Summary Of Significant Accounting Policies (Tables)

3 Months Ended

Dec. 31, 2012

Summary Of Significant Accounting Policies [Abstract]

Schedule Of Non-Cash Capital Expenditures

	At December 31,		At September 30,
	2012	2011	2012	2011
	(Thousands)
Non-cash Capital Expenditures	$86,144	$154,960	$67,503	$ 125,115

Components Of Accumulated Other Comprehensive Income (Loss)

	At December 31, 2012	At September 30, 2012
Funded Status of the Pension and the Post-Retirement Benefit Plans	$ (100,561)	$ (100,561)
Net Unrealized Gain (Loss) on Derivative Financial Instruments	12,280	(1,602)
Net Unrealized Gain on Securities Available for Sale	3,637	3,143
Accumulated Other Comprehensive Loss	$ (84,644)	$ (99,020)

Schedule Of Other Current Assets

	At December 31, 2012	At September 30, 2012
Prepayments	$ 6,168	$ 8,316
Prepaid Property and Other Taxes	15,295	14,455
Federal Income Taxes Receivable	268	268
State Income Taxes Receivable	-	2,065
Fair Values of Firm Commitments	2,535	1,291
Regulatory Assets	24,842	29,726
	$ 49,108	$ 56,121

Schedule Of Other Accruals And Current Liabilities

	At December 31, 2012	At September 30, 2012
Accrued Capital Expenditures	$ 54,339	$ 36,460
Regulatory Liabilities	16,207	18,289
Reserve for Gas Replacement	6,718	-
Other	26,318	24,350
	$ 103,582	$ 79,099