Cash Flow Disclosures

9 Months Ended

Sep. 30, 2012

Cash Flow Disclosures

Note F – Cash Flow Disclosures

Additional disclosures regarding cash flow activities are provided below.

	Nine Months Ended September 30,
(Thousands of dollars)	2012			2011
Net (increase) decrease in operating working capital other than cash and cash equivalents:
Increase in accounts receivable	$	(98,163	)		(314,908	)
Increase in inventories		(168,840	)		(31,865	)
Increase in prepaid expenses		(148,904	)		(28,693	)
Decrease in deferred income tax assets		23,939			4,797
Increase in accounts payable and accrued liabilities		94,457			189,833
Increase (decrease) in current income tax liabilities		80,271			(124,385	)
Total	$	(217,240	)		(305,221	)
Supplementary disclosures:
Cash income taxes paid	$	414,676			608,065
Interest paid, net of amounts capitalized		1,077			18,124