As at December 31,
(Thousands of U.S. Dollars)20252024
Oil and natural gas properties  
Proved$5,587,422 $5,298,085 
Unproved108,339 119,520 
 5,695,761 5,417,605 
Other (1)
78,780 97,795 
5,774,541 5,515,400 
Accumulated depletion, depreciation and impairment (4,470,121)(4,092,269)
$1,304,420 $1,423,131 
(1) The “Other” category includes $65.0 million right-of-use assets for finance leases and operating leases, which had a net book value of $30.8 million as at December 31, 2025 (December 31, 2024 - $70.1 million, which had a net book value of $35.1 million).
Asset impairment for the year ended December 31, 2025 and 2024, was as follows:
As at December 31,
(Thousands of U.S. Dollars)20252024
Impairment of oil and gas properties - Canada
$78,560 $— 
Impairment of oil and gas properties - Colombia
57,701 — 
$136,261 $ 

Historical Timeline

Fiscal YearFiled
2025Mar 4, 2026Showing above
2024Feb 24, 2025
2023Feb 20, 2024
2022Feb 22, 2023
2021Feb 23, 2022
2020Feb 25, 2021
2019Feb 27, 2020
2018Feb 27, 2019
2017Feb 27, 2018
2016Mar 1, 2017
2015Feb 29, 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.