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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Sep. 30, 2019
Dec. 31, 2018
Sep. 30, 2018
Current Assets:      
Cash and Cash Equivalents $ 7.3 $ 7.8 $ 6.3
Accounts Receivable, Net 39.4 66.8 52.3
Accrued Revenue 35.3 54.7 36.0
Exchange Gas Receivable 8.6 8.1 10.1
Refundable Taxes 2.9 0.5  
Gas Inventory 0.8 0.8 0.9
Materials and Supplies 7.7 7.0 7.2
Prepayments and Other 5.4 6.5 7.8
Total Current Assets 107.4 152.2 120.6
Utility Plant:      
Gas 783.2 760.6 712.7
Electric 514.8 500.1 485.6
Common 61.6 83.1 82.1
Construction Work in Progress 72.9 25.5 68.4
Utility Plant 1,432.5 1,369.3 1,348.8
Less: Accumulated Depreciation 348.6 332.5 326.5
Net Utility Plant 1,083.9 1,036.8 1,022.3
Other Noncurrent Assets:      
Regulatory Assets 98.7 99.0 111.6
Operating Lease Right of Use Assets 4.2    
Other Assets 15.5 10.3 10.0
Total Other Noncurrent Assets 118.4 109.3 121.6
TOTAL ASSETS 1,309.7 1,298.3 1,264.5
Current Liabilities:      
Accounts Payable 22.9 42.6 27.4
Short-Term Debt 49.2 82.8 69.1
Long-Term Debt, Current Portion [1] 19.5 18.4 31.8
Regulatory Liabilities 14.4 11.5 12.2
Energy Supply Obligations 12.5 13.4 15.0
Interest Payable 7.1 4.3 7.0
Other Current Liabilities 18.8 19.5 18.0
Total Current Liabilities 144.4 192.5 180.5
Noncurrent Liabilities:      
Retirement Benefit Obligations 120.8 121.5 142.4
Deferred Income Taxes, net 108.3 97.8 86.4
Cost of Removal Obligations 98.4 90.7 91.2
Regulatory Liabilities 46.7 47.0 47.9
Other Noncurrent Liabilities 10.2 10.1 10.0
Total Noncurrent Liabilities 384.4 367.1 377.9
Capitalization:      
Long-Term Debt, Less Current Portion 410.9 387.4 361.1
Stockholders' Equity:      
Common Equity (Authorized: 25,000,000 and Outstanding: 14,925,898, 14,872,011 and 14,876,955 Shares) 281.7 279.1 278.3
Retained Earnings 88.1 72.0 66.5
Total Common Stock Equity 369.8 351.1 344.8
Preferred Stock 0.2 0.2 0.2
Total Stockholders' Equity 370.0 351.3 345.0
Total Capitalization 780.9 738.7 706.1
TOTAL LIABILITIES AND CAPITALIZATION $ 1,309.7 $ 1,298.3 $ 1,264.5
[1] The Current Portion of Long-Term Debt includes sinking fund payments.