McDermott to Present at Investor Conference

McDermott International, Inc. (NYSE: MDR) today announced that David Dickson, President and Chief Executive Officer, is scheduled to present at Pareto Securities’ 22nd Oil and Offshore Conference in Oslo, Norway on Wednesday, September 2, 2015 at 7:10 a.m. Central time.

McDermott will post its slides prior to the presentation at www.mcdermott-investors.com in the “Webcasts & Presentations” section.

ABOUT McDERMOTT

McDermott is a leading provider of integrated engineering, procurement, construction and installation (EPCI) services for upstream field developments worldwide. The Company delivers fixed and floating production facilities, pipelines and subsea systems from concept to commissioning for complex Offshore and Subsea oil and gas projects to help oil companies safely produce and transport hydrocarbons. Our clients include national and major energy companies. Operating in more than 20 countries across the world, our locally focused and globally integrated resources include approximately 11,700 employees and contractors, a diversified fleet of specialty marine construction vessels, fabrication facilities and engineering offices. We are renowned for our extensive knowledge and experience, technological advancements, performance records, superior safety and commitment to deliver. McDermott has served the energy industry since 1923 and is listed on the New York Stock Exchange. As used in this press release, McDermott includes McDermott International, Inc. and its subsidiaries and affiliates. To learn more, please visit our website at www.mcdermott.com.

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McDERMOTTInvestor RelationsDarcey Matthews, [phone]V.P., Investor [e-mail] RelationsRichard Goins, [phone]Director, Global [e-mail]