Property, plant and equipment, net is summarized as follows:
December 31,
20252024
Land, site improvements and rights$513,835 $181,874 
Buildings and improvements72,997 19,015 
Bridges and tunnels969,551 176,753 
Terminal machinery and equipment1,357,502 1,211,272 
Proved oil and gas properties304,716 — 
Unproved oil and gas properties144,455 — 
Power plant850,489 — 
Track and track related assets335,850 109,871 
Railroad equipment9,694 9,627 
Railcars and locomotives181,892 95,437 
Computer hardware and software22,532 20,682 
Furniture and fixtures2,246 2,246 
Construction in progress263,495 153,244 
Other30,029 24,183 
5,059,283 2,004,204 
Less: Accumulated depreciation(477,512)(350,736)
Property, plant and equipment, net$4,581,771 $1,653,468 

Historical Timeline

Fiscal YearFiled
2025Mar 16, 2026Showing above
2024Mar 13, 2025
2023Mar 27, 2024
2022Mar 9, 2023

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.