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Report of Business Segments (Tables) | 9 Months Ended
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Sep. 30, 2024
Segment Reporting [Abstract] |
Summary of OGE Energy's Business Segments | The following tables present the results of OGE Energy's business segments for the three and nine months ended September 30, 2024 and 2023.
Three Months Ended September 30, 2024 |  | Electric Company |  |  | Other Operations |  |  | Eliminations |  |  | Total |
(In millions) |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 965.4 |  |  | $ | — |  |  | $ | — |  |  | $ | 965.4 |
Fuel, purchased power and direct transmission expense |  |  | 350.1 |  |  |  | — |  |  |  | — |  |  |  | 350.1 |
Other operation and maintenance |  |  | 131.4 |  |  |  | — |  |  |  | — |  |  |  | 131.4 |
Depreciation and amortization |  |  | 144.0 |  |  |  | — |  |  |  | — |  |  |  | 144.0 |
Taxes other than income |  |  | 26.7 |  |  |  | — |  |  |  | — |  |  |  | 26.7 |
Operating income |  |  | 313.2 |  |  |  | — |  |  |  | — |  |  |  | 313.2 |
Other income |  |  | 11.6 |  |  |  | — |  |  |  | (0.9 | ) |  |  | 10.7 |
Interest expense |  |  | 54.1 |  |  |  | 11.0 |  |  |  | (0.9 | ) |  |  | 64.2 |
Income tax expense (benefit) |  |  | 45.7 |  |  |  | (4.7 | ) |  |  | — |  |  |  | 41.0 |
Net income (loss) |  | $ | 225.0 |  |  | $ | (6.3 | ) |  | $ | — |  |  | $ | 218.7 |
Total assets |  | $ | 13,360.5 |  |  | $ | 134.7 |  |  | $ | (19.4 | ) |  | $ | 13,475.8 |
Three Months Ended September 30, 2023 |  | Electric Company |  |  | Other Operations |  |  | Eliminations |  |  | Total |
(In millions) |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 945.4 |  |  | $ | — |  |  | $ | — |  |  | $ | 945.4 |
Fuel, purchased power and direct transmission expense |  |  | 333.8 |  |  |  | — |  |  |  | — |  |  |  | 333.8 |
Other operation and maintenance |  |  | 123.3 |  |  |  | (0.6 | ) |  |  | — |  |  |  | 122.7 |
Depreciation and amortization |  |  | 132.5 |  |  |  | — |  |  |  | — |  |  |  | 132.5 |
Taxes other than income |  |  | 24.7 |  |  |  | 0.6 |  |  |  | — |  |  |  | 25.3 |
Operating income |  |  | 331.1 |  |  |  | — |  |  |  | — |  |  |  | 331.1 |
Other income (expense) |  |  | 7.8 |  |  |  | (0.4 | ) |  |  | (0.8 | ) |  |  | 6.6 |
Interest expense |  |  | 51.0 |  |  |  | 7.2 |  |  |  | (0.8 | ) |  |  | 57.4 |
Income tax expense (benefit) |  |  | 41.8 |  |  |  | (3.4 | ) |  |  | — |  |  |  | 38.4 |
Net income (loss) |  | $ | 246.1 |  |  | $ | (4.2 | ) |  | $ | — |  |  | $ | 241.9 |
Total assets |  | $ | 12,610.6 |  |  | $ | 312.2 |  |  | $ | (179.6 | ) |  | $ | 12,743.2 |
Nine Months Ended September 30, 2024 |  | Electric Company |  |  | Other Operations |  |  | Eliminations |  |  | Total |
(In millions) |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 2,224.8 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,224.8 |
Fuel, purchased power and direct transmission expense |  |  | 776.2 |  |  |  | — |  |  |  | — |  |  |  | 776.2 |
Other operation and maintenance |  |  | 394.0 |  |  |  | 0.2 |  |  |  | — |  |  |  | 394.2 |
Depreciation and amortization |  |  | 408.7 |  |  |  | — |  |  |  | — |  |  |  | 408.7 |
Taxes other than income |  |  | 82.6 |  |  |  | — |  |  |  | — |  |  |  | 82.6 |
Operating income (loss) |  |  | 563.3 |  |  |  | (0.2 | ) |  |  | — |  |  |  | 563.1 |
Other income |  |  | 28.4 |  |  |  | 3.2 |  |  |  | (4.0 | ) |  |  | 27.6 |
Interest expense |  |  | 160.4 |  |  |  | 32.9 |  |  |  | (4.0 | ) |  |  | 189.3 |
Income tax expense (benefit) |  |  | 71.8 |  |  |  | (10.0 | ) |  |  | — |  |  |  | 61.8 |
Net income (loss) |  | $ | 359.5 |  |  | $ | (19.9 | ) |  | $ | — |  |  | $ | 339.6 |
Total assets |  | $ | 13,360.5 |  |  | $ | 134.7 |  |  | $ | (19.4 | ) |  | $ | 13,475.8 |
Nine Months Ended September 30, 2023 |  | Electric Company |  |  | Other Operations |  |  | Eliminations |  |  | Total |
(In millions) |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 2,107.6 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,107.6 |
Fuel, purchased power and direct transmission expense |  |  | 716.2 |  |  |  | — |  |  |  | — |  |  |  | 716.2 |
Other operation and maintenance |  |  | 383.4 |  |  |  | (2.0 | ) |  |  | — |  |  |  | 381.4 |
Depreciation and amortization |  |  | 377.8 |  |  |  | — |  |  |  | — |  |  |  | 377.8 |
Taxes other than income |  |  | 75.3 |  |  |  | 2.9 |  |  |  | — |  |  |  | 78.2 |
Operating income (loss) |  |  | 554.9 |  |  |  | (0.9 | ) |  |  | — |  |  |  | 554.0 |
Other income |  |  | 36.3 |  |  |  | 8.5 |  |  |  | (7.3 | ) |  |  | 37.5 |
Interest expense |  |  | 148.8 |  |  |  | 21.4 |  |  |  | (7.3 | ) |  |  | 162.9 |
Income tax expense (benefit) |  |  | 64.6 |  |  |  | (4.6 | ) |  |  | — |  |  |  | 60.0 |
Net income (loss) |  | $ | 377.8 |  |  | $ | (9.2 | ) |  | $ | — |  |  | $ | 368.6 |
Total assets |  | $ | 12,610.6 |  |  | $ | 312.2 |  |  | $ | (179.6 | ) |  | $ | 12,743.2 |

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