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FINANCIAL HIGHLIGHTS (Tables) | 6 Months Ended
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Jun. 30, 2024
FINANCIAL HIGHLIGHTS |
Schedule of per share performance data and other supplemental financial data | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Three months ended |  | Six months ended | ​ | Six months ended | ​
​ | ​ | June 30, 2024 | ​ | June 30, 2023 |  | June 30, 2024 | ​ | June 30, 2023 | ​
​ |  | (Unaudited) |  | (Unaudited) |  | (Unaudited) |  | (Unaudited) | ​
Per Share Operating Performance: |  | ​ |  |  | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net asset value, beginning of period | ​ | $ | 7.77 | ​ | $ | 11.66 | ​ | $ | 8.58 | ​ | $ | 17.24 | ​
Total income (loss) | ​ |  | 0.55 | ​ |  | (0.13) | ​ | ​ | (0.25) | ​ | ​ | (5.68) | ​
Total expenses | ​ |  | (0.04) | ​ |  | (0.02) | ​ | ​ | (0.05) | ​ | ​ | (0.05) | ​
Net increase (decrease) in net asset value | ​ |  | 0.51 | ​ |  | (0.15) | ​ | ​ | (0.30) | ​ | ​ | (5.73) | ​
Net asset value, end of period | ​ | $ | 8.28 | ​ | $ | 11.51 | ​ | $ | 8.28 | ​ | $ | 11.51 | ​
​ | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total Return | ​ |  | 6.56 | % |  | (1.29) | % | ​ | (3.50) | % | ​ | (33.24) | %
​ | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ratios to Average Net Assets | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total income (loss) | ​ | ​ | 6.79 | % |  | (0.89) | % | ​ | (5.54) | % | ​ | (47.35) | %
Management fees#* | ​ |  | 0.75 | % |  | 0.75 | % | ​ | 0.75 | % | ​ | 0.75 | %
Total expenses excluding management fees# | ​ |  | 1.38 | % |  | 0.92 | % | ​ | 1.49 | % | ​ | 0.88 | %
Expense waived# | ​ |  | (0.42) | % |  | (0.77) | % | ​ | (0.92) | % | ​ | (0.73) | %
Net expense excluding management fees# | ​ |  | 0.96 | % |  | 0.15 | % | ​ | 0.57 | % | ​ | 0.15 | %
Net income (loss) | ​ |  | 6.36 | % |  | (1.11) | % | ​ | (6.19) | % | ​ | (47.80) | %
#Annualized.
* | Effective May 1, 2024, the management fee that UNL is contractually obligated to pay USCF, which is based on UNL's average daily total net assets and is paid monthly, was reduced from 0.75% per annum to 0.60% per annum.

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