Income Taxes (Tables)

6 Months Ended

Mar. 31, 2013

Income Taxes [Abstract]

Components Of Federal And State Income Taxes Included In The Consolidated Statements Of Income

	Six Months Ended
	March 31,
	2013		2012
Current Income Taxes
Federal	$	(6,318)	$	(4)
State		2,496		3,906
Deferred Income Taxes
Federal		82,788		66,416
State		19,769		15,280
		98,735		85,598
Deferred Investment Tax Credit		(213)		(291)
Total Income Taxes	$	98,522	$	85,307
Presented as Follows:
Other Income		(213)		(291)
Income Tax Expense		98,735		85,598
Total Income Taxes	$	98,522	$	85,307

Schedule Of Income Tax Reconciliation By Applying Federal Income Tax Rate

	Six Months Ended
	March 31,
	2013		2012
U.S. Income Before Income Taxes	$	252,186	$	213,398
Income Tax Expense, Computed at U.S. Federal
Statutory Rate of 35%	$	88,265	$	74,689
Increase (Reduction) in Taxes Resulting from:
State Income Taxes		14,473		12,471
Miscellaneous		(4,216)		(1,853)
Total Income Taxes	$	98,522	$	85,307

Significant Components Of Deferred Tax Liabilities And Assets

	At March 31, 2013		At September 30, 2012
Deferred Tax Liabilities:
Property, Plant and Equipment	$	1,427,288	$	1,333,574
Pension and Other Post-Retirement Benefit
Costs		239,234		236,431
Other		38,060		43,294
Total Deferred Tax Liabilities		1,704,582		1,613,299
Deferred Tax Assets:
Pension and Other Post-Retirement Benefit
Costs		(275,594)		(276,501)
Tax Loss Carryforwards		(188,968)		(198,744)
Other		(94,667)		(83,052)
Total Deferred Tax Assets		(559,229)		(558,297)
Total Net Deferred Income Taxes	$	1,145,353	$	1,055,002
Presented as Follows:
Net Deferred Tax Liability/(Asset) – Current		(34,241)		(10,755)
Net Deferred Tax Liability – Non-Current		1,179,594		1,065,757
Total Net Deferred Income Taxes	$	1,145,353	$	1,055,002