CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
OPERATING REVENUES
Utility		$ 199,965	$ 209,787
Nonutility		611,802	495,518
Total operating revenues		811,767	705,305
Gas purchases:
Gas purchases - Utility		87,649	77,602
Gas purchases - Nonutility		535,383	445,084
Gas purchases - Related parties		2,185	2,149
Operation and maintenance		60,102	54,160
Regulatory rider expenses		12,632	11,769
Depreciation and amortization		21,832	21,854
Energy and other taxes			16,491
Taxes, Other		3,241
Total operating expenses		723,024	629,109
OPERATING INCOME		88,743	76,196
Other income, net		869	5,976
Interest expense, net of capitalized interest		13,486	11,905
INCOME BEFORE INCOME TAXES AND EQUITY IN EARNINGS OF AFFILIATES		76,126	70,267
Income tax benefit		(6,961)	(50,168)
Equity in earnings of affiliates		3,161	3,264
NET INCOME		$ 86,248	$ 123,699
EARNINGS PER COMMON SHARE
Basic (usd per share)		$ 0.97	$ 1.42
Diluted (usd per share)	[1]	$ 0.97	$ 1.42
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)		88,547	86,996
Diluted (in shares)		88,946	87,347

[1] There were no anti-dilutive shares excluded from the calculation of diluted earnings per share for fiscal 2019 and 2018.