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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DividendsReceivable" xlink:to="us-gaap_DividendsReceivable_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DividendsReceivable_lbl" xml:lang="en-US">Dividends receivable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestReceivable" xlink:label="us-gaap_InterestReceivable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestReceivable" xlink:to="us-gaap_InterestReceivable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestReceivable_lbl" xml:lang="en-US">Interest Receivable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestReceivable_lbl" xml:lang="en-US">Interest receivable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedFeesAndOtherRevenueReceivable" xlink:label="us-gaap_AccruedFeesAndOtherRevenueReceivable" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccruedFeesAndOtherRevenueReceivable_lbl" xml:lang="en-US">Prepaid insurance</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseCurrentAndNoncurrent" xlink:label="us-gaap_PrepaidExpenseCurrentAndNoncurrent" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrepaidExpenseCurrentAndNoncurrent_lbl" xml:lang="en-US">Prepaid Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_PrepaidExpenseCurrentAndNoncurrent_lbl" xml:lang="en-US">Prepaid registration fees</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherReceivables" xlink:label="us-gaap_OtherReceivables" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherReceivables_lbl" xml:lang="en-US">ETF transaction fees receivable</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US">Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US">Total Assets</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_LiabilitiesAndPartnersCapitalAbstract" xlink:to="uso_LiabilitiesAndPartnersCapitalAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_LiabilitiesAndPartnersCapitalAbstract_lbl" xml:lang="en-US">Liabilities And Partners Capital [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_LiabilitiesAndPartnersCapitalAbstract_lbl" xml:lang="en-US">Liabilities And Partners Capital [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_LiabilitiesAndPartnersCapitalAbstract_lbl" xml:lang="en-US">Liabilities and Partners' Capital</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DueToCorrespondentBrokers_lbl" xml:lang="en-US">Due to Correspondent Brokers</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DueToCorrespondentBrokers_lbl" xml:lang="en-US">Payable due to Broker</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_PayableForSharesRedeemed" xlink:label="uso_PayableForSharesRedeemed" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_PayableForSharesRedeemed" xlink:to="uso_PayableForSharesRedeemed_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_PayableForSharesRedeemed_lbl" xml:lang="en-US">The payment made for shares redeemed.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_PayableForSharesRedeemed_lbl" xml:lang="en-US">Payable For Shares Redeemed</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_PayableForSharesRedeemed_lbl" xml:lang="en-US">Payable for shares redeemed</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent" xlink:label="us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent" xlink:to="us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent_lbl" xml:lang="en-US">Due to Officers or Stockholders</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent_lbl" xml:lang="en-US">General Partner management fees payable (Note 3)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedProfessionalFeesCurrentAndNoncurrent" xlink:label="us-gaap_AccruedProfessionalFeesCurrentAndNoncurrent" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedProfessionalFeesCurrentAndNoncurrent_lbl" xml:lang="en-US">Accrued Professional Fees</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccruedProfessionalFeesCurrentAndNoncurrent_lbl" xml:lang="en-US">Professional fees payable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations" xlink:label="us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations_lbl" xml:lang="en-US">Commissions Payable to Broker-Dealers and Clearing Organizations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations_lbl" xml:lang="en-US">Brokerage commissions payable</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ManagementFeePayable_lbl" xml:lang="en-US">Management Fee Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ManagementFeePayable_lbl" xml:lang="en-US">Directors' fees payable</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_LicenseFeesPayableCurrentAndNoncurrent" xlink:label="uso_LicenseFeesPayableCurrentAndNoncurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_LicenseFeesPayableCurrentAndNoncurrent" xlink:to="uso_LicenseFeesPayableCurrentAndNoncurrent_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_LicenseFeesPayableCurrentAndNoncurrent_lbl" xml:lang="en-US">License fees payable Current and Noncurrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_LicenseFeesPayableCurrentAndNoncurrent_lbl" xml:lang="en-US">License Fees Payable Current And Noncurrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_LicenseFeesPayableCurrentAndNoncurrent_lbl" xml:lang="en-US">License fees payable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US">Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US">Total Liabilities</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PartnersCapitalAbstract_lbl" xml:lang="en-US">Partners' Capital</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralPartnersCapitalAccount" xlink:label="us-gaap_GeneralPartnersCapitalAccount" />
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_NetAssetValuePerUnit" xlink:to="uso_NetAssetValuePerUnit_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_NetAssetValuePerUnit_lbl" xml:lang="en-US">Net asset value per unit.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_NetAssetValuePerUnit_lbl" xml:lang="en-US">Net Asset Value Per Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="uso_NetAssetValuePerUnit_lbl" xml:lang="en-US">Net asset value, end of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="uso_NetAssetValuePerUnit_lbl" xml:lang="en-US">Net asset value, beginning of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_NetAssetValuePerUnit_lbl" xml:lang="en-US">Net asset value per unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="uso_NetAssetValuePerUnit_lbl" xml:lang="en-US">Net asset value per share</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_MarketValuePerUnit" xlink:label="uso_MarketValuePerUnit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_MarketValuePerUnit" xlink:to="uso_MarketValuePerUnit_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_MarketValuePerUnit_lbl" xml:lang="en-US">Market value per unit.