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Quarterly Data - Unaudited (Tables) | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
Quarterly financial information | Financial information for each quarter of 2019 and 2018 is as follows:
|  | (Thousands of Dollars, Except per Share Data)
2019 |  | 1 st |  | 2 nd |  | 3 rd |  | 4 th |  | Total
Operating Revenues |  | $ | 30,698 |  |  | $ | 33,393 |  |  | $ | 37,769 |  |  | $ | 32,738 |  |  | $ | 134,598 |
Operating Income |  |  | 7,028 |  |  |  | 8,950 |  |  |  | 11,983 |  |  |  | 7,559 |  |  |  | 35,520 |
Net Income |  |  | 6,552 |  |  |  | 8,146 |  |  |  | 11,119 |  |  |  | 8,071 |  |  |  | 33,888 |
Basic Earnings per Share |  | $ | 0.40 |  |  | $ | 0.49 |  |  | $ | 0.67 |  |  | $ | 0.46 |  |  | $ | 2.02 |
Diluted Earnings per Share |  | $ | 0.39 |  |  | $ | 0.49 |  |  | $ | 0.67 |  |  | $ | 0.46 |  |  | $ | 2.01 |
Common Dividend Per Share |  | $ | 0.2400 |  |  | $ | 0.2400 |  |  | $ | 0.2400 |  |  | $ | 0.2563 |  |  | $ | 0.9763 |
High/Low Common Stock Price |  | $ | 60.48/$51.02 |  |  | $ | 63.68/$52.51 |  |  | $ | 66.10/$55.30 |  |  | $ | 67.69/$58.75 |  |  |  |  |
2018 |  | 1 st |  | 2 nd |  | 3 rd |  | 4 th |  | Total
Operating Revenues |  | $ | 31,177 |  |  | $ | 34,919 |  |  | $ | 38,713 |  |  | $ | 33,268 |  |  | $ | 138,077 |
Operating Income |  |  | 6,350 |  |  |  | 10,721 |  |  |  | 12,918 |  |  |  | 7,153 |  |  |  | 37,142 |
Net Income |  |  | 4,494 |  |  |  | 8,675 |  |  |  | 12,290 |  |  |  | 6,993 |  |  |  | 32,452 |
Basic Earnings per Share |  | $ | 0.27 |  |  | $ | 0.52 |  |  | $ | 0.75 |  |  | $ | 0.43 |  |  | $ | 1.97 |
Diluted Earnings per Share |  | $ | 0.27 |  |  | $ | 0.52 |  |  | $ | 0.74 |  |  | $ | 0.43 |  |  | $ | 1.96 |
Common Dividend Per Share |  | $ | 0.2238 |  |  | $ | 0.2238 |  |  | $ | 0.2238 |  |  | $ | 0.2400 |  |  | $ | 0.9114 |
High/Low Common Stock Price |  | $ | 41.45/$33.96 |  |  | $ | 45.24/$34.74 |  |  | $ | 49.00/$41.77 |  |  | $ | 60.31/$43.12 |  |  |  |  |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118952077&loc=d3e1280-108306 + Details
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