Document and Entity Information Document Type Document Quarterly Report Document Period End Date Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag Statements of Financial Condition Statement [Table] Statement [Table] Statement [Line Items] Statements Assets [Abstract] Assets Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and cash equivalents (at cost $34,762,105 and $31,775,871, respectively) (Notes 2 and 5) Financial Instruments, Owned, at Fair Value, by Type, Alternative [Abstract] Equity in trading accounts: Restricted Cash and Cash Equivalents, Current Cash and cash equivalents (at cost $7,015,029 and $7,949,567, respectively) Cash and cash equivalents Amount of unrealized gain (loss) on open commodity futures contracts. Unrealized Gain Loss on Open Commodity Futures Contracts Current and Noncurrent Unrealized gain (loss) on open commodity futures contracts Dividends Receivable Dividends receivable Interest Receivable Interest receivable Prepaid Insurance Prepaid insurance Assets Total Assets Partners' Capital Notes [Abstract] Liabilities and Partners' Capital Management Fee Payable General Partner management fees payable (Note 3) Accrued Professional Fees Professional fees payable Carrying amount of the unpaid portion of the fee payable to the managing member or general partner for management of the fund or trust. Directors Fees Payable Directors' fees payable License fees payable Current and Noncurrent. License Fees Payable Current And Noncurrent License fees payable Liabilities, Total Total Liabilities Commitments And Contingencies Commitments and Contingencies (Notes 3, 4 & 5) Partners Capital [Abstract] Partners' Capital General Partners Capital Account General Partners Limited Partners Capital Account Limited Partners Partners Capital Balances at end of period Balances at beginning of period Total Partners' Capital Liabilities And Stockholders Equity Total Liabilities and Partners' Capital Limited Partners Capital Account Units Outstanding Limited Partners' shares outstanding Number of net asset value per unit. Net Asset Value Per Unit Net asset value, end of period Net asset value, beginning of period Net asset value per share Net asset value per share Market value per unit. Market Value Per Unit Market value per share Statement - Schedule of Investments [Abstract] Schedule of Investments Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash Equivalents Cash Equivalents Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Domain] Open Futures Contracts, Long Open Commodity Futures Contracts - Long Open Commodity Futures Contracts - Long Geographical [Axis] Geographical [Domain] UNITED STATES United States Contracts Information by investment secondary categorization. Investment Secondary Categorization 1 [Axis] Investments under by secondary categorization. Investments By Secondary Categorization 1 [Domain] United States Money Market Funds United States Money Market Funds Financial Instrument [Axis] Financial Instruments [Domain] Represents the information pertaining to NYMEX WTI Crude Oil Futures CL February 2026 contracts, expiring January 2026. NYMEX WTI Crude Oil Futures CL February 2026 contracts, expiring January 2026 [Member] NYMEX WTI Crude Oil Futures CL February 2026 contracts, expiring January 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL March 2026 contracts, expiring February 2026. NYMEX WTI Crude Oil Futures CL March 2026 contracts, expiring February 2026 [Member] NYMEX WTI Crude Oil Futures CL March 2026 contracts, expiring February 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL April 2026 contracts, expiring March 2026. NYMEX WTI Crude Oil Futures CL April 2026 contracts, expiring March 2026 [Member] NYMEX WTI Crude Oil Futures CL April 2026 contracts, expiring March 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL May 2026 contracts, expiring April 2026. NYMEX WTI Crude Oil Futures CL May 2026 contracts, expiring April 2026 [Member] NYMEX WTI Crude Oil Futures CL May 2026 contracts, expiring April 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL June 2026 contracts, expiring May 2026. NYMEX WTI Crude Oil Futures CL June 2026 contracts, expiring May 2026 [Member] NYMEX WTI Crude Oil Futures CL June 2026 contracts, expiring May 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL July 2026 contracts, expiring June 2026. NYMEX WTI Crude Oil Futures CL July 2026 contracts, expiring June 2026 [Member] NYMEX WTI Crude Oil Futures CL July 2026 contracts, expiring June 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL August 2026 contracts, expiring July 