Statements of Income and Expenses (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income
Interest Income	$ 6,695,131	$ 11,506,704	$ 24,115,062	$ 30,540,276
Dividends from Affiliates	1,837,418	3,399,668	5,844,853	4,485,222
Total Income	8,532,549	14,906,372	29,959,915	35,025,498
Expenses
Management Fees	3,204,939	5,610,031	10,768,355	17,409,494
Brokerage Commissions and Fees	123,146	184,272	290,905	429,770
Interest Expense	36,153	263,947	290,361	282,184
Total Expenses	3,364,238	6,058,250	11,349,621	18,121,448
Less: Waivers	(93,078)	(123,497)	(280,253)	(343,329)
Net Expenses	3,271,160	5,934,753	11,069,368	17,778,119
Net Investment Income (Loss)	5,261,389	8,971,619	18,890,547	17,247,379
Net Realized Gain (Loss) on
United States Treasury Obligations	33,003	(4,918)	32,242	(10,482)
Commodity Futures Contracts	(40,903,614)	(55,507,248)	(102,006,167)	93,836,273
Net Realized Gain (Loss)	(40,870,611)	(55,512,166)	(101,973,925)	93,825,791
Net Change in Unrealized Gain (Loss) on
United States Treasury Obligations	(255,940)	(516,239)	362,864	(256,277)
Affiliated Investments	(47,447)	(1,565,784)	320,274	427,032
Commodity Futures Contracts	(40,061,347)	67,877,987	181,974,461	64,802,384
Net Change in Unrealized Gain (Loss)	(40,364,734)	65,795,964	182,657,599	64,973,139
Net Realized and Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(81,235,345)	10,283,798	80,683,674	158,798,930
Net Income (Loss)	$ (75,973,956)	$ 19,255,417	$ 99,574,221	$ 176,046,309