Property and equipment, together with the related estimated useful lives at December 31, 2025 and 2024, were as follows (in thousands):

December 31,

 

  ​ ​ ​

2025

  ​ ​ ​

2024

Useful Lives

Land

$

501

$

501

 

-

Buildings and other

10,890

10,064

3 to 40 years

Recording equipment

 

156,372

 

140,307

 

5 to 10 years

Vibrator energy sources

 

65,298

 

64,997

 

5 to 15 years

Vehicles

 

20,956

 

22,195

 

1.5 to 10 years

 

254,017

 

238,064

Less accumulated depreciation

 

(223,242)

 

(225,085)

Property and equipment, net

$

30,775

$

12,979

Historical Timeline

Fiscal YearFiled
2025Mar 31, 2026Showing above
2024Apr 2, 2025
2023Apr 1, 2024
2022Mar 13, 2023
2021Mar 18, 2022
2020Mar 16, 2021
2019Mar 6, 2020
2018Mar 6, 2019
2017Mar 9, 2018
2016Mar 13, 2017
2015Mar 16, 2016

About PP&E Disclosures

The PP&E disclosure details a company's physical asset base — land, buildings, machinery, and equipment — along with the depreciation methods and useful life assumptions that determine how these costs flow through the income statement. Capitalization policy thresholds reveal management's judgment on the boundary between expense and asset, directly affecting both reported earnings and asset values.

Key signals: changes in estimated useful lives or depreciation methods can materially shift reported earnings without any operational change. Compare capital expenditures against depreciation expense — when capex consistently trails depreciation, the asset base may be aging and underinvested. Watch for large asset impairments or write-downs that signal overvalued carrying amounts. Asset retirement obligations reveal future environmental or decommissioning costs that are often underappreciated. Compare PP&E intensity (PP&E-to-revenue) against industry peers to assess capital efficiency and competitive positioning.