Exhibit 12

Computation of Ratio of Earnings to Fixed Charges

(In Thousands)

		Twelve Months Ended December 31,
		2010				2009				2008				2007				2006
Earnings:
Income from continuing operations before income taxes			467,913				788,345				725,595				428,957				550,920
Fixed charges, as shown below			249,804				69,277				69,402				61,336				50,227
Equity in income of investees			(21,428	)			(15,707	)			(11,140	)			(6,551	)			(1,201	)
Minority Interest—Gas			(11,845	)			(27,425	)			(43,191	)			(25,038	)			(29,608	)
Adjusted Earnings (Loss)			684,444				814,490				740,666				458,704				570,338
Fixed charges:
Interest on indebtedness, expensed or capitalized			218,425				43,290				48,345				45,414				35,818
Interest within rent expense			31,379				25,987				21,057				15,922				14,409
Total Fixed Charges			249,804				69,277				69,402				61,336				50,227
Ratio of Earnings to Fixed Charges			2.74				11.76				10.67				7.48				11.36