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CONSOLIDATED STATEMENTS OF EARNINGS - USD ($)
shares in Millions, $ in Millions
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Operating Revenues    
Total Operating Revenues $ 220.2 $ 192.6
Operating Expenses    
Operation and Maintenance 18.1 18.5
Depreciation and Amortization 16.7 15.5
Taxes Other Than Income Taxes 7.3 6.8
Total Operating Expenses 180.7 156.8
Operating Income 39.5 35.8
Interest Expense, Net 7.1 6.2
Other Expense (Income), Net 0.0 0.7
Income (Loss) Before Income Taxes 32.4 28.9
Provision (Benefit) for Income Taxes 8.3 7.4
Net Income $ 24.1 $ 21.5
Net Income Per Common Share-Basic $ 1.51 $ 1.35
Net Income Per Common Share-Diluted $ 1.51 $ 1.35
Weighted Average Common Shares Outstanding-Basic 16.0 16.0
Weighted Average Common Shares Outstanding-Diluted 16.0 16.0
Electric    
Operating Revenues    
Total Operating Revenues $ 108.2 $ 89.2
Operating Expenses    
Cost of Sales 81.5 64.6
Gas    
Operating Revenues    
Total Operating Revenues 112.0 103.4
Operating Expenses    
Cost of Sales $ 57.1 $ 51.4