Accounting For Suspended Exploratory Well Costs (Tables)

12 Months Ended

Dec. 31, 2024

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)	2024	2023	2022
Balance beginning at January 1	3,559	3,512	4,120
Additions pending the determination of proved reserves	453	200	378
Charged to expense	(69)	(95)	(259)
Reclassifications to wells, facilities and equipment based on the determination of proved reserves	(292)	(142)	(142)
Divestments/Other	(51)	84	(585)
Ending balance at December 31	3,600	3,559	3,512
Ending balance attributed to equity companies included above	225	306	306

Period End Capitalized Suspended Exploratory Well Costs

Period-end capitalized suspended exploratory well costs (millions of dollars)	2024	2023	2022
Capitalized for a period of one year or less	453	200	378
Capitalized for a period of between one and five years	583	1,030	969
Capitalized for a period of between five and ten years	1,544	1,411	1,410
Capitalized for a period of greater than ten years	1,020	918	755
Capitalized for a period greater than one year - subtotal	3,147	3,359	3,134
Total	3,600	3,559	3,512

Number Of Projects With Capitalized Suspended Exploratory Well Costs

	2024	2023	2022
Number of projects that only have exploratory well costs capitalized for a period of one year or less	5	—	10
Number of projects that have exploratory well costs capitalized for a period greater than one year	24	31	26
Total	29	31	36