Mark S. Berg

Mark Berg currently serves as the Executive Vice President, Corporate Operations for Pioneer Natural Resources Company ("Pioneer"). Mr. Berg has over fourteen years of experience with Pioneer in various roles, including as Executive Vice President & General Counsel from April 2005 to January 2014, Executive Vice President, Corporate from January 2014 to August 2015, and as Executive Vice President, Corporate/Operations from August 2015 until assuming his current role. He began his career in 1983 with the law firm Vinson & Elkins LLP, and served as partner there from 1990 to 1997. Further, Mr. Berg served as Executive Vice President, General Counsel, and Secretary of American General Corporation, a Fortune 200 diversified financial services company, from 1997 to 2001. Following the sale of American General to American International Group, he was appointed Senior Vice President, General Counsel, and Secretary of Hanover Compressor Company, a NYSE listed natural gas compression and processing company. Mr. Berg holds a Juris Doctor, with honors, from the University of Texas School of Law, and graduated magna cum laude and Phi Beta Kappa with a Bachelor of Arts in Public Policy from Tulane University. He is a member of the State Bar of Texas and has served as Chairman of the Board of Dallas CASA. Mr. Berg has served as a member of the board of directors of HighPoint Resources Corporation since March 2018.