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ORGANIZATION AND BUSINESS (Details)
 1 Months Ended 12 Months Ended
Apr. 28, 2020
$ / shares
shares
Apr. 08, 2020
Apr. 10, 2006
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
$ / item
shares
Dec. 31, 2020
$ / shares
Dec. 31, 2019
$ / shares
 [1]
Dec. 31, 2018
$ / shares
 [1]
Organization, Consolidation and Presentation of Financial Statements Disclosure              
Number of successive valuation days       30 days      
Average daily percentage change in the price of the Benchmark Futures Contract considered       10.00%      
Fee paid by Authorized Purchasers for each order placed to create one or more Creation Baskets or to redeem one or more baskets | $ / item       1,000      
Number of Contracts | $       32,136      
Limited Partners' Capital Account, Units Authorized     17,000,000 5,627,000,000      
Net asset value per unit | $ / shares     $ 67.39 $ 54.18 [1] $ 33.07 [1] $ 102.27 $ 76.68
Limited partners capital account units issued     200,000        
Value of units issued | $     $ 13,479,000        
Conversion ratio 0.125 0.125          
Creation Baskets              
Organization, Consolidation and Presentation of Financial Statements Disclosure              
Number of units per basket       100,000      
Redemption Baskets              
Organization, Consolidation and Presentation of Financial Statements Disclosure              
Number of units per basket       100,000      
USO              
Organization, Consolidation and Presentation of Financial Statements Disclosure              
Number of shares issued 1,482,900,000     185,362,500      
Number of shares outstanding 1,482,900,000     185,362,500      
Net asset value per unit | $ / shares $ 2.04     $ 16.35      
Open Futures Contracts, Long | United States Contracts              
Organization, Consolidation and Presentation of Financial Statements Disclosure              
Number of Contracts       32,136 74,708    
[1] On April 28, 2020, there was a 1-for-8 reverse share split. The Financial Highlights have been adjusted for the periods shown to reflect the 1-for-8 reverse share split on a retroactive basis.