CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
OPERATING REVENUES
Utility		$ 120,782	$ 104,538	$ 622,167	$ 631,389
Nonutility		314,160	438,897	1,490,797	1,636,394
Total operating revenues		434,942	543,435	2,112,964	2,267,783
Gas purchases:
Gas purchases - Utility		54,861	53,080	280,627	227,268
Gas purchases - Nonutility		289,757	422,734	1,370,408	1,489,041
Gas purchases - Related parties		2,126	2,156	6,455	6,392
Operation and maintenance		62,559	68,496	185,620	179,453
Regulatory rider expenses		4,136	5,542	32,159	36,915
Depreciation and amortization		23,149	20,320	67,292	64,634
Energy and other taxes		2,373	7,822	8,678	45,855
Total operating expenses		438,961	580,150	1,951,239	2,049,558
OPERATING (LOSS) INCOME		(4,019)	(36,715)	161,725	218,225
Other income, net		1,829	1,731	5,456	8,735
Interest expense, net of capitalized interest		11,648	11,037	37,643	34,740
(LOSS) INCOME BEFORE INCOME TAXES AND EQUITY IN EARNINGS OF AFFILIATES		(13,838)	(46,021)	129,538	192,220
Income tax benefit		(1,941)	(28,534)	(11,854)	(47,801)
Equity in earnings of affiliates		3,495	3,213	10,027	9,670
NET (LOSS) INCOME	[1]	$ (8,402)	$ (14,274)	$ 151,419	$ 249,691
(LOSS) EARNINGS PER COMMON SHARE
Basic (usd per share)		$ (0.09)	$ (0.16)	$ 1.70	$ 2.85
Diluted (usd per share)	[2]	$ (0.09)	$ (0.16)	$ 1.69	$ 2.84
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)		89,600	87,888	88,995	87,493
Diluted (in shares)		89,600	87,888	89,402	87,884

[1] Includes income tax benefit related to the Tax Act of $844,000 and $57.7 million, for the three and nine months ended June 30, 2018, respectively.

[2] Since there was a net loss for the three months ended June 30, 2019 and 2018, incremental shares of 409,000 and 402,000, respectively, were not included in the computation of diluted loss per common share, as their effect would have been anti-dilutive.There were no anti-dilutive shares excluded from the calculation of diluted earnings per share during the nine months ended June 30, 2019 and 2018.