Presently, Cynthia J. Warner holds the position of President, Chief Executive Officer & Director at Renewable Energy Group, Inc. Ms. Warner is also on the board of Sempra Energy and Member-Visitors Board at Vanderbilt University, Member of The National Petroleum Council, Executive Vice President-Operations for Tesoro Cos., Inc. and Member of Center on Global Energy Policy.

Cynthia J. Warner previously occupied the position of Chairman & Chief Executive Officer of Sapphire Energy, Inc., Group Vice President-Global Refining at BP Plc and Principal at BP Products North America, Inc. (a subsidiary of BP Plc), Executive Vice President-Operations of Andeavor LLC and Principal at UOP LLC.

Ms. Warner received an undergraduate degree from Vanderbilt University and an MBA from Illinois Institute of Technology.