Transocean Inc. · Houston, TX United States ·(NYSE: RIG)

Like an NFL tight end, offshore drilling contractor Transocean dreams of going deep but doesn't mind eating a little mud. Transocean specializes in deepwater drilling and it isn't afraid of harsh environments. The company operates in the world's major offshore oil-producing regions, including Africa, Asia, Brazil, Canada, India, the Middle East, the Gulf of Mexico, and the North Sea. It has a fleet of 136 mobile offshore drilling units (67 semisubmersibles and drillships, 65 jackup rigs, and four other rigs). Transocean's other operations include management of third-party drilling services. Major customers include BP and Chevron. In a major expansion, in 2007 it acquired GlobalSantaFe for almost $18 billion. To read the full description, subscribe now.