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v3.10.0.1

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Revenues |  |  |
Revenues | $ 2,860,849 | $ 2,555,625 | $ 2,380,654
Expenses |  |  |
Total expenses | 2,527,493 | 2,209,392 | 2,024,816
Operating income (loss) |  |  |
Operating income | 333,356 | 346,233 | 355,838
Merger termination fee | 0 | 0 | 90,000
Retirement defined benefits expense—other than service costs | (5,962) | (7,942) | (7,663)
Interest expense, net – other than on deposit liabilities and other bank borrowings | (88,677) | (78,972) | (75,803)
Allowance for borrowed funds used during construction | 4,867 | 4,778 | 3,144
Allowance for equity funds used during construction | 10,877 | 12,483 | 8,325
Income before income taxes | 254,461 | 276,580 | 373,841
Income taxes | 50,797 | 109,393 | 123,695
Net income (loss) | 203,664 | 167,187 | 250,146
Preferred stock dividends of subsidiaries | 1,890 | 1,890 | 1,890
Net income for common stock | $ 201,774 | $ 165,297 | $ 248,256
Basic earnings per common share (in dollars per share) | $ 1.85 | $ 1.52 | $ 2.30
Diluted earnings per common share (in dollars per share) | $ 1.85 | $ 1.52 | $ 2.29
Weighted-average number of common shares outstanding (in shares) | 108,855 | 108,749 | 108,102
Net effect of potentially dilutive shares (in shares) | 291 | 184 | 207
Weighted-average shares assuming dilution (in shares) | 109,146 | 108,933 | 108,309
Electric utility |  |  |
Revenues |  |  |
Revenues | $ 2,546,525 | $ 2,257,566 | $ 2,094,368
Expenses |  |  |
Total expenses | 2,304,864 | 1,994,042 | 1,804,298
Operating income (loss) |  |  |
Operating income | 241,661 | 263,524 | 290,070
Income before income taxes | 180,426 | 205,145 | 229,113
Income taxes | 34,778 | 83,199 | 84,801
Net income (loss) | 145,648 | 121,946 | 144,312
Preferred stock dividends of subsidiaries | 1,995 | 1,995 | 1,995
Net income for common stock | 143,653 | 119,951 | 142,317
Bank |  |  |
Revenues |  |  |
Revenues | 314,275 | 297,640 | 285,924
Expenses |  |  |
Total expenses | 206,040 | 198,104 | 197,697
Operating income (loss) |  |  |
Operating income | 108,235 | 99,536 | 88,227
Income before income taxes | 106,578 | 98,716 | 87,352
Income taxes | 24,069 | 31,719 | 30,073
Net income (loss) | 82,509 | 66,997 | 57,279
Preferred stock dividends of subsidiaries | 0 | 0 | 0
Net income for common stock | 82,509 | 66,997 | 57,279
Other |  |  |
Revenues |  |  |
Revenues | 49 | 419 | 362
Expenses |  |  |
Total expenses | 16,589 | 17,246 | 22,821
Operating income (loss) |  |  |
Operating income | (16,540) | (16,827) | (22,459)
Income before income taxes | (32,543) | (27,281) | 57,376
Income taxes | (8,050) | (5,525) | 8,821
Net income (loss) | (24,493) | (21,756) | 48,555
Preferred stock dividends of subsidiaries | (105) | (105) | (105)
Net income for common stock | $ (24,388) | $ (21,651) | $ 48,660

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