BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, plant and equipment
Property, plant and equipment	$ 8,606,475	$ 8,468,967
Accumulated depreciation and amortization	2,368,521	2,333,755
Net property, plant and equipment	6,237,954	6,135,212
Current assets
Cash and Cash Equivalents	11,509	18,835
Restricted Cash and Cash Equivalents	9,963	20,552
Cash, cash equivalents, restricted cash and restricted cash equivalents	21,472	39,387
Accounts receivable, net	324,505	347,864
Materials and supplies	80,349	77,649
Natural Gas in Storage	110,451	187,097
Regulatory assets, Current	94,692	75,308
Other current assets	32,226	37,899
Total current assets	663,695	765,204
Goodwill and other assets
Regulatory assets, Noncurrent	283,851	287,906
Other Intangible Assets, Net	286,234	293,619
Goodwill	157,953	157,953
Other assets	134,350	131,100
Total goodwill and other assets	862,388	870,578
Total assets	7,764,037	7,770,994
Equity and long-term debt
Common stock, $0.01 par value: authorized 250,000,000 shares; issued and outstanding 56,569,396 shares at March 31, 2024; issued and outstanding 56,545,924 shares at December 31, 2023	566	565
Paid-in Capital	2,031,168	2,028,755
Retained earnings	799,443	737,739
Accumulated other comprehensive loss	(1,192)	(1,182)
Total equity	2,829,985	2,765,877
Other Long-Term Debt, Noncurrent	1,878,260	1,877,895
Securitized utility tariff bonds, excluding current maturities, net of issuance costs	268,102	282,506
Long-Term Debt, Excluding Current Maturities, Total	2,146,362	2,160,401
Total equity and long-term debt	4,976,347	4,926,278
Current liabilities
Long-term Debt, Current Maturities	13	772,984
Current maturities of securitized utility tariff bonds	28,183	27,430
Short-term debt	953,400	88,500
Accounts payable	196,583	278,056
Accrued taxes other than income	64,405	68,793
Regulatory Liability, Current	34,844	66,901
Customer deposits	58,064	62,187
Other current liabilities	68,032	112,370
Total current liabilities	1,403,524	1,477,221
Deferred credits and other liabilities
Deferred income taxes	781,316	752,068
Regulatory Liability, Noncurrent	487,475	500,478
Employee benefit obligations	20,220	20,265
Other deferred credits	95,155	94,684
Liabilities, Other than Long-term Debt, Noncurrent	1,384,166	1,367,495
Commitments and contingencies
Total liabilities and equity	$ 7,764,037	$ 7,770,994