<?xml version="1.0" encoding="UTF-8" ?>
<!-- Generated by DataTracks version 1.1.9 on 09-Mar-2017 [03:28:44] {AM} EST - www.datatracks.com -->
<schema targetNamespace="http://www.unitedstates12monthoilfund.com/20161231" elementFormDefault="qualified" xmlns:usl="http://www.unitedstates12monthoilfund.com/20161231" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:us-gaap="http://fasb.org/us-gaap/2016-01-31" xmlns:country="http://xbrl.sec.gov/country/2016-01-31" xmlns:currency="http://xbrl.sec.gov/currency/2016-01-31" xmlns:dei="http://xbrl.sec.gov/dei/2014-01-31" xmlns:exch="http://xbrl.sec.gov/exch/2016-01-31" xmlns:invest="http://xbrl.sec.gov/invest/2013-01-31" xmlns:naics="http://xbrl.sec.gov/naics/2011-01-31" xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31" xmlns:us-types="http://fasb.org/us-types/2016-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2011-01-31" xmlns:deprecated="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric">
  <annotation>
    <appinfo>
      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/DocumentAndEntityInformation" id="DocumentAndEntityInformation">
        <link:definition>101 - Document - Document And Entity Information</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/StatementsOfFinancialCondition" id="StatementsOfFinancialCondition">
        <link:definition>102 - Statement - Statements of Financial Condition</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/ScheduleOfInvestments" id="ScheduleOfInvestments">
        <link:definition>103 - Statement - Schedule of Investments</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/ScheduleOfInvestmentsParenthetical" id="ScheduleOfInvestmentsParenthetical">
        <link:definition>104 - Statement - Schedule of Investments (Parenthetical)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/StatementsOfOperations" id="StatementsOfOperations">
        <link:definition>105 - Statement - Statements of Operations</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/StatementsOfChangesInPartnersCapital" id="StatementsOfChangesInPartnersCapital">
        <link:definition>106 - Statement - Statements of Changes in Partners&#39; Capital</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/StatementsOfChangesInPartnersCapitalParenthetical" id="StatementsOfChangesInPartnersCapitalParenthetical">
        <link:definition>107 - Statement - Statements of Changes in Partners&#39; Capital (Parenthetical)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/StatementsOfCashFlows" id="StatementsOfCashFlows">
        <link:definition>108 - Statement - Statements of Cash Flows</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/OrganizationAndBusiness" id="OrganizationAndBusiness">
        <link:definition>109 - Disclosure - ORGANIZATION AND BUSINESS</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/SummaryOfSignificantAccountingPolicies" id="SummaryOfSignificantAccountingPolicies">
        <link:definition>110 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FeesPaidByFundAndRelatedPartyTransactions" id="FeesPaidByFundAndRelatedPartyTransactions">
        <link:definition>111 - Disclosure - FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/ContractsAndAgreements" id="ContractsAndAgreements">
        <link:definition>112 - Disclosure - CONTRACTS AND AGREEMENTS</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FinancialInstrumentsOffbalanceSheetRisksAndContingencies" id="FinancialInstrumentsOffbalanceSheetRisksAndContingencies">
        <link:definition>113 - Disclosure - FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FinancialHighlights" id="FinancialHighlights">
        <link:definition>114 - Disclosure - FINANCIAL HIGHLIGHTS</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/QuarterlyFinancialDataUnaudited" id="QuarterlyFinancialDataUnaudited">
        <link:definition>115 - Disclosure - QUARTERLY FINANCIAL DATA (Unaudited)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FairValueOfFinancialInstruments" id="FairValueOfFinancialInstruments">
        <link:definition>116 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/RecentAccountingPronouncements" id="RecentAccountingPronouncements">
        <link:definition>117 - Disclosure - RECENT ACCOUNTING PRONOUNCEMENTS</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/SubsequentEvents" id="SubsequentEvents">
