CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current Assets:
Cash and cash equivalents	$ 203,598	$ 22,168
Accounts and notes receivable-less allowances of $11,598 and $10,465, respectively	193,200	203,035
Materials and supplies, fuel stock and stored natural gas	76,402	84,733
Regulatory assets	34,733	43,783
Other current assets	88,143	80,754
Total current assets	596,076	434,473
Net utility property	5,250,277	5,225,515
Goodwill	52,426	52,426
Non-current regulatory assets	838,623	860,626
Other property and investments-net and other non-current assets	298,608	280,543
Total assets	7,036,010	6,853,583
Current Liabilities:
Accounts payable	112,126	133,096
Current portion of long-term debt	250,000	250,000
Short-term borrowings	0	284,000
Regulatory liabilities	109,278	77,149
Other current liabilities	170,521	168,861
Total current liabilities	641,925	913,106
Long-term debt	2,294,179	1,898,370
Long-term debt to affiliated trusts	51,547	51,547
Pensions and other postretirement benefits	140,575	153,467
Deferred income taxes	646,736	642,709
Non-current regulatory liabilities	850,702	861,515
Other non-current liabilities and deferred credits	177,046	178,125
Total liabilities	4,802,710	4,698,839
Commitments and Contingencies (See Notes to Condensed Consolidated Financial Statements)
Shareholders’ Equity:
Common stock, no par value; 200,000,000 shares authorized; 70,767,212 and 69,238,901 shares issued and outstanding, respectively	1,418,421	1,380,152
Accumulated other comprehensive loss	(10,763)	(11,039)
Retained earnings	825,642	785,631
Total shareholders’ equity	2,233,300	2,154,744
Total liabilities and equity	$ 7,036,010	$ 6,853,583