Diamond Offshore Drilling, Inc. is a
deepwater drilling contractor which provides drilling services to the
oil and gas industry. The company's headquarters are located in
Houston, Texas, but they have major offices in Australia, Brazil, Mexico, Scotland, Singapore and Norway. Diamond Offshore's beginnings can be traced back to the earliest days of the offshore drilling industry. Its predecessor companies were
ODECO,
Zapata Corporation, and Diamond M Drilling Co.