Other Financial Information

9 Months Ended

Sep. 30, 2017

Other Financial Information [Abstract]

Other Financial Information

Note E – Other Financial Information

Additional disclosures regarding cash flow activities are provided below.

	Nine Months Ended September 30,
(Thousands of dollars)	2017		2016
Net (increase) decrease in operating working capital other than    cash and cash equivalents:
Decrease in accounts receivable	$	90,614	75,841
Decrease (increase) in inventories		5,869	(15,768)
Decrease in prepaid expenses		25,285	122,399
Decrease in other		–	720
Decrease in accounts payable and accrued liabilities		(115,977)	(376,310)	*
(Decrease) increase in current income tax liabilities		(4,721)	40,500
Net (increase) decrease in noncash operating working capital	$	1,070	(152,618)
Supplementary disclosures:
Cash income taxes paid, net of refunds	$	25,118	(3,911)
Interest paid, net of amounts capitalized of $3,338 in 2017   and $3,318 in 2016		95,899	52,287
Non-cash investing activities:
Asset retirement costs capitalized	$	38,992	13,959
Decrease in capital expenditure accrual		42,403	179,203

*2016 balance included payments for deepwater rig contract exit of $266.6 million.