Cash Flow Disclosures

3 Months Ended

Mar. 31, 2015

Note F – Cash Flow Disclosures

Additional disclosures regarding cash flow activities are provided below.



	Three Months
		Ended March 31,
(Thousands of dollars)	2015		2014
Net (increase) decrease in operating working capital other than cash and cash equivalents:
Decrease (increase) in accounts receivable	$	302,602	(7,251)
Decrease (increase) in inventories		(60,562)	958
Increase in prepaid expenses		(6,825)	(42,128)
Decrease in deferred income tax assets		5,040	6,845
Decrease in accounts payable and accrued liabilities		(17,281)	(4,923)
Increase in current income tax liabilities		35,833	65,172
Total	$	258,807	18,673
Supplementary disclosures (including discontinued operations):
Cash income taxes paid, net of refunds	$	28,280	101,295
Interest paid, net of amounts capitalized		(64)	(4,303)

Non-cash investing activities, related to continuing operations:
Asset retirement costs capitalized	$	6,380	22,743
Decrease in capital expenditure accrual		239,572	146,790