Properties, including oil and gas properties, net Properties, including oil and gas properties, net (Tables)

12 Months Ended

Sep. 30, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Properties, including oil and natural gas properties, net, consist of the following:

	September 30,
	2014			2013
Oil and natural gas properties (full cost accounting method)
Unproved oil and natural gas properties and development costs not being amortized	$	20.2		$	36.4
Proved developed and undeveloped oil and natural gas properties	493.9			546.0
Less: Accumulated depletion	(68.4		)	(30.1		)
Total oil and natural gas properties, net	445.7			552.3
Other properties
Land, buildings and improvements	166.9			169.8
Gas gathering assets	21.1			21.1
Machinery, equipment and other	496.3			420.6
Capitalized leases	99.3			67.7
Construction in progress	32.3			46.8
Total other properties, at cost	815.9			726.0
Less: Accumulated depreciation	353.0			285.0
Total other properties, net	462.9			441.0
Total properties, including oil and natural gas properties, net	$	908.6		$	993.3