多切斯特矿业合伙 DMLP

Bradley J. Ehrman, age 49, has served as Chief Executive Officer of Dorchester Minerals Management GP LLC since October 2025 and of Dorchester Minerals, L.P. since October 2022. He has also served as Chief Operating Officer of Dorchester Minerals Management GP LLC since May 2015. He previously served as the Chief Operating Officer of Dorchester Minerals, L.P. from May 2015 to October 2022 and the Engineering Manager of Dorchester Minerals Operating LP from 2004 to 2011, Vice President of Operations from 2011 to May 2015 and Chief Operating Officer from May 2015 through the present time. He received a Bachelor of Science degree in Petroleum Engineering from the University of Alberta and received his MBA from the Jones Graduate School of Management at Rice University.

F. Damon Box, age 48, has served as a manager of Dorchester Minerals Management GP LLC since October 2024. Mr. Box has over 25 years of experience in corporate finance, mergers & acquisitions, and investing in the energy sector. He has served as a Partner of Carrollton Mineral Partners, LP since 2020. Since 2022, he has also served as Chief Financial Officer to various early-stage companies in the renewable biomass sector. Mr. Box previously served as a Managing Director in the energy investment banking group of Piper Sandler Companies (formerly Simmons & Company International) from 2006 to 2009 and from 2011 to 2020. From 2010 to 2011, he served as Director of Mergers & Acquisitions at Halliburton Company. Mr. Box received a Bachelor of Business Administration with Honors from the University of Texas at Austin.

Allen D. Lassiter, age 77, has served as a manager and an Advisory Committee Member of Dorchester Minerals Management GP LLC since November 2017. He served as Vice Chairman - Investment Banking from 2016 to 2017 and as Managing Director and Energy Group Head from 1994 to 2016 at Raymond James and Associates, Inc., an investment banking firm. Mr. Lassiter previously served as Managing Director and Group Head of Southwest Investment Banking for Kemper Securities, Inc. from 1992 to 1994 and in various positions, including Managing Director and Energy Investment Banking Group Co-Head at Smith Barney, Inc. from 1973 to 1992. Mr. Lassiter received a Bachelor of Arts degree from the University of North Carolina and a Master of Business Administration degree from the Wharton School of Finance at the University of Pennsylvania.

Sarah N. Wariner, age 45, currently serves as the Deputy General Counsel and Senior Vice President, Global Litigation at the Jacobs Engineering Group. Prior to her current role, Ms. Wariner was employed at the Jacobs Engineering Group as Deputy General Counsel and Vice President, Global Litigation from 2022 until her promotion in 2025. Before joining Jacobs Engineering Group, Ms. Wariner served as Assistant General Counsel and Vice President at JP Morgan Chase & Co. from 2021 to 2022. Ms. Wariner was a Member at the law firm Clark Hill PLC from 2018-2021 and practiced at its predecessor firm between 2012 to 2018. Ms. Wariner received a Bachelor of Business Administration from Baylor University and a Juris Doctorate from the Wake Forest University School of Law.

H.C. Allen, Jr., age 87, has served as a manager of Dorchester Minerals Management GP LLC since 2001 and as Chief Financial Officer of Dorchester Minerals Operating GP LLC and Dorchester Minerals, L.P. from 2001 to May 2015. He co-founded SASI Minerals Company, Republic Royalty Company, Spinnaker Royalty Company, L.P. and CERES Resource Partners, LP with Mr. McManemin in 1988, 1993, 1996 and 1998, respectively. He received his Bachelor of Business Administration degree from the University of Texas and his Master of Business Administration degree from the University of North Texas.

Robert C. Vaughn, age 70, has served as the Chairman of the Board of Managers of Dorchester Minerals Management GP LLC since April 2026. Previously, he served as the Interim Chairman of the Board since October 2025 and has been a Manager since 2001. Mr. Vaughn has served in various capacities with Vaughn Petroleum (DMLP), LLC and affiliated entities since 1979, including as Chairman, President and Chief Executive Officer. He co-founded Republic Royalty Company in 1993 and Dorchester Minerals, L.P. in 2003. He received a Bachelor of Business Administration from the University of Texas at Austin. He currently serves on the Board of Trustees of the Culver Educational Foundation, and the Board of Visitors of the McDonald Observatory and Department of Astronomy of the University of Texas at Austin. Mr. Vaughn also is a co-founder and serves on the Advisory Board of High River Resources, serves on the Board of Directors of the Perot Museum of Nature and Science, and is a member of the Texas Transportation Commission.

Lesley R. Carver, age 57, has been a manager of Dorchester Minerals Management GP LLC since January 2024. She received a Bachelor of Science degree in Electrical Engineering from Texas Tech University. She currently serves as the Senior Director of Finance and Systems of Cobalt Management Services and provides financial services to the Board of Directors of Ally's Wish, a non-profit organization. Prior to her role at Cobalt Management, Ms. Carver served on the Executive Board - Finance at Studio B, a non-profit organization and has held various engineering, operational and project management roles in the telecommunications industry.

Albert G. Nance, III, age 61, has served as a manager of Dorchester Minerals Management GP LLC since January 1, 2026. Mr. Nance earned a Bachelor of Arts from the University of Texas at Austin. He currently serves as a Partner and Venture Manager of Garg Oil, a Texas Joint Venture which is a privately owned mineral partnership with a focus on Texas and Oklahoma. Mr. Nance was previously an officer and principal of Tri-C Resources, an independent oil and gas exploration company where he served as Vice President of Land.

Martha P. Rochelle, age 73, has served as a manager of Dorchester Minerals Management GP LLC since 2013. Ms. Rochelle earned a Bachelor of Arts with High Honors from the University of Texas and a Juris Doctor from Southern Methodist University School of Law. Following law school, she clerked for a federal judge and then entered private practice. For a period of more than twenty years, her practice focused on corporate and tax-exempt finance. Ms. Rochelle continues to serve as an advisor to tax-exempt entities.

On February 11, 2026, the Partnership was notified by SAM Partners, Ltd. and Smith Allen Oil & Gas, LLP, members of DMMGP, the Board has been filled by the appointment of A. Troy Sturrock, age 55, as an independent manager, effective February 11, 2026. Mr. Sturrock has over 25 years of accounting and financial reporting experience, with a focus on the midstream energy sector for the past 20 years. He currently serves as the Group Senior Vice President, Controller and Principal Accounting Officer of Energy Transfer LP, a publicly-traded master limited partnership with assets in 44 states.