Commitments and Contingencies Operating Lease Obligations (Tables)

6 Months Ended

Jun. 30, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

OG&E Wind Farm Land Lease Agreements

OG&E has wind farm land operating leases for its Centennial, OU Spirit and Crossroads wind farms expiring at various dates. Although the leases are cancellable, OG&E is required to make annual lease payments as long as the wind turbines are located on the land. OG&E does not expect to terminate the leases until the wind turbines reach the end of their economic life.Future minimum payments for these operating leases are as follows:

(In millions)	2012		2013		2014		2015		2016		2017 and Beyond		Total
OG&E wind farm land leases	$	2.0	$	2.0	$	2.1	$	2.1	$	2.1	$	53.9	$	64.2