" roleURI="http://gulfportenergy.com/role/Acquisitions">
        <link:definition>2102100 - Disclosure - Acquisitions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionsDetails" roleURI="http://gulfportenergy.com/role/AcquisitionsDetails">
        <link:definition>2402402 - Disclosure - Acquisitions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionsFairValueOfAssetsAcquiredDetails" roleURI="http://gulfportenergy.com/role/AcquisitionsFairValueOfAssetsAcquiredDetails">
        <link:definition>2402403 - Disclosure - Acquisitions - Fair Value of Assets Acquired (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionsTables" roleURI="http://gulfportenergy.com/role/AcquisitionsTables">
        <link:definition>2302301 - Disclosure - Acquisitions (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Commitments" roleURI="http://gulfportenergy.com/role/Commitments">
        <link:definition>2119100 - Disclosure - Commitments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsNarrativeDetails" roleURI="http://gulfportenergy.com/role/CommitmentsNarrativeDetails">
        <link:definition>2419402 - Disclosure - Commitments - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsOtherCommitmentsNarrativeDetails" roleURI="http://gulfportenergy.com/role/CommitmentsOtherCommitmentsNarrativeDetails">
        <link:definition>2419407 - Disclosure - Commitments - Other Commitments Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsScheduleOfFirmSalesContractedWithThirdPartiesDetails" roleURI="http://gulfportenergy.com/role/CommitmentsScheduleOfFirmSalesContractedWithThirdPartiesDetails">
        <link:definition>2419403 - Disclosure - Commitments - Schedule of Firm Sales Contracted with Third Parties (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsScheduleOfFirmTransportationContractsDetails" roleURI="http://gulfportenergy.com/role/CommitmentsScheduleOfFirmTransportationContractsDetails">
        <link:definition>2419404 - Disclosure - Commitments - Schedule of Firm Transportation Contracts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsTableOfFutureMinimumLeaseCommitmentsDetails" roleURI="http://gulfportenergy.com/role/CommitmentsTableOfFutureMinimumLeaseCommitmentsDetails">
        <link:definition>2419405 - Disclosure - Commitments - Table of Future Minimum Lease Commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsTableOfRentalExpenseDetails" roleURI="http://gulfportenergy.com/role/CommitmentsTableOfRentalExpenseDetails">
        <link:definition>2419406 - Disclosure - Commitments - Table of Rental Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsTables" roleURI="http://gulfportenergy.com/role/CommitmentsTables">
        <link:definition>2319301 - Disclosure - Commitments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommonStockOptionsRestrictedStockAndChangesInCapitalization" roleURI="http://gulfportenergy.com/role/CommonStockOptionsRestrictedStockAndChangesInCapitalization">
        <link:definition>2109100 - Disclosure - Common Stock Options, Restricted Stock and Changes In Capitalization</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommonStockOptionsRestrictedStockAndChangesInCapitalizationNarrativeDetails" roleURI="http://gulfportenergy.com/role/CommonStockOptionsRestrictedStockAndChangesInCapitalizationNarrativeDetails">
        <link:definition>2409401 - Disclosure - Common Stock Options, Restricted Stock and Changes In Capitalization - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatingFinancialInformation" roleURI="http://gulfportenergy.com/role/CondensedConsolidatingFinancialInformation">
        <link:definition>2121100 - Disclosure - Condensed Consolidating Financial Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatingFinancialInformationCondensedConsolidatingBalanceSheetsDetails" roleURI="http://gulfportenergy.com/role/CondensedConsolidatingFinancialInformationCondensedConsolidatingBalanceSheetsDetails">
        <link:definition>2421403 - Disclosure - Condensed Consolidating Financial Information - Condensed Consolidating Balance Sheets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatingFinancialInformationCondensedConsolidatingStatementOfCashFlowsDetails" roleURI="http://gulfportenergy.com/role/CondensedConsolidatingFinancialInformationCondensedConsolidatingStatementOfCashFlowsDetails">
        <link:definition>2421406 - Disclosure - Condensed Consolidating Financial Information - Condensed Consolidating Statement of Cash Flows (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatingFinancialInformationCondensedConsolidatingStatementOfOperationsDetails" roleURI="http://gulfportenergy.com/role/CondensedConsolidatingFinancialInformationCondensedConsolidatingStatementOfOperationsDetails">
        <link:definition>2421404 - Disclosure - Condensed Consolidating Financial Information - Condensed Consolidating Statement of Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatingFinancialInformationCondensedConsolidatingStatementsOfComprehensiveIncomeLossDetails" roleURI="http://gulfportenergy.com/role/CondensedConsolidatingFinancialInformationCondensedConsolidatingStatementsOfComprehensiveIncomeLossDetails">
        <link:definition>2421405 - Disclosure - Condensed Consolidating Financial Information - Condensed Consolidating Statements of Comprehensive Income (Loss) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatingFinancialInformationNarrativeDetails" roleURI="http://gulfportenergy.com/role/CondensedConsolidatingFinancialInformationNarrativeDetails">
        <link:definition>2421402 - Disclosure - Condensed Consolidating Financial Information - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatingFinancialInformationTables" roleURI="http://gulfportenergy.com/role/CondensedConsolidatingFinancialInformationTables">
        <link:definition>2321301 - Disclosure - Condensed Consolidating Financial Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheets" roleURI="http://gulfportenergy.com/role/ConsolidatedBalanceSheets">
