Edgar Retires from Mustang's Pipeline Unit; Ellison Named Successor

Mustang Engineering, a subsidiary of international energy services company John Wood Group PLC ("Wood Group"), announces the retirement of David Edgar, Manager of Mustang's Pipeline Business Unit, effective December 31, 2007. John Ellison has been named to succeed David and, until then, is serving as manager of pipeline operations. Mustang's Pipeline Business Unit includes a staff of over 600 Mustangers located in eight cities in the U.S.

David has more than 40 years experience in the engineering of onshore and offshore pipelines. He has been with Mustang since 1992, when he joined Mustang to help form their Pipeline Business Unit. He has been an active participant and leader in many pipeline industry associations, including being president of the Houston Pipeliners Association.

John joined Mustang in 1998 and has 37 years of pipeline experience. He previously owned Gibbs Ellison, a pipeline services company. He has, most recently, been Manager of Pipeline Field Services, managing Mustang's inspection, survey, mapping, drafting, right-of-way and environmental permitting departments.

Steve Knowles, president of Mustang, said, "David has led the dramatic growth of Mustang's onshore pipeline business from a staff of less than 25 to over 600, working for virtually all of the major gas transmission companies in the United States. We will miss David, and are fortunate to have someone of the caliber of John to step into this role. John is a gifted leader and a great attribute to Mustang's people-oriented culture. He is respected by clients and Mustangers alike."