Property, plant and equipment consists of the following (in thousands):
December 31,
20242023
Oil and natural gas properties
Proved$1,689,807 $1,538,724 
Unproved23,504 11,197 
Total oil and natural gas properties1,713,311 1,549,921 
Less accumulated depreciation, depletion and impairment(1,415,110)(1,393,801)
Net oil and natural gas properties capitalized costs298,201 156,120 
Land200 200 
Electrical infrastructure121,818 121,819 
Non-oil and natural gas equipment1,634 1,656 
Buildings and structures3,603 3,603 
Financing Leases1,286 1,399 
Total128,541 128,677 
Less accumulated depreciation and amortization(47,852)(42,184)
Other property, plant and equipment, net80,689 86,493 
Total property, plant and equipment, net$378,890 $242,613 

Historical Timeline

Fiscal YearFiled
2024Mar 11, 2025Showing above
2019Feb 27, 2020
2017Feb 22, 2018
2015Mar 30, 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.