Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment (Tables)

v3.22.1
Property, Plant and Equipment (Tables)
 3 Months Ended
Mar. 31, 2022
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
Property, plant and equipment include the following (in thousands):
March 31, December 31,
Useful Life 2022 2021
Pressure pumping equipment
3-5 years
 $ 220,959  $ 220,414 
Drilling rigs and related equipment
3-15 years
 111,334  111,478 
Machinery and equipment
7-20 years
 166,483  166,873 
Buildings(a)
15-39 years
 46,286  46,006 
Vehicles, trucks and trailers
5-10 years
 103,630  103,982 
Coil tubing equipment
4-10 years
 7,592  7,592 
Land N/A 13,377  13,417 
Land improvements
15 years or life of lease
 10,133  10,133 
Rail improvements
10-20 years
 13,793  13,793 
Other property and equipment(b)
3-12 years
 18,470  18,235 
712,057  711,923 
Deposits on equipment and equipment in process of assembly(c)
3,464  3,300 
715,521  715,223 
Less: accumulated depreciation(d)
554,516  538,637 
Total property, plant and equipment, net $ 161,005  $ 176,586 
a.    Included in Buildings at each of March 31, 2022 and December 31, 2021 are costs of $7.6 million related to assets under operating leases.
b.    Included in Other property and equipment at each of March 31, 2022 and December 31, 2021 are costs of $6.0 million related to assets under operating leases.
c.    Deposits on equipment and equipment in process of assembly represents deposits placed with vendors for equipment that is in the process of assembly and purchased equipment that is being outfitted for its intended use. The equipment is not yet placed in service.
d.    Includes accumulated depreciation of $7.0 million and $6.6 million at March 31, 2022 and December 31, 2021, respectively, related to assets under operating leases.
Schedule of Depreciation, Depletion, Accretion and Amortization expense
A summary of depreciation, depletion, amortization and accretion expense is below (in thousands):
Three Months Ended March 31,
2022 2021
Depreciation expense $ 16,925  $ 20,856 
Amortization expense 195  253 
Accretion and depletion expense 47  37 
Depreciation, depletion, amortization and accretion $ 17,167  $ 21,146