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Earnings Per Share
9 Months Ended
Sep. 30, 2016
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share

Basic EPS is computed by dividing net income attributable to NiSource by the weighted-average number of shares of common stock outstanding for the period. The weighted-average shares outstanding for diluted EPS includes the incremental effects of the various long-term incentive compensation plans. The numerator in calculating both basic and diluted EPS for each period is reported net income attributable to NiSource. The computation of diluted average common shares is as follows:
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
(in thousands)
2016
 
2015
 
2016
 
2015
Denominator
 
 
 
 
 
 
 
Basic average common shares outstanding
322,318

 
318,090

 
321,445

 
317,390

Dilutive potential common shares:
 
 
 
 
 
 
 
Shares contingently issuable under employee stock plans
228

 

 
146

 

Shares restricted under employee stock plans
1,372

 
3,375

 
1,606

 
3,328

Diluted Average Common Shares
323,918

 
321,465

 
323,197

 
320,718