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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AccountingPoliciesAbstract" xml:lang="en-US">Accounting Policies [Abstract]</label>

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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock" xml:lang="en-US">Significant Accounting Policies [Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock" xml:lang="en-US">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</label>

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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract" xml:lang="en-US">Related Party Transactions [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract" xlink:to="lab_us-gaap_RelatedPartyTransactionsAbstract" />

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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xml:lang="en-US">Related Party Transactions Disclosure [Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xml:lang="en-US">FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ContractorsAbstract" xlink:label="loc_us-gaap_ContractorsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ContractorsAbstract" xml:lang="en-US">Contractors [Abstract]</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermContractsOrProgramsDisclosureTextBlock" xlink:label="loc_us-gaap_LongTermContractsOrProgramsDisclosureTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LongTermContractsOrProgramsDisclosureTextBlock" 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/verboseLabel" xlink:label="lab_us-gaap_LongTermContractsOrProgramsDisclosureTextBlock" xml:lang="en-US">CONTRACTS AND AGREEMENTS</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentsAllOtherInvestmentsAbstract" xlink:label="loc_us-gaap_InvestmentsAllOtherInvestmentsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_InvestmentsAllOtherInvestmentsAbstract" xml:lang="en-US">Investments, All Other Investments [Abstract]</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FinancialInstrumentsDisclosureTextBlock" xlink:label="loc_us-gaap_FinancialInstrumentsDisclosureTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FinancialInstrumentsDisclosureTextBlock" xml:lang="en-US">Financial Instruments Disclosure [Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_FinancialInstrumentsDisclosureTextBlock" xml:lang="en-US">FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES</label>

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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_SupplementalFinancialInformationDisclosureAbstract" xml:lang="en-US">Supplemental Financial Information Disclosure [Abstract]</label>

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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_SupplementalFinancialInformationDisclosureTextBlock" xml:lang="en-US">FINANCIAL HIGHLIGHTS</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_SupplementalFinancialInformationDisclosureTextBlock" xml:lang="en-US">The entire disclosure for supplemental financial information.</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract" xml:lang="en-US">Fair Value Disclosures [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract" xlink:to="lab_us-gaap_FairValueDisclosuresAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock" xml:lang="en-US">Fair Value Disclosures [Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock" xml:lang="en-US">FAIR VALUE OF FINANCIAL INSTRUMENTS</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SubsequentEventsAbstract" xml:lang="en-US">Subsequent Events [Abstract]</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="loc_us-gaap_SubsequentEventsTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SubsequentEventsTextBlock" xml:lang="en-US">Subsequent Events [Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_SubsequentEventsTextBlock" xml:lang="en-US">SUBSEQUENT EVENTS</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock" xml:lang="en-US">Basis of Presentation and Significant Accounting Policies [Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock" xml:lang="en-US">Basis of Presentation</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="loc_us-gaap_RevenueRecognitionPolicyTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RevenueRecognitionPolicyTextBlock" xml:lang="en-US">Revenue Recognition, Policy [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_RevenueRecognitionPolicyTextBlock" xml:lang="en-US">Revenue Recognition</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueRecognitionPolicyTextBlock" xlink:to="lab_us-gaap_RevenueRecognitionPolicyTextBlock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommissionsPolicy" xlink:label="loc_us-gaap_CommissionsPolicy" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CommissionsPolicy" xml:lang="en-US">Commissions, Policy [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CommissionsPolicy" xml:lang="en-US">Brokerage Commissions</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommissionsPolicy" xlink:to="lab_us-gaap_CommissionsPolicy" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncomeTaxPolicyTextBlock" xml:lang="en-US">Income Tax, Policy [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_IncomeTaxPolicyTextBlock" xml:lang="en-US">Income Taxes</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxPolicyTextBlock" xlink:to="lab_us-gaap_IncomeTaxPolicyTextBlock" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_CreationsAndRedemptionsPolicyTextBlock" xlink:label="loc_bno_CreationsAndRedemptionsPolicyTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_CreationsAndRedemptionsPolicyTextBlock" xml:lang="en-US">Creations and Redemptions [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_CreationsAndRedemptionsPolicyTextBlock" xml:lang="en-US">Creations and Redemptions</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_CreationsAndRedemptionsPolicyTextBlock" xml:lang="en-US">Disclosure of creations and redemptions policy reported during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_CreationsAndRedemptionsPolicyTextBlock" xlink:to="lab_bno_CreationsAndRedemptionsPolicyTextBlock" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PartnershipCapitalAndAllocationOfPartnershipIncomeAndLossesPolicyTextBlock" xlink:label="loc_bno_PartnershipCapitalAndAllocationOfPartnershipIncomeAndLossesPolicyTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PartnershipCapitalAndAllocationOfPartnershipIncomeAndLossesPolicyTextBlock" xml:lang="en-US">Partnership Capital and Allocation Of Partnership Income and Losses [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PartnershipCapitalAndAllocationOfPartnershipIncomeAndLossesPolicyTextBlock" xml:lang="en-US">Partnership Capital and Allocation of Partnership Income and Losses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PartnershipCapitalAndAllocationOfPartnershipIncomeAndLossesPolicyTextBlock" xml:lang="en-US">Disclosure of partnership capital and allocation of partnership income and losses policy reported during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PartnershipCapitalAndAllocationOfPartnershipIncomeAndLossesPolicyTextBlock" xlink:to="lab_bno_PartnershipCapitalAndAllocationOfPartnershipIncomeAndLossesPolicyTextBlock" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_CalculationOfPerUnitNetAssetValuePolicyTextBlock" xlink:label="loc_bno_CalculationOfPerUnitNetAssetValuePolicyTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_CalculationOfPerUnitNetAssetValuePolicyTextBlock" xml:lang="en-US">Calculation Of Per Unit Net Asset Value [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_CalculationOfPerUnitNetAssetValuePolicyTextBlock" xml:lang="en-US">Calculation of Per Unit Net Asset Value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_CalculationOfPerUnitNetAssetValuePolicyTextBlock" xml:lang="en-US">The disclosure of calculation of per unit net asset value policy reported during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_CalculationOfPerUnitNetAssetValuePolicyTextBlock" xlink:to="lab_bno_CalculationOfPerUnitNetAssetValuePolicyTextBlock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_EarningsPerSharePolicyTextBlock" xml:lang="en-US">Earnings Per Share, Policy [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_EarningsPerSharePolicyTextBlock" xml:lang="en-US">Net Income (Loss) Per Share</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerSharePolicyTextBlock" xlink:to="lab_us-gaap_EarningsPerSharePolicyTextBlock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DeferredChargesPolicyTextBlock" xlink:label="loc_us-gaap_DeferredChargesPolicyTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DeferredChargesPolicyTextBlock" xml:lang="en-US">Deferred Charges, Policy [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DeferredChargesPolicyTextBlock" xml:lang="en-US">Offering Costs</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredChargesPolicyTextBlock" xlink:to="lab_us-gaap_DeferredChargesPolicyTextBlock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CashAndCashEquivalentsPolicyTextBlock" xml:lang="en-US">Cash and Cash Equivalents, Policy [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CashAndCashEquivalentsPolicyTextBlock" xml:lang="en-US">Cash Equivalents</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:to="lab_us-gaap_CashAndCashEquivalentsPolicyTextBlock" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_ReclassificationPolicyTextBlockPolicyTextBlock" xlink:label="loc_bno_ReclassificationPolicyTextBlockPolicyTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_ReclassificationPolicyTextBlockPolicyTextBlock" xml:lang="en-US">Reclassification Policy Text Block [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_ReclassificationPolicyTextBlockPolicyTextBlock" xml:lang="en-US">Reclassification</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_ReclassificationPolicyTextBlockPolicyTextBlock" xml:lang="en-US">The disclosure for the reclassification policy reported during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_ReclassificationPolicyTextBlockPolicyTextBlock" xlink:to="lab_bno_ReclassificationPolicyTextBlockPolicyTextBlock" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_ScheduleOfPerUnitPerformanceDataAndOtherFinancialDataTableTextBlock" xlink:label="loc_bno_ScheduleOfPerUnitPerformanceDataAndOtherFinancialDataTableTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_ScheduleOfPerUnitPerformanceDataAndOtherFinancialDataTableTextBlock" xml:lang="en-US">Schedule Of Per Unit Performance Data And Other Financial Data [Table Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_bno_ScheduleOfPerUnitPerformanceDataAndOtherFinancialDataTableTextBlock" xml:lang="en-US">Schedule Of Per Unit Performance Data and Other Financial Data</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_ScheduleOfPerUnitPerformanceDataAndOtherFinancialDataTableTextBlock" xml:lang="en-US">Schedule of per unit peformance data and other financial data Table Text Block.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_ScheduleOfPerUnitPerformanceDataAndOtherFinancialDataTableTextBlock" xlink:to="lab_bno_ScheduleOfPerUnitPerformanceDataAndOtherFinancialDataTableTextBlock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementInputsDisclosureTextBlock" xlink:label="loc_us-gaap_FairValueMeasurementInputsDisclosureTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueMeasurementInputsDisclosureTextBlock" xml:lang="en-US">Fair Value, Measurement Inputs, Disclosure [Table Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_FairValueMeasurementInputsDisclosureTextBlock" xml:lang="en-US">Valuation of Securities Using Fair Value Hierarchy</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementInputsDisclosureTextBlock" xlink:to="lab_us-gaap_FairValueMeasurementInputsDisclosureTextBlock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock" xml:lang="en-US">Schedule Of Derivative Instruments In Statement Of Financial Position, Fair Value [Table Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock" xml:lang="en-US">Fair Value of Derivative Instruments</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock" xlink:to="lab_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock" xml:lang="en-US">Schedule Of Derivative Instruments, Gain (Loss) In Statement Of Financial Performance [Table Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock" xml:lang="en-US">Effect of Derivative Instruments on Condensed Statements of Operations</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock" xlink:to="lab_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract" xml:lang="en-US">Statement Of Financial Position [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementTable" xml:lang="en-US">Statement [Table]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementTable" xlink:to="lab_us-gaap_StatementTable" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_LegalEntityAxis" xml:lang="en-US">Legal