CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
OPERATING REVENUES
Utility	$ 144,971	$ 199,357	$ 902,880	$ 937,266
Nonutility	119,104	352,978	728,789	1,203,227
Total operating revenues	264,075	552,335	1,631,669	2,140,493
Natural gas purchases:
Related parties	1,870	1,838	5,467	5,567
Operation and maintenance	94,213	88,373	272,809	243,143
Regulatory rider expenses	6,120	8,360	47,525	55,941
Depreciation and amortization	38,877	32,872	113,650	94,700
Total operating expenses	259,341	522,526	1,288,962	1,814,924
OPERATING INCOME	4,734	29,809	342,707	325,569
Other income, net	5,711	4,288	15,145	12,551
Interest expense, net of capitalized interest	30,119	21,411	89,871	59,814
(LOSS) INCOME BEFORE INCOME TAXES AND EQUITY IN EARNINGS OF AFFILIATES	(19,674)	12,686	267,981	278,306
Income tax (benefit) provision	(20,505)	4,434	43,059	64,051
Equity in earnings of affiliates	701	4,801	2,778	6,145
NET INCOME	$ 1,532	$ 13,053	$ 227,700	$ 220,400
EARNINGS PER COMMON SHARE
Basic (usd per share)	$ 0.02	$ 0.14	$ 2.35	$ 2.29
Diluted (usd per share)	$ 0.02	$ 0.14	$ 2.33	$ 2.28
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	97,168	96,154	96,849	96,055
Diluted (in shares)	97,886	96,620	97,538	96,527
Utility
Natural gas purchases:
Gas purchases - Utility and Nonutility	$ 42,344	$ 100,277	$ 381,160	$ 435,438
Nonutility
Natural gas purchases:
Gas purchases - Utility and Nonutility	$ 75,917	$ 290,806	$ 468,351	$ 980,135