Statements of Income and Expenses (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income
Interest Income	$ 1,234,092	$ 511,350	$ 3,551,909	$ 1,179,545
Dividends from Affiliates	231,927	34,655	363,691	71,442
Total Income	1,466,019	546,005	3,915,600	1,250,987
Expenses
Management Fees	434,656	511,427	1,703,575	1,517,065
Brokerage Commissions and Fees	27,460	27,113	45,035	56,978
Interest Expense	153,732		168,644
Total Expenses	615,848	538,540	1,917,254	1,574,043
Less: Waivers	(9,446)	(10,699)	(31,854)	(31,563)
Net Expenses	606,402	527,841	1,885,400	1,542,480
Net Investment Income (Loss)	859,617	18,164	2,030,200	(291,493)
Net Realized Gain (Loss) on
United States Treasury Obligations	(3,229)	122	(5,073)	(438)
Commodity Futures Contracts	(19,382,968)	15,257,206	(1,374,992)	34,000,631
Net Realized Gain (Loss)	(19,386,197)	15,257,328	(1,380,065)	34,000,193
Net Change in Unrealized Gain (Loss) on
United States Treasury Obligations	(57,832)	(2,429)	(20,706)	12,862
Affiliated Investments	(100,254)	37,975	27,342	72,244
Commodity Futures Contracts	196,505	12,769,475	(51,262,745)	16,881,325
Net Change in Unrealized Gain (Loss)	38,419	12,805,021	(51,256,109)	16,966,431
Net Realized and Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(19,347,778)	28,062,349	(52,636,174)	50,966,624
Net Income (Loss)	$ (18,488,161)	$ 28,080,513	$ (50,605,974)	$ 50,675,131