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_MarketValuePerUnit_lbl" xml:lang="en-US">Market Value Per Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_MarketValuePerUnit_lbl" xml:lang="en-US">Market value per share</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:label="us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:to="us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_lbl" xml:lang="en-US">Stockholders' Equity Note, Stock Split, Conversion Ratio</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_lbl" xml:lang="en-US">Reverse share split</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_StatementScheduleOfInvestmentsAbstract" xlink:label="uso_StatementScheduleOfInvestmentsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_StatementScheduleOfInvestmentsAbstract" xlink:to="uso_StatementScheduleOfInvestmentsAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_StatementScheduleOfInvestmentsAbstract_lbl" xml:lang="en-US">Statement - Schedule of Investments [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_StatementScheduleOfInvestmentsAbstract_lbl" xml:lang="en-US">Condensed Schedule of Investments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="us-gaap_InvestmentTypeAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentTypeAxis" xlink:to="us-gaap_InvestmentTypeAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentTypeAxis_lbl" xml:lang="en-US">Investment Type [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="us-gaap_InvestmentTypeCategorizationMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="us-gaap_InvestmentTypeCategorizationMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xml:lang="en-US">Investment Type Categorization [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xml:lang="en-US">Investment Type Categorization [Domain]</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_OpenFuturesContractsLongMember" xlink:label="uso_OpenFuturesContractsLongMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_OpenFuturesContractsLongMember" xlink:to="uso_OpenFuturesContractsLongMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_OpenFuturesContractsLongMember_lbl" xml:lang="en-US">Open Futures Contracts, Long [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_OpenFuturesContractsLongMember_lbl" xml:lang="en-US">Open Futures Contracts Long [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_OpenFuturesContractsLongMember_lbl" xml:lang="en-US">Open Futures Contracts- Long</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_OpenCommodityFuturesContractsLongMember" xlink:label="uso_OpenCommodityFuturesContractsLongMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_OpenCommodityFuturesContractsLongMember" xlink:to="uso_OpenCommodityFuturesContractsLongMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_OpenCommodityFuturesContractsLongMember_lbl" xml:lang="en-US">This member stands for open commodity futures contracts - long.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_OpenCommodityFuturesContractsLongMember_lbl" xml:lang="en-US">Open Commodity Futures Contracts Long [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_OpenCommodityFuturesContractsLongMember_lbl" xml:lang="en-US">Open Commodity Futures Contracts - Long</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashEquivalentsMember" xlink:to="us-gaap_CashEquivalentsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashEquivalentsMember_lbl" xml:lang="en-US">Cash Equivalents [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashEquivalentsMember_lbl" xml:lang="en-US">Cash Equivalents</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentOwnedAtFairValue" xlink:label="us-gaap_InvestmentOwnedAtFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentOwnedAtFairValue" xlink:to="us-gaap_InvestmentOwnedAtFairValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xml:lang="en-US">Investment Owned, at Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xml:lang="en-US">Notional Amount</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentOwnedBalanceContracts" xlink:label="us-gaap_InvestmentOwnedBalanceContracts" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentOwnedBalanceContracts" xlink:to="us-gaap_InvestmentOwnedBalanceContracts_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentOwnedBalanceContracts_lbl" xml:lang="en-US">Investment Owned Balance Contracts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentOwnedBalanceContracts_lbl" xml:lang="en-US">Number of Contracts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_InvestmentOwnedBalanceContracts_lbl" xml:lang="en-US">Number of Contracts</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:label="us-gaap_InvestmentOwnedBalancePrincipalAmount" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:to="us-gaap_InvestmentOwnedBalancePrincipalAmount_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentOwnedBalancePrincipalAmount_lbl" xml:lang="en-US">Investment Owned Balance Principal Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentOwnedBalancePrincipalAmount_lbl" xml:lang="en-US">Shares/Principal Amount</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" xlink:label="us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" xlink:to="us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue_lbl" xml:lang="en-US">Investment Owned Underlying Face Amount At Market Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue_lbl" xml:lang="en-US">Market Value</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_PercentageOfPartnersCapital" xlink:label="uso_PercentageOfPartnersCapital" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_PercentageOfPartnersCapital" xlink:to="uso_PercentageOfPartnersCapital_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_PercentageOfPartnersCapital_lbl" xml:lang="en-US">Percentage of Partners Capital</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_PercentageOfPartnersCapital_lbl" xml:lang="en-US">Percentage Of Partners Capital</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_PercentageOfPartnersCapital_lbl" xml:lang="en-US">% of Partners' Capital</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xml:lang="en-US">Debt Instrument Interest Rate Stated Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xml:lang="en-US">Interest rate</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentOwnedSubjectToOptionExerciseDates" xlink:label="us-gaap_InvestmentOwnedSubjectToOptionExerciseDates" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentOwnedSubjectToOptionExerciseDates" xlink:to="us-gaap_InvestmentOwnedSubjectToOptionExerciseDates_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentOwnedSubjectToOptionExerciseDates_lbl" xml:lang="en-US">Investment Owned Subject To Option Exercise Dates</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentOwnedSubjectToOptionExerciseDates_lbl" xml:lang="en-US">Expiration date</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_CollateralAmountOnOpenFuturesContracts" xlink:label="uso_CollateralAmountOnOpenFuturesContracts" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_CollateralAmountOnOpenFuturesContracts" xlink:to="uso_CollateralAmountOnOpenFuturesContracts_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_CollateralAmountOnOpenFuturesContracts_lbl" xml:lang="en-US">Collateral Amount On Open Futures Contracts.