Exhibit 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(in thousands, except ratios)

	Six months ended June 30, 2009		12/31/08		12/31/07		12/31/06		12/31/05		12/31/04
Pre-tax income from continuing operations	$	43,268	$	192,084	$	206,344	$	159,906	$	150,289	$	89,518
Interest expense		21,454		26,209		17,287		10,247		6,048		2,067
Capitalized interest		12,626		23,209		18,104		9,339		-		-
Earnings	$	64,722	$	218,293	$	233,631	$	170,153	$	156,337	$	91,585
Ratio of earnings to fixed charges		1.9		4.4		6.3		8.7		25.8		44.3

For purposes of this table, “earnings” consists of income before income taxes from continuing operations plus fixed charges and less capitalized interest.  “Fixed charges” consists of interest expense and capitalized interest (for both continuing and discontinued operations).