STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating Activities:
Net Income	$ 47,622	$ 47,687
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	20,287	19,377
Deferred income taxes and investment tax credits	5,808	(8,905)
Other - net	(1,480)	(685)
Changes in assets and liabilities:
Accounts receivable - net	(40,457)	(75,110)
Unamortized purchased gas adjustments	14,478	17,248
Deferred purchased gas costs	(30,160)	60,725
Accounts payable	(7,784)	14,518
Delayed customer billings - net	(28,694)	(49,207)
Taxes accrued	18,323	31,721
Natural gas stored underground	59,709	73,351
Other assets and liabilities	(7,153)	169
Net cash provided by operating activities	50,499	130,889
Investing Activities:
Capital expenditures	(40,517)	(29,620)
Other investments	(1,294)	(1,421)
Net cash used in investing activities	(41,811)	(31,041)
Financing Activities:
Maturity of first mortgage bonds	0	(25,000)
Repayment of short-term debt - net	(46,000)	(129,650)
Borrowings from Laclede Group	170,468	116,705
Repayment of borrowings from Laclede Group	(115,808)	(43,985)
Changes in book overdrafts	357	(291)
Dividends paid	(18,409)	(17,868)
Issuance of common stock to Laclede Group	1,093	716
Excess tax benefits from stock-based compensation	163	243
Other	(27)	(19)
Net cash used in financing activities	(8,163)	(99,149)
Net Increase in Cash and Cash Equivalents	525	699
Cash and Cash Equivalents at Beginning of Period	923	1,009
Cash and Cash Equivalents at End of Period	1,448	1,708
Supplemental Disclosure of Cash Paid (Refunded) During the Period for:
Interest	12,621	13,331
Income taxes	$ (3,759)	$ (4,059)