PROPERTY AND EQUIPMENT

6 Months Ended

Jun. 30, 2017

PROPERTY AND EQUIPMENT

PROPERTY AND EQUIPMENT

NOTE 6.     PROPERTY AND EQUIPMENT

Property and equipment consisted of the following:

	June 30,		December 31,
$s in thousands	2017		2016
Cell development costs	$	130,458	$	128,821
Land and improvements		34,557		34,285
Buildings and improvements		81,347		78,081
Railcars		17,299		17,299
Vehicles and other equipment		114,215		110,267
Construction in progress		33,096		24,392
Total property and equipment		410,972		393,145
Accumulated depreciation and amortization		(180,855)		(166,908)
Property and equipment, net	$	230,117	$	226,237

Depreciation and amortization expense for the three months ended June 30, 2017 and 2016 was $7.0 million and $6.2 million, respectively. Depreciation and amortization expense for the six months ended June 30, 2017 and 2016 was $13.6 million and $12.1 million, respectively.