BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Property, plant and equipment
Property, plant and equipment	$ 7,647,792	$ 7,274,268
Accumulated depreciation and amortization	2,172,271	2,083,433
Net property, plant and equipment	5,475,521	5,190,835
Current assets
Cash and cash equivalents	10,366	8,852
Accounts receivable, net	192,741	341,756
Materials and supplies	66,966	54,892
Natural gas in storage	343,377	179,646
Regulatory assets, Current	316,131	1,611,676
Other current assets	28,845	27,742
Total current assets	958,426	2,224,564
Goodwill and other assets
Regulatory assets, Noncurrent	624,484	724,862
Goodwill	157,953	157,953
Other assets	105,125	103,906
Total goodwill and other assets	887,562	986,721
Total assets	7,321,509	8,402,120
Equity and long-term debt
Common stock, $0.01 par value: authorized 250,000,000 shares; issued and outstanding 54,137,925 shares at September 30, 2022; issued and outstanding 53,633,210 shares at December 31, 2021	541	536
Paid-in Capital	1,833,480	1,790,362
Retained earnings	618,669	565,161
Accumulated other comprehensive loss	(6,416)	(6,527)
Total equity	2,446,274	2,349,532
Long-term debt, excluding current maturities and net of issuance costs of $14,520 and $12,418, respectively	2,429,053	3,683,378
Total equity and long-term debt	4,875,327	6,032,910
Current liabilities
Long-term Debt, Current Maturities	250,012	11
Short-term debt	423,400	494,000
Accounts payable	191,117	258,554
Accrued taxes other than income	73,387	67,035
Regulatory Liability, Current	38,171	8,090
Customer deposits	62,005	62,454
Other current liabilities	66,572	90,349
Total current liabilities	1,104,664	980,493
Deferred credits and other liabilities
Deferred income taxes	690,146	695,284
Regulatory Liability, Noncurrent	536,612	552,928
Employee benefit obligations	22,151	35,226
Other deferred credits	92,609	105,279
Liabilities, Other than Long-term Debt, Noncurrent	1,341,518	1,388,717
Commitments and contingencies
Total liabilities and equity	$ 7,321,509	$ 8,402,120