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NET INCOME PER COMMON UNIT (Tables)
12 Months Ended
Dec. 31, 2012
NET INCOME PER COMMON UNIT  
Schedule of net income per common unit
(millions of dollars, except per unit)
 
2012

 
2011

 
2010  

   

Net income(a)   137   157   137    
Net income allocated to General Partner   (3 ) (3 ) (3)  

Net income allocable to common units   134   154   134    

Weighted average common units outstanding (millions) – basic and diluted   53.5   51.1   46.2    
Net income per common unit – basic and diluted   $2.51   $3.02   $2.91    

(a)
25 percent interests in each of GTN and Bison were acquired May 2011.