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Schedule of Investments (Unaudited)
Sep. 30, 2025
USD ($)
contract
Dec. 31, 2024
USD ($)
contract
US    
Notional Amount $ 11,264,504 [1] $ 17,542,740
Number of Contracts | contract 277 [1] 515
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (814,334) [1] $ 1,115,220
% of Partners' Capital (7.80%) [1] 5.97%
US | NYMEX Natural Gas Futures NG February 2025 contracts, expiring January 2025    
Notional Amount   $ 1,507,310
Number of Contracts | contract   43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts   $ 54,880
% of Partners' Capital   0.29%
US | NYMEX Natural Gas Futures NG March 2025 contracts, expiring February 2025    
Notional Amount   $ 1,325,307
Number of Contracts | contract   43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts   $ 6,833
% of Partners' Capital   0.04%
US | NYMEX Natural Gas Futures NG April 2025 contracts, expiring March 2025    
Notional Amount   $ 1,226,637
Number of Contracts | contract   42
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts   $ 62,763
% of Partners' Capital   0.34%
US | NYMEX Natural Gas Futures NG May 2025 contracts, expiring April 2025    
Notional Amount   $ 1,299,545
Number of Contracts | contract   43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts   $ 57,965
% of Partners' Capital   0.31%
US | NYMEX Natural Gas Futures NG June 2025 contracts, expiring May 2025    
Notional Amount   $ 1,353,278
Number of Contracts | contract   43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts   $ 80,772
% of Partners' Capital   0.43%
US | NYMEX Natural Gas Futures NG July 2025 contracts, expiring June 2025    
Notional Amount   $ 1,475,965
Number of Contracts | contract   43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts   $ 38,495
% of Partners' Capital   0.21%
US | NYMEX Natural Gas Futures NG August 2025 contracts, expiring July 2025    
Notional Amount   $ 1,416,560
Number of Contracts | contract   43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts   $ 114,240
% of Partners' Capital   0.61%
US | NYMEX Natural Gas Futures NG September 2025 contracts, expiring August 2025    
Notional Amount   $ 1,406,475
Number of Contracts | contract   43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts   $ 116,587
% of Partners' Capital   0.62%
US | NYMEX Natural Gas Futures NG October 2025 contracts, expiring September 2025    
Notional Amount   $ 1,404,005
Number of Contracts | contract   43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts   $ 152,165
% of Partners' Capital   0.82%
US | NYMEX Natural Gas Futures NG November 2025 contracts, expiring October 2025    
Notional Amount $ 843,168 $ 1,531,437
Number of Contracts | contract 23 43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (83,478) $ 148,143
% of Partners' Capital (0.80%) 0.79%
US | NYMEX Natural Gas Futures NG December 2025 contracts, expiring November 2025    
Notional Amount $ 958,801 $ 1,695,166
Number of Contracts | contract 23 43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (66,401) $ 181,354
% of Partners' Capital (0.64%) 0.97%
US | NYMEX Natural Gas Futures NG January 2026 contracts, expiring December 2025    
Notional Amount $ 1,046,700 $ 1,901,055
Number of Contracts | contract 23 43
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (85,990) $ 101,023
% of Partners' Capital (0.82%) 0.54%
US | NYMEX Natural Gas Futures NG February 2026 contracts, expiring January 2026    
Notional Amount $ 1,039,169  
Number of Contracts | contract 23  
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (123,998)  
% of Partners' Capital (1.19%)  
US | NYMEX Natural Gas Futures NG March 2026 contracts, expiring February 2026    
Notional Amount $ 971,161  
Number of Contracts | contract 24  
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (101,642)  
% of Partners' Capital (0.97%)  
US | NYMEX Natural Gas Futures NG April 2026 contracts, expiring March 2026    
Notional Amount $ 908,807  
Number of Contracts | contract 23  
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (106,107)  
% of Partners' Capital (1.02%)  
US | NYMEX Natural Gas Futures NG May 2026 contracts, expiring April 2026    
Notional Amount $ 833,403  
Number of Contracts | contract 23  
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (24,263)  
% of Partners' Capital (0.23%)  
US | NYMEX Natural Gas Futures NG June 2026 contracts, expiring May 2026    
Notional Amount $ 933,662  
Number of Contracts | contract 23  
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (85,652)  
% of Partners' Capital (0.82%)  
US | NYMEX Natural Gas Futures NG July 2026 contracts, expiring June 2026    
Notional Amount $ 970,674  
Number of Contracts | contract 23  
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (77,124)  
% of Partners' Capital (0.74%)  
US | NYMEX Natural Gas Futures NG August 2026 contracts, expiring July 2026    
Notional Amount $ 988,559  
Number of Contracts | contract 23  
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ (85,809)  
% of Partners' Capital (0.82%)  
US | NYMEX Natural Gas Futures NG September 2026 contracts, expiring August 2026    
Notional Amount $ 876,900  
Number of Contracts | contract 23  
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ 15,960  
% of Partners' Capital 0.15%  
US | NYMEX Natural Gas Futures NG October 2026 contracts, expiring September 2026    
Notional Amount $ 893,500  
Number of Contracts | contract 23  
Fair Value/Unrealized Gain (Loss) on Open Commodity Contracts $ 10,170  
% of Partners' Capital 0.10%  
Cash Equivalents | United States - Money Market Funds    
Market Value $ 7,000,000 $ 11,000,000
% of Partners' Capital 67.02% 58.91%
Cash Equivalents | United States - Money Market Funds | Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares, 4.43%    
Shares/Principal Amount [2]   $ 11,000,000
Market Value [2]   $ 11,000,000
% of Partners' Capital [2]   58.91%
Cash Equivalents | United States - Money Market Funds | Dreyfus Institutional Preferred Government Money Market Fund - Institutional Shares, 4.29%    
Shares/Principal Amount [3] $ 3,000,000  
Market Value [3] $ 3,000,000  
% of Partners' Capital [3] 28.72%  
Cash Equivalents | United States - Money Market Funds | Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares, 4.23%    
Shares/Principal Amount [3] $ 4,000,000  
Market Value [3] $ 4,000,000  
% of Partners' Capital [3] 38.30%  
[1] Collateral amounted to $1,667,644 on open commodity futures contracts.
[2] Reflects the 7-day yield at December 31, 2024.
[3] Reflects the 7-day yield at September 30, 2025.