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FAIR VALUE OF FINANCIAL INSTRUMENTS - Fair Value of Derivative Instruments (Details) - USD ($) | Sep. 30, 2025 | Dec. 31, 2024
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FAIR VALUE OF FINANCIAL INSTRUMENTS |  |
Unrealized gain (loss) on open commodity futures contracts | $ (2,068,190) | $ 28,431,020
Unrealized gain (loss) on open OTC commodity swap contracts | 91,039 | (2,068)
Commodity Contracts | Futures |  |
FAIR VALUE OF FINANCIAL INSTRUMENTS |  |
Unrealized gain (loss) on open commodity futures contracts | (2,068,190) | 28,431,020
Commodity Contracts | Swap |  |
FAIR VALUE OF FINANCIAL INSTRUMENTS |  |
Unrealized gain (loss) on open OTC commodity swap contracts | $ 91,039 | $ (2,068)

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