Entity [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LegalEntityAxis" xlink:to="lab_dei_LegalEntityAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityDomain" xml:lang="en-US">Entity [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityDomain" xlink:to="lab_dei_EntityDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementLineItems" xml:lang="en-US">Statement [Line Items]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="lab_us-gaap_StatementLineItems" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AssetsAbstract" xml:lang="en-US">Assets [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AssetsAbstract" xml:lang="en-US">Assets</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="lab_us-gaap_AssetsAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and Cash Equivalents, At Carrying Value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and cash equivalents (Notes 2 and 5)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and Cash Equivalents, beginning of period</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and Cash Equivalents, end of period</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract" xlink:label="loc_us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract" xml:lang="en-US">Financial Instruments, Owned, At Fair Value [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract" xml:lang="en-US">Equity in trading accounts:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract" xlink:to="lab_us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Restricted Cash and Cash Equivalents, Current</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and cash equivalents</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:to="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_UnrealizedGainLossOnOpenCommodityFuturesContracts" xlink:label="loc_bno_UnrealizedGainLossOnOpenCommodityFuturesContracts" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_UnrealizedGainLossOnOpenCommodityFuturesContracts" xml:lang="en-US">Unrealized Gain Loss On Open Commodity Futures Contracts</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_bno_UnrealizedGainLossOnOpenCommodityFuturesContracts" xml:lang="en-US">Unrealized gain (loss) on open commodity futures contracts</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_UnrealizedGainLossOnOpenCommodityFuturesContracts" xml:lang="en-US">Exchange-Traded Futures Contracts Foreign Contracts</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_bno_UnrealizedGainLossOnOpenCommodityFuturesContracts" xml:lang="en-US">Fair value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_UnrealizedGainLossOnOpenCommodityFuturesContracts" xml:lang="en-US">Unrealized gain (loss) on open commodity futures contracts.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_UnrealizedGainLossOnOpenCommodityFuturesContracts" xlink:to="lab_bno_UnrealizedGainLossOnOpenCommodityFuturesContracts" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueFromOfficersOrStockholders" xlink:label="loc_us-gaap_DueFromOfficersOrStockholders" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DueFromOfficersOrStockholders" xml:lang="en-US">Due From Officers Or Stockholders</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DueFromOfficersOrStockholders" xml:lang="en-US">Receivable from General Partner (Note 3)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DueFromOfficersOrStockholders" xlink:to="lab_us-gaap_DueFromOfficersOrStockholders" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DividendsReceivable" xlink:label="loc_us-gaap_DividendsReceivable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DividendsReceivable" xml:lang="en-US">Dividends Receivable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DividendsReceivable" xml:lang="en-US">Dividend receivable</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsReceivable" xlink:to="lab_us-gaap_DividendsReceivable" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherAssets" xlink:label="loc_us-gaap_OtherAssets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OtherAssets" xml:lang="en-US">Other Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_OtherAssets" xml:lang="en-US">Other assets</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssets" xlink:to="lab_us-gaap_OtherAssets" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_Assets" xml:lang="en-US">Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_Assets" xml:lang="en-US">Total assets</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets" xlink:to="lab_us-gaap_Assets" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US">Liabilities and Equity [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US">Liabilities and Partners&#39; Capital</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TradingLiabilities" xlink:label="loc_us-gaap_TradingLiabilities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_TradingLiabilities" xml:lang="en-US">Trading Liabilities</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_TradingLiabilities" xml:lang="en-US">Payable for shares redeemed</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TradingLiabilities" xlink:to="lab_us-gaap_TradingLiabilities" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_ProfessionalFeesPayableCurrentAndNoncurrent" xlink:label="loc_bno_ProfessionalFeesPayableCurrentAndNoncurrent" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_ProfessionalFeesPayableCurrentAndNoncurrent" xml:lang="en-US">Professional Fees Payable Current and Noncurrent</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_ProfessionalFeesPayableCurrentAndNoncurrent" xml:lang="en-US">Professional fees payable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_ProfessionalFeesPayableCurrentAndNoncurrent" xml:lang="en-US">Professional fees payable Current and Noncurrent.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_ProfessionalFeesPayableCurrentAndNoncurrent" xlink:to="lab_bno_ProfessionalFeesPayableCurrentAndNoncurrent" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent" xlink:label="loc_us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent" xml:lang="en-US">Due To Officers Or Stockholders</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent" xml:lang="en-US">General Partner management fees payable (Note 3)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent" xlink:to="lab_us-gaap_DueToOfficersOrStockholdersCurrentAndNoncurrent" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations" xlink:label="loc_us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations" 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/verboseLabel" xlink:label="lab_us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations" xml:lang="en-US">Brokerage commissions payable</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations" xlink:to="lab_us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherLiabilities" xlink:label="loc_us-gaap_OtherLiabilities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OtherLiabilities" xml:lang="en-US">Other Liabilities</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_OtherLiabilities" xml:lang="en-US">Other liabilities</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilities" xlink:to="lab_us-gaap_OtherLiabilities" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_Liabilities" xml:lang="en-US">Liabilities</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_Liabilities" xml:lang="en-US">Total liabilities</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities" xlink:to="lab_us-gaap_Liabilities" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CommitmentsAndContingencies" xml:lang="en-US">Commitments and Contingencies</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CommitmentsAndContingencies" xml:lang="en-US">Commitments and Contingencies (Notes 3, 4 and 5)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingencies" xlink:to="lab_us-gaap_CommitmentsAndContingencies" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PartnersCapitalAbstract" xlink:label="loc_us-gaap_PartnersCapitalAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PartnersCapitalAbstract" xml:lang="en-US">Partners&#39; Capital [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_PartnersCapitalAbstract" xml:lang="en-US">Partners&#39; Capital</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnersCapitalAbstract" xlink:to="lab_us-gaap_PartnersCapitalAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GeneralPartnersCapitalAccount" xlink:label="loc_us-gaap_GeneralPartnersCapitalAccount" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_GeneralPartnersCapitalAccount" xml:lang="en-US">General Partners&#39; Capital Account</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_GeneralPartnersCapitalAccount" xml:lang="en-US">General Partner</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralPartnersCapitalAccount" xlink:to="lab_us-gaap_GeneralPartnersCapitalAccount" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LimitedPartnersCapitalAccount" xlink:label="loc_us-gaap_LimitedPartnersCapitalAccount" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LimitedPartnersCapitalAccount" xml:lang="en-US">Limited Partners&#39; Capital Account</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_LimitedPartnersCapitalAccount" xml:lang="en-US">Limited Partners</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccount" xlink:to="lab_us-gaap_LimitedPartnersCapitalAccount" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PartnersCapital" xlink:label="loc_us-gaap_PartnersCapital" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PartnersCapital" xml:lang="en-US">Partners&#39; Capital</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_PartnersCapital" xml:lang="en-US">Total Partners&#39; Capital</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_us-gaap_PartnersCapital" xml:lang="en-US">Balances</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_us-gaap_PartnersCapital" xml:lang="en-US">Balances</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnersCapital" xlink:to="lab_us-gaap_PartnersCapital" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xml:lang="en-US">Liabilities and Equity</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xml:lang="en-US">Total liabilities and partners&#39; capital</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding" xlink:label="loc_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding" xml:lang="en-US">Limited Partners&#39; Capital Account, Units Outstanding</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding" xml:lang="en-US">Limited Partners&#39; shares outstanding</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding" xlink:to="lab_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_NetAssetValuePerUnit" xlink:label="loc_bno_NetAssetValuePerUnit" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_NetAssetValuePerUnit" 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="lab_bno_NetAssetValuePerUnit" xml:lang="en-US">Net asset value per share</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_bno_NetAssetValuePerUnit" xml:lang="en-US">Net asset value per unit</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_bno_NetAssetValuePerUnit" xml:lang="en-US">Net asset value, beginning of period</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_bno_NetAssetValuePerUnit" xml:lang="en-US">Net asset value, end of period</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_NetAssetValuePerUnit" xml:lang="en-US">Net asset value per unit.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_NetAssetValuePerUnit" xlink:to="lab_bno_NetAssetValuePerUnit" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_MarketValuePerUnit" xlink:label="loc_bno_MarketValuePerUnit" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_MarketValuePerUnit" xml:lang="en-US">Market Value Per Unit</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_MarketValuePerUnit" xml:lang="en-US">Market value per share</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_MarketValuePerUnit" xml:lang="en-US">Market value per unit.