Segment Reporting (tables)

3 Months Ended

Mar. 31, 2012

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Three Months Ended March 31,
			Non-Utility
Thousands		Utility		Gas Storage		Other		Total
2012
Net operating revenues	$	133,150	$	6,679	$	39	$	139,868
Depreciation and amortization		16,338		1,612		-		17,950
Income from operations		75,964		2,679		23		78,666
Net income		39,791		806		10		40,607
Total assets at March 31, 2012		2,424,583		286,756		15,923		2,727,262
2011
Net operating revenues	$	129,162	$	5,304	$	42	$	134,508
Depreciation and amortization		15,914		1,395		-		17,309
Income from operations		76,124		1,716		22		77,862
Net income		40,130		688		(45)		40,773
Total assets at March 31, 2011		2,304,731		244,403		22,419		2,571,553

Total assets at December 31, 2011	$	2,435,888	$	294,637	$	16,049	$	2,746,574

- 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.

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