Note F – Other Financial Information Supplemental Information to Statement of Cash Flows | | | | | | | | | | | | | Six Months Ended
June 30, | | (Thousands of dollars) | 2025 | | 2024 | | Net (increase) decrease in operating working capital, excluding cash and cash equivalents: | | | | | (Increase) decrease in accounts receivable | $ | (976) | | | $ | 7,355 | | | (Increase) decrease in inventories | (9,040) | | | 2,170 | | | (Increase) decrease in prepaid expenses | (11,009) | | | 2,296 | | | Increase (decrease) in accounts payable and accrued liabilities | 24,141 | | | (9,689) | | | Increase (decrease) in income taxes payable | 4,789 | | | (1,006) | | | Net decrease in non-cash working capital | $ | 7,905 | | | $ | 1,126 | | | | | | | Supplementary disclosures: | | | | | Net cash income taxes (refunded) paid | $ | 423 | | | $ | 3,236 | | Interest paid, net of amounts capitalized of $2.9 million in 2025 and $7.8 million in 2024 | 44,577 | | | 38,262 | | | | | | | Non-cash investing activities: | | | | | Asset retirement costs capitalized | $ | 9,427 | | | $ | 16,175 | | | (Increase) decrease in capital expenditure accrual | 22,748 | | | (24,780) | |
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