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Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Sales of products | $ 81,871 | $ 120,543 | $ 240,043 | $ 374,767
Cost of sales and other direct production costs | 32,961 | 41,639 | 99,423 | 125,033
Depreciation, depletion and amortization | 11,601 | 11,099 | 31,141 | 34,565
| 44,562 | 52,738 | 130,564 | 159,598
Gross profit | 37,309 | 67,805 | 109,479 | 215,169
Other operating expenses: |  |  |  |
General and administrative | 5,695 | 5,559 | 15,723 | 14,808
Exploration | 11,722 | 9,872 | 24,479 | 19,012
Pre-development | 5,409 | 1,752 | 12,246 | 1,752
Other operating expense | 736 | 1,612 | 3,285 | 5,699
Provision (credit) for closed operations and environmental matters | (1,093) | 5,521 | 3,320 | 7,883
Lucky Friday suspension-related costs | 6,114 |  | 18,745 |
| 28,583 | 24,316 | 77,798 | 49,154
Income from operations | 8,726 | 43,489 | 31,681 | 166,015
Other income (expense): |  |  |  |
Gain (loss) on derivative contracts | (9,053) | 40,382 | (8,113) | 38,907
Interest and other income (loss) | 47 | (214) | 228 | 520
Interest expense | (591) | (411) | (1,563) | (2,384)
| (9,597) | 39,757 | (9,448) | 37,043
Income (loss) before income taxes | (871) | 83,246 | 22,233 | 203,058
Income tax provision | (14) | (27,325) | (8,022) | (70,463)
Net income | (885) | 55,921 | 14,211 | 132,595
Reclassification of net gain on sale of marketable securities included in net income |  |  |  | (611)
Unrealized holding gains (losses) on investments | 3,085 | (798) | 2,280 | (913)
Comprehensive income | 2,200 | 55,123 | 16,491 | 131,071
Basic income (loss) per common share after preferred dividends (in Dollars per share) | $ 0.00 | $ 0.20 | $ 0.05 | $ 0.47
Diluted income (loss) per common share after preferred dividends (in Dollars per share) | $ 0.00 | $ 0.19 | $ 0.05 | $ 0.45
Weighted average number of common shares outstanding - basic (in Shares) | 285,492 | 279,541 | 285,400 | 279,067
Weighted average number of common shares outstanding - diluted (in Shares) | 285,492 | 295,000 | 296,739 | 295,739
Cash dividends declared per common share (in Dollars per share) | $ 0.0025 | $ 0.0000 | $ 0.0375 | $ 0.0000
Preferred stock dividends | (138) | (138) | (414) | (414)
Income (loss) applicable to common shareholders | $ (1,023) | $ 55,783 | $ 13,797 | $ 132,181

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