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Condensed Consolidated Balance Sheets (unaudited) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Current assets:    
Cash and cash equivalents $ 11,693 $ 8,921
Restricted cash and equivalents 5,399 4,889
Accounts receivable, net 249,747 321,652
Materials, supplies and fuel 223,162 150,979
Derivative assets, current 3,868 4,373
Income tax receivable, net 17,112 18,017
Regulatory assets, current 290,087 270,290
Other current assets 48,180 29,012
Total current assets 849,248 808,133
Property, plant and equipment 8,236,053 7,856,573
Less: accumulated depreciation and depletion (1,538,731) (1,407,397)
Total property, plant and equipment, net 6,697,322 6,449,176
Other assets:    
Goodwill 1,299,454 1,299,454
Intangible assets, net 9,883 10,770
Regulatory assets, non-current 416,119 526,309
Other assets, non-current 50,268 38,054
Total other assets, non-current 1,775,724 1,874,587
TOTAL ASSETS 9,322,294 9,131,896
Current liabilities:    
Accounts payable 187,046 217,761
Accrued liabilities 250,835 244,759
Derivative liabilities, current 5,569 1,439
Regulatory liabilities, current 24,797 17,574
Notes payable 501,350 420,180
Total current liabilities 969,597 901,713
Long-term debt, net of current maturities 4,131,033 4,126,923
Deferred credits and other liabilities:    
Deferred income tax liabilities, net 491,859 465,388
Regulatory liabilities, non-current 469,963 485,377
Benefit plan liabilities 120,629 123,925
Other deferred credits and other liabilities 155,456 141,447
Total deferred credits and other liabilities 1,237,907 1,216,137
Commitments, contingencies and guarantees (Note 3)
Equity:    
Common stock $1 par value; 100,000,000 shares authorized; issued 65,105,205 and 64,793,095 shares, respectively 65,105 64,793
Additional paid-in capital 1,811,093 1,783,436
Retained earnings 1,032,522 962,458
Treasury stock, at cost – 26,208 and 54,078 shares, respectively (1,715) (3,509)
Accumulated other comprehensive (loss) (20,389) (20,084)
Total stockholders’ equity 2,886,616 2,787,094
Non-controlling interest 97,141 100,029
Total equity 2,983,757 2,887,123
TOTAL LIABILITIES AND TOTAL EQUITY $ 9,322,294 $ 9,131,896