v3.25.4
Accounting For Suspended Exploratory Well Costs (Tables)
 12 Months Ended
Dec. 31, 2025
Oil and Gas, Capitalized Exploratory Well Cost [Abstract]  
Change In Capitalized Suspended Exploratory Well Costs
Change in capitalized suspended exploratory well costs
(millions of dollars)
202520242023
 
Balance beginning at January 13,600 3,559 3,512 
Additions pending the determination of proved reserves250 453 200 
Charged to expense(432)(69)(95)
Reclassifications to wells, facilities and equipment based on the determination of proved reserves(141)(292)(142)
Divestments/Other9 (51)84 
Ending balance at December 313,286 3,600 3,559 
Ending balance attributed to equity companies included above225 225 306 
Period End Capitalized Suspended Exploratory Well Costs
Period-end capitalized suspended exploratory well costs
(millions of dollars)
202520242023
 
Capitalized for a period of one year or less250 453 200 
Capitalized for a period of between one and five years933 583 1,030 
Capitalized for a period of between five and ten years1,144 1,544 1,411 
Capitalized for a period of greater than ten years959 1,020 918 
Capitalized for a period greater than one year - subtotal3,036 3,147 3,359 
Total3,286 3,600 3,559 
Number Of Projects With Capitalized Suspended Exploratory Well Costs
 202520242023
Number of projects that only have exploratory well costs capitalized for a period of one year or less1 5 — 
Number of projects that have exploratory well costs capitalized for a period greater than one year25 24 31 
Total26 29 31