Exhibit 12.01

Computation of Ratio of Earnings to Fixed Charges
(dollars in thousands)

	Nine Months Ended September 30, 2013		Year Ended December 31,
			2012		2011		2010		2009		2008
Pre-tax income (loss) from continuing operations adjusted to exclude income or loss from equity investees	$	10,809	$	30,788	$	16,753	$	27,087	$	140,981	$	(303,203	)
Distributed income of equity investees		40		384		266		222		326		7,355
Fixed charges:
Interest expense and amortization of debt discount and premium on all indebtedness		6,138		4,965		2,508		1,155		3,645		72,751
Rentals		61		88		58		54		77		251
Total fixed charges	$	6,199	$	5,053	$	2,566	$	1,209	$	3,722	$	73,002
Pre-tax income (loss) from continuing operations adjusted to exclude income or loss from equity investees plus fixed charges and distributed income of equity investees	$	17,048	$	36,225	$	19,585	$	28,518	$	145,029	$	(222,846	)
Ratio of earnings to fixed charges		2.8		7.2		7.6		23.6		39.0		(A)

(A) Due to the Company's loss in 2008, the ratio coverage in this year was less than 1:1. The Company would have had to generate additional earnings of $295,848 to achieve coverage of 1:1 in this year.