        <link:definition>118 - Disclosure - SUBSEQUENT EVENTS</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/SummaryOfSignificantAccountingPoliciesPolicies" id="SummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>119 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/ContractsAndAgreementsTables" id="ContractsAndAgreementsTables">
        <link:definition>120 - Disclosure - CONTRACTS AND AGREEMENTS (Tables)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FinancialHighlightsTables" id="FinancialHighlightsTables">
        <link:definition>121 - Disclosure - FINANCIAL HIGHLIGHTS (Tables)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/QuarterlyFinancialDataUnauditedTables" id="QuarterlyFinancialDataUnauditedTables">
        <link:definition>122 - Disclosure - QUARTERLY FINANCIAL DATA (Unaudited) (Tables)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FairValueOfFinancialInstrumentsTables" id="FairValueOfFinancialInstrumentsTables">
        <link:definition>123 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/OrganizationAndBusinessAdditionalInformationDetails" id="OrganizationAndBusinessAdditionalInformationDetails">
        <link:definition>124 - Disclosure - ORGANIZATION AND BUSINESS (Additional Information) (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" id="SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails">
        <link:definition>125 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Additional Information) (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FeesPaidByFundAndRelatedPartyTransactionsAdditionalInformationDetails" id="FeesPaidByFundAndRelatedPartyTransactionsAdditionalInformationDetails">
        <link:definition>126 - Disclosure - FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Additional Information) (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/ContractsAndAgreementsBrokerageCommissionsDetails" id="ContractsAndAgreementsBrokerageCommissionsDetails">
        <link:definition>127 - Disclosure - CONTRACTS AND AGREEMENTS (Brokerage Commissions) (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/ContractsAndAgreementsAdditionalInformationDetails" id="ContractsAndAgreementsAdditionalInformationDetails">
        <link:definition>128 - Disclosure - CONTRACTS AND AGREEMENTS (Additional Information) (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FinancialInstrumentsOffbalanceSheetRisksAndContingenciesAdditionalInformationDetails" id="FinancialInstrumentsOffbalanceSheetRisksAndContingenciesAdditionalInformationDetails">
        <link:definition>129 - Disclosure - FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES (Additional Information) (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FinancialHighlightsPerUnitPerformanceDataAndOtherSupplementalFinancialDataDetails" id="FinancialHighlightsPerUnitPerformanceDataAndOtherSupplementalFinancialDataDetails">
        <link:definition>130 - Disclosure - FINANCIAL HIGHLIGHTS (Per Unit Performance Data and Other Supplemental Financial Data) (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/QuarterlyFinancialDataUnauditedSummarizedQuarterlyFinancialInformationDetails" id="QuarterlyFinancialDataUnauditedSummarizedQuarterlyFinancialInformationDetails">
        <link:definition>131 - Disclosure - QUARTERLY FINANCIAL DATA (Unaudited) (Summarized Quarterly Financial Information (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FairValueOfFinancialInstrumentsValuationOfSecuritiesUsingFairValueHierarchyDetails" id="FairValueOfFinancialInstrumentsValuationOfSecuritiesUsingFairValueHierarchyDetails">
        <link:definition>132 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS (Valuation of Securities Using Fair Value Hierarchy) (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FairValueOfFinancialInstrumentsFairValueOfDerivativeInstrumentsDetails" id="FairValueOfFinancialInstrumentsFairValueOfDerivativeInstrumentsDetails">
        <link:definition>133 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS (Fair Value of Derivative Instruments) (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:roleType roleURI="http://www.unitedstates12monthoilfund.com/role/FairValueOfFinancialInstrumentsEffectOfDerivativeInstrumentsOnCondensedStatementsOfOperationsDetails" id="FairValueOfFinancialInstrumentsEffectOfDerivativeInstrumentsOnCondensedStatementsOfOperationsDetails">
        <link:definition>134 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS (Effect of Derivative Instruments on Condensed Statements of Operations) (Details)</link:definition>

        <link:usedOn>link:presentationLink</link:usedOn>

        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>

      <link:linkbaseRef xlink:type="simple" xlink:href="usl-20161231_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="usl-20161231_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="usl-20161231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />

      <link:linkbaseRef xlink:type="simple" xlink:href="usl-20161231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
    </appinfo>
  </annotation>

  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />

  <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />

  <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />

  <import namespace="http://fasb.org/us-gaap/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd" />

  <import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />

  <import namespace="http://xbrl.sec.gov/country/2016-01-31" schemaLocation="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd" />

  <import namespace="http://xbrl.sec.gov/currency/2016-01-31" schemaLocation="http://xbrl.sec.gov/currency/2016/currency-2016-01-31.xsd" />

  <import namespace="http://xbrl.sec.gov/exch/2016-01-31" schemaLocation="http://xbrl.sec.gov/exch/2016/exch-2016-01-31.xsd" />

  <import namespace="http://xbrl.sec.gov/naics/2011-01-31" schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd" />

  <import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />

  <import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" />

  <import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />

  <import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />

  <import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />

  <import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd" />

  <import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />

  <import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />

  <import namespace="http://fasb.org/us-types/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-types-2016-01-31.xsd" />

  <element name="DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_DocumentAndEntityInformationAbstract" />

  <element name="FeesPaidAndRelatedPartyTransactionsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_FeesPaidAndRelatedPartyTransactionsAbstract" />

  <element name="FeesPaidAndRelatedPartyTransactionsDisclosureTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_FeesPaidAndRelatedPartyTransactionsDisclosureTextBlock" />

  <element name="FinancialInstrumentsOffBalanceSheetRisksAndContingenciesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_FinancialInstrumentsOffBalanceSheetRisksAndContingenciesAbstract" />

  <element name="FinancialHighlightsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_FinancialHighlightsAbstract" />

  <element name="NetAssetValuePolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NetAssetValuePolicyTextBlock" />

  <element name="BrokerageCommissionsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_BrokerageCommissionsTableTextBlock" />

  <element name="PerUnitPerformanceDataAndOtherSupplementalFinancialDataTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_PerUnitPerformanceDataAndOtherSupplementalFinancialDataTableTextBlock" />

  <element name="UnrealizedGainLossOnOpenCommodityFuturesContracts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="usl_UnrealizedGainLossOnOpenCommodityFuturesContracts" />

  <element name="NetAssetValuePerUnit" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="usl_NetAssetValuePerUnit" />

  <element name="LicenseFeesPayableCurrentAndNoncurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="usl_LicenseFeesPayableCurrentAndNoncurrent" />

  <element name="MarketValuePerUnit" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="usl_MarketValuePerUnit" />

  <element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="usl_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" />

  <element name="PeriodAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem" id="usl_PeriodAxis" />

  <element name="PeriodDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_PeriodDomain" />

  <element name="OpenFuturesContractsLongMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_OpenFuturesContractsLongMember" />

  <element name="CreationBasketsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_CreationBasketsMember" />

  <element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" />

  <element name="NumberOfUnitsPerBasket" type="us-types:perUnitItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="usl_NumberOfUnitsPerBasket" />

  <element name="FeePaidPerOrder" type="us-types:perUnitItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="usl_FeePaidPerOrder" />

  <element name="UnitsIssuedDuringPeriodUnitsNewIssues" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UnitsIssuedDuringPeriodUnitsNewIssues" />

  <element name="UnitsIssuedDuringPeriodValueNewIssues" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="usl_UnitsIssuedDuringPeriodValueNewIssues" />

  <element name="NumberOfRegisteredUnits" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="usl_NumberOfRegisteredUnits" />

  <element name="SignificantAccountingPoliciesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="usl_SignificantAccountingPoliciesTable" />

  <element name="SignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_SignificantAccountingPoliciesLineItems" />

  <element name="NumberOfSharesPerBasket" type="us-types:perUnitItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="usl_NumberOfSharesPerBasket" />

  <element name="FundTrustsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_FundTrustsMember" />

  <element name="GroupThreeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_GroupThreeMember" />

  <element name="FeesPaidAndRelatedPartyTransactionsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_FeesPaidAndRelatedPartyTransactionsLineItems" />

  <element name="RegistrationFeesAndOtherOfferingExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="usl_RegistrationFeesAndOtherOfferingExpenses" />

  <element name="BaseFeePercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_BaseFeePercentage" />

  <element name="RebalancingInvestmentsTransactionMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_RebalancingInvestmentsTransactionMember" />

  <element name="TradesNecessitatedByCreationAndRedemptionActivityMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_TradesNecessitatedByCreationAndRedemptionActivityMember" />

  <element name="PercentageOfAverageDailyNetAssets" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="usl_PercentageOfAverageDailyNetAssets" />

  <element name="MarketingAgreementMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_MarketingAgreementMember" />

  <element name="GroupFourMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_GroupFourMember" />

  <element name="GroupFiveMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_GroupFiveMember" />

  <element name="GroupSixMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_GroupSixMember" />

  <element name="GroupSevenMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_GroupSevenMember" />

  <element name="GroupEightMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_GroupEightMember" />

  <element name="BasisAmountForFeePercentage" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="usl_BasisAmountForFeePercentage" />

  <element name="TransactionFeesPaidPerTransaction" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="usl_TransactionFeesPaidPerTransaction" />

  <element name="CommissionsPaid" type="us-types:perUnitItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_CommissionsPaid" />

  <element name="CarryingAmountsAndFairValuesOfFinancialInstrumentsOrLiabilitiesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="usl_CarryingAmountsAndFairValuesOfFinancialInstrumentsOrLiabilitiesTable" />

  <element name="CarryingAmountsAndFairValuesOfFinancialInstrumentsOrLiabilitiesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_CarryingAmountsAndFairValuesOfFinancialInstrumentsOrLiabilitiesLineItems" />

  <element name="TotalIncomeLossPerUnit" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_TotalIncomeLossPerUnit" />

  <element name="TotalExpensesPerUnit" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_TotalExpensesPerUnit" />

  <element name="IncreaseDecreaseInNetAssetValuePerUnit" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_IncreaseDecreaseInNetAssetValuePerUnit" />

  <element name="RateOfReturnOnAverageAsset" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="usl_RateOfReturnOnAverageAsset" />

  <element name="AverageNetAssetsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_AverageNetAssetsAbstract" />

  <element name="PercentageOfTotalRevenue" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_PercentageOfTotalRevenue" />

  <element name="ManagementIncentiveFeePercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_ManagementIncentiveFeePercentage" />

  <element name="ExpensesExcludingManagementFeePercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_ExpensesExcludingManagementFeePercentage" />

  <element name="PercentageOfConsolidatedNetIncomeLoss" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_PercentageOfConsolidatedNetIncomeLoss" />

  <element name="StatementScheduleOfInvestmentsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_StatementScheduleOfInvestmentsAbstract" />

  <element name="PercentageOfPartnersCapital" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="usl_PercentageOfPartnersCapital" />

  <element name="ClosedPositionsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_ClosedPositionsMember" />

  <element name="OpenPositionMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_OpenPositionMember" />

  <element name="CollateralAmountOnOpenFuturesContracts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="usl_CollateralAmountOnOpenFuturesContracts" />

  <element name="GainLossOnCommodityFuturesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_GainLossOnCommodityFuturesAbstract" />

  <element name="PaymentsToPartnershipRedemption" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="usl_PaymentsToPartnershipRedemption" />

  <element name="DescriptionOfNewAccountingPronouncementsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_DescriptionOfNewAccountingPronouncementsAbstract" />

  <element name="DescriptionofnewaccountingpronouncementsTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_DescriptionofnewaccountingpronouncementsTextBlock" />

  <element name="QuarterlyFinancialInformationLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_QuarterlyFinancialInformationLineItems" />

  <element name="IncreaseDecreaseManagementFeesPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="usl_IncreaseDecreaseManagementFeesPayable" />

  <element name="IncreaseDecreaseInProfessionalFeesPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="usl_IncreaseDecreaseInProfessionalFeesPayable" />

  <element name="IncreaseDecreaseInBrokerageCommissionsPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="usl_IncreaseDecreaseInBrokerageCommissionsPayable" />

  <element name="NetAssetValuePerUnitAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NetAssetValuePerUnitAbstract" />

  <element name="UsTreasuryBills0341052017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0341052017Member" />

  <element name="UsTreasuryBills0431192017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0431192017Member" />

  <element name="UsTreasuryBills0361262017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0361262017Member" />

  <element name="UsTreasuryBills0402022017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0402022017Member" />

  <element name="UsTreasuryBills0422092017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0422092017Member" />

  <element name="UsTreasuryBills0452162017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0452162017Member" />

  <element name="UsTreasuryBills0452232017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0452232017Member" />

  <element name="UsTreasuryBills0453022017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0453022017Member" />

  <element name="UsTreasuryBills0473092017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0473092017Member" />

  <element name="UsTreasuryBills0503162017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0503162017Member" />

  <element name="OtherOperatingIncomeExpensePolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_OtherOperatingIncomeExpensePolicyTextBlock" />

  <element name="UsTreasuryBills0453232017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0453232017Member" />

  <element name="UsTreasuryBills0433302017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0433302017Member" />

  <element name="UsTreasuryBills0464062017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0464062017Member" />

  <element name="UsTreasuryBills0474132017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0474132017Member" />

  <element name="UsTreasuryBills0464202017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0464202017Member" />

  <element name="UsTreasuryBills0474272017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0474272017Member" />

  <element name="UsTreasuryBills0495042017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0495042017Member" />

  <element name="UsTreasuryBills0555112017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0555112017Member" />

  <element name="UsTreasuryBills0605182017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0605182017Member" />

  <element name="UsTreasuryBills0615252017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0615252017Member" />

  <element name="UsTreasuryBills0606012017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0606012017Member" />

  <element name="UsTreasuryBills0626082017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0626082017Member" />

  <element name="UsTreasuryBills0656152017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0656152017Member" />

  <element name="UsTreasuryBills0646222017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0646222017Member" />

  <element name="UsTreasuryBills0606292017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0606292017Member" />

  <element name="UsTreasuryBills0131212016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0131212016Member" />

  <element name="UsTreasuryBills0151282016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0151282016Member" />

  <element name="UsTreasuryBills0192042016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0192042016Member" />

  <element name="UsTreasuryBills0222112016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0222112016Member" />

  <element name="UsTreasuryBills0202182016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0202182016Member" />

  <element name="UsTreasuryBills0202252016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0202252016Member" />

  <element name="UsTreasuryBills0233032016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0233032016Member" />

  <element name="UsTreasuryBills0263102016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0263102016Member" />

  <element name="NymexWtiCrudeOilFuturesClFebruary2017ContractsExpiringJanuary2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClFebruary2017ContractsExpiringJanuary2017Member" />

  <element name="NymexWtiCrudeOilFuturesClMarch2017ContractsExpiringFebruary2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClMarch2017ContractsExpiringFebruary2017Member" />

  <element name="NymexWtiCrudeOilFuturesClApril2017ContractsExpiringMarch2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClApril2017ContractsExpiringMarch2017Member" />

  <element name="NymexWtiCrudeOilFuturesClMay2017ContractsExpiringApril2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClMay2017ContractsExpiringApril2017Member" />

  <element name="NymexWtiCrudeOilFuturesClJune2017ContractsExpiringMay2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClJune2017ContractsExpiringMay2017Member" />

  <element name="NymexWtiCrudeOilFuturesClJuly2017ContractsExpiringJune2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClJuly2017ContractsExpiringJune2017Member" />

  <element name="UsTreasuryBills0243172016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0243172016Member" />

  <element name="UsTreasuryBills0093242016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0093242016Member" />

  <element name="UsTreasuryBills0073312016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0073312016Member" />

  <element name="UsTreasuryBills0074072016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0074072016Member" />

  <element name="IncreaseDecreaseInLicenseFeesPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="usl_IncreaseDecreaseInLicenseFeesPayable" />

  <element name="Ustreasurybillssecurities37memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities37memberMember" />

  <element name="Ustreasurybillssecurities38membermemberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities38membermemberMember" />

  <element name="Ustreasurybillssecurities39membermemberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities39membermemberMember" />

  <element name="UsTreasuryBills0335122016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0335122016Member" />

  <element name="Ustreasurybillssecurities42memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities42memberMember" />

  <element name="Ustreasurybillssecurities43memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities43memberMember" />

  <element name="Ustreasurybillssecurities44memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities44memberMember" />

  <element name="Ustreasurybillssecurities45memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities45memberMember" />

  <element name="Ustreasurybillssecurities46memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities46memberMember" />

  <element name="Ustreasurybillssecurities47memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities47memberMember" />

  <element name="Ustreasurybillssecurities48memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities48memberMember" />

  <element name="Ustreasurybillssecurities49memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities49memberMember" />

  <element name="UsTreasuryBills0074142016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0074142016Member" />

  <element name="UsTreasuryBills0114212016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0114212016Member" />

  <element name="UsTreasuryBills0214282016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0214282016Member" />

  <element name="UsTreasuryBills0265052016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0265052016Member" />

  <element name="UsTreasuryBills0315192016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0315192016Member" />

  <element name="UsTreasuryBills0355262016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0355262016Member" />

  <element name="UsTreasuryBills0436022016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0436022016Member" />

  <element name="UsTreasuryBills0526092016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0526092016Member" />

  <element name="UsTreasuryBills0486162016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0486162016Member" />

  <element name="UsTreasuryBills0466232016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0466232016Member" />

  <element name="Ustreasurybillssecurities50memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities50memberMember" />

  <element name="Ustreasurybillssecurities51memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities51memberMember" />

  <element name="Ustreasurybillssecurities52memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities52memberMember" />

  <element name="Ustreasurybillssecurities53memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities53memberMember" />

  <element name="Ustreasurybillssecurities54memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities54memberMember" />

  <element name="Ustreasurybillssecurities55memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities55memberMember" />

  <element name="Ustreasurybillssecurities56memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities56memberMember" />

  <element name="Ustreasurybillssecurities57memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities57memberMember" />

  <element name="Ustreasurybillssecurities58memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities58memberMember" />

  <element name="Ustreasurybillssecurities59memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities59memberMember" />

  <element name="Ustreasurybillssecurities60memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities60memberMember" />

  <element name="Ustreasurybillssecurities61memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities61memberMember" />

  <element name="Ustreasurybillssecurities62memberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_Ustreasurybillssecurities62memberMember" />

  <element name="NymexWtiCrudeOilFuturesClAugust2016ContractsExpiringJuly2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClAugust2016ContractsExpiringJuly2016Member" />

  <element name="NymexWtiCrudeOilFuturesClSeptember2016ContractsExpiringAugust2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClSeptember2016ContractsExpiringAugust2016Member" />

  <element name="NymexWtiCrudeOilFuturesClOctober2016ContractsExpiringSeptember2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClOctober2016ContractsExpiringSeptember2016Member" />

  <element name="NymexWtiCrudeOilFuturesClNovember2016ContractsExpiringOctober2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClNovember2016ContractsExpiringOctober2016Member" />

  <element name="NymexWtiCrudeOilFuturesClDecember2016ContractsExpiringNovember2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClDecember2016ContractsExpiringNovember2016Member" />

  <element name="NymexWtiCrudeOilFuturesClJanuary2017ContractsExpiringDecember2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClJanuary2017ContractsExpiringDecember2016Member" />

  <element name="NymexWtiCrudeOilFuturesClFebruary2016ContractsExpiringJanuary2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClFebruary2016ContractsExpiringJanuary2016Member" />

  <element name="NymexWtiCrudeOilFuturesClMarch2016ContractsExpiringFebruary2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClMarch2016ContractsExpiringFebruary2016Member" />

  <element name="NymexWtiCrudeOilFuturesClApril2016ContractsExpiringMarch2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClApril2016ContractsExpiringMarch2016Member" />

  <element name="NymexWtiCrudeOilFuturesClMay2016ContractsExpiringApril2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClMay2016ContractsExpiringApril2016Member" />

  <element name="NymexWtiCrudeOilFuturesClJune2016ContractsExpiringMay2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClJune2016ContractsExpiringMay2016Member" />

  <element name="NymexWtiCrudeOilFuturesClJuly2016ContractsExpiringJune2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClJuly2016ContractsExpiringJune2016Member" />

  <element name="UsTreasuryBills0476302016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_UsTreasuryBills0476302016Member" />

  <element name="FidelityInvestmentsMoneyMarketFundsGovernmentPortfolioMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_FidelityInvestmentsMoneyMarketFundsGovernmentPortfolioMember" />

  <element name="GoldmanSachsFinancialSquareFundsGovernmentFundClassFsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_GoldmanSachsFinancialSquareFundsGovernmentFundClassFsMember" />

  <element name="MorganStanleyInstitutionalLiquidityFundsGovernmentPortfolioMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_MorganStanleyInstitutionalLiquidityFundsGovernmentPortfolioMember" />

  <element name="NymexWtiCrudeOilFuturesClAugust2017ContractsExpiringJuly2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClAugust2017ContractsExpiringJuly2017Member" />

  <element name="NymexWtiCrudeOilFuturesClSeptember2017ContractsExpiringAugust2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClSeptember2017ContractsExpiringAugust2017Member" />

  <element name="NymexWtiCrudeOilFuturesClOctober2017ContractsExpiringSeptember2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClOctober2017ContractsExpiringSeptember2017Member" />

  <element name="NymexWtiCrudeOilFuturesClNovember2017ContractsExpiringOctober2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClNovember2017ContractsExpiringOctober2017Member" />

  <element name="NymexWtiCrudeOilFuturesClDecember2017ContractsExpiringNovember2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClDecember2017ContractsExpiringNovember2017Member" />

  <element name="NymexWtiCrudeOilFuturesClJanuary2018ContractsExpiringDecember2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_NymexWtiCrudeOilFuturesClJanuary2018ContractsExpiringDecember2017Member" />

  <element name="WellsFargoAdvantageGovernmentMoneyMarketFundClassIMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="usl_WellsFargoAdvantageGovernmentMoneyMarketFundClassIMember" />
</schema>

