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CREDIT FACILITIES AND LONG-TERM DEBT (Tables)
12 Months Ended
Dec. 31, 2011
CREDIT FACILITIES AND LONG-TERM DEBT  
Components of debt
December 31 (millions of dollars)
 
2011

 
2010

   

Senior Credit Facility due 2016   363.0   483.0    
4.65% Senior Notes due 2021   349.4      
6.89% Series C Senior Notes due 2012   3.1   3.9    
3.82% Series D Senior Notes due 2017   27.0   27.0    

    742.5   513.9    
Less: current portion of long-term debt   3.1   483.8    

    739.4   30.1    

Principal repayments required on long-term debt
(millions of dollars)
   
   

2012   3.1    
2013   3.5    
2014   3.6    
2015   3.7    
2016   3.9    
Thereafter   724.7    

    742.5