The major components of our property, plant and equipment are as follows:

December 31,

 

  ​ ​ ​

2025

  ​ ​ ​

2024

 

(In thousands)

 

Land

$

27,541

$

31,529

Buildings

 

172,458

 

158,518

Drilling rigs and related equipment

 

12,561,048

 

12,084,276

Oilfield hauling and mobile equipment

 

227,386

 

228,730

Other machinery and equipment

 

259,822

 

252,369

$

13,248,255

$

12,755,422

Less: accumulated depreciation and amortization

 

(10,328,236)

 

(9,924,465)

$

2,920,019

$

2,830,957

Depreciation expense included in depreciation and amortization expense in our consolidated statements of income (loss) totaled $648.8 million, $632.9 million and $644.9 million during 2025, 2024 and 2023, respectively.

Historical Timeline

Fiscal YearFiled
2025Feb 13, 2026Showing above
2024Feb 13, 2025
2023Feb 12, 2024
2022Feb 9, 2023
2021Feb 18, 2022
2020Feb 24, 2021
2019Feb 25, 2020
2018Feb 28, 2019
2017Mar 1, 2018
2016Feb 28, 2017
2015Feb 26, 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.