Cynthia J. Warner
Cynthia Warner has been the executive vice president of operations for Tesoro Corporation since August of 2016. Prior to that, Ms. Warner served as Tesoro’s executive vice president of strategy and business development since October of 2014. Ms. Warner previously served as chairman and chief executive officer of Sapphire Energy, Inc. She joined Sapphire Energy after a 25 year career at BP and Amoco, Inc. where she gained significant knowledge of the global energy industry and served in numerous leadership roles, including overseeing BP’s global refining business and its health safety security environment. Ms. Warner received a bachelor of engineering in chemical engineering from Vanderbilt University and master of business administration from Illinois Institute of Technology.