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ORGANIZATION AND BUSINESS (Details) | Dec. 06, 2007 USD ($) $ / shares shares | Jun. 30, 2023 USD ($) contract $ / shares shares | Mar. 31, 2023 $ / shares | Dec. 31, 2022 $ / shares | Jun. 30, 2022 $ / shares | Mar. 31, 2022 $ / shares | Dec. 31, 2021 $ / shares | Dec. 04, 2007 shares
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ORGANIZATION AND BUSINESS |  |  |  |  |  |  |  |
Number of oil futures contracts held | contract |  | 1,052 |  |  |  |  |  |
Number of registered shares |  | 311,000,000 |  |  |  |  |  | 11,000,000
Net asset value per share | $ / shares | $ 50.00 | $ 32.70 | $ 33.77 | $ 35.45 | $ 39.48 | $ 36.99 | $ 27.81 |
Number of shares issued | 300,000 |  |  |  |  |  |  |
Value of shares issued | $ | $ 15,000,000 |  |  |  |  |  |  |
Creation Baskets |  |  |  |  |  |  |  |
ORGANIZATION AND BUSINESS |  |  |  |  |  |  |  |
Number of shares per basket |  | 50,000 |  |  |  |  |  |
Fee paid by authorized purchasers for each order placed to create one or more creation baskets or to redeem one or more baskets | $ |  | $ 350 |  |  |  |  |  |

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