<?xml version="1.0" encoding="us-ascii"?>
<!--Generated by Disclosure Solutions PROFILE 2.5.3.0 Copyright 1995 - 2013 Thomson Reuters Accelus. All rights reserved.-->
<xs:schema targetNamespace="http://targaresourcescorp.com/20140331" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:trgp="http://targaresourcescorp.com/20140331" xmlns:us-types="http://fasb.org/us-types/2013-01-31" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:invest="http://xbrl.sec.gov/invest/2013-01-31" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:dei="http://xbrl.sec.gov/dei/2013-01-31">
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xlink:type="simple" xlink:href="trgp-20140331_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="trgp-20140331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="trgp-20140331_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="trgp-20140331_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:roleType roleURI="http://targaresourcescorp.com/role/DocumentAndEntityInformation" id="DocumentAndEntityInformation">
        <link:definition>000100 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/ConsolidatedBalanceSheetsUnaudited" id="ConsolidatedBalanceSheetsUnaudited">
        <link:definition>010000 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/ConsolidatedBalanceSheetsUnauditedParenthetical" id="ConsolidatedBalanceSheetsUnauditedParenthetical">
        <!--Parent Role: CONSOLIDATED BALANCE SHEETS (Unaudited)-->
        <link:definition>010100 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/ConsolidatedStatementsOfOperationsUnaudited" id="ConsolidatedStatementsOfOperationsUnaudited">
        <link:definition>020000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossUnaudited" id="ConsolidatedStatementsOfComprehensiveIncomeLossUnaudited">
        <link:definition>030000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/ConsolidatedStatementsOfChangesInOwnersEquityUnaudited" id="ConsolidatedStatementsOfChangesInOwnersEquityUnaudited">
        <link:definition>040000 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN OWNERS' EQUITY (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/ConsolidatedStatementsOfCashFlowsUnaudited" id="ConsolidatedStatementsOfCashFlowsUnaudited">
        <link:definition>050000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/Organization" id="Organization">
        <link:definition>060100 - Disclosure - Organization</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/BasisOfPresentation" id="BasisOfPresentation">
        <link:definition>060200 - Disclosure - Basis of Presentation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/SignificantAccountingPolicies" id="SignificantAccountingPolicies">
        <link:definition>060300 - Disclosure - Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/Inventories" id="Inventories">
        <link:definition>060400 - Disclosure - Inventories</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/PropertyPlantAndEquipmentAndIntangibleAssets" id="PropertyPlantAndEquipmentAndIntangibleAssets">
        <link:definition>060500 - Disclosure - Property, Plant and Equipment and Intangible Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/AssetRetirementObligations" id="AssetRetirementObligations">
        <link:definition>060600 - Disclosure - Asset Retirement Obligations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/InvestmentInUnconsolidatedAffiliate" id="InvestmentInUnconsolidatedAffiliate">
        <link:definition>060700 - Disclosure - Investment in Unconsolidated Affiliate</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/AccountsPayableAndAccruedLiabilities" id="AccountsPayableAndAccruedLiabilities">
        <link:definition>060800 - Disclosure - Accounts Payable and Accrued Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/DebtObligations" id="DebtObligations">
        <link:definition>060900 - Disclosure - Debt Obligations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/PartnershipUnitsAndRelatedMatters" id="PartnershipUnitsAndRelatedMatters">
        <link:definition>061000 - Disclosure - Partnership Units and Related Matters</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/CommonStockAndRelatedMatters" id="CommonStockAndRelatedMatters">
        <link:definition>061100 - Disclosure - Common Stock and Related Matters</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/EarningsPerCommonShare" id="EarningsPerCommonShare">
        <link:definition>061200 - Disclosure - Earnings per Common Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/DerivativeInstrumentsAndHedgingActivities" id="DerivativeInstrumentsAndHedgingActivities">
        <link:definition>061300 - Disclosure - Derivative Instruments and Hedging Activities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/FairValueMeasurements" id="FairValueMeasurements">
