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  <xsd:element id="cog_AmortizationOfUnprovedProperties" name="AmortizationOfUnprovedProperties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cog_AmountRecognizedInNetPeriodicCostAndOtherComprehensiveIncome" name="AmountRecognizedInNetPeriodicCostAndOtherComprehensiveIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_AntidilutiveSecuritiesExcludedfromComputationofEPSAmountTreasuryStockMethod" name="AntidilutiveSecuritiesExcludedfromComputationofEPSAmountTreasuryStockMethod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_AntidilutiveSecuritiesExcludedfromComputationofEPSduetoNetLossAmount" name="AntidilutiveSecuritiesExcludedfromComputationofEPSduetoNetLossAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_AssetRetirementObligationLiabilitiesDivested" name="AssetRetirementObligationLiabilitiesDivested" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_AssetRetirementObligationsTransfers" name="AssetRetirementObligationsTransfers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cog_CashAndCashEquivalentsNumberOfFinancialInstitutions" name="CashAndCashEquivalentsNumberOfFinancialInstitutions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_CommonStockSharesHeldInEmployeeTrustSharesEarnedButNotDistributed" name="CommonStockSharesHeldInEmployeeTrustSharesEarnedButNotDistributed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_CommonStockSharesVestedPerformanceShareAwardsHeldInEmployeeTrustShares" name="CommonStockSharesVestedPerformanceShareAwardsHeldInEmployeeTrustShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_ConcentrationRiskNumberOfCustomers" name="ConcentrationRiskNumberOfCustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_ConstitutionPipelineCompanyLLCMember" name="ConstitutionPipelineCompanyLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_CumulativePaymentsForRepurchaseOfCommonStock" name="CumulativePaymentsForRepurchaseOfCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cog_CumulativeTreasuryStockSharesAcquired" name="CumulativeTreasuryStockSharesAcquired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_CumulativeTreasuryStockSharesRetired" name="CumulativeTreasuryStockSharesRetired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cog_CustomerNumberThreeMember" name="CustomerNumberThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_CustomerOneConcentrationRiskMember" name="CustomerOneConcentrationRiskMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_CustomerTwoConcentrationRiskMember" name="CustomerTwoConcentrationRiskMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DebtInstrumentCovenantAnnualCoverageRatioMinimum" name="DebtInstrumentCovenantAnnualCoverageRatioMinimum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DebtInstrumentCovenantComplianceAssetCoverageRatio" name="DebtInstrumentCovenantComplianceAssetCoverageRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DebtInstrumentCovenantComplianceNumberofConsecutiveFiscalPeriods" name="DebtInstrumentCovenantComplianceNumberofConsecutiveFiscalPeriods" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DebtInstrumentCovenantCurrentRatioMinimum" name="DebtInstrumentCovenantCurrentRatioMinimum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_DebtInstrumentNumberOfInstitutionalInvestors" name="DebtInstrumentNumberOfInstitutionalInvestors" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DeferredCompensationMarketValueOfAssetsExcludingCommonStock" name="DeferredCompensationMarketValueOfAssetsExcludingCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_DeferredCompensationPlanMember" name="DeferredCompensationPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DeferredCompensationShareBasedArrangementsCashPayments" name="DeferredCompensationShareBasedArrangementsCashPayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_DeferredTaxAssetsDerivativeAndHedgingTransactions" name="DeferredTaxAssetsDerivativeAndHedgingTransactions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cog_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRateBeginningOfYear" name="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRateBeginningOfYear" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYearPost65" name="DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYearPost65" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYearPre65" name="DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYearPre65" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_DefinedBenefitPlanNetPeriodicBenefitCostCreditBeforeCurtailmentsandSettlements" name="DefinedBenefitPlanNetPeriodicBenefitCostCreditBeforeCurtailmentsandSettlements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_DefinedBenefitPlanNumberOfRetireesAndDependents" name="DefinedBenefitPlanNumberOfRetireesAndDependents" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DefinedBenefitPlanSubsidyLimitPercentageOfAnnualIncreaseUnderAgeThreshold" name="DefinedBenefitPlanSubsidyLimitPercentageOfAnnualIncreaseUnderAgeThreshold" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DefinedBenefitPlanSubsidyLimitPercentageOfExpectedAnnualFullyInsuredPremiumOverAgeThreshold" name="DefinedBenefitPlanSubsidyLimitPercentageOfExpectedAnnualFullyInsuredPremiumOverAgeThreshold" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DefinedBenefitPlanSubsidyLimitPercentageOfExpectedAnnualFullyInsuredPremiumUnderAgeThreshold" name="DefinedBenefitPlanSubsidyLimitPercentageOfExpectedAnnualFullyInsuredPremiumUnderAgeThreshold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cog_DefinedBenefitPlanUltimateHealthCareCostTrendRatePost65" name="DefinedBenefitPlanUltimateHealthCareCostTrendRatePost65" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_DefinedBenefitPlanUltimateHealthCareCostTrendRatePre65" name="DefinedBenefitPlanUltimateHealthCareCostTrendRatePre65" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRatePost65" name="DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRatePost65" nillable="true" substitutionGroup="xbrli:item" type="xbrli:gYearItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRatePre65" name="DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRatePre65" nillable="true" substitutionGroup="xbrli:item" type="xbrli:gYearItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DefinedContributionPlanCostRecognizedDiscretionary" name="DefinedContributionPlanCostRecognizedDiscretionary" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_DefinedContributionPlanMaximumAnnualContributionsPerEmployerPercent" name="DefinedContributionPlanMaximumAnnualContributionsPerEmployerPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_DerivativeInstrumentsNoncurrentMember" name="DerivativeInstrumentsNoncurrentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_DerivativeInstrumentscurrentMember" name="DerivativeInstrumentscurrentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_DisposalGroupIncludingDiscontinuedOperationAssetRetirementObligations" name="DisposalGroupIncludingDiscontinuedOperationAssetRetirementObligations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cog_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_EagleFordShaleMember" name="EagleFordShaleMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_EagleFordShaleinSouthTexasMember" name="EagleFordShaleinSouthTexasMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_EastTexasMember" name="EastTexasMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_EffectiveIncomeTaxRateReconciliationChangeinEnactedTaxRateStateandLocalPercent" name="EffectiveIncomeTaxRateReconciliationChangeinEnactedTaxRateStateandLocalPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxExpenseAmount" name="EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxExpenseAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent" name="EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_EmployeePerformanceSharesMember" name="EmployeePerformanceSharesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_EquityMethodInvestmentsNumberofInvestments" name="EquityMethodInvestmentsNumberofInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_EquityMethodInvestmentsRollForward" name="EquityMethodInvestmentsRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_FivePointFiveEightPercentageWeightedAverageFixedRateNotesMember" name="FivePointFiveEightPercentageWeightedAverageFixedRateNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_GatheringAndPipelineSystems" name="GatheringAndPipelineSystems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cog_GatheringAndPipelineSystemsAndEquipmentMember" name="GatheringAndPipelineSystemsAndEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_HaynesvilleShaleMember" name="HaynesvilleShaleMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_HybridPerformanceSharesMember" name="HybridPerformanceSharesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_IncomeTaxReconciliationDeferredTaxAdjustmentRelatedToChangeInOverallStateTaxRate" name="IncomeTaxReconciliationDeferredTaxAdjustmentRelatedToChangeInOverallStateTaxRate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_InternalMetricsPerformanceShareAwardsMember" name="InternalMetricsPerformanceShareAwardsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_JointlyOwnedPipelineNetOwnershipContributionCap" name="JointlyOwnedPipelineNetOwnershipContributionCap" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cog_JointlyOwnedPipelineProportionateOwnershipShare" name="JointlyOwnedPipelineProportionateOwnershipShare" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_LongTermDebtNumberOfTranches" name="LongTermDebtNumberOfTranches" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_MarketBasedPerformanceShareAwardsMember" name="MarketBasedPerformanceShareAwardsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_MeadePipelineCoLLCMember" name="MeadePipelineCoLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_NaturalGasContractContractFiveMember" name="NaturalGasContractContractFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_NaturalGasContractContractFourMember" name="NaturalGasContractContractFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_NaturalGasContractContractOneMember" name="NaturalGasContractContractOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_NaturalGasContractContractSevenMember" name="NaturalGasContractContractSevenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_NaturalGasContractContractSixMember" name="NaturalGasContractContractSixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_NaturalGasContractThreeMember" name="NaturalGasContractThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_NaturalGasContractTwoMember" name="NaturalGasContractTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_NaturalGasPurchase" name="NaturalGasPurchase" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cog_NinePointSevenEightPercentageNotesMember" name="NinePointSevenEightPercentageNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_NumberOfNonFinancialAssetsAndLiabilitiesImpaired" name="NumberOfNonFinancialAssetsAndLiabilitiesImpaired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_OilAndGasOtherMember" name="OilAndGasOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_OilandGasPropertiesProvedandUnprovedMember" name="OilandGasPropertiesProvedandUnprovedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ProceedsfromPaymentsforDerivativeInstrumentOperatingActivities" name="ProceedsfromPaymentsforDerivativeInstrumentOperatingActivities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_PurchaseAgreementFirmTransportationCapacity" name="PurchaseAgreementFirmTransportationCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_RealizedGainLossOnDerivatives" name="RealizedGainLossOnDerivatives" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cog_ReceivablesGrossCurrent" name="ReceivablesGrossCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