Note F – Other Financial Information Supplemental Information to Statement of Cash Flows | | | | | | | | | | | | | Six Months Ended
June 30, | | (Thousands of dollars) | 2026 | | 2025 | | Net (increase) decrease in operating working capital, excluding cash and cash equivalents: | | | | | (Increase) decrease in accounts receivable | $ | (96,506) | | | $ | (976) | | | (Increase) decrease in inventories | (6,464) | | | (9,040) | | | (Increase) decrease in prepaid expenses | (3,897) | | | (11,009) | | | Increase (decrease) in accounts payable and accrued liabilities | 52,269 | | | 24,141 | | | Increase (decrease) in income taxes payable | 14,121 | | | 4,789 | | | Net (increase) decrease in non-cash working capital | $ | (40,477) | | | $ | 7,905 | | | | | | | Supplementary disclosures: | | | | | | | | Interest paid, net of amounts capitalized of $8.8 million in 2026 and $2.9 million in 2025 | $ | 35,442 | | | $ | 44,577 | | | | | | | Non-cash investing activities: | | | | | Asset retirement costs capitalized | $ | 8,918 | | | $ | 9,427 | | | (Increase) decrease in capital expenditure accrual | (52,007) | | | 22,748 | |
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