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CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Statement [Abstract] |  |  |
Operating Revenues | $ 138,077 | $ 130,775 | $ 132,906
Operating Expenses: |  |  |
Operations and Maintenance | 71,570 | 65,490 | 65,864
Depreciation | 15,037 | 13,922 | 12,796
Other Taxes | 14,328 | 13,565 | 13,944
Total Operating Expenses | 100,935 | 92,977 | 92,604
Operating Income | 37,142 | 37,798 | 40,302
Other Income (Expense): |  |  |
Allowance for Funds Used During Construction | 1,362 | 702 | 619
Other Income (Expense), net | 1,630 | 915 | (1,151)
Total Other Income (Expense), net | 2,992 | 1,617 | (532)
Interest Charges | 6,758 | 5,506 | 5,293
Income before Income Taxes | 33,376 | 33,909 | 34,477
Income Taxes | 924 | 11,100 | 11,735
Net Income | 32,452 | 22,809 | 22,742
Preferred Stock Dividend Requirements | 144 | 144 | 144
Earnings Applicable to Common Stock | $ 32,308 | $ 22,665 | $ 22,598
Earnings per share of Common Stock: |  |  |
Basic | $ 1.97 | $ 1.39 | $ 1.39
Diluted | $ 1.96 | $ 1.38 | $ 1.38
Average Number of Common Shares Outstanding : |  |  |
Basic | 16,384,000 | 16,330,000 | 16,270,000
Diluted | 16,540,000 | 16,486,000 | 16,426,000
Cash Dividends Paid per Common Share | $ 0.911 | $ 0.858 | $ 0.808

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