Biography

Mr. Barkmann has served as our Executive Vice President and Chief Engineer since April 2024 and as Executive Vice President and Chief Engineer of Diamondback since February 2024. Prior to his current positions with us and Diamondback, he served as Diamondback’s Senior Vice President of Reservoir Engineering since November 2021, as Vice President of Reservoir Engineering from February 2019 to November 2021 and as Reservoir Engineering Manager since joining us in November 2018.

Before joining Diamondback, Mr. Barkmann worked for Energen Resources Corporation from May 2006 to November 2018, serving in various capacities of increasing responsibility, most recently as Reservoir Engineering Manager, where he coordinated all aspects of Reservoir Engineering for Energen’s horizontal shale development program. Mr. Barkmann graduated from Louisiana State University with a Bachelor of Science in Petroleum.