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Condensed Statements of Operations (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2012 | Mar. 31, 2011
Gain on trading of commodity futures contracts: |  |
Realized gain on closed positions | $ 2,158,700 | $ 8,133,470
Change in unrealized gain on open positions | 7,301,720 | 22,692,570
Dividend income | 6,102 | 12,329
Interest income | 2,232 | 996
Other income | 3,150 | 16,000
Total income | 9,471,904 | 30,855,365
Expenses |  |
General Partner management fees (Note 3) | 255,887 | 326,319
Professional fees | 38,135 | 101,084
Brokerage commissions | 4,890 | 12,023
Other expenses | 16,804 | 23,059
Total expenses | 315,716 | 462,485
Net income | $ 9,156,188 | $ 30,392,880
Net income per limited partnership unit | 2.35 | 5.59
Net income per weighted average limited partnership unit | 2.43 | 6.18
Weighted average limited partnership units outstanding | 3,760,440 | 4,917,778

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