Exhibit 12.1 

Ratio of Earnings to Fixed Charges

(Dollars in thousands)

	Year Ended December 31,
	2012			2013			2014			2015			2016
Income (Loss) from Continuing Operations	$	19,273		$	70,606		$	62,375		$	(215,235	)	$	(215,235	)
Plus (Less): Income Taxes (Benefit)		2,669			4,962			9,270			(5,633	)		(39,458	)
Fixed Charges		29,570			37,562			32,744			42,824			36,888
Less: Capitalized Interest		(5,524	)		(12,801	)		(8,396	)		(4,955	)		(4,955	)
Earnings Before Fixed Charges		45,988			100,329			95,993			(182,999	)		(222,760	)
Fixed Charges:
Interest Expense	$	23,244		$	23,821		$	23,332		$	36,946		$	33,486
Capitalized Interest		5,524			12,801			8,396			4,955			2,565
Estimated Portion of Rental Expense Equivalent to Interest		802			940			1,016			923			837
Total Fixed Charges		29,570			37,562			32,744			42,824			36,888
Ratio of Earnings to Fixed Charges		1.56			2.67			2.93			N/A			N/A

N/A – The ratio is less than 1.0. A deficiency of $259.6 million exists for the year ended December 31, 2016. The calculation of earnings includes $58.2 million of non-cash depreciation and amortization expense and $162.8 million of impairment charges. A deficiency of $225.8 million exists for the year ended December 31, 2015. The calculation of earnings includes $72.6 million of non-cash depreciation and amortization expense and $152.1 million of impairment charges.