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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables) | 12 Months Ended
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Dec. 31, 2024
FAIR VALUE OF FINANCIAL INSTRUMENTS |
Summary of valuation of securities using fair value hierarchy | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
At December 31, 2024 |  | Total |  | Level I |  | Level II |  | Level III
Short-Term Investments | ​ | $ | 532,370,156 | ​ | $ | 532,370,156 | ​ | $ | — | ​ | $ | —
Exchange-Traded Futures Contracts | ​ |  | — | ​ |  | — | ​ |  | — | ​ | ​ | —
United States Contracts | ​ |  | 80,696,279 | ​ |  | 80,696,279 | ​ | ​ | — | ​ | ​ | —
OTC Commodity Swap Contract | ​ | ​ | (2,205) | ​ | ​ | ​ | ​ | ​ | (2,205) | ​ | ​ | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
At December 31, 2023 |  | Total |  | Level I |  | Level II |  | Level III
Short-Term Investments | ​ | $ | 70,950,000 | ​ | $ | 70,950,000 | ​ | $ | — | ​ | $ | —
Exchange-Traded Futures Contracts | ​ |  | — | ​ |  | — | ​ |  | — | ​ | ​ | —
United States Contracts | ​ |  | 40,072,461 | ​ |  | 40,072,461 | ​ |  | — | ​ |  | —
OTC Commodity Swap Contract | ​ | ​ | 14,903,211 | ​ | ​ | ​ | ​ | ​ | 14,903,211 | ​ | ​ | ​
Summary of fair value of derivative instruments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Statements of | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Financial |  | Fair Value at |  | Fair Value at
​ | ​ | Condition | ​ | December 31, | ​ | December 31,
Derivatives not Accounted for as Hedging Instruments | ​ | Location | ​ | 2024 | ​ | 2023
Futures - Commodity Contracts | ​ | Unrealized gain (loss) on open commodity futures contracts | ​ | $ | 80,696,279 | ​ | $ | 40,072,461
Swap - Commodity Contracts | ​ | Unrealized gain (loss) on open OTC commodity swap contracts | ​ | $ | (2,205) | ​ | $ | 14,903,211
Summary of the effect of derivative instruments on the statements of operations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | For the year ended | ​ | For the year ended | ​ | For the year ended
​ | ​ | ​ | ​ | December 31, 2024 | ​ | December 31, 2023 | ​ | December 31, 2022
​ |  | ​ |  | ​ | ​ |  | Change in |  | ​ | ​ |  | Change in |  | ​ | ​ | ​ | Change in
​ | ​ | Location of | ​ | Realized | ​ | Unrealized | ​ | Realized | ​ | Unrealized | ​ | Realized | ​ | Unrealized
​ | ​ | Gain (Loss) | ​ | Gain (Loss) | ​ | Gain (Loss) on | ​ | Gain (Loss) | ​ | Gain (Loss) on | ​ | Gain (Loss) | ​ | Gain (Loss) on
Derivatives not | ​ | on Derivatives | ​ | on Derivatives | ​ | Derivatives | ​ | on Derivatives | ​ | Derivatives | ​ | on Derivatives | ​ | Derivatives
Accounted for as | ​ | Recognized in | ​ | Recognized in | ​ | Recognized in | ​ | Recognized in | ​ | Recognized in | ​ | Recognized in | ​ | Recognized in
Hedging Instruments | ​ | Income | ​ | Income | ​ | Income | ​ | Income | ​ | Income | ​ | Income |  | Income
Futures - Commodity Contracts | ​ | Realized gain (loss) on closed commodity futures contracts | ​ | $ | (47,713,339) |  | ​ | ​ | ​ | $ | (762,934,486) |  | ​ | ​ | ​ | $ | 218,669,630 | ​ | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Change in unrealized gain (loss) on open commodity futures contracts | ​ | ​ | ​ | ​ | $ | 40,623,818 | ​ | ​ | ​ | ​ | $ | 184,838,398 | ​ | ​ | ​ | ​ | $ | (146,128,350)
OTC Swap - Commodity Contracts | ​ | Realized gain (loss) on closed OTC commodity swap contracts | ​ | $ | 58,360,050 | ​ | ​ | ​ | ​ | $ | (144,572,961) | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Change in unrealized gain (loss) on open OTC commodity swap contracts | ​ | ​ | ​ | ​ | $ | (14,905,416) | ​ | ​ | ​ | ​ | $ | 14,903,211 | ​ | ​ | ​ | ​ | $ | —
​

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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
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