v3.26.1
Property, Plant and Equipment (Tables)
 6 Months Ended
Jun. 30, 2026
Property, Plant, and Equipment [Abstract]  
Schedule of Net Changes in Capitalized Exploratory Well Costs The following table reflects the net changes in capitalized exploratory well costs during the six months ended June 30, 2026 and 2025.
(Thousands of dollars)20262025
Beginning balance at January 1$191,821 $72,055 
  Additions pending the determination of proved reserves190,427 38,469 
  Capitalized exploratory well costs charged to expense(10,627)— 
Balance at June 30$371,621 $110,524 
Schedule of Aging of Capitalized Exploratory Well Costs
The following table provides an aging of capitalized exploration costs based on the date the drilling operations were initiated for each individual project.
June 30,
20262025
(Thousands of dollars)Amount
No. of Projects
Amount
No. of Projects
Aging of capitalized well costs:
Zero to one year$— — $16,002 5 
One to two years228,318 3 72,004 3 
Two to three years120,979 3 — — 
Three years or more22,324 3 22,518 3 
$371,621 9 $110,524 11