| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 306a | 331a |
| Accounts receivable (less reserve: 2024, $147; 2023, $123) | — | — |
| Customer | 961a | 950a |
| Other | 76a | 271a |
| Unbilled revenues (less reserve: 2024, $6; 2023, $4) | 485a | 428a |
| Fuel, materials and supplies | 511a | 505a |
| Prepayments | 136a | 103a |
| Regulatory assets | 320a | 293a |
| Other current assets | 85a | 51a |
| Total current assets | 2,880a | 2,932a |
| Property, plant and equipment | — | — |
| Regulated utility plant | 40,391a | 38,608a |
| Less: accumulated depreciation - regulated utility plant | 9,682a | 9,156a |
| Regulated utility plant, net | 30,709a | 29,452a |
| Non-regulated property, plant and equipment | 79a | 72a |
| Less: accumulated depreciation - non-regulated property, plant and equipment | 29a | 23a |
| Non-regulated property, plant and equipment, net | 50a | 49a |
| Construction work in progress | 2,390a | 1,917a |
| Property, plant and equipment, net | 33,149a | 31,418a |
| Other noncurrent assets | — | — |
| Regulatory assets | 2,060a | 1,874a |
| Goodwill | 2,247a | 2,247a |
| Other intangibles | 314a | 306a |
| Other noncurrent assets (less reserve for accounts receivable: 2024, $1; 2023, $2) | 419a | 459a |
| Total other noncurrent assets | 5,040a | 4,886a |
| Total assets | 41,069a | 39,236a |
| Liabilities and equity | — | — |
| Current liabilities | — | — |
| Short-term debt | 303a | 992a |
| Long-term debt due within one year | 551a | 1a |
| Accounts payable | 1,196a | 1,104a |
| Taxes | 103a | 130a |
| Interest | 157a | 124a |
| Dividends | 186a | 173a |
| Regulatory liabilities | 223a | 225a |
| Other current liabilities | 614a | 591a |
| Total current liabilities | 3,333a | 3,340a |
| Long-term debt | 15,952a | 14,611a |
| Deferred credits and other noncurrent liabilities | — | — |
| Deferred income taxes | 3,356a | 3,105a |
| Investment tax credits | 111a | 114a |
| Accrued pension obligations | 317a | 275a |
| Asset retirement obligations | 136a | 133a |
| Regulatory liabilities | 3,335a | 3,340a |
| Other deferred credits and noncurrent liabilities | 452a | 385a |
| Total deferred credits and other noncurrent liabilities | 7,707a | 7,352a |
| Equity | — | — |
| Common stock - $0.01 par value | 8a | 8a |
| Additional paid-in capital | 12,346a | 12,326a |
| Treasury stock | -928a | -948a |
| Earnings reinvested | 2,835a | 2,710a |
| Accumulated other comprehensive loss | -184a | -163a |
| Total equity | 14,077a | 13,933a |
| Total liabilities and equity | 41,069a | 39,236a |