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.

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

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

- 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

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

- 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

- 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

- 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

- Definition

The percentage of Contractual Obligation to Pay Fee.

+ References

No definition available.

+ Details

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

- 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

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=uso_UsoAndRelatedPublicFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=uso_UscfMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=uso_UsoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=us-gaap_LicensingAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2023
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Fees and expenses	$ 194,237	$ 209,743
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	$ 62,505	$ 106,213
Investor tax reporting cost			2,200,000
USO \| Forecast
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Fees and expenses			$ 699,000
Licensing Agreements
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Fee percentage	0.015%