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_CollateralAmountOnOpenFuturesContracts_lbl" xml:lang="en-US">Collateral Amount On Open Futures Contracts</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentInterestRate" xlink:label="us-gaap_InvestmentInterestRate" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentInterestRate" xlink:to="us-gaap_InvestmentInterestRate_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentInterestRate_lbl" xml:lang="en-US">Investment Interest Rate</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_InvestmentOwnedPeriodOfYieldOnFunds" xlink:label="uso_InvestmentOwnedPeriodOfYieldOnFunds" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_InvestmentOwnedPeriodOfYieldOnFunds" xlink:to="uso_InvestmentOwnedPeriodOfYieldOnFunds_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_InvestmentOwnedPeriodOfYieldOnFunds_lbl" xml:lang="en-US">Period of Yield on funds.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_InvestmentOwnedPeriodOfYieldOnFunds_lbl" xml:lang="en-US">Investment Owned, Period of Yield On Funds</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_InvestmentOwnedPeriodOfYieldOnFunds_lbl" xml:lang="en-US">Investment, Period of Yield</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xml:lang="en-US">Condensed Statements of Operations</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_IncomeAbstract" xlink:label="uso_IncomeAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_IncomeAbstract" xlink:to="uso_IncomeAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_IncomeAbstract_lbl" xml:lang="en-US">Income [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_IncomeAbstract_lbl" xml:lang="en-US">Income [Abstract]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PartnersCapitalAccountContributions" xlink:label="us-gaap_PartnersCapitalAccountContributions" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PartnersCapitalAccountContributions" xlink:to="us-gaap_PartnersCapitalAccountContributions_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PartnersCapitalAccountContributions_lbl" xml:lang="en-US">Partners Capital Account Contributions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_PartnersCapitalAccountContributions_lbl" xml:lang="en-US">Addition of partnership shares</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PartnersCapitalAccountRedemptions" xlink:label="us-gaap_PartnersCapitalAccountRedemptions" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PartnersCapitalAccountRedemptions" xlink:to="us-gaap_PartnersCapitalAccountRedemptions_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PartnersCapitalAccountRedemptions_lbl" xml:lang="en-US">Partners Capital Account Redemptions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PartnersCapitalAccountRedemptions_lbl" xml:lang="en-US">Redemption of partnership shares, respectively</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PartnersCapitalAccountUnitsContributed" xlink:label="us-gaap_PartnersCapitalAccountUnitsContributed" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PartnersCapitalAccountUnitsContributed" xlink:to="us-gaap_PartnersCapitalAccountUnitsContributed_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PartnersCapitalAccountUnitsContributed_lbl" xml:lang="en-US">Partners Capital Account Units Contributed</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PartnersCapitalAccountUnitsContributed_lbl" xml:lang="en-US">Addition of partnership units</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PartnersCapitalAccountUnitsRedeemed" xlink:label="us-gaap_PartnersCapitalAccountUnitsRedeemed" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PartnersCapitalAccountUnitsRedeemed" xlink:to="us-gaap_PartnersCapitalAccountUnitsRedeemed_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PartnersCapitalAccountUnitsRedeemed_lbl" xml:lang="en-US">Partners Capital Account Units Redeemed</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PartnersCapitalAccountUnitsRedeemed_lbl" xml:lang="en-US">Redemption of partnership units</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US">Condensed Statements of Cash Flows</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Cash Flows from Operating Activities:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts" xlink:label="us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts" xlink:to="us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts_lbl" xml:lang="en-US">Unrealized Gain Loss On Derivatives And Commodity Contracts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts_lbl" xml:lang="en-US">Change in unrealized (gain) loss on open commodity futures contracts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts_lbl" xml:lang="en-US">Change in Unrealized Gain (Loss) on Derivatives Recognized in Income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInDividendsReceivable" xlink:label="us-gaap_IncreaseDecreaseInDividendsReceivable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDividendsReceivable" xlink:to="us-gaap_IncreaseDecreaseInDividendsReceivable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInDividendsReceivable_lbl" xml:lang="en-US">Increase Decrease In Dividends Receivable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInDividendsReceivable_lbl" xml:lang="en-US">(Increase) decrease in dividends receivable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet" xlink:label="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet" xlink:to="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_lbl" xml:lang="en-US">Increase (Decrease) in Accrued Interest Receivable, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_lbl" xml:lang="en-US">(Increase) decrease in interest receivable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_lbl" xml:lang="en-US">Increase (Decrease) in Accounts Receivable, Related Parties</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_lbl" xml:lang="en-US">(Increase) decrease in prepaid insurance</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidExpense" xlink:to="us-gaap_IncreaseDecreaseInPrepaidExpense_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense_lbl" xml:lang="en-US">Increase (Decrease) in Prepaid Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense_lbl" xml:lang="en-US">(Increase) decrease in prepaid registration fees</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_IncreaseDecreaseInPayablesDueToCustomers" xlink:label="uso_IncreaseDecreaseInPayablesDueToCustomers" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_IncreaseDecreaseInPayablesDueToCustomers" xlink:to="uso_IncreaseDecreaseInPayablesDueToCustomers_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_IncreaseDecreaseInPayablesDueToCustomers_lbl" xml:lang="en-US">The change during the period, either increase or decrease, in amounts payable due to broker.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_IncreaseDecreaseInPayablesDueToCustomers_lbl" xml:lang="en-US">Increase Decrease In Payables Due To Customers</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="uso_IncreaseDecreaseInPayablesDueToCustomers_lbl" xml:lang="en-US">Increase (decrease) in payable due to Broker</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_IncreaseDecreaseManagementFeesPayable" xlink:label="uso_IncreaseDecreaseManagementFeesPayable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_IncreaseDecreaseManagementFeesPayable" xlink:to="uso_IncreaseDecreaseManagementFeesPayable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_IncreaseDecreaseManagementFeesPayable_lbl" xml:lang="en-US">Net change in management fee payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_IncreaseDecreaseManagementFeesPayable_lbl" xml:lang="en-US">Increase Decrease Management Fees Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_IncreaseDecreaseManagementFeesPayable_lbl" xml:lang="en-US">Increase (decrease) in General Partner management fees payable</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_IncreaseDecreaseInProfessionalFeesPayable" xlink:label="uso_IncreaseDecreaseInProfessionalFeesPayable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_IncreaseDecreaseInProfessionalFeesPayable" xlink:to="uso_IncreaseDecreaseInProfessionalFeesPayable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_IncreaseDecreaseInProfessionalFeesPayable_lbl" xml:lang="en-US">Increase (Decrease) In Professional Fees Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_IncreaseDecreaseInProfessionalFeesPayable_lbl" xml:lang="en-US">Increase Decrease In Professional Fees Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_IncreaseDecreaseInProfessionalFeesPayable_lbl" xml:lang="en-US">Increase (decrease) in professional fees payable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPayablesToBrokerDealers" xlink:label="us-gaap_IncreaseDecreaseInPayablesToBrokerDealers" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPayablesToBrokerDealers" xlink:to="us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_lbl" xml:lang="en-US">Increase (Decrease) in Payables to Broker-Dealers and Clearing Organizations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_lbl" xml:lang="en-US">Increase (decrease) in brokerage commissions payable</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_IncreaseDecreaseInDirectorsFeesPayable" xlink:label="uso_IncreaseDecreaseInDirectorsFeesPayable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_IncreaseDecreaseInDirectorsFeesPayable" xlink:to="uso_IncreaseDecreaseInDirectorsFeesPayable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_IncreaseDecreaseInDirectorsFeesPayable_lbl" xml:lang="en-US">The amount of information pertaining to increase (decrease) in directors fees payable of an entity during the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_IncreaseDecreaseInDirectorsFeesPayable_lbl" xml:lang="en-US">Increase (Decrease) In Directors Fees Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="uso_IncreaseDecreaseInDirectorsFeesPayable_lbl" xml:lang="en-US">Increase (decrease) in directors' fees payable</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_IncreaseDecreaseInLicenseFeesPayable" xlink:label="uso_IncreaseDecreaseInLicenseFeesPayable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_IncreaseDecreaseInLicenseFeesPayable" xlink:to="uso_IncreaseDecreaseInLicenseFeesPayable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_IncreaseDecreaseInLicenseFeesPayable_lbl" xml:lang="en-US">Increase (Decrease) in License Fees Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_IncreaseDecreaseInLicenseFeesPayable_lbl" xml:lang="en-US">Increase Decrease In License Fees Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_IncreaseDecreaseInLicenseFeesPayable_lbl" xml:lang="en-US">Increase (decrease) in license fees payable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US">Net cash provided by (used in) operating activities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US">Cash Flows from Financing Activities:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromPartnershipContribution" xlink:label="us-gaap_ProceedsFromPartnershipContribution" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromPartnershipContribution" xlink:to="us-gaap_ProceedsFromPartnershipContribution_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromPartnershipContribution_lbl" xml:lang="en-US">Proceeds From Partnership Contribution</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromPartnershipContribution_lbl" xml:lang="en-US">Addition of partnership shares</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_PaymentsToPartnershipRedemption" xlink:label="uso_PaymentsToPartnershipRedemption" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_PaymentsToPartnershipRedemption" xlink:to="uso_PaymentsToPartnershipRedemption_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_PaymentsToPartnershipRedemption_lbl" xml:lang="en-US">Payments To Partnership Redemption.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_PaymentsToPartnershipRedemption_lbl" xml:lang="en-US">Payments To Partnership Redemption</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="uso_PaymentsToPartnershipRedemption_lbl" xml:lang="en-US">Redemption of partnership shares</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_FeesPaidByFundAndRelatedPartyTransactionsAbstract" xlink:to="uso_FeesPaidByFundAndRelatedPartyTransactionsAbstract_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermContractsOrProgramsDisclosureTextBlock_lbl" xml:lang="en-US">Long-term Contracts or Programs Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermContractsOrProgramsDisclosureTextBlock_lbl" xml:lang="en-US">CONTRACTS AND AGREEMENTS</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_FinancialInstrumentsOffBalanceSheetRisksAndContingenciesAbstract" xlink:label="uso_FinancialInstrumentsOffBalanceSheetRisksAndContingenciesAbstract" />
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinancialInstrumentsDisclosureTextBlock" xlink:label="us-gaap_FinancialInstrumentsDisclosureTextBlock" />
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    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_FinancialHighlightsAbstract" xlink:label="uso_FinancialHighlightsAbstract" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdditionalFinancialInformationDisclosureTextBlock_lbl" xml:lang="en-US">FINANCIAL HIGHLIGHTS</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="us-gaap_QuarterlyFinancialInformationDisclosureAbstract" />
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_QuarterlyFinancialInformationTextBlock" xlink:label="us-gaap_QuarterlyFinancialInformationTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_QuarterlyFinancialInformationTextBlock" xlink:to="us-gaap_QuarterlyFinancialInformationTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_QuarterlyFinancialInformationTextBlock_lbl" xml:lang="en-US">Quarterly Financial Information [Text Block]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_UnitsIssuedDuringPeriodValueNewIssues_lbl" xml:lang="en-US">Units Issued During Period, Value, New Issues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UnitsIssuedDuringPeriodValueNewIssues_lbl" xml:lang="en-US">Units Issued During Period Value New Issues</label>
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    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_NumberOfUnitPerBasket" xlink:label="uso_NumberOfUnitPerBasket" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_NumberOfUnitPerBasket" xlink:to="uso_NumberOfUnitPerBasket_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_NumberOfUnitPerBasket_lbl" xml:lang="en-US">Number of units per basket.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_NumberOfUnitPerBasket_lbl" xml:lang="en-US">Number Of Unit Per Basket</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="uso_NumberOfUnitPerBasket_lbl" xml:lang="en-US">Number of units per basket</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_SignificantAccountingPoliciesTable" xlink:label="uso_SignificantAccountingPoliciesTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_SignificantAccountingPoliciesTable" xlink:to="uso_SignificantAccountingPoliciesTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_SignificantAccountingPoliciesTable_lbl" xml:lang="en-US">Significant Accounting Policies [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_SignificantAccountingPoliciesTable_lbl" xml:lang="en-US">Significant Accounting Policies [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_SignificantAccountingPoliciesTable_lbl" xml:lang="en-US">Significant Accounting Policies [Table]</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_SignificantAccountingPoliciesLineItems" xlink:label="uso_SignificantAccountingPoliciesLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_SignificantAccountingPoliciesLineItems" xlink:to="uso_SignificantAccountingPoliciesLineItems_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_SignificantAccountingPoliciesLineItems_lbl" xml:lang="en-US">Significant Accounting Policies [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_SignificantAccountingPoliciesLineItems_lbl" xml:lang="en-US">Significant Accounting Policies [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_SignificantAccountingPoliciesLineItems_lbl" xml:lang="en-US">Significant Accounting Policies</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense" xlink:to="us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense_lbl" xml:lang="en-US">Income Tax Examination, Penalties and Interest Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense_lbl" xml:lang="en-US">Interest expense or penalties</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xml:lang="en-US">Weighted Average Number of Shares Outstanding</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_lbl" xml:lang="en-US">Schedule of Related Party Transactions, by Related Party [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TypeOfArrangementAxis" xlink:label="us-gaap_TypeOfArrangementAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TypeOfArrangementAxis" xlink:to="us-gaap_TypeOfArrangementAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xml:lang="en-US">Type Of Arrangement [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:to="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xml:lang="en-US">Arrangements And Nonarrangement Transactions [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xml:lang="en-US">Arrangements and Non-arrangement Transactions [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LicensingAgreementsMember" xlink:label="us-gaap_LicensingAgreementsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LicensingAgreementsMember" xlink:to="us-gaap_LicensingAgreementsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LicensingAgreementsMember_lbl" xml:lang="en-US">Licensing Agreements [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LicensingAgreementsMember_lbl" xml:lang="en-US">Licensing Agreements</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_FeesPaidAndRelatedPartyTransactionsLineItems" xlink:label="uso_FeesPaidAndRelatedPartyTransactionsLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_FeesPaidAndRelatedPartyTransactionsLineItems" xlink:to="uso_FeesPaidAndRelatedPartyTransactionsLineItems_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_FeesPaidAndRelatedPartyTransactionsLineItems_lbl" xml:lang="en-US">Fees Paid and Related Party Transactions [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_FeesPaidAndRelatedPartyTransactionsLineItems_lbl" xml:lang="en-US">Fees Paid And Related Party Transactions [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_FeesPaidAndRelatedPartyTransactionsLineItems_lbl" xml:lang="en-US">Fees Paid And Related Party Transactions</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_PercentageOfContractualObligationToPayFee" xlink:label="uso_PercentageOfContractualObligationToPayFee" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_PercentageOfContractualObligationToPayFee" xlink:to="uso_PercentageOfContractualObligationToPayFee_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_PercentageOfContractualObligationToPayFee_lbl" xml:lang="en-US">The percentage of Contractual Obligation to Pay Fee.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_PercentageOfContractualObligationToPayFee_lbl" xml:lang="en-US">Percentage of Contractual Obligation to Pay Fee</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_PercentageOfContractualObligationToPayFee_lbl" xml:lang="en-US">USCF Management Fee</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_BaseFeePercentage" xlink:label="uso_BaseFeePercentage" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_BaseFeePercentage" xlink:to="uso_BaseFeePercentage_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_BaseFeePercentage_lbl" xml:lang="en-US">Base Fee Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_BaseFeePercentage_lbl" xml:lang="en-US">Base Fee Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_BaseFeePercentage_lbl" xml:lang="en-US">Fee percentage</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherGeneralExpense" xlink:label="us-gaap_OtherGeneralExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherGeneralExpense" xlink:to="us-gaap_OtherGeneralExpense_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherGeneralExpense_lbl" xml:lang="en-US">Other General Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherGeneralExpense_lbl" xml:lang="en-US">Investor tax reporting