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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Jun. 30, 2020
Current Assets:      
Cash and Cash Equivalents $ 5.0 $ 6.0 $ 4.2
Accounts Receivable, Net 50.3 62.0 48.3
Accrued Revenue 34.6 50.9 34.9
Exchange Gas Receivable 5.2 4.9 4.2
Gas Inventory 0.6 0.6 0.5
Materials and Supplies 8.6 8.5 9.2
Prepayments and Other 9.9 6.4 8.3
Total Current Assets 114.2 139.3 109.6
Utility Plant:      
Gas 923.6 920.2 870.5
Electric 578.6 575.9 541.7
Common 64.6 64.1 62.8
Construction Work in Progress 60.6 34.8 68.9
Utility Plant 1,627.4 1,595.0 1,543.9
Less: Accumulated Depreciation 417.6 401.8 396.3
Net Utility Plant 1,209.8 1,193.2 1,147.6
Other Noncurrent Assets:      
Regulatory Assets 131.1 127.4 104.9
Operating Lease Right of Use Assets 4.9 5.2 4.5
Other Assets 17.1 12.8 17.9
Total Other Noncurrent Assets 153.1 145.4 127.3
TOTAL ASSETS 1,477.1 1,477.9 1,384.5
Current Liabilities:      
Accounts Payable 32.6 33.2 24.7
Short-Term Debt 29.7 54.7 74.9
Long-Term Debt, Current Portion 19.0 8.5 6.3
Regulatory Liabilities 17.1 5.5 12.6
Energy Supply Obligations 9.9 10.4 8.4
Interest Payable 4.9 5.0 4.2
Environmental Obligations 0.4 0.3 0.3
Other Current Liabilities 19.7 18.5 17.9
Total Current Liabilities 133.3 136.1 149.3
Noncurrent Liabilities:      
Retirement Benefit Obligations 165.1 162.3 147.5
Deferred Income Taxes, net 115.4 109.0 109.0
Cost of Removal Obligations 105.1 105.2 102.6
Regulatory Liabilities 43.2 44.3 44.8
Environmental Obligations 1.7 1.8 1.9
Other Noncurrent Liabilities 7.2 6.9 7.3
Total Noncurrent Liabilities 437.7 429.5 413.1
Capitalization:      
Long-Term Debt, Less Current Portion 505.3 523.1 436.4
Stockholders' Equity:      
Common Equity (Authorized: 25,000,000 and Outstanding: 15,046,469, 14,996,231 and 15,012,310 Shares) 286.8 285.3 284.4
Retained Earnings 113.8 103.7 101.1
Total Common Stock Equity 400.6 389.0 385.5
Preferred Stock 0.2 0.2 0.2
Total Stockholders' Equity 400.8 389.2 385.7
Total Capitalization 906.1 912.3 822.1
Commitments and Contingencies (Notes 6 & 7)    
TOTAL LIABILITIES AND CAPITALIZATION $ 1,477.1 $ 1,477.9 $ 1,384.5