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Condensed Schedule of Investments (USD $) | 9 Months Ended
--- | ---
Sep. 30, 2012
Number of Contracts | 506
Unrealized Loss on Open Commodity Contracts | $ (436,350)
% of Partners' Capital | (0.77%)
United States - Money Market Funds |
Market Value | 40,352,635
% of Partners' Capital | 71.00%
Us Treasury Securities [Member] |
United States Treasury Obligation |
Principal Amount | 2,340,000
United States - Money Market Funds |
Market Value | 2,339,942
% of Partners' Capital | 4.12%
Fidelity Institutional Government Portfolio [Member] |
United States - Money Market Funds |
Principal Amount | 5,502,611
Market Value | 5,502,611
% of Partners' Capital | 9.68%
Goldman Sachs Financial Square Funds [Member] |
United States - Money Market Funds |
Principal Amount | 11,001,056
Market Value | 11,001,056
% of Partners' Capital | 19.36%
Morgan Stanley Institutional Liquidity Fund [Member] |
United States - Money Market Funds |
Principal Amount | 11,508,829
Market Value | 11,508,829
% of Partners' Capital | 20.25%
Wells Fargo Advantage Government Money Market Fund - Class I [Member] |
United States - Money Market Funds |
Principal Amount | 10,000,197
Market Value | 10,000,197
% of Partners' Capital | 17.59%
Money Market Funds [Member] |
United States - Money Market Funds |
Market Value | $ 38,012,693
% of Partners' Capital | 66.88%

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