| | | | | | | | | | | | | | | | | |
| As at | Note | | September 30, 2025 | | December 31, 2024 |
| | | | | |
| ASSETS | | | | | |
| Current assets | | | | | |
| Cash and cash equivalents | | | $ | 1,043,935 | | | $ | 856,797 | |
| | | | | |
| | | | | |
| | | | | |
| Accounts receivable and other | 4 | | 209,636 | | | 190,676 | |
| Inventories | 5 | | 289,493 | | | 278,995 | |
| Current other assets | 6 | | — | | | 138,932 | |
| Current derivative assets | 16 | | 2,377 | | | 52 | |
| Assets held for sale | | | 13,551 | | | 16,686 | |
| | | 1,558,992 | | | 1,482,138 | |
| Restricted cash | | | 2,281 | | | 2,177 | |
| Deferred tax assets | | | 19,487 | | | 19,487 | |
| Other assets | 6 | | 173,068 | | | 120,418 | |
| Non-current derivative assets | 16 | | 12,614 | | | — | |
| Property, plant and equipment | | | 4,626,398 | | | 4,118,782 | |
| Goodwill | | | 92,591 | | | 92,591 | |
| | | $ | 6,485,431 | | | $ | 5,835,593 | |
| LIABILITIES & EQUITY | | | | | |
| Current liabilities | | | | | |
| Accounts payable and accrued liabilities | | | $ | 472,273 | | | $ | 366,690 | |
| Current portion of lease liabilities | | | 5,759 | | | 4,693 | |
| | | | | |
| Current portion of asset retirement obligation | | | 5,327 | | | 5,071 | |
| Current derivative liabilities | 16 | | 64,142 | | | 25,587 | |
| Liabilities associated with assets held for sale | | | 10,459 | | | 10,133 | |
| | | 557,960 | | | 412,174 | |
| Debt | 7 | | 1,258,517 | | | 915,425 | |
| Lease liabilities | | | 9,622 | | | 10,030 | |
| Employee benefit plan obligations | | | 12,618 | | | 10,910 | |
| Asset retirement obligations | | | 133,864 | | | 127,925 | |
| Non-current derivative liabilities | 16 | | 78,971 | | | 35,743 | |
| Deferred income tax liabilities | | | 344,128 | | | 434,939 | |
| | | 2,395,680 | | | 1,947,146 | |
| Equity | | | | | |
| Share capital | 12 | | 3,379,147 | | | 3,433,778 | |
| Shares held in trust for restricted share units | 12 | | (12,891) | | | (12,970) | |
| Contributed surplus | | | 2,551,436 | | | 2,612,762 | |
| Accumulated other comprehensive income | | | 6,735 | | | 56,183 | |
| Deficit | | | (1,823,222) | | | (2,193,163) | |
| Total equity attributable to shareholders of the Company | | | 4,101,205 | | | 3,896,590 | |
| Attributable to non-controlling interests | | | (11,454) | | | (8,143) | |
| | | 4,089,751 | | | 3,888,447 | |
| | | $ | 6,485,431 | | | $ | 5,835,593 | |
