Willbros Names Michael J. Fournier as CEO

Willbros Group, Inc.

today announced that its Board of Directors has elected S. Miller Williams, 64, Chairman of the Board. Michael J. Fournier, 52, currently President and Chief Operating Officer ("COO"), in addition to his current duties, has also been appointed Chief Executive Officer ("CEO"). Mr. Fournier has also been appointed to the Board of Directors and will serve on the Finance and Executive Committees. John T. McNabb, II, current Chairman and CEO will return to his role on the Board of Directors and on the Finance and Executive Committees and complete his term as director, but chose to not stand for re-election at the Company's next Annual Meeting to be held in June 2016. These Director and management changes will be effective December 1, 2015. Miller Williams has served on the Willbros board since May 2004 and was appointed Lead Independent Director in August 2014. From 1978 until 2002 Mr. Williams held numerous executive positions with The Williams Companies including Senior Vice President Corporate Development and General Manager International of Williams Communications. Mike Fournier joined Willbros in 2011 and served as President of the Canada segment before being named COO in July