        <link:definition>1001000 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsParenthetical" roleURI="http://gulfportenergy.com/role/ConsolidatedBalanceSheetsParenthetical">
        <link:definition>1001501 - Statement - Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfCashFlows" roleURI="http://gulfportenergy.com/role/ConsolidatedStatementsOfCashFlows">
        <link:definition>1005000 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfComprehensiveLossIncome" roleURI="http://gulfportenergy.com/role/ConsolidatedStatementsOfComprehensiveLossIncome">
        <link:definition>1003000 - Statement - Consolidated Statements of Comprehensive (Loss) Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfOperations" roleURI="http://gulfportenergy.com/role/ConsolidatedStatementsOfOperations">
        <link:definition>1002000 - Statement - Consolidated Statements of Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfStockholdersEquity" roleURI="http://gulfportenergy.com/role/ConsolidatedStatementsOfStockholdersEquity">
        <link:definition>1004000 - Statement - Consolidated Statements of Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Contingencies" roleURI="http://gulfportenergy.com/role/Contingencies">
        <link:definition>2120100 - Disclosure - Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ContingenciesNarrativeDetails" roleURI="http://gulfportenergy.com/role/ContingenciesNarrativeDetails">
        <link:definition>2420401 - Disclosure - Contingencies - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeInstruments" roleURI="http://gulfportenergy.com/role/DerivativeInstruments">
        <link:definition>2115100 - Disclosure - Derivative Instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeInstrumentsGainLossOnDerivativeInstrumentsDetails" roleURI="http://gulfportenergy.com/role/DerivativeInstrumentsGainLossOnDerivativeInstrumentsDetails">
        <link:definition>2415405 - Disclosure - Derivative Instruments - Gain (Loss) on Derivative Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeInstrumentsNarrativeDetails" roleURI="http://gulfportenergy.com/role/DerivativeInstrumentsNarrativeDetails">
        <link:definition>2415402 - Disclosure - Derivative Instruments - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeInstrumentsScheduleOfDerivativeInstrumentsDetails" roleURI="http://gulfportenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsDetails">
        <link:definition>2415403 - Disclosure - Derivative Instruments - Schedule of Derivative Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeInstrumentsScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionDetails" roleURI="http://gulfportenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionDetails">
        <link:definition>2415404 - Disclosure - Derivative Instruments - Schedule of Derivative Instruments in Statement of Financial Position (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeInstrumentsScheduleOfOffsettingDetails" roleURI="http://gulfportenergy.com/role/DerivativeInstrumentsScheduleOfOffsettingDetails">
        <link:definition>2415406 - Disclosure - Derivative Instruments - Schedule of Offsetting (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeInstrumentsTables" roleURI="http://gulfportenergy.com/role/DerivativeInstrumentsTables">
        <link:definition>2315301 - Disclosure - Derivative Instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DocumentAndEntityInformation" roleURI="http://gulfportenergy.com/role/DocumentAndEntityInformation">
        <link:definition>0001000 - Document - Document And Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShare" roleURI="http://gulfportenergy.com/role/EarningsPerShare">
        <link:definition>2113100 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareScheduleOfEarningsPerShareReconciliationDetails" roleURI="http://gulfportenergy.com/role/EarningsPerShareScheduleOfEarningsPerShareReconciliationDetails">
        <link:definition>2413402 - Disclosure - Earnings Per Share - Schedule Of Earnings Per Share Reconciliation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareTables" roleURI="http://gulfportenergy.com/role/EarningsPerShareTables">
        <link:definition>2313301 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityInvestments" roleURI="http://gulfportenergy.com/role/EquityInvestments">
        <link:definition>2105100 - Disclosure - Equity Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityInvestmentsEquityInvestmentIncomeStatementDisclosureDetails" roleURI="http://gulfportenergy.com/role/EquityInvestmentsEquityInvestmentIncomeStatementDisclosureDetails">
        <link:definition>2405404 - Disclosure - Equity Investments - Equity Investment Income Statement Disclosure (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityInvestmentsEquityInvestmentsBalanceSheetDisclosureDetails" roleURI="http://gulfportenergy.com/role/EquityInvestmentsEquityInvestmentsBalanceSheetDisclosureDetails">
        <link:definition>2405403 - Disclosure - Equity Investments - Equity Investments Balance Sheet Disclosure (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityInvestmentsEquityInvestmentsNarrativeDetails" roleURI="http://gulfportenergy.com/role/EquityInvestmentsEquityInvestmentsNarrativeDetails">
        <link:definition>2405405 - Disclosure - Equity Investments Equity Investments - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityInvestmentsInvestmentsAccountedForByEquityMethodDetails" roleURI="http://gulfportenergy.com/role/EquityInvestmentsInvestmentsAccountedForByEquityMethodDetails">
        <link:definition>2405402 - Disclosure - Equity Investments - Investments Accounted for by the Equity Method (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityInvestmentsTables" roleURI="http://gulfportenergy.com/role/EquityInvestmentsTables">