cost</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeTable" xlink:label="us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeTable" xlink:to="us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeTable_lbl" xml:lang="en-US">Long Duration Contracts Assumptions By Product And Guarantee [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeTable_lbl" xml:lang="en-US">Long-Duration Contracts, Assumptions, by Product and Guarantee [Table]</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_MarketingAgreementMember" xlink:label="uso_MarketingAgreementMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_MarketingAgreementMember" xlink:to="uso_MarketingAgreementMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_MarketingAgreementMember_lbl" xml:lang="en-US">Marketing Agreement [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_MarketingAgreementMember_lbl" xml:lang="en-US">Marketing Agreement [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_MarketingAgreementMember_lbl" xml:lang="en-US">Marketing Agreement</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_BrokerageAndFuturesCommissionMerchantAgreementsMember" xlink:label="uso_BrokerageAndFuturesCommissionMerchantAgreementsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_BrokerageAndFuturesCommissionMerchantAgreementsMember" xlink:to="uso_BrokerageAndFuturesCommissionMerchantAgreementsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_BrokerageAndFuturesCommissionMerchantAgreementsMember_lbl" xml:lang="en-US">Brokerage And Futures Commission Merchant Agreements [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_BrokerageAndFuturesCommissionMerchantAgreementsMember_lbl" xml:lang="en-US">Brokerage and Futures Commission Merchant Agreements</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis" xlink:label="srt_RangeAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeAxis" xlink:to="srt_RangeAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_RangeAxis_lbl" xml:lang="en-US">Range [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember" xlink:label="srt_RangeMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeMember" xlink:to="srt_RangeMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_RangeMember_lbl" xml:lang="en-US">Range [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_RangeMember_lbl" xml:lang="en-US">Range [Domain]</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MinimumMember" xlink:to="srt_MinimumMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MinimumMember_lbl" xml:lang="en-US">Minimum [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_MinimumMember_lbl" xml:lang="en-US">Minimum</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MaximumMember_lbl" xml:lang="en-US">Maximum [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_MaximumMember_lbl" xml:lang="en-US">Maximum</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeLineItems_lbl" xml:lang="en-US">Long Duration Contracts Assumptions By Product And Guarantee [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeLineItems_lbl" xml:lang="en-US">Long-Duration Contracts, Assumptions by Product and Guarantee</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MarketingExpense" xlink:label="us-gaap_MarketingExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MarketingExpense" xlink:to="us-gaap_MarketingExpense_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MarketingExpense_lbl" xml:lang="en-US">Marketing Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MarketingExpense_lbl" xml:lang="en-US">Marketing fee exclusive of the incentive fee</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_BasisAmountForFeePercentage" xlink:label="uso_BasisAmountForFeePercentage" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_BasisAmountForFeePercentage" xlink:to="uso_BasisAmountForFeePercentage_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_BasisAmountForFeePercentage_lbl" xml:lang="en-US">Basis Amount for Fee Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_BasisAmountForFeePercentage_lbl" xml:lang="en-US">Basis Amount For Fee Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_BasisAmountForFeePercentage_lbl" xml:lang="en-US">Base amount for determining fee percentage</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_CommissionsPaid" xlink:label="uso_CommissionsPaid" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_CommissionsPaid" xlink:to="uso_CommissionsPaid_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_RebalancingInvestmentsTransactionMember_lbl" xml:lang="en-US">Rebalancing Investments Transaction</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_PercentageOfAverageDailyNetAssets_lbl" xml:lang="en-US">Percentage Of Average Daily Net Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_PercentageOfAverageDailyNetAssets_lbl" xml:lang="en-US">Percentage of average daily net assets</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LossContingenciesTable_lbl" xml:lang="en-US">Loss Contingencies [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LossContingenciesTable_lbl" xml:lang="en-US">Loss Contingencies [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAxis" xlink:label="us-gaap_CashAndCashEquivalentsAxis" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsAxis_lbl" xml:lang="en-US">Cash and Cash Equivalents [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" xlink:to="us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_lbl" xml:lang="en-US">Cash and Cash Equivalents [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="us-gaap_MoneyMarketFundsMember" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xml:lang="en-US">Money Market Funds [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xml:lang="en-US">United States Money Market Funds</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_USTreasurySecuritiesMember_lbl" xml:lang="en-US">U S Treasury Securities [Member]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xml:lang="en-US">Loss Contingencies [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xml:lang="en-US">Loss Contingencies</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Deposits" xlink:label="us-gaap_Deposits" />
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_AverageSalesPriceAndProductionCostsPerUnitOfProductionTable" xlink:label="srt_AverageSalesPriceAndProductionCostsPerUnitOfProductionTable" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_AverageSalesPriceAndProductionCostsPerUnitOfProductionTable_lbl" xml:lang="en-US">Average Sales Price and Production Costs Per Unit of Production [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ConsolidatedOilAndGasProductionAbstract" xlink:label="srt_ConsolidatedOilAndGasProductionAbstract" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ConsolidatedOilAndGasProductionAbstract_lbl" xml:lang="en-US">Average Sales Price And Production Costs Per Unit Of Production [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_ConsolidatedOilAndGasProductionAbstract_lbl" xml:lang="en-US">Average Sales Price and Production Costs Per Unit of Production</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPartnersCapitalRollForward" xlink:label="us-gaap_IncreaseDecreaseInPartnersCapitalRollForward" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_lbl" xml:lang="en-US">Per Share Operating Performance:</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_TotalExpensesPerUnit_lbl" xml:lang="en-US">Total Expenses, Per Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_TotalExpensesPerUnit_lbl" xml:lang="en-US">Total Expenses Per Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_TotalExpensesPerUnit_lbl" xml:lang="en-US">Total expenses</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_IncreaseDecreaseInNetAssetValuePerUnit" xlink:label="uso_IncreaseDecreaseInNetAssetValuePerUnit" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_AverageNetAssetsAbstract_lbl" xml:lang="en-US">Average Net Assets [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_AverageNetAssetsAbstract_lbl" xml:lang="en-US">Average Net Assets [Abstract]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_PercentageOfTotalRevenue_lbl" xml:lang="en-US">Percentage Of Total Revenue</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_ManagementIncentiveFeePercentage_lbl" xml:lang="en-US">Management Incentive Fee Percentage</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_ManagementIncentiveFeePercentage_lbl" xml:lang="en-US">Management fees</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_NymexWtiCrudeOilFuturesJuly2021contractsExpiringJune2021Member_lbl" xml:lang="en-US">The member stands for NYMEX WTI Crude Oil Futures July 2021 contracts, expiring  June 2021.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_NymexWtiCrudeOilFuturesDecember2021ContractsExpiringNovember2021Member_lbl" xml:lang="en-US">NYMEX WTI Crude Oil Futures December 2021 contracts, expiring November 2021</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesOneMember" xlink:to="uso_UsTreasuryBillSecuritiesOneMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_UsTreasuryBillSecuritiesOneMember_lbl" xml:lang="en-US">This category includes information about negotiable debt securities issued by the United States Department of the Treasury which generally have maturities of one year or less, are interest bearing, and are backed by the full faith and credit of the United States government.</label>
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    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesThreeMember" xlink:label="uso_UsTreasuryBillSecuritiesThreeMember" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesThreeMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 2.01%, 1/16/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesFourMember" xlink:label="uso_UsTreasuryBillSecuritiesFourMember" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesFourMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 2.04%, 1/23/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesFiveMember" xlink:label="uso_UsTreasuryBillSecuritiesFiveMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesFiveMember" xlink:to="uso_UsTreasuryBillSecuritiesFiveMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesFiveMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Five [Member]</label>
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    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesSixMember" xlink:label="uso_UsTreasuryBillSecuritiesSixMember" />
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    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesSevenMember" xlink:label="uso_UsTreasuryBillSecuritiesSevenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesSevenMember" xlink:to="uso_UsTreasuryBillSecuritiesSevenMember_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesSevenMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.87%, 2/13/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesEightMember" xlink:label="uso_UsTreasuryBillSecuritiesEightMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesEightMember" xlink:to="uso_UsTreasuryBillSecuritiesEightMember_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesEightMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.85%, 2/20/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesNineMember" xlink:label="uso_UsTreasuryBillSecuritiesNineMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesNineMember" xlink:to="uso_UsTreasuryBillSecuritiesNineMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesNineMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Nine [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesNineMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.85%, 2/27/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesTenMember" xlink:label="uso_UsTreasuryBillSecuritiesTenMember" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesTenMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Ten [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesTenMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.83%, 3/05/2020</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesTwelveMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Twelve [Member]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesThirteenMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Thirteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesThirteenMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.70%, 4/02/2020</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesFourteenMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Fourteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesFourteenMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.64%, 4/09/2020</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesFifteenMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Fifteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesFifteenMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.60%, 4/16/2020</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesSixteenMember" xlink:to="uso_UsTreasuryBillSecuritiesSixteenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesSixteenMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Sixteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesSixteenMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.60%, 4/23/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesSeventeenMember" xlink:label="uso_UsTreasuryBillSecuritiesSeventeenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesSeventeenMember" xlink:to="uso_UsTreasuryBillSecuritiesSeventeenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesSeventeenMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Seventeen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesSeventeenMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.59%, 