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  <xsd:element name="InvestingAndFinancingActivitiesItemsIncludedInNetIncomeLossAbstract" id="insw_InvestingAndFinancingActivitiesItemsIncludedInNetIncomeLossAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PaymentsForDrydocking" id="insw_PaymentsForDrydocking" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="NumberOfRevenueDays" id="insw_NumberOfRevenueDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SummaryOfSignificantAccountingPoliciesLineItems" id="insw_SummaryOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ChartersOutMember" id="insw_ChartersOutMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OperatingLeasesRevenueDaysCurrent" id="insw_OperatingLeasesRevenueDaysCurrent" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EquityMethodInvestmentSummarizedFinancialInformationShippingPoolRevenue" id="insw_EquityMethodInvestmentSummarizedFinancialInformationShippingPoolRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="SharesPaidForTaxWithholdingForShareBasedCompensationPerShareAmount" id="insw_SharesPaidForTaxWithholdingForShareBasedCompensationPerShareAmount" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ParticipatingSecuritiesAllocatedPortionOfIncome" id="insw_ParticipatingSecuritiesAllocatedPortionOfIncome" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustedAssets" id="insw_AdjustedAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="NumberOfVesselsInFleet" id="insw_NumberOfVesselsInFleet" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="LighteringServicesComponentMember" id="insw_LighteringServicesComponentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FairValueOfFinancialInstrumentsDerivativesAndFairValueDisclosuresTable" id="insw_FairValueOfFinancialInstrumentsDerivativesAndFairValueDisclosuresTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FairValueOfFinancialInstrumentsDerivativesAndFairValueDisclosuresLineItems" id="insw_FairValueOfFinancialInstrumentsDerivativesAndFairValueDisclosuresLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SupplementalLeaseInformationTableTextBlock" id="insw_SupplementalLeaseInformationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CharterHireExpenseMember" id="insw_CharterHireExpenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VoyageExpenseMember" id="insw_VoyageExpenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VesselExpenseMember" id="insw_VesselExpenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PoolRevenueLeasesMember" id="insw_PoolRevenueLeasesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TimeAndBareboatCharterLeasesMember" id="insw_TimeAndBareboatCharterLeasesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VoyageCharterLeasesMember" id="insw_VoyageCharterLeasesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromCostsSaleOfPropertyPlantAndEquipment" id="insw_ProceedsFromCostsSaleOfPropertyPlantAndEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NonVariableLeaseIncome" id="insw_NonVariableLeaseIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PaymentToAcquireVesselsAndVesselsImprovements" id="insw_PaymentToAcquireVesselsAndVesselsImprovements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="DerivativesPeriodAxis" id="insw_DerivativesPeriodAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DerivativesPeriodDomain" id="insw_DerivativesPeriodDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VesselOperationsMember" id="insw_VesselOperationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VeryLargeCrudeCarrierMember" id="insw_VeryLargeCrudeCarrierMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AframaxesMember" id="insw_AframaxesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MediumRangeVesselMember" id="insw_MediumRangeVesselMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MarginAxis" id="insw_MarginAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MarginDomain" id="insw_MarginDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OperatingLeasesRevenueDaysYearTwo" id="insw_OperatingLeasesRevenueDaysYearTwo" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VoyageCharterLeasesNonVariablePaymentsMember" id="insw_VoyageCharterLeasesNonVariablePaymentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VoyageCharterLeasesVariablePaymentsMember" id="insw_VoyageCharterLeasesVariablePaymentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LongRangeOneVesselMember" id="insw_LongRangeOneVesselMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OperatingLeasesRevenueDaysYearThree" id="insw_OperatingLeasesRevenueDaysYearThree" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OperatingLeasesRevenueDaysYearFour" id="insw_OperatingLeasesRevenueDaysYearFour" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LeaseCancellationPeriodNotice" id="insw_LeaseCancellationPeriodNotice" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfVesselsPartyToContracts" id="insw_NumberOfVesselsPartyToContracts" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TotalShareholderReturnPerformancePeriod" id="insw_TotalShareholderReturnPerformancePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TotalShareholderReturnPeerGroupPerformancePeriod" id="insw_TotalShareholderReturnPeerGroupPerformancePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfMajorCategoriesOfLeases" id="insw_NumberOfMajorCategoriesOfLeases" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExcludedVesselsCharteredPeriod" id="insw_ExcludedVesselsCharteredPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfVesselsChartered" id="insw_NumberOfVesselsChartered" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LongRangeTwoVesselMember" id="insw_LongRangeTwoVesselMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MaritimeEquipmentNotIncludingNewBuildsMember" id="insw_MaritimeEquipmentNotIncludingNewBuildsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PropertyPlantAndEquipmentInConstruction" id="insw_PropertyPlantAndEquipmentInConstruction" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="RemainingCostOfConstructionOfVessels" id="insw_RemainingCostOfConstructionOfVessels" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="SuezmaxVesselMember" id="insw_SuezmaxVesselMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RepaymentsOnRevolvingCreditFacilities" id="insw_RepaymentsOnRevolvingCreditFacilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AssetAcquisitionNumberOfVesselsAcquired" id="insw_AssetAcquisitionNumberOfVesselsAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PaymentsOfSaleAndLeasebackFinancing" id="insw_PaymentsOfSaleAndLeasebackFinancing" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="BoCommLeaseFinancingDue2030Member" id="insw_BoCommLeaseFinancingDue2030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ToshinLeaseFinancingDue2031Member" id="insw_ToshinLeaseFinancingDue2031Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="HyugaLeaseFinancingMember" id="insw_HyugaLeaseFinancingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="KaiyoLeaseFinancingMember" id="insw_KaiyoLeaseFinancingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OperatingLeaseLeaseIncomeExpense" id="insw_OperatingLeaseLeaseIncomeExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="KaishaLeaseFinancingMember" id="insw_KaishaLeaseFinancingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareholdersRightPlanMember" id="insw_ShareholdersRightPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfRightsForEachShareOfCommonStock" id="insw_NumberOfRightsForEachShareOfCommonStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="RightsToPurchaseCommonStockMember" id="insw_RightsToPurchaseCommonStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OperatingAndFinancingLeaseLiability" id="insw_OperatingAndFinancingLeaseLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ProceedsFromPaymentsToPoolWorkingCapitalDeposits" id="insw_ProceedsFromPaymentsToPoolWorkingCapitalDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="OperatingLeasesRevenueDaysYearFive" id="insw_OperatingLeasesRevenueDaysYearFive" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AmendedAndRestatedRightsAgreementMember" id="insw_AmendedAndRestatedRightsAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfAcquiringPersonTriggerThreshold" id="insw_PercentageOfAcquiringPersonTriggerThreshold" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="JeffreyPriborMember" id="insw_JeffreyPriborMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OneHundredAndSixtyMillionRevolvingCreditFacilityMember" id="insw_OneHundredAndSixtyMillionRevolvingCreditFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NewbuildsPendingDeliveryMember" id="insw_NewbuildsPendingDeliveryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Lr1VesselOrderedToBeBuiltMember" id="insw_Lr1VesselOrderedToBeBuiltMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TimeBasedRestrictedStockUnitsRsusMember" id="insw_TimeBasedRestrictedStockUnitsRsusMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PerformanceBasedRestrictedStockUnitsRsusMember" id="insw_PerformanceBasedRestrictedStockUnitsRsusMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TotalShareholderReturnPerformanceBasedRestrictedStockUnitsRsusMember" id="insw_TotalShareholderReturnPerformanceBasedRestrictedStockUnitsRsusMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ComponentsOfNonCashRevenuesAndExpensesRecognizedForEuaTableTextBlock" id="insw_ComponentsOfNonCashRevenuesAndExpensesRecognizedForEuaTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NonCashShippingRevenuesRecognizedForEuropeanUnionAllowancesEuas" id="insw_NonCashShippingRevenuesRecognizedForEuropeanUnionAllowancesEuas" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NonCashVoyageExpensesIncurredForEuropeanUnionAllowancesEuas" id="insw_NonCashVoyageExpensesIncurredForEuropeanUnionAllowancesEuas" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ValueOfEuropeanUnionAllowancesEuasReceivableFromCharterersOrCommercialPools" id="insw_ValueOfEuropeanUnionAllowancesEuasReceivableFromCharterersOrCommercialPools" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ValueOfEuropeanUnionAllowancesEuasDueToEuropeanUnionAuthorities" id="insw_ValueOfEuropeanUnionAllowancesEuasDueToEuropeanUnionAuthorities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="EuropeanUnionsEmissionsTradingSystemMember" id="insw_EuropeanUnionsEmissionsTradingSystemMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FiveHundredMillionRevolvingCreditFacilityMember" id="insw_FiveHundredMillionRevolvingCreditFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfVesselsDelivered" id="insw_NumberOfVesselsDelivered" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SecurityDepositsForSaleOfVessels" id="insw_SecurityDepositsForSaleOfVessels" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TwoThousandTenBuiltVlccMember" id="insw_TwoThousandTenBuiltVlccMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwoThousandTenAndTwoThousandElevenBuiltVlccMember" id="insw_TwoThousandTenAndTwoThousandElevenBuiltVlccMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesReceivedPerInstrumentUponVesting" id="insw_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesReceivedPerInstrumentUponVesting" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PensionPlanAndOtherPostretirementBenefitPlansDefinedBenefitMember" id="insw_PensionPlanAndOtherPostretirementBenefitPlansDefinedBenefitMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LoisZabrockyMember" id="insw_LoisZabrockyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwoThousandAndSevenMRsMember" id="insw_TwoThousandAndSevenMRsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwoThousandAndEightMRsMember" id="insw_TwoThousandAndEightMRsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwentyThirtyBondsMember" id="insw_TwentyThirtyBondsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EcaCreditFacilityMember" id="insw_EcaCreditFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EuropeanUnionEmissionsTradingSystem2025YearMember" id="insw_EuropeanUnionEmissionsTradingSystem2025YearMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwoThousandAndThirtyBondsMember" id="insw_TwoThousandAndThirtyBondsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IncomeLossBeforeInterestExpenseReorganizationItemsAndTaxes" id="insw_IncomeLossBeforeInterestExpenseReorganizationItemsAndTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TwoOfSixLr1VesselDeliveredMember" id="insw_TwoOfSixLr1VesselDeliveredMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TankersUkAgenciesLimitedTukaMember" id="insw_TankersUkAgenciesLimitedTukaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="O2026Q1DividendsMember" id="insw_O2026Q1DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RecentlyAdoptedAccountingPronouncementsPolicyPolicyTextBlock" id="insw_RecentlyAdoptedAccountingPronouncementsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OperatingIncomeLossExcludingEquityInIncomeLossOfAffiliatedCompanies" id="insw_OperatingIncomeLossExcludingEquityInIncomeLossOfAffiliatedCompanies" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OneOfSixLr1VesselDeliveredThirdMember" id="insw_OneOfSixLr1VesselDeliveredThirdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OneOfSixLr1VesselDeliveredFourthMember" id="insw_OneOfSixLr1VesselDeliveredFourthMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwoThousandAndTwelveVlccMember" id="insw_TwoThousandAndTwelveVlccMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NetAssetsAcquiredInBusinessCombinationFairValueDisclosure" id="insw_NetAssetsAcquiredInBusinessCombinationFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TankersAgenciesLimitedMember" id="insw_TankersAgenciesLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TankersInternationalLimitedMember" id="insw_TankersInternationalLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredOtherTangibleAssets" id="insw_BusinessCombinationRecognizedAssetAcquiredOtherTangibleAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BusinessCombinationRecognizedLiabilityAssumedOtherTangibleLiabilities" id="insw_BusinessCombinationRecognizedLiabilityAssumedOtherTangibleLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationAchievedInStagesPreacquisitionEquityInterestInAcquireeBookValue" id="insw_BusinessCombinationAchievedInStagesPreacquisitionEquityInterestInAcquireeBookValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="UnbilledCommercialManagementFeesMember" id="insw_UnbilledCommercialManagementFeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="UnbilledVoyageReceivablesMember" id="insw_UnbilledVoyageReceivablesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OfficeSpaceAndVesselEquipmentMember" id="insw_OfficeSpaceAndVesselEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfFairValueOfNetAssetsAcquiredTableTextBlock" id="insw_ScheduleOfFairValueOfNetAssetsAcquiredTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TislBorrowingBaseFacilityMember" id="insw_TislBorrowingBaseFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PoolsInWhichEntityParticipatesMember" id="insw_PoolsInWhichEntityParticipatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="O2026Q2DividendsMember" id="insw_O2026Q2DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="O2026Q3DividendsMember" id="insw_O2026Q3DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="VoyageCharterRevenuesMember" id="insw_VoyageCharterRevenuesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfContracts" id="insw_NumberOfContracts" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FirstAndSecondLr1VesselNewbuildingsMember" id="insw_FirstAndSecondLr1VesselNewbuildingsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FiveHundredMillionAndOneHundredSixtyMillionRevolvingCreditFacilityAndEcaCreditFacilityTranchesMember" id="insw_FiveHundredMillionAndOneHundredSixtyMillionRevolvingCreditFacilityAndEcaCreditFacilityTranchesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OutstandingDebtFacilitiesMember" id="insw_OutstandingDebtFacilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherOperatingRevenue" id="insw_OtherOperatingRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
</xsd:schema>