        <link:definition>2305301 - Disclosure - Equity Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://gulfportenergy.com/role/FairValueMeasurements">
        <link:definition>2117100 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsNarrativeDetails" roleURI="http://gulfportenergy.com/role/FairValueMeasurementsNarrativeDetails">
        <link:definition>2417403 - Disclosure - Fair Value Measurements - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsSummaryOfFinancialAndNonFinancialLiabilitiesDetails" roleURI="http://gulfportenergy.com/role/FairValueMeasurementsSummaryOfFinancialAndNonFinancialLiabilitiesDetails">
        <link:definition>2417402 - Disclosure - Fair Value Measurements - Summary of Financial and Non-Financial Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://gulfportenergy.com/role/FairValueMeasurementsTables">
        <link:definition>2317301 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueOfFinancialInstruments" roleURI="http://gulfportenergy.com/role/FairValueOfFinancialInstruments">
        <link:definition>2111100 - Disclosure - Fair Value of Financial Instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueOfFinancialInstrumentsDetails" roleURI="http://gulfportenergy.com/role/FairValueOfFinancialInstrumentsDetails">
        <link:definition>2411401 - Disclosure - Fair Value of Financial Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://gulfportenergy.com/role/IncomeTaxes">
        <link:definition>2112100 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesIncomeTaxesScheduleOfComponentsOfIncomeTaxExpenseBenefitDetails" roleURI="http://gulfportenergy.com/role/IncomeTaxesIncomeTaxesScheduleOfComponentsOfIncomeTaxExpenseBenefitDetails">
        <link:definition>2412402 - Disclosure - Income Taxes Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNarrativeDetails" roleURI="http://gulfportenergy.com/role/IncomeTaxesNarrativeDetails">
        <link:definition>2412405 - Disclosure - Income Taxes - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesReconciliationOfStatutoryFederalIncomeTaxAmountDetails" roleURI="http://gulfportenergy.com/role/IncomeTaxesReconciliationOfStatutoryFederalIncomeTaxAmountDetails">
        <link:definition>2412403 - Disclosure - Income Taxes - Reconciliation of Statutory Federal Income Tax Amount (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" roleURI="http://gulfportenergy.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails">
        <link:definition>2412404 - Disclosure - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://gulfportenergy.com/role/IncomeTaxesTables">
        <link:definition>2312301 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebt" roleURI="http://gulfportenergy.com/role/LongTermDebt">
        <link:definition>2108100 - Disclosure - Long-Term Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtBreakDownOfLongTermDebtDetails" roleURI="http://gulfportenergy.com/role/LongTermDebtBreakDownOfLongTermDebtDetails">
        <link:definition>2408402 - Disclosure - Long-Term Debt - Break-Down Of Long-Term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtMaturitiesOfLongTermDebtDetails" roleURI="http://gulfportenergy.com/role/LongTermDebtMaturitiesOfLongTermDebtDetails">
        <link:definition>2408403 - Disclosure - Long-Term Debt - Maturities of Long-Term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtNarrativeDetails" roleURI="http://gulfportenergy.com/role/LongTermDebtNarrativeDetails">
        <link:definition>2408404 - Disclosure - Long-Term Debt - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtTables" roleURI="http://gulfportenergy.com/role/LongTermDebtTables">
        <link:definition>2308301 - Disclosure - Long-Term Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtTotalInterestExpenseDetails" roleURI="http://gulfportenergy.com/role/LongTermDebtTotalInterestExpenseDetails">
        <link:definition>2408405 - Disclosure - Long-Term Debt - Total Interest Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipment" roleURI="http://gulfportenergy.com/role/PropertyAndEquipment">
        <link:definition>2104100 - Disclosure - Property and Equipment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNarrativeDetails" roleURI="http://gulfportenergy.com/role/PropertyAndEquipmentNarrativeDetails">
        <link:definition>2404403 - Disclosure - Property and Equipment - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentScheduleOfAssetRetirementObligationDetails" roleURI="http://gulfportenergy.com/role/PropertyAndEquipmentScheduleOfAssetRetirementObligationDetails">
        <link:definition>2404405 - Disclosure - Property and Equipment - Schedule of Asset Retirement Obligation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails" roleURI="http://gulfportenergy.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails">
        <link:definition>2404402 - Disclosure - Property and Equipment - Schedule of Property and Equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentSummaryOfOilAndGasPropertiesNotSubjectToAmortizationDetails" roleURI="http://gulfportenergy.com/role/PropertyAndEquipmentSummaryOfOilAndGasPropertiesNotSubjectToAmortizationDetails">
        <link:definition>2404404 - Disclosure - Property and Equipment - Summary of Oil and Gas Properties Not Subject to Amortization (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentTables" roleURI="http://gulfportenergy.com/role/PropertyAndEquipmentTables">
        <link:definition>2304301 - Disclosure - Property and Equipment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactions" roleURI="http://gulfportenergy.com/role/RelatedPartyTransactions">
        <link:definition>2118100 - Disclosure - Related Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsNarrativeDetails" roleURI="http://gulfportenergy.com/role/RelatedPartyTransactionsNarrativeDetails">
        <link:definition>2418401 - Disclosure - Related Party Transactions - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SelectedQuarterlyFinancialDataUnaudited" roleURI="http://gulfportenergy.com/role/SelectedQuarterlyFinancialDataUnaudited">
        <link:definition>2123100 - Disclosure - Selected Quarterly Financial Data (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SelectedQuarterlyFinancialDataUnauditedScheduleOfSelectedQuarterlyFinancialDataDetails" roleURI="http://gulfportenergy.com/role/SelectedQuarterlyFinancialDataUnauditedScheduleOfSelectedQuarterlyFinancialDataDetails">
        <link:definition>2423402 - Disclosure - Selected Quarterly Financial Data (Unaudited) - Schedule of Selected Quarterly Financial Data (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SelectedQuarterlyFinancialDataUnauditedTables" roleURI="http://gulfportenergy.com/role/SelectedQuarterlyFinancialDataUnauditedTables">
        <link:definition>2323301 - Disclosure - Selected Quarterly Financial Data (Unaudited) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensation" roleURI="http://gulfportenergy.com/role/StockBasedCompensation">
        <link:definition>2110100 - Disclosure - Stock-Based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationNarrativeDetails" roleURI="http://gulfportenergy.com/role/StockBasedCompensationNarrativeDetails">
        <link:definition>2410402 - Disclosure - Stock-Based Compensation - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryOfRestrictedStockAwardAndUnitActivityDetails" roleURI="http://gulfportenergy.com/role/StockBasedCompensationSummaryOfRestrictedStockAwardAndUnitActivityDetails">
        <link:definition>2410404 - Disclosure - Stock-Based Compensation - Summary of Restricted Stock Award and Unit Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationSummaryOfStockOptionActivityDetails" roleURI="http://gulfportenergy.com/role/StockBasedCompensationSummaryOfStockOptionActivityDetails">
        <link:definition>2410403 - Disclosure - Stock-Based Compensation - Summary of Stock Option Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationTables" roleURI="http://gulfportenergy.com/role/StockBasedCompensationTables">
        <link:definition>2310301 - Disclosure - Stock-Based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEvents" roleURI="http://gulfportenergy.com/role/SubsequentEvents">
        <link:definition>2124100 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEventsNarrativeDetails" roleURI="http://gulfportenergy.com/role/SubsequentEventsNarrativeDetails">
        <link:definition>2424401 - Disclosure - Subsequent Events - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPolicies" roleURI="http://gulfportenergy.com/role/SummaryOfSignificantAccountingPolicies">
        <link:definition>2101100 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesAccountingForStockBasedCompensationDetails" roleURI="http://gulfportenergy.com/role/SummaryOfSignificantAccountingPoliciesAccountingForStockBasedCompensationDetails">
        <link:definition>2401404 - Disclosure - Summary of Significant Accounting Policies - Accounting for Stock-Based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesNarrativeDetails" roleURI="http://gulfportenergy.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails">
        <link:definition>2401403 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesPolicies" roleURI="http://gulfportenergy.com/role/SummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>2201201 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesTables" roleURI="http://gulfportenergy.com/role/SummaryOfSignificantAccountingPoliciesTables">
        <link:definition>2301302 - Disclosure - Summary of Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnaudited" roleURI="http://gulfportenergy.com/role/SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnaudited">
        <link:definition>2122100 - Disclosure - Supplemental Information on Oil and Gas Exploration and Production Activities (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedCapitalizedCostsRelatedToOilAndGasProducingActivitiesDetails" roleURI="http://gulfportenergy.com/role/SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedCapitalizedCostsRelatedToOilAndGasProducingActivitiesDetails">
        <link:definition>2422403 - Disclosure - Supplemental Information on Oil and Gas Exploration and Production Activities (Unaudited) - Capitalized Costs Related to Oil and Gas Producing Activities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedChangesInStandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesDetails" roleURI="http://gulfportenergy.com/role/SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedChangesInStandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesDetails">
        <link:definition>2422408 - Disclosure - Supplemental Information on Oil and Gas Exploration and Production Activities (Unaudited) - Changes in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedCostsIncurredInOilAndGasPropertyAcquisitionAndDevelopmentActivitiesDetails" roleURI="http://gulfportenergy.com/role/SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedCostsIncurredInOilAndGasPropertyAcquisitionAndDevelopmentActivitiesDetails">
        <link:definition>2422404 - Disclosure - Supplemental Information on Oil and Gas Exploration and Production Activities (Unaudited) - Costs Incurred In Oil and Gas Property Acquisition and Development Activities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedOilAndGasReservesDetails" roleURI="http://gulfportenergy.com/role/SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedOilAndGasReservesDetails">
        <link:definition>2422406 - Disclosure - Supplemental Information on Oil and Gas Exploration and Production Activities (Unaudited) - Oil and Gas Reserves (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedResultsOfOperationsForProducingActivitiesDetails" roleURI="http://gulfportenergy.com/role/SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedResultsOfOperationsForProducingActivitiesDetails">
        <link:definition>2422405 - Disclosure - Supplemental Information on Oil and Gas Exploration and Production Activities (Unaudited) - Results of Operations for Producing Activities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedStandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesDetails" roleURI="http://gulfportenergy.com/role/SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedStandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesDetails">
        <link:definition>2422407 - Disclosure - Supplemental Information on Oil and Gas Exploration and Production Activities (Unaudited) - Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedSupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedNarrativeDetails" roleURI="http://gulfportenergy.com/role/SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedSupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedNarrativeDetails">
        <link:definition>2422402 - Disclosure - Supplemental Information on Oil and Gas Exploration and Production Activities (Unaudited) Supplemental Information on Oil and Gas Exploration and Production Activities (Unaudited) - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedTables" roleURI="http://gulfportenergy.com/role/SupplementalInformationOnOilAndGasExplorationAndProductionActivitiesUnauditedTables">
        <link:definition>2322301 - Disclosure - Supplemental Information on Oil and Gas Exploration and Production Activities (Unaudited) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="VariableInterestEntities" roleURI="http://gulfportenergy.com/role/VariableInterestEntities">
        <link:definition>2107100 - Disclosure - Variable Interest Entities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="gpor_A6.000SeniorNotesMember" name="A6.000SeniorNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_A6.375SeniorNotesMember" name="A6.375SeniorNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_A6.625SeniorNotesMember" name="A6.625SeniorNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_A7.75SeniorNotesMember" name="A7.75SeniorNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ARGUSLLSMember" name="ARGUSLLSMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_AccountsReceivableCollectionPeriod" name="AccountsReceivableCollectionPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_AmendedAndRestatedCreditAgreementMember" name="AmendedAndRestatedCreditAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_AmericanEnergyUticaLLCMember" name="AmericanEnergyUticaLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_AnteroResourcesMember" name="AnteroResourcesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_AnticipatedTimingOfInclusionOfCostsInAmortizationCalculationPeriod" name="AnticipatedTimingOfInclusionOfCostsInAmortizationCalculationPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ApicoLlcMember" name="ApicoLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_AugustNotesMember" name="AugustNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_BakkenPropertiesMember" name="BakkenPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_BelmontAndJeffersonCountiesOhioMember" name="BelmontAndJeffersonCountiesOhioMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_BisonDrillingAndFieldServicesLlcMember" name="BisonDrillingAndFieldServicesLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_BlackhawkMidstreamLlcMember" name="BlackhawkMidstreamLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_BritishPetroleumMember" name="BritishPetroleumMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_BuildingLoansMember" name="BuildingLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_CapitalizedGeneralAndAdministrativeCosts" name="CapitalizedGeneralAndAdministrativeCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_CapitalizedStockBasedCompensation" name="CapitalizedStockBasedCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gpor_ChangeInProductionRatesAndOther" name="ChangeInProductionRatesAndOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_ChangesInStandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTableTextBlock" name="ChangesInStandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ChangesInStandardizedMeasureofDiscontinuedFutureNetCashFlowsLineItems" name="ChangesInStandardizedMeasureofDiscontinuedFutureNetCashFlowsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ChangesInStandardizedMeasureofDiscontinuedFutureNetCashFlowsTable" name="ChangesInStandardizedMeasureofDiscontinuedFutureNetCashFlowsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_CommitmentsLineItems" name="CommitmentsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_CommitmentsTable" name="CommitmentsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ConcentrationRiskNumberofPurchasers" name="ConcentrationRiskNumberofPurchasers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ConversionRatioGasToBarrelsOfOil" name="ConversionRatioGasToBarrelsOfOil" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_CoronadoMidstreamLLCMember" name="CoronadoMidstreamLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_CostsIncurredRecompletionsOfOilAndGasProperties" name="CostsIncurredRecompletionsOfOilAndGasProperties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_CumulativeCapitalizationOfGeneralAndAdministrativeCostsIncurredAndCapitalizedToFullCostPool" name="CumulativeCapitalizationOfGeneralAndAdministrativeCostsIncurredAndCapitalizedToFullCostPool" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gpor_DTEEnergyTradingIncMember" name="DTEEnergyTradingIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_DebtInstrumentBasisSpreadonVariableRateIncreaseDecreaseDuringPeriod" name="DebtInstrumentBasisSpreadonVariableRateIncreaseDecreaseDuringPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_DebtInstrumentCovenantComplianceEarningsBeforeIncomeTaxDepreciationDepletionAmortizationAndExplorationExpensesRatio" name="DebtInstrumentCovenantComplianceEarningsBeforeIncomeTaxDepreciationDepletionAmortizationAndExplorationExpensesRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_DebtInstrumentCovenantComplianceFutureEarningsBeforeIncomeTaxDepreciationDepletionAmortizationandExplorationExpensesRatio" name="DebtInstrumentCovenantComplianceFutureEarningsBeforeIncomeTaxDepreciationDepletionAmortizationandExplorationExpensesRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_DebtInstrumentDebtRepurchaseAmountTendered" name="DebtInstrumentDebtRepurchaseAmountTendered" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="gpor_DebtInstrumentDiscountIssuePricePercentage" name="DebtInstrumentDiscountIssuePricePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_DebtInstrumentDispositionCostsMaximumExpensesAllowed" name="DebtInstrumentDispositionCostsMaximumExpensesAllowed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_DebtInstrumentIncreaseDecreaseAccruedInterest" name="DebtInstrumentIncreaseDecreaseAccruedInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_DebtInstrumentPremiumIssuePricePercentage" name="DebtInstrumentPremiumIssuePricePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gpor_DecemberNotesMember" name="DecemberNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations" name="DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_DeferredTaxAssetOilandGasPropertyBasisDifference" name="DeferredTaxAssetOilandGasPropertyBasisDifference" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="gpor_DeferredTaxLiabilitiesNonoilAndGasPropertyBasisDifference" name="DeferredTaxLiabilitiesNonoilAndGasPropertyBasisDifference" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="gpor_DeferredTaxLiabilityOilAndGasPropertyBasisDifference" name="DeferredTaxLiabilityOilAndGasPropertyBasisDifference" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="gpor_DepletionperMCFofGasEquivalent" name="DepletionperMCFofGasEquivalent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_DevelopmentWellsDrilledProductiveandNonProductive" name="DevelopmentWellsDrilledProductiveandNonProductive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_DiamondbackEnergyIncMember" name="DiamondbackEnergyIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_DiamondbackMember" name="DiamondbackMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionTaxes" name="DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gpor_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_EffectiveIncomeTaxRateReconciliationIntraperiodTaxAllocation" name="EffectiveIncomeTaxRateReconciliationIntraperiodTaxAllocation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_EmploymentAgreementNoticePeriodAllowedForTermination" name="EmploymentAgreementNoticePeriodAllowedForTermination" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_EmploymentAgreementSubsequentExtension" name="EmploymentAgreementSubsequentExtension" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_EmploymentAgreementTerm" name="EmploymentAgreementTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_EquityMethodInvestmentAmountofCashCallsBasedonProportionateOwnershipInterest" name="EquityMethodInvestmentAmountofCashCallsBasedonProportionateOwnershipInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gpor_EquityMethodInvestmentSharesOwned" name="EquityMethodInvestmentSharesOwned" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_EquityMethodInvestmentsIncreaseDecreaseDueToForeignCurrencyTranslationAdjustment" name="EquityMethodInvestmentsIncreaseDecreaseDueToForeignCurrencyTranslationAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gpor_EquityMethodInvestmentsNumberofInvestmentsContributedforOwnershipInterest" name="EquityMethodInvestmentsNumberofInvestmentsContributedforOwnershipInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_FederalFundsRateMember" name="FederalFundsRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_FixedPriceSwap2017Member" name="FixedPriceSwap2017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_FixedPriceSwap2018Member" name="FixedPriceSwap2018Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_FixedPriceSwap2019Member" name="FixedPriceSwap2019Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ForeignCurrencyTranslationGainLossOnInvestmentInEquityMethodInvestment" name="ForeignCurrencyTranslationGainLossOnInvestmentInEquityMethodInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gpor_FullCostMethodofAccountingforInvestmentsinOilandGasPropertiesPolicyTextBlock" name="FullCostMethodofAccountingforInvestmentsinOilandGasPropertiesPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_FutureDevelopmentCostsEstimatedToBeSpentInYearOne" name="FutureDevelopmentCostsEstimatedToBeSpentInYearOne" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_FutureDevelopmentCostsEstimatedToBeSpentInYearThree" name="FutureDevelopmentCostsEstimatedToBeSpentInYearThree" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gpor_FutureDevelopmentCostsEstimatedToBeSpentInYearTwo" name="FutureDevelopmentCostsEstimatedToBeSpentInYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gpor_GainLossonExtinguishmentofDebtNet" name="GainLossonExtinguishmentofDebtNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="gpor_GasAndOilAreaGross" name="GasAndOilAreaGross" nillable="true" substitutionGroup="xbrli:item" type="num:areaItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_GasAndOilAreaGrossAndNet" name="GasAndOilAreaGrossAndNet" nillable="true" substitutionGroup="xbrli:item" type="num:areaItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_GasAndOilAreaNet" name="GasAndOilAreaNet" nillable="true" substitutionGroup="xbrli:item" type="num:areaItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_GasAndOilAreaReserve" name="GasAndOilAreaReserve" nillable="true" substitutionGroup="xbrli:item" type="num:areaItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_GasGatheringTransportationLength" name="GasGatheringTransportationLength" nillable="true" substitutionGroup="xbrli:item" type="num:lengthItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gpor_GasMember" name="GasMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_GasSales" name="GasSales" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_GrizzlyOilSandsUlcMember" name="GrizzlyOilSandsUlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_HessMember" name="HessMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ImprovedPerformanceMember" name="ImprovedPerformanceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_IncomeFromEquityMethodInvestmentsMember" name="IncomeFromEquityMethodInvestmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_IncreaseDecreaseInAssetRetirementObligation" name="IncreaseDecreaseInAssetRetirementObligation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_InterBankMember" name="InterBankMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_InterestCostCapitalizedNotSubjecttoAmortization" name="InterestCostCapitalizedNotSubjecttoAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_InterestIncomeNoteReceivable" name="InterestIncomeNoteReceivable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_JanuaryTwoThousandSeventeenDecemberTwoThousandSeventeenMember" name="JanuaryTwoThousandSeventeenDecemberTwoThousandSeventeenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_JudicialDistrictCourtfortheParishofCameronMember" name="JudicialDistrictCourtfortheParishofCameronMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_JudicialDistrictCourtfortheParishofVermillionMember" name="JudicialDistrictCourtfortheParishofVermillionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_LeaseOperatingExpenseMember" name="LeaseOperatingExpenseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_LineofCreditFacilityRequiredMinimumDownPaymentPercent" name="LineofCreditFacilityRequiredMinimumDownPaymentPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_LowerCommodityPricesMember" name="LowerCommodityPricesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_MammothEnergyServicesLPMember" name="MammothEnergyServicesLPMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_MarathonOilCorporationMember" name="MarathonOilCorporationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_MarkwestUticaMember" name="MarkwestUticaMember" 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_MontBelvieuC3Member" name="MontBelvieuC3Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_MontBelvieuC5Member" name="MontBelvieuC5Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_MontBelvieuPropane2017FixedPriceSwapMember" name="MontBelvieuPropane2017FixedPriceSwapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_MuskieHoldingsLlcMember" name="MuskieHoldingsLlcMember" 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_NYMEXHenryHub2017NaturalGasSwapMember" name="NYMEXHenryHub2017NaturalGasSwapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NYMEXHenryHub2018NaturalGasSwapMember" name="NYMEXHenryHub2018NaturalGasSwapMember" 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 abstract="true" id="gpor_NYMEXHenryHubtoNPGLMCBasisSwapMember" name="NYMEXHenryHubtoNPGLMCBasisSwapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NYMEXHenryHubtoTetcoM2BasisSwapMember" name="NYMEXHenryHubtoTetcoM2BasisSwapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NYMEXNaturalGas2017FixedPriceSwapMember" name="NYMEXNaturalGas2017FixedPriceSwapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NYMEXNaturalGas2018FixedPriceSwapMember" name="NYMEXNaturalGas2018FixedPriceSwapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NYMEXWTIMember" name="NYMEXWTIMember" 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 id="gpor_NetChangesInPricesProductionCostsAndDevelopment" name="NetChangesInPricesProductionCostsAndDevelopment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_NineteenNinetyNineStockOptionPlanMember" name="NineteenNinetyNineStockOptionPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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_NovaScotiaAmegyKeybankMember" name="NovaScotiaAmegyKeybankMember" 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_OhioGatheringCompanyLLCandOhioCondensateCompanyLLCMember" name="OhioGatheringCompanyLLCandOhioCondensateCompanyLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_OilAndCondensateSales" name="OilAndCondensateSales" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" 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_OilAndGasPropertyFullCostMethodAmountsCapitalizedDuringPeriod" name="OilAndGasPropertyFullCostMethodAmountsCapitalizedDuringPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <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 abstract="true" id="gpor_PalomaandAEUMember" name="PalomaandAEUMember" 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_PostEmploymentBenefitsEligibilityTerm" name="PostEmploymentBenefitsEligibilityTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ProductionDeliveredUnderFixedPriceSwapsPercentage" name="ProductionDeliveredUnderFixedPriceSwapsPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" 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_ProductivityRevisionsAxis" name="ProductivityRevisionsAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ProductivityRevisionsDomain" name="ProductivityRevisionsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ProvedDevelopedAndUndevelopedReservesRollForward" name="ProvedDevelopedAndUndevelopedReservesRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ProvedDevelopedandUndevelopedReserveProductionIncreasePercentageEnergy" name="ProvedDevelopedandUndevelopedReserveProductionIncreasePercentageEnergy" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ProvedPropertiesMember" name="ProvedPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ProvedUndevelopedReservesPostponementofDrillingPeriod" name="ProvedUndevelopedReservesPostponementofDrillingPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" 