CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
OPERATING REVENUES
Electric Utility	$ 754.7	$ 723.2	$ 1,926.9	$ 1,750.8
Natural Gas Midstream Operations (Note 1)	0	0	0	608.0
Total operating revenues	754.7	723.2	1,926.9	2,358.8
COST OF SALES
Electric Utility	305.3	273.0	869.6	717.8
Natural Gas Midstream Operations (Note 1)	0	0	0	478.8
Total cost of sales	305.3	273.0	869.6	1,196.6
OPERATING EXPENSES
Other operation and maintenance	108.1	102.2	331.9	372.2
Depreciation and amortization	71.7	65.4	207.2	231.7
Taxes other than income	21.5	21.7	66.5	78.1
Total operating expenses	201.3	189.3	605.6	682.0
OPERATING INCOME	248.1	260.9	451.7	480.2
OTHER INCOME (EXPENSE)
Equity in earnings of unconsolidated affiliates (Note 1)	44.7	46.0	131.9	64.5
Allowance for equity funds used during construction	1.1	1.7	3.0	4.4
Other income	7.2	6.2	11.7	25.4
Other expense	(5.8)	(5.2)	(11.2)	(15.9)
Net other income	47.2	48.7	135.4	78.4
INTEREST EXPENSE
Interest on long-term debt	36.3	35.0	109.2	110.7
Allowance for borrowed funds used during construction	(0.6)	(0.9)	(1.7)	(2.3)
Interest on short-term debt and other interest charges	1.5	(0.4)	5.0	3.8
Interest expense	37.2	33.7	112.5	112.2
INCOME BEFORE TAXES	258.1	275.9	474.6	446.4
INCOME TAX EXPENSE	70.8	60.7	137.2	110.2
NET INCOME	187.3	215.2	337.4	336.2
Less: Net income attributable to noncontrolling interests	0	0	0	6.2
NET INCOME ATTRIBUTABLE TO OGE ENERGY	$ 187.3	$ 215.2	$ 337.4	$ 330.0
BASIC AVERAGE COMMON SHARES OUTSTANDING	199.3	198.4	199.1	198.1
DILUTED AVERAGE COMMON SHARES OUTSTANDING	200.2	199.7	199.9	199.3
BASIC EARNINGS PER AVERAGE COMMON SHARE ATTRIBUTABLE TO OGE ENERGY COMMON SHAREHOLDERS	$ 0.94	$ 1.08	$ 1.69	$ 1.67
DILUTED EARNINGS PER AVERAGE COMMON SHARES ATTRIBUTABLE TO OGE ENERGY COMMON SHAREHOLDERS	$ 0.94	$ 1.08	$ 1.69	$ 1.66
DIVIDENDS DECLARED PER COMMON SHARE	$ 0.25	$ 0.20875	$ 0.70	$ 0.62625