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CHANGE IN WORKING CAPITAL
9 Months Ended
Sep. 30, 2012
CHANGE IN WORKING CAPITAL  
CHANGE IN WORKING CAPITAL
NOTE 8                 CHANGE IN WORKING CAPITAL
 
(unaudited)
 
Nine months ended September 30,
 
(millions of dollars)
 
2012
   
2011
 
             
Increase/(decrease) in accounts payable and accrued liabilities
    2       (1 )
Increase in accrued interest
    5       5  
Decrease in operating working capital
    7       4