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Property, Plant and Equipment, net
12 Months Ended
Dec. 31, 2023
Property, Plant and Equipment, net  
Property, Plant and Equipment, net

7. Property, Plant and Equipment, net

Property, plant and equipment, net is comprised of the following:

December 31, 

(in thousands)

2023

2022

Compression equipment, facilities and other fleet assets

$

3,326,919

$

3,234,239

Land and buildings

 

30,169

 

44,304

Transportation and shop equipment

 

100,474

 

93,189

Computer hardware and software

 

77,532

 

77,357

Other

 

5,678

 

5,754

Property, plant and equipment

 

3,540,772

 

3,454,843

Accumulated depreciation

 

(1,238,790)

 

(1,255,590)

Property, plant and equipment, net

$

2,301,982

$

2,199,253

Depreciation expense was $159.3 million, $155.4 million and $167.6 million during the years ended December 31, 2023, 2022 and 2021, respectively. Assets under construction of $64.7 million and $92.5 million at December 31, 2023 and 2022, respectively, primarily consisted of compression equipment, facilities and other fleet assets.