Property, Plant and Equipment

3 Months Ended

Mar. 31, 2018

Property, Plant and Equipment

Property, Plant and Equipment

NOTE 6. PROPERTY, PLANT AND EQUIPMENT, NET

Property, plant and equipment include the following (in millions):

	Estimated
	Useful Life	March 31,		December 31,
	(years)	2018		2017
Machinery and equipment	5 - 30	$	3.7	$	3.7
Vehicles	3 - 5		2.7		2.6
Mechanical refrigeration units	30		17.2		17.1
NGL storage tanks	15		4.3		4.3
Workover rigs	5 - 20		188.7		174.9
Other property, plant and equipment	3 - 30		14.1		12.0
Property, plant and equipment			230.7		214.6
Less: accumulated depreciation			(30.8)		(25.4)
Property, plant and equipment, net		$	199.9	$	189.2

Depreciation expense was $5.9 million and $3.5 million for the three months ended March 31, 2018 and 2017, respectively.