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NET INCOME PER COMMON UNIT (Tables)
9 Months Ended
Sep. 30, 2012
NET INCOME PER COMMON UNIT  
Schedule of net income per common unit
 
Three months ended
   
Nine months ended
 
(unaudited)
 
September 30,
   
September 30,
 
(millions of dollars, except per unit)
 
2012
   
2011
   
2012
   
2011
 
                         
Net income (a)
    35       41       107       119  
Net income allocated to General Partner
    (1 )     (1 )     (2 )     (2 )
Net income allocable to common units
    34       40       105       117  
Weighted average common units outstanding (millions)
    53.5       53.5       53.5       50.2  
Net income per common unit
    $0.64       $0.75       $1.96       $2.33  
 
(a)  
25 percent interests in each of GTN and Bison were acquired in May 2011.