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FAIR VALUE OF FINANCIAL INSTRUMENTS - Effect of Derivative Instruments on Condensed Statements of Operations (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]      
Change in unrealized gain (loss) on open positions $ 15,817,312 $ 6,313,791 $ 46,252,567
Commodity Contracts [Member] | Futures - Commodity Contracts [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Realized gain (loss) on closed positions 6,104,950 (206,518,620) (126,561,127)
Change in unrealized gain (loss) on open positions $ 15,817,312 $ 6,313,791 $ 46,252,567