Revenue from Contracts with Customers (Notes)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer [Text Block]

3.Revenue Recognition

The following table disaggregates the Company's revenues from contracts with customers by customer classification. The Company's operating revenues disaggregated by customer classification can be found in "OG&E (Electric Utility) Results of Operations" within "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations."

	Three Months Ended March 31,
(In millions)	2020		2019
Residential	$	166.9	$	191.2
Commercial	91.3		95.4
Industrial	41.5		52.3
Oilfield	38.2		49.4
Public authorities and street light	34.7		40.1
System sales revenues	372.6		428.4
Provision for rate refund	(0.6)		(0.1)
Integrated market	7.2		6.7
Transmission	34.2		36.1
Other	7.0		6.3
Revenues from contracts with customers	$	420.4	$	477.4