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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
NET SALES: |  |  |  |
Related parties | $ 513,681 | $ 288,573 | $ 1,089,410 | $ 574,156
Third-party customers | 9,810 | 169,751 | 21,992 | 305,015
Total net sales | 523,491 | 458,324 | 1,111,402 | 879,171
Cost of goods sold | 515,149 | 419,820 | 1,008,965 | 842,425
Gross profit | 8,342 | 38,504 | 102,437 | 36,746
Selling, general and administrative expenses | 10,012 | 10,618 | 21,983 | 20,680
Ravenswood impairment | 30,850 | 0 | 30,850 | 0
Other operating expense – net | 2,601 | 1,874 | 4,680 | 4,288
Operating income (loss) | (35,121) | 26,012 | 44,924 | 11,778
Interest expense | (5,573) | (5,571) | (11,124) | (11,048)
Interest income | 61 | 34 | 203 | 174
Net gain (loss) on forward and derivative contracts | 566 | 352 | 919 | (527)
Unrealized gain on fair value of contingent consideration | 10,287 | 0 | 16,814 | 0
Other income – net | 93 | 300 | 1,147 | 47
Income (loss) before income taxes and equity in earnings of joint ventures | (29,687) | 21,127 | 52,883 | 424
Income tax expense | (5,065) | (1,654) | (14,366) | (560)
Income (loss) before equity in earnings of joint ventures | (34,752) | 19,473 | 38,517 | (136)
Equity in earnings of joint ventures | 855 | 871 | 1,365 | 376
Net income (loss) | (33,897) | 20,344 | 39,882 | 240
Net income (loss) allocated to common stockholders | $ (33,897) | $ 18,675 | $ 36,628 | $ 220
EARNINGS (LOSS) PER COMMON SHARE: |  |  |  |
Basic (in dollars per share) | $ (0.39) | $ 0.21 | $ 0.42 | $ 0.00
Diluted (in dollars per share) | $ (0.39) | $ 0.21 | $ 0.41 | $ 0.00
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING: |  |  |  |
Basic (shares) | 86,873 | 88,787 | 87,838 | 88,752
Diluted (shares) | 86,873 | 89,352 | 88,495 | 89,292

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