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ORGANIZATION AND BUSINESS (Details)	1 Months Ended	6 Months Ended
	Apr. 10, 2006 USD ($) $ / shares shares	Jun. 30, 2020 $ / shares $ / item shares	Apr. 28, 2020 $ / shares shares	Mar. 31, 2020 $ / shares	Dec. 31, 2019 $ / shares	Jun. 30, 2019 $ / shares	Mar. 31, 2019 $ / shares	Dec. 31, 2018 $ / shares
Organization, Consolidation and Presentation of Financial Statements Disclosure
Shares of USO issued		185,362,500
Shares of USO outstanding		185,362,500
Per share NAV | $ / shares		$ 16.35	$ 2.04
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
Limited Partners' Capital Account, Units Authorized	17,000,000	5,627,000,000
Net asset value per unit | $ / shares	$ 67.39	$ 28.02		$ 33.94	$ 102.27	$ 97.06	$ 100.00	$ 76.68
Limited Partners' Capital Account, Units Issued	200,000
Value of units issued | $	$ 13,479,000
Number of successive valuation days		30 days
Average daily percentage change in the price of the Benchmark Futures Contract considered		10.00%
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
Shares of USO issued			1,482,900,000
Shares of USO outstanding			1,482,900,000
Open Futures Contracts- Long | United States Contracts | NYMEX WTI Crude Oil Futures CL May 2020 contracts, expiring April 2020
Organization, Consolidation and Presentation of Financial Statements Disclosure
Number of Contracts		117,998

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