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Condensed Schedule of Investments - Jun. 30, 2015 | USD ($) Number
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Cash Equivalents [Member] | Morgan Stanley Institutional Liquidity Fund - Government Portfolio [Member] | Money Market Funds [Member] |  |
Principal Amount |  | $ 6,510,691
Market Values |  | $ 6,510,691
% of Partners' Capital |  | 42.33%
Cash Equivalents [Member] | Wells Fargo Advantage Government Money Market Fund - Class I [Member] | Money Market Funds [Member] |  |
Principal Amount |  | $ 3,000,000
Market Values |  | $ 3,000,000
% of Partners' Capital |  | 19.50%
Cash Equivalents [Member] | United State [Member] |  |
Market Values |  | $ 9,510,691
% of Partners' Capital |  | 61.83%
Open Futures Contracts, Long [Member] | United State [Member] |  |
Number of Contracts | Number | [1] | 504
Unrealized Gain (Loss) on Open Commodity Contracts | [1] | $ (1,161,481)
% of Partners' Capital | [1] | (7.55%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG August 2015 contracts, expiring July 2015 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ (190,570)
% of Partners' Capital |  | (1.24%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG September 2015 contracts, expiring August 2015 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ (157,030)
% of Partners' Capital |  | (1.02%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG October 2015 contracts, expiring September 2015 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ (147,010)
% of Partners' Capital |  | (0.95%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG November 2015 contracts, expiring October 2015 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ (156,700)
% of Partners' Capital |  | (1.02%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG December 2015 contracts, expiring November 2015 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ (142,740)
% of Partners' Capital |  | (0.93%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG January 2016 contracts, expiring December 2015 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ (271,115)
% of Partners' Capital |  | (1.76%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG February 2016 contracts, expiring January 2016 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ (65,790)
% of Partners' Capital |  | (0.43%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG March 2016 contracts, expiring February 2016 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ (51,066)
% of Partners' Capital |  | (0.33%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG April 2016 contracts, expiring March 2016 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ (6,916)
% of Partners' Capital |  | (0.04%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG May 2016 contracts, expiring April 2016 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ 54,017
% of Partners' Capital |  | 0.35%
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG June 2016 contracts, expiring May 2016 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ (31,941)
% of Partners' Capital |  | (0.21%)
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG July 2016 contracts, expiring June 2016 [Member] |  |
Number of Contracts | Number |  | 42
Unrealized Gain (Loss) on Open Commodity Contracts |  | $ 5,380
% of Partners' Capital |  | 0.03%
[1] | Collateral amounted to $2,895,276 on open future contracts.

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