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Discontinued Operations (Tables)
12 Months Ended
Dec. 31, 2011
Discontinued Operations [Abstract]  
Discontinued operations
Wexpro's operating results prior to the Spin-off are reflected in this Annual Report on Form 10-K as discontinued operations and summarized below:
 
   
Year Ended December 31,
 
   
2011
  
2010
  
2009
 
   
(in millions, except per share amounts)
 
Revenues
 $-  $131.2  $242.9 
              
Income before income taxes
  -   67.4   126.9 
Income taxes
  -   (24.2)  (46.2)
Discontinued operations, net of income taxes
 $-  $43.2  $80.7 
              
Earnings per common share attributable to QEP
            
Basic from discontinued operations
 $-  $0.25  $0.46 
Diluted from discontinued operations
  -   0.24   0.46