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v2.4.1.9

Condensed Statements of Operations (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2015 | Mar. 31, 2014
Gain (loss) on trading of commodity futures contracts: |  |
Realized gain (loss) on closed positions | $ 1,725,380 us-gaap_GainLossOnSaleOfInvestments | $ (98,080)us-gaap_GainLossOnSaleOfInvestments
Change in unrealized gain (loss) on open positions | (4,188,770)us-gaap_UnrealizedGainLossOnInvestments | (276,270)us-gaap_UnrealizedGainLossOnInvestments
Dividend income | 522 us-gaap_DividendIncomeOperating | 37 us-gaap_DividendIncomeOperating
Interest income | 8,117 us-gaap_InterestIncomeOperating | 1,751 us-gaap_InterestIncomeOperating
ETF transaction fees | 10,500 us-gaap_OtherIncome | 3,150 us-gaap_OtherIncome
Total income (loss) | (2,444,251)bno_TotalIncomeLoss | (369,412)bno_TotalIncomeLoss
Expenses |  |
General Partner management fees (Note 3) | 153,435 us-gaap_AssetManagementCosts | 49,695 us-gaap_AssetManagementCosts
Professional fees | 31,278 us-gaap_ProfessionalFees | 40,680 us-gaap_ProfessionalFees
Brokerage commissions | 25,577 us-gaap_FloorBrokerageExchangeAndClearanceFees | 4,109 us-gaap_FloorBrokerageExchangeAndClearanceFees
Directors' fees and insurance | 2,547 us-gaap_NoninterestExpenseDirectorsFees | 1,935 us-gaap_NoninterestExpenseDirectorsFees
Total expenses | 212,837 bno_TotalExpenses | 96,419 bno_TotalExpenses
Expense waiver (Note 3) | (27,677)bno_ExpenseWaiver | (30,741)bno_ExpenseWaiver
Net expenses | 185,160 bno_TotalExpensesNetOfExpenseWaiver | 65,678 bno_TotalExpensesNetOfExpenseWaiver
Net income (loss) | $ (2,629,411)us-gaap_NetIncomeLoss | $ (435,090)us-gaap_NetIncomeLoss
Net income (loss) per limited partnership share | $ (1.91)us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax | $ 0.75 us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax
Net income (loss) per weighted average limited partnership share | $ (0.67)us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted | $ (0.69)us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted
Weighted average limited partnership shares outstanding | 3,921,111 us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding | 626,667 us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding

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