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v3.22.2.2

Condensed Statements of Cash Flows (Unaudited) - USD ($) | 9 Months Ended
--- | ---
Sep. 30, 2022 | Sep. 30, 2021
Cash Flows from Operating Activities: |  |  |
Net income (loss) |  | $ 627,810,614 | $ 1,510,372,989
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 |  | 332,240,105 | 73,910,705
Change in unrealized (gain) loss on open swap contracts |  | 1,940 | 0
(Increase) decrease in dividends receivable |  | (1,984,292) | (30,850)
(Increase) decrease in interest receivable |  | (1,481,919) | 100,639
(Increase) decrease in prepaid insurance* | [1] | (157,872) | (270,588)
(Increase) decrease in prepaid registration fees |  | 0 | 1,260,041
(Increase) decrease in ETF transaction fees receivable |  | 0 | 2,000
Increase (decrease) in payable due to Broker |  | 35,838,431 | 68,083,278
Increase (decrease) in General Partner management fees payable |  | (163,831) | (440,244)
Increase (decrease) in professional fees payable |  | (1,556,249) | 184,002
Increase (decrease) in brokerage commissions payable |  | (91,372) | (85,947)
Increase (decrease) in directors' fees payable* | [1] | (2,599) | (5,617)
Increase (decrease) in license fees payable |  | (21,335) | (35,430)
Net cash provided by (used in) operating activities |  | 990,431,621 | 1,653,044,978
Cash Flows from Financing Activities: |  |  |
Addition of partnership shares |  | 2,452,643,781 | 664,230,493
Redemption of partnership shares |  | (3,505,170,083) | (3,220,487,860)
Net cash provided by (used in) financing activities |  | (1,052,526,302) | (2,556,257,367)
Net Increase (Decrease) in Cash and Cash Equivalents |  | (62,094,681) | (903,212,389)
Total Cash, Cash Equivalents and Equity in Trading Accounts, beginning of period |  | 2,264,418,396 | 3,309,238,139
Total Cash, Cash Equivalents and Equity in Trading Accounts, end of period |  | 2,202,323,715 | 2,406,025,750
Components of Cash and Cash Equivalents: |  |  |
Cash and cash equivalents |  | 963,555,399 | 1,769,454,915
Equity in Trading Accounts: |  |  |
Cash and cash equivalents |  | 1,238,768,316 | 636,570,835
Total Cash, Cash Equivalents and Equity in Trading Accounts |  | $ 2,202,323,715 | $ 2,406,025,750
[1] | Certain prior year amounts have been reclassified for consistency with the current presentation.

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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 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