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Condensed Schedule of Investments (USD $) | Sep. 30, 2013
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Cash Equivalents [Member] |  |
Market Values | $ 22,322,421 |
% of Partners' Capital | 82.50% |
Cash Equivalents [Member] | United State [Member] | Money Market Funds [Member] |  |
Market Values | 20,522,574 |
% of Partners' Capital | 75.85% |
Cash Equivalents [Member] | United State [Member] | U.S. Treasury Bill [Member] | US Treasury Securities [Member] |  |
Principal Amount | 1,800,000 |
Market Values | 1,799,847 |
% of Partners' Capital | 6.65% |
Cash Equivalents [Member] | United State [Member] | Fidelity Institutional Government Portfolio - Class I [Member] | Money Market Funds [Member] |  |
Principal Amount | 2,509,115 |
Market Values | 2,509,115 |
% of Partners' Capital | 9.27% |
Cash Equivalents [Member] | United State [Member] | Goldman Sachs Financial Square Funds - Government Fund - Class FS [Member] | Money Market Funds [Member] |  |
Principal Amount | 1,502,300 |
Market Values | 1,502,300 |
% of Partners' Capital | 5.55% |
Cash Equivalents [Member] | United State [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 | 24.07% |
Cash Equivalents [Member] | United State [Member] | Wells Fargo Advantage Government Money Market Fund - Class I [Member] | Money Market Funds [Member] |  |
Principal Amount | 10,000,468 |
Market Values | 10,000,468 |
% of Partners' Capital | 36.96% |
Open Futures Contracts, Long [Member] | United State [Member] |  |
Number of Contracts | 713 | [1]
Unrealized Gain on Open Commodity Contracts | (1,505,810) | [1]
% of Partners' Capital | (5.57%) | [1]
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG November 2013 contracts, expiring October2013 [Member] |  |
Number of Contracts | 59 |
Unrealized Gain on Open Commodity Contracts | (261,140) |
% of Partners' Capital | (0.97%) |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG December 2013 contracts, expiring November 2013 [Member] |  |
Number of Contracts | 59 |
Unrealized Gain on Open Commodity Contracts | (281,210) |
% of Partners' Capital | (1.04%) |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG January 2014 contracts, expiring December 2013 [Member] |  |
Number of Contracts | 60 |
Unrealized Gain on Open Commodity Contracts | (113,440) |
% of Partners' Capital | (0.42%) |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG February 2014 contracts, expiring January 2014 [Member] |  |
Number of Contracts | 59 |
Unrealized Gain on Open Commodity Contracts | (141,350) |
% of Partners' Capital | (0.52%) |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG March 2014 contracts, expiring February 2014 [Member] |  |
Number of Contracts | 59 |
Unrealized Gain on Open Commodity Contracts | (75,110) |
% of Partners' Capital | (0.28%) |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG April 2014 contracts, expiring March 2014 [Member] |  |
Number of Contracts | 60 |
Unrealized Gain on Open Commodity Contracts | (138,130) |
% of Partners' Capital | (0.51%) |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG May 2014 contracts, expiring April 2014 [Member] |  |
Number of Contracts | 60 |
Unrealized Gain on Open Commodity Contracts | (159,650) |
% of Partners' Capital | (0.59%) |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG June 2014 contracts, expiring May 2014 [Member] |  |
Number of Contracts | 59 |
Unrealized Gain on Open Commodity Contracts | (167,500) |
% of Partners' Capital | (0.62%) |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG July 2014 contracts, expiring June 2014 [Member] |  |
Number of Contracts | 60 |
Unrealized Gain on Open Commodity Contracts | (94,510) |
% of Partners' Capital | (0.35%) |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG August 2014 contracts, expiring July 2014 [Member] |  |
Number of Contracts | 60 |
Unrealized Gain on Open Commodity Contracts | (73,450) |
% of Partners' Capital | (0.27%) |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG September 2014 contracts, expiring August 2014 [Member] |  |
Number of Contracts | 59 |
Unrealized Gain on Open Commodity Contracts | 42,060 |
% of Partners' Capital | 0.16% |
Open Futures Contracts, Long [Member] | United State [Member] | NYMEX Natural Gas Futures NG October 2014 contracts, expiring September2014 |  |
Number of Contracts | 59 |
Unrealized Gain on Open Commodity Contracts | $ (42,380) |
% of Partners' Capital | (0.16%) |
[1] | Collateral amounted to $3,423,834 on open futures contracts.

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