cog_RefundablePortionOfAMTCreditsMember" name="RefundablePortionOfAMTCreditsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_SalePriceofPropertyBeforeClosingAdjustment" name="SalePriceofPropertyBeforeClosingAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cog_SavingsInvestmentPlanMember" name="SavingsInvestmentPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedCompensationAwardPercentageRightToReceiveAdditionalShares" name="ShareBasedCompensationArrangementByShareBasedCompensationAwardPercentageRightToReceiveAdditionalShares" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedCompensationAwardPercentageRightToReceiveShares" name="ShareBasedCompensationArrangementByShareBasedCompensationAwardPercentageRightToReceiveShares" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAchievementAwardGrantDateFairValueCertified" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAchievementAwardGrantDateFairValueCertified" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedAndVestedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedAndVestedInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIssuedAndFullyVestedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIssuedAndFullyVestedInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIssuedAndFullyVestedInPeriodWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIssuedAndFullyVestedInPeriodWeightedAverageGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIssuedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIssuedInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIssuedInPeriodWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIssuedInPeriodWeightedAverageGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsMinimumOperatingCashFlowRequirement" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsMinimumOperatingCashFlowRequirement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfSharesIssuableCertified" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfSharesIssuableCertified" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsTerm" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitures" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitures" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisesInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisesInPeriodWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTypesOfEquityInstrumentsOtherThanOptionsGranted" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTypesOfEquityInstrumentsOtherThanOptionsGranted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceCriteriaNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceCriteriaNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShareAwardsEndOfPerformancePeriodNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShareAwardsEndOfPerformancePeriodNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockAppreciationRightsAdditionalDisclosuresAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardStockAppreciationRightsAdditionalDisclosuresAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_ShareBasedCompensationArrangementbyShareBasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantedandVestedinPeriodWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementbyShareBasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantedandVestedinPeriodWeightedAverageGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_SixPointFiveOnePercentageWeightedAverageFixedRateNotesMember" name="SixPointFiveOnePercentageWeightedAverageFixedRateNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_SouthTexasEastTexasandLouisianaMember" name="SouthTexasEastTexasandLouisianaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_SouthTexasMember" name="SouthTexasMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_StockAmortizationAndVesting" name="StockAmortizationAndVesting" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cog_StockAmortizationAndVestingShares" name="StockAmortizationAndVestingShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_StockBasedCompensationExpensePensionAndOther" name="StockBasedCompensationExpensePensionAndOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_StockIncentivePlan2014Member" name="StockIncentivePlan2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_StockRepurchaseProgramIncrementalNumberOfSharesAuthorizedToBeRepurchased" name="StockRepurchaseProgramIncrementalNumberOfSharesAuthorizedToBeRepurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_TSRPerformanceSharesMember" name="TSRPerformanceSharesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cog_TaxCutsAndJobsAct2017ReclassificationOfStrandedTaxBenefits" name="TaxCutsAndJobsAct2017ReclassificationOfStrandedTaxBenefits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxExpenseBenefit" name="TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxExpenseBenefit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cog_TaxCutsAndJobsActReclassificationfromAOCItoRetainedEarningsTaxEffect" name="TaxCutsAndJobsActReclassificationfromAOCItoRetainedEarningsTaxEffect" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cog_TaxCutsandJobsActMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit" name="TaxCutsandJobsActMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cog_TaxesOtherThanIncomePayable" name="TaxesOtherThanIncomePayable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cog_ThreePointSixFivePercentageWeightedAverageFixedRateNotesMember" name="ThreePointSixFivePercentageWeightedAverageFixedRateNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_TranscontinentalGasPipeLineCompanyLLCMember" name="TranscontinentalGasPipeLineCompanyLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_TransportationAgreementObligationMember" name="TransportationAgreementObligationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cog_WestVirginiaVirginiaandOhioMember" name="WestVirginiaVirginiaandOhioMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