        <link:definition>061400 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/RelatedPartyTransactions" id="RelatedPartyTransactions">
        <link:definition>061500 - Disclosure - Related Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/CommitmentsAndContingencies" id="CommitmentsAndContingencies">
        <link:definition>061600 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/SupplementalCashFlowInformation" id="SupplementalCashFlowInformation">
        <link:definition>061700 - Disclosure - Supplemental Cash Flow Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/SegmentInformation" id="SegmentInformation">
        <link:definition>061800 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/BasisOfPresentationPolicies" id="BasisOfPresentationPolicies">
        <!--Parent Role: Basis of Presentation-->
        <link:definition>070200 - Disclosure - Basis of Presentation (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/SignificantAccountingPoliciesPolicies" id="SignificantAccountingPoliciesPolicies">
        <!--Parent Role: Significant Accounting Policies-->
        <link:definition>070300 - Disclosure - Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/BasisOfPresentationTables" id="BasisOfPresentationTables">
        <!--Parent Role: Basis of Presentation-->
        <link:definition>080200 - Disclosure - Basis of Presentation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/InventoriesTables" id="InventoriesTables">
        <!--Parent Role: Inventories-->
        <link:definition>080400 - Disclosure - Inventories (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/PropertyPlantAndEquipmentAndIntangibleAssetsTables" id="PropertyPlantAndEquipmentAndIntangibleAssetsTables">
        <!--Parent Role: Property, Plant and Equipment and Intangible Assets-->
        <link:definition>080500 - Disclosure - Property, Plant and Equipment and Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/AssetRetirementObligationsTables" id="AssetRetirementObligationsTables">
        <!--Parent Role: Asset Retirement Obligations-->
        <link:definition>080600 - Disclosure - Asset Retirement Obligations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/InvestmentInUnconsolidatedAffiliateTables" id="InvestmentInUnconsolidatedAffiliateTables">
        <!--Parent Role: Investment in Unconsolidated Affiliate-->
        <link:definition>080700 - Disclosure - Investment in Unconsolidated Affiliate (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/AccountsPayableAndAccruedLiabilitiesTables" id="AccountsPayableAndAccruedLiabilitiesTables">
        <!--Parent Role: Accounts Payable and Accrued Liabilities-->
        <link:definition>080801 - Disclosure - Accounts Payable and Accrued Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/DebtObligationsTables" id="DebtObligationsTables">
        <!--Parent Role: Debt Obligations-->
        <link:definition>080900 - Disclosure - Debt Obligations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/PartnershipUnitsAndRelatedMattersTables" id="PartnershipUnitsAndRelatedMattersTables">
        <!--Parent Role: Partnership Units and Related Matters-->
        <link:definition>081000 - Disclosure - Partnership Units and Related Matters (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/CommonStockAndRelatedMattersTables" id="CommonStockAndRelatedMattersTables">
        <!--Parent Role: Common Stock and Related Matters-->
        <link:definition>081100 - Disclosure - Common Stock and Related Matters (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/EarningsPerCommonShareTables" id="EarningsPerCommonShareTables">
        <!--Parent Role: Earnings per Common Share-->
        <link:definition>081200 - Disclosure - Earnings per Common Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/DerivativeInstrumentsAndHedgingActivitiesTables" id="DerivativeInstrumentsAndHedgingActivitiesTables">
        <!--Parent Role: Derivative Instruments and Hedging Activities-->
        <link:definition>081300 - Disclosure - Derivative Instruments and Hedging Activities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/FairValueMeasurementsTables" id="FairValueMeasurementsTables">
        <!--Parent Role: Fair Value Measurements-->
        <link:definition>081400 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/SupplementalCashFlowInformationTables" id="SupplementalCashFlowInformationTables">
        <!--Parent Role: Supplemental Cash Flow Information-->
        <link:definition>081700 - Disclosure - Supplemental Cash Flow Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/SegmentInformationTables" id="SegmentInformationTables">
        <!--Parent Role: Segment Information-->
        <link:definition>081800 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/BasisOfPresentationDetails" id="BasisOfPresentationDetails">