2026. NYMEX WTI Crude Oil Futures CL August 2026 contracts, expiring July 2026 [Member] NYMEX WTI Crude Oil Futures CL August 2026 contracts, expiring July 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL September 2026 contracts, expiring August 2026. NYMEX WTI Crude Oil Futures CL September 2026 contracts, expiring August 2026 [Member] NYMEX WTI Crude Oil Futures CL September 2026 contracts, expiring August 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL October 2026 contracts, expiring September 2026. NYMEX WTI Crude Oil Futures CL October 2026 contracts, expiring September 2026 [Member] NYMEX WTI Crude Oil Futures CL October 2026 contracts, expiring September 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL November 2026 contracts, expiring October 2026. NYMEX WTI Crude Oil Futures CL November 2026 contracts, expiring October 2026 [Member] NYMEX WTI Crude Oil Futures CL November 2026 contracts, expiring October 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL December 2026 contracts, expiring November 2026. NYMEX WTI Crude Oil Futures CL December 2026 contracts, expiring November 2026 [Member] NYMEX WTI Crude Oil Futures CL December 2026 contracts, expiring November 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL January 2027 contracts, expiring December 2026. NYMEX WTI Crude Oil Futures CL January 2027 contracts, expiring December 2026 [Member] NYMEX WTI Crude Oil Futures CL January 2027 contracts, expiring December 2026 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL February 2027 contracts, expiring January 2027. NYMEX WTI Crude Oil Futures CL February 2027 contracts, expiring January 2027 [Member] NYMEX WTI Crude Oil Futures CL February 2027 contracts, expiring January 2027 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL March 2027 contracts, expiring February 2027. NYMEX WTI Crude Oil Futures CL March 2027 contracts, expiring February 2027 [Member] NYMEX WTI Crude Oil Futures CL March 2027 contracts, expiring February 2027 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL April 2027 contracts, expiring March 2027. NYMEX WTI Crude Oil Futures CL April 2027 contracts, expiring March 2027 [Member] NYMEX WTI Crude Oil Futures CL April 2027 contracts, expiring March 2027 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL May 2027 contracts, expiring April 2027. NYMEX WTI Crude Oil Futures CL May 2027 contracts, expiring April 2027 [Member] NYMEX WTI Crude Oil Futures CL May 2027 contracts, expiring April 2027 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL June 2027 contracts, expiring May 2027. NYMEX WTI Crude Oil Futures CL June 2027 contracts, expiring May 2027 [Member] NYMEX WTI Crude Oil Futures CL June 2027 contracts, expiring May 2027 Represents the information pertaining to NYMEX WTI Crude Oil Futures CL July 2027 contracts, expiring June 2027. NYMEX WTI Crude Oil Futures CL July 2027 contracts, expiring June 2027 [Member] NYMEX WTI Crude Oil Futures CL July 2027 contracts, expiring June 2027 Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] NA Dreyfus Institutional Preferred Government Money Market Fund - Institutional Shares Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares, 4.43% Investment Owned, at Fair Value Notional Amount Investment Owned Balance Contracts Number of Contracts Unrealized gain (loss) on open commodity futures contracts. Unrealized Gain Loss On Open Commodity Futures Contracts Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts Investment Owned Balance Principal Amount Shares/Principal Amount Investment Owned Underlying Face Amount At Market Value Market Value Percentage of Partners Capital Percentage Of Partners Capital % of Partners' Capital Debt Instrument Interest Rate Stated Percentage Interest rate The collateral amount on open future contracts. Collateral Amount On Open Futures Contracts Collateral amount on open future contracts Statements of Operations Revenues [Abstract] Income Gain (Loss) On Commodity Futures [Abstract] Gain Loss On Commodity Futures [Abstract] Gain (loss) on trading of commodity futures contracts: Gain (Loss) on Sale of Derivatives Realized gain (loss) on closed commodity futures contracts Realized gain (loss) on closed commodity futures contracts Unrealized Gain (Loss) on Derivatives Change in unrealized gain (loss) on open commodity futures contracts Dividend Income Operating Dividend income Interest Income Operating Interest income Other Income ETF transaction fees Revenues Total Income (Loss) Operating Expenses [Abstract] Expenses Management Fee Expense General Partner management fees (Note 3) Professional Fees Professional fees Floor Brokerage Exchange And Clearance Fees Brokerage commissions Total commissions accrued to brokers Noninterest Expense Directors Fees Directors' fees and insurance Estimated directors' fees and expenses It represent the value of license fees and other offering expenses. License Fees And Other Offering Expenses License fees Licensing fee incurred Total Expenses. Total Expenses Total Expenses Net Income (Loss) Net income (loss) Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax Net Income (Loss) per limited partner share Net Income (Loss), Net of Tax, Per Outstanding Limited Partnership Unit, Diluted, Total Net Income (Loss) per weighted average limited partner share Weighted Average Limited Partnership Units Outstanding Weighted average limited partner shares outstanding Statements of Changes in Partners' Capital Partner Capital Components [Axis] Partner Capital Components [Domain] Limited Partners Limited Partners Partners' Capital Account, Contributions Addition of 200,000, 50,000, 500,000 and 100,000 partnership shares, respectively Partners Capital Account Redemptions Redemption of (550,000), (100,000), (700,000) and (200,000) partnership shares, respectively Partners' Capital Account, Units, Contributed Addition of partnership shares Partners Capital Account Units Redeemed Redemption of partnership shares Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities [Abstract] Cash Flows from Operating Activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Unrealized Gain Loss On Derivatives And Commodity Contracts Change in unrealized (gain) loss on open commodity futures contracts Change in unrealized gain (loss) on open commodity futures contracts Increase Decrease In Dividends Receivable (Increase) decrease in dividends receivable Increase (Decrease) in Accrued Interest Receivable, Net (Increase) decrease in interest receivable Increase (Decrease) in Prepaid Insurance (Increase) decrease in prepaid insurance Increase (Decrease) Management Fees Payable Increase Decrease Management Fees Payable Increase (decrease) in General Partner management fees payable Increase (Decrease) in Professional Fee Payable Increase (decrease) in professional fees payable Increase (Decrease) in Due to Officers and Stockholders Increase (decrease) in directors' fees payable Increase (Decrease) in License Fees Payable Increase Decrease In License Fees Payable Increase (decrease) in license fees payable Net Cash Provided by (Used in) Operating Activities Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash Flows from Financing Activities: Proceeds From Partnership Contribution Addition of partnership shares Payments To Partnership Redemption Payments To Partnership Redemption Redemption of partnership shares Net Cash Provided by (Used in) Financing Activities Net cash provided by (used in) financing activities Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Net Increase (Decrease) in Cash and Cash Equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Total Cash, Cash Equivalents and Equity in Trading Accounts, end of period Total Cash, Cash Equivalents and Equity in Trading Accounts, beginning of period No definition available. Components of Cash, and Cash Equivalents, and Equity in Trading Accounts Components of Cash, Cash Equivalents and Equity in Trading Accounts: Equity in Trading Accounts: Equity in Trading Accounts: Represents the amount of cash and cash equivalents in equity in trading accounts. Cash and Cash Equivalents Total Cash, Cash Equivalents and Equity in Trading Accounts ORGANIZATION AND BUSINESS Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] ORGANIZATION AND BUSINESS SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS Fees Paid and Related Party Transactions Disclosure [Text Block] Fees Paid And Related Party Transactions Disclosure [Text Block] FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS CONTRACTS AND AGREEMENTS Long-term Contracts or Programs Disclosure [Text Block] CONTRACTS AND AGREEMENTS FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES Financial Instruments Disclosure [Text Block] FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES No definition available. FINANCIAL HIGHLIGHTS Additional Financial Information Disclosure [Text Block] FINANCIAL HIGHLIGHTS FAIR VALUE OF FINANCIAL INSTRUMENTS Fair Value Disclosures [Text Block] FAIR VALUE OF FINANCIAL INSTRUMENTS SUBSEQUENT EVENTS Subsequent Events [Text Block] SUBSEQUENT EVENTS Basis of Presentation and Significant Accounting Policies [Text Block] Basis of Presentation Revenue Recognition, Policy [Policy Text Block] Revenue Recognition Income Tax, Policy [Policy Text Block] Income Taxes Shares Subject to Mandatory Redemption, Changes in Redemption Value, Policy [Policy Text Block] Creations and Redemptions Incentive Distribution Policy, Managing Member or General Partner, Description [Policy Text Block] Partnership Capital and Allocation of Partnership Income and Losses Disclosure of accounting policy for net asset value. Net Asset Value [Policy Text Block] Calculation of Per Share NAV Earnings Per Share, Policy [Policy Text Block] Net Income (Loss) Per Share Cash and Cash Equivalents, Policy [Policy Text Block] Cash Equivalents Use of Estimates, Policy [Policy Text Block] Use of Estimates New Accounting Pronouncements, Policy [Policy Text Block] Recently Issued Accounting Pronouncement Tabular disclosure of fees earned by the broker commission. Brokerage Commissions [Table Text Block] Schedule of brokerage commissions Tabular disclosure of per unit performance data and other supplemental financial data. Per Unit Performance Data And Other Supplemental Financial Data Table [Text Block] Schedule of per share performance data and other supplemental financial data Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. Fair Value Asset And Liabilities Measured On Recurring And Nonrecurring Basis [Table Text Block] Schedule of valuation of securities using fair value hierarchy Schedule Of Derivative Instruments In Statement Of Financial Position Fair Value [Text Block] Schedule of fair value of derivative instruments Schedule Of Derivative Instruments Gain Loss In Statement Of Financial Performance [Text Block] Schedule of effect of derivative instruments Organization, Consolidation and Presentation of Financial Statements Disclosure [Table] Organization Consolidation And Presentation Of Financial Statements Disclosure [Table] Organization, Consolidation and Presentation of Financial Statements Disclosure [Table] Represents the information relating to creation baskets. Creation Baskets [Member] Creation Baskets Range [Axis] Range [Domain] Minimum [Member] Minimum Maximum [Member] Maximum Organization, Consolidation and Presentation of Financial Statements Disclosure. Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items] ORGANIZATION AND BUSINESS The successive valuation days used in the measurement of average daily percentage change in net asset value. Investment Objective, Successive Valuation Days Investment objective successive valuation days The allowed range of change in the daily percentage change in NAV of the company compared to the benchmark of futures contract. Range Of Allowed Change In NAV Compared To Benchmark, Percentage Range of allowed change in nav compared to benchmark, percentage Threshold adjustment on average daily percentage change in price of the derivatives. Investment Objective, Threshold Adjustment On Average Daily Percentage Change In Price Investment objective threshold adjustment on average daily percentage change in price Number of oil futures contracts held during period. Number Of Oil Futures Contracts Held During Period Number of oil futures contracts held Number of shares per basket. Number Of Units Per Basket Number of shares per basket Number of shares per basket Fee Paid Per Order Fee Paid Per Order Fee paid by authorized purchasers for each order they place to create one or more creation baskets or to redeem one or more baskets Number of shares registered. Number Of Registered Units Number of registered shares Number of shares issued during the period. Units Issued During Period Units New Issues Number of shares issued Amount received from the issuance of new shares during the period. Units Issued During Period Value New Issues Value of shares issued Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant Accounting Policies [Table] Partner Type [Axis] Partner Type of Partners' Capital Account, Name [Domain] General Partner [Member] General partner Significant Accounting Policies. Significant Accounting Policies [Line Items] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Income tax interest expense or penalties Common Stock, Shares, Outstanding Shares outstanding Schedule Of Related Party Transactions By Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Investment Type [Axis] Investment Type Categorization [Domain] Represents information relating to fund trust. Fund Trusts [Member] USL and the Related Public Funds Scenario [Axis] Scenario, Unspecified [Domain] Scenario Forecast [Member] Scenario Forecast Fees Paid and Related Party Transactions [Line