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<!--Created on: 11/14/2022 12:12:14 PM-->
<!--Modified on: 11/14/2022 12:12:14 PM-->
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  <xsd:element name="InvestmentTermOfPartnership" id="grnt_InvestmentTermOfPartnership" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ExtensionTermOfInvestment" id="grnt_ExtensionTermOfInvestment" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="HarvestPeriod" id="grnt_HarvestPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ExtensionTermOfHarvestPeriod" id="grnt_ExtensionTermOfHarvestPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AdditionalTermForDissolutionAndLiquidationOfPartnership" id="grnt_AdditionalTermForDissolutionAndLiquidationOfPartnership" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfHedging" id="grnt_PercentageOfHedging" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="HedgingTermOfExpectedOilAndGasProduction" id="grnt_HedgingTermOfExpectedOilAndGasProduction" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EagleFordBasinMember" id="grnt_EagleFordBasinMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationPercentageOfWorkingInterestAcquired" id="grnt_BusinessCombinationPercentageOfWorkingInterestAcquired" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="BusinessCombinationPercentageOfNetRevenueInterestAcquired" id="grnt_BusinessCombinationPercentageOfNetRevenueInterestAcquired" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScenarioOneMember" id="grnt_ScenarioOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScenarioTwoMember" id="grnt_ScenarioTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScenarioThreeMember" id="grnt_ScenarioThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScenarioFourMember" id="grnt_ScenarioFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PartnersCapitalAccountContributionReceivable" id="grnt_PartnersCapitalAccountContributionReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PercentageOfAllocationOfNetProfitsAndLossesToPartners" id="grnt_PercentageOfAllocationOfNetProfitsAndLossesToPartners" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfCumulativeDistributionsReceivedByPartner" id="grnt_PercentageOfCumulativeDistributionsReceivedByPartner" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfCumulativeAmountOfDistributions" id="grnt_PercentageOfCumulativeAmountOfDistributions" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReallocationOfDistributionsFromLimitedPartnerToGeneralPartner" id="grnt_ReallocationOfDistributionsFromLimitedPartnerToGeneralPartner" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NaturalGasAndNaturalGasLiquidsSaleMember" id="grnt_NaturalGasAndNaturalGasLiquidsSaleMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EaglefordTexasMember" id="grnt_EaglefordTexasMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PermianTexasMember" id="grnt_PermianTexasMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DenverJulesbergColoradoMember" id="grnt_DenverJulesbergColoradoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BakkenMontanaNorthDakotaMember" id="grnt_BakkenMontanaNorthDakotaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PaymentReceivableTermAfterDelivery" id="grnt_PaymentReceivableTermAfterDelivery" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PaymentReceivableTermAfterProduction" id="grnt_PaymentReceivableTermAfterProduction" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PeriodChangeInOtherCurrentAssets" id="grnt_PeriodChangeInOtherCurrentAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AcquiredAndAssumedAssetRetirementObligations" id="grnt_AcquiredAndAssumedAssetRetirementObligations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ChangeInUnrealizedGainLossOnDerivativeContracts" id="grnt_ChangeInUnrealizedGainLossOnDerivativeContracts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AdvancesToOperatorsAppliedToDevelopmentProperties" id="grnt_AdvancesToOperatorsAppliedToDevelopmentProperties" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AccruedOilAndNaturalGasDevelopmentExpenses" id="grnt_AccruedOilAndNaturalGasDevelopmentExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CapitalizedFeesBusinessCombination" id="grnt_CapitalizedFeesBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PrepaidExpensesBusinessCombination" id="grnt_PrepaidExpensesBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MonthlyVolumeCrudeOilNaturalGasContract" id="grnt_MonthlyVolumeCrudeOilNaturalGasContract" type="dtr-types:volumeItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="Producer3WayCrudeOilContractMember" id="grnt_Producer3WayCrudeOilContractMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CollarCrudeOilContractMember" id="grnt_CollarCrudeOilContractMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Producer3WayNaturalGasContractMember" id="grnt_Producer3WayNaturalGasContractMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CollarNaturalGasContractMember" id="grnt_CollarNaturalGasContractMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DerivativeContractPeriodIMember" id="grnt_DerivativeContractPeriodIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DerivativeContractPeriodIiMember" id="grnt_DerivativeContractPeriodIiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DerivativeContractPeriodIiiMember" id="grnt_DerivativeContractPeriodIiiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DerivativeContractPeriodIvMember" id="grnt_DerivativeContractPeriodIvMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OilAndGasCostPerUnit" id="grnt_OilAndGasCostPerUnit" type="srt-types:perUnitItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OilAndGasWeightedAverageCostPerUnit" id="grnt_OilAndGasWeightedAverageCostPerUnit" type="srt-types:perUnitItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="UnderlyingMarketRiskCommodityPriceMember" id="grnt_UnderlyingMarketRiskCommodityPriceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RealizedGainLossOnDerivatives" id="grnt_RealizedGainLossOnDerivatives" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="Acquisitions2022Member" id="grnt_Acquisitions2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Acquisitions2021Member" id="grnt_Acquisitions2021Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Divestitures2021Member" id="grnt_Divestitures2021Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Divestitures2022Member" id="grnt_Divestitures2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PermianBasinMember" id="grnt_PermianBasinMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DenverJulesbergBasinMember" id="grnt_DenverJulesbergBasinMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="HaynesvilleBasinMember" id="grnt_HaynesvilleBasinMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BakkenBasinMember" id="grnt_BakkenBasinMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DivestituresOfOilAndNaturalGasPropertiesDuringPeriod" id="grnt_DivestituresOfOilAndNaturalGasPropertiesDuringPeriod" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RecordedGainOnDivestiture" id="grnt_RecordedGainOnDivestiture" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="RecordedLossOnDivestiture" id="grnt_RecordedLossOnDivestiture" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CreditAgreementWithTexasCapitalBankMember" id="grnt_CreditAgreementWithTexasCapitalBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AggregateElectedCommitments" id="grnt_AggregateElectedCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LineOfCreditInitialBorrowingCapacity" id="grnt_LineOfCreditInitialBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherAssetsDisclosurePolicyTextBlock" id="grnt_OtherAssetsDisclosurePolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AnnualCumulativeDividendYield" id="grnt_AnnualCumulativeDividendYield" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ManagementFeesRelatedParty" id="grnt_ManagementFeesRelatedParty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
</xsd:schema>
