XML 213 R14.htm IDEA: XBRL DOCUMENT v3.24.0.1
Exploration for and evaluation of oil and natural gas resources
 12 Months Ended
Dec. 31, 2023
Exploration For And Evaluation Of Mineral Resources [Abstract]  
Exploration for and evaluation of oil and natural gas resources Exploration for and evaluation of oil and natural gas resources
The following financial information represents the amounts included within the group totals relating to activity associated with the exploration for and evaluation of oil and natural gas resources. All such activity is recorded within the gas & low carbon energy and oil production & operations segments.
For information on significant judgements made in relation to oil and natural gas accounting see Intangible assets in Note 1.
$ million
202320222021
Exploration and evaluation costs
Exploration expenditure written off746 385 167 
Other exploration costs
251 200 257 
Exploration expense for the year997 585 424 
Impairment losses20 2 1 
Intangible assets – exploration and appraisal expenditurea
4,328 4,213 4,289 
Liabilities109 88 98 
Net assets4,219 4,125 4,191 
Cash used in operating activities251 200 257 
Cash used in investing activities1,039 909 369 
aAmount capitalized at 31 December 2023, 2022 and 2021 relates to assets in various regions. The largest of these is approximately $600 million capitalized in the Middle East region (2022 approximately $600 million and 2021 approximately $700 million and capitalized in the Middle East region).