Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

Schedule of earnings per weighted average common share outstanding

The following table presents the calculation of Pinnacle West’s basic and diluted earnings per share for the three and six months ended June 30, 2017 and 2016 (in thousands, except per share amounts):



	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Net income attributable to common shareholders	$	167,443	$	121,308	$	190,755	$	125,761
Weighted average common shares outstanding — basic	111,797		111,368		111,763		111,336
Net effect of dilutive securities:
Contingently issuable performance shares and restricted stock units	548		636		507		594
Weighted average common shares outstanding — diluted	112,345		112,004		112,270		111,930
Earnings per weighted-average common share outstanding
Net income attributable to common shareholders — basic	$	1.50	$	1.09	$	1.71	$	1.13
Net income attributable to common shareholders — diluted	$	1.49	$	1.08	$	1.70	$	1.12