Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2015

Selected Quarterly Financial Information [Line Items]

Selected Quarterly Financial Data (Unaudited)

Selected Quarterly Financial Data (Unaudited)

Consolidated quarterly financial information for 2015 and 2014 is provided in the tables below (dollars in thousands, except per share amounts).  Weather conditions cause significant seasonal fluctuations in our revenues; therefore, results for interim periods do not necessarily represent results expected for the year.

	2015 Quarter Ended								2015
	March 31,		June 30,		September 30,		December 31,		Total
Operating revenues	$	671,219	$	890,648	$	1,199,146	$	734,430	$	3,495,443
Operations and maintenance	214,944		210,965		220,449		222,019		868,377
Operating income	67,684		231,973		445,111		109,834		854,602
Income taxes	7,947		67,371		139,555		22,847		237,720
Net income	20,727		127,507		261,978		45,978		456,190
Net income attributable to common shareholders	16,122		122,902		257,116		41,117		437,257
Earnings Per Share:
Net income attributable to common shareholders — Basic	$	0.15	$	1.11	$	2.32	$	0.37	$	3.94
Net income attributable to common shareholders — Diluted	0.14		1.10		2.30		0.37		3.92

	2014 Quarter Ended								2014
	March 31,		June 30,		September 30,		December 31,		Total
Operating revenues	$	686,251	$	906,264	$	1,172,667	$	726,450	$	3,491,632
Operations and maintenance	212,882		211,222		223,418		260,503		908,025
Operating income	75,170		254,113		421,775		60,184		811,242
Income taxes	6,405		74,540		134,753		5,007		220,705
Net income	24,691		141,384		248,086		9,535		423,696
Net income attributable to common shareholders	15,766		132,458		243,961		5,410		397,595
Earnings Per Share:
Net income attributable to common shareholders — Basic	$	0.14	$	1.20	$	2.20	$	0.05	$	3.59
Net income attributable to common shareholders — Diluted	0.14		1.19		2.20		0.05		3.58

ARIZONA PUBLIC SERVICE COMPANY

Selected Quarterly Financial Information [Line Items]

Selected Quarterly Financial Data (Unaudited)

Selected Quarterly Financial Data (Unaudited) - APS

APS's quarterly financial information for 2015 and 2014 is as follows (dollars in thousands):

	2015 Quarter Ended,								2015
	March 31,		June 30,		September 30,		December 31,		Total
Operating revenues	$	670,668	$	889,723	$	1,198,380	$	733,586	$	3,492,357
Operations and maintenance	209,947		208,031		216,011		219,146		853,135
Operating income	61,333		162,704		301,238		86,709		611,984
Net income attributable to common shareholder	19,868		125,362		261,187		43,857		450,274

	2014 Quarter Ended,								2014
	March 31,		June 30,		September 30,		December 31,		Total
Operating revenues	$	685,545	$	905,578	$	1,172,190	$	725,633	$	3,488,946
Operations and maintenance	208,285		208,059		212,430		253,668		882,442
Operating income	69,635		180,394		287,928		54,835		592,792
Net income attributable to common shareholder	19,518		134,916		251,047		15,738		421,219