Segments and Related Information (Tables)

3 Months Ended

Mar. 31, 2012

Continuing Operating Revenues and Income of Reportable Segments

	Regulated		Regulated		All			Reconciling			Consolidated
(Thousands of Dollars)	Electric		Natural Gas		Other			Eliminations			Total
Three Months Ended March 31, 2012
Operating revenues from external customers	$	1,936,782	$	621,035	$	20,262		$	-		$	2,578,079
Intersegment revenues		302		499		-			(801	)		-
Total revenues	$	1,937,084	$	621,534	$	20,262		$	(801	)	$	2,578,079
Income (loss) from continuing operations	$	143,221	$	50,202	$	(9,654	)	$	-		$	183,769

		Regulated		Regulated		All			Reconciling			Consolidated
(Thousands of Dollars)		Electric		Natural Gas		Other			Eliminations			Total

Three Months Ended March 31, 2011
Operating revenues from external customers	$	2,029,972	$	765,349	$	21,219		$	-		$	2,816,540
Intersegment revenues		339		799		-			(1,138	)		-
Total revenues	$	2,030,311	$	766,148	$	21,219		$	(1,138	)	$	2,816,540
Income (loss) from continuing operations	$	154,637	$	58,597	$	(9,767	)	$	-		$	203,467

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References+ Details