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_MarketValuePerUnit" xlink:to="lab_bno_MarketValuePerUnit" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xml:lang="en-US">Organization, Consolidation and Presentation Of Financial Statements [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="loc_us-gaap_InvestmentTypeAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_InvestmentTypeAxis" xml:lang="en-US">Investment Type [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentTypeAxis" xlink:to="lab_us-gaap_InvestmentTypeAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_InvestmentTypeCategorizationMember" xml:lang="en-US">Investment Type Categorization [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember" xlink:to="lab_us-gaap_InvestmentTypeCategorizationMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentGeographicRegionAxis" xlink:label="loc_invest_InvestmentGeographicRegionAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentGeographicRegionAxis" xml:lang="en-US">Investment Geographic Region [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentGeographicRegionAxis" xlink:to="lab_invest_InvestmentGeographicRegionAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentGeographicRegionDomain" xlink:label="loc_invest_InvestmentGeographicRegionDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentGeographicRegionDomain" xml:lang="en-US">Investment Geographic Region [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentGeographicRegionDomain" xlink:to="lab_invest_InvestmentGeographicRegionDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd#country_US" xlink:label="loc_country_US" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_country_US" xml:lang="en-US">United States [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_country_US" xml:lang="en-US">United States [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_US" xlink:to="lab_country_US" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentSecuritiesSeriesAxis" xlink:label="loc_invest_InvestmentSecuritiesSeriesAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentSecuritiesSeriesAxis" xml:lang="en-US">Investment Securities Series [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentSecuritiesSeriesAxis" xlink:to="lab_invest_InvestmentSecuritiesSeriesAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentSecuritiesSeriesDomain" xlink:label="loc_invest_InvestmentSecuritiesSeriesDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentSecuritiesSeriesDomain" xml:lang="en-US">Investment Securities Series [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentSecuritiesSeriesDomain" xlink:to="lab_invest_InvestmentSecuritiesSeriesDomain" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_IceBrentCrudeOilFuturesCoOneMember" xlink:label="loc_bno_IceBrentCrudeOilFuturesCoOneMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_IceBrentCrudeOilFuturesCoOneMember" xml:lang="en-US">Ice Brent Crude Oil Futures Co One [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_IceBrentCrudeOilFuturesCoOneMember" xml:lang="en-US">ICE Brent Crude Oil Futures CO May 2014 contracts, expiring April 2014 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_IceBrentCrudeOilFuturesCoOneMember" xlink:to="lab_bno_IceBrentCrudeOilFuturesCoOneMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PeriodAxis" xlink:label="loc_bno_PeriodAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PeriodAxis" xml:lang="en-US">Period [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PeriodAxis" xlink:to="lab_bno_PeriodAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentContractCounterpartyDomain" xlink:label="loc_invest_InvestmentContractCounterpartyDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentContractCounterpartyDomain" xml:lang="en-US">Investment Contract Counterparty [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentContractCounterpartyDomain" xlink:to="lab_invest_InvestmentContractCounterpartyDomain" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PriorToFebruaryTwentyNineTwoThousandTwelveMember" xlink:label="loc_bno_PriorToFebruaryTwentyNineTwoThousandTwelveMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PriorToFebruaryTwentyNineTwoThousandTwelveMember" xml:lang="en-US">Prior To February Twenty Nine Two Thousand Twelve [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PriorToFebruaryTwentyNineTwoThousandTwelveMember" xml:lang="en-US">Prior to July 1, 2011 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PriorToFebruaryTwentyNineTwoThousandTwelveMember" xlink:to="lab_bno_PriorToFebruaryTwentyNineTwoThousandTwelveMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RangeAxis" xml:lang="en-US">Range [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RangeAxis" xlink:to="lab_us-gaap_RangeAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RangeMember" xml:lang="en-US">Range [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RangeMember" xlink:to="lab_us-gaap_RangeMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_MaximumMember" xml:lang="en-US">Maximum [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MaximumMember" xlink:to="lab_us-gaap_MaximumMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_MinimumMember" xml:lang="en-US">Minimum [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MinimumMember" xlink:to="lab_us-gaap_MinimumMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentOwnedBalanceContracts" xlink:label="loc_us-gaap_InvestmentOwnedBalanceContracts" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_InvestmentOwnedBalanceContracts" xml:lang="en-US">Investment Owned, Balance, Contracts</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_InvestmentOwnedBalanceContracts" xml:lang="en-US">Number of Contracts</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentOwnedBalanceContracts" xlink:to="lab_us-gaap_InvestmentOwnedBalanceContracts" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_UnitsIssuedDuringPeriodToAuthorizedPurchasersThroughDistributors" xlink:label="loc_bno_UnitsIssuedDuringPeriodToAuthorizedPurchasersThroughDistributors" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_UnitsIssuedDuringPeriodToAuthorizedPurchasersThroughDistributors" xml:lang="en-US">Units Issued During Period To Authorized Purchasers Through Distributors</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_UnitsIssuedDuringPeriodToAuthorizedPurchasersThroughDistributors" xml:lang="en-US">Units Issued During Period To Authorized Purchasers Through Distributors</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_UnitsIssuedDuringPeriodToAuthorizedPurchasersThroughDistributors" xml:lang="en-US">Units issuers during peroid to authoeize purchasers of face-amount certificates and registered investment companies.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_UnitsIssuedDuringPeriodToAuthorizedPurchasersThroughDistributors" xlink:to="lab_bno_UnitsIssuedDuringPeriodToAuthorizedPurchasersThroughDistributors" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_TransactionFee" xlink:label="loc_bno_TransactionFee" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_TransactionFee" xml:lang="en-US">Transaction Fee</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_TransactionFee" xml:lang="en-US">Transaction Fee</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_TransactionFee" xml:lang="en-US">A description of what the Transaction fee during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_TransactionFee" xlink:to="lab_bno_TransactionFee" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_InitiallyRegisteredUnitsOfEntityWithSec" xlink:label="loc_bno_InitiallyRegisteredUnitsOfEntityWithSec" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_InitiallyRegisteredUnitsOfEntityWithSec" xml:lang="en-US">Initially Registered Units Of Entity With Sec</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_InitiallyRegisteredUnitsOfEntityWithSec" xml:lang="en-US">Initially Registered Units Of Entity With Sec</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_InitiallyRegisteredUnitsOfEntityWithSec" xml:lang="en-US">Initially Registered Units of Entity With SEC based on during period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_InitiallyRegisteredUnitsOfEntityWithSec" xlink:to="lab_bno_InitiallyRegisteredUnitsOfEntityWithSec" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_InitialStockUnitsIssued" xlink:label="loc_bno_InitialStockUnitsIssued" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_InitialStockUnitsIssued" xml:lang="en-US">Initial Stock Units Issued</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_InitialStockUnitsIssued" xml:lang="en-US">Initial stock units issued</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_InitialStockUnitsIssued" xml:lang="en-US">Total number of initial units of an entity that have been issued so reported as of the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_InitialStockUnitsIssued" xlink:to="lab_bno_InitialStockUnitsIssued" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_InitialStockUnitsOutstanding" xlink:label="loc_bno_InitialStockUnitsOutstanding" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_InitialStockUnitsOutstanding" xml:lang="en-US">Initial Stock Units Outstanding</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_InitialStockUnitsOutstanding" xml:lang="en-US">Initial Stock Units Outstanding</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_InitialStockUnitsOutstanding" xml:lang="en-US">Total number of initial units of an entity that have been outstanding so reported as of the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_InitialStockUnitsOutstanding" xlink:to="lab_bno_InitialStockUnitsOutstanding" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_InitialUnitsValueIssued" xlink:label="loc_bno_InitialUnitsValueIssued" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_InitialUnitsValueIssued" xml:lang="en-US">Initial Units Value, Issued</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_InitialUnitsValueIssued" xml:lang="en-US">Initial Units Value, Issued</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_InitialUnitsValueIssued" xml:lang="en-US">Represents the initial value issued during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_InitialUnitsValueIssued" xlink:to="lab_bno_InitialUnitsValueIssued" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_TotalUnitsRegisteredOfEntity" xlink:label="loc_bno_TotalUnitsRegisteredOfEntity" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_TotalUnitsRegisteredOfEntity" xml:lang="en-US">Total Units Registered Of Entity</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_TotalUnitsRegisteredOfEntity" xml:lang="en-US">Total Units Registered Of Entity</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_TotalUnitsRegisteredOfEntity" xml:lang="en-US">The total units of the entity registered under the Securities and Exchange commission reported as of the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_TotalUnitsRegisteredOfEntity" xlink:to="lab_bno_TotalUnitsRegisteredOfEntity" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentSecuritiesClassAxis" xlink:label="loc_invest_InvestmentSecuritiesClassAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentSecuritiesClassAxis" xml:lang="en-US">Investment Securities Class [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentSecuritiesClassAxis" xlink:to="lab_invest_InvestmentSecuritiesClassAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentSecuritiesClassDomain" xlink:label="loc_invest_InvestmentSecuritiesClassDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentSecuritiesClassDomain" xml:lang="en-US">Investment Securities Class [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentSecuritiesClassDomain" xlink:to="lab_invest_InvestmentSecuritiesClassDomain" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_RedemptionBasketsMember" xlink:label="loc_bno_RedemptionBasketsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_RedemptionBasketsMember" xml:lang="en-US">Redemption Baskets [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_RedemptionBasketsMember" xlink:to="lab_bno_RedemptionBasketsMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_NumberRofUnitsPerBaskets" xlink:label="loc_bno_NumberRofUnitsPerBaskets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_NumberRofUnitsPerBaskets" xml:lang="en-US">Number Rof Units Per Baskets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_NumberRofUnitsPerBaskets" xml:lang="en-US">Number rof Units Per Baskets.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_NumberRofUnitsPerBaskets" xlink:to="lab_bno_NumberRofUnitsPerBaskets" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfManagementFeeInAverageDailyTotalNetAssets" xlink:label="loc_bno_PercentageOfManagementFeeInAverageDailyTotalNetAssets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfManagementFeeInAverageDailyTotalNetAssets" xml:lang="en-US">Percentage Of Management Fee In Average Daily Total Net Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfManagementFeeInAverageDailyTotalNetAssets" xml:lang="en-US">Percentage Of Management Fee In Average Daily Total Net Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfManagementFeeInAverageDailyTotalNetAssets" xml:lang="en-US">Percentage of Management Fee In Average Daily Total Net Assets.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfManagementFeeInAverageDailyTotalNetAssets" xlink:to="lab_bno_PercentageOfManagementFeeInAverageDailyTotalNetAssets" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_EstimatedDirectorsFeesAndExpenses" xlink:label="loc_bno_EstimatedDirectorsFeesAndExpenses" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_EstimatedDirectorsFeesAndExpenses" xml:lang="en-US">Estimated Directors Fees and Expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_EstimatedDirectorsFeesAndExpenses" xml:lang="en-US">Estimated Directors Fees and Expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_EstimatedDirectorsFeesAndExpenses" xml:lang="en-US">Estimated Directors Fees And Expenses.