What is the relationship between Petrobras and gas 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.

Justin Solomon | CNBC Petrobras gas station in Brazil Petrobras has more than $100 billion in debt and a further downturn in the company could lead to widespread economic problems, given Brazil is one of the largest oil producers in the world, Cramer added.
product_or_material_produced