Management Team

Mr. Van’t Hof has served as our Chief Executive Officer since February 2025. Prior to that position, he served as our President from March 2017 to February 2025 (prior to the Conversion, he served as President of the General Partner) and has served as a director since November 2023. Mr. Van’t Hoff joined Diamondback in July 2016 as Vice President - Strategy and Corporate Development and was promoted to Senior Vice President - Strategy and Corporate Development in February 2017. Prior to his position with Diamondback, Mr. Van't Hof served as Chief Executive Officer for Bison Drilling and Field Services from September 2012 to June 2016. From August 2011 to August 2012, Mr. Van't Hof was an analyst for Wexford Capital, LP responsible for developing operating models and business plans, including for our initial public offering, and before that worked for the Investment Banking - Financial Institutions Group of Citigroup Global Markets, Inc. from February 2010 to July 2011. Mr. Van't Hof was a professional tennis player from May 2008 to January 2010. Mr. Van't Hof received a Bachelor of Science in Accounting and Business Administration from the University of Southern California.

Mr. Gilfillian has served as our President since February 2025. Prior to holding this position, he served as Vice President of Viper from April 2024 to February 2025, as General Manager of Viper from February 2022 to February 2024 (prior to the Conversion, he served as General Manager of the General Partner) and prior to February 2022 he served in various roles in Diamondback’s finance group after joining Diamondback in September 2017. Mr. Gilfillian graduated from Trinity University with a Bachelor of Science in Business Administration and Economics.

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.

Ms. Dick has served as Chief Financial Officer, Executive Vice President and Assistant Secretary since February 2017 and served as Chief Financial Officer, Senior Vice President and Assistant Secretary from February 2014 to February 2017 (prior to the Conversion, she served as Chief Financial Officer, Executive Vice President and Assistant Secretary and Chief Financial Officer, Senior Vice President and Assistant Secretary, as applicable, of the General Partner). She has also served as Diamondback’s Executive Vice President and Chief Accounting Officer since March 2019. Ms. Dick served as Diamondback’s Executive Vice President and Chief Financial Officer from February 2017 to February 2019, as its Assistant Secretary since October 2012, as its Chief Financial Officer and Senior Vice President from November 2009 to February 2017 and as its Corporate Controller from November 2007 until November 2009.

Ms. Dick has served as Chief Financial Officer, Executive Vice President and Assistant Secretary of the general partner of Rattler since July 2018. From June 2006 to November 2007, Ms. Dick held a key management position as the Controller/Tax Director at Hiland Partners, a publicly traded midstream energy master limited partnership. Ms. Dick has over 25 years of accounting experience, including public company experience in both audit and tax areas. Since March 2021, Ms. Dick has served as a director of The Bank7 Corp. (Nasdaq: BSVN) and is a member of the Audit and Nominating and Corporate Governance Committees.

Ms. Dick received her Bachelor of Business Administration degree in Accounting from the University of Northern Colorado. She is a certified public accountant and a member of the American Institute of CPAs and the Council of Petroleum Accountants Societies.

Mr. Krueger has served as Vice President, General Counsel and Secretary since February 2026. Prior to his current position with us, he served as Vice President of Legal from September 2024 to February 2026. Before joining Viper, Mr. Krueger was a member of the Board of Managers and served as Vice President of Legal, General Counsel, and Secretary of Endeavor Energy Resources from February 2022 to September 2024 and as Associate General Counsel from December 2016 to February 2022. Prior to joining Endeavor, Mr. Krueger was a shareholder in the Midland, Texas based law firm of Lynch, Chappell & Alsup, P.C., serving as President and Managing Shareholder from 2014 to 2016. While at Lynch, Chappell & Alsup, Mr. Krueger’s primary areas of practice were mergers and acquisitions, corporate securities, and general corporate and transactional matters. Mr. Krueger holds a Bachelor of Arts degree in Political Science from Texas A&M University and a Juris Doctorate degree from Southern Methodist University Dedman School of Law.

Mr. Phillips has served as Vice President of Land since February 2025. Before joining Viper, Mr. Phillips served as Director of Business Development for Endeavor Energy Resources from February 2023 to September 2024 and as Land Manager - Minerals & Royalties from June 2021 to February 2023. Prior to joining Endeavor, Mr. Phillips worked as Director of Land for Guidon Energy from 2016 to 2021 and various land roles at Laredo Petroleum from 2013 to 2016. Mr. Phillips received a Bachelor of Arts degree in Political Science from Texas Tech University.

Mr. Stoltz has served as Vice President of Business Development since February 2025. Prior to his current position, he served as Director of Business Development from February 2024 to February 2025, and Manager of Business Development from 2018 to 2024. Before joining Viper, Mr. Stoltz worked independently in the oil and gas business, specifically in the Permian Basin, managing and purchasing minerals and royalties. Mr. Stoltz serves on the Board of Trustees for The Museum of The Southwest of Midland and the Board of Directors of the World Oilman’s Tennis Tournament. Mr. Stoltz received his Bachelor of Arts degree from the University of Mississippi.