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ACCOUNTS RECEIVABLE AND OTHER (Tables)
9 Months Ended
Sep. 30, 2011
ACCOUNTS RECEIVABLE AND OTHER 
Schedule of accounts receivable and other
 
(unaudited)
  
September 30,
  
December 31,
(millions of dollars)
  
2011
  
2010
Accounts receivable
     7.6       7.6  
Inventory
     0.9       0.7  
Prepayments
     0.4       0.4  
      8.9       8.7