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Condensed Schedule of Investments (USD $) | Jun. 30, 2014
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Money Market Funds [Member] |  |
Market Values | $ 9,510,691 |
% of Partners' Capital | 54.01% |
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 | 36.97% |
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 | 17.04% |
Cash Equivalents [Member] |  |
Market Values | 12,510,288 |
% of Partners' Capital | 71.05% |
Cash Equivalents [Member] | US Treasury Securities [Member] |  |
Principal Amount | 3,000,000 |
Market Values | 2,999,597 |
% of Partners' Capital | 17.04% |
Open Futures Contracts, Long [Member] |  |
Number of Contracts | 405 | [1]
Unrealized Gain on Open Commodity Contracts | 829,580 | [1]
% of Partners' Capital | 4.71% | [1]
Open Futures Contracts, Long [Member] | NNYMEX Natural Gas Futures NG August 2014 contracts, expiring July 2014 [Member] |  |
Number of Contracts | 33 |
Unrealized Gain on Open Commodity Contracts | 166,160 |
% of Partners' Capital | 0.94% |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG September 2014 contracts, expiring August 2014 [Member] |  |
Number of Contracts | 34 |
Unrealized Gain on Open Commodity Contracts | 208,760 |
% of Partners' Capital | 1.19% |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG October 2014 contracts, expiring September 2014 [Member] |  |
Number of Contracts | 34 |
Unrealized Gain on Open Commodity Contracts | 164,990 |
% of Partners' Capital | 0.94% |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG November 2014 contracts, expiring October 2014 [Member] |  |
Number of Contracts | 34 |
Unrealized Gain on Open Commodity Contracts | 115,630 |
% of Partners' Capital | 0.66% |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG December 2014 contracts, expiring November 2014 [Member] |  |
Number of Contracts | 34 |
Unrealized Gain on Open Commodity Contracts | 194,880 |
% of Partners' Capital | 1.11% |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG January 2015 contracts, expiring December 2014 [Member] |  |
Number of Contracts | 33 |
Unrealized Gain on Open Commodity Contracts | 46,730 |
% of Partners' Capital | 0.26% |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG February 2015 contracts, expiring January 2015 [Member] |  |
Number of Contracts | 33 |
Unrealized Gain on Open Commodity Contracts | 76,590 |
% of Partners' Capital | 0.43% |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG March 2015 contracts, expiring February 2015 [Member] |  |
Number of Contracts | 34 |
Unrealized Gain on Open Commodity Contracts | (65,750) |
% of Partners' Capital | (0.37%) |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG April 2015 contracts, expiring March 2015 (Member) |  |
Number of Contracts | 34 |
Unrealized Gain on Open Commodity Contracts | 1,130 |
% of Partners' Capital | 0.01% |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG May 2015 contracts, expiring April 2015 [Member] |  |
Number of Contracts | 34 |
Unrealized Gain on Open Commodity Contracts | (38,980) |
% of Partners' Capital | (0.22%) |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG June 2015 contracts, expiring May 2015 [Member] |  |
Number of Contracts | 34 |
Unrealized Gain on Open Commodity Contracts | 6,250 |
% of Partners' Capital | 0.03% |
Open Futures Contracts, Long [Member] | NYMEX Natural Gas Futures NG July 2015 contracts, expiring June 2015 [Member] |  |
Number of Contracts | 34 |
Unrealized Gain on Open Commodity Contracts | $ (46,810) |
% of Partners' Capital | (0.27%) |
[1] | Collateral amounted to $238,536 on open futures contracts.

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