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Stock-Based Compensation | 6 Months Ended
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Jun. 30, 2022
Share-based Payment Arrangement [Abstract] |
Share-based Payment Arrangement [Text Block] | Stock-Based Compensation The following table presents the Registrants' pre-tax compensation expense and related income tax benefit for the three and six months ended June 30, 2022 and 2021 related to performance units and restricted stock units for the Registrants' employees.
| OGE Energy |  | OG&E
| Three Months Ended June 30, | Six Months Ended June 30, |  | Three Months Ended June 30, | Six Months Ended June 30,
(In millions) | 2022 | 2021 | 2022 | 2021 |  | 2022 | 2021 | 2022 | 2021
Performance units - total shareholder return | $ | 1.8 |  | $ | 1.9 |  | $ | 3.6 |  | $ | 3.9 |  |  | $ | 0.5 |  | $ | 0.5 |  | $ | 1.1 |  | $ | 0.9 |
Restricted stock units | 0.5 |  | 0.4 |  | 1.0 |  | 0.9 |  |  | 0.2 |  | 0.1 |  | 0.4 |  | 0.1 |
Total compensation expense | $ | 2.3 |  | $ | 2.3 |  | $ | 4.6 |  | $ | 4.8 |  |  | $ | 0.7 |  | $ | 0.6 |  | $ | 1.5 |  | $ | 1.0 |
Income tax benefit | $ | 0.6 |  | $ | 0.6 |  | $ | 1.2 |  | $ | 1.2 |  |  | $ | 0.2 |  | $ | 0.2 |  | $ | 0.4 |  | $ | 0.3 |
During the six months ended June 30, 2022, OGE Energy issued 27,278 shares of new common stock pursuant to OGE Energy's Stock Incentive Plan and issued an immaterial amount of treasury stock to satisfy payouts of restricted stock unit grants to the Registrants' employees.

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- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details
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