Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024
Current assets:
Cash, cash equivalents and restricted cash	$ 58,801	$ 66,904	$ 78,780
Receivables, net	156,728	274,303	145,951
Current regulatory assets	141,744	215,436	217,822
Inventories	19,713	44,940	21,162
Prepayments and other current assets	64,940	64,676	73,417
Current assets of discontinued operations	0	0	859,907
Total current assets	441,926	666,259	1,397,039
Noncurrent assets:
Property, plant and equipment	7,711,004	7,554,063	7,290,670
Less accumulated depreciation and amortization	2,276,447	2,209,771	2,144,001
Net property, plant and equipment	5,434,557	5,344,292	5,146,669
Goodwill	345,736	345,736	345,736
Regulatory assets	309,302	322,350	351,334
Investments	115,784	115,459	109,970
Other	298,612	244,722	242,969
Noncurrent assets of discontinued operations	0	0	366,619
Total noncurrent assets	6,503,991	6,372,559	6,563,297
Total assets	6,945,917	7,038,818	7,960,336
Current liabilities:
Long-term debt due within one year	136,700	161,700	61,608
Accounts payable	107,178	150,070	106,543
Regulatory liabilities due within one year	134,254	137,167	158,535
Taxes payable	53,428	43,372	52,201
Dividends payable	26,563	26,511	25,029
Accrued compensation	20,795	35,264	18,617
Other accrued liabilities	115,873	124,514	124,557
Current liabilities of discontinued operations	0	0	602,769
Total current liabilities	594,791	678,598	1,149,859
Noncurrent liabilities:
Long-term debt	2,045,235	2,130,910	2,207,009
Deferred income taxes	426,556	441,320	450,214
Regulatory liabilities	468,168	459,170	461,366
Asset retirement obligations	415,137	406,351	393,743
Other	264,126	231,895	223,599
Noncurrent liabilities of discontinued operations	0	0	56,742
Total noncurrent liabilities	3,619,222	3,669,646	3,792,673
Commitments and contingencies
Stockholders' equity:
Common stock Authorized - 500,000,000 shares, $1.00 par value Shares issued - 204,331,170 at June 30, 2025, 203,888,237 at June 30, 2024 and 203,934,578 at December 31, 2024	204,331	203,935	203,888
Other paid-in capital	1,472,150	1,473,738	1,468,483
Retained earnings	1,071,909	1,029,699	1,363,604
Accumulated other comprehensive loss	(16,486)	(16,798)	(18,171)
Total stockholders' equity	2,731,904	2,690,574	3,017,804
Total liabilities and stockholders' equity	$ 6,945,917	$ 7,038,818	$ 7,960,336
Common stock, issued (in shares)	204,331,170	203,934,578	203,888,237