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_EstimatedDirectorsFeesAndExpenses" xlink:to="lab_bno_EstimatedDirectorsFeesAndExpenses" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_EstimatedInvestorTaxReportingCost" xlink:label="loc_bno_EstimatedInvestorTaxReportingCost" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_EstimatedInvestorTaxReportingCost" xml:lang="en-US">Estimated Investor Tax Reporting Cost</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_EstimatedInvestorTaxReportingCost" xml:lang="en-US">Estimated Investor Tax Reporting Cost</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_EstimatedInvestorTaxReportingCost" xml:lang="en-US">Estimated Investor Tax Reporting Cost.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_EstimatedInvestorTaxReportingCost" xlink:to="lab_bno_EstimatedInvestorTaxReportingCost" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfFeesAndOtherWaiversExpense" xlink:label="loc_bno_PercentageOfFeesAndOtherWaiversExpense" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfFeesAndOtherWaiversExpense" xml:lang="en-US">Percentage Of Fees and Other Waivers Expense</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfFeesAndOtherWaiversExpense" xml:lang="en-US">Percentage Of Fees and Other Waivers Expense</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfFeesAndOtherWaiversExpense" xml:lang="en-US">The percentage of fees and other waivers expense of maximum base points .</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfFeesAndOtherWaiversExpense" xlink:to="lab_bno_PercentageOfFeesAndOtherWaiversExpense" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_ExpensesWriteOff" xlink:label="loc_bno_ExpensesWriteOff" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_ExpensesWriteOff" xml:lang="en-US">Expenses Write Off</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_ExpensesWriteOff" xml:lang="en-US">Expenses Write Off</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_ExpensesWriteOff" xml:lang="en-US">expenses write off</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_ExpensesWriteOff" xlink:to="lab_bno_ExpensesWriteOff" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TypeOfArrangementAxis" xlink:label="loc_us-gaap_TypeOfArrangementAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_TypeOfArrangementAxis" xml:lang="en-US">Type Of Arrangement and Non-Arrangement Transactions [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TypeOfArrangementAxis" xlink:to="lab_us-gaap_TypeOfArrangementAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ArrangementsAndNonarrangementTransactionsMember" xml:lang="en-US">Arrangements and Non-Arrangement Transactions [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:to="lab_us-gaap_ArrangementsAndNonarrangementTransactionsMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_MarketingAgreementMember" xlink:label="loc_bno_MarketingAgreementMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_MarketingAgreementMember" xml:lang="en-US">Marketing Agreement [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_MarketingAgreementMember" xml:lang="en-US">Marketing Agreement [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_MarketingAgreementMember" xlink:to="lab_bno_MarketingAgreementMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIdentifierSchemeAxis" xlink:label="loc_invest_InvestmentIdentifierSchemeAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentIdentifierSchemeAxis" xml:lang="en-US">Investment Identifier Scheme [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentIdentifierSchemeAxis" xlink:to="lab_invest_InvestmentIdentifierSchemeAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIdentifierSchemeDomain" xlink:label="loc_invest_InvestmentIdentifierSchemeDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentIdentifierSchemeDomain" xml:lang="en-US">Investment Identifier Scheme [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentIdentifierSchemeDomain" xlink:to="lab_invest_InvestmentIdentifierSchemeDomain" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_GroupFourMember" xlink:label="loc_bno_GroupFourMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_GroupFourMember" xml:lang="en-US">Group Four [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_GroupFourMember" xml:lang="en-US">BNO&#39;s assets up to $3 billion [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_GroupFourMember" xlink:to="lab_bno_GroupFourMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_GroupFiveMember" xlink:label="loc_bno_GroupFiveMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_GroupFiveMember" xml:lang="en-US">Group Five [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_GroupFiveMember" xml:lang="en-US">BNO&#39;s assets in excess of $3 billion [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_GroupFiveMember" xlink:to="lab_bno_GroupFiveMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_GroupSixMember" xlink:label="loc_bno_GroupSixMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_GroupSixMember" xml:lang="en-US">Group Six [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_bno_GroupSixMember" xml:lang="en-US">First $500 Million Of The Related Public Funds&#8217;, Combined Net Assets [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_GroupSixMember" xlink:to="lab_bno_GroupSixMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_GroupSevenMember" xlink:label="loc_bno_GroupSevenMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_GroupSevenMember" xml:lang="en-US">Group Seven [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_GroupSevenMember" xml:lang="en-US">Related Public Funds&#8217; Combined Net Assets Greater Than $500 Million But Less Than $1 Billion [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_GroupSevenMember" xlink:to="lab_bno_GroupSevenMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_GroupEightMember" xlink:label="loc_bno_GroupEightMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_GroupEightMember" xml:lang="en-US">Group Eight [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_GroupEightMember" xml:lang="en-US">Related Public Funds&#8217; Combined Net Assets Exceed $1 Billion [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_GroupEightMember" xlink:to="lab_bno_GroupEightMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_AnnualFeePayableForTransferAgencyServices" xlink:label="loc_bno_AnnualFeePayableForTransferAgencyServices" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_AnnualFeePayableForTransferAgencyServices" xml:lang="en-US">Annual Fee Payable For Transfer Agency Services</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_AnnualFeePayableForTransferAgencyServices" xml:lang="en-US">Annual Fee Payable For Transfer Agency Services</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_AnnualFeePayableForTransferAgencyServices" xml:lang="en-US">The annual fee payable for transfer agency services reported during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_AnnualFeePayableForTransferAgencyServices" xlink:to="lab_bno_AnnualFeePayableForTransferAgencyServices" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FloorBrokerageExchangeAndClearanceFees" xlink:label="loc_us-gaap_FloorBrokerageExchangeAndClearanceFees" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FloorBrokerageExchangeAndClearanceFees" xml:lang="en-US">Floor Brokerage, Exchange and Clearance Fees</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_FloorBrokerageExchangeAndClearanceFees" xml:lang="en-US">Brokerage commissions</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FloorBrokerageExchangeAndClearanceFees" xlink:to="lab_us-gaap_FloorBrokerageExchangeAndClearanceFees" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_RebalancingCost" xlink:label="loc_bno_RebalancingCost" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_RebalancingCost" xml:lang="en-US">Rebalancing Cost</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_RebalancingCost" xml:lang="en-US">Rebalancing Cost</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_RebalancingCost" xml:lang="en-US">The amount attributable to commission accrued as a result of rebalancing costs during the reporting period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_RebalancingCost" xlink:to="lab_bno_RebalancingCost" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfRebalancingCost" xlink:label="loc_bno_PercentageOfRebalancingCost" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfRebalancingCost" xml:lang="en-US">Percentage Of Rebalancing Cost</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfRebalancingCost" xml:lang="en-US">Percentage of rebalancing cost</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfRebalancingCost" xml:lang="en-US">The percentage of rebalancing cost during the reporting period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfRebalancingCost" xlink:to="lab_bno_PercentageOfRebalancingCost" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_CreationAndRedemptionActivityCosts" xlink:label="loc_bno_CreationAndRedemptionActivityCosts" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_CreationAndRedemptionActivityCosts" xml:lang="en-US">Creation and Redemption Activity Costs</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_CreationAndRedemptionActivityCosts" xml:lang="en-US">Creation and Redemption Activity Costs</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_CreationAndRedemptionActivityCosts" xml:lang="en-US">The amount of commission accrued as a result of trades necessitated by creation and redemption activity.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_CreationAndRedemptionActivityCosts" xlink:to="lab_bno_CreationAndRedemptionActivityCosts" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfCreationAndRedemptionActivityCosts" xlink:label="loc_bno_PercentageOfCreationAndRedemptionActivityCosts" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfCreationAndRedemptionActivityCosts" xml:lang="en-US">Percentage Of Creation And Redemption Activity Costs</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfCreationAndRedemptionActivityCosts" xml:lang="en-US">Percentage of creation and redemption activity costs</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfCreationAndRedemptionActivityCosts" xml:lang="en-US">The percentage of creation and redemption activity costs during the reporting period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfCreationAndRedemptionActivityCosts" xlink:to="lab_bno_PercentageOfCreationAndRedemptionActivityCosts" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfAverageDailyAssetsNetTotal" xlink:label="loc_bno_PercentageOfAverageDailyAssetsNetTotal" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfAverageDailyAssetsNetTotal" xml:lang="en-US">Percentage Of Average Daily Assets Net Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfAverageDailyAssetsNetTotal" xml:lang="en-US">Percentage Of Average Daily Assets Net Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfAverageDailyAssetsNetTotal" xml:lang="en-US">The percentage of average daily total net assets during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfAverageDailyAssetsNetTotal" xlink:to="lab_bno_PercentageOfAverageDailyAssetsNetTotal" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_BaseFeePercentage" xlink:label="loc_bno_BaseFeePercentage" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_BaseFeePercentage" xml:lang="en-US">Base Fee Percentage</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_BaseFeePercentage" xml:lang="en-US">Fee percentage</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_BaseFeePercentage" xml:lang="en-US">Base Fee Percentage</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_BaseFeePercentage" xlink:to="lab_bno_BaseFeePercentage" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_BasisAmountForFeePercentage" xlink:label="loc_bno_BasisAmountForFeePercentage" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_BasisAmountForFeePercentage" xml:lang="en-US">Basis Amount For Fee Percentage</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_BasisAmountForFeePercentage" xml:lang="en-US">Base amount for determining fee percentage</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_BasisAmountForFeePercentage" xml:lang="en-US">Basis Amount for Fee Percentage</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_BasisAmountForFeePercentage" xlink:to="lab_bno_BasisAmountForFeePercentage" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MoneyMarketFundsAtCarryingValue" xlink:label="loc_us-gaap_MoneyMarketFundsAtCarryingValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_MoneyMarketFundsAtCarryingValue" xml:lang="en-US">Money Market Funds, At Carrying