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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 1) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Derivatives not Accounted for as Hedging Instruments Futures - Commodity Contracts  
Statements of Financial Condition Location Assets  
Futures - Commodity Contracts $ 2,332,880 $ (7,442,340)