Note F – Other Financial Information Supplemental Information to Statement of Cash Flows | | | | | | | | | | | | | Three Months Ended
March 31, | | (Thousands of dollars) | 2026 | | 2025 | | Net (increase) decrease in operating working capital, excluding cash and cash equivalents: | | | | | (Increase) decrease in accounts receivable | $ | (120,525) | | | $ | (10,089) | | | (Increase) decrease in inventories | (479) | | | (15,851) | | | (Increase) decrease in prepaid expenses | 2,799 | | | 10,502 | | | Increase (decrease) in accounts payable and accrued liabilities | 8,752 | | | (13,560) | | | Increase (decrease) in income taxes payable | 1,481 | | | 6,214 | | | Net (increase) decrease in non-cash working capital | $ | (107,972) | | | $ | (22,784) | | | | | | | Supplementary disclosures: | | | | | | | | Interest paid, net of amounts capitalized of $3.9 million in 2026 and $1.1 million in 2025 | $ | 4,897 | | | $ | 6,347 | | | | | | | Non-cash investing activities: | | | | | Asset retirement costs capitalized | $ | 8,843 | | | $ | 8,996 | | | (Increase) decrease in capital expenditure accrual | (54,000) | | | (42,442) | |
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