CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
OPERATING REVENUES
Utility	$ 233,469		$ 218,849
Nonutility	644,936		517,170
Total operating revenues	878,405		736,019
OPERATING EXPENSES
Gas Purchases - Utility	111,202		111,321
Gas Purchases - Nonutility	663,530		455,427
Operation and maintenance	42,023		40,070
Regulatory rider expenses	19,832		13,982
Depreciation and amortization	12,566		11,303
Energy and other taxes	17,028		16,725
Total operating expenses	866,181		648,828
OPERATING INCOME	12,224		87,191
Other income	1,127		265
Interest expense, net of capitalized interest	6,295		5,825
INCOME BEFORE INCOME TAXES AND EQUITY IN EARNINGS OF AFFILIATES	7,056		81,631
Income tax provision	1,505		23,980
Equity in earnings of affiliates	2,142		2,555
NET INCOME	$ 7,693		$ 60,206
EARNINGS PER COMMON SHARE
BASIC (usd per share)	$ 0.18		$ 1.44
DILUTED (usd per share)	$ 0.18	[1]	$ 1.44	[1]
DIVIDENDS PER COMMON SHARE (usd per share)	$ 0.42		$ 0.40
WEIGHTED AVERAGE SHARES OUTSTANDING
BASIC (in shares)	42,021		41,695
DILUTED (in shares)	42,239		41,758

[1] There were no anti-dilutive shares excluded from the calculation of diluted earnings per share for the three months ended December 31, 2013 and 2012.