Other Financial Information

6 Months Ended

Jun. 30, 2022

Other Financial Information [Abstract]

Other Financial Information

Note G – Other Financial Information

Additional disclosures regarding cash flow activities are provided below.

	Six Months Ended June 30,
(Thousands of dollars)	2022		2021
Net decrease (increase) in operating working capital, excluding cash and cash equivalents:
(Increase) in accounts receivable ¹	$	(263,104)	(104,775)
(Increase) decrease in inventories	(10,092)		8,938
(Increase) in prepaid expenses	(1,693)		(1,945)
Increase in accounts payable and accrued liabilities ¹	147,790		124,699
Increase (decrease) in income taxes payable	5,501		(352)
Net decrease (increase) in noncash operating working capital	$	(121,598)	26,565
Supplementary disclosures:
Cash income taxes paid, net of refunds	$	1,783	1,474
Interest paid, net of amounts capitalized of $10.4 million in 2022 and $7.4 million in 2021	78,747		80,546
Non-cash investing activities:
Asset retirement costs capitalized 2	$	9,007	6,669
(Increase) decrease in capital expenditure accrual	(1,929)		20,614

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

2 2021 Excludes non-cash capitalized cost offset by Terra Nova impairment of $74.4 million.