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ORGANIZATION AND BUSINESS (Details) | Dec. 06, 2007 USD ($) $ / shares shares | Jun. 30, 2022 USD ($) contract $ / shares $ / item shares | Mar. 31, 2022 $ / shares | Dec. 31, 2021 $ / shares | Jun. 30, 2021 $ / shares | Mar. 31, 2021 $ / shares | Dec. 31, 2020 $ / shares | Dec. 04, 2007 shares
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Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |  |  |  |  |  |  |
Number of oil futures contracts for light, sweet crude oil traded on the NYMEX | contract |  | 1,445 |  |  |  |  |  |
Number of shares per basket | $ / item |  | 50,000 |  |  |  |  |  |
Net asset value per share | $ / shares | $ 50.00 | $ 39.48 | $ 36.99 | $ 27.81 | $ 25.61 | $ 20.89 | $ 17.23 |
Number of shares issued | shares | 300,000 |  |  |  |  |  |  |
Value of shares issued | $ | $ 15,000,000 |  |  |  |  |  |  |
Number of registered shares | shares |  | 311,000,000 |  |  |  |  |  | 11,000,000
Creation Baskets |  |  |  |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |  |  |  |  |  |  |
Fee paid by Authorized Purchasers for each order placed to create one or more Creation Baskets or to redeem one or more baskets | $ |  | $ 350 |  |  |  |  |  |
Number of shares per basket | $ / item |  | 50,000 |  |  |  |  |  |

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