Segment Information (Tables)

6 Months Ended

Jun. 30, 2012

Segment Information [Abstract]

Results from Continuing Operations by Reportable Segment

	Regulated		Regulated			All			Reconciling			Consolidated
(Thousands of Dollars)	Electric		Natural Gas			Other			Eliminations			Total
Three Months Ended June 30, 2012
Operating revenues from external customers	$	179,105	$	14,830		$	238		$	-		$	194,173
Intersegment revenues		109		61			-			(170	)		-
Total revenues	$	179,214	$	14,891		$	238		$	(170	)	$	194,173
Net income (loss)	$	6,127	$	(947	)	$	562		$	-		$	5,742
Three Months Ended June 30, 2011
Operating revenues from external customers	$	178,692	$	19,880		$	278		$	-		$	198,850
Intersegment revenues		116		276			-			(392	)		-
Total revenues	$	178,808	$	20,156		$	278		$	(392	)	$	198,850
Net income (loss)	$	9,139	$	(618	)	$	(43	)	$	-		$	8,478

	Regulated		Regulated		All		Reconciling			Consolidated
(Thousands of Dollars)	Electric		Natural Gas		Other		Eliminations			Total
Six Months Ended June 30, 2012
Operating revenues from external customers	$	361,106	$	56,322	$	544	$	-		$	417,972
Intersegment revenues		196		264		-		(460	)		-
Total revenues	$	361,302	$	56,586	$	544	$	(460	)	$	417,972
Net income	$	17,375	$	2,453	$	792	$	-		$	20,620
Six Months Ended June 30, 2011
Operating revenues from external customers	$	363,060	$	73,363	$	535	$	-		$	436,958
Intersegment revenues		216		838		-		(1,054	)		-
Total revenues	$	363,276	$	74,201	$	535	$	(1,054	)	$	436,958
Net income	$	19,520	$	3,592	$	9	$	-		$	23,121