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v3.23.1

Other Financial Information | 3 Months Ended
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Mar. 31, 2023
Other Financial Information [Abstract] |
Other Financial Information | Note F – Other Financial Information Additional disclosures regarding cash flow activities are provided below.
| Three Months Ended March 31,
(Thousands of dollars) | 2023 |  | 2022
Net (increase) decrease in operating working capital, excluding cash and cash equivalents: |  |  |
(Increase) in accounts receivable | $ | (3,976) |  |  | $ | (117,928) |
(Increase) decrease in inventories | (9,296) |  |  | (4,541) |
(Increase) decrease in prepaid expenses | 3,813 |  |  | (515) |
Increase (decrease) in accounts payable and accrued liabilities ¹ | (63,800) |  |  | 40,426 |
Increase (decrease) in income taxes payable | (1,772) |  |  | 1,636 |
Net (increase) in noncash operating working capital | $ | (75,031) |  |  | $ | (80,922) |
Supplementary disclosures: |  |  |
Cash income taxes paid, net of refunds | $ | 3,342 |  |  | $ | 103 |
Interest paid, net of amounts capitalized of $3.3 million in 2023 and $5.3 million in 2022 | 19,358 |  |  | 40,181 |
Non-cash investing activities: |  |  |
Asset retirement costs capitalized | $ | 2,396 |  |  | $ | 3,889 |
(Increase) decrease in capital expenditure accrual | 15,973 |  |  | (49,352) |
1 Excludes payable balances relating to mark-to-market of derivative instruments and contingent consideration relating to acquisitions.

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