CHANGE IN WORKING CAPITAL (Tables)

12 Months Ended

Dec. 31, 2012

CHANGE IN WORKING CAPITAL

Summary of change in working capital

Year Ended December 31 (millions of dollars)	2012	2011		2010
Decrease in accounts receivable and other	1	–		–
Increase/(decrease) in accounts payable and accrued liabilities	2	(3	)	3
Decrease/(increase) in operating working capital	3	(3	)	3