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Field Equipment, Net
 12 Months Ended
Dec. 31, 2015
Field Equipment [Abstract]  
Field Equipment, Net

Note 7: Field equipment, net

 

 

 

December 31,

 

 

 

2015

 

 

2014

 

Field equipment

 

$

9,226

 

 

$

3,942

 

Less: accumulated depreciation

 

 

(3,197

)

 

 

(1,925

)

Field equipment, net

 

$

6,029

 

 

$

2,017

 

 

Depreciation expense was $1,555, $1,076 and 696 for the years ended December 31, 2015, 2014 and 2013, respectively.