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Property and Equipment (Tables)
3 Months Ended
Mar. 31, 2021
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and equipment consist of the following:
Estimated
useful lives
(in years)
March 31,December 31,
($ in thousands)20212020
LandN/A$38,448 $38,346 
Field services equipment
2-7
1,309,525 1,249,933 
Vehicles
4-7
58,545 59,741 
Buildings and facilities
5-30
156,499 156,109 
Mineral reserves
>25
78,793 78,793 
Office equipment and furniture
2-7
6,946 6,840 
1,648,756 1,589,762 
Less accumulated depreciation and depletion(678,198)(622,530)
970,558 967,232 
Construction in-progressN/A135,380 153,718 
$1,105,938 $1,120,950