Condensed Statements of Operations - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Gain (loss) on trading of commodity futures contracts:
Realized gain (loss) on closed contracts	$ (696,645)	$ 17,110	$ (5,095,785)	$ 2,485,620
Change in unrealized gain (loss) on open contracts	(1,179,075)	(1,351,640)	2,579,334	(1,612,110)
Dividend income	740	726	2,180	2,074
Interest income	826	489	2,048	1,616
ETF transaction fees	1,050	0	5,600	4,200
Total income (loss)	(1,873,104)	(1,333,315)	(2,506,623)	881,400
Expenses
General Partner management fees (Note 3)	28,510	30,490	94,549	110,702
Professional fees	26,422	42,410	74,624	136,892
Brokerage commissions	1,078	641	4,822	2,522
Directors' fees and insurance	715	1,340	2,493	4,651
License fees	570	610	1,891	2,214
Total expenses	57,295	75,491	178,379	256,981
Expense waiver (Note 3)	(23,085)	(39,383)	(64,848)	(118,128)
Net expenses	34,210	36,108	113,531	138,853
Net income (loss)	$ (1,907,314)	$ (1,369,423)	$ (2,620,154)	$ 742,547
Net income (loss) per limited partnership share	$ (1.54)	$ (1.52)	$ (2.41)	$ (0.28)
Net income (loss) per weighted average limited partnership share	$ (1.56)	$ (1.52)	$ (1.99)	$ 0.72
Weighted average limited partnership shares outstanding	1,224,457	900,000	1,316,484	1,025,641