William M. Buergler – Mr. Buergler is a license certified public accountant and has over two decades of accounting and tax experience. He is currently a Partner of MAP Energy, one of the largest privately owned oil and gas mineral companies in the United States. From August 2017 to June 2021, Mr. Buergler served as the Senior Vice President and Chief Accounting Officer of Chesapeake Energy Corporation, or Chesapeake, where he began working in July 2014 as Vice President − Tax. Before joining Chesapeake, he worked for two public accounting firms: Ernst & Young LLP, where he served as a Partner from 2009 to 2014 and as a Senior Manager from 2002 to 2008; and Arthur Andersen LLP, where he served from 1996 to 2002. Mr. Buergler currently sits on the board of directors of the Regional Food Bank of Oklahoma, or RFBO, and previously served as Chairman and Treasurer of the RFBO Foundation Board. Mr. Buergler holds B.S. and M.S. degrees in Accounting from Oklahoma State University. Mr. Buergler’s tax and accounting acumen and his leadership experience, both in the workplace and the community, qualify him to serve on our board of directors.