Diamond Offshore Drilling Company History Timeline


In 1989, Loews Corporation acquired the company for $48.5 million.


In 1992, Diamond M Corporation acquired ODECO from Murphy Oil for $358 million.


Shortly thereafter, Diamond M Corp. briefly changed its name to Diamond M-ODECO Drilling Inc. before becoming Diamond Offshore Drilling, Inc. in 1993.


In October 1995, the company once again became a public company via an initial public offering, listing on the New York Stock Exchange.


In April 1996, the company acquired Arethusa for $516 million in stock.


In May 2012, the company ordered a $655 million drillship from Hyundai Heavy Industries.


The Ocean BlackHawk, an ultra-deepwater drillship, commenced operations in 2014.


In April 2020, the company filed for bankruptcy in part due to the oil price collapse following the reduction in oil demand during the COVID-19 pandemic.

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Diamond Offshore Drilling History FAQs

How Old Is Diamond Offshore Drilling?

Diamond Offshore Drilling is 45 years old.

Who Is The Founder Of Diamond Offshore Drilling?

Don McMahon founded Diamond Offshore Drilling.

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Diamond Offshore Drilling may also be known as or be related to Diamond Offshore, Diamond Offshore Drilling, Diamond Offshore Drilling Inc, Diamond Offshore Drilling Inc. and Diamond Offshore Drilling, Inc.