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Condensed Schedule of Investments (Unaudited)
Jun. 30, 2022
USD ($)
contract
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts $ (134,883,200)
Market Value $ 336,150,000
% of Partners' Capital 81.04%
Open Commodity Futures Contracts, Long | United States | NYMEX Natural Gas NG August 2022 Contracts , Expiring July 2022 [Member]  
Notional Amount $ 549,656,480 [1]
Number of Contracts | contract 7,647 [1]
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts $ (134,883,200) [1]
% of Partners' Capital (32.52%) [1]
Cash Equivalents [Member] | United States | Money Market Funds [Member] | Goldman Sachs Financial Square Government Fund Institutional Shares [Member]  
Shares/Principal Amount $ 42,500,000 [2]
Market Value $ 42,500,000 [2]
% of Partners' Capital 10.25% [2]
Cash Equivalents [Member] | United States | Money Market Funds [Member] | Morgan Stanley Institutional Liquidity Funds Government Portfolio Institutional Shares [Member]  
Shares/Principal Amount $ 152,400,000 [2]
Market Value $ 152,400,000 [2]
% of Partners' Capital 36.74% [2]
Cash Equivalents [Member] | United States | Money Market Funds [Member] | Dreyfus Institutional Preferred Government Money Market Fund [Member]  
Shares/Principal Amount $ 141,250,000 [2]
Market Value $ 141,250,000 [2]
% of Partners' Capital 34.05% [2]
[1] Collateral amounted to $206,283,729 on open commodity futures contracts
[2] Reflects the 7-day yield at June 30, 2022.