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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Cost of uranium sales: |  |  |
Operating expenses | $ 2,564,827 | $ 648,278 | $ 394,763
Mineral property expenses | 4,229,338 | (115,637) | 1,450,798
Accretion/amortization of asset retirement obligations | 85,181 | 121,183 | 155,943
Depreciation and depletion | 396,246 | 599,504 | 756,377
Impairment of uranium properties | 1,737,359 | 1,460,170 | 961,278
Total cost of uranium sales | 9,012,951 | 2,713,498 | 3,719,159
Loss from operations before corporate expenses | (9,012,951) | (2,713,498) | (3,719,159)
Corporate expenses: |  |  |
General and administrative (includes stock compensation expense of $427,000, $884,000 and $1,032,000 in 2012, 2011 and 2010, respectively) | 10,399,084 | 8,400,955 | 8,286,672
Depreciation | 160,747 | 127,741 | 143,361
Total corporate expenses | 10,559,831 | 8,528,696 | 8,430,033
Loss from operations | (19,572,782) | (11,242,194) | (12,149,192)
Other income and expense: |  |  |
Interest expense | (50,880) | (18,968) | (25,362)
Interest and other income, net | 262,809 | 195,320 | 370,835
Net loss | $ (19,360,853) | $ (11,065,842) | $ (11,803,719)
Basic and diluted net loss per common share (in dollars per share) | $ (1.58) | $ (1.18) | $ (1.63)
Average weighted shares outstanding (in shares) | 12,237,349 | 9,348,053 | 7,231,346

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