Born in Mansfield, Ohio, Jack Williams graduated from Vanderbilt University with a Bachelor of Engineering degree. He joined Exxon in April 1987 as a drilling engineer in New Orleans, Louisiana.
After his initial assignment in the drilling organisation, Mr. Williams held various technical, supervisory, and planning positions, including two years in the U.S. upstream planning organisation. In 1997, Mr. Williams began a series of operations management assignments, including operations superintendent for the company's East Texas field areas and operations manager for the company’s Gulf Coast and offshore California properties.
Mr. Williams was then transferred to Anchorage, Alaska, to oversee the company’s North Slope and Cook Inlet interests. Following this assignment, he moved to Malaysia to serve as the deputy production manager for the company’s South China Sea operations.
In 2005, Mr. Williams moved to Dallas, Texas, where he served as an upstream advisor for Exxon Mobil Corporation. Two years later, Mr. Williams became the vice president of engineering for ExxonMobil Production Company. Following this work in production, he became the vice president responsible for Asia projects in ExxonMobil Development Company.
In 2010, Mr. Williams was named president of XTO Energy Inc. He held this position for three years before returning to the ExxonMobil Production Company as executive vice president.
In 2014, Mr. Williams was elected senior vice president of Exxon Mobil Corporation.
Mr. Williams is a member of the Society of Petroleum Engineers and a member of the Board of Visitors for the Vanderbilt School of Engineering.