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Condensed Statements of Cash Flows (Unaudited) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Cash Flows from Operating Activities: |  |  |  |  |  |
Net income (loss) | $ 19,928,292 | [1] | $ (34,910,503) | [1] | $ 260,223,463 | $ (104,569,952)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |  |  |  |
Change in unrealized (gain) loss on open commodity futures contracts |  |  |  |  | (50,188,240) | 40,293,553
Change in unrealized (gain) loss on open swap contracts |  |  |  |  | 318 | (2,295)
(Increase) decrease in dividends receivable |  |  |  |  | 57,524 | 2,109,506
(Increase) decrease in interest receivable |  |  |  |  | 772,354 | (1,549,692)
(Increase) decrease in prepaid insurance |  |  |  |  | (104,349) | (206,977)
(Increase) decrease in ETF transaction fees receivable |  |  |  |  | 1,000 | (2,000)
Increase (decrease) payable due to custody |  |  |  |  |  | (1,012,851)
Increase (decrease) in payable due to Broker |  |  |  |  | (16,866,100) | 3,272,013
Increase (decrease) in General Partner management fees payable |  |  |  |  | (101,487) | (252,765)
Increase (decrease) in professional fees payable |  |  |  |  | (774,980) | (1,665,322)
Increase (decrease) in brokerage commissions payable |  |  |  |  |  | 11,874
Increase (decrease) in directors' fees payable |  |  |  |  | 150 | (11,459)
Increase (decrease) in license fees payable |  |  |  |  | (10,139) | (22,570)
Net cash provided by (used in) operating activities |  |  |  |  | 193,009,514 | (63,608,937)
Cash Flows from Financing Activities: |  |  |  |  |  |
Addition of partnership shares |  |  |  |  | 4,468,819,514 | 2,105,890,851
Redemption of partnership shares |  |  |  |  | (4,962,437,502) | (2,462,186,767)
Net cash provided by (used in) financing activities |  |  |  |  | (493,617,988) | (356,295,916)
Net Increase (Decrease) in Cash and Cash Equivalents |  |  |  |  | (300,608,474) | (419,904,853)
Total Cash, Cash Equivalents and Equity in Trading Accounts, beginning of year |  |  |  |  | 1,463,696,515 | 1,953,896,501
Total Cash, Cash Equivalents and Equity in Trading Accounts, end of year | 1,163,088,041 |  | 1,533,991,648 |  | 1,163,088,041 | 1,533,991,648
Components of Cash, Cash Equivalents and Equity in Trading Accounts: |  |  |  |  |  |
Cash and cash equivalents | 892,937,411 |  | 1,047,250,096 |  | 892,937,411 | 1,047,250,096
Equity in Trading Accounts: |  |  |  |  |  |
Cash and cash equivalents | 270,150,630 |  | 486,741,552 |  | 270,150,630 | 486,741,552
Total Cash, Cash Equivalents and Equity in Trading Accounts | $ 1,163,088,041 |  | $ 1,533,991,648 |  | $ 1,163,088,041 | $ 1,533,991,648
[1] | General Partners’ shares outstanding and capital for the periods presented were zero.

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

X
- Definition The (increase) decrease in prepaid insurance. + References No definition available. + Details
Name: | uso_IncreaseDecreaseInPrepaidInsurances
Namespace Prefix: | uso_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of increase (decrease) in professional fees payable. + References No definition available. + Details
Name: | uso_IncreaseDecreaseInProfessionalFeesPayable
Namespace Prefix: | uso_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Net change in management fee payable. + References No definition available. + Details
Name: | uso_IncreaseDecreaseManagementFeesPayable
Namespace Prefix: | uso_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of payments to partnership redemption. + References No definition available. + Details
Name: | uso_PaymentsToPartnershipRedemption
Namespace Prefix: | uso_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration