Noble Corporation announced the retirement of Chairman, President, and CEO David W. Williams, and the election by the board of directors of Julie J. Robertson to succeed him in such roles. Williams will remain with the company through February 2018, serving in an advisory capacity. Robertson has served as executive vice president since 2006. In this role, she has had direct oversight for human resources, procurement and supply chain, learning and development, health, safety environmental functions, and information technology. From July 2001, she served as senior vice president-administration and has served continuously as corporate secretary since December 1993. In September 2017, she was named to the board of directors. During the 10 years of Williams’ leadership he guided the company through periods of extreme volatility. He also initiated and executed the substantial newbuild program for Noble's high-specification drilling companies.