| Selected Balance Sheet Data |
| | | | | | | | | | | | | | | | (Millions of Dollars) | | June 30, 2025 | | Dec. 31, 2024 | | Accounts receivable, net | | | | | | Accounts receivable | | $ | 518 | | | $ | 572 | | | Less allowance for bad debts | | (37) | | | (42) | | | Accounts receivable, net | | $ | 481 | | | $ | 530 | |
| | | | | | | | | | | | | | | | (Millions of Dollars) | | June 30, 2025 | | Dec. 31, 2024 | | Inventories | | | | | | Materials and supplies | | $ | 245 | | | $ | 234 | | | Fuel | | 80 | | | 81 | | | Natural gas | | 10 | | | 24 | | | Total inventories | | $ | 335 | | | $ | 339 | |
| | | | | | | | | | | | | | | | (Millions of Dollars) | | June 30, 2025 | | Dec. 31, 2024 | | Property, plant and equipment, net | | | | | | Electric plant | | $ | 23,678 | | | $ | 23,218 | | | Natural gas plant | | 2,505 | | | 2,472 | | | Common and other property | | 1,507 | | | 1,450 | | Plant to be retired (a) | | 521 | | | 554 | | | Construction work in progress | | 2,159 | | | 1,522 | | | Total property, plant and equipment | | 30,370 | | | 29,216 | | | Less accumulated depreciation | | (9,057) | | | (8,753) | | | Nuclear fuel | | 3,623 | | | 3,491 | | | Less accumulated amortization | | (3,149) | | | (3,094) | | | Property, plant and equipment, net | | $ | 21,787 | | | $ | 20,860 | |
(a)Amounts include Sherco 1 and 3 and A.S. King. Balance is presented net of accumulated depreciation.
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