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ACCOUNTS RECEIVABLE AND OTHER (Tables)
6 Months Ended
Jun. 30, 2011
ACCOUNTS RECEIVABLE AND OTHER  
Schedule of accounts receivable and other
(unaudited)
 
June 30,
   
December 31,
 
(millions of dollars)
 
2011
   
2010
 
Accounts receivable
    7.6       7.6  
Inventory
    0.8       0.7  
Prepayments
    0.1       0.4  
      8.5       8.7