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RECONCILIATION OF EARNINGS PER SHARE
 12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
RECONCILIATION OF EARNINGS PER SHARE
RECONCILIATION OF EARNINGS PER SHARE


Years ended December 31,
 
 
 
 
 
 
 
 
 
(in thousands, except per share amounts)
2017
 
 
2016
 
 
2015
 
 
Net
Income

Shares
Per Share Amount
Net
Loss

Shares
Per Share Amount
Net
Loss

Shares
Per Share Amount
Basic EPS
$
306,828

97,182

$
3.16

$
(167,513
)
94,476

$
(1.77
)
$
(945,731
)
76,078

$
(12.43
)
Effect of dilutive securities
 
 
 
 
 
 
 
 
 
Stock options
 
26

 
 
—

 
 
—

 
Non-vested restricted stock
 
300

 
 
—

 
 
—

 
Performance share awards
 
199

 
 
—

 
 
—

 
Diluted EPS
$
306,828

97,707

$
3.14

$
(167,513
)
94,476

$
(1.77
)
$
(945,731
)
76,078

$
(12.43
)


In periods of loss, shares that otherwise would have been included in diluted average commons shares outstanding are excluded. Energen had 330,690 and 355,915 of excluded shares for the years ended December 31, 2016 and 2015, respectively.
Energen had the following shares that were excluded from the computation of diluted EPS, as inclusion would be anti-dilutive.

Years ended December 31, (in thousands)
2017
2016
2015
Stock options
512

539

114

Performance share awards
131

—

—