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Condensed Schedule of Investments (USD $) | Jun. 30, 2013
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Unrealized Gain (Loss) on Open Commodity Contracts | $ 445,310 |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] |  |
Number of Contracts | 772 | [1]
Unrealized Gain (Loss) on Open Commodity Contracts | 445,310 | [1]
% of Partners' Capital | 0.62% | [1]
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL August 2013 contracts, expiring July 2013 [Member] |  |
Number of Contracts | 64 |
Unrealized Gain (Loss) on Open Commodity Contracts | 183,050 |
% of Partners' Capital | 0.25% |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL September 2013 contracts, expiring August 2013 [Member] |  |
Number of Contracts | 64 |
Unrealized Gain (Loss) on Open Commodity Contracts | 98,620 |
% of Partners' Capital | 0.14% |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL October 2013 contracts, expiring September 2013 [Member] |  |
Number of Contracts | 65 |
Unrealized Gain (Loss) on Open Commodity Contracts | 48,890 |
% of Partners' Capital | 0.07% |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL November 2013 contracts, expiring October 2013 [Member] |  |
Number of Contracts | 64 |
Unrealized Gain (Loss) on Open Commodity Contracts | 162,280 |
% of Partners' Capital | 0.23% |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL December 2013 contracts, expiring November 2013 [Member] |  |
Number of Contracts | 64 |
Unrealized Gain (Loss) on Open Commodity Contracts | 201,380 |
% of Partners' Capital | 0.28% |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL January 2014 contracts, expiring December 2013 [Member] |  |
Number of Contracts | 65 |
Unrealized Gain (Loss) on Open Commodity Contracts | 83,150 |
% of Partners' Capital | 0.12% |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL February 2014 contracts, expiring January 2014 [Member] |  |
Number of Contracts | 64 |
Unrealized Gain (Loss) on Open Commodity Contracts | (74,720) |
% of Partners' Capital | (0.10%) |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL March 2014 contracts, expiring February 2014 [Member] |  |
Number of Contracts | 64 |
Unrealized Gain (Loss) on Open Commodity Contracts | (265,600) |
% of Partners' Capital | (0.37%) |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL April 2014 contracts, expiring March 2014 [Member] |  |
Number of Contracts | 65 |
Unrealized Gain (Loss) on Open Commodity Contracts | 117,080 |
% of Partners' Capital | 0.16% |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL May 2014 contracts, expiring April 2014 [Member] |  |
Number of Contracts | 64 |
Unrealized Gain (Loss) on Open Commodity Contracts | (6,500) |
% of Partners' Capital | (0.01%) |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL June 2014 contracts, expiring May 2014 [Member] |  |
Number of Contracts | 64 |
Unrealized Gain (Loss) on Open Commodity Contracts | (54,700) |
% of Partners' Capital | (0.08%) |
Open Cleared Swap and Futures Contracts [Member] | Open Futures Contracts, Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL July 2014 contracts, expiring June 2014 [Member] |  |
Number of Contracts | 65 |
Unrealized Gain (Loss) on Open Commodity Contracts | (47,620) |
% of Partners' Capital | (0.07%) |
Cash Equivalents [Member] |  |
Market Value | 66,155,111 |
% of Partners' Capital | 91.73% |
Cash Equivalents [Member] | United States [Member] | US Treasury Securities [Member] | U.S. Treasury Bill [Member] |  |
Principal Amount | 4,000,000 |
Market Value | 3,999,047 |
% of Partners' Capital | 5.55% |
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] |  |
Market Value | 62,156,064 |
% of Partners' Capital | 86.18% |
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] | Fidelity Institutional Government Portfolio, Class I [Member] |  |
Principal Amount | 161,900 |
Market Value | 161,900 |
% of Partners' Capital | 0.22% |
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] | Goldman Sachs Financial Square Funds Government Fund, Class FS [Member] |  |
Principal Amount | 6,455,360 |
Market Value | 6,455,360 |
% of Partners' Capital | 8.95% |
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] | Morgan Stanley Institutional Liquidity Fund, Government Portfolio [Member] |  |
Principal Amount | 30,537,560 |
Market Value | 30,537,560 |
% of Partners' Capital | 42.34% |
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] | Wells Fargo Advantage Government Money Market Fund Class I [Member] |  |
Principal Amount | 25,001,244 |
Market Value | $ 25,001,244 |
% of Partners' Capital | 34.67% |
[1] | Collateral amounted to $6,076,684 on open futures contracts.

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