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  <xsd:element name="BusinessAcquisitionFairValueAllocationNoncurrentLiabilitiesLongTermDebt" id="paa_BusinessAcquisitionFairValueAllocationNoncurrentLiabilitiesLongTermDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="AnticipatedBaseGasPurchasesMember" id="paa_AnticipatedBaseGasPurchasesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionFairValueAllocationPropertyPlantAndEquipment" id="paa_BusinessAcquisitionFairValueAllocationPropertyPlantAndEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionFairValueAllocationWorkingCapitalAndOtherLongTermAssetsAndLiabilities" id="paa_BusinessAcquisitionFairValueAllocationWorkingCapitalAndOtherLongTermAssetsAndLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionFairValueAssetsLiabilitiesAllocationAbstract" id="paa_BusinessAcquisitionFairValueAssetsLiabilitiesAllocationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionInterestPercentagePaidAtClosing" id="paa_BusinessAcquisitionInterestPercentagePaidAtClosing" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionInventoryVolumes" id="paa_BusinessAcquisitionInventoryVolumes" type="num:volumeItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionLongTermAndSeasonalInventoriesAcquired" id="paa_BusinessAcquisitionLongTermAndSeasonalInventoriesAcquired" type="num:volumeItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionMainlineCrudeOilPipelinesAcquired" id="paa_BusinessAcquisitionMainlineCrudeOilPipelinesAcquired" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionNGLStorageCapacityAcquired" id="paa_BusinessAcquisitionNGLStorageCapacityAcquired" type="num:volumeItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionNGLSupply" id="paa_BusinessAcquisitionNGLSupply" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionNumberOfFieldGasProcessingPlantsAcquired" id="paa_BusinessAcquisitionNumberOfFieldGasProcessingPlantsAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionNumberOfFractionationPlantsAcquired" id="paa_BusinessAcquisitionNumberOfFractionationPlantsAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionNumberOfOperationalNaturalGasStorageCavernsAcquired" id="paa_BusinessAcquisitionNumberOfOperationalNaturalGasStorageCavernsAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionNumberOfPermittedNaturalGasStorageCavernsAcquired" id="paa_BusinessAcquisitionNumberOfPermittedNaturalGasStorageCavernsAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionNumberOfPipelinesAvailable" id="paa_BusinessAcquisitionNumberOfPipelinesAvailable" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionNumberOfRailCarsUnderLongTermLeasesAcquired" id="paa_BusinessAcquisitionNumberOfRailCarsUnderLongTermLeasesAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionNumberOfStraddlePlantsAcquired" id="paa_BusinessAcquisitionNumberOfStraddlePlantsAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionNumberOfTransactionsCompleted" id="paa_BusinessAcquisitionNumberOfTransactionsCompleted" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionNumberOfTruckTerminalsAcquired" id="paa_BusinessAcquisitionNumberOfTruckTerminalsAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPipelinesAcquired" id="paa_BusinessAcquisitionPipelinesAcquired" type="num:lengthItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPipelinesCapacityAcquired" id="paa_BusinessAcquisitionPipelinesCapacityAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionProceedsFromIssuanceOfCommonUnitsAndSeniorNotesUsedToPreFundAcquisition" id="paa_BusinessAcquisitionProceedsFromIssuanceOfCommonUnitsAndSeniorNotesUsedToPreFundAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAdjustmentAmountReceived" id="paa_BusinessAcquisitionPurchasePriceAdjustmentAmountReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationBaseGas" id="paa_BusinessAcquisitionPurchasePriceAllocationBaseGas" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationContractIncludedInAmortizableIntangibleAssets" id="paa_BusinessAcquisitionPurchasePriceAllocationContractIncludedInAmortizableIntangibleAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationEnvironmentalLiability" id="paa_BusinessAcquisitionPurchasePriceAllocationEnvironmentalLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationImputedInterest" id="paa_BusinessAcquisitionPurchasePriceAllocationImputedInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationInventoryAndOtherWorkingCapital" id="paa_BusinessAcquisitionPurchasePriceAllocationInventoryAndOtherWorkingCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationLinefill" id="paa_BusinessAcquisitionPurchasePriceAllocationLinefill" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationLongTermInventory" id="paa_BusinessAcquisitionPurchasePriceAllocationLongTermInventory" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationOtherWorkingCapitalIncludingCashAcquired" id="paa_BusinessAcquisitionPurchasePriceAllocationOtherWorkingCapitalIncludingCashAcquired" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationOtherWorkingCapitalNetOfCashAcquired" id="paa_BusinessAcquisitionPurchasePriceAllocationOtherWorkingCapitalNetOfCashAcquired" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationReceivableForIndemnifiedContingentTaxLiability" id="paa_BusinessAcquisitionPurchasePriceAllocationReceivableForIndemnifiedContingentTaxLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationTaxAbatementIncludedInAmortizableIntangibleAssets" id="paa_BusinessAcquisitionPurchasePriceAllocationTaxAbatementIncludedInAmortizableIntangibleAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationWorkingCapital" id="paa_BusinessAcquisitionPurchasePriceAllocationWorkingCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceEscrowed" id="paa_BusinessAcquisitionPurchasePriceEscrowed" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePriceEscrowedPercentage" id="paa_BusinessAcquisitionPurchasePriceEscrowedPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionPurchasePricePortionPaidAtClosing" id="paa_BusinessAcquisitionPurchasePricePortionPaidAtClosing" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionSystemThroughputCapacityAcquired" id="paa_BusinessAcquisitionSystemThroughputCapacityAcquired" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionTankageAcquired" id="paa_BusinessAcquisitionTankageAcquired" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionThroughputCapacityOfThirdPartyStraddlePlantLongTermContractAcquired" id="paa_BusinessAcquisitionThroughputCapacityOfThirdPartyStraddlePlantLongTermContractAcquired" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionVolumeOfPermittedGasStorageCavernCapacity" id="paa_BusinessAcquisitionVolumeOfPermittedGasStorageCavernCapacity" type="num:volumeItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionsProFormaNetIncomeLossAllocatedToLimitedPartners" id="paa_BusinessAcquisitionsProFormaNetIncomeLossAllocatedToLimitedPartners" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ButanePositionContractsRelatedToSubsequentSaleOfProductMember" id="paa_ButanePositionContractsRelatedToSubsequentSaleOfProductMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ButtePipelineCompanyMember" id="paa_ButtePipelineCompanyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CanadianSeniorUnsecuredRevolvingCreditFacilityMember" id="paa_CanadianSeniorUnsecuredRevolvingCreditFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CanadianWithholdingTaxDistributionOnBehalfOfShareholders" id="paa_CanadianWithholdingTaxDistributionOnBehalfOfShareholders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CapitalExpenditure" id="paa_CapitalExpenditure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CaplineAndAssociatedTankageMember" id="paa_CaplineAndAssociatedTankageMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CasesFiledNumber" id="paa_CasesFiledNumber" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="CashFlowHedgeGainLossToBeReclassifiedInYearTwoAndThree" id="paa_CashFlowHedgeGainLossToBeReclassifiedInYearTwoAndThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CashFlowHedgeGainLossToBeReclassifiedRemainingPortion" id="paa_CashFlowHedgeGainLossToBeReclassifiedRemainingPortion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CashPaidRelatedToPurchasesOfLinefillAndBaseGas" id="paa_CashPaidRelatedToPurchasesOfLinefillAndBaseGas" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CashReceivedRelatedToSalesOfLinefillAndBaseGas" id="paa_CashReceivedRelatedToSalesOfLinefillAndBaseGas" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ChangeInAccountingEstimateOfDepreciableLivesEstimatedDepreciationExpenseReduction" id="paa_ChangeInAccountingEstimateOfDepreciableLivesEstimatedDepreciationExpenseReduction" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ChangeInAccountingEstimateOfDepreciableLivesEstimatedIncreaseInEarningsPerUnit" id="paa_ChangeInAccountingEstimateOfDepreciableLivesEstimatedIncreaseInEarningsPerUnit" