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Schedule of Investments (Unaudited)
 9 Months Ended 12 Months Ended
Sep. 30, 2025
USD ($)
contract
Dec. 31, 2024
USD ($)
contract
Notional Amount $ 124,531,046 $ 218,659,990 [1]
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts 1,086,363 80,696,279
Fair Value/Open Commodity Swap Contracts 124,530,076 218,657,785 [1]
Unrealized Gain (Loss) on Commodity Swap Contracts $ (970) [2] $ (2,205) [1],[3]
SOC GEN SGIXCNG1 09262025Index    
% Fund Pays, Counter party [4] 0.40%  
Payment Frequency [4] Monthly  
Expiration Date [4] Mar. 26, 2026  
Notional Amount [4] $ 63,268,835  
Fair Value/Open Commodity Swap Contracts [4] 63,268,150  
Unrealized Gain (Loss) on Commodity Swap Contracts [2],[4] $ (685)  
Scotia SNOVNG1 08292025Index    
% Fund Pays, Counter party [4] 0.17%  
Payment Frequency [4] Monthly  
Expiration Date [4] Feb. 27, 2026  
Notional Amount [4] $ 61,262,211  
Fair Value/Open Commodity Swap Contracts [4] 61,261,926  
Unrealized Gain (Loss) on Commodity Swap Contracts [2],[4] $ (285)  
Scotia SNOVNG 108202024 Index    
% Fund Pays, Counter party [4]   0.17%
Payment Frequency [4]   monthly
Expiration Date [4]   Feb. 28, 2025
Notional Amount [4]   $ 107,293,519
Fair Value/Open Commodity Swap Contracts [4]   107,292,519
Unrealized Gain (Loss) on Commodity Swap Contracts [3],[4]   $ (1,000)
SOC GEN SGIXCNG 109272024 Index    
% Fund Pays, Counter party [4]   0.40%
Payment Frequency [4]   monthly
Expiration Date [4]   Mar. 27, 2025
Notional Amount [4]   $ 111,366,471
Fair Value/Open Commodity Swap Contracts [4]   111,365,266
Unrealized Gain (Loss) on Commodity Swap Contracts [3],[4]   (1,205)
NYMEX Natural Gas August 2023 contracts, expiring July 2023    
Number of Contracts | contract 15,138  
Open Commodity Futures Contracts - Long | United States | NYMEX Natural Gas Futures NG November 2025 contracts, expiring October 2025    
Notional Amount $ 498,921,777  
Number of Contracts | contract 15,138  
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts $ 1,086,363  
% of Partners' Capital 0.17%  
Open Commodity Futures Contracts - Long | United States | NYMEX Natural Gas Futures NG February 2025 contracts, expiring January 2025    
Notional Amount [5]   $ 444,599,191
Number of Contracts | contract [5]   14,459
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts [5]   $ 80,696,279
% of Partners' Capital [5]   10.85%
Cash Equivalents | United States    
Market Value $ 305,950,000 $ 532,370,156
% of Partners' Capital 48.99% 71.58%
Cash Equivalents | United States | US Treasury Securities | U.S. Treasury Bills 4.39%, 2/27/2025    
Shares/Principal Amount   $ 11,500,000
Market Value   $ 11,420,156
% of Partners' Capital   1.54%
Cash Equivalents | United States | Money Market Funds    
Market Value   $ 520,950,000
% of Partners' Capital   70.04%
Cash Equivalents | United States | Money Market Funds | Dreyfus Institutional Preferred Government Money Market Fund - Institutional Shares, 4.09%    
Shares/Principal Amount [6] $ 130,000,000  
Market Value [6] $ 130,000,000  
% of Partners' Capital [6] 20.82%  
Cash Equivalents | United States | Money Market Funds | Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares    
Shares/Principal Amount $ 175,950,000 [6] $ 520,950,000 [7]
Market Value $ 175,950,000 [6] $ 520,950,000 [7]
% of Partners' Capital 28.17% [6] 70.04% [7]
[1] ˄     Collateral amounted to $37,100,156 on open OTC commodity swap contracts.
[2] Reflects the value at reset date of September 30, 2025.
[3] Reflects the value at reset date of December 31, 2024.
[4] Custom index comprised of a basket of underlying instruments.
[5] Collateral amounted to $46,487,832 on open commodity futures contracts
[6] Reflects the 7-day yield at September 30, 2025.
[7] Reflects the 7-day yield at December 31, 2024.