Value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_MoneyMarketFundsAtCarryingValue" xml:lang="en-US">Money Market Funds, at Carrying Value</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MoneyMarketFundsAtCarryingValue" xlink:to="lab_us-gaap_MoneyMarketFundsAtCarryingValue" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_CashDepositsAndInvestmentsInTreasuries" xlink:label="loc_bno_CashDepositsAndInvestmentsInTreasuries" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_CashDepositsAndInvestmentsInTreasuries" xml:lang="en-US">Cash Deposits and Investments In Treasuries</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_CashDepositsAndInvestmentsInTreasuries" xml:lang="en-US">Cash Deposits and Investments In Treasuries</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_CashDepositsAndInvestmentsInTreasuries" xml:lang="en-US">The cash deposits and investments made in treasuries which are held with custodian and futures commission merchant reported as of the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_CashDepositsAndInvestmentsInTreasuries" xlink:to="lab_bno_CashDepositsAndInvestmentsInTreasuries" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_OperatingPerformancePerUnitAbstract" xlink:label="loc_bno_OperatingPerformancePerUnitAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_OperatingPerformancePerUnitAbstract" xml:lang="en-US">Operating Performance Per Unit Abstract</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_OperatingPerformancePerUnitAbstract" xml:lang="en-US">Per Unit Operating Performance:</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_OperatingPerformancePerUnitAbstract" xml:lang="en-US">expenses write off</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_OperatingPerformancePerUnitAbstract" xlink:to="lab_bno_OperatingPerformancePerUnitAbstract" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_TotalIncomePerUnit" xlink:label="loc_bno_TotalIncomePerUnit" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_TotalIncomePerUnit" xml:lang="en-US">Total Income Per Unit</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_TotalIncomePerUnit" xml:lang="en-US">Total income (loss)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_TotalIncomePerUnit" xml:lang="en-US">Representing per share value of total income.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_TotalIncomePerUnit" xlink:to="lab_bno_TotalIncomePerUnit" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_TotalExpensePerUnit" xlink:label="loc_bno_TotalExpensePerUnit" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_TotalExpensePerUnit" xml:lang="en-US">Total Expense Per Unit</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_TotalExpensePerUnit" xml:lang="en-US">Net expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_TotalExpensePerUnit" xml:lang="en-US">Representing per share value of total expense.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_TotalExpensePerUnit" xlink:to="lab_bno_TotalExpensePerUnit" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_NetIncreaseDecreaseInNetAssetValue" xlink:label="loc_bno_NetIncreaseDecreaseInNetAssetValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_NetIncreaseDecreaseInNetAssetValue" xml:lang="en-US">Net Increase Decrease In Net Asset Value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_bno_NetIncreaseDecreaseInNetAssetValue" xml:lang="en-US">Net increase (decrease) in net asset value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_NetIncreaseDecreaseInNetAssetValue" xml:lang="en-US">Representing per share value net increase decrease in net asset.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_NetIncreaseDecreaseInNetAssetValue" xlink:to="lab_bno_NetIncreaseDecreaseInNetAssetValue" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfTotalReturn" xlink:label="loc_bno_PercentageOfTotalReturn" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfTotalReturn" xml:lang="en-US">Percentage Of Total Return</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfTotalReturn" xml:lang="en-US">Total Return</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfTotalReturn" xml:lang="en-US">Representing percentage of total return.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfTotalReturn" xlink:to="lab_bno_PercentageOfTotalReturn" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfRatiosToAverageNetAssetsAbstract" xlink:label="loc_bno_PercentageOfRatiosToAverageNetAssetsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfRatiosToAverageNetAssetsAbstract" xml:lang="en-US">Percentage Of Ratios To Average Net Assets [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfRatiosToAverageNetAssetsAbstract" xml:lang="en-US">Ratios to Average Net Assets</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfRatiosToAverageNetAssetsAbstract" xlink:to="lab_bno_PercentageOfRatiosToAverageNetAssetsAbstract" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfTotalIncomeOnNetAssets" xlink:label="loc_bno_PercentageOfTotalIncomeOnNetAssets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfTotalIncomeOnNetAssets" xml:lang="en-US">Percentage Of Total Income On Net Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfTotalIncomeOnNetAssets" xml:lang="en-US">Total income (loss)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfTotalIncomeOnNetAssets" xml:lang="en-US">Representing percentage value of total income on net assets.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfTotalIncomeOnNetAssets" xlink:to="lab_bno_PercentageOfTotalIncomeOnNetAssets" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfManagementFeesOnNetAssets" xlink:label="loc_bno_PercentageOfManagementFeesOnNetAssets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfManagementFeesOnNetAssets" xml:lang="en-US">Percentage Of Management Fees On Net Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfManagementFeesOnNetAssets" xml:lang="en-US">Management fees</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfManagementFeesOnNetAssets" xml:lang="en-US">Representing percentage value of management fees on net assets.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfManagementFeesOnNetAssets" xlink:to="lab_bno_PercentageOfManagementFeesOnNetAssets" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfTotalExpensesExcludingManagementFeesOnNetAssets" xlink:label="loc_bno_PercentageOfTotalExpensesExcludingManagementFeesOnNetAssets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfTotalExpensesExcludingManagementFeesOnNetAssets" xml:lang="en-US">Percentage Of Total Expenses Excluding Management Fees On Net Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfTotalExpensesExcludingManagementFeesOnNetAssets" xml:lang="en-US">Total expenses excluding management fees</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfTotalExpensesExcludingManagementFeesOnNetAssets" xml:lang="en-US">Representing percentage value of total expenses excluding management fees on net assets.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfTotalExpensesExcludingManagementFeesOnNetAssets" xlink:to="lab_bno_PercentageOfTotalExpensesExcludingManagementFeesOnNetAssets" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfExpensesWaivedOnNetAssets" xlink:label="loc_bno_PercentageOfExpensesWaivedOnNetAssets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfExpensesWaivedOnNetAssets" xml:lang="en-US">Percentage Of Expenses Waived On Net Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfExpensesWaivedOnNetAssets" xml:lang="en-US">Expenses waived</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfExpensesWaivedOnNetAssets" xml:lang="en-US">Representing percentage value of total expenses waived on net assets.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfExpensesWaivedOnNetAssets" xlink:to="lab_bno_PercentageOfExpensesWaivedOnNetAssets" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfNetExpensesExcludingManagementFeeOnNetAssets" xlink:label="loc_bno_PercentageOfNetExpensesExcludingManagementFeeOnNetAssets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfNetExpensesExcludingManagementFeeOnNetAssets" xml:lang="en-US">Percentage Of Net Expenses Excluding Management Fee On Net Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfNetExpensesExcludingManagementFeeOnNetAssets" xml:lang="en-US">Net expenses excluding management fees</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfNetExpensesExcludingManagementFeeOnNetAssets" xml:lang="en-US">Representing percentage value of net expenses excluding management fees on net assets.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfNetExpensesExcludingManagementFeeOnNetAssets" xlink:to="lab_bno_PercentageOfNetExpensesExcludingManagementFeeOnNetAssets" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfNetIncomeOnNetAssets" xlink:label="loc_bno_PercentageOfNetIncomeOnNetAssets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfNetIncomeOnNetAssets" xml:lang="en-US">Percentage Of Net Income On Net Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfNetIncomeOnNetAssets" xml:lang="en-US">Net income (loss)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfNetIncomeOnNetAssets" xml:lang="en-US">Representing percentage value of net income on net assets.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfNetIncomeOnNetAssets" xlink:to="lab_bno_PercentageOfNetIncomeOnNetAssets" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" xml:lang="en-US">Fair Value, Hierarchy [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xml:lang="en-US">Fair Value, Measurements, Fair Value Hierarchy [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueInputsLevel1Member" xml:lang="en-US">Fair Value, Inputs, Level 1 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel1Member" xlink:to="lab_us-gaap_FairValueInputsLevel1Member" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueInputsLevel2Member" xml:lang="en-US">Fair Value, Inputs, Level 2 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel2Member" xlink:to="lab_us-gaap_FairValueInputsLevel2Member" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueInputsLevel3Member" xml:lang="en-US">Fair Value, Inputs, Level 3 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel3Member" xlink:to="lab_us-gaap_FairValueInputsLevel3Member" />

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    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_ExchangeTradedFuturesContractsAbstract" xlink:label="loc_bno_ExchangeTradedFuturesContractsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_ExchangeTradedFuturesContractsAbstract" xml:lang="en-US">Exchange Traded Futures Contracts [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_ExchangeTradedFuturesContractsAbstract" xml:lang="en-US">Exchange-Traded Futures Contracts Foreign Contracts</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsType" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsType" />

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DescriptionOfLocationOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsOnBalanceSheet" xlink:label="loc_us-gaap_DescriptionOfLocationOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsOnBalanceSheet" />

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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DescriptionOfLocationOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsOnBalanceSheet" xml:lang="en-US">Condensed Statements of Financial Condition Location</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DerivativeInstrumentRiskAxis" xml:lang="en-US">Derivative Instrument Risk [Axis]</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DerivativeContractTypeDomain" xml:lang="en-US">Derivative Contract Type [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeContractTypeDomain" xlink:to="lab_us-gaap_DerivativeContractTypeDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommodityContractMember" xlink:label="loc_us-gaap_CommodityContractMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CommodityContractMember" xml:lang="en-US">Commodity Contract [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommodityContractMember" xlink:to="lab_us-gaap_CommodityContractMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DescriptionOfLocationOfGainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsInFinancialStatements" xlink:label="loc_us-gaap_DescriptionOfLocationOfGainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsInFinancialStatements" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DescriptionOfLocationOfGainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsInFinancialStatements" xml:lang="en-US">Description Of Location Of Gain (Loss) On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments In Financial Statements</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DescriptionOfLocationOfGainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsInFinancialStatements" xml:lang="en-US">Location of Gain or (Loss) on Derivatives Recognized in Income</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DerivativeGainLossOnDerivativeNet" xml:lang="en-US">Derivative, Gain (Loss) on Derivative, Net, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DerivativeGainLossOnDerivativeNet" xml:lang="en-US">Realized Gain or (Loss) on Derivatives Recognized in Income</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeGainLossOnDerivativeNet" xlink:to="lab_us-gaap_DerivativeGainLossOnDerivativeNet" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UnrealizedGainLossOnDerivatives" xlink:label="loc_us-gaap_UnrealizedGainLossOnDerivatives" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_UnrealizedGainLossOnDerivatives" xml:lang="en-US">Unrealized Gain (Loss) On Derivatives</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_UnrealizedGainLossOnDerivatives" xml:lang="en-US">Change in Unrealized Gain or (Loss) on Derivatives Recognized in Income</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnrealizedGainLossOnDerivatives" xlink:to="lab_us-gaap_UnrealizedGainLossOnDerivatives" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsAbstract" xlink:label="loc_us-gaap_ScheduleOfInvestmentsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ScheduleOfInvestmentsAbstract" xml:lang="en-US">Schedule Of Investments [Abstract]</label>

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    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_OpenFuturesContractsLongMember" xlink:label="loc_bno_OpenFuturesContractsLongMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_OpenFuturesContractsLongMember" xml:lang="en-US">Open Futures Contracts Long [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_OpenFuturesContractsLongMember" xml:lang="en-US">Open Futures Contracts - Long [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_OpenFuturesContractsLongMember" xlink:to="lab_bno_OpenFuturesContractsLongMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentAxis" xlink:label="loc_invest_InvestmentAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentAxis" xml:lang="en-US">Investment [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentAxis" xlink:to="lab_invest_InvestmentAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentDomain" xlink:label="loc_invest_InvestmentDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_invest_InvestmentDomain" xml:lang="en-US">Investment [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_InvestmentDomain" xlink:to="lab_invest_InvestmentDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CashEquivalentsMember" xlink:label="loc_us-gaap_CashEquivalentsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CashEquivalentsMember" xml:lang="en-US">Cash Equivalents [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CashEquivalentsMember" xml:lang="en-US">Cash Equivalents [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashEquivalentsMember" xlink:to="lab_us-gaap_CashEquivalentsMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_USTreasurySecuritiesMember" xlink:label="loc_us-gaap_USTreasurySecuritiesMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_USTreasurySecuritiesMember" xml:lang="en-US">Us Treasury Securities [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_USTreasurySecuritiesMember" xml:lang="en-US">US Treasury Securities [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_USTreasurySecuritiesMember" xlink:to="lab_us-gaap_USTreasurySecuritiesMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="loc_us-gaap_MoneyMarketFundsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_MoneyMarketFundsMember" xml:lang="en-US">Money Market Funds [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_MoneyMarketFundsMember" xml:lang="en-US">Money Market Funds [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MoneyMarketFundsMember" xlink:to="lab_us-gaap_MoneyMarketFundsMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_USTreasuryBillSecuritiesMember" xlink:label="loc_us-gaap_USTreasuryBillSecuritiesMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_USTreasuryBillSecuritiesMember" xml:lang="en-US">Us Treasury Bill Securities [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_USTreasuryBillSecuritiesMember" xml:lang="en-US">U.S. Treasury Bill, 0.07%, 4/24/2014 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_USTreasuryBillSecuritiesMember" xlink:to="lab_us-gaap_USTreasuryBillSecuritiesMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_FidelityInstitutionalGovernmentPortfolioMember" xlink:label="loc_bno_FidelityInstitutionalGovernmentPortfolioMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_FidelityInstitutionalGovernmentPortfolioMember" xml:lang="en-US">Fidelity Institutional Government Portfolio [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_FidelityInstitutionalGovernmentPortfolioMember" xml:lang="en-US">Fidelity Institutional Government Portfolio - Class I [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_FidelityInstitutionalGovernmentPortfolioMember" xml:lang="en-US">Fidelity Institutional Government Portfolio [Member].</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_FidelityInstitutionalGovernmentPortfolioMember" xlink:to="lab_bno_FidelityInstitutionalGovernmentPortfolioMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_GoldmanSachsFinancialSquareFundsMember" xlink:label="loc_bno_GoldmanSachsFinancialSquareFundsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_GoldmanSachsFinancialSquareFundsMember" xml:lang="en-US">Goldman Sachs Financial Square Funds [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_GoldmanSachsFinancialSquareFundsMember" xml:lang="en-US">Goldman Sachs Financial Square Funds - Government Fund - Class FS [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_GoldmanSachsFinancialSquareFundsMember" xml:lang="en-US">Goldman Sachs Financial Square Funds [Member].</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_GoldmanSachsFinancialSquareFundsMember" xlink:to="lab_bno_GoldmanSachsFinancialSquareFundsMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_GoldmanSachsFinancialSquareFundsOneMember" xlink:label="loc_bno_GoldmanSachsFinancialSquareFundsOneMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_GoldmanSachsFinancialSquareFundsOneMember" xml:lang="en-US">Goldman Sachs Financial Square Funds One [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_GoldmanSachsFinancialSquareFundsOneMember" xml:lang="en-US">Goldman Sachs Financial Square Funds - Government Fund - Class SL [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_GoldmanSachsFinancialSquareFundsOneMember" xlink:to="lab_bno_GoldmanSachsFinancialSquareFundsOneMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_MorganStanleyInstitutionalLiquidityFundMember" xlink:label="loc_bno_MorganStanleyInstitutionalLiquidityFundMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_MorganStanleyInstitutionalLiquidityFundMember" xml:lang="en-US">Morgan Stanley Institutional Liquidity Fund [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_MorganStanleyInstitutionalLiquidityFundMember" xml:lang="en-US">Morgan Stanley Institutional Liquidity Fund - Government Portfolio [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_MorganStanleyInstitutionalLiquidityFundMember" xml:lang="en-US">Morgan Stanley Institutional Liquidity Fund [Member].</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_MorganStanleyInstitutionalLiquidityFundMember" xlink:to="lab_bno_MorganStanleyInstitutionalLiquidityFundMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_WellsFargoAdvantageGovernmentMoneyMarketFundClassIMember" xlink:label="loc_bno_WellsFargoAdvantageGovernmentMoneyMarketFundClassIMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_WellsFargoAdvantageGovernmentMoneyMarketFundClassIMember" xml:lang="en-US">Wells Fargo Advantage Government Money Market Fund - Class I [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_WellsFargoAdvantageGovernmentMoneyMarketFundClassIMember" xml:lang="en-US">Wells Fargo Advantage Government Money Market Fund - Class I [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_WellsFargoAdvantageGovernmentMoneyMarketFundClassIMember" xml:lang="en-US">Wells Fargo Advantage Government Money Market Fund - Class I</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_WellsFargoAdvantageGovernmentMoneyMarketFundClassIMember" xlink:to="lab_bno_WellsFargoAdvantageGovernmentMoneyMarketFundClassIMember" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_UnrealizedGainLossOnOpenCommodityFuturesAndClearedSwapContracts" xlink:label="loc_bno_UnrealizedGainLossOnOpenCommodityFuturesAndClearedSwapContracts" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_UnrealizedGainLossOnOpenCommodityFuturesAndClearedSwapContracts" xml:lang="en-US">Unrealized Gain Loss On Open Commodity Futures and Cleared Swap Contracts</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_UnrealizedGainLossOnOpenCommodityFuturesAndClearedSwapContracts" xml:lang="en-US">Unrealized Gain Loss On Open Commodity Contracts</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_UnrealizedGainLossOnOpenCommodityFuturesAndClearedSwapContracts" xml:lang="en-US">Unrealized gain (loss) on open commodity futures and cleared swap contracts.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_UnrealizedGainLossOnOpenCommodityFuturesAndClearedSwapContracts" xlink:to="lab_bno_UnrealizedGainLossOnOpenCommodityFuturesAndClearedSwapContracts" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PercentageOfPartnersCapital" xlink:label="loc_bno_PercentageOfPartnersCapital" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PercentageOfPartnersCapital" xml:lang="en-US">Percentage Of Partners Capital</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_PercentageOfPartnersCapital" xml:lang="en-US">% of Partners&#39; Capital</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PercentageOfPartnersCapital" xml:lang="en-US">Percentage of Partners Capital.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PercentageOfPartnersCapital" xlink:to="lab_bno_PercentageOfPartnersCapital" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:label="loc_us-gaap_InvestmentOwnedBalancePrincipalAmount" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_InvestmentOwnedBalancePrincipalAmount" 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="lab_us-gaap_InvestmentOwnedBalancePrincipalAmount" xml:lang="en-US">Principal Amount</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:to="lab_us-gaap_InvestmentOwnedBalancePrincipalAmount" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" xlink:label="loc_us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" 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/verboseLabel" xlink:label="lab_us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" xml:lang="en-US">Market Values</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" xlink:to="lab_us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_CondensedScheduleOfInvestmentsParentheticalAbstract" xlink:label="loc_bno_CondensedScheduleOfInvestmentsParentheticalAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_CondensedScheduleOfInvestmentsParentheticalAbstract" xml:lang="en-US">Condensed Schedule Of Investments Parenthetical [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_CondensedScheduleOfInvestmentsParentheticalAbstract" xlink:to="lab_bno_CondensedScheduleOfInvestmentsParentheticalAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US">Debt Instrument, Interest Rate, Stated Percentage</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US">Interest rate</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentOwnedSubjectToOptionExerciseDates" xlink:label="loc_us-gaap_InvestmentOwnedSubjectToOptionExerciseDates" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_InvestmentOwnedSubjectToOptionExerciseDates" xml:lang="en-US">Investment Owned, Subject To Option, Exercise Dates</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_InvestmentOwnedSubjectToOptionExerciseDates" xml:lang="en-US">Expiration date</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentOwnedSubjectToOptionExerciseDates" xlink:to="lab_us-gaap_InvestmentOwnedSubjectToOptionExerciseDates" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_CollateralAmountOnOpenFuturesContracts" xlink:label="loc_bno_CollateralAmountOnOpenFuturesContracts" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_CollateralAmountOnOpenFuturesContracts" xml:lang="en-US">Collateral Amount On Open Futures Contracts</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_CollateralAmountOnOpenFuturesContracts" xml:lang="en-US">Collateral amount on open futures contracts</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_CollateralAmountOnOpenFuturesContracts" xml:lang="en-US">The collateral amount on open future contracts.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_CollateralAmountOnOpenFuturesContracts" xlink:to="lab_bno_CollateralAmountOnOpenFuturesContracts" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncomeStatementAbstract" xml:lang="en-US">Income Statement [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="lab_us-gaap_IncomeStatementAbstract" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_GainLossOnCommodityFuturesAbstract" xlink:label="loc_bno_GainLossOnCommodityFuturesAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_GainLossOnCommodityFuturesAbstract" xml:lang="en-US">Gain Loss On Commodity Futures [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_GainLossOnCommodityFuturesAbstract" xml:lang="en-US">Gain (loss) on trading of commodity futures contracts:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_GainLossOnCommodityFuturesAbstract" xlink:to="lab_bno_GainLossOnCommodityFuturesAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GainLossOnSaleOfInvestments" xlink:label="loc_us-gaap_GainLossOnSaleOfInvestments" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_GainLossOnSaleOfInvestments" xml:lang="en-US">Gain (Loss) On Sale Of Investments</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_GainLossOnSaleOfInvestments" xml:lang="en-US">Realized gain (loss) on closed positions</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSaleOfInvestments" xlink:to="lab_us-gaap_GainLossOnSaleOfInvestments" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UnrealizedGainLossOnInvestments" xlink:label="loc_us-gaap_UnrealizedGainLossOnInvestments" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_UnrealizedGainLossOnInvestments" xml:lang="en-US">Unrealized Gain (Loss) On Investments</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_UnrealizedGainLossOnInvestments" xml:lang="en-US">Change in unrealized loss on open positions</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnrealizedGainLossOnInvestments" xlink:to="lab_us-gaap_UnrealizedGainLossOnInvestments" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DividendIncomeOperating" xlink:label="loc_us-gaap_DividendIncomeOperating" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DividendIncomeOperating" xml:lang="en-US">Dividend Income, Operating</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DividendIncomeOperating" xml:lang="en-US">Dividend income</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendIncomeOperating" xlink:to="lab_us-gaap_DividendIncomeOperating" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InterestIncomeOperating" xlink:label="loc_us-gaap_InterestIncomeOperating" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_InterestIncomeOperating" xml:lang="en-US">Interest Income, Operating</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_InterestIncomeOperating" xml:lang="en-US">Interest income</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeOperating" xlink:to="lab_us-gaap_InterestIncomeOperating" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherIncome" xlink:label="loc_us-gaap_OtherIncome" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OtherIncome" xml:lang="en-US">Other Income</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_OtherIncome" xml:lang="en-US">Other income</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherIncome" xlink:to="lab_us-gaap_OtherIncome" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_TotalIncomeLoss" xlink:label="loc_bno_TotalIncomeLoss" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_TotalIncomeLoss" xml:lang="en-US">Total Income Loss</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_bno_TotalIncomeLoss" xml:lang="en-US">Total income (loss)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_TotalIncomeLoss" xml:lang="en-US">Total Income (Loss).</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_TotalIncomeLoss" xlink:to="lab_bno_TotalIncomeLoss" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OperatingExpensesAbstract" xml:lang="en-US">Operating Expenses [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_OperatingExpensesAbstract" xml:lang="en-US">Expenses</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingExpensesAbstract" xlink:to="lab_us-gaap_OperatingExpensesAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AssetManagementCosts" xlink:label="loc_us-gaap_AssetManagementCosts" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AssetManagementCosts" xml:lang="en-US">Asset Management Costs</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AssetManagementCosts" xml:lang="en-US">General Partner management fees (Note 3)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetManagementCosts" xlink:to="lab_us-gaap_AssetManagementCosts" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProfessionalFees" xlink:label="loc_us-gaap_ProfessionalFees" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ProfessionalFees" xml:lang="en-US">Professional Fees</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_ProfessionalFees" xml:lang="en-US">Professional fees</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProfessionalFees" xlink:to="lab_us-gaap_ProfessionalFees" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherExpenses" xlink:label="loc_us-gaap_OtherExpenses" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OtherExpenses" xml:lang="en-US">Other Expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_OtherExpenses" xml:lang="en-US">Other expenses</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherExpenses" xlink:to="lab_us-gaap_OtherExpenses" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_TotalExpenses" xlink:label="loc_bno_TotalExpenses" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_TotalExpenses" xml:lang="en-US">Total Expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_bno_TotalExpenses" xml:lang="en-US">Total expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_TotalExpenses" xml:lang="en-US">Total Expenses.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_TotalExpenses" xlink:to="lab_bno_TotalExpenses" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_ExpenseWaiver" xlink:label="loc_bno_ExpenseWaiver" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_ExpenseWaiver" xml:lang="en-US">Expense Waiver</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_bno_ExpenseWaiver" xml:lang="en-US">Expense waiver (Note 3)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_ExpenseWaiver" xml:lang="en-US">Amount of expense associated with waiver.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_ExpenseWaiver" xlink:to="lab_bno_ExpenseWaiver" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_TotalExpensesNetOfExpenseWaiver" xlink:label="loc_bno_TotalExpensesNetOfExpenseWaiver" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_TotalExpensesNetOfExpenseWaiver" xml:lang="en-US">Total Expenses Net Of Expense Waiver</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_bno_TotalExpensesNetOfExpenseWaiver" xml:lang="en-US">Net expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_TotalExpensesNetOfExpenseWaiver" xml:lang="en-US">Total expenses net of waiver.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_TotalExpensesNetOfExpenseWaiver" xlink:to="lab_bno_TotalExpensesNetOfExpenseWaiver" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetIncomeLoss" xml:lang="en-US">Net Income (Loss) Attributable To Parent</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_NetIncomeLoss" xml:lang="en-US">Net income (loss)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_NetIncomeLoss" xml:lang="en-US">Net income (loss)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss" xlink:to="lab_us-gaap_NetIncomeLoss" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax" xlink:label="loc_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax" xml:lang="en-US">Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax" xml:lang="en-US">Net income (loss) per limited partnership share</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax" xlink:to="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted" xlink:label="loc_us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted" xml:lang="en-US">Net Income (Loss), Net of Tax, Per Outstanding Limited Partnership Unit, Diluted, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted" xml:lang="en-US">Net income (loss) per weighted average limited partnership share</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted" xlink:to="lab_us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding" xlink:label="loc_us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding" xml:lang="en-US">Weighted Average Limited Partnership Units Outstanding, Basic</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding" xml:lang="en-US">Weighted average limited partnership shares outstanding</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding" xlink:to="lab_us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract" xml:lang="en-US">Statement Of Stockholders&#39; Equity [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="lab_us-gaap_StatementOfStockholdersEquityAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PartnerTypeOfPartnersCapitalAccountAxis" xlink:label="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis" xml:lang="en-US">Statement, Partner Type Of Partners&#39; Capital Account [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis" xlink:to="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" xlink:label="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" xml:lang="en-US">Partner Type of Partners Capital Account, Name [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" xlink:to="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GeneralPartnerMember" xlink:label="loc_us-gaap_GeneralPartnerMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_GeneralPartnerMember" xml:lang="en-US">General Partner [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralPartnerMember" xlink:to="lab_us-gaap_GeneralPartnerMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LimitedPartnerMember" xlink:label="loc_us-gaap_LimitedPartnerMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LimitedPartnerMember" xml:lang="en-US">Limited Partner [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LimitedPartnerMember" xlink:to="lab_us-gaap_LimitedPartnerMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PartnersCapitalAccountContributions" xlink:label="loc_us-gaap_PartnersCapitalAccountContributions" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PartnersCapitalAccountContributions" xml:lang="en-US">Partners&#39; Capital Account, Contributions</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_PartnersCapitalAccountContributions" xml:lang="en-US">Addition of 250,000 partnership shares</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnersCapitalAccountContributions" xlink:to="lab_us-gaap_PartnersCapitalAccountContributions" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PartnersCapitalAccountRedemptions" xlink:label="loc_us-gaap_PartnersCapitalAccountRedemptions" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PartnersCapitalAccountRedemptions" xml:lang="en-US">Partners&#39; Capital Account, Redemptions</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_us-gaap_PartnersCapitalAccountRedemptions" xml:lang="en-US">Redemption of 250,000 partnership shares</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnersCapitalAccountRedemptions" xlink:to="lab_us-gaap_PartnersCapitalAccountRedemptions" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ProfitLoss" xml:lang="en-US">Net Income (Loss), Including Portion Attributable To Noncontrolling Interest</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_ProfitLoss" xml:lang="en-US">Net loss</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProfitLoss" xlink:to="lab_us-gaap_ProfitLoss" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_StatementOfChangesInPartnersCapitalEquityParentheticalAbstract" xlink:label="loc_bno_StatementOfChangesInPartnersCapitalEquityParentheticalAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_StatementOfChangesInPartnersCapitalEquityParentheticalAbstract" xml:lang="en-US">Statement Of Changes In Partners&#39; Capital Equity Parenthetical [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_StatementOfChangesInPartnersCapitalEquityParentheticalAbstract" xlink:to="lab_bno_StatementOfChangesInPartnersCapitalEquityParentheticalAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PartnersCapitalAccountUnitsContributed" xlink:label="loc_us-gaap_PartnersCapitalAccountUnitsContributed" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PartnersCapitalAccountUnitsContributed" xml:lang="en-US">Partners&#39; Capital Account, Units, Contributed</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_PartnersCapitalAccountUnitsContributed" xml:lang="en-US">Addition of partnership units</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnersCapitalAccountUnitsContributed" xlink:to="lab_us-gaap_PartnersCapitalAccountUnitsContributed" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PartnersCapitalAccountUnitsRedeemed" xlink:label="loc_us-gaap_PartnersCapitalAccountUnitsRedeemed" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PartnersCapitalAccountUnitsRedeemed" xml:lang="en-US">Partners&#39; Capital