STATEMENTS OF INCOME (UNAUDITED) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Operating Revenues:
Utility	$ 298,623	$ 388,375	$ 549,525	$ 665,818
Other	274	0	1,355	0
Total Operating Revenues	298,897	388,375	550,880	665,818
Utility
Natural and propane gas	180,221	260,706	326,972	434,071
Other operation expenses	38,043	39,500	75,608	74,362
Maintenance	5,761	6,441	11,069	12,581
Depreciation and amortization	10,175	9,739	20,264	19,377
Taxes, other than income taxes	20,093	24,686	34,760	40,434
Total Utility Operating Expenses	254,293	341,072	468,673	580,825
Other	51	(5)	132	0
Total Operating Expenses	254,344	341,067	468,805	580,825
Operating Income	44,553	47,308	82,075	84,993
Other Income and (Income Deductions) - Net	1,378	485	3,317	2,300
Interest Charges:
Interest on long-term debt	5,740	5,740	11,479	11,682
Other interest charges	596	592	1,215	1,369
Total Interest Charges	6,336	6,332	12,694	13,051
Income Before Income Taxes	39,595	41,461	72,698	74,242
Income Tax Expense	13,670	15,229	25,076	26,555
Net Income	$ 25,925	$ 26,232	$ 47,622	$ 47,687