Other Financial Information

9 Months Ended

Sep. 30, 2023

Other Financial Information [Abstract]

Other Financial Information

Note F – Other Financial Information

Additional disclosures regarding cash flow activities are provided below.

	Nine Months Ended September 30,
(Thousands of dollars)	2023		2022
Net (increase) decrease in operating working capital, excluding cash and cash equivalents:
(Increase) in accounts receivable	$	(69,689)	$	(130,792)
(Increase) decrease in inventories	(6,609)		(410)
(Increase) in prepaid expenses	(3,364)		(8,561)
Increase (decrease) in accounts payable and accrued liabilities ¹	(60,582)		61,139
Increase (decrease) in income taxes payable	(2,544)		18,750
Net increase in noncash working capital	$	(142,788)	$	(59,874)
Supplementary disclosures:
Cash income taxes paid, net of refunds	$	12,737	$	16,493
Interest paid, net of amounts capitalized of $10.4 million in 2023 and $13.2 million in 2022	78,169		112,332
Non-cash investing activities:
Asset retirement costs capitalized	$	16,219	$	29,327
Decrease in capital expenditure accrual	75,760		34,853

1 Excludes payable balances relating to mark-to-market of derivative instruments and contingent consideration relating to acquisitions.