Earnings Per Share

12 Months Ended

Dec. 31, 2018

EARNINGS PER SHARE

Basic earnings per share are computed based on the weighted average number of common shares outstanding during the year. Diluted earnings per share are computed using the weighted average number of common shares outstanding and the effect of dilutive potential common shares outstanding during the year using the treasury stock method. Potential common shares consist of employee stock purchase plan shares and contingently issuable time-based and performance-based restricted stock units, along with associated dividend equivalent rights.

Net income attributable to PGE common shareholders is the same for both the basic and diluted earnings per share computation. The reconciliations of the denominators of the basic and diluted earnings per share computations are as follows (in thousands):



	Years Ended December 31,
	2018	2017	2016
Weighted average common shares outstanding—basic	89,215	89,056	88,896
Dilutive effect of potential common shares	132	120	158
Weighted average common shares outstanding—diluted	89,347	89,176	89,054