Mike Sanner – Mr. Sanner is a licensed certified public accountant and began his career at the accounting firm of Arthur Andersen LLP after graduating from the University of Pennsylvania with his MBA. Mr. Sanner has over 37 years of experience providing assurance services to both public and private companies, primarily in the energy sector. Prior to his retirement in June 2013, Mr. Sanner served as Assurance Partner at Ernst & Young LLP. Mr. Sanner currently serves as a member of the Oklahoma Accountancy Board and has been involved in numerous civic, professional and charitable organizations. Mr. Sanner has also been a member of the board of directors of OGE Energy Corp. and its wholly-owned subsidiary, Oklahoma Gas & Electric Company, since September 2017, serving on the audit committee and the nominating and corporate governance committee.