        <!--Parent Role: Basis of Presentation-->
        <link:definition>090200 - Disclosure - Basis of Presentation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/InventoriesDetails" id="InventoriesDetails">
        <!--Parent Role: Inventories-->
        <link:definition>090400 - Disclosure - Inventories (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/PropertyPlantAndEquipmentAndIntangibleAssetsDetails" id="PropertyPlantAndEquipmentAndIntangibleAssetsDetails">
        <!--Parent Role: Property, Plant and Equipment and Intangible Assets-->
        <link:definition>090500 - Disclosure - Property, Plant and Equipment and Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/AssetRetirementObligationsDetails" id="AssetRetirementObligationsDetails">
        <!--Parent Role: Asset Retirement Obligations-->
        <link:definition>090600 - Disclosure - Asset Retirement Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/InvestmentInUnconsolidatedAffiliateDetails" id="InvestmentInUnconsolidatedAffiliateDetails">
        <!--Parent Role: Investment in Unconsolidated Affiliate-->
        <link:definition>090700 - Disclosure - Investment in Unconsolidated Affiliate (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/AccountsPayableAndAccruedLiabilitiesDetails" id="AccountsPayableAndAccruedLiabilitiesDetails">
        <!--Parent Role: Accounts Payable and Accrued Liabilities-->
        <link:definition>090802 - Disclosure - Accounts Payable and Accrued Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/DebtObligationsDetails" id="DebtObligationsDetails">
        <!--Parent Role: Debt Obligations-->
        <link:definition>090900 - Disclosure - Debt Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/PartnershipUnitsAndRelatedMattersDetails" id="PartnershipUnitsAndRelatedMattersDetails">
        <!--Parent Role: Partnership Units and Related Matters-->
        <link:definition>091000 - Disclosure - Partnership Units and Related Matters (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/CommonStockAndRelatedMattersDetails" id="CommonStockAndRelatedMattersDetails">
        <!--Parent Role: Common Stock and Related Matters-->
        <link:definition>091100 - Disclosure - Common Stock and Related Matters (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/EarningsPerCommonShareDetails" id="EarningsPerCommonShareDetails">
        <!--Parent Role: Earnings per Common Share-->
        <link:definition>091200 - Disclosure - Earnings per Common Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/DerivativeInstrumentsAndHedgingActivitiesDetails" id="DerivativeInstrumentsAndHedgingActivitiesDetails">
        <!--Parent Role: Derivative Instruments and Hedging Activities-->
        <link:definition>091300 - Disclosure - Derivative Instruments and Hedging Activities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/DerivativeInstrumentsAndHedgingActivitiesDerivativeInstrumentsAndHedgingActivitiesFairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeDetails" id="DerivativeInstrumentsAndHedgingActivitiesDerivativeInstrumentsAndHedgingActivitiesFairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeDetails">
        <!--Parent Role: Derivative Instruments and Hedging Activities-->
        <link:definition>091302 - Disclosure - Derivative Instruments and Hedging Activities, Derivative Instruments and Hedging Activities, Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/DerivativeInstrumentsAndHedgingActivitiesDerivativeInstrumentsAndHedgingActivitiesDerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskDetails" id="DerivativeInstrumentsAndHedgingActivitiesDerivativeInstrumentsAndHedgingActivitiesDerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskDetails">
        <!--Parent Role: Derivative Instruments and Hedging Activities-->
        <link:definition>091304 - Disclosure - Derivative Instruments and Hedging Activities, Derivative Instruments and Hedging Activities, Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/FairValueMeasurementsDetails" id="FairValueMeasurementsDetails">
        <!--Parent Role: Fair Value Measurements-->
        <link:definition>091400 - Disclosure - Fair Value Measurements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/SupplementalCashFlowInformationDetails" id="SupplementalCashFlowInformationDetails">
        <!--Parent Role: Supplemental Cash Flow Information-->
        <link:definition>091700 - Disclosure - Supplemental Cash Flow Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://targaresourcescorp.com/role/SegmentInformationDetails" id="SegmentInformationDetails">
        <!--Parent Role: Segment Information-->
