Inventories (Tables)

6 Months Ended

Mar. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories comprise the following:

	March 31, 2015		September 30, 2014		March 31, 2014
Gas Utility natural gas	$	6,260	$	82,664	$	7,490
Materials, supplies and other	13,273		12,555		13,139
Total inventories	$	19,533	$	95,219	$	20,629