JAKARTA, Nov 16 (Reuters) - U.S. oil major Exxon Mobil is planning to invest up to $15 bln in a petrochemical project and carbon capture and storage (CCS) facilities in Indonesia, the country's President, Joko Widodo, said, according to a palace statement on Thursday.

The planned CCS facilities would be the biggest in Southeast Asia. Jokowi, as the president is known, met with Exxon Chairman Darren Woods during his trip to San Francisco. (Reporting by Fransiska Nangoy; Editing by Muralikumar Anantharaman)