CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
OPERATING REVENUES
Utility		$ 119,206	$ 116,307	$ 513,348	$ 699,737
Nonutility		274,007	342,160	898,316	1,595,944
Total operating revenues		393,213	458,467	1,411,664	2,295,681
OPERATING EXPENSES
Gas Purchases - Utility		45,700	41,562	174,739	255,106
Gas Purchases - Nonutility		288,510	342,105	830,481	1,477,649
Gas Purchases - Related parties		2,108	3,102	6,259	9,490
Operation and maintenance		51,467	48,598	150,825	146,135
Regulatory rider expenses		6,360	8,516	37,203	72,671
Depreciation and amortization		18,671	15,574	52,897	45,164
Energy and other taxes		8,726	8,319	34,205	47,272
Total operating expenses		421,542	467,776	1,286,609	2,053,487
OPERATING (LOSS) INCOME		(28,329)	(9,309)	125,055	242,194
Other income, net		2,306	1,491	6,432	2,518
Interest expense, net of capitalized interest		7,787	7,327	21,933	21,005
(LOSS) INCOME BEFORE INCOME TAXES AND EQUITY IN EARNINGS OF AFFILIATES		(33,810)	(15,145)	109,554	223,707
Income tax (benefit) provision		(14,190)	(4,318)	10,347	56,693
Equity in earnings of affiliates		2,257	3,367	7,065	9,749
NET (LOSS) INCOME		$ (17,363)	$ (7,460)	$ 106,272	$ 176,763
(LOSS) EARNINGS PER COMMON SHARE
Basic (usd per share)		$ (0.20)	$ (0.09)	$ 1.24	$ 2.08
Diluted (usd per share)	[1]	(0.20)	(0.09)	1.23	2.05
DIVIDENDS DECLARED PER COMMON SHARE (usd per share)		$ 0.24	$ 0.23	$ 0.72	$ 0.68
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)		85,960	85,449	85,823	85,110
Diluted (in shares)		85,960	85,449	86,691	86,128

[1] Since there was a net loss for the three months ended June 30, 2016, and 2015, incremental shares of 897 and 1,018, 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 for the nine months ended June 30, 2016 and 2015.