Condensed Statements of Cash Flows (USD $)	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012
Cash Flows from Operating Activities:
Net income (loss)	$ 739,041	$ (16,873,971)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Decrease in commodity futures trading account - cash and cash equivalents	5,456,615	16,146,847
Unrealized loss on open futures contracts	1,111,600	12,464,380
(Increase) decrease in dividend receivable	1,148	(293)
Decrease in interest receivable	0	14
(Increase) decrease in other assets	55,187	(1,360)
Decrease investment payable	0	(33)
Decrease in professional fees payable	(104,873)	(125,561)
Decrease in General Partner management fees payable	(12,235)	(36,583)
Decrease in brokerage commissions payable	(880)	(1,600)
Decrease in other liabilities	(496)	(3,087)
Net cash provided by operating activities	7,245,107	11,568,753
Cash Flows from Financing Activities:
Addition of partnership units	20,455,450	47,908,837
Redemption of partnership units	(48,595,161)	(88,828,511)
Net cash used in financing activities	(28,139,711)	(40,919,674)
Net Decrease in Cash and Cash Equivalents	(20,894,604)	(29,350,921)
Cash and Cash Equivalents, beginning of period	86,708,443	123,736,412
Cash and Cash Equivalents, end of period	$ 65,813,839	$ 94,385,491

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.