Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The items comprising income tax expense are as follows:



Year ended December 31 (In millions)	2014			2013			2012
Provision (Benefit) for Current Income Taxes
Federal	$	(43.4	)	$	(3.2	)	$	(9.0	)
State	(6.3		)	0.6			0.3
Total Provision (Benefit) for Current Income Taxes	(49.7		)	(2.6		)	(8.7		)
Provision for Deferred Income Taxes, net
Federal	146.8			106.4			111.4
State	15.4			11.7			(5.9		)
Total Provision for Deferred Income Taxes, net	162.2			118.1			105.5
Deferred Federal Investment Tax Credits, net	(0.9		)	(2.0		)	(2.2		)
Total Income Tax Expense	$	111.6		$	113.5		$	94.6

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The following schedule reconciles the statutory tax rates to the effective income tax rate:



Year ended December 31	2014		2013		2012
Statutory Federal tax rate	35.0	%	35.0	%	35.0	%
Amortization of net unfunded deferred taxes	0.8		0.8		1.0
Federal investment tax credits, net	(0.2	)	(0.5	)	(0.6	)
State income taxes, net of Federal income tax benefit	0.8		—		(0.7	)
Federal renewable energy credit (A)	(9.4	)	(9.2	)	(9.4	)
Uncertain tax positions	0.7		2.0		—
Other	—		(0.2	)	(0.1	)
Effective income tax rate	27.7	%	27.9	%	25.2	%


(A)	Represents credits associated with the production from OG&E's wind farms.

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The deferred tax provisions are recognized as costs in the ratemaking process by the commissions having jurisdiction over the rates charged by OG&E. The components of Deferred Income Taxes at December 31, 2014 and 2013, respectively, were as follows:



December 31 (In millions)	2014			2013
Current Deferred Income Tax Assets
Net operating losses	$	153.2		$	168.7
Accrued liabilities	6.0			9.0
Federal tax credits	8.3			8.0
Accrued vacation	2.7			2.8
Uncollectible accounts	0.6			0.7
Total Current Deferred Income Tax Assets	$	170.8		$	189.2

Non-Current Deferred Income Tax Liabilities
Accelerated depreciation and other property related differences	$	1,931.4		$	1,747.0
OG&E pension plan	77.2			84.7
Regulatory asset	24.7			26.0
Income taxes refundable to customers, net	21.7			21.9
Bond redemption-unamortized costs	5.3			3.6
Total Non-Current Deferred Income Tax Liabilities	2,060.3			1,883.2
Non-Current Deferred Income Tax Assets
Federal tax credits	(137.4		)	(101.9		)
State tax credits	(91.6		)	(86.1		)
Regulatory liabilities	(58.0		)	(61.3		)
Postretirement medical and life insurance benefits	(40.6		)	(45.2		)
Asset retirement obligations	(21.4		)	(20.8		)
Net operating losses	(19.7		)	(17.6		)
Deferred Federal investment tax credits	(0.4		)	(0.7		)
Other	(4.6		)	(4.4		)
Total Non-Current Deferred Income Tax Assets	(373.7		)	(338.0		)
Non-Current Deferred Income Tax Liabilities, net	$	1,686.6		$	1,545.2

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

Following is a reconciliation of the OG&E’s total gross unrecognized tax benefits as of the years ended December 31, 2014, 2013, and 2012.



(Millions)	2014		2013		2012
Balance at January 1	$	7.8	$	—	$	—
Tax positions related to current year:
Additions	2.7		2.7		—
Tax positions related to prior years:
Additions	—		5.1		—
Balance at December 31	$	10.5	$	7.8	$	—

Summary of Tax Credit Carryforwards [Table Text Block]

The following table summarizes these carry forwards:



(In millions)	Carry Forward Amount		Deferred Tax Asset		Earliest Expiration Date
Net operating losses
State operating loss	$	729.0	$	26.9	2030
Federal operating loss	417.4		146.0		2030
Federal tax credits	145.7		145.7		2029
State tax credits
Oklahoma investment tax credits	104.7		68.1		N/A
Oklahoma capital investment board credits	7.3		7.3		N/A
Oklahoma zero emission tax credits	24.1		16.2		2020