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Condensed Schedule of Investments (Unaudited)
Sep. 30, 2020
USD ($)
contract
United States - Money Market Funds [Member] | Cash Equivalents [Member]  
Market Value $ 30,347,000
% of Partners' Capital 8.49%
Fidelity Investments Money Market Funds - Government Portfolio [Member] | United States - Money Market Funds [Member] | Cash Equivalents [Member]  
Shares/Principal Amount $ 201,000 [1]
Market Value $ 201,000 [1]
% of Partners' Capital 0.06% [1]
Goldman Sachs Financial Square Funds - Government Fund - Class FS [Member] | United States - Money Market Funds [Member] | Cash Equivalents [Member]  
Shares/Principal Amount $ 20,086,000 [1]
Market Value $ 20,086,000 [1]
% of Partners' Capital 5.62% [1]
RBC U.S. Government Money Market Fund - Institutional Share Class [Member] | United States - Money Market Funds [Member] | Cash Equivalents [Member]  
Shares/Principal Amount $ 10,060,000 [1]
Market Value $ 10,060,000 [1]
% of Partners' Capital 2.81% [1]
ICE Brent Crude Oil Futures CO December 2020 contracts, expiring October 2020 | United Kingdom Contracts [Member] | Open Commodity Futures Contracts - Long [Member]  
Shares/Principal Amount $ 363,859,900 [2]
Number of Contracts | contract 8,449 [2]
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (6,467,200) [2]
% of Partners' Capital (1.81%) [2]
[1] Reflects the 7-day yield at September 30, 2020
[2] Collateral amounted to $66,696,908 on open commodity futures contracts.