Consolidated Statements Of Income And Earnings Reinvested In The Business (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
INCOME
Operating Revenues	$ 417,442	$ 428,704	$ 1,572,742	$ 1,804,824
Operating Expenses:
Purchased Gas	4,952	35,425	167,444	450,461
Property, Franchise and Other Taxes	21,201	20,427	66,635	71,999
Depreciation, Depletion and Amortization	113,454	102,410	348,179	299,973
Impairment of Exploration and Production Properties	200,696	0	200,696	0
Total Operating Expenses	468,882	274,608	1,166,448	1,174,980
Operating Income (Loss)	(51,440)	154,096	406,294	629,844
Other Income (Expense):
Other Income (Deductions)	3,188	3,551	12,989	12,754
Interest Expense on Long-Term Debt	(32,876)	(26,311)	(89,791)	(83,499)
Other Interest Expense	(1,341)	(5,781)	(14,250)	(15,485)
Income (Loss) Before Income Taxes	(82,469)	125,555	315,242	543,614
Income Tax Expense (Benefit)	(28,311)	32,935	70,108	140,425
Net Income (Loss) Available for Common Stock	(54,158)	92,620	245,134	403,189
EARNINGS REINVESTED IN THE BUSINESS
Balance at Beginning of Period	2,090,172	1,810,454	1,885,856	1,587,085
Beginning Retained Earnings Unappropriated And Current Period Net Income	2,036,014	1,903,074	2,130,990	1,990,274
Dividends on Common Stock	(47,195)	(45,444)	(138,354)	(132,644)
Balance at June 30	$ 1,970,384	$ 1,857,630	$ 1,970,384	$ 1,857,630
Basic:
Net Income Available for Common Stock (in dollars per share)	$ (0.59)	$ 1.01	$ 2.67	$ 4.40
Diluted:
Net Income Available for Common Stock (in dollars per share)	$ (0.59)	$ 1.00	$ 2.65	$ 4.37
Weighted Average Common Shares Outstanding:
Used in Basic Calculation (shares)	91,874,049	91,803,638	91,966,034	91,725,286
Used in Diluted Calculation (shares)	91,874,049	92,294,666	92,467,787	92,268,904
Dividends Per Common Share:
Dividends Declared (in dollars per share)	$ 0.515	$ 0.495	$ 1.505	$ 1.445
Earnings Reinvested in The Business
Other Income (Expense):
Net Income (Loss) Available for Common Stock	$ (54,158)	$ 92,620	$ 245,134	$ 403,189
EARNINGS REINVESTED IN THE BUSINESS
Share Repurchases	(18,435)	0	(22,252)	0
Dividends on Common Stock	(47,195)	(45,444)	(138,354)	(132,644)
Utility
INCOME
Operating Revenues	124,858	144,538	616,977	862,914
Operating Expenses:
Operation and Maintenance	53,412	50,080	166,405	156,885
Exploration and Production and Other Revenues
INCOME
Operating Revenues	220,905	216,581	739,537	738,107
Operating Expenses:
Operation and Maintenance	35,148	27,659	102,768	86,315
Pipeline and Storage and Gathering Revenues
INCOME
Operating Revenues	71,679	67,585	216,228	203,803
Operating Expenses:
Operation and Maintenance	$ 40,019	$ 38,607	$ 114,321	$ 109,347