Items] Fees Paid And Related Party Transactions [Line Items] FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS Percentage of Management Fee In Average Daily Total Net Assets. Percentage of Management Fee in Average Daily Total Net Assets Percentage of management fee in average daily total net assets Investment Company, Registration Expense Registration fees Percentage of base fee. Base Fee Percentage Fee percentage Other General Expense Investor tax reporting cost Percentage of average daily net assets. Percentage Of Average Daily Net Assets Total commissions as annualized percentage of average total net assets Long Duration Contracts Assumptions By Product And Guarantee [Table] Long-Duration Contracts, Assumptions, by Product and Guarantee [Table] Type Of Arrangement [Axis] Arrangements and Non-arrangement Transactions [Domain] Represents the information relating to marketing agreement. Marketing Agreement [Member] Marketing Agreement Long Duration Contracts Assumptions By Product And Guarantee [Line Items] CONTRACTS AND AGREEMENTS It's represented of percentage of total net assets. Percentage Of Total Net Assets Percentage of total net assets Amount of commissions paid. Commissions Paid Commissions per round-turn trade, including applicable exchange and NFA fees for Oil Futures Contracts and options on Oil Futures Contracts Carrying Amounts and Fair Values of Financial Instruments or Liabilities [Table] Carrying Amounts And Fair Values Of Financial Instruments Or Liabilities [Table] Carrying Amounts and Fair Values of Financial Instruments or Liabilities [Table] Future [Member] Futures Future contracts Carrying Amounts and Fair Values of Financial Instruments or Liabilities [Line Items] Carrying Amounts And Fair Values Of Financial Instruments Or Liabilities [Line Items] FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES Money Market Funds, at Carrying Value Cash investments in money market funds The cash deposits and investments made in treasuries which are held with custodian and futures commission merchant reported as of the period. Cash deposits and Investments In Treasuries Cash deposit and investment in treasury Derivative, Notional Amount Open future contract notional value Increase Decrease In Partners Capital [Roll Forward] Per Share Operating Performance: Total income (loss), per unit. Total Income Loss Per Unit Total income (loss) Total expenses, per unit. Total Expenses Per Unit Total expenses Increase (decrease) in net asset value per unit. Increase Decrease In Net Asset Value Per Unit Net increase (decrease) in net asset value Rate of return on average asset. Rate Of Return On Average Asset Total Return No definition available. Average Net Assets [Abstract] Ratios to Average Net Assets Percentage of total revenue. Percentage Of Total Revenue Total income (loss) Management incentive fee percentage. Management Incentive Fee Percentage Management fees Expenses, excluding management fee percentage. Expenses Excluding Management Fee Percentage Total expenses excluding management fees Percentage of Consolidated Net Income (Loss). Percentage Of Consolidated Net Income Loss Net income (loss) Schedule Of Trading Securities And Other Trading Assets [Table] Schedule of Trading Securities and Other Trading Assets [Table] Fair Value By Fair Value Hierarchy Level [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 [Member] Level I Short-Term Investments [Member] Short-Term Investments Schedule Of Trading Securities And Other Trading Assets [Line Items] FAIR VALUE OF FINANCIAL INSTRUMENTS Investments, Fair Value Disclosure Investments fair value disclosure Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Commodity Contracts [Member] Commodity Contracts Concentration Risk By Benchmark [Axis] Concentration Risk Benchmark [Domain] Assets, Total [Member] Assets Derivatives Fair Value [Line Items] FAIR VALUE OF FINANCIAL INSTRUMENTS Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Derivatives not Accounted for as Hedging Instruments Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Represents the information relating to closed positions. Closed Positions [Member] Realized gain (loss) on closed positions Represents the information relating to open positions. Open Position [Member] Change in unrealized gain (loss) on open positions Derivative Instruments Gain Loss [Line Items] FAIR VALUE OF FINANCIAL INSTRUMENTS Rule 10b51 Arr Modified [Flag]. Rule 10b51 Arr Modified [Flag] Rule 10b5-1 Arrangement Modified Non Rule 10b51 Arr Modified [Flag]. Non Rule 10b51 Arr Modified [Flag] Non Rule 10b5-1 Arrangement Modified