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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
OPERATING REVENUES |  |
Electric Utility | $ 560.4 | $ 453.7
Natural Gas Midstream Operations (Note 1) | 0 | 447.7
Total operating revenues | 560.4 | 901.4
COST OF SALES |  |
Electric Utility | 293.4 | 201.1
Natural Gas Midstream Operations (Note 1) | 0 | 351.9
Total cost of sales | 293.4 | 553.0
OPERATING EXPENSES |  |
Other operation and maintenance | 112.4 | 148.0
Depreciation and amortization | 67.2 | 91.9
Taxes other than income | 25.6 | 33.1
Total operating expenses | 205.2 | 273.0
OPERATING INCOME | 61.8 | 75.4
OTHER INCOME (EXPENSE) |  |
Equity in earnings of unconsolidated affiliates (Note 1) | 47.9 | 0
Allowance for equity funds used during construction | 1.1 | 1.2
Other income | 1.4 | 14.7
Other expense | (3.3) | (6.5)
Net other income | 47.1 | 9.4
INTEREST EXPENSE |  |
Interest on long-term debt | 35.1 | 39.7
Allowance for borrowed funds used during construction | (0.6) | (0.7)
Interest on short-term debt and other interest charges | 1.4 | 2.2
Interest expense | 35.9 | 41.2
INCOME BEFORE TAXES | 73.0 | 43.6
INCOME TAX EXPENSE | 23.7 | 15.6
NET INCOME | 49.3 | 28.0
Less: Net income attributable to noncontrolling interests | 0 | 4.9
NET INCOME ATTRIBUTABLE TO OGE ENERGY | $ 49.3 | $ 23.1
BASIC AVERAGE COMMON SHARES OUTSTANDING | 198.8 | 197.8
DILUTED AVERAGE COMMON SHARES OUTSTANDING | 199.5 | 198.8
BASIC EARNINGS PER AVERAGE COMMON SHARE ATTRIBUTABLE TO OGE ENERGY COMMON SHAREHOLDERS | $ 0.25 | $ 0.12
DILUTED EARNINGS PER AVERAGE COMMON SHARES ATTRIBUTABLE TO OGE ENERGY COMMON SHAREHOLDERS | $ 0.25 | $ 0.12
DIVIDENDS DECLARED PER COMMON SHARE | $ 0.22500 | $ 0.20875

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- Definition Cost of electricity sold during the reporting period, operations of which is regulated by a federal or state agency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(b)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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