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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fees Paid And Related Party Transactions
Ongoing registration fees and other offering expenses	$ 0	$ 1,260,041	$ 3,203,939
Fees and expenses	828,823	745,448	391,372
USO And Related Public Funds
Fees Paid And Related Party Transactions
Fees and expenses	$ 1,258,000	1,081,963	585,896
USCF
Fees Paid And Related Party Transactions
USCF management fee	0.45%
USO
Fees Paid And Related Party Transactions
Ongoing registration fees and other offering expenses	$ 0	1,260,041	3,203,939
Fees and expenses	828,823	745,448	391,372
Licensing fee incurred	384,747	446,110	512,944
Investor tax reporting cost	$ 1,779,300	$ 6,671,000	$ 2,694,975
Licensing Agreements
Fees Paid 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14)
-URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

+ 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.6)
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

+ 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

Name:	uso_FeesPaidAndRelatedPartyTransactionsLineItems
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

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

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Balance Type:
Period Type:

X

- Details

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