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Earnings Per Share
 3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share
 
We compute basic and diluted earnings per share ("EPS") in accordance with the two-class method. Net income attributable to Ensco used in our computations of basic and diluted EPS is adjusted to exclude net income allocated to non-vested shares granted to our employees and non-employee directors. Weighted-average shares outstanding used in our computation of diluted EPS is calculated using the treasury stock method and excludes non-vested shares.
    
The following table is a reconciliation of income from continuing operations attributable to Ensco shares used in our basic and diluted EPS computations for the quarters ended March 31, 2015 and 2014 (in millions):
 
2015
 
2014
Income from continuing operations attributable to Ensco
$
324.9

 
$
294.6

Income from continuing operations allocated to non-vested share awards
(3.7
)
 
(3.0
)
Income from continuing operations attributable to Ensco shares
$
321.2

 
$
291.6

 
The following table is a reconciliation of the weighted-average shares used in our basic and diluted EPS computations for the quarters ended March 31, 2015 and 2014 (in millions):
 
2015
 
2014
Weighted-average shares - basic
231.9

 
231.3

Potentially dilutive shares
—

 
.1

Weighted-average shares - diluted
231.9

 
231.4

 
Antidilutive share options totaling 500,000 and 400,000 were excluded from the computation of diluted EPS for the quarters ended March 31, 2015 and 2014, respectively.