Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2022

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share-based Payment Arrangement, Cost by Plan [Table Text Block]

The following table presents the Registrants' pre-tax compensation expense and related income tax benefit for the three months ended March 31, 2022 and 2021 related to performance units and restricted stock units for the Registrants' employees.

	OGE Energy				OG&E
	Three Months Ended March 31,				Three Months Ended March 31,
(In millions)	2022		2021		2022		2021
Performance units - total shareholder return	$	1.8	$	2.0	$	0.6	$	0.4
Restricted stock units	0.5		0.5		0.2		—
Total compensation expense	$	2.3	$	2.5	$	0.8	$	0.4
Income tax benefit	$	0.6	$	0.6	$	0.2	$	0.1