        <link:definition>091800 - Disclosure - Segment Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:import namespace="http://fasb.org/us-gaap/2013-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/dei/2013-01-31" schemaLocation="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/country/2013-01-31" schemaLocation="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/currency/2012-01-31" schemaLocation="http://xbrl.sec.gov/currency/2012/currency-2012-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/exch/2013-01-31" schemaLocation="http://xbrl.sec.gov/exch/2013/exch-2013-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/naics/2011-01-31" schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xs:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xs:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" />
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xs:import namespace="http://www.xbrl.org/2004/ref" schemaLocation="http://www.xbrl.org/2004/ref-2004-08-10.xsd" />
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xs:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xs:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xs:import namespace="http://fasb.org/us-types/2013-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2013/elts/us-types-2013-01-31.xsd" />
  <xs:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xs:element name="CommonStockAndRelatedMattersTextBlock" id="trgp_CommonStockAndRelatedMattersTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ScheduleOfRangeOfInterestRatesPaidAndWeightedAverageInterestRatePaidOnVariableRateDebtObligationsTableTextBlock" id="trgp_ScheduleOfRangeOfInterestRatesPaidAndWeightedAverageInterestRatePaidOnVariableRateDebtObligationsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="TriSeniorRevolvingCreditFacilityDue2014TermLoanFacilityMember" id="trgp_TriSeniorRevolvingCreditFacilityDue2014TermLoanFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TwoThousandThirteenAugustEquityDistributionAgreementMember" id="trgp_TwoThousandThirteenAugustEquityDistributionAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TwoThousandThirteenEquityDistributionAgreementMember" id="trgp_TwoThousandThirteenEquityDistributionAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TwoThousandTwelveEquityDistributionAgreementMember" id="trgp_TwoThousandTwelveEquityDistributionAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TriSeniorRevolvingCreditFacilityDue2014Member" id="trgp_TriSeniorRevolvingCreditFacilityDue2014Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PartnershipEquityAbstract" id="trgp_PartnershipEquityAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="NumberOfDaysFromEndOfEachQuarterByWhenCashIsDistributedToUnitHolders" id="trgp_NumberOfDaysFromEndOfEachQuarterByWhenCashIsDistributedToUnitHolders" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="DividendOrDistributionToParent" id="trgp_DividendOrDistributionToParent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="GeneralPartnerContributedToMaintainGeneralPartnerOwnershipPercentage" id="trgp_GeneralPartnerContributedToMaintainGeneralPartnerOwnershipPercentage" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="AggregateAmountOfDebtOrEquitySecuritiesAllowedUnderShelfAgreement" id="trgp_AggregateAmountOfDebtOrEquitySecuritiesAllowedUnderShelfAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="NetProceedsFromIssuanceOfCommonLimitedPartnersUnits" id="trgp_NetProceedsFromIssuanceOfCommonLimitedPartnersUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="TargaResourcesLpMember" id="trgp_TargaResourcesLpMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="VersadoSystemMember" id="trgp_VersadoSystemMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="InitialOfferingMember" id="trgp_InitialOfferingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="VeniceEnergyServicesCompanyLlcMember" id="trgp_VeniceEnergyServicesCompanyLlcMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PermianAndStraddleSystemsMember" id="trgp_PermianAndStraddleSystemsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PartialPaymentReceiptMember" id="trgp_PartialPaymentReceiptMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ReceivablesFromContributionToMaintain2GeneralPartnerInterest" id="trgp_ReceivablesFromContributionToMaintain2GeneralPartnerInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ReceivablesFromIssuanceOfCommonUnits" id="trgp_ReceivablesFromIssuanceOfCommonUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="DerivativeExpirationYearAxis" id="trgp_DerivativeExpirationYearAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TypeOfProductHedgedAxis" id="trgp_TypeOfProductHedgedAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TypeOfProductHedgedDomain" id="trgp_TypeOfProductHedgedDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="CondensateMember" id="trgp_CondensateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="NotionalVolumesOfCommodityHedgesAxis" id="trgp_NotionalVolumesOfCommodityHedgesAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TypesAndDatesOfHedgesDomain" id="trgp_TypesAndDatesOfHedgesDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="InstrumentsPutsMemberMember" id="trgp_InstrumentsPutsMemberMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DerivativeExpirationYearDomain" id="trgp_DerivativeExpirationYearDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="Year2014Member" id="trgp_Year2014Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="Year2015Member" id="trgp_Year2015Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="Year2013Member" id="trgp_Year2013Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="Year2016Member" id="trgp_Year2016Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="NumberOfDivisions" id="trgp_NumberOfDivisions" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="SegmentReportingInformationCapitalExpenditures" id="trgp_SegmentReportingInformationCapitalExpenditures" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="OperatingMargin" id="trgp_OperatingMargin" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="TypeOfRevenueAxis" id="trgp_TypeOfRevenueAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TypeOfRevenueDomain" id="trgp_TypeOfRevenueDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TotalOutsideRevenuesMember" id="trgp_TotalOutsideRevenuesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TotalIntersegmentRevenuesMember" id="trgp_TotalIntersegmentRevenuesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="GatheringAndProcessingFeesMember" id="trgp_GatheringAndProcessingFeesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="NglSalesMember" id="trgp_NglSalesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="CoastalMember" id="trgp_CoastalMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TrcNonPartnershipMember" id="trgp_TrcNonPartnershipMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="StorageAndTerminalingFeesMember" id="trgp_StorageAndTerminalingFeesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TotalOtherRevenuesMember" id="trgp_TotalOtherRevenuesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="NaturalGasSalesMember" id="trgp_NaturalGasSalesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="LogisticsMember" id="trgp_LogisticsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="MarketingMember" id="trgp_MarketingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PetroleumProductsMember" id="trgp_PetroleumProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="CondensateSalesMember" id="trgp_CondensateSalesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DerivativeActivitiesMember" id="trgp_DerivativeActivitiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="FractionatingAndTreatingFeesMember" id="trgp_FractionatingAndTreatingFeesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OtherSegmentMember" id="trgp_OtherSegmentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="GasProcessingFeesMember" id="trgp_GasProcessingFeesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="FieldGatheringAndProcessingMember" id="trgp_FieldGatheringAndProcessingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="SeniorUnsecuredNotesDue2017Member" id="trgp_SeniorUnsecuredNotesDue2017Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="SeniorNotesDue2018Member" id="trgp_SeniorNotesDue2018Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PartnershipSSeniorSecuredCreditFacilityMember" id="trgp_PartnershipSSeniorSecuredCreditFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TrcSeniorSecuredRevolvingCreditFacilityDue2017Member" id="trgp_TrcSeniorSecuredRevolvingCreditFacilityDue2017Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="SeniorNotesDue2022Member" id="trgp_SeniorNotesDue2022Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="SeniorUnsecuredNotesDueMay2023Member" id="trgp_SeniorUnsecuredNotesDueMay2023Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="SeniorUnsecuredNotesDue2023Member" id="trgp_SeniorUnsecuredNotesDue2023Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="SeniorNotesDue2021Member" id="trgp_SeniorNotesDue2021Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ParentCompanyExcludingPartnershipMember" id="trgp_ParentCompanyExcludingPartnershipMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TargaResourcesPartnersLpMember" id="trgp_TargaResourcesPartnersLpMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PartnershipSAccountsReceivableSecuritizationFacilityMember" id="trgp_PartnershipSAccountsReceivableSecuritizationFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AccountsReceivableSecuritizationFacilityMember" id="trgp_AccountsReceivableSecuritizationFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AccruedDividends" id="trgp_AccruedDividends" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