CHANGE IN WORKING CAPITAL (Tables)

12 Months Ended

Dec. 31, 2011

CHANGE IN WORKING CAPITAL

CHANGE IN WORKING CAPITAL

Year Ended December 31 (millions of dollars)	2011		2010		2009(a)
(Increase)/decrease in accounts receivable and other	(0.1	)	(0.1	)	2.8
(Decrease)/increase in accounts payable and accrued liabilities	(2.7	)	3.2		(0.8	)
Decrease in accrued interest	(0.2	)	–		(2.4	)
	(3.0	)	3.1		(0.4	)
Increase in investing working capital	–		–		(2.9	)
(Increase)/decrease in operating working capital	(3.0	)	3.1		2.5

^(a)

Recast as discussed in Notes 2 and 5.