Account, Units, Redeemed</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_PartnersCapitalAccountUnitsRedeemed" xml:lang="en-US">Redemption of partnership units</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnersCapitalAccountUnitsRedeemed" xlink:to="lab_us-gaap_PartnersCapitalAccountUnitsRedeemed" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract" xml:lang="en-US">Statement Of Cash Flows [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" 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/verboseLabel" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Cash Flows from Operating Activities:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" 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/verboseLabel" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities" xlink:label="loc_us-gaap_IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities" xml:lang="en-US">Increase Decrease In Financial Instruments Used In Operating Activities</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_us-gaap_IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities" xml:lang="en-US">(Increase) decrease in commodity futures trading account - cash and cash equivalents</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities" xlink:to="lab_us-gaap_IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts" xlink:label="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts" 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/negatedLabel" xlink:label="lab_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts" xml:lang="en-US">Unrealized loss on futures contracts</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts" xlink:to="lab_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseDueFromOfficersAndStockholders" xlink:label="loc_us-gaap_IncreaseDecreaseDueFromOfficersAndStockholders" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncreaseDecreaseDueFromOfficersAndStockholders" xml:lang="en-US">Increase (Decrease) Due From Officers and Stockholders</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_us-gaap_IncreaseDecreaseDueFromOfficersAndStockholders" xml:lang="en-US">Decrease in receivable from General Partner</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseDueFromOfficersAndStockholders" xlink:to="lab_us-gaap_IncreaseDecreaseDueFromOfficersAndStockholders" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInDividendsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInDividendsReceivable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncreaseDecreaseInDividendsReceivable" 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="lab_us-gaap_IncreaseDecreaseInDividendsReceivable" xml:lang="en-US">Decrease in dividend receivable</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInDividendsReceivable" xlink:to="lab_us-gaap_IncreaseDecreaseInDividendsReceivable" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xml:lang="en-US">Increase (Decrease) In Other Operating Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xml:lang="en-US">Increase in other assets</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_IncreaseDecreaseInProfessionalFeesPayable" xlink:label="loc_bno_IncreaseDecreaseInProfessionalFeesPayable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_IncreaseDecreaseInProfessionalFeesPayable" xml:lang="en-US">Increase Decrease In Professional Fees Payable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_IncreaseDecreaseInProfessionalFeesPayable" xml:lang="en-US">Decrease in professional fees payable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_IncreaseDecreaseInProfessionalFeesPayable" xml:lang="en-US">Increase (Decrease) In Professional Fees Payable.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_IncreaseDecreaseInProfessionalFeesPayable" xlink:to="lab_bno_IncreaseDecreaseInProfessionalFeesPayable" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_IncreaseDecreaseManagementFeesPayable" xlink:label="loc_bno_IncreaseDecreaseManagementFeesPayable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_IncreaseDecreaseManagementFeesPayable" 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="lab_bno_IncreaseDecreaseManagementFeesPayable" xml:lang="en-US">Decrease in General Partner management fees payable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_IncreaseDecreaseManagementFeesPayable" xml:lang="en-US">Increase (Decrease) Management Fees Payable.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_IncreaseDecreaseManagementFeesPayable" xlink:to="lab_bno_IncreaseDecreaseManagementFeesPayable" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInPayablesToBrokerDealers" xlink:label="loc_us-gaap_IncreaseDecreaseInPayablesToBrokerDealers" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncreaseDecreaseInPayablesToBrokerDealers" 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/verboseLabel" xlink:label="lab_us-gaap_IncreaseDecreaseInPayablesToBrokerDealers" xml:lang="en-US">Decrease in brokerage commissions payable</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInPayablesToBrokerDealers" xlink:to="lab_us-gaap_IncreaseDecreaseInPayablesToBrokerDealers" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xml:lang="en-US">Increase (Decrease) In Other Operating Liabilities</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xml:lang="en-US">Increase (decrease) in other liabilities</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" 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="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xml:lang="en-US">Net cash provided by (used in) operating activities</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" 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/verboseLabel" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xml:lang="en-US">Cash Flows from Financing Activities:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromPartnershipContribution" xlink:label="loc_us-gaap_ProceedsFromPartnershipContribution" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ProceedsFromPartnershipContribution" xml:lang="en-US">Proceeds From Partnership Contribution</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_ProceedsFromPartnershipContribution" xml:lang="en-US">Addition of partnership shares</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromPartnershipContribution" xlink:to="lab_us-gaap_ProceedsFromPartnershipContribution" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_PaymentsToPartnershipRedemption" xlink:label="loc_bno_PaymentsToPartnershipRedemption" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_PaymentsToPartnershipRedemption" xml:lang="en-US">Payments To Partnership Redemption</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_bno_PaymentsToPartnershipRedemption" xml:lang="en-US">Redemption of partnership shares</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_PaymentsToPartnershipRedemption" xml:lang="en-US">Payments To Partnership Redemption.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_PaymentsToPartnershipRedemption" xlink:to="lab_bno_PaymentsToPartnershipRedemption" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities" xml:lang="en-US">Net Cash Provided By (Used In) Financing Activities</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities" xml:lang="en-US">Net cash provided by (used in) financing activities</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xml:lang="en-US">Cash and Cash Equivalents, Period Increase (Decrease)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xml:lang="en-US">Net Increase (Decrease) in Cash and Cash Equivalents</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock" xml:lang="en-US">Organization, Consolidation and Presentation Of Financial Statements Disclosure and Significant Accounting Policies [Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock" xml:lang="en-US">ORGANIZATION AND BUSINESS</label>

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    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_DocumentAndEntityInformationAbstract" xlink:label="loc_bno_DocumentAndEntityInformationAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_DocumentAndEntityInformationAbstract" xml:lang="en-US">Document And Entity Information [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_DocumentAndEntityInformationAbstract" xlink:to="lab_bno_DocumentAndEntityInformationAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentInformationTable" xml:lang="en-US">Document Information [Table]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationTable" xlink:to="lab_dei_DocumentInformationTable" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentType" xml:lang="en-US">Document Type</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_AmendmentFlag" xml:lang="en-US">Amendment Flag</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentPeriodEndDate" xml:lang="en-US">Document Period End Date</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentFiscalYearFocus" xml:lang="en-US">Document Fiscal Year Focus</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus" xlink:to="lab_dei_DocumentFiscalYearFocus" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xml:lang="en-US">Document Fiscal Period Focus</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus" xlink:to="lab_dei_DocumentFiscalPeriodFocus" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_TradingSymbol" xml:lang="en-US">Trading Symbol</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xml:lang="en-US">Entity Common Stock, Shares Outstanding</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding" xlink:to="lab_dei_EntityCommonStockSharesOutstanding" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityRegistrantName" xml:lang="en-US">Entity Registrant Name</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityCentralIndexKey" xml:lang="en-US">Entity Central Index Key</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_CurrentFiscalYearEndDate" xml:lang="en-US">Current Fiscal Year End Date</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate" xlink:to="lab_dei_CurrentFiscalYearEndDate" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityFilerCategory" xml:lang="en-US">Entity Filer Category</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory" xlink:to="lab_dei_EntityFilerCategory" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaap_UseOfEstimates" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_UseOfEstimates" xml:lang="en-US">Use Of Estimates, Policy [Policy Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_UseOfEstimates" xml:lang="en-US">Use of Estimates</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UseOfEstimates" xlink:to="lab_us-gaap_UseOfEstimates" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_TransactionFeesPaid" xlink:label="loc_bno_TransactionFeesPaid" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_TransactionFeesPaid" xml:lang="en-US">Transaction Fees Paid</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_TransactionFeesPaid" xml:lang="en-US">Transaction fees per transaction</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_TransactionFeesPaid" xml:lang="en-US">Transaction Fees Paid.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_TransactionFeesPaid" xlink:to="lab_bno_TransactionFeesPaid" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_CommissionPerRoundTurn" xlink:label="loc_bno_CommissionPerRoundTurn" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_CommissionPerRoundTurn" xml:lang="en-US">Commission Per Round Turn</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_CommissionPerRoundTurn" xml:lang="en-US">Commission Per Round Turn</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_bno_CommissionPerRoundTurn" xml:lang="en-US">Represents the commissions round turn trade including exchange fees.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_CommissionPerRoundTurn" xlink:to="lab_bno_CommissionPerRoundTurn" />

    <loc xlink:type="locator" xlink:href="bno-20140331.xsd#bno_OpenFutureContractsLongMember" xlink:label="loc_bno_OpenFutureContractsLongMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_bno_OpenFutureContractsLongMember" xml:lang="en-US">Open Future Contracts Long [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_bno_OpenFutureContractsLongMember" xml:lang="en-US">Open Futures Contracts - Long [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bno_OpenFutureContractsLongMember" xlink:to="lab_bno_OpenFutureContractsLongMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="loc_dei_DocumentInformationLineItems" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentInformationLineItems" xml:lang="en-US">Document Information [Line Items]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationLineItems" xlink:to="lab_dei_DocumentInformationLineItems" />
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