Exhibit 12

Computation of Ratio of Earnings to Fixed Charges

(In thousands)

	Years Ended December 31,
	2008			2007			2006			2005			2004
Earnings:
Income from continuing operations before income taxes	$	725,595		$	428,957		$	550,920		$	654,684		$	82,563
Fixed charges, as shown below		69,402			61,336			50,227			42,979			49,349
Equity in income of investees		(11,140	)		(6,551	)		(1,201	)		(2,850	)		4,317
Minority Interest – Gas		(43,191	)		(25,038	)		(29,608	)		(9,484	)		—
Adjusted Earnings	$	740,666		$	458,704		$	570,338		$	685,329		$	136,229
Fixed charges:
Interest on indebtedness, expensed or capitalized	$	48,345		$	45,414		$	35,818		$	31,903		$	40,180
Interest within rent expense		21,057			15,922			14,409			11,076			9,169
Total Fixed Charges	$	69,402		$	61,336		$	50,227		$	42,979		$	49,349
Ratio of Earnings to Fixed Charges		10.67			7.48			11.36			15.95			2.76