Shell chief executive Ben van Beurden is reported to be stepping down next year, with the UK-headquartered supermajor starting to shortlist candidates to succeed him, Reuters reported.

The company’s board succession committee has met in recent months to plan ahead of van Beurden’s departure and interview potential successors, sources told the agency.

Shell declined to comment on the matter to Upstream.

Four candidates have been mentioned as likely in the running for the position. These include Wael Sawan, Shell’s head of integrated gas and renewables and Huibert Vigeveno, who is in charge of downstream refining operations, according to Reuters.