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UNS ENERGY EARNINGS PER SHARE (Tables)
3 Months Ended
Mar. 31, 2014
Text Block [Abstract]  
Effects of Dilutive Common Stock on Weighted-Average Number of Shares
The following table illustrates the effect of dilutive securities on net income and weighted average Common Stock outstanding:
 
Three Months Ended March 31,
 
2014
 
2013
 
Thousands of Dollars
Numerator: Net Income
$
15,475

 
$
11,345

 
Thousands of Shares
Denominator:
 
Weighted Average Shares of Common Stock Outstanding:
 
 
 
Common Shares Issued
41,619

 
41,381

Fully Vested Deferred Stock Units
118

 
159

Total Weighted Average Common Stock Outstanding — Basic
41,737

 
41,540

Effect of Dilutive Securities:
 
 
 
Options and Stock Issuable Under Share-Based Compensation Plans
347

 
335

Total Weighted Average Common Stock Outstanding — Diluted
42,084

 
41,875


Shares of Common Stock Excluded from Computation of Diluted Earning Per Share
For the three months ended March 31, 2013, we excluded 24,000 contingently issuable shares from our diluted EPS computation as their effect would be anti-dilutive.