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FAIR VALUE OF FINANCIAL INSTRUMENTS - Summary of Effect of Derivative Instruments on Statements of Operations (Details) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
FAIR VALUE OF FINANCIAL INSTRUMENTS      
Location of Gain (Loss) on Derivatives Recognized in Income Unrealized Gain (Loss) On Investments    
Change in Unrealized Gain (Loss) on Derivatives Recognized in Income $ 2,763,860 $ 10,285,810 $ 1,034,920
Commodity Contract      
FAIR VALUE OF FINANCIAL INSTRUMENTS      
Location of Gain (Loss) on Derivatives Recognized in Income Realized gain (loss) on closed commodity futures contracts    
Realized Gain (Loss) on Derivatives Recognized in Income $ 79,019,530 $ 150,117,880 $ 119,917,640