• CERAWEEK
  • March 10 - 14, 2025

CJ Warner

Renewable Energy Group

President & Chief Executive Officer

For more than 40 years, Cynthia (CJ) Warner has been a leader in the traditional and renewable energy sectors, holding key roles in technology development, operations, business development, strategy, environment, health and safety. Currently, Ms. Warner serves as President & CEO for Renewable Energy Group, Inc. (REG) and as a member of REG’s Board of Directors. Prior to REG, Ms. Warner served as Executive Vice President, Operations for Andeavor (formerly Tesoro). She oversaw Andeavor’s Refining; Logistics; and Environment, Health, Safety & Security groups, overseeing strategic growth initiatives and providing leadership that promoted safe, reliable execution and drove operating efficiency and effectiveness. Prior to Tesoro, CJ served as Chairman and CEO of Sapphire Energy where she oversaw development of technology to produce oil from algae, successfully building and placing into operation one of the largest algae farms in the world. Ms. Warner was named a Fortune 2020 Businessperson of the Year. She also serves as a Board Member for the Columbia University Center on Global Energy Policy (CGEP) and is a member of the Board of Directors for Sempra Energy. She is a member of the National Petroleum Council and the Board of Visitors of the Vanderbilt University School of Engineering.

Sessions With CJ Warner

Tuesday, 10 March

  • 10:30am - 11:20am (CST) / -

    What are Likely Feedstocks for Advanced Biofuels?

    Downstream, Midstream & Chemicals

    Advanced biofuels are beginning to make in-roads into the transportation fuels market due to decarbonization policies and technology. Renewable diesel and jet fuel are the leading fuels that rely