What is the relationship between Exxon and diesel in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Europe's most advanced plants such as Exxon Mobil's 320,000 bpd Antwerp refinery, which is planned for a $1 billion upgrade to boost its diesel yield and Royal Dutch Shell's 404,000 bpd Pernis refinery, stand to benefit less from higher gasoline demand.

Answer: product_or_material_produced