Exhibit 12.1

Exhibit 12.1 Computation of Ratio of Earnings to Fixed Charges and Ratio of Fixed Charges and Preferred Stock Dividends to Earnings

Amounts in thousands

		Three months ended			Year Ended			Year Ended			Year Ended			Year Ended			Year Ended			Year Ended
		3/31/2011			12/31/2010			12/31/2009			12/31/2008			12/31/2007			12/31/2006			12/31/2005
Earnings:
Add:	Pre-tax income/loss from continuing operations before adjustment for noncontrolling interest or income/loss from equity investees	$	(8,053	)	$	(55,894	)	$	(55,601	)	$	(49,332	)	$	(14,345	)	$	(57,755	)	$	(31,446	)
	Fixed charges		13,134			54,713			42,517			34,493			25,036			15,312			15,844
	Amortization of capitalized interest		1,020			4,095			4,355			3,336			1,882			916			953
			6,101			2,914			(8,729	)		(11,503	)		12,573			(41,527	)		(14,649	)
Less:	Interest capitalized		-			-			1,761			4,714			9,277			7,628			5,495
	Noncontrolling interest in pre-tax loss of subidiaries that have not incurred fixed charges		(13	)		(9	)		-			-			(763	)		(836	)		(7	)
			(13	)		(9	)		1,761			4,714			8,514			6,792			5,488
Total Earnings		$	6,114		$	2,923		$	(10,490	)	$	(16,217	)	$	4,059		$	(48,319	)	$	(20,137	)
Fixed Charges:
	Interest expensed	$	12,097		$	46,270		$	34,072		$	27,277		$	14,887		$	7,169		$	6,728
	Interest capitalized		-			-			1,761			4,714			9,277			7,628			5,495
	Amortized capitalized expense related to indebtedness		1,037			8,443			6,684			2,502			872			515			3,621
Total Fixed Charges		$	13,134		$	54,713		$	42,517		$	34,493		$	25,036		$	15,312		$	15,844
Preferred Stock Dividends			-			-			-			-			-			-			-
Ratio of earnings to fixed charges (1)			0.47			0.05			(0.25	)		(0.47	)		0.16			(3.16	)		(1.27	)
Ratio of fixed charges and preferred stock dividends to earnings (1)			2.15			18.72			(4.05	)		(2.13	)		6.17			(0.32	)		(0.79	)
(1) Fixed charges in excess of earnings		$	7,020		$	51,790		$	53,007		$	50,710		$	20,977		$	63,631		$	35,981