​ ​ ​

December 31,

 

2025

  ​ ​ ​

2024

(in thousands)

Mining equipment and processing facilities

$

2,322,784

$

2,131,697

Land and coal mineral rights

 

510,790

 

508,892

Oil & gas mineral interests

895,920

878,083

Buildings, office equipment, improvements and other miscellaneous equipment

 

345,402

 

315,092

Construction, mine development and other projects in progress

 

84,820

 

213,579

Mine development costs

 

342,932

 

388,192

Property, plant and equipment, at cost

 

4,502,648

 

4,435,535

Less accumulated depreciation, depletion and amortization

 

(2,364,206)

 

(2,269,265)

Total property, plant and equipment, net

$

2,138,442

$

2,166,270

Historical Timeline

Fiscal YearFiled
2025Feb 26, 2026Showing above
2024Feb 27, 2025
2023Feb 23, 2024
2022Feb 24, 2023
2021Feb 25, 2022
2020Feb 23, 2021
2019Feb 20, 2020
2018Feb 22, 2019
2017Feb 23, 2018
2016Feb 24, 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.