Inventories (Tables)

12 Months Ended

Sep. 30, 2012

Inventory Disclosure [Abstract]

Inventories

Inventories comprise the following at September 30:

	2012		2011
Gas Utility natural gas	$	57,663	$	95,590
Materials, supplies and other	9,671		8,673
Total inventories	$	67,334	$	104,263