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ChangeInAccountingEstimateOfDepreciableLivesIncrementalDepreciationExpenseReduction" id="paa_ChangeInAccountingEstimateOfDepreciableLivesIncrementalDepreciationExpenseReduction" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ChangesInAccumulatedOtherComprehensiveIncomeAxis" id="paa_ChangesInAccumulatedOtherComprehensiveIncomeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ChangesInAccumulatedOtherComprehensiveIncomeComponentsDomain" id="paa_ChangesInAccumulatedOtherComprehensiveIncomeComponentsDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ChangesInAccumulatedOtherComprehensiveIncomeLineItems" id="paa_ChangesInAccumulatedOtherComprehensiveIncomeLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ChangesInAccumulatedOtherComprehensiveIncomeTable" id="paa_ChangesInAccumulatedOtherComprehensiveIncomeTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassBActivityRollForward" id="paa_ClassBActivityRollForward" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CoIssuerOfDebtOwnershipPercentage" id="paa_CoIssuerOfDebtOwnershipPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="CommercialRefinedProductsSupplyAndMarketingBusinessMember" id="paa_CommercialRefinedProductsSupplyAndMarketingBusinessMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommissionPaidToSalesAgent" id="paa_CommissionPaidToSalesAgent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CommonUnitAndSeriesASubordinatedUnitMember" id="paa_CommonUnitAndSeriesASubordinatedUnitMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConcentrationRiskPercentageNotMet" id="paa_ConcentrationRiskPercentageNotMet" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="CondensedConsolidatingBalanceSheetLineItems" id="paa_CondensedConsolidatingBalanceSheetLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CondensedConsolidatingStatementsOfCashFlowsLineItems" id="paa_CondensedConsolidatingStatementsOfCashFlowsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CondensedConsolidatingStatementsOfOperationsLineItems" id="paa_CondensedConsolidatingStatementsOfOperationsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConocophillipsCompanyMember" id="paa_ConocophillipsCompanyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesTransferOfInterestByParent" id="paa_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesTransferOfInterestByParent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestDecreaseSaleOfInterestByParent" id="paa_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestDecreaseSaleOfInterestByParent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfModificationNetTableTextBlock" id="paa_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfModificationNetTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryTableTextBlock" id="paa_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConstructionOfPipelineCompleted" id="paa_ConstructionOfPipelineCompleted" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConversionNaturalGasToCrudeBarrelsDivisor" id="paa_ConversionNaturalGasToCrudeBarrelsDivisor" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ConversionOfSubordinatedUnitToCommonUnitsTerms" id="paa_ConversionOfSubordinatedUnitToCommonUnitsTerms" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConversionOfSubordinatedUnitsNumberOfConsecutiveQuartersOfDistributionRequired" id="paa_ConversionOfSubordinatedUnitsNumberOfConsecutiveQuartersOfDistributionRequired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConversionOfSubordinatedUnitsNumberOfConsecutiveQuartersOfDistributionSufficiencyRequired" id="paa_ConversionOfSubordinatedUnitsNumberOfConsecutiveQuartersOfDistributionSufficiencyRequired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConversionOfSubordinatedUnitsNumberOfConsecutiveYearsOfReachingRequiredThresholds" id="paa_ConversionOfSubordinatedUnitsNumberOfConsecutiveYearsOfReachingRequiredThresholds" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConversionOfSubordinatedUnitsNumberOfNonOverlappingQuartersOfDistributionAndEarningsThresholdsRequired" id="paa_ConversionOfSubordinatedUnitsNumberOfNonOverlappingQuartersOfDistributionAndEarningsThresholdsRequired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConversionOfSubordinatedUnitsNumberOfUnitsToBeConverted" id="paa_ConversionOfSubordinatedUnitsNumberOfUnitsToBeConverted" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="CostsReimbursedToGeneralPartner" id="paa_CostsReimbursedToGeneralPartner" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CreditFacilityExtensionPeriod" id="paa_CreditFacilityExtensionPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CrudeOilAndCondensatePipelineMiles" id="paa_CrudeOilAndCondensatePipelineMiles" type="num:lengthItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CrudeOilBasisDifferentialHedgesMember" id="paa_CrudeOilBasisDifferentialHedgesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AverageCrudeOilBasisLLSAndWTISwapsDifferentialHedgesMember" id="paa_AverageCrudeOilBasisLLSAndWTISwapsDifferentialHedgesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CrudeOilBasisLLSAndWTISwapsDifferentialHedgesMember" id="paa_CrudeOilBasisLLSAndWTISwapsDifferentialHedgesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CrudeOilDerivativeForAnticipatedSaleOfForeignCrudeVolume" id="paa_CrudeOilDerivativeForAnticipatedSaleOfForeignCrudeVolume" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="CrudeOilFuturesAndSwapsLongCallOptionMember" id="paa_CrudeOilFuturesAndSwapsLongCallOptionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CrudeOilFuturesAndSwapsLongPutOptionMember" id="paa_CrudeOilFuturesAndSwapsLongPutOptionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CrudeOilContractMember" id="paa_CrudeOilContractMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CrudeOilRefinedProductsAndNglPurchasesAndRelatedCostsBuySellTransactions" id="paa_CrudeOilRefinedProductsAndNglPurchasesAndRelatedCostsBuySellTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CrudeOilRefinedProductsAndNglSalesAndRelatedRevenuesBuySellTransactions" id="paa_CrudeOilRefinedProductsAndNglSalesAndRelatedRevenuesBuySellTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentCovenantRatioEBITDAToInterestAcquisitionPeriodMaximumDenominator" id="paa_DebtInstrumentCovenantRatioEBITDAToInterestAcquisitionPeriodMaximumDenominator" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentCovenantRatioEBITDAToInterestAcquisitionPeriodMaximumNumerator" id="paa_DebtInstrumentCovenantRatioEBITDAToInterestAcquisitionPeriodMaximumNumerator" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="DenominatorForBasicAndDilutedEarningsPerLimitedPartnerUnitAbstract" id="paa_DenominatorForBasicAndDilutedEarningsPerLimitedPartnerUnitAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="DistributionsAndExcessOverMinimumQuarterlyDistributionsAxis" id="paa_DistributionsAndExcessOverMinimumQuarterlyDistributionsAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="ExpenseForWithholdingTaxes" id="paa_ExpenseForWithholdingTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="FacilitiesSegmentRevenues" id="paa_FacilitiesSegmentRevenues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" id="paa_FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="ForeignFlowThroughEntitiesDeferredTaxExpensesBenefitOnBookVersusTaxDifferences" id="paa_ForeignFlowThroughEntitiesDeferredTaxExpensesBenefitOnBookVersusTaxDifferences" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ForeignIncomeTaxExpenseBenefitAtForeignStatutoryRate" id="paa_ForeignIncomeTaxExpenseBenefitAtForeignStatutoryRate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ForeignPeriodTaxOnBookVersusTaxDifferences" id="paa_ForeignPeriodTaxOnBookVersusTaxDifferences" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ForeignPeriodTaxOnPermanentBookVersusTaxDifferences" id="paa_ForeignPeriodTaxOnPermanentBookVersusTaxDifferences" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element