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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 2) - USD ($)
 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Derivatives not Accounted for as Hedging Instruments Futures - Commodity Contracts  
Location of Gain (Loss) on Derivatives Recognized in Income Change in unrealized gain (loss) on open positions  
Realized Gain (Loss) on Derivatives Recognized in Income $ (21,353,500) $ (4,181,120)
Change in Unrealized Gain (Loss) on Derivatives Recognized in Income $ 1,982,630 $ (3,035,200)
Commodity Contract [Member]    
Location of Gain (Loss) on Derivatives Recognized in Income Realized gain (loss) on closed positions