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ORGANIZATION AND BUSINESS (Details Textual) (USD $)
 1 Months Ended 6 Months Ended
Jun. 02, 2010
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Dec. 31, 2012
May 31, 2010
Units Issued During Period To Authorized Purchasers Through Distributors   50,000        
Transaction Fee   $ 350        
Initially Registered Units Of Entity With Sec           50,000,000
Net asset value per unit $ 50.00 $ 45.35 $ 43.81 $ 38.88 [1] $ 40.98 [1]  
Initial stock units issued 200,000 450,000        
Initial Stock Units Outstanding   450,000        
Initial Units Value, Issued $ 10,000,000          
Total Units Registered Of Entity   50,000,000        
Maximum [Member]
            
Net asset value per unit   $ 89.92        
Initial stock units issued   900,000        
Initial Stock Units Outstanding   900,000        
Minimum [Member]
            
Net asset value per unit   $ 44.96        
Open Futures Contracts - Long [Member] | United States [Member] | ICE Brent Crude Oil Futures CO August 2014 contracts, expiring July 2014 [Member]
            
Number of Contracts   484        
[1] On August 26, 2013, BNO executed a 2-for-1 forward share split for all shareholders of record as of the close of markets on August 26, 2013. The 2-for-1 forward share split was payable after the close of markets on August 28, 2013. BNO began trading at its post split price on August 29, 2013. The Financial Highlights (Unaudited) have been adjusted for the periods shown to reflect the 2-for-1 forward share split on a retroactive basis.