Exhibit 12.1

	Three Months Ended March 31,						Year ended December 31,
	2006			2005			2005			2004			2003			2002			2001
	Amounts in 000's
EARNINGS AS DEFINED:
Income (Loss) From Continuing Operations After Interest Charges	$	13,272		$	12,137		$	52,074		$	18,577		($	23,275	)	($	13,968	)	$	22,743
Income Taxes		7,672			7,055			28,379			325			(12,237	)		(4,491	)		10,260
Income (Loss) From Continuing Operations before Income Taxes		20,944			19,192			80,453			18,902			(35,512	)		(18,459	)		33,003
Fixed Charges		19,627			19,105			72,652			67,685			101,514			79,303			68,305
Capitalized Interest		(630	)		(290	)		(1,504	)		(2,849	)		(3,276	)		(1,858	)		(660	)
Total	$	39,941		$	38,007		$	151,601		$	83,738		$	62,726		$	58,986		$	100,648
FIXED CHARGES AS DEFINED:	$	19,627		$	19,105		$	72,652		$	67,685		$	101,514		$	79,303		$	68,305
Interest Expensed and Capitalized (1)		—			—			—			—			—			—			—
Total	$	19,627			19,105			72,652		$	67,685		$	101,514		$	79,303		$	68,305
RATIO OF EARNINGS TO FIXED CHARGES		2.04			1.99			2.09			1.24									1.47
DEFICIENCY	$	—		$	—		$	—		$	—		$	38,788		$	20,317		$	—

(1) Includes amortization of premiums, discounts, and capitalized debt expense and interest component of rent expense.