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Condensed Schedule of Investments (Unaudited)	Sep. 30, 2021 USD ($) contract
Market Value	$ 164,347,000
% of Partners' Capital	66.86%
Goldman Sachs Financial Square Government Fund - Institutional Shares [Member] | United States - Money Market Funds [Member] | Cash Equivalents [Member]
Shares/Principal Amount	$ 2,201,000
Market Value	$ 2,201,000
% of Partners' Capital	0.90%
Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares [Member] | United States - Money Market Funds [Member] | Cash Equivalents [Member]
Shares/Principal Amount	$ 158,500,000
Market Value	$ 158,500,000
% of Partners' Capital	64.48%
RBC U.S. Government Money Market Fund - Institutional Shares [Member] | United States - Money Market Funds [Member] | Cash Equivalents [Member]
Shares/Principal Amount	$ 3,646,000
Market Value	$ 3,646,000
% of Partners' Capital	1.48%
IceBrentCrude Oil Futures Co December 2021 Contracts Expiring October 2021 Member
Number of Contracts | contract	3,139
IceBrentCrude Oil Futures Co December 2021 Contracts Expiring October 2021 Member | United Kingdom Contracts [Member] | Open Commodity Futures Contracts - Long [Member]
Shares/Principal Amount	$ 232,349,730
Number of Contracts | contract	3,139
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts	$ 13,465,360
% of Partners' Capital	5.48%

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