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Condensed Consolidated Balance Sheets (unaudited) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Current assets:    
Cash and cash equivalents $ 16,330 $ 8,921
Restricted cash and equivalents 5,017 4,889
Accounts receivable, net 383,790 321,652
Materials, supplies and fuel 108,232 150,979
Derivative assets, current 7,382 4,373
Income tax receivable, net 17,991 18,017
Regulatory assets, current 265,496 270,290
Other current assets 45,070 29,012
Total current assets 849,308 808,133
Property, plant and equipment 7,927,840 7,856,573
Less: accumulated depreciation and depletion (1,454,425) (1,407,397)
Total property, plant and equipment, net 6,473,415 6,449,176
Other assets:    
Goodwill 1,299,454 1,299,454
Intangible assets, net 10,474 10,770
Regulatory assets, non-current 457,848 526,309
Other assets, non-current 40,155 38,054
Total other assets, non-current 1,807,931 1,874,587
TOTAL ASSETS 9,130,654 9,131,896
Current liabilities:    
Accounts payable 173,102 217,761
Accrued liabilities 227,209 244,759
Derivative liabilities, current 191 1,439
Regulatory liabilities, current 52,742 17,574
Notes payable 341,480 420,180
Total current liabilities 794,724 901,713
Long-term debt, net of current maturities 4,128,291 4,126,923
Deferred credits and other liabilities:    
Deferred income tax liabilities, net 490,384 465,388
Regulatory liabilities, non-current 482,442 485,377
Benefit plan liabilities 123,111 123,925
Other deferred credits and other liabilities 140,680 141,447
Total deferred credits and other liabilities 1,236,617 1,216,137
Commitments, contingencies and guarantees (Note 3)
Equity:    
Common stock $1 par value; 100,000,000 shares authorized; issued 64,849,227 and 64,793,095 shares, respectively 64,849 64,793
Additional paid-in capital 1,786,980 1,783,436
Retained earnings 1,041,451 962,458
Treasury stock, at cost – 19,685 and 54,078 shares, respectively (1,287) (3,509)
Accumulated other comprehensive income (loss) (20,078) (20,084)
Total stockholders’ equity 2,871,915 2,787,094
Non-controlling interest 99,107 100,029
Total equity 2,971,022 2,887,123
TOTAL LIABILITIES AND TOTAL EQUITY $ 9,130,654 $ 9,131,896