The Shell Group is a multinational oil and gas company headquartered in the Netherlands. It is one of the largest companies in the world and is involved in exploration, production, refining, distribution, and marketing of oil and gas. The Shell Group also has interests in petrochemicals, chemicals, and renewable energy sources. The term OARS refers to the organization's four main business areas: Oil, Refining, Supply & Trading, and Renewables & Alternative Energy.