CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
CURRENT ASSETS
Cash and cash equivalents	$ 4.6	$ 2.3
Accounts receivable, less reserve of $3.8 and $1.9, respectively	322.5	277.9
Accrued unbilled revenues	59.3	56.8
Income taxes receivable	8.3	4.7
Fuel inventories	100.7	158.8
Materials and supplies, at average cost	87.2	83.3
Price risk management	3.5	1.4
Gas imbalances	1.8	2.5
Deferred income taxes	32.1	18.7
Fuel clause under recoveries	1.8	1.0
Other	30.9	24.7
Total current assets	652.7	632.1
OTHER PROPERTY AND INVESTMENTS, at cost	46.7	44.9
PROPERTY, PLANT AND EQUIPMENT
In service	10,315.9	9,188.0
Construction work in progress	499.0	460.0
Total property, plant and equipment	10,814.9	9,648.0
Less accumulated depreciation	3,340.9	3,183.6
Net property, plant and equipment	7,474.0	6,464.4
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	507.9	489.4
Intangible assets, net	137.0	2.8
Goodwill	39.4	0
Price risk management	0.3	0.8
Other	48.0	34.7
Total deferred charges and other assets	732.6	527.7
TOTAL ASSETS	8,906.0	7,669.1
CURRENT LIABILITIES
Short-term debt	277.1	145.0
Accounts payable	388.0	321.7
Dividends payable	38.5	36.6
Customer deposits	67.6	67.0
Accrued taxes	42.3	39.3
Accrued interest	54.8	53.1
Accrued compensation	47.8	43.3
Price risk management	0.4	16.8
Gas imbalances	9.8	6.7
Fuel clause over recoveries	7.7	29.9
Other	64.5	55.1
Total current liabilities	998.5	814.5
LONG-TERM DEBT	2,737.1	2,362.9
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	360.8	372.4
Deferred income taxes	1,651.4	1,434.8
Deferred investment tax credits	6.1	9.4
Regulatory liabilities	230.7	193.1
Price risk management	0.1	0
Deferred revenues	40.8	36.7
Other	61.2	45.3
Total deferred credits and other liabilities	2,351.1	2,091.7
Total liabilities	6,086.7	5,269.1
COMMITMENTS AND CONTINGENCIES (NOTE 16)
STOCKHOLDERS' EQUITY
Common stockholders' equity	1,035.3	969.2
Retained earnings	1,574.8	1,380.6
Accumulated other comprehensive loss, net of tax	(40.6)	(60.2)
Treasury stock, at cost	(6.2)	0
Total OGE Energy stockholders' equity	2,563.3	2,289.6
Noncontrolling interests	256.0	110.4
Total stockholders' equity	2,819.3	2,400.0
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 8,906.0	$ 7,669.1