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  <xsd:element id="dk_NetIncomeLossAvailableToGeneralAndLimitedPartners" name="NetIncomeLossAvailableToGeneralAndLimitedPartners" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_NetIncomePerLimitedPartnerUnitAbstract" name="NetIncomePerLimitedPartnerUnitAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_NonCashInvestingActivitiesIncreaseDecreaseinAccruedCapitalExpenditures" name="NonCashInvestingActivitiesIncreaseDecreaseinAccruedCapitalExpenditures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="dk_NonCashLeaseLiabilityRecognitionofRightOfUseAsset" name="NonCashLeaseLiabilityRecognitionofRightOfUseAsset" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_NoncashfinancingactivitiesAbstract" name="NoncashfinancingactivitiesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_NumberofStorageTanks" name="NumberofStorageTanks" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_NumberofUndergroundSaltwells" name="NumberofUndergroundSaltwells" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_OmnibusAgreementMember" name="OmnibusAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_OperatingExpensesExcludedFromCostOfSales" name="OperatingExpensesExcludedFromCostOfSales" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_OtherInformationAbstract" name="OtherInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_OwnershipInterestinGeneralPartner" name="OwnershipInterestinGeneralPartner" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="dk_PartnersCapitalAccountGeneralPartnerUnitsIssuedToMaintainInterestPercentage" name="PartnersCapitalAccountGeneralPartnerUnitsIssuedToMaintainInterestPercentage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="dk_PartnersCapitalAccountUnitsIssued" name="PartnersCapitalAccountUnitsIssued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_PartnersCapitalAccountUnitsWithheldforTaxes" name="PartnersCapitalAccountUnitsWithheldforTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_PartnershipAgreementMember" name="PartnershipAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_Pipelinereleaseliabilitiescurrent" name="Pipelinereleaseliabilitiescurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="dk_PipelinesAndTransportationMember" name="PipelinesAndTransportationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_ProductRevenueAffiliateMember" name="ProductRevenueAffiliateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_ProductRevenueThirdPartyMember" name="ProductRevenueThirdPartyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_RailOffloadingPipelineMember" name="RailOffloadingPipelineMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_RangelandRioMember" name="RangelandRioMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_RefinedProductPipelineMember" name="RefinedProductPipelineMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_ReimbursementofcapitalexpendituresbySponsor" name="ReimbursementofcapitalexpendituresbySponsor" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="dk_RelatedPartyAnnualServiceFee" name="RelatedPartyAnnualServiceFee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="dk_RelatedPartyLimiitedGuarantyofDebt" name="RelatedPartyLimiitedGuarantyofDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="dk_RevenuefromThirdParty" name="RevenuefromThirdParty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_ScheduleOfDistributionsEarnedByLimitedAndGeneralPartnersTable" name="ScheduleOfDistributionsEarnedByLimitedAndGeneralPartnersTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_ScheduleofAllocationofNetIncometoGeneralPartnerTableTextBlock" name="ScheduleofAllocationofNetIncometoGeneralPartnerTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_ScheduleofAssetAcquisitionsbyAcquisitionLineItems" name="ScheduleofAssetAcquisitionsbyAcquisitionLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_ScheduleofAssetAcquisitionsbyAcquisitionTable" name="ScheduleofAssetAcquisitionsbyAcquisitionTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_ScheduleofAssetAcquisitionsbyAcquisitionTableTextBlock" name="ScheduleofAssetAcquisitionsbyAcquisitionTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_SecondAmendedandRestatedCreditAgreementMember" name="SecondAmendedandRestatedCreditAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_SecondTargetDistributionMember" name="SecondTargetDistributionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_SegmentContributionMargin" name="SegmentContributionMargin" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_ServiceRevenueAffiliateMember" name="ServiceRevenueAffiliateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_ServiceRevenueThirdPartyMember" name="ServiceRevenueThirdPartyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_StorageAsphaltServicesMember" name="StorageAsphaltServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_StorageCapacityMember" name="StorageCapacityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_StorageThroughputFacilitiesMember" name="StorageThroughputFacilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_SupplementalCashFlowInformationCashPaidDuringPeriodAbstract" name="SupplementalCashFlowInformationCashPaidDuringPeriodAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_Tankinspectionliabilitiescurrent" name="Tankinspectionliabilitiescurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="dk_TermOfAgreement" name="TermOfAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_TermOfAgreementExtension" name="TermOfAgreementExtension" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_ThereafterMember" name="ThereafterMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_ThirdTargetDistributionMember" name="ThirdTargetDistributionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_ThroughputCommitmentTariffRate" name="ThroughputCommitmentTariffRate" nillable="true" substitutionGroup="xbrli:item" type="us-types:perUnitItemType" xbrli:periodType="duration" />
  <xsd:element id="dk_Totalnonoperatingincomeexpenses" name="Totalnonoperatingincomeexpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_VestedPhantomUnitsMember" name="VestedPhantomUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_WeightedAverageLimitedPartnerUnitsOutstandingAbstract" name="WeightedAverageLimitedPartnerUnitsOutstandingAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dk_WholesaleMarketingAndTerminallingMember" name="WholesaleMarketingAndTerminallingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