="DividendDeclaredQ12014Member" id="trgp_DividendDeclaredQ12014Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DividendDeclaredQ42013Member" id="trgp_DividendDeclaredQ42013Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TargaResourcesCorpStockholdersEquityAbstract" id="trgp_TargaResourcesCorpStockholdersEquityAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PropertyPlantAndEquipmentAndIntangibleAssetsAbstract" id="trgp_PropertyPlantAndEquipmentAndIntangibleAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="IntangibleAssetsCustomerContractsAndCustomerRelationshipsMember" id="trgp_IntangibleAssetsCustomerContractsAndCustomerRelationshipsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AccrualOfDistributionEquivalentRights" id="trgp_AccrualOfDistributionEquivalentRights" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="LoanFacilitiesOfNonPartnershipAbstract" id="trgp_LoanFacilitiesOfNonPartnershipAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="RepaymentsOfLoanFacilitiesForNonPartnership" id="trgp_RepaymentsOfLoanFacilitiesForNonPartnership" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="LoanFacilitiesOfPartnershipAbstract" id="trgp_LoanFacilitiesOfPartnershipAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ProceedsFromBorrowingsOfLoanFacilitiesForNonPartnership" id="trgp_ProceedsFromBorrowingsOfLoanFacilitiesForNonPartnership" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="PaymentsToAcquireMaterialAndSupplies" id="trgp_PaymentsToAcquireMaterialAndSupplies" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="DerivativeFairValueCommodityPriceDecreases10PercentNetAsset" id="trgp_DerivativeFairValueCommodityPriceDecreases10PercentNetAsset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="BadlandsContingentConsiderationLiabilitySeeNote4" id="trgp_BadlandsContingentConsiderationLiabilitySeeNote4" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="AccountsReceivableSecuritizationFacilityFairValueDisclosure" id="trgp_AccountsReceivableSecuritizationFacilityFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="TrcSeniorSecuredRevolvingCreditFacility" id="trgp_TrcSeniorSecuredRevolvingCreditFacility" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="DerivativeFairValueCommodityPriceIncreases10PercentNetLiability" id="trgp_DerivativeFairValueCommodityPriceIncreases10PercentNetLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="LinesOfCreditFairValueDisclosureHoldcoLoanFacility" id="trgp_LinesOfCreditFairValueDisclosureHoldcoLoanFacility" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="NumberOfNaturalGasBasisSwapsCategorizedAsLevel3" id="trgp_NumberOfNaturalGasBasisSwapsCategorizedAsLevel3" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="AccountingPolicyUpdatesRevisionsTextBlockPolicyTextBlock" id="trgp_AccountingPolicyUpdatesRevisionsTextBlockPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociToInterestExpenseOnDerivativesNetOfTax" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociToInterestExpenseOnDerivativesNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="InterestRateSwapsAttributableToParentAbstract" id="trgp_InterestRateSwapsAttributableToParentAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociToRevenuesOnDerivativesNetOfTax" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociToRevenuesOnDerivativesNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeAttributableToNoncontrollingInterest" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeAttributableToNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociToRevenuesOnDerivativesTax" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociToRevenuesOnDerivativesTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociOnDerivativesToRevenuesBeforeTax" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociOnDerivativesToRevenuesBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetInterestAttributableToNoncontrollingInterest" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetInterestAttributableToNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="CommodityHedgingContractsAttributableToParentAbstract" id="trgp_CommodityHedgingContractsAttributableToParentAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociToInterestExpenseOnDerivativesTax" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociToInterestExpenseOnDerivativesTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociOnDerivativesToInterestExpenseBeforeTax" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociOnDerivativesToInterestExpenseBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTaxAttributableToNoncontrollingInterest" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTaxAttributableToNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTaxPortionAttributableToNoncontrollingInterest" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTaxPortionAttributableToNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetInterestNetOfTaxPortionAttributableToNoncontrollingInterest" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetInterestNetOfTaxPortionAttributableToNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetInterestTaxPortionAttributableToNoncontrollingInterest" id="trgp_OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetInterestTaxPortionAttributableToNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="CommodityHedgingContractsAttributableToNoncontrollingInterestsAbstract" id="trgp_CommodityHedgingContractsAttributableToNoncontrollingInterestsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="InterestRateSwapsAttributableToNoncontrollingInterestsAbstract" id="trgp_InterestRateSwapsAttributableToNoncontrollingInterestsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ProFormaImpactOfDerivativesNetInConsolidatedBalanceSheetTableTextBlock" id="trgp_ProFormaImpactOfDerivativesNetInConsolidatedBalanceSheetTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="OrganizationAbstract" id="trgp_OrganizationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="CashAbstract" id="trgp_CashAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AccruedDistributionEquivalentRights" id="trgp_AccruedDistributionEquivalentRights" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="ReceivablesFromUnitOfferings" id="trgp_ReceivablesFromUnitOfferings" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="NoncashAbstract" id="trgp_NoncashAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DeadstockInventoryTransferredToPropertyPlantAndEquipment" id="trgp_DeadstockInventoryTransferredToPropertyPlantAndEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="ChangeInCapitalAccruals" id="trgp_ChangeInCapitalAccruals" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="TransfersFromMaterialsAndSuppliesToPropertyPlantAndEquipment" id="trgp_TransfersFromMaterialsAndSuppliesToPropertyPlantAndEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="DocumentAndEntityInformationAbstract" id="trgp_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DerivativeByPositionAxis" id="trgp_DerivativeByPositionAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DerivativeByPositionDomain" id="trgp_DerivativeByPositionDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="LongTermPositionMember" id="trgp_LongTermPositionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DerivativesByPresentationAxis" id="trgp_DerivativesByPresentationAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DerivativesByPresentationDomain" id="trgp_DerivativesByPresentationDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="GrossPresentationMember" id="trgp_GrossPresentationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ProFormaNetPresentationMember" id="trgp_ProFormaNetPresentationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AssetPositionMember" id="trgp_AssetPositionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ProFormaImpactOfReportingDerivativesInConsolidatedBalanceSheetsAbstract" id="trgp_ProFormaImpactOfReportingDerivativesInConsolidatedBalanceSheetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="LiabilityPositionMember" id="trgp_LiabilityPositionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="CurrentPositionMember" id="trgp_CurrentPositionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DeferredGainsLossesInAccumulatedOciAfterTax" id="trgp_DeferredGainsLossesInAccumulatedOciAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="DeferredGainsLossesInAccumulatedOciBeforeTax" id="trgp_DeferredGainsLossesInAccumulatedOciBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="OtherIncomeExpenseMember" id="trgp_OtherIncomeExpenseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ReclassificationsTableTextBlock" id="trgp_ReclassificationsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PartnershipOwnershipDisclosureAbstract" id="trgp_PartnershipOwnershipDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="GeneralPartnerSInterestInPartnership" id="trgp_GeneralPartnerSInterestInPartnership" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="NumberOfPartnershipCommonUnitsOwned" id="trgp_NumberOfPartnershipCommonUnitsOwned" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="ReclassificationTable" id="trgp_ReclassificationTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ReclassificationLineItems" id="trgp_ReclassificationLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="RevisedLineItemsConsolidatedStatementOfCashFlowsAbstract" id="trgp_RevisedLineItemsConsolidatedStatementOfCashFlowsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="RevisedAdjustmentMember" id="trgp_RevisedAdjustmentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
</xs:schema>
