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Schedule of Investments	Jun. 30, 2021 USD ($) contract
Open Commodity Futures Contracts - Long [Member] | United States [Member]
Notional Amount	$ 8,240,914
Number of Contracts | contract	291
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 1,738,576
% of Partners' Capital	17.42%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG August 2021 contracts, expiring July 2021 [Member]
Notional Amount	$ 664,967
Number of Contracts | contract	25
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 247,533
% of Partners' Capital	2.48%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG September 2021 contracts, expiring August 2021 [Member]
Notional Amount	$ 660,416
Number of Contracts | contract	24
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 209,344
% of Partners' Capital	2.10%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG October 2021 contracts, expiring September 2021 [Member]
Notional Amount	$ 686,463
Number of Contracts | contract	24
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 182,097
% of Partners' Capital	1.82%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG November 2021 contracts, expiring October 2021
Notional Amount	$ 709,179
Number of Contracts | contract	24
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 168,741
% of Partners' Capital	1.69%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG December 2021 contracts, expiring November 2021
Notional Amount	$ 747,691
Number of Contracts | contract	24
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 150,629
% of Partners' Capital	1.51%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG January 2022 contracts, expiring December 2021
Notional Amount	$ 740,201
Number of Contracts | contract	24
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 173,479
% of Partners' Capital	1.74%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG February 2022 contracts, expiring January 2022
Notional Amount	$ 777,710
Number of Contracts | contract	25
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 153,540
% of Partners' Capital	1.54%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG March 2022 contracts, expiring February 2022
Notional Amount	$ 728,210
Number of Contracts | contract	24
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 108,910
% of Partners' Capital	1.09%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG April 2022 contracts, expiring March 2022
Notional Amount	$ 619,657
Number of Contracts | contract	25
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 129,843
% of Partners' Capital	1.30%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG May 2022 contracts, expiring April 2022
Notional Amount	$ 604,664
Number of Contracts | contract	24
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 95,416
% of Partners' Capital	0.95%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG June 2022 contracts, expiring May 2022
Notional Amount	$ 622,856
Number of Contracts | contract	24
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 83,464
% of Partners' Capital	0.84%
Open Commodity Futures Contracts - Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG July 2022 contracts, expiring June 2022
Notional Amount	$ 678,900
Number of Contracts | contract	24
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts	$ 35,580
% of Partners' Capital	0.36%
Cash Equivalents [Member] | United States Money Market Funds [Member]
Market Value	$ 7,000,000
% of Partners' Capital	70.15%
Cash Equivalents [Member] | United States Money Market Funds [Member] | Goldman Sachs Financial Square Government Fund - Institutional Shares, 0.03%
Principal Amount	$ 6,000,000
Market Value	$ 6,000,000
% of Partners' Capital	60.13%
Cash Equivalents [Member] | United States Money Market Funds [Member] | RBC U.S. Government Money Market Fund - Institutional Shares 0.03%
Principal Amount	$ 1,000,000
Market Value	$ 1,000,000
% of Partners' Capital	10.02%

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