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Condensed Schedule of Investments	Jun. 30, 2016 USD ($) Contract
Unrealized Gain (Loss) on Open Commodity Contracts	$ (171,836,590)
Open Futures Contracts - Long [Member] | United States [Member] | NYMEX WTI Crude Oil Futures CL August 2016 contracts, expiring July 2016 [Member]
Number of Contracts | Contract	69,694
Unrealized Gain (Loss) on Open Commodity Contracts	$ (171,836,590)	[1]
% of Partners' Capital	(5.10%)	[1]
Cash Equivalent [Member]
Market Value	$ 2,887,772,500
% of Partners' Capital	85.73%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.32%, 7/07/2016 [Member]
Principal Amount	$ 50,000,000
Market Value	$ 49,997,333
% of Partners' Capital	1.48%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.32%, 7/14/2016 [Member]
Principal Amount	$ 50,000,000
Market Value	$ 49,994,222
% of Partners' Capital	1.48%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.38%, 7/21/2016 [Member]
Principal Amount	$ 50,000,000
Market Value	$ 49,989,444
% of Partners' Capital	1.48%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.43%, 7/28/2016 [Member]
Principal Amount	$ 100,000,000
Market Value	$ 99,967,750
% of Partners' Capital	2.97%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.42%, 8/04/2016 [Member]
Principal Amount	$ 50,000,000
Market Value	$ 49,980,403
% of Partners' Capital	1.48%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.41%, 8/11/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,964,979
% of Partners' Capital	2.23%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.43%, 8/18/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,957,500
% of Partners' Capital	2.23%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.45%, 8/25/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,949,011
% of Partners' Capital	2.23%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.48%, 9/01/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,938,000
% of Partners' Capital	2.23%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.46%, 9/08/2016 [Member]
Principal Amount	$ 100,000,000
Market Value	$ 99,912,792
% of Partners' Capital	2.97%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.45%, 9/15/2016 [Member]
Principal Amount	$ 100,000,000
Market Value	$ 99,905,000
% of Partners' Capital	2.97%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.44%, 9/22/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,923,917
% of Partners' Capital	2.22%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.38%, 9/29/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,928,750
% of Partners' Capital	2.23%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.34%, 10/06/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,932,302
% of Partners' Capital	2.23%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills,0.35%, 10/13/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,925,250
% of Partners' Capital	2.22%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.34%, 10/20/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,921,375
% of Partners' Capital	2.22%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.39%, 10/27/2016 [Member]
Principal Amount	$ 100,000,000
Market Value	$ 99,871,347
% of Partners' Capital	2.97%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.37%, 11/03/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,902,995
% of Partners' Capital	2.22%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.36%, 11/10/2016 [Member]
Principal Amount	$ 70,000,000
Market Value	$ 69,908,883
% of Partners' Capital	2.08%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.39%, 11/17/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,887,062
% of Partners' Capital	2.22%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.46%, 11/25/2016 [Member]
Principal Amount	$ 170,000,000
Market Value	$ 169,684,154
% of Partners' Capital	5.04%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.47%, 12/01/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,851,781
% of Partners' Capital	2.22%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.41%, 12/08/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,863,334
% of Partners' Capital	2.22%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.34%, 12/15/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,881,708
% of Partners' Capital	2.22%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.39%, 12/22/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,859,531
% of Partners' Capital	2.22%
Cash Equivalent [Member] | United States [Member] | U.S. Treasury Bills, 0.34%, 12/29/2016 [Member]
Principal Amount	$ 75,000,000
Market Value	$ 74,873,677
% of Partners' Capital	2.22%
Cash Equivalent [Member] | United States [Member] | US Treasury Securities [Member]
Market Value	$ 2,037,772,500
% of Partners' Capital	60.50%
Cash Equivalent [Member] | United States [Member] | Money Market Funds [Member]
Market Value	$ 850,000,000
% of Partners' Capital	25.23%
Cash Equivalent [Member] | United States [Member] | Money Market Funds [Member] | Fidelity Institutional Money Market Funds - Government Portfolio [Member]
Principal Amount	$ 300,000,000
Market Value	$ 300,000,000
% of Partners' Capital	8.91%
Cash Equivalent [Member] | United States [Member] | Money Market Funds [Member] | Goldman Sachs Financial Square Funds - Government Fund - Class FS [Member]
Principal Amount	$ 300,000,000
Market Value	$ 300,000,000
% of Partners' Capital	8.91%
Cash Equivalent [Member] | United States [Member] | Money Market Funds [Member] | Morgan Stanley Institutional Liquidity Funds - Government Portfolio [Member]
Principal Amount	$ 250,000,000
Market Value	$ 250,000,000
% of Partners' Capital	7.41%
[1] Collateral amounted to $624,604,749 on open future contracts.

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