name="ForwardStartingInterestRateSwapMember" id="paa_ForwardStartingInterestRateSwapMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ForwardStartingTenYearInterestRateSwapMember" id="paa_ForwardStartingTenYearInterestRateSwapMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ForwardStartingThirtyYearInterestRateSwapMember" id="paa_ForwardStartingThirtyYearInterestRateSwapMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FourForwardStartingTenYearInterestRateSwapMember" id="paa_FourForwardStartingTenYearInterestRateSwapMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FrontierPipelineCompanyMember" id="paa_FrontierPipelineCompanyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GOBonds2009Member" id="paa_GOBonds2009Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GOBonds2010Member" id="paa_GOBonds2010Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GainLossOnForeignCurrencyCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncome" id="paa_GainLossOnForeignCurrencyCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="GainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncome" id="paa_GainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="GainLossOnSaleOfLinefill" id="paa_GainLossOnSaleOfLinefill" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="GainLossOnSaleOfLinefillAndBaseGas" id="paa_GainLossOnSaleOfLinefillAndBaseGas" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="GainOnConversionsOfEquityMethodInvestment" id="paa_GainOnConversionsOfEquityMethodInvestment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="GainOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringReclassifiedToOtherIncomeExpenseNet" id="paa_GainOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringReclassifiedToOtherIncomeExpenseNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="GardendaleGatheringSystemAcquisitionMember" id="paa_GardendaleGatheringSystemAcquisitionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GeneralPartnerDistributionLevelOneMember" id="paa_GeneralPartnerDistributionLevelOneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GeneralPartnerDistributionLevelThreeMember" id="paa_GeneralPartnerDistributionLevelThreeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GeneralPartnerDistributionLevelTwoMember" id="paa_GeneralPartnerDistributionLevelTwoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GeneralPartnerExpensePolicyTextBlock" id="paa_GeneralPartnerExpensePolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GeneralPartnerIncentiveDistributionPaidOrToBePaidBasedOnCurrentPeriodEarnings" id="paa_GeneralPartnerIncentiveDistributionPaidOrToBePaidBasedOnCurrentPeriodEarnings" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="GeneralPartnerIncentiveDistributionPercentage" id="paa_GeneralPartnerIncentiveDistributionPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GeneralPartnerIncentiveDistributionThreshold" id="paa_GeneralPartnerIncentiveDistributionThreshold" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GeneralPartnerOwnershipInterestInNetIncomeLossAfterIncentiveDistribution" id="paa_GeneralPartnerOwnershipInterestInNetIncomeLossAfterIncentiveDistribution" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="GeneralPartnerOwnershipInterestInSubsidiary" id="paa_GeneralPartnerOwnershipInterestInSubsidiary" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="GoodwillPolicyTextBlock" id="paa_GoodwillPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GoodwillPurchasePriceAccountingAndOtherAdjustments" id="paa_GoodwillPurchasePriceAccountingAndOtherAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="GrantDateFairValueOfOutstandingClassBUnitsRollForward" id="paa_GrantDateFairValueOfOutstandingClassBUnitsRollForward" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GulfOpportunityZoneBondsMaturingIn2032Member" id="paa_GulfOpportunityZoneBondsMaturingIn2032Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GulfOpportunityZoneBondsMaturingIn2035Member" id="paa_GulfOpportunityZoneBondsMaturingIn2035Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="HurricaneInsuranceCoverage" id="paa_HurricaneInsuranceCoverage" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="IPOSaleOfStockNumberOfSharesIssuedAtClosingOverAllotmentOption" id="paa_IPOSaleOfStockNumberOfSharesIssuedAtClosingOverAllotmentOption" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InactiveSeniorUnsecuredRevolvingCreditFacilityMaturingIn2012Member" id="paa_InactiveSeniorUnsecuredRevolvingCreditFacilityMaturingIn2012Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InactiveThreeHundredSixtyFourDaySeniorUnsecuredCreditFacilityMember" id="paa_InactiveThreeHundredSixtyFourDaySeniorUnsecuredCreditFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncomeNotSubjectToForeignTax" id="paa_IncomeNotSubjectToForeignTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IncomeSubjectToForeignTax" id="paa_IncomeSubjectToForeignTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInAccumulatedOtherComprehensiveIncomeRollForward" id="paa_IncreaseDecreaseInAccumulatedOtherComprehensiveIncomeRollForward" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInLongTermInventories" id="paa_IncreaseDecreaseInLongTermInventories" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInShortTermInventories" id="paa_IncreaseDecreaseInShortTermInventories" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="InterestExpenseHedgedInventory" id="paa_InterestExpenseHedgedInventory" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="InterestRateContractAndCommodityContractMember" id="paa_InterestRateContractAndCommodityContractMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoryAxis" id="paa_InventoryAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoryByCategoryAbstract" id="paa_InventoryByCategoryAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoryCurrentAndNoncurrent" id="paa_InventoryCurrentAndNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="InventoryLineItems" id="paa_InventoryLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoryLinefillAndBaseGasAndLongTermInventoryDisclosureTextBlock" id="paa_InventoryLinefillAndBaseGasAndLongTermInventoryDisclosureTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoryLinefillAndBaseGasAndLongTermInventoryDisclosureAbstract" id="paa_InventoryLinefillAndBaseGasAndLongTermInventoryDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoryRelatedDisclosuresAbstract" id="paa_InventoryRelatedDisclosuresAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoryTable" id="paa_InventoryTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoryTypeDomain" id="paa_InventoryTypeDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoryVolumesCurrent" id="paa_InventoryVolumesCurrent" type="num:volumeItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="InventoryVolumesInBarrels" id="paa_InventoryVolumesInBarrels" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="InventoryVolumesInCubicFeet" id="paa_InventoryVolumesInCubicFeet" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="InventoryVolumesLinefillAndBaseGas" id="paa_InventoryVolumesLinefillAndBaseGas" type="num:volumeItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="InventoryVolumesNoncurrent" id="paa_InventoryVolumesNoncurrent" type="num:volumeItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="InventoryWeightedAveragePricePerUnit" id="paa_InventoryWeightedAveragePricePerUnit" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="InventoryWeightedAveragePricePerUnitCurrent" id="paa_InventoryWeightedAveragePricePerUnitCurrent" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="InventoryWeightedAveragePricePerUnitLinefillAndBaseGas" id="paa_InventoryWeightedAveragePricePerUnitLinefillAndBaseGas" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="InventoryWeightedAveragePricePerUnitNoncurrent" id="paa_InventoryWeightedAveragePricePerUnitNoncurrent" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="LPGMember" id="paa_LPGMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LandAndOtherMember" id="paa_LandAndOtherMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LeaseGatheringBusinessMember" id="paa_LeaseGatheringBusinessMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LengthOfPipelineIsolatedAndDepressurized" id="paa_LengthOfPipelineIsolatedAndDepressurized" type="num:lengthItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LiabilitiesAndPartnersCapitalAbstract" id="paa_LiabilitiesAndPartnersCapitalAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LiabilitiesForOutstandingChecks" id="paa_LiabilitiesForOutstandingChecks" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="LimitedPartnersUnitPricePerUnit" id="paa_LimitedPartnersUnitPricePerUnit" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LineOfCreditFacilityCommitmentFeePercentageMaximum" id="paa_LineOfCreditFacilityCommitmentFeePercentageMaximum" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LineOfCreditFacilityCommitmentFeePercentageMinimum" id="paa_LineOfCreditFacilityCommitmentFeePercentageMinimum" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LineOfCreditFacilityDebtToEBITDACoverageRatio" id="paa_LineOfCreditFacilityDebtToEBITDACoverageRatio" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LineOfCreditFacilityDebtToEBITDACoverageRatioDuringAcquisitionPeriod" id="paa_LineOfCreditFacilityDebtToEBITDACoverageRatioDuringAcquisitionPeriod" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LineOfCreditFacilityEBITDAToInterestCoverageRatioMinimum" id="paa_LineOfCreditFacilityEBITDAToInterestCoverageRatioMinimum" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LineOfCreditFacilityLengthOfAcquisitionPeriod" id="paa_LineOfCreditFacilityLengthOfAcquisitionPeriod" type="us-types:durationStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="LineOfCreditFacilityPeriodForActivationOfFacility" id="paa_LineOfCreditFacilityPeriodForActivationOfFacility" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LineOfCreditFacilityRenewalDate" id="paa_LineOfCreditFacilityRenewalDate" type="invest:dateStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LineOfCreditFacilityTenureOfFacility" id="paa_LineOfCreditFacilityTenureOfFacility" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LinefillAndBaseGas" id="paa_LinefillAndBaseGas" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="LinefillAndBaseGasVolumetricRatioOfMcfOfNaturalGasToBtuMinimum" id="paa_LinefillAndBaseGasVolumetricRatioOfMcfOfNaturalGasToBtuMinimum" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="LinefillAndBaseGasVolumetricRatioOfMcfOfNaturalGasToBtuMinimumDenominator" id="paa_LinefillAndBaseGasVolumetricRatioOfMcfOfNaturalGasToBtuMinimumDenominator" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LinefillAndBaseGasVolumetricRatioOfMcfOfNaturalGasToBtuMinimumNumerator" id="paa_LinefillAndBaseGasVolumetricRatioOfMcfOfNaturalGasToBtuMinimumNumerator" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LongPositionOnNaturalGasSwapsContractsMember" id="paa_LongPositionOnNaturalGasSwapsContractsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LongTermDebtMaturitiesOtherLongTermObligationsExcluded" id="paa_LongTermDebtMaturitiesOtherLongTermObligationsExcluded" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="LongTermDebtWeightedAverageLife" id="paa_LongTermDebtWeightedAverageLife" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LongTermIncentivePlansMember" id="paa_LongTermIncentivePlansMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LongTermObligationsExcludedFromCalculationOfMaturities" id="paa_LongTermObligationsExcludedFromCalculationOfMaturities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="LossContingencyCommitmentForEnvironmentProject" id="paa_LossContingencyCommitmentForEnvironmentProject" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="LossContingencyPenaltyOrFineAssessed" id="paa_LossContingencyPenaltyOrFineAssessed" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="LossContingencyProvisionForPenaltyPaid" id="paa_LossContingencyProvisionForPenaltyPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="LynxHoldingsILLCMember" id="paa_LynxHoldingsILLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MaintenanceCapital" id="paa_MaintenanceCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="MarathonPetroleumCorporationMember" id="paa_MarathonPetroleumCorporationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MaturityDateExtensionPeriod" id="paa_MaturityDateExtensionPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MaximumAggregateCommonStockOfferPrice" id="paa_MaximumAggregateCommonStockOfferPrice" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="MaximumMaturityOfCashEquivalentInvestmentsPeriod" id="paa_MaximumMaturityOfCashEquivalentInvestmentsPeriod" type="us-types:durationStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MaximumPercentageParticipationForDistributionInExcessOfThreshold" id="paa_MaximumPercentageParticipationForDistributionInExcessOfThreshold" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="May2012ContinuousOfferingProgramMember" id="paa_May2012ContinuousOfferingProgramMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="May2013ContinuousOfferingProgramMember" id="paa_May2013ContinuousOfferingProgramMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MinimumWorkingGasStorageCapacity" id="paa_MinimumWorkingGasStorageCapacity" type="num:volumeItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="MinorityInterestOwnershipPercentageAcquiredByNoncontrollingOwners" id="paa_MinorityInterestOwnershipPercentageAcquiredByNoncontrollingOwners" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="MississippiBusinessFinanceCorporationGulfOpportunityZoneIndustrialDevelopmentRevenueBondsSeries2009Member" id="paa_MississippiBusinessFinanceCorporationGulfOpportunityZoneIndustrialDevelopmentRevenueBondsSeries2009Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MississippiBusinessFinanceCorporationGulfOpportunityZoneIndustrialDevelopmentRevenueBondsSeries2010Member" id="paa_MississippiBusinessFinanceCorporationGulfOpportunityZoneIndustrialDevelopmentRevenueBondsSeries2010Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ModificationOfHoldingsByTrancheAxis" id="paa_ModificationOfHoldingsByTrancheAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ModificationOfHoldingsByTrancheDomain" id="paa_ModificationOfHoldingsByTrancheDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ModificationOfHoldingsUnitsModified" id="paa_ModificationOfHoldingsUnitsModified" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ModificationOfHoldingsUnitsPostModification" id="paa_ModificationOfHoldingsUnitsPostModification" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ModificationOfHoldingsUnitsPriorToModification" id="paa_ModificationOfHoldingsUnitsPriorToModification" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NGLMember" id="paa_NGLMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NaturalGasCallOptionMember" id="paa_NaturalGasCallOptionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NaturalGasMember" id="paa_NaturalGasMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NaturalResourcesContaminationDamagesSettled" id="paa_NaturalResourcesContaminationDamagesSettled" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="NetCashPaidReceivedForTerminatedInterestRateAndForeignCurrencyHedgingInstruments" id="paa_NetCashPaidReceivedForTerminatedInterestRateAndForeignCurrencyHedgingInstruments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NetIncomeLossAvailableToLimitedPartnersAfterAdjustmentForTwoClassMethodForMLP" id="paa_NetIncomeLossAvailableToLimitedPartnersAfterAdjustmentForTwoClassMethodForMLP" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="NetIncomeLossAvailableToLimitedPartnersAfterAdjustmentForTwoClassMethodForMLPDiluted" id="paa_NetIncomeLossAvailableToLimitedPartnersAfterAdjustmentForTwoClassMethodForMLPDiluted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="NetLongPositionOnCrudeOilDerivativeContractsMember" id="paa_NetLongPositionOnCrudeOilDerivativeContractsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetLongPositionOnNaturalGasSwapsContractsMember" id="paa_NetLongPositionOnNaturalGasSwapsContractsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetLongSwapPositionConsistingOfNYMEXAndICESwapsMember" id="paa_NetLongSwapPositionConsistingOfNYMEXAndICESwapsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetOperatingRevenue" id="paa_NetOperatingRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="NetProceedsFromRepaymentsOf364DayRevolvingCreditFacility" id="paa_NetProceedsFromRepaymentsOf364DayRevolvingCreditFacility" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NetProceedsFromRepaymentsOfRevolvingCreditFacilities" id="paa_NetProceedsFromRepaymentsOfRevolvingCreditFacilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NetProceedsFromRepaymentsOfShortTermLetterOfCreditAndHedgedInventoryFacility" id="paa_NetProceedsFromRepaymentsOfShortTermLetterOfCreditAndHedgedInventoryFacility" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NetProceedsFromRepaymentsOfSubsidiaryCreditFacilities" id="paa_NetProceedsFromRepaymentsOfSubsidiaryCreditFacilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NetShortSpreadPositionOfCalendarOfCallOptionMember" id="paa_NetShortSpreadPositionOfCalendarOfCallOptionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetShortSpreadPositionOfCalendarOfCallOptionRelatedToAnticipatedSalesOfNaturalGasMember" id="paa_NetShortSpreadPositionOfCalendarOfCallOptionRelatedToAnticipatedSalesOfNaturalGasMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetShortSpreadPositionOnAnticipatedCrudeOilLeaseGatheringPurchaseContractsMember" id="paa_NetShortSpreadPositionOnAnticipatedCrudeOilLeaseGatheringPurchaseContractsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetShortSwapPositionConsistingOfNYMEXAndICESwapsMember" id="paa_NetShortSwapPositionConsistingOfNYMEXAndICESwapsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NewAccountingPronouncementOrChangeInAccountingPrincipleNumberOfSeparateStatements" id="paa_NewAccountingPronouncementOrChangeInAccountingPrincipleNumberOfSeparateStatements" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NexenAcquisitionMember" id="paa_NexenAcquisitionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NonOfficerEmployeeLongTermIncentiveTrackingUnitPlanMember" id="paa_NonOfficerEmployeeLongTermIncentiveTrackingUnitPlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NoncashItemsAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther" id="paa_NoncashItemsAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NonmonetaryNotionalAmountOfPriceRiskDerivativesAveragePerDay" id="paa_NonmonetaryNotionalAmountOfPriceRiskDerivativesAveragePerDay" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NonmonetaryNotionalAmountOfPriceRiskDerivativesHedgedToManageTheRiskOfNotUtilizing" id="paa_NonmonetaryNotionalAmountOfPriceRiskDerivativesHedgedToManageTheRiskOfNotUtilizing" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NotionalPrincipalAmountOnWhichInterestSpreadWillBeCalculated" id="paa_NotionalPrincipalAmountOnWhichInterestSpreadWillBeCalculated" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="NumberOfAdditionalBusinessesAcquired" id="paa_NumberOfAdditionalBusinessesAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfCourtActionsInFederalCourt" id="paa_NumberOfCourtActionsInFederalCourt" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfDaysRequiredForDistributionToUnitholdersAfterEndOfQuarter" id="paa_NumberOfDaysRequiredForDistributionToUnitholdersAfterEndOfQuarter" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfInstallmentsToPayBusinessAcquisitionContingentConsideration" id="paa_NumberOfInstallmentsToPayBusinessAcquisitionContingentConsideration" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfInterestRateSwapsTerminateInAugust2014" id="paa_NumberOfInterestRateSwapsTerminateInAugust2014" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NumberOfInterestRateSwapsTerminateInJune2014" id="paa_NumberOfInterestRateSwapsTerminateInJune2014" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NumberOfNaturalGasStorageFacilities" id="paa_NumberOfNaturalGasStorageFacilities" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NumberOfOneYearExtensionsOfRevolvingCreditFacility" id="paa_NumberOfOneYearExtensionsOfRevolvingCreditFacility" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfTermLoans" id="paa_NumberOfTermLoans" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NumberOfPotentialConversionTranchesAfterAmendedAndRestatedAgreement" id="paa_NumberOfPotentialConversionTranchesAfterAmendedAndRestatedAgreement" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfPotentialConversionTranchesBeforeAmendedAndRestatedAgreement" id="paa_NumberOfPotentialConversionTranchesBeforeAmendedAndRestatedAgreement" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfPrincipalOwnersOfGeneralPartner" id="paa_NumberOfPrincipalOwnersOfGeneralPartner" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NumberOfSmallerCrudeOilReleases" id="paa_NumberOfSmallerCrudeOilReleases" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfStateCourtActionsConsolidatedIntoOne" id="paa_NumberOfStateCourtActionsConsolidatedIntoOne" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfTermBondsPurchase" id="paa_NumberOfTermBondsPurchase" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfTerminatedInterestRateSwaps" id="paa_NumberOfTerminatedInterestRateSwaps" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfYearsSourcingServicesForGasSupplyWillBeProvidedAfterAcquisition" id="paa_NumberOfYearsSourcingServicesForGasSupplyWillBeProvidedAfterAcquisition" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumeratorForBasicAndDilutedEarningsPerLimitedPartnerUnitAbstract" id="paa_NumeratorForBasicAndDilutedEarningsPerLimitedPartnerUnitAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OccidentalPetroleumCorporationMember" id="paa_OccidentalPetroleumCorporationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="Other2008AcquisitionsMember" id="paa_Other2008AcquisitionsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="Other2009AcquisitionsMember" id="paa_Other2009AcquisitionsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="Other2010AcquisitionsMember" id="paa_Other2010AcquisitionsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherAcquisitionsIn2011Member" id="paa_OtherAcquisitionsIn2011Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherAcquisitionsMember" id="paa_OtherAcquisitionsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherAgreementsMember" id="paa_OtherAgreementsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherAssetsNoncurrentCondensedConsolidatingFinancials" id="paa_OtherAssetsNoncurrentCondensedConsolidatingFinancials" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="OtherAssetsNoncurrentGross" id="paa_OtherAssetsNoncurrentGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="OtherComprehensiveIncomePartnershipsPortionOfEquityInvestee" id="paa_OtherComprehensiveIncomePartnershipsPortionOfEquityInvestee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="OtherConsolidatedEquityCompensationInformationAbstract" id="paa_OtherConsolidatedEquityCompensationInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherCurrentLiabilitiesMember" id="paa_OtherCurrentLiabilitiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherEquityOfferingsMember" id="paa_OtherEquityOfferingsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherLongTermAssetsMember" id="paa_OtherLongTermAssetsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherLongTermLiabilitiesMember" id="paa_OtherLongTermLiabilitiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherNoncurrentLongTermDebt" id="paa_OtherNoncurrentLongTermDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="OtherNonoperatingIncomeExpenseMember" id="paa_OtherNonoperatingIncomeExpenseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OutstandingUnitsEarnedRollForward" id="paa_OutstandingUnitsEarnedRollForward" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OutstandingUnitsRollForward" id="paa_OutstandingUnitsRollForward" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PAANaturalGasStorageAcquisitionMember" id="paa_PAANaturalGasStorageAcquisitionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PAANaturalGasStorageMember" id="paa_PAANaturalGasStorageMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PAAVulcanGasStorageMember" id="paa_PAAVulcanGasStorageMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGClassBUnitsMember" id="paa_PNGClassBUnitsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGGOBondTermLoansMember" id="paa_PNGGOBondTermLoansMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGGOZoneTermLoansMember" id="paa_PNGGOZoneTermLoansMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGGulfOpportunityTermLoanWeightedAverageInterestRate1.4PercentMember" id="paa_PNGGulfOpportunityTermLoanWeightedAverageInterestRate1.4PercentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGGulfOpportunityTermLoanWeightedAverageInterestRate1.6PercentMember" id="paa_PNGGulfOpportunityTermLoanWeightedAverageInterestRate1.6PercentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGLongTermIncentivePlanAwardsIncludingTransactionGrantsMember" id="paa_PNGLongTermIncentivePlanAwardsIncludingTransactionGrantsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGLongTermIncentivePlansMember" id="paa_PNGLongTermIncentivePlansMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGMember" id="paa_PNGMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EquityAwardsMember" id="paa_EquityAwardsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AwardsWithAMinimumVestingDateOfAugust2016Member" id="paa_AwardsWithAMinimumVestingDateOfAugust2016Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AwardsWithAMinimumVestingDateOfAugust2017Member" id="paa_AwardsWithAMinimumVestingDateOfAugust2017Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AwardsWithAMinimumVestingDateOfAugust2018Member" id="paa_AwardsWithAMinimumVestingDateOfAugust2018Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LiabilityAwardsMember" id="paa_LiabilityAwardsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGOmnibusAgreementMember" id="paa_PNGOmnibusAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGSeniorUnsecuredCreditFacilityMember" id="paa_PNGSeniorUnsecuredCreditFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGSeniorUnsecuredRevolvingCreditFacilityMember" id="paa_PNGSeniorUnsecuredRevolvingCreditFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PNGTransactionGrantsMember" id="paa_PNGTransactionGrantsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SpecialPAAAwardsMember" id="paa_SpecialPAAAwardsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PaaSeniorUnsecuredRevolvingCreditFacilityMaturingIn2014Member" id="paa_PaaSeniorUnsecuredRevolvingCreditFacilityMaturingIn2014Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PacificAtlanticTerminalsLLCMember" id="paa_PacificAtlanticTerminalsLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PacificEnergyPartnersLPMember" id="paa_PacificEnergyPartnersLPMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PacificPipelineSystemLLCMember" id="paa_PacificPipelineSystemLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ParticipatingSecuritiesDistributedAndUndistributedEarningsDiluted" id="paa_ParticipatingSecuritiesDistributedAndUndistributedEarningsDiluted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PartnerIncomeAllocationLineItems" id="paa_PartnerIncomeAllocationLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