Condensed Statements of Cash Flows (USD $)	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Cash Flows from Operating Activities:
Net loss	$ (2,507,635)	$ (7,696,878)
Adjustments to reconcile net loss to cash used in operating activities:
Decrease (increase) in commodity futures trading account - cash	2,204,949	(2,328,109)
Unrealized gain (loss) on futures contracts	(716,570)	4,783,520
(Increase) decrease in receivable from General Partner	78,116	(32,342)
(Increase) decrease in dividend receivable and other assets	567	(1,261)
Increase in investment payable	12
Increase (decrease) in professional fees payable	(105,817)	47,700
Increase (decrease) in General Partner management fees payable	(1,045)	5,246
Increase (decrease) in brokerage commissions payable	(200)	885
Increase (decrease) in other liabilities	(316)	1,227
Net cash used in operating activities	(1,047,939)	(5,220,012)
Cash Flows from Financing Activities:
Addition of partnership units	10,130,630	12,642,174
Redemption of partnership units	(6,812,861)	(12,932,599)
Net cash provided by (used in) financing activities	3,317,769	(290,425)
Net Increase (Decrease) in Cash and Cash Equivalents	2,269,830	(5,510,437)
Cash and Cash Equivalents, beginning of period	30,313,275	32,056,391
Cash and Cash Equivalents, end of period	$ 32,583,105	$ 26,545,954

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).

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The net cash inflow or outflow from financing activity for the period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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