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CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Current Assets    
Cash and Cash Equivalents $ 325,786 $ 294,651
Receivables, net of allowance for credit losses 166,694 145,964
Inventories 155,765 148,885
Investments 53,877 753
Regulatory Assets 9,433 9,962
Other Current Assets 25,688 29,826
Total Current Assets 737,243 630,041
Noncurrent Assets    
Investments 77,662 121,177
Property, Plant and Equipment, net of accumulated depreciation 2,820,689 2,692,460
Regulatory Assets 97,936 98,673
Intangible Assets, net of accumulated amortization 4,917 5,743
Goodwill 37,572 37,572
Other Noncurrent Assets 67,804 66,416
Total Noncurrent Assets 3,106,580 3,022,041
Total Assets 3,843,823 3,652,082
Current Liabilities    
Short-Term Debt 0 69,615
Accounts Payable 95,441 113,574
Accrued Salaries and Wages 32,197 34,398
Accrued Taxes 21,267 17,314
Regulatory Liabilities 21,753 29,307
Other Current Liabilities 35,702 45,582
Total Current Liabilities 206,360 309,790
Noncurrent Liabilities    
Pension Benefit Liability 32,001 32,614
Other Postretirement Benefits Liability 26,502 27,385
Regulatory Liabilities 296,216 288,928
Deferred Income Taxes 288,013 267,745
Deferred Tax Credits 14,513 14,990
Other Noncurrent Liabilities 105,330 98,397
Total Noncurrent Liabilities 762,575 730,059
Commitments and Contingencies (Note 9)
Capitalization    
Long-Term Debt 1,043,437 943,734
Shareholders' Equity    
Common Shares: 50,000,000 shares authorized, $5 par value; 41,905,520 and 41,827,967 outstanding at September 30, 2025 and December 31, 2024 209,528 209,140
Additional Paid-In Capital 433,368 429,089
Retained Earnings 1,187,813 1,029,738
Accumulated Other Comprehensive Income 742 532
Total Shareholders' Equity 1,831,451 1,668,499
Total Capitalization 2,874,888 2,612,233
Total Liabilities and Shareholders' Equity $ 3,843,823 $ 3,652,082