Segment Information (Tables)

6 Months Ended

Jun. 30, 2014

The Company has two operating segments that are also the Company’s two reportable segments, referred to as Regulated Businesses and Market-Based Operations. The following table includes the Company’s summarized segment information:

	As of or for the Three Months Ended
	June 30, 2014
	Regulated Businesses		Market-Based Operations		Other			Consolidated
Net operating revenues	$	678,101	$	85,403	$	(4,345	)	$	759,159
Depreciation and amortization		98,181		1,635		6,046			105,862
Total operating expenses, net		435,429		73,033		(3,077	)		505,385
Income (loss) before income taxes		182,418		12,968		(13,897	)		181,489
Total assets		13,857,864		293,696		1,274,887			15,426,447
Capital expenditures		207,985		1,330		0			209,315

	As of or for the Three Months Ended
	June 30, 2013
	Regulated Businesses		Market-Based Operations		Other			Consolidated
Net operating revenues	$	647,897	$	80,755	$	(4,387	)	$	724,265
Depreciation and amortization		93,473		1,753		6,140			101,366
Total operating expenses, net		419,517		67,321		(4,460	)		482,378
Income (loss) before income taxes		170,007		14,207		(16,495	)		167,719
Total assets		13,138,907		262,453		1,593,127			14,994,487
Capital expenditures		215,091		1,653		0			216,744

	As of or for the Six Months Ended
	June 30, 2014
	Regulated Businesses		Market-Based Operations		Other			Consolidated
Net operating revenues	$	1,285,745	$	164,201	$	(8,841	)	$	1,441,105
Depreciation and amortization		196,964		3,239		11,737			211,940
Total operating expenses, net		867,386		141,845		(7,996	)		1,001,235
Income (loss) before income taxes		297,446		23,599		(26,550	)		294,495
Total assets		13,857,864		293,696		1,274,887			15,426,447
Capital expenditures		399,564		2,217		0			401,781

	As of or for the Six Months Ended
	June 30, 2013
	Regulated Businesses		Market-Based Operations		Other			Consolidated
Net operating revenues	$	1,221,134	$	148,091	$	(8,823	)	$	1,360,402
Depreciation and amortization		185,330		3,512		12,173			201,015
Total operating expenses, net		835,033		129,702		(10,453	)		954,282
Income (loss) before income taxes		268,788		19,878		(32,136	)		256,530
Total assets		13,138,907		262,453		1,593,127			14,994,487
Capital expenditures		427,356		2,474		0			429,830

- 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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