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Condensed Schedule of Investments	Sep. 30, 2018 USD ($)
Cash Equivalents [Member]
Market Value	$ 91,341,867
% of Partners' Capital	85.30%
Cash Equivalents [Member] | United States Treasury Obligations [Member]
Market Value	$ 65,641,867
% of Partners' Capital	61.30%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,1.87%, 10/04/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,999,536
% of Partners' Capital	2.80%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,1.90%, 10/11/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,998,956
% of Partners' Capital	1.87%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,1.97%, 10/18/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,998,158
% of Partners' Capital	1.87%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.00%, 10/25/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,997,360
% of Partners' Capital	1.87%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.00%, 11/01/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,996,590
% of Partners' Capital	1.86%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.03%, 11/08/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,995,767
% of Partners' Capital	1.86%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.05%, 11/15/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,992,388
% of Partners' Capital	2.79%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.07%, 11/23/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,990,946
% of Partners' Capital	2.79%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.05%, 11/29/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,990,044
% of Partners' Capital	2.79%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.09%, 12/06/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,992,410
% of Partners' Capital	1.86%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.06%, 12/13/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,987,590
% of Partners' Capital	2.79%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.09%, 12/20/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,986,200
% of Partners' Capital	2.79%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.07%, 12/27/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,985,138
% of Partners' Capital	2.79%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.10%, 1/03/2019
Principal Amount	$ 3,000,000
Market Value	$ 2,983,746
% of Partners' Capital	2.79%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.10%, 1/10/2019
Principal Amount	$ 3,000,000
Market Value	$ 2,982,493
% of Partners' Capital	2.79%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.13%, 1/17/2019
Principal Amount	$ 3,000,000
Market Value	$ 2,981,010
% of Partners' Capital	2.78%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.15%, 1/24/2019
Principal Amount	$ 3,000,000
Market Value	$ 2,979,635
% of Partners' Capital	2.78%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.18%, 1/31/2019
Principal Amount	$ 3,000,000
Market Value	$ 2,978,091
% of Partners' Capital	2.78%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.20%, 2/07/2019
Principal Amount	$ 2,000,000
Market Value	$ 1,984,413
% of Partners' Capital	1.85%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.19%, 2/14/2019
Principal Amount	$ 2,000,000
Market Value	$ 1,983,604
% of Partners' Capital	1.85%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.20%, 2/21/2019
Principal Amount	$ 2,000,000
Market Value	$ 1,982,681
% of Partners' Capital	1.85%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.24%, 2/28/2019
Principal Amount	$ 3,000,000
Market Value	$ 2,972,313
% of Partners' Capital	2.78%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.38%, 3/07/2019
Principal Amount	$ 2,000,000
Market Value	$ 1,979,459
% of Partners' Capital	1.85%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.28%, 3/14/2019
Principal Amount	$ 2,000,000
Market Value	$ 1,979,454
% of Partners' Capital	1.85%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.33%, 3/21/2019
Principal Amount	$ 2,000,000
Market Value	$ 1,978,150
% of Partners' Capital	1.85%
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,2.34%, 3/28/2019
Principal Amount	$ 3,000,000
Market Value	$ 2,965,735
% of Partners' Capital	2.77%
Cash Equivalents [Member] | United States - Money Market Funds [Member]
Market Value	$ 25,700,000
% of Partners' Capital	24.00%
Cash Equivalents [Member] | United States - Money Market Funds [Member] | Fidelity Investments Money Market Funds - Government Portfolio [Member]
Principal Amount	$ 13,200,000
Market Value	$ 13,200,000
% of Partners' Capital	12.33%
Cash Equivalents [Member] | United States - Money Market Funds [Member] | Goldman Sachs Financial Square Funds - Government Fund - Class FS [Member]
Principal Amount	$ 4,000,000
Market Value	$ 4,000,000
% of Partners' Capital	3.73%
Cash Equivalents [Member] | United States - Money Market Funds [Member] | Morgan Stanley Institutional Liquidity Funds - Government Portfolio [Member]
Principal Amount	$ 8,500,000
Market Value	$ 8,500,000
% of Partners' Capital	7.94%
Open Futures Contracts - Long [Member] | Foreign Contracts [Member] | ICE Brent Crude Oil Futures CO December 2018 contracts, expiring October 2018 [Member]
Number of Contracts	1,294	[1]
Value/Unrealized Gain (Loss) on Open Commodity Contracts	$ 5,866,400	[1]
Principal Amount	$ 101,186,220	[1]
% of Partners' Capital	5.48%	[1]
[1] Collateral amounted to $14,769,562 on open futures contracts.

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