Mr. Leach was appointed Advisor to the Chief Executive Officer for ConocoPhillips in May 2022. He previously served as executive vice president, Lower 48. Prior to joining ConocoPhillips, Mr. Leach served as chairman and chief executive officer of Concho Resources Inc. from its formation in February 2006, until its acquisition by ConocoPhillips in January 2021. During his time at Concho, Mr. Leach also served as president from July 2009 until May 2017.

Mr. Leach previously served as an appointed member of the Texas A&M University System Board of Regents from 2017 to 2023 and served as chairman from 2021 to 2023.