PartnersCapitalAccountLossOnFormationOfJointVenture" id="paa_PartnersCapitalAccountLossOnFormationOfJointVenture" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PartnersCapitalAccountUnitBasedCompensationClassBUnits" id="paa_PartnersCapitalAccountUnitBasedCompensationClassBUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PartnersCapitalAccountUnitBasedCompensationLongTermIncentivePlans" id="paa_PartnersCapitalAccountUnitBasedCompensationLongTermIncentivePlans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PartnersCapitalAccountUnitsIssuedUnitBasedCompensationLongTermIncentivePlans" id="paa_PartnersCapitalAccountUnitsIssuedUnitBasedCompensationLongTermIncentivePlans" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PartnersCapitalAndDistributionLineItems" id="paa_PartnersCapitalAndDistributionLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PartnersCapitalAndDistributionsDisclosureAbstract" id="paa_PartnersCapitalAndDistributionsDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PartnersCapitalAndDistributionsTable" id="paa_PartnersCapitalAndDistributionsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PartnersCapitalCashContributionMadeByCoVenturer" id="paa_PartnersCapitalCashContributionMadeByCoVenturer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PartnersCapitalIncludingPortionAttributableToNoncontrollingInterests" id="paa_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterests" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="PartnersCapitalIncreaseFromSubsidiaryStockIssuance" id="paa_PartnersCapitalIncreaseFromSubsidiaryStockIssuance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PartsAndSuppliesMember" id="paa_PartsAndSuppliesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PaymentsForPurchaseOfPrivatePlacementUnits" id="paa_PaymentsForPurchaseOfPrivatePlacementUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PemexExploracionyProduccionMember" id="paa_PemexExploracionyProduccionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PerUnitImpactToNetIncomeLossPerOutstandingLimitedPartnershipUnitBasic" id="paa_PerUnitImpactToNetIncomeLossPerOutstandingLimitedPartnershipUnitBasic" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PerUnitImpactToNetIncomeLossPerOutstandingLimitedPartnershipUnitDiluted" id="paa_PerUnitImpactToNetIncomeLossPerOutstandingLimitedPartnershipUnitDiluted" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageDistributionOfAvailableCash" id="paa_PercentageDistributionOfAvailableCash" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfCommissionPaidUnderEquityDistributionAgreementMaximum" id="paa_PercentageOfCommissionPaidUnderEquityDistributionAgreementMaximum" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfFaceValueAtWhichSeniorNotesAreSold" id="paa_PercentageOfFaceValueAtWhichSeniorNotesAreSold" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="PercentageOfOwnershipInEntityRelatedParty" id="paa_PercentageOfOwnershipInEntityRelatedParty" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PerformanceThresholdsAbstract" id="paa_PerformanceThresholdsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PeriodForReductionOfIncentive" id="paa_PeriodForReductionOfIncentive" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PeriodOfMaturitiesOfAdditionalNotionalPrincipalAmountOnWhichInterestSpreadWillBeCalculated" id="paa_PeriodOfMaturitiesOfAdditionalNotionalPrincipalAmountOnWhichInterestSpreadWillBeCalculated" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PeriodOfMaturitiesOfNotionalPrincipalAmountOnWhichInterestSpreadWillBeCalculated" id="paa_PeriodOfMaturitiesOfNotionalPrincipalAmountOnWhichInterestSpreadWillBeCalculated" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PeriodOfPurchaseOfHurricaneLimit" id="paa_PeriodOfPurchaseOfHurricaneLimit" type="us-types:durationStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PeriodOfSourcingServicesForGasSupplyWillBeProvidedAfterAcquisition" id="paa_PeriodOfSourcingServicesForGasSupplyWillBeProvidedAfterAcquisition" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PipelineTariffActivitiesTruckingAndRelatedRevenues" id="paa_PipelineTariffActivitiesTruckingAndRelatedRevenues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PipelineTariffActivitiesTruckingAndRelatedRevenuesMember" id="paa_PipelineTariffActivitiesTruckingAndRelatedRevenuesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PipelineTransportationCapacitySecuredFromThirdParties" id="paa_PipelineTransportationCapacitySecuredFromThirdParties" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="PlainsEagleFordPipelineLLCMember" id="paa_PlainsEagleFordPipelineLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PortionOfUnitsForWhichPerformanceThresholdsModified" id="paa_PortionOfUnitsForWhichPerformanceThresholdsModified" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PremiumAndDeductibleAsPercentageOfCoverageLimit" id="paa_PremiumAndDeductibleAsPercentageOfCoverageLimit" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="PremiumPerSiteForEnvironmentalInsurancePolicy" id="paa_PremiumPerSiteForEnvironmentalInsurancePolicy" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PriceRiskDerivativeAmountUsedToFundHedgeInventory" id="paa_PriceRiskDerivativeAmountUsedToFundHedgeInventory" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PrincipalOwnersOwnershipPercentageInterestInGeneralPartnership" id="paa_PrincipalOwnersOwnershipPercentageInterestInGeneralPartnership" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="PrincipalOwnersOwnershipPercentageInterestInGeneralPartnershipMaximumSizeOfSmallestOwnerInterest" id="paa_PrincipalOwnersOwnershipPercentageInterestInGeneralPartnershipMaximumSizeOfSmallestOwnerInterest" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="PriorPngSeniorUnsecuredRevolvingCreditFacilityMature2013Member" id="paa_PriorPngSeniorUnsecuredRevolvingCreditFacilityMature2013Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PriorSeniorSecuredHedgedInventoryDebtFacilityMaturingIn2011Member" id="paa_PriorSeniorSecuredHedgedInventoryDebtFacilityMaturingIn2011Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PriorSeniorSecuredHedgedInventoryFacilityMaturingIn2013Member" id="paa_PriorSeniorSecuredHedgedInventoryFacilityMaturingIn2013Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromFormationOfJointVenture" id="paa_ProceedsFromFormationOfJointVenture" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromPaymentsForOtherFinancingActivitiesCCFI" id="paa_ProceedsFromPaymentsForOtherFinancingActivitiesCCFI" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromRepaymentsOfIntercompanyDebt" id="paa_ProceedsFromRepaymentsOfIntercompanyDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromSaleOfLinefill" id="paa_ProceedsFromSaleOfLinefill" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PropertyTaxAbatementMember" id="paa_PropertyTaxAbatementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PurchaseOfStockParentPercentageOfOwnershipInSubsidiaryContributedInOffering" id="paa_PurchaseOfStockParentPercentageOfOwnershipInSubsidiaryContributedInOffering" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PurchasedAndOtherIntangiblesAssets" id="paa_PurchasedAndOtherIntangiblesAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="PurchasesAndRelatedCosts" id="paa_PurchasesAndRelatedCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PurchasesAndRelatedCostsMember" id="paa_PurchasesAndRelatedCostsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PurchasesAndRelatedCostsPolicyTextBlock" id="paa_PurchasesAndRelatedCostsPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RainbowPipelineCompanyMember" id="paa_RainbowPipelineCompanyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RainbowPipelineCrudeOilRelease" id="paa_RainbowPipelineCrudeOilRelease" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RainbowPipelineMember" id="paa_RainbowPipelineMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BaySpringsPipelineMember" id="paa_BaySpringsPipelineMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RangeOfAnnualizedVestingDistributionAmountDollarsFrom1.35ToDollars1.55Member" id="paa_RangeOfAnnualizedVestingDistributionAmountDollarsFrom1.35ToDollars1.55Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RangeOfAnnualizedVestingDistributionAmountDollarsFrom1.925ToDollars2.40Member" id="paa_RangeOfAnnualizedVestingDistributionAmountDollarsFrom1.925ToDollars2.40Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RangeOfAnnualizedVestingDistributionAmountDollarsFrom1.55ToDollars1.90Member" id="paa_RangeOfAnnualizedVestingDistributionAmountDollarsFrom1.55ToDollars1.90Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RangelandPipelineReleaseMember" id="paa_RangelandPipelineReleaseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RatioForConversionOfNaturalGasVolumeToBarrels" id="paa_RatioForConversionOfNaturalGasVolumeToBarrels" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RecentAccountingPronouncementsDisclosureAbstract" id="paa_RecentAccountingPronouncementsDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ReconciliationOfOperatingProfitLossFromSegmentsToNetIncomeAttributableToParentTableTextBlock" id="paa_ReconciliationOfOperatingProfitLossFromSegmentsToNetIncomeAttributableToParentTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ReductionInAllIncentiveDistributions" id="paa_ReductionInAllIncentiveDistributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ReductionInFutureIncentiveDistributionsInNextTwelveMonths" id="paa_ReductionInFutureIncentiveDistributionsInNextTwelveMonths" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ReductionInIncentiveDistributionsToDate" id="paa_ReductionInIncentiveDistributionsToDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ReductionInIncentiveDistributionsAbstract" id="paa_ReductionInIncentiveDistributionsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ReductionInIncentiveDistributionsPerQuarterAfterFebruary2014" id="paa_ReductionInIncentiveDistributionsPerQuarterAfterFebruary2014" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ReductionInIncentiveDistributionsPerQuarterThroughFebruary2014" id="paa_ReductionInIncentiveDistributionsPerQuarterThroughFebruary2014" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="RefinedProductsMember" id="paa_RefinedProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyOwnershipInterestInGeneralPartnerPercentage" id="paa_RelatedPartyOwnershipInterestInGeneralPartnerPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="RelatedPartyOwnershipInterestInGeneralPartnerPercentageSold" id="paa_RelatedPartyOwnershipInterestInGeneralPartnerPercentageSold" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyOwnershipPercentageInGeneralPartner" id="paa_RelatedPartyOwnershipPercentageInGeneralPartner" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyOwnershipPercentageInGeneralPartnerPriorToTransaction" id="paa_RelatedPartyOwnershipPercentageInGeneralPartnerPriorToTransaction" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyTransactionAnnualAdministrativeServicesFee" id="paa_RelatedPartyTransactionAnnualAdministrativeServicesFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyTransactionAnnualAdministrativeServicesFeeEffectiveStartDate" id="paa_RelatedPartyTransactionAnnualAdministrativeServicesFeeEffectiveStartDate" type="invest:dateStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="RelatedPartyTransactionAnnualAdministrativeServicesFeeEffectiveTerminationDate" id="paa_RelatedPartyTransactionAnnualAdministrativeServicesFeeEffectiveTerminationDate" type="invest:dateStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="RelatedPartyTransactionAnnualAdministrativeServicesFeeSuccessiveRenewalPeriodInYears" id="paa_RelatedPartyTransactionAnnualAdministrativeServicesFeeSuccessiveRenewalPeriodInYears" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyTransactionCreditFacilityEnteredUponAcquisition" id="paa_RelatedPartyTransactionCreditFacilityEnteredUponAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="RelatedPartyTransactionEnvironmentalIndemnificationsCap" id="paa_RelatedPartyTransactionEnvironmentalIndemnificationsCap" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyTransactionEnvironmentalIndemnificationsCapTimePeriod" id="paa_RelatedPartyTransactionEnvironmentalIndemnificationsCapTimePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyTransactionEnvironmentalRemediationCostsFirstCostsAmountIncurredByRelatedParty" id="paa_RelatedPartyTransactionEnvironmentalRemediationCostsFirstCostsAmountIncurredByRelatedParty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyTransactionInitialCashInvestmentInAcquiredEntity" id="paa_RelatedPartyTransactionInitialCashInvestmentInAcquiredEntity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="RelatedPartyTransactionNetContributions" id="paa_RelatedPartyTransactionNetContributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyTransactionPurchasePriceOfAcquiredEntity" id="paa_RelatedPartyTransactionPurchasePriceOfAcquiredEntity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="RelatedPartyTransactionTransitionServicesAndAssistanceFee" id="paa_RelatedPartyTransactionTransitionServicesAndAssistanceFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartyTransactionsDisclosureAbstract" id="paa_RelatedPartyTransactionsDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RemediationCostsIncurredSinceBusinessAcquired" id="paa_RemediationCostsIncurredSinceBusinessAcquired" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RestatementToPriorYearCashFlowsTableTextBlock" id="paa_RestatementToPriorYearCashFlowsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RevenuesAndPurchasesRelatedPartiesTableTextBlock" id="paa_RevenuesAndPurchasesRelatedPartiesTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RevenuesNetMember" id="paa_RevenuesNetMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RobinsonLakePipelineMember" id="paa_RobinsonLakePipelineMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RockyMountainPipelinesSystemLlcMember" id="paa_RockyMountainPipelinesSystemLlcMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SLCPipelineLLCMember" id="paa_SLCPipelineLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SaleOfStockAxis" id="paa_SaleOfStockAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SaleOfStockConsiderationReceivedOnTransactionFromParent" id="paa_SaleOfStockConsiderationReceivedOnTransactionFromParent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="SaleOfStockNumberOfSharesIssuedToParentInTransaction" id="paa_SaleOfStockNumberOfSharesIssuedToParentInTransaction" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SaleOfStockPercentOfEquityIssuedInTransaction" id="paa_SaleOfStockPercentOfEquityIssuedInTransaction" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SalesAndRelatedRevenues" id="paa_SalesAndRelatedRevenues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="SalesAndRelatedRevenuesMember" id="paa_SalesAndRelatedRevenuesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfBusinessAcquisitionPurchasePriceAcquisition2TextBlock" id="paa_ScheduleOfBusinessAcquisitionPurchasePriceAcquisition2TextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfBusinessAcquisitionPurchasePriceTableTextBlock" id="paa_ScheduleOfBusinessAcquisitionPurchasePriceTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfCapitalUnitsIssuedDuringPeriodTableTextBlock" id="paa_ScheduleOfCapitalUnitsIssuedDuringPeriodTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfChangesInMinorityInterestInPartnersCapitalTableTextBlock" id="paa_ScheduleOfChangesInMinorityInterestInPartnersCapitalTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfCondensedConsolidatingBalanceSheetTableTextBlock" id="paa_ScheduleOfCondensedConsolidatingBalanceSheetTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfCondensedConsolidatingStatementsOfCashFlowsTableTextBlock" id="paa_ScheduleOfCondensedConsolidatingStatementsOfCashFlowsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfCondensedConsolidatingStatementsOfOperationsTableTextBlock" id="paa_ScheduleOfCondensedConsolidatingStatementsOfOperationsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfDebtInstrumentsTable" id="paa_ScheduleOfDebtInstrumentsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfFairValueOfAssetsAndLiabilitiesBusinessAcquisitionTableTextBlock" id="paa_ScheduleOfFairValueOfAssetsAndLiabilitiesBusinessAcquisitionTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfInventoryLinefillAndBaseGasAndLongTermInventoryTableTextBlock" id="paa_ScheduleOfInventoryLinefillAndBaseGasAndLongTermInventoryTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfLongLivedAssetsByGeographicalAreasTableTextBlock" id="paa_ScheduleOfLongLivedAssetsByGeographicalAreasTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfLongTermIncentivePlanAwardsOfSubsidiaryOutstandingAndExpectedToVestTableTextBlock" id="paa_ScheduleOfLongTermIncentivePlanAwardsOfSubsidiaryOutstandingAndExpectedToVestTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfLongTermIncentivePlanAwardsOutstandingAndExpectedToVestTableTextBlock" id="paa_ScheduleOfLongTermIncentivePlanAwardsOutstandingAndExpectedToVestTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfOperationalAndFinancialConditionsNecessaryForConversionOfSubordinatedUnitsTableTextBlock" id="paa_ScheduleOfOperationalAndFinancialConditionsNecessaryForConversionOfSubordinatedUnitsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfPerUnitImpactOfAdditionalParticipationInUndistributedEarningsToEarningsPerUnitBasicAndDilutedTableTextBlock" id="paa_ScheduleOfPerUnitImpactOfAdditionalParticipationInUndistributedEarningsToEarningsPerUnitBasicAndDilutedTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfPurchasePriceAllocationOtherTableTextBlock" id="paa_ScheduleOfPurchasePriceAllocationOtherTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfReductionInIncentiveDistributionsRelatedToAcquisitionsTableTextBlock" id="paa_ScheduleOfReductionInIncentiveDistributionsRelatedToAcquisitionsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfRevenuesFromExternalCustomersByGeographicalAreasTableTextBlock" id="paa_ScheduleOfRevenuesFromExternalCustomersByGeographicalAreasTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAmortizationTableTextBlock" id="paa_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAmortizationTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfShareBasedCompensationClassBUnitsAwardActivityTableTextBlock" id="paa_ScheduleOfShareBasedCompensationClassBUnitsAwardActivityTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfShareBasedPaymentAwardsExpenseTableTextBlock" id="paa_ScheduleOfShareBasedPaymentAwardsExpenseTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfShareBasedPaymentAwardsExpensesTableTextBlock" id="paa_ScheduleOfShareBasedPaymentAwardsExpensesTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfValuationAndQualifyingAccountsTableTextBlock" id="paa_ScheduleOfValuationAndQualifyingAccountsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalSettlementFairValue" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalSettlementFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReservedForFutureGrantsOutstanding" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReservedForFutureGrantsOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
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  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodGrantDateFairValue" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodGrantDateFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingThereafter" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingThereafter" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeituresInPeriod" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeituresInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPeriodPriorToEachVestingDateForWhichAverageAnnualizedDistributionThresholdMustBeMaintained" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardPeriodPriorToEachVestingDateForWhichAverageAnnualizedDistributionThresholdMustBeMaintained" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherShareIncreaseDecreaseStockSplit" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherShareIncreaseDecreaseStockSplit" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherSharesAvailableForIssuanceIncreaseDecreaseStockSplit" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherSharesAvailableForIssuanceIncreaseDecreaseStockSplit" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfVestingRequirementsReducedDueToStockSplit" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfVestingRequirementsReducedDueToStockSplit" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedInPeriodSettledInCash" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedInPeriodSettledInCash" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedInPeriodTaxWithholding" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedInPeriodTaxWithholding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingAfterFifthAnniversaryOfDateOfGrantPercentage" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingAfterFifthAnniversaryOfDateOfGrantPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingOfEarnedUnitsOnFifthAnniversaryOfDateOfGrantPercentage" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingOfEarnedUnitsOnFifthAnniversaryOfDateOfGrantPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationByShareBasedPaymentAwardPerformanceBasedUnitsProbableAnnualizedDistributionLevel" id="paa_ShareBasedCompensationByShareBasedPaymentAwardPerformanceBasedUnitsProbableAnnualizedDistributionLevel" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesOutstandingUnderEquityCompensationPlansByAnnualizedDistributionLowerRangeLimit" id="paa_ShareBasedCompensationSharesOutstandingUnderEquityCompensationPlansByAnnualizedDistributionLowerRangeLimit" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="ShareBasedCompensationSharesAuthorizedUnderEquityCompensationPlansPeriodAfterDistributionEarned" id="paa_ShareBasedCompensationSharesAuthorizedUnderEquityCompensationPlansPeriodAfterDistributionEarned" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesOutstandingUnderEquityCompensationPlansByAnnualizedVestingDistributionRangeAxis" id="paa_ShareBasedCompensationSharesOutstandingUnderEquityCompensationPlansByAnnualizedVestingDistributionRangeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesOutstandingUnderEquityCompensationPlansByAnnualizedVestingDistributionRangeDomain" id="paa_ShareBasedCompensationSharesOutstandingUnderEquityCompensationPlansByAnnualizedVestingDistributionRangeDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShellOilProductsAssetAcquisitionMember" id="paa_ShellOilProductsAssetAcquisitionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShortPropanePositionContractsRelatedToSubsequentSaleOfProductMember" id="paa_ShortPropanePositionContractsRelatedToSubsequentSaleOfProductMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShortTermBorrowingsRepaymentPeriod" id="paa_ShortTermBorrowingsRepaymentPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SixForwardStartingThirtyYearInterestRateSwapMember" id="paa_SixForwardStartingThirtyYearInterestRateSwapMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SouthernDistrictOfTexasPipelineReleasesMember" id="paa_SouthernDistrictOfTexasPipelineReleasesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SouthernPinesAcquisitionMember" id="paa_SouthernPinesAcquisitionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StandbyLetterOfCreditIssuancePeriodUpperLimit" id="paa_StandbyLetterOfCreditIssuancePeriodUpperLimit" type="us-types:durationStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="StatementOfChangesInAccumulatedOtherComprehensiveIncomeAbstract" id="paa_StatementOfChangesInAccumulatedOtherComprehensiveIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StorageAndTerminalFacilitiesMember" id="paa_StorageAndTerminalFacilitiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="StorageCapacityUnderLease" id="paa_StorageCapacityUnderLease" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
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  <xsd:element name="SubordinatedUnitsDistributionAvailableThresholdAnnualized" id="paa_SubordinatedUnitsDistributionAvailableThresholdAnnualized" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="SubordinatedUnitsDistributionReceivedThresholdAnnualized" id="paa_SubordinatedUnitsDistributionReceivedThresholdAnnualized" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubordinatedUnitsDistributionReceivedThresholdQuarterly" id="paa_SubordinatedUnitsDistributionReceivedThresholdQuarterly" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="SubsidiaryProceedsFromGeneralPartnerContribution" id="paa_SubsidiaryProceedsFromGeneralPartnerContribution" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element name="TenForwardStartingThirtyYearInterestRateSwapMember" id="paa_TenForwardStartingThirtyYearInterestRateSwapMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TexasNewMexicoMember" id="paa_TexasNewMexicoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ThreeHundredSixtyFourDaySeniorUnsecuredCreditFacilityMember" id="paa_ThreeHundredSixtyFourDaySeniorUnsecuredCreditFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="TirzahLPGStorageFacilityAndOtherAssetsMember" id="paa_TirzahLPGStorageFacilityAndOtherAssetsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="VolumeOfGasStorageCapacity" id="paa_VolumeOfGasStorageCapacity" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="VolumeOfInjectionCapacity" id="paa_VolumeOfInjectionCapacity" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="VolumeOfWithdrawalCapacity" id="paa_VolumeOfWithdrawalCapacity" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
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  <xsd:element name="NumberOfDerivativesHeldWithCreditRiskRelatedContingentFeatures" id="paa_NumberOfDerivativesHeldWithCreditRiskRelatedContingentFeatures" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
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  <xsd:element name="QuarterlyDistributionForVestingOfDistributionEquivalentRightsAssociatedWithAwards" id="paa_QuarterlyDistributionForVestingOfDistributionEquivalentRightsAssociatedWithAwards" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestedInPeriodCashSettled" id="paa_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestedInPeriodCashSettled" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element name="TotalCostToCleanUpAndRemediateSiteBeforeInsuranceRecoveries" id="paa_TotalCostToCleanUpAndRemediateSiteBeforeInsuranceRecoveries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
</xsd:schema>
