|                                                                                     |   | Computation      of Ratio of Earnings to Fixed Charges(in      thousands) |   |
|------------------------------------------------------------------------------------------|--------|---------------------------------------------------------------------------|--------|
|                                                                                     |   | Year      endedDecember 31,2009                                      |   |   | Year      endedDecember 31,2008(1) |   |   | Year      ended December 31, 2007(1) |   |    | Year      ended December 31, 2006(1) |   |   | Year      ended December 31, 2005 |   |
| Earnings:                                                                                |   |                                                                      |   |   |   |   |   |   |   |   |   |   |    |   |   |   |   |   |   |   |
| Pretax      income                                                                       |   | $                                                                         | 29,256 |   |   | $ | (49,897 | ) |   | $ | (233,855 | ) |   | $ | (18,277 | ) |   | $ | 49,299 |   |
| Fixed      charges                                                                       |   |                                                                      | 54,752 |   |   |   | 52,147 |   |   |   | 45,365 |   |   |   | 21,417 |   |   |   | 16,199 |   |
| Amortization      of capitalized interest                                                |   |                                                                      | 445    |   |   |   | 255 |   |   |   | 32 |   |   |   | —   |   |   |   | —   |   |
| Capitalized      interest                                                                |   |                                                                      | (325   | ) |   |   | (5,946 | ) |   |   | (5,057 | ) |   |   | (990 | ) |   |   | (293 | ) |
| Total      earnings                                                                      |   | $                                                                         | 84,128 |   |   | $ | (3,441 | ) |   | $ | (193,515 | ) |   | $ | 2,150 |   |   | $ | 65,205 |   |
|                                                                                     |   |                                                                      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Fixed      charges:                                                                      |   |                                                                      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Interest      expense                                                                    |   | $                                                                         | 47,724 |   |   | $ | 46,737 |   |   | $ | 35,923 |   |   | $ | 17,303 |   |   | $ | 13,356 |   |
| Amortized      premiums, discounts and capitalized expenses related to      indebtedness |   |                                                                      | 7,001  |   |   |   | 5,367 |   |   |   | 9,140 |   |   |   | 3,418 |   |   |   | 1,784 |   |
| Estimated      interest expense within rental expense                                    |   |                                                                      | 27     |   |   |   | 43 |   |   |   | 302 |   |   |   | 696 |   |   |   | 1,059 |   |
| Total      fixed charges                                                                 |   | $                                                                         | 54,752 |   |   | $ | 52,147 |   |   | $ | 45,365 |   |   | $ | 21,417 |   |   | $ | 16,199 |   |
|                                                                                     |   |                                                                      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Ratio      of earnings to fixed charges                                                  |   |                                                                      | 1.54   |   |   |   | —   |   |   |   | —   |   |   |   | 0.10 |   |   |   | 4.03 |   |

| (1) | The      amount of additional earnings needed to obtain a ratio of earnings to      fixed charges of 1x was approximately $55.6 million, $238.9 million and      $19.3 million for the years ended December 31, 2008, 2007 and 2006,      respectively.  |
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