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_RescheduledDrillingMember" name="RescheduledDrillingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ResultsOfOperationsIncomeTaxExpenseCurrent" name="ResultsOfOperationsIncomeTaxExpenseCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gpor_ResultsOfOperationsIncomeTaxExpenseDeferred" name="ResultsOfOperationsIncomeTaxExpenseDeferred" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ResultsofOperationsforOilandGasProducingActivitiesLineItems" name="ResultsofOperationsforOilandGasProducingActivitiesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ResultsofOperationsforOilandGasProducingActivitiesTable" name="ResultsofOperationsforOilandGasProducingActivitiesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_RhinoExplorationLLCUticaShalePropertiesMember" name="RhinoExplorationLLCUticaShalePropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_RiceMidstreamHoldingMember" name="RiceMidstreamHoldingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_SalaryCommitmentUnderEmploymentAgreementsMember" name="SalaryCommitmentUnderEmploymentAgreementsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_SaleOfStockAxis" name="SaleOfStockAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_SaleOfStockDomain" name="SaleOfStockDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_SalesCommitmentVolume" name="SalesCommitmentVolume" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_ScheduleOfCumulativeTranslationAdjustmentsIncludedInAccumulatedOtherComprehensiveIncomeTableTextBlock" name="ScheduleOfCumulativeTranslationAdjustmentsIncludedInAccumulatedOtherComprehensiveIncomeTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" 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_ScheduleOfLongTermDebtInterestTableTextBlock" name="ScheduleOfLongTermDebtInterestTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ScheduleOfPropertyAndEquipmentTableTextBlock" name="ScheduleOfPropertyAndEquipmentTableTextBlock" 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_SellingStockholdersMember" name="SellingStockholdersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateOptionsGranted" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateOptionsGranted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedAdditionalTimeOverVestingPeriod" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedAdditionalTimeOverVestingPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsEmploymentAgreementAnnualGrantofShares" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsEmploymentAgreementAnnualGrantofShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_ShellTradingCompanyMember" name="ShellTradingCompanyMember" 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_SouthernLouisianaandUticaFieldsMember" name="SouthernLouisianaandUticaFieldsMember" 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_StingrayLogisticsLlcMember" name="StingrayLogisticsLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_StingrayPressurePumpingLlcMember" name="StingrayPressurePumpingLlcMember" 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_SummaryOfSignificantAccountingPoliciesLineItems" name="SummaryOfSignificantAccountingPoliciesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_SummaryOfSignificantAccountingPoliciesTable" name="SummaryOfSignificantAccountingPoliciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_SupplyCommitmentDueAfterFifthYear" name="SupplyCommitmentDueAfterFifthYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_SupplyCommitmentDueinNextTwelveMonths" name="SupplyCommitmentDueinNextTwelveMonths" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_SupplyCommitmentDueinYearFive" name="SupplyCommitmentDueinYearFive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_SupplyCommitmentDueinYearFour" name="SupplyCommitmentDueinYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_SupplyCommitmentDueinYearThree" name="SupplyCommitmentDueinYearThree" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_SupplyCommitmentDueinYearTwo" name="SupplyCommitmentDueinYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="gpor_SupplyCommitmentTotal" name="SupplyCommitmentTotal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <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_TimberWolfTerminalsLlcMember" name="TimberWolfTerminalsLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gpor_TotalCostsIncurredInOilAndGasPropertiesAcquisitionAndDevelopmentActivities" name="TotalCostsIncurredInOilAndGasPropertiesAcquisitionAndDevelopmentActivities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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_TransportationCommitmentMember" name="TransportationCommitmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_TwoThousandFiveStockIncentivePlanMember" name="TwoThousandFiveStockIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_TwoThousandThirteenRestatedStockIncentivePlanMember" name="TwoThousandThirteenRestatedStockIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <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_UticaPropertiesMember" name="UticaPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_UticaShaleMember" name="UticaShaleMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gpor_VitruvianMember" name="VitruvianMember" 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_WellsFargoBankMember" name="WellsFargoBankMember" 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>
