Mr. Robertson has served as a director of Diamondback since September 2024. Mr. Robertson previously served as Chief Executive Officer of Endeavor Energy Resources, L.P. until its merger with Diamondback completed on September 10, 2024. Mr. Robertson joined Endeavor as Chief Operating Officer and Senior Vice President of Development in January 2017 and was appointed Chief Executive Officer in September 2020. He previously served as Vice President of US Unconventional Resources at Marathon Oil Company where he provided oversight of the North America Unconventional Business Units and Technology Application, Land, Supply Chain and Exploration efforts. Mr. Robertson was a part of Marathon from 2011 to 2016. Prior to his role at Marathon, Mr. Robertson served as Vice President of Engineering and Exploration at Pioneer Natural Resources. Mr. Robertson earned a Bachelor of Science in Petroleum Engineering from Texas A&M University in 1998 and a Master of Business Administration from Southern Methodist University in 2010. Mr. Robertson currently serves on the boards of directors for the Permian Basin Petroleum Association and on Texas A&M University's Department of Petroleum Engineering Industry Advisory Board. We believe that Mr. Robertson's strong financial and executive management experience, extensive industry knowledge, and familiarity with the legacy Endeavor assets and employees qualify him for service on our board of directors.