EOG Resources Inc. said William R. “Bill” Thomas has elected to retire from the board of directors and that CEO Ezra Y. Yacob has been appointed to the role of chairman of the board, effective Oct. 4.

“On behalf of EOG employees and the board, I would like to thank Bill for his continued service to the company as a board member this past year,” Yacob commented in a company release.

Yacob has served as CEO of EOG Resources since October 2021. He was appointed to the role following Thomas’ retirement.

Previously, Yacob had served as president, executive vice president of exploration, vice president and general manager of EOG’s Midland, Texas office and in various other geoscience and leadership positions since joining EOG in August 2005.

“Ezra has demonstrated strategic vision, financial acumen, and sound operational leadership during his service on EOG’s board of directors this past year. We are pleased Ezra will assume the role of chairman of the board following Bill’s retirement,” James C. Day, presiding director of the board, said of Yacob’s appointment.

Thomas has served as EOG’s non-executive chairman of the board since October of last year. Following several technical and leadership roles in his more than 43-year career with EOG, Thomas served as chairman of the board and CEO of the company from 2014 to 2021.

“Bill has made countless contributions to EOG throughout his distinguished career lasting more than 40 years with the company,” Yacob added in his statement. “He is an exceptional serving-leader and EOG’s best champion of our unique culture. The EOG family offers him and his wife Jane our best wishes as he continues his retirement.”