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Condensed Statements of Cash Flows - USD ($) | 6 Months Ended
--- | ---
Jun. 30, 2017 | Jun. 30, 2016
Cash Flows from Operating Activities: |  |
Net income (loss) | $ (21,042,667) | $ 21,093,603
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |
(Increase) decrease in commodity futures trading account - cash and cash equivalents | (18,691,537) | 21,325,189
Unrealized (gain) loss on open futures contracts | 27,523,684 | (33,311,833)
(Increase) decrease in dividends receivable | (3,127) | (4,317)
(Increase) decrease in directors' fees and insurance receivable | (2,146) | (570)
Increase (decrease) in payable due to Broker | (15,112,791) | 4,220,012
Increase (decrease) in General Partner management fees payable | (11,761) | 25,770
Increase (decrease) in professional fees payable | (31,957) | (106,943)
Increase (decrease) in brokerage commissions payable | 0 | 2,200
Increase (decrease) in directors' fees and insurance payable | (1,439) | (742)
Increase (decrease) in license fees payable | (1,988) | 2,119
Net cash provided by (used in) operating activities | (27,375,729) | 13,244,488
Cash Flows from Financing Activities: |  |
Addition of partnership shares | 22,440,164 | 39,299,030
Redemption of partnership shares | (13,639,335) | (10,078,068)
Net cash provided by (used in) financing activities | 8,800,829 | 29,220,962
Net Increase (Decrease) in Cash and Cash Equivalents | (18,574,900) | 42,465,450
Cash and Cash Equivalents, beginning of period | 117,373,323 | 61,380,282
Cash and Cash Equivalents, end of period | $ 98,798,423 | $ 103,845,732

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