Investment in Unconsolidated Affiliates Summarized Balance Sheet Information of Equity Method Investment (Tables)

Jun. 30, 2013

Summarized Financial Information of Equity Method Investment [Line Items]

Summarized Balance Sheet Financial Information, Equity Method Investment [Table Text Block]

As Enable Midstream Partners began operations on May 1, 2013, summarized unaudited financial information for 100 percent of Enable Midstream Partners is presented below at June 30, 2013 (at historical cost) and for the two months ended June 30, 2013. Fair value information for Enable Midstream Partners' information below is not currently available; however, OGE Holdings expects these fair value amounts to be available by the end of the third quarter of 2013.

Balance Sheet	June 30, 2013
	(In millions)
Current assets	$	393.9
Non-Current assets	8,209.2
Current liabilities	379.6
Non-Current liabilities	2,249.1