Diamond Offshore Drilling is one of the leading deepwater drilling contractors. It owns and operates one of the largest fleets of offshore drilling units in the world. The company's diverse fleet consists of approximately 30 semi-submersibles, 15 jack-ups and a drillship. Diamond Offshore provides contracted drilling services to the energy industry throughout the world. The company s veteran crew has drilled the North Sea, the Gulf of Alaska, the Straits of Magellan, the South China Sea and Australia's Bass Strait. Diamond Offshore employs more than 4,200 men and women worldwide. Headquartered in Houston, Diamond Offshore also maintains regional offices in Louisiana, Africa, Australia, Brazil, Indonesia, Scotland, Singapore and The Netherlands.