Property, plant and equipment consists of the following as of December 31, 2024 and 2023:

 

 

December 31, 2024

 

December 31, 2023

 

Land

$

1,568

 

$

748

 

Buildings and improvements

 

36,434

 

 

30,329

 

Machinery and equipment

 

275,692

 

 

255,421

 

Gas mineral rights

 

35,526

 

 

35,526

 

Construction work in progress

 

95,551

 

 

67,747

 

Total

$

444,771

 

$

389,771

 

Less: Accumulated depreciation and amortization

 

(192,483

)

 

(175,482

)

Property, plant & equipment, net

$

252,288

 

$

214,289

 

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.