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v3.21.2

Report of Business Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Operating revenues | $ 577.4 |  | $ 503.5 |  | $ 2,208.0 | $ 934.8 |  |
Fuel, purchased power and direct transmission expense | 200.0 |  | 137.4 |  | 1,546.8 | 272.4 |  |
Other operation and maintenance | 119.2 |  | 117.5 |  | 228.5 | 237.5 |  |
Depreciation and amortization | 102.9 |  | 97.3 |  | 201.6 | 191.7 |  |
Taxes other than income | 25.8 |  | 25.9 |  | 53.0 | 51.5 |  |
OPERATING INCOME | 129.5 |  | 125.4 |  | 178.1 | 181.7 |  |
Equity in earnings of unconsolidated affiliates | 33.5 |  | 26.9 |  | 86.7 | (719.6) | [1] |
Other Nonoperating Income (Expense) | (0.1) |  | 2.0 |  | 0.8 | 4.1 |  |
Interest expense | 39.9 |  | 40.8 |  | 79.3 | 79.1 |  |
Income Tax Expense (Benefit) | 10.1 |  | 27.6 |  | 20.7 | (207.0) |  |
Net income (loss) | 112.9 | $ 52.7 | 85.9 | $ (491.8) | 165.6 | (405.9) |  |
Investment in unconsolidated affiliates | 451.7 |  | 376.5 |  | 451.7 | 376.5 |  | $ 397.4
Total assets | 11,899.5 |  | 10,439.1 |  | 11,899.5 | 10,439.1 |  | $ 10,718.8
Electric Utility [Member] |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Operating revenues | 577.4 |  | 503.5 |  | 2,208.0 | 934.8 |  |
Fuel, purchased power and direct transmission expense | 200.0 |  | 137.4 |  | 1,546.8 | 272.4 |  |
Other operation and maintenance | 118.3 |  | 117.7 |  | 228.6 | 238.7 |  |
Depreciation and amortization | 102.9 |  | 97.3 |  | 201.6 | 191.7 |  |
Taxes other than income | 25.0 |  | 25.0 |  | 50.7 | 48.9 |  |
OPERATING INCOME | 131.2 |  | 126.1 |  | 180.3 | 183.1 |  |
Equity in earnings of unconsolidated affiliates | 0.0 |  | 0.0 |  | 0.0 | 0.0 | [1] |
Other Nonoperating Income (Expense) | 1.2 |  | 0.5 |  | 2.9 | 2.3 |  |
Interest expense | 37.9 |  | 39.3 |  | 76.3 | 76.2 |  |
Income Tax Expense (Benefit) | 9.4 |  | 8.4 |  | 10.6 | 10.4 |  |
Net income (loss) | 85.1 |  | 78.9 |  | 96.3 | 98.8 |  |
Investment in unconsolidated affiliates | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Total assets | 11,459.3 |  | 10,367.6 |  | 11,459.3 | 10,367.6 |  |
Natural Gas Midstream Operations [Member] |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Operating revenues | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Fuel, purchased power and direct transmission expense | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Other operation and maintenance | 1.6 |  | 0.3 |  | 2.0 | 0.9 |  |
Depreciation and amortization | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Taxes other than income | 0.1 |  | 0.1 |  | 0.2 | 0.2 |  |
OPERATING INCOME | (1.7) |  | (0.4) |  | (2.2) | (1.1) |  |
Equity in earnings of unconsolidated affiliates | 33.5 |  | 26.9 |  | 86.7 | (719.6) | [1] |
Other Nonoperating Income (Expense) | (0.2) |  | 0.0 |  | (0.7) | 0.0 |  |
Interest expense | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Income Tax Expense (Benefit) | (0.6) |  | 7.5 |  | 13.7 | (171.7) |  |
Net income (loss) | 32.2 |  | 19.0 |  | 70.1 | (549.0) |  |
Investment in unconsolidated affiliates | 425.4 |  | 356.4 |  | 425.4 | 356.4 |  |
Total assets | 427.8 |  | 360.2 |  | 427.8 | 360.2 |  |
Other Operations [Member] |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Operating revenues | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Fuel, purchased power and direct transmission expense | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Other operation and maintenance | (0.7) |  | (0.5) |  | (2.1) | (2.1) |  |
Depreciation and amortization | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Taxes other than income | 0.7 |  | 0.8 |  | 2.1 | 2.4 |  |
OPERATING INCOME | 0.0 |  | (0.3) |  | 0.0 | (0.3) |  |
Equity in earnings of unconsolidated affiliates | 0.0 |  | 0.0 |  | 0.0 | 0.0 | [1] |
Other Nonoperating Income (Expense) | (0.5) |  | 1.7 |  | (0.6) | 3.0 |  |
Interest expense | 2.6 |  | 1.7 |  | 3.8 | 4.1 |  |
Income Tax Expense (Benefit) | 1.3 |  | 11.7 |  | (3.6) | (45.7) |  |
Net income (loss) | (4.4) |  | (12.0) |  | (0.8) | 44.3 |  |
Investment in unconsolidated affiliates | 26.3 |  | 20.1 |  | 26.3 | 20.1 |  |
Total assets | 127.4 |  | 109.1 |  | 127.4 | 109.1 |  |
Eliminations [Member] |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Operating revenues | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Fuel, purchased power and direct transmission expense | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Other operation and maintenance | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Depreciation and amortization | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Taxes other than income | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
OPERATING INCOME | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Equity in earnings of unconsolidated affiliates | 0.0 |  | 0.0 |  | 0.0 | 0.0 | [1] |
Other Nonoperating Income (Expense) | (0.6) |  | (0.2) |  | (0.8) | (1.2) |  |
Interest expense | (0.6) |  | (0.2) |  | (0.8) | (1.2) |  |
Income Tax Expense (Benefit) | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Net income (loss) | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Investment in unconsolidated affiliates | 0.0 |  | 0.0 |  | 0.0 | 0.0 |  |
Total assets | $ (115.0) |  | $ (397.8) |  | $ (115.0) | $ (397.8) |  |
[1] | In 2020, OGE Energy recorded a $780.0 million impairment on its investment in Enable, as further discussed in Note 4

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