Exhibit 12.1
RATIO OF EARNINGS TO FIXED CHARGES
The following table sets forth our ratio of earnings to fixed charges for the periods indicated (dollars in thousands):
| | Six Months Ended June 30, 2017 | | | Year ended December 31, | |
2016 | | | 2015 | | | 2014 | | | 2013 | | | 2012 | |
Fixed Charges: | | | | | | | | | | | | | | | | | | |
Interest expense | | $ | 6,997 | | | $ | 34,987 | | | $ | 43,446 | | | $ | 45,806 | | | $ | 39,152 | | | $ | 26,060 | |
Capitalized interest | | | 1,137 | | | | 1,226 | | | | 3,098 | | | | 1,710 | | | | 2,694 | | | | 2,663 | |
Amortization of public offering costs | | | 338 | | | | 1,933 | | | | 2,257 | | | | 1,740 | | | | 2,143 | | | | 1,146 | |
Portion of rent expense representative of interest | | | 2,814 | | | | 4,692 | | | | 3,998 | | | | 3,303 | | | | 4,864 | | | | 3,986 | |
Total fixed charges | | $ | 11,286 | | | $ | 42,838 | | | $ | 52,799 | | | $ | 52,559 | | | $ | 48,853 | | | $ | 33,855 | |
| | | | | | | | | | | | | | | | | | | | | | | | |
Earnings available for fixed charges: | | | | | | | | | | | | | | | | | | | | | | | | |
Net income (loss) from continuing operations before income taxes | | $ | 16,656 | | | $ | 1,113 | | | $ | (393,446 | ) | | $ | (1,615,128 | ) | | $ | (808,679 | ) | | $ | 119,484 | |
Fixed charges above | | | 11,286 | | | | 42,838 | | | | 52,799 | | | | 52,559 | | | | 48,853 | | | | 33,855 | |
Less interest capitalized | | | (1,137 | ) | | | (1,226 | ) | | | (3,098 | ) | | | (1,710 | ) | | | (2,694 | ) | | | (2,663 | ) |
Current period amortization of capitalized interest | | | 894 | | | | 2,022 | | | | 3,492 | | | | 4,895 | | | | 6,899 | | | | 5,725 | |
Total earnings available for fixed charges | | $ | 27,699 | | | $ | 44,747 | | | $ | (340,253 | ) | | $ | (1,559,384 | ) | | $ | (755,621 | ) | | $ | 156,401 | |
| | | | | | | | | | | | | | | | | | | | | | | | |
Earnings sufficient (insufficient) to cover fixed charges | | $ | 16,413 | | | $ | 1,909 | | | $ | (393,052 | ) | | $ | (1,611,943 | ) | | $ | (804,474 | ) | | $ | 122,546 | |
| | | | | | | | | | | | | | | | | | | | | | | | |
Ratio of earnings to fixed charges | | | 2.45 | x | | | 1.04 | x | | | N/A | | | | N/A | | | | N/A | | | | 4.62 | x |
N/A - represents coverage ratio of less than 1.