McDermott Appoints Jack McCormack to Executive Vice President, Chief Operating Officer

McDermott International, Inc. (NYSE:MDR) (“McDermott”), announced today that John T. (“Jack”) McCormack has been appointed Executive Vice President, Chief Operating Officer of McDermott International, Inc. effective June 30, 2011.

Jack McCormack, McDermott's Executive Vice President, Chief Operating Officer (Photo: Business Wire)

“Jack has been instrumental in leading our Asia Pacific and Middle East operations to exceptional performance,” said Stephen M. Johnson, McDermott’s Chairman, President and Chief Executive Officer. “Jack has been with McDermott since 2003 and has extensive experience in the capture and execution of major engineering and construction projects. His performance and background make him uniquely qualified for this position.”

McCormack will succeed McDermott’s current Chief Operating Officer John T. Nesser who previously indicated his intention to retire from McDermott in 2011.

“John Nesser’s service to McDermott’s employees, customers and shareholders has been nothing less than extraordinary. In John’s nearly 13 years of service he has led both the Legal & Administrative functions as well as served as our Chief Operating Officer. He has created significant value for shareholders in each. I know of few executives in our industry that have the business knowledge, intellectual capability and personal integrity that John possesses. I wish John every success in his retirement,” said Johnson.

ABOUT McDERMOTT

McDermott is a leading engineering, procurement, construction and installation (“EPCI”) company focused on executing complex offshore oil and gas projects worldwide. Providing fully integrated EPCI services for upstream field developments, the Company delivers fixed and floating production facilities, pipelines and subsea systems from concept to commissioning. McDermott’s customers include national and major energy companies. Operating in more than 20 countries across the Atlantic, Middle East and Asia Pacific, the Company’s integrated resources include more than 15,000 employees and a diversified fleet of marine vessels, fabrication facilities and engineering offices. McDermott has served the energy industry since 1923.

To learn more, please visit McDermott’s website on the internet at www.mcdermott.com

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