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Quarterly Data - Unaudited (Tables)
 12 Months Ended
Dec. 31, 2024
Quarterly Data - Unaudited [Abstract]  
Schedule of Financial Information

Financial information for each quarter of 2024 and 2023 is as follows:

 

   (In Thousands of Dollars, Except Per Share Data) 
2024  1st   2nd   3rd   4th   Total 
                          
Operating Revenues  $40,524   $49,146   $55,100   $47,107   $191,877 
Operating Income   9,865    15,315    17,501    10,529    53,210 
Net Income   10,682    10,546    14,319    8,804    44,351 
Basic Earnings per Share  $0.60   $0.59   $0.80   $0.49   $2.48 
Diluted Earnings per Share  $0.59   $0.59   $0.80   $0.49   $2.47 
Common Dividend Per Share  $0.3250   $0.3250   $0.3250   $0.3400   $1.3150 
High/Low Common Stock Price    $50.33/$64.71      $45.84/$58.02      $52.74/$67.59      $52.62/$69.70       

 

2023  1st   2nd   3rd   4th   Total 
                          
Operating Revenues  $38,156   $42,801   $46,715   $38,602   $166,274 
Operating Income   7,490    10,669    12,822    8,242    39,223 
Net Income   5,868    9,901    9,990    5,765    31,524 
Basic Earnings per Share  $0.33   $0.56   $0.56   $0.32   $1.77 
Diluted Earnings per Share  $0.33   $0.55   $0.56   $0.32   $1.76 
Common Dividend Per Share  $0.3125   $0.3125   $0.3125   $0.3250   $1.2625 
High/Low Common Stock Price    $72.64/$90.56      $66.51/$84.38      $65.37/$84.35      $61.34/$73.47