CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current Assets:
Cash and cash equivalents	$ 21,619	$ 22,168
Accounts and notes receivable-less allowances of $9,872 and $10,465, respectively	166,122	203,035
Materials and supplies, fuel stock and stored natural gas	105,791	84,733
Regulatory assets	44,199	43,783
Other current assets	79,230	80,754
Total current assets	416,961	434,473
Net utility property	5,307,406	5,225,515
Goodwill	52,426	52,426
Non-current regulatory assets	839,155	860,626
Other property and investments-net and other non-current assets	321,766	280,543
Total assets	6,937,714	6,853,583
Current Liabilities:
Accounts payable	121,315	133,096
Current portion of long-term debt	6,500	250,000
Short-term borrowings	158,000	284,000
Regulatory liabilities	94,609	77,149
Other current liabilities	172,977	168,861
Total current liabilities	553,401	913,106
Long-term debt	2,287,606	1,898,370
Long-term debt to affiliated trusts	51,547	51,547
Pensions and other postretirement benefits	128,187	153,467
Deferred income taxes	657,583	642,709
Non-current regulatory liabilities	846,873	861,515
Other non-current liabilities and deferred credits	175,023	178,125
Total liabilities	4,700,220	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; 72,976,082 and 71,497,523 shares issued and outstanding, respectively	1,443,102	1,380,152
Accumulated other comprehensive loss	(10,490)	(11,039)
Retained earnings	804,882	785,631
Total shareholders’ equity	2,237,494	2,154,744
Total liabilities and equity	$ 6,937,714	$ 6,853,583