Press Release

HOUSTON--(BUSINESS WIRE)--Feb. 1, 2012-- Diamond Offshore Drilling, Inc. (NYSE:DO) announced today that Lawrence R. Dickerson, President and Chief Executive Officer of Diamond Offshore, is scheduled to speak at the Credit Suisse Energy Summit 2012 in Vail, Colorado on Wednesday, February 8, 2012 at approximately 8:35 a.m. Central Time. A webcast will be available live and for replay at http://www.diamondoffshore.com.

ABOUT DIAMOND OFFSHORE

Diamond Offshore provides contract drilling services to the energy industry and is a leader in deepwater drilling. Diamond Offshore’s fleet of offshore drilling rigs consists of 32 semisubmersibles, 13 jack-ups, and one drillship, in addition to three ultra-deepwater drillships currently under construction. For additional information and access to SEC filings, please visit the Company’s website at http://www.diamondoffshore.com.

Source: Diamond Offshore Drilling, Inc.

Diamond Offshore Drilling, Inc.
Darren Daugherty, (281) 492-5370
Director, Investor Relations