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Schedule of Investments | Dec. 31, 2017 USD ($) Contracts | Dec. 31, 2016 USD ($) Contracts
--- | --- | ---
United States [Member] | Money Market Funds [Member] |  |  |  |
Market Value | $ 2,500,000 |  | $ 5,000,000 |
% of Partners' Capital | 30.00% |  | 30.40% |
United States [Member] | Fidelity Investments Money Market Funds - Government Portfolio [Member] | Money Market Funds [Member] |  |  |  |
Principal Amount | $ 1,000,000 |  | $ 2,000,000 |
Market Value | $ 1,000,000 |  | $ 2,000,000 |
% of Partners' Capital | 12.00% |  | 12.16% |
United States [Member] | Goldman Sachs Financial Square Funds - Government Fund - Class FS [Member] | Money Market Funds [Member] |  |  |  |
Principal Amount | $ 1,000,000 |  | $ 1,000,000 |
Market Value | $ 1,000,000 |  | $ 1,000,000 |
% of Partners' Capital | 12.00% |  | 6.08% |
United States [Member] | Morgan Stanley Institutional Liquidity Funds - Government Portfolio [Member] | Money Market Funds [Member] |  |  |  |
Principal Amount | $ 500,000 |  | $ 2,000,000 |
Market Value | $ 500,000 |  | $ 2,000,000 |
% of Partners' Capital | 6.00% |  | 12.16% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] |  |  |  |
Market Value | $ 5,183,698 |  | $ 6,292,035 |
% of Partners' Capital | 62.19% |  | 38.26% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.12%, 1/04/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,981 |  |  |
% of Partners' Capital | 2.40% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.11%, 1/11/2018 [Member] |  |  |  |
Principal Amount | $ 300,000 |  |  |
Market Value | $ 299,908 |  |  |
% of Partners' Capital | 3.60% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.10%, 1/18/2018 [Member] |  |  |  |
Principal Amount | $ 300,000 |  |  |
Market Value | $ 299,846 |  |  |
% of Partners' Capital | 3.60% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.12%, 1/25/2018 [Member] |  |  |  |
Principal Amount | $ 300,000 |  |  |
Market Value | $ 299,777 |  |  |
% of Partners' Capital | 3.60% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.12%, 2/01/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,808 |  |  |
% of Partners' Capital | 2.40% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.13%, 2/08/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,763 |  |  |
% of Partners' Capital | 2.40% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.12%, 2/15/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,723 |  |  |
% of Partners' Capital | 2.40% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.10%, 2/22/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,685 |  |  |
% of Partners' Capital | 2.40% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.09%, 3/01/2018 [Member] |  |  |  |
Principal Amount | $ 100,000 |  |  |
Market Value | $ 99,822 |  |  |
% of Partners' Capital | 1.20% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.14%, 3/08/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,585 |  |  |
% of Partners' Capital | 2.39% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.14%, 3/15/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,542 |  |  |
% of Partners' Capital | 2.39% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.16%, 3/22/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,489 |  |  |
% of Partners' Capital | 2.39% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.17%, 3/29/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,439 |  |  |
% of Partners' Capital | 2.39% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.19%, 4/05/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,381 |  |  |
% of Partners' Capital | 2.39% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.22%, 4/12/2018 [Member] |  |  |  |
Principal Amount | $ 100,000 |  |  |
Market Value | $ 99,659 |  |  |
% of Partners' Capital | 1.19% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.23%, 4/19/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,270 |  |  |
% of Partners' Capital | 2.39% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.25%, 4/26/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,208 |  |  |
% of Partners' Capital | 2.39% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.27%, 5/03/2018 [Member] |  |  |  |
Principal Amount | $ 100,000 |  |  |
Market Value | $ 99,573 |  |  |
% of Partners' Capital | 1.19% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.32%, 5/10/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 199,061 |  |  |
% of Partners' Capital | 2.39% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.37%, 5/17/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 198,974 |  |  |
% of Partners' Capital | 2.39% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.43%, 5/24/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 198,876 |  |  |
% of Partners' Capital | 2.39% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.43%, 5/31/2018 [Member] |  |  |  |
Principal Amount | $ 100,000 |  |  |
Market Value | $ 99,408 |  |  |
% of Partners' Capital | 1.19% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.45%, 6/07/2018 [Member] |  |  |  |
Principal Amount | $ 300,000 |  |  |
Market Value | $ 298,116 |  |  |
% of Partners' Capital | 3.58% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.46%, 6/14/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 198,683 |  |  |
% of Partners' Capital | 2.38% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.49%, 6/21/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 198,594 |  |  |
% of Partners' Capital | 2.38% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 1.50%, 6/28/2018 [Member] |  |  |  |
Principal Amount | $ 200,000 |  |  |
Market Value | $ 198,527 |  |  |
% of Partners' Capital | 2.38% |  |  |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills: 0.34%, 1/05/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 400,000 |
Market Value |  |  | $ 399,985 |
% of Partners' Capital |  |  | 2.43% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills :0.43%, 1/19/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 500,000 |
Market Value |  |  | $ 499,894 |
% of Partners' Capital |  |  | 3.04% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.36%, 1/26/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 500,000 |
Market Value |  |  | $ 499,875 |
% of Partners' Capital |  |  | 3.04% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.40%, 2/02/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,929 |
% of Partners' Capital |  |  | 1.22% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.42%, 2/09/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 300,000 |
Market Value |  |  | $ 299,864 |
% of Partners' Capital |  |  | 1.82% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.45%, 2/16/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,885 |
% of Partners' Capital |  |  | 1.22% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.45%, 2/23/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 300,000 |
Market Value |  |  | $ 299,803 |
% of Partners' Capital |  |  | 1.82% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.45%, 3/02/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,850 |
% of Partners' Capital |  |  | 1.22% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.47%, 3/09/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,825 |
% of Partners' Capital |  |  | 1.22% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.50%, 3/16/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,793 |
% of Partners' Capital |  |  | 1.22% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.45%, 3/23/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 300,000 |
Market Value |  |  | $ 299,700 |
% of Partners' Capital |  |  | 1.82% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.43%, 3/30/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,790 |
% of Partners' Capital |  |  | 1.22% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.46%, 4/06/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,760 |
% of Partners' Capital |  |  | 1.22% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.47%, 4/13/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,734 |
% of Partners' Capital |  |  | 1.22% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.46%, 4/20/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,725 |
% of Partners' Capital |  |  | 1.21% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.47%, 4/27/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,700 |
% of Partners' Capital |  |  | 1.21% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills :0.49%, 5/04/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,663 |
% of Partners' Capital |  |  | 1.21% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.55%, 5/11/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,606 |
% of Partners' Capital |  |  | 1.21% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.60%, 5/18/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,547 |
% of Partners' Capital |  |  | 1.21% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.61%, 5/25/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,514 |
% of Partners' Capital |  |  | 1.21% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.60%, 6/01/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,501 |
% of Partners' Capital |  |  | 1.21% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.62%, 6/08/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 300,000 |
Market Value |  |  | $ 299,190 |
% of Partners' Capital |  |  | 1.82% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.65%, 6/15/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,409 |
% of Partners' Capital |  |  | 1.21% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.64%, 6/22/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 200,000 |
Market Value |  |  | $ 199,388 |
% of Partners' Capital |  |  | 1.21% |
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills : 0.60%, 6/29/2017 [Member] |  |  |  |
Principal Amount |  |  | $ 300,000 |
Market Value |  |  | $ 299,105 |
% of Partners' Capital |  |  | 1.82% |
Cash Equivalents [Member] | United States [Member] |  |  |  |
Market Value | $ 7,683,698 |  | $ 11,292,035 |
% of Partners' Capital | 92.19% |  | 68.66% |
Open Futures Contracts, Long [Member] | United States [Member] |  |  |  |
Notional Amount | $ 8,907,842 | [1] | $ 13,642,496 | [2]
Number of Contracts | Contracts | 292 | [1] | 454 | [2]
Unrealized Gain (Loss) on Open Commodity Contracts | $ (568,922) | [1] | $ 2,796,004 | [2]
% of Partners' Capital | (6.83%) | [1] | 17.00% | [2]
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG February 2018 contracts, expiring January 2018 [Member] |  |  |  |
Notional Amount | $ 872,763 |  |  |
Number of Contracts | Contracts | 24 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (164,043) |  |  |
% of Partners' Capital | (1.97%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG March 2018 contracts, expiring February 2018 [Member] |  |  |  |
Notional Amount | $ 832,869 |  |  |
Number of Contracts | Contracts | 24 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (135,429) |  |  |
% of Partners' Capital | (1.63%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG April 2018 contracts, expiring March 2018 [Member] |  |  |  |
Notional Amount | $ 715,113 |  |  |
Number of Contracts | Contracts | 25 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (27,863) |  |  |
% of Partners' Capital | (0.33%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG May 2018 contracts, expiring April 2018 [Member] |  |  |  |
Notional Amount | $ 685,247 |  |  |
Number of Contracts | Contracts | 24 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (27,407) |  |  |
% of Partners' Capital | (0.33%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG June 2018 contracts, expiring May 2018 [Member] |  |  |  |
Notional Amount | $ 731,645 |  |  |
Number of Contracts | Contracts | 25 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (38,395) |  |  |
% of Partners' Capital | (0.46%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG July 2018 contracts, expiring June 2018 [Member] |  |  |  |
Notional Amount | $ 692,833 |  |  |
Number of Contracts | Contracts | 24 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (19,873) |  |  |
% of Partners' Capital | (0.24%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG August 2018 contracts, expiring July 2018 [Member] |  |  |  |
Notional Amount | $ 722,063 |  |  |
Number of Contracts | Contracts | 25 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (20,313) |  |  |
% of Partners' Capital | (0.24%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG September 2018 contracts, expiring August 2018 [Member] |  |  |  |
Notional Amount | $ 693,242 |  |  |
Number of Contracts | Contracts | 24 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (23,882) |  |  |
% of Partners' Capital | (0.29%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG October 2018 contracts, expiring September 2018 [Member] |  |  |  |
Notional Amount | $ 712,475 |  |  |
Number of Contracts | Contracts | 24 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (37,595) |  |  |
% of Partners' Capital | (0.45%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG November 2018 contracts, expiring October 2018 [Member] |  |  |  |
Notional Amount | $ 762,732 |  |  |
Number of Contracts | Contracts | 25 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (45,982) |  |  |
% of Partners' Capital | (0.55%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG December 2018 contracts, expiring November 2018 [Member] |  |  |  |
Notional Amount | $ 762,850 |  |  |
Number of Contracts | Contracts | 24 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ (43,570) |  |  |
% of Partners' Capital | (0.52%) |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG January 2019 contracts, expiring December 2018 [Member] |  |  |  |
Notional Amount | $ 724,010 |  |  |
Number of Contracts | Contracts | 24 |  |  |
Unrealized Gain (Loss) on Open Commodity Contracts | $ 15,430 |  |  |
% of Partners' Capital | 0.18% |  |  |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG February 2017 contracts, expiring January 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,090,833 |
Number of Contracts | Contracts |  |  | 38 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 324,287 |
% of Partners' Capital |  |  | 1.97% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG March 2017 contracts, expiring February 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,027,264 |
Number of Contracts | Contracts |  |  | 38 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 372,656 |
% of Partners' Capital |  |  | 2.27% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG April 2017 contracts, expiring March 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 959,850 |
Number of Contracts | Contracts |  |  | 37 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 359,570 |
% of Partners' Capital |  |  | 2.19% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG May 2017 contracts, expiring April 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,026,488 |
Number of Contracts | Contracts |  |  | 38 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 319,852 |
% of Partners' Capital |  |  | 1.94% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG June 2017 contracts, expiring May 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,083,055 |
Number of Contracts | Contracts |  |  | 38 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 269,745 |
% of Partners' Capital |  |  | 1.64% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG July 2017 contracts, expiring June 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,138,072 |
Number of Contracts | Contracts |  |  | 38 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 224,608 |
% of Partners' Capital |  |  | 1.37% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG August 2017 contracts, expiring July 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,178,151 |
Number of Contracts | Contracts |  |  | 38 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 180,349 |
% of Partners' Capital |  |  | 1.10% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG September 2017 contracts, expiring August 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,125,511 |
Number of Contracts | Contracts |  |  | 38 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 224,249 |
% of Partners' Capital |  |  | 1.36% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG October 2017 contracts, expiring September 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,134,848 |
Number of Contracts | Contracts |  |  | 37 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 186,052 |
% of Partners' Capital |  |  | 1.13% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG November 2017 contracts, expiring October 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,271,197 |
Number of Contracts | Contracts |  |  | 38 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 98,323 |
% of Partners' Capital |  |  | 0.60% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG December 2017 contracts, expiring November 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,218,727 |
Number of Contracts | Contracts |  |  | 38 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 188,413 |
% of Partners' Capital |  |  | 1.14% |
Open Futures Contracts, Long [Member] | United States [Member] | NYMEX Natural Gas Futures NG January 2018 contracts, expiring December 2017 [Member] |  |  |  |
Notional Amount |  |  | $ 1,388,500 |
Number of Contracts | Contracts |  |  | 38 |
Unrealized Gain (Loss) on Open Commodity Contracts |  |  | $ 47,900 |
% of Partners' Capital |  |  | 0.29% |
[1] | Collateral amounted to $1,701,275 on open futures contracts.
[2] | Collateral amounted to $699,804 on open futures contracts.

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