Brian Steck has served as a member of Chesapeake Energy Corporation’s Board of Directors since February 2021. Mr. Steck is the Chairman of Bonanza Creek Energy, Inc. (NYSE: BCEI), where he has served on the Board of Directors since April 2017. Until August 2020, Mr. Steck served as a Partner at Mangrove Partners, where he had worked since 2011. Previously, Mr. Steck was Head of U.S. Equities at Tisbury Capital, and earlier in his career he spent ten years at UBS (NYSE: UBS) and its predecessors, where he was Global Co-Head of Equity Hedge Fund Coverage. Mr. Steck serves on the Board of Directors of California Resources Corporation (NYSE: CRC), and he previously served on the Board of Directors of Penn Virginia Corporation (NASDAQ: PVAC). Mr. Steck received a B.S., with the highest honors, from the University of Illinois at Urbana-Champaign.