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Statements of Financial Condition (USD $) | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Assets |  |
Cash and cash equivalents (Note 2 and 5) | $ 86,708,443 | $ 123,736,412
Equity in UBS Securities LLC trading accounts: |  |
Cash and cash equivalents | 11,533,441 | 42,136,549
Unrealized gain on open commodity futures contracts | 1,556,910 | 4,002,120
Dividend receivable | 2,669 | 1,916
Interest receivable |  | 14
Other assets | 83,430 | 127,440
Total assets | 99,884,893 | 170,004,451
Liabilities and Partners' Capital |  |
Investment payable |  | 33
Professional fees payable | 302,530 | 407,121
General Partner management fees payable (Note 3) | 49,895 | 88,691
License fees payable | 4,014 | 8,088
Brokerage commissions payable | 3,642 | 6,022
Directors' fees payable | 2,877 | 4,463
Other liabilities | 153 | 153
Total liabilities | 363,111 | 514,571
Commitments and Contingencies (Notes 3, 4 and 5) |  |
Partners' Capital |  |
General Partner |  |
Limited Partners | 99,521,782 | 169,489,880
Total Partners' Capital | 99,521,782 | 169,489,880
Total liabilities and partners' capital | $ 99,884,893 | $ 170,004,451
Limited Partners' units outstanding | 2,500,000 | 3,900,000
Net asset value per unit | $ 39.81 | $ 43.46
Market value per unit | $ 39.67 | $ 43.48

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Balance Type: | debit
Period Type: | instant