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Condensed Statements of Operations - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Gain (loss) on trading of commodity futures contracts:
Realized gain (loss) on closed futures contracts		$ (2,101,373)	$ 7,166,117	$ (4,026,962)	$ 17,430,373
Change in unrealized gain (loss) on open futures contracts		(2,236,727)	(2,150,147)	10,893,372	3,311,927
Dividend income		51,826	65,990	202,243	180,227
Interest income	[1]	237,051	322,972	775,700	851,226
ETF transaction fees		350	1,750	3,500	5,250
Total income (loss)		(4,048,873)	5,406,682	7,847,853	21,779,003
Expenses
General Partner management fees (Note 3)		79,675	120,405	255,832	374,286
Professional fees		27,442	34,342	104,058	108,757
Brokerage commissions		1,627	2,282	5,484	5,501
Directors' fees and insurance		3,393	3,642	9,398	10,456
License fees		1,992	3,010	6,396	9,357
Total expenses		114,129	163,681	381,168	508,357
Net income (loss)		$ (4,163,002)	$ 5,243,001	$ 7,466,685	$ 21,270,646
Net income (loss) per limited partnership share		$ (1.64)	$ 1.77	$ 2.34	$ 6.09
Net income (loss) per weighted average limited partnership share		$ (1.66)	$ 1.64	$ 2.82	$ 5.98
Weighted average limited partnership shares outstanding		2,505,435	3,187,500	2,651,465	3,557,875
[1] Interest income does not exceed paid in kind of 5%.

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