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  <element name="ExpensesPerUnit" id="bren_ExpensesPerUnit" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FairValueAssetsAndLiabilitiesMeasuredOnNonrecurringBasisLineItems" id="bren_FairValueAssetsAndLiabilitiesMeasuredOnNonrecurringBasisLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FairValueAssetsAndLiabilitiesMeasuredOnNonrecurringBasisTable" id="bren_FairValueAssetsAndLiabilitiesMeasuredOnNonrecurringBasisTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="FairValuesOfDerivativeInstrumentsOfFuturesAndExchangeClearedSwapsAndOptionsContractsAsSeparateAssetsAndLiabilitiesTableTextBlock" id="bren_FairValuesOfDerivativeInstrumentsOfFuturesAndExchangeClearedSwapsAndOptionsContractsAsSeparateAssetsAndLiabilitiesTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FinancialHighlightsTextBlock" id="bren_FinancialHighlightsTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FinancialInstrumentsMaturityPeriod" id="bren_FinancialInstrumentsMaturityPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FuturesAndExchangeClearedSwapContractsEnergyMember" id="bren_FuturesAndExchangeClearedSwapContractsEnergyMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FuturesAndExchangeClearedSwapContractsMember" id="bren_FuturesAndExchangeClearedSwapContractsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FuturesAndExchangeClearedSwapContractsPurchasedMember" id="bren_FuturesAndExchangeClearedSwapContractsPurchasedMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FuturesAndExchangeClearedSwapContractsSoldMember" id="bren_FuturesAndExchangeClearedSwapContractsSoldMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FuturesAndExchangeClearedSwapsMember" id="bren_FuturesAndExchangeClearedSwapsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FuturesContractsPolicyPolicyTextBlock" id="bren_FuturesContractsPolicyPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="IceHenryHubNaturalGasSwapMember" id="bren_IceHenryHubNaturalGasSwapMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="InterestIncomePerUnit" id="bren_InterestIncomePerUnit" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="InvestmentInMasterFairValueDisclosure" id="bren_InvestmentInMasterFairValueDisclosure" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ManagementFees" id="bren_ManagementFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MemberCapitalAccountUnitsOutstanding" id="bren_MemberCapitalAccountUnitsOutstanding" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MembersCapital" id="bren_MembersCapital" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MembersCapitalAccountRedemptions" id="bren_MembersCapitalAccountRedemptions" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MembersCapitalAccountSubscriptions" id="bren_MembersCapitalAccountSubscriptions" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetAssetValuePerUnit" id="bren_NetAssetValuePerUnit" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetAssetValuePerUnitBeginningOfPeriod" id="bren_NetAssetValuePerUnitBeginningOfPeriod" type="us-types:perUnitItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetAssetValuePerUnitEndOfPeriod" id="bren_NetAssetValuePerUnitEndOfPeriod" type="us-types:perUnitItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetAssetValuePerUnitIncreaseDecreaseForPeriod" id="bren_NetAssetValuePerUnitIncreaseDecreaseForPeriod" type="us-types:perUnitItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetGainsLossesOnTradingOfCommodityInterestsAbstract" id="bren_NetGainsLossesOnTradingOfCommodityInterestsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetIncomeLossPerUnitPolicyTextBlock" id="bren_NetIncomeLossPerUnitPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetInvestmentIncomeLoss" id="bren_NetInvestmentIncomeLoss" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NymexHenryHubNaturalGasMember" id="bren_NymexHenryHubNaturalGasMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NymexHhSwapMember" id="bren_NymexHhSwapMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OptionPurchasedEnergyMember" id="bren_OptionPurchasedEnergyMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OptionsPolicyTextBlock" id="bren_OptionsPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OptionsPremiumReceivedAtFairValue" id="bren_OptionsPremiumReceivedAtFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OptionsPremiumReceivedEnergyMember" id="bren_OptionsPremiumReceivedEnergyMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OptionsPremiumReceivedMember" id="bren_OptionsPremiumReceivedMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OptionsPurchasedAtFairValue" id="bren_OptionsPurchasedAtFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OptionsPurchasedMember" id="bren_OptionsPurchasedMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OptionTypeAxis" id="bren_OptionTypeAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
  <element name="OptionTypeDomain" id="bren_OptionTypeDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PartnershipsInvestmentsPolicyTextBlock" id="bren_PartnershipsInvestmentsPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PartnershipUnitPurchase" id="bren_PartnershipUnitPurchase" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PartnershipUnitPurchaseFairValue" id="bren_PartnershipUnitPurchaseFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PartnershipUnitsPurchasedCashValue" id="bren_PartnershipUnitsPurchasedCashValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PercentageOfMembersCapital" id="bren_PercentageOfMembersCapital" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RatiosToAverageNetAssetsAbstract" id="bren_RatiosToAverageNetAssetsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RatiosToAverageNetAssetsNetInvestmentIncomeLoss" id="bren_RatiosToAverageNetAssetsNetInvestmentIncomeLoss" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RatiosToAverageNetAssetsNetInvestmentIncomeLossBeforeAllocationToSpecialLimitedPartner" id="bren_RatiosToAverageNetAssetsNetInvestmentIncomeLossBeforeAllocationToSpecialLimitedPartner" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RatioToAverageNetAssetsOperatingExpense" id="bren_RatioToAverageNetAssetsOperatingExpense" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RatioToAverageNetAssetsOperatingExpensesAllocationToSpecialLimitedPartner" id="bren_RatioToAverageNetAssetsOperatingExpensesAllocationToSpecialLimitedPartner" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RealizedAndUnrealizedGainsLossesPerUnit" id="bren_RealizedAndUnrealizedGainsLossesPerUnit" type="us-types:perUnitItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RedeemableUnitOfLimitedPartnershipInterest" id="bren_RedeemableUnitOfLimitedPartnershipInterest" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RedemptionsGeneralPartner" id="bren_RedemptionsGeneralPartner" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ReturnAfterAllocationToSpecialLimitedPartner" id="bren_ReturnAfterAllocationToSpecialLimitedPartner" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ReturnBeforeAllocationToSpecialLimitedPartner" id="bren_ReturnBeforeAllocationToSpecialLimitedPartner" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SpecialLimitedPartnerMember" id="bren_SpecialLimitedPartnerMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SpecialLimitedPartnerRedeemableUnitsOutstanding" id="bren_SpecialLimitedPartnerRedeemableUnitsOutstanding" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SpecialLimitedPartnersCapitalAccount" id="bren_SpecialLimitedPartnersCapitalAccount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StatementsOfIncomeAndExpensesAndChangesInMembersCapitalTableTextBlock" id="bren_StatementsOfIncomeAndExpensesAndChangesInMembersCapitalTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockOptionRedemptionPremium" id="bren_StockOptionRedemptionPremium" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
</schema>