4/30/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesEighteenMember" xlink:label="uso_UsTreasuryBillSecuritiesEighteenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesEighteenMember" xlink:to="uso_UsTreasuryBillSecuritiesEighteenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesEighteenMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Eighteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesEighteenMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.54%, 5/07/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesNineteenMember" xlink:label="uso_UsTreasuryBillSecuritiesNineteenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesNineteenMember" xlink:to="uso_UsTreasuryBillSecuritiesNineteenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesNineteenMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Nineteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesNineteenMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.55%, 5/14/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesTwentyMember" xlink:label="uso_UsTreasuryBillSecuritiesTwentyMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesTwentyMember" xlink:to="uso_UsTreasuryBillSecuritiesTwentyMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesTwentyMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Twenty [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesTwentyMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.55%, 5/21/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesTwentyOneMember" xlink:label="uso_UsTreasuryBillSecuritiesTwentyOneMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesTwentyOneMember" xlink:to="uso_UsTreasuryBillSecuritiesTwentyOneMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesTwentyOneMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Twenty One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesTwentyOneMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.58%, 5/28/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesTwentyTwoMember" xlink:label="uso_UsTreasuryBillSecuritiesTwentyTwoMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesTwentyTwoMember" xlink:to="uso_UsTreasuryBillSecuritiesTwentyTwoMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesTwentyTwoMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Twenty Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesTwentyTwoMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.53%, 6/04/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesTwentyThreeMember" xlink:label="uso_UsTreasuryBillSecuritiesTwentyThreeMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesTwentyThreeMember" xlink:to="uso_UsTreasuryBillSecuritiesTwentyThreeMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesTwentyThreeMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Twenty Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesTwentyThreeMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.53%, 6/11/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesTwentyFourMember" xlink:label="uso_UsTreasuryBillSecuritiesTwentyFourMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesTwentyFourMember" xlink:to="uso_UsTreasuryBillSecuritiesTwentyFourMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesTwentyFourMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Twenty Four [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesTwentyFourMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.54%, 6/18/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_UsTreasuryBillSecuritiesTwentyFiveMember" xlink:label="uso_UsTreasuryBillSecuritiesTwentyFiveMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsTreasuryBillSecuritiesTwentyFiveMember" xlink:to="uso_UsTreasuryBillSecuritiesTwentyFiveMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_UsTreasuryBillSecuritiesTwentyFiveMember_lbl" xml:lang="en-US">Us Treasury Bill Securities Twenty Five [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsTreasuryBillSecuritiesTwentyFiveMember_lbl" xml:lang="en-US">U.S. Treasury Bills, 1.57%, 6/25/2020</label>
    <loc xlink:type="locator" xlink:href="uso-20201231.xsd#uso_FidelityInvestmentsMoneyMarketFundsGovernmentPortfolioMember" xlink:label="uso_FidelityInvestmentsMoneyMarketFundsGovernmentPortfolioMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_FidelityInvestmentsMoneyMarketFundsGovernmentPortfolioMember" xlink:to="uso_FidelityInvestmentsMoneyMarketFundsGovernmentPortfolioMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_FidelityInvestmentsMoneyMarketFundsGovernmentPortfolioMember_lbl" xml:lang="en-US">Fidelity Investments Money Market Funds Government Portfolio [Member].</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_FidelityInvestmentsMoneyMarketFundsGovernmentPortfolioMember_lbl" xml:lang="en-US">Fidelity Investments Money Market Funds - Government Portfolio</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_RbcU.s.governmentMoneyMarketFundInstitutionalShareClass0.02Member" xlink:to="uso_RbcU.s.governmentMoneyMarketFundInstitutionalShareClass0.02Member_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_RbcU.s.governmentMoneyMarketFundInstitutionalShareClass0.02Member_lbl" xml:lang="en-US">This member stands for RBC U.S.Government Money Market Fund - Institutuional Share Class, 0.02%.</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_CreationBasketsMember" xlink:to="uso_CreationBasketsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_CreationBasketsMember_lbl" xml:lang="en-US">Creation Baskets [Member]</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_RedemptionBasketsMember" xlink:to="uso_RedemptionBasketsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_RedemptionBasketsMember_lbl" xml:lang="en-US">Redemption Baskets [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_RedemptionBasketsMember_lbl" xml:lang="en-US">Redemption Baskets [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_RedemptionBasketsMember_lbl" xml:lang="en-US">Redemption Baskets</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UscfMember" xlink:to="uso_UscfMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_UscfMember_lbl" xml:lang="en-US">No definition</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_UsoAndRelatedPublicFundsMember" xlink:to="uso_UsoAndRelatedPublicFundsMember_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_UsoAndRelatedPublicFundsMember_lbl" xml:lang="en-US">USO And Related Public Funds</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_GroupThreeMember_lbl" xml:lang="en-US">Group Three [Member]</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="uso_GroupFourMember" xlink:to="uso_GroupFourMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="uso_GroupFourMember_lbl" xml:lang="en-US">Group Four [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_GroupFourMember_lbl" xml:lang="en-US">Group Four [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="uso_GroupFourMember_lbl" xml:lang="en-US">USOF's assets from $500 million - $4 billion</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="uso_GroupFiveMember_lbl" xml:lang="en-US">Group Five [Member]</label>
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