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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2023
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Fees and expenses	$ 184,717	$ 206,336	$ 572,326	$ 622,384
USO And Related Public Funds | Forecast
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Fees and expenses					$ 1,210,000
USCF
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
USCF management fee			0.45%
USO
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Ongoing registration fees and other offering expenses			$ 0	0
Licensing fee incurred			$ 178,112	$ 302,707
Investor tax reporting cost					2,200,000
USO | Forecast
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Fees and expenses					$ 700,000
Licensing Agreements
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Fee percentage			0.015%

X

- Definition

Noninterest expense related to directors' fees which are fees paid by an Entity to its directors. Directors' fees may be paid in addition to salary and other benefits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of general expenses not normally included in Other Operating Costs and Expenses.

+ 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 210.5-03.6)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the base fee percentage.

+ References

No definition available.

+ Details

Name:	uso_BaseFeePercentage
Namespace Prefix:	uso_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Fees Paid and Related Party Transactions [Line Items]

+ References

No definition available.

+ Details

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Namespace Prefix:	uso_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

It represent the value of license fees and other offering expenses.

+ References

No definition available.

+ Details

Name:	uso_LicenseFeesAndOtherOfferingExpenses
Namespace Prefix:	uso_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The percentage of Contractual Obligation to Pay Fee.

+ References

No definition available.

+ Details

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Namespace Prefix:	uso_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the registration fees and other offering expenses.

+ References

No definition available.

+ Details

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Namespace Prefix:	uso_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

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- Details

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X

- Details

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X

- Details

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Period Type:

X

- Details

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Namespace Prefix:
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Period Type: