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Related-Party Transactions (Notes)
 12 Months Ended
Dec. 31, 2013
Related Party Transaction [Line Items]  
Related Party Transactions Disclosure [Text Block]
Related Party Transactions
 
OGE Energy charged operating costs to OG&E of $120.1 million, $118.4 million and $129.7 million in 2013, 2012 and 2011, respectively. OGE Energy charges operating costs to its subsidiaries and unconsolidated affiliate based on several factors. Operating costs directly related to specific subsidiaries or unconsolidated affiliate are assigned to those subsidiaries or unconsolidated affiliate.  Where more than one subsidiary or unconsolidated affiliate benefits from certain expenditures, the costs are shared between those subsidiaries and unconsolidated affiliate receiving the benefits.  Operating costs incurred for the benefit of all subsidiaries and unconsolidated affiliate are allocated among the subsidiaries and unconsolidated affiliate, either as overhead based primarily on labor costs or using the "Distrigas" method.  The Distrigas method is a three-factor formula that uses an equal weighting of payroll, net operating revenues and gross property, plant and equipment.  OGE Energy adopted the Distrigas method in January 1996 as a result of a recommendation by the OCC Staff.  OGE Energy believes this method provides a reasonable basis for allocating common expenses.

The following table summarizes related party transactions between OG&E and its affiliate, Enable, during 2013, 2012 and 2011.
 
December 31,
(In millions)
2013
2012
2011
Operating Revenues:
 
 
 
Electricity to power electric compression assets
$
10.2

$
12.4

$
8.1

Cost of Sales:
 
 
 
Natural gas transportation services
$
34.8

$
34.8

$
34.8

Natural gas storage services
12.9

12.9

12.7

Natural gas purchases
22.4

20.4

34.7



In 2013 and 2012, OG&E declared dividends to OGE Energy of $170.0 million and $75.0 million, respectively. In 2011, OG&E declared no dividends to OGE Energy.

In June 2011, OGE Energy made a capital contribution to OG&E for $50.0 million.