Nominal or face amount used to calculate payment on derivative.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 944
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 15
-Publisher FASB
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Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

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Percentage of base fee.

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No definition available.

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Represents basis amount for fee percentage.

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- Definition

Represents the commissions per round-turn trade, including applicable exchange and NFA fees for oil futures contracts and options on oil futures contracts.

+ References

No definition available.

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It represents the flat fees percentage.

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Represents the total net asset percentage.

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Ratio Of Expenses To Average Net Assets

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CONTRACTS AND AGREEMENTS (Details)			3 Months Ended
CONTRACTS AND AGREEMENTS (Details)	Oct. 01, 2022	Sep. 30, 2022 USD ($)	Mar. 31, 2024 USD ($) $ / item	Mar. 31, 2023 USD ($)
Minimum
CONTRACTS AND AGREEMENTS
Flat fee			0.20%
Maximum
CONTRACTS AND AGREEMENTS
Flat fee			0.30%
Open future
CONTRACTS AND AGREEMENTS
Monthly average volume			$ 1,099,028,412	$ 1,422,127,536
Marketing Agreement
CONTRACTS AND AGREEMENTS
Marketing fee exclusive of the incentive fee		$ 425,000
Marketing Agreement \| USOF's assets from $0- $500 million
CONTRACTS AND AGREEMENTS
Fee percentage		0.00%
Marketing Agreement \| USOF's assets from $0- $500 million \| Minimum
CONTRACTS AND AGREEMENTS
Base amount for determining fee percentage		$ 0
Marketing Agreement \| USOF's assets from $0- $500 million \| Maximum
CONTRACTS AND AGREEMENTS
Base amount for determining fee percentage		$ 500,000,000
Marketing Agreement \| USOF's assets from $500 million - $4 billion
CONTRACTS AND AGREEMENTS
Fee percentage		0.04%
Marketing Agreement \| USOF's assets from $500 million - $4 billion \| Minimum
CONTRACTS AND AGREEMENTS
Base amount for determining fee percentage		$ 500,000,000
Marketing Agreement \| USOF's assets from $500 million - $4 billion \| Maximum
CONTRACTS AND AGREEMENTS
Base amount for determining fee percentage		$ 4,000,000,000
Marketing Agreement \| USOF's assets in excess of $4 billion
CONTRACTS AND AGREEMENTS
Fee percentage		0.03%
Percentage of total net asset	0.025%
Ratio of expense to average net assets			10.00%
Marketing Agreement \| USOF's assets in excess of $4 billion \| Minimum
CONTRACTS AND AGREEMENTS
Base amount for determining fee percentage		$ 4,000,000,000
Brokerage and Futures Commission Merchant Agreements \| Minimum
CONTRACTS AND AGREEMENTS
Commissions per round-turn trade, including applicable exchange and NFA fees for oil futures contracts and options on oil futures contracts \| $ / item			7
Brokerage and Futures Commission Merchant Agreements \| Maximum
CONTRACTS AND AGREEMENTS
Commissions per round-turn trade, including applicable exchange and NFA fees for oil futures contracts and options on oil futures contracts \| $ / item			8