XML 99 R13.htm IDEA: XBRL DOCUMENT v2.4.0.6
Earnings Per Share
 12 Months Ended
Dec. 31, 2012
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share

Basic earnings per share is calculated as net income attributable to HollyFrontier stockholders divided by the average number of shares of common stock outstanding. Diluted earnings per share assumes, when dilutive, the issuance of the net incremental shares from variable restricted and variable performance shares. The following is a reconciliation of the denominators of the basic and diluted per share computations for net income attributable to HollyFrontier stockholders:
 
 
Years Ended December 31,
 
 
2012
 
2011
 
2010
 
 
(In thousands, except per share data)
Earnings attributable to HollyFrontier stockholders
 
$
1,727,172

 
$
1,023,397

 
$
103,964

Average number of shares of common stock outstanding
 
205,289

 
158,486

 
106,436

Effect of dilutive variable restricted shares and performance share units (1)
 
895

 
808

 
782

Average number of shares of common stock outstanding assuming dilution
 
206,184

 
159,294

 
107,218

Basic earnings per share
 
$
8.41

 
$
6.46

 
$
0.98

Diluted earnings per share
 
$
8.38

 
$
6.42

 
$
0.97

 
 
 
 
 
 
 
(1) Excludes anti-dilutive restricted and performance share units of:
 
166

 
—

 
—