EXHIBIT 12.1

Ratio of Earnings to Fixed Charges and
Ratio of Earnings to Fixed Charges and Preferred Stock Dividends

	Years Ended December 31,
	2010		2009			2008
	(In thousands, except ratios)
Income (loss) from continuing operations before income taxes	$	305,683	$	(33,037	)	$	427,656
Interest expense		60,087		28,292			29,039
Rental expense attributable to interest		932		505			338
Earnings	$	366,702	$	(4,240	)	$	457,033
Interest expense	$	60,087	$	28,292		$	29,039
Capitalized interest		184		66			1,233
Rental expense attributable to interest		932		505			338
Preferred stock dividends		—		—			—
Fixed charges and preferred stock dividends	$	61,203	$	28,863		$	30,610
Ratio of earnings to fixed charges (a)		5.99		(0.15	)		14.93
Insufficient coverage	$	—	$	(33,103	)	$	—
Ratio of earnings to fixed charges and preferred stock dividends (b)		5.99		(0.15	)		14.93
Insufficient coverage	$	—	$	(33,103	)	$	—

(a) The ratio has been computed by dividing earnings by fixed charges. For purposes of computing the ratio:

• earnings include income (loss) from continuing operations before income taxes, adjusted for interest expense and the portion of rental expense deemed to be representative of the interest component of rental expense; and

• fixed charges consist of interest expense, capitalized interest and the portion of rental expense deemed to be representative of the interest component of rental expense.

(b) The ratio has been computed by dividing earnings by fixed charges and preferred stock dividends. For purposes of computing the ratio:

• earnings include income (loss) from continuing operations before income taxes, adjusted for interest expense and the portion of rental expense deemed to be representative of the interest component of rental expense; and

• fixed charges and preferred stock dividends consist of interest expense, capitalized interest, the portion of rental expense deemed to be representative of the interest component of rental expense and preferred stock dividends.