Chevron is the world's fifth largest global energy company and engages in oil exploration and production; refining, marketing and transport; chemicals manufacturing and sales; and power generation. The company is currently embroiled in major lawsuits for the contamination of Ecuador (Aguinda v. Chevron) and alleged crimes in Nigeria (Bowoto v. Chevron).
Royal Dutch Shell plc is a multinational oil company of British and Dutch origins. It is one of the largest private sector energy corporations in the world, and one of the six "supermajors" (vertically integrated private sector oil exploration, natural gas, and petroleum product marketing companies). The company's headquarters are in The Hague, Netherlands, with its registered office in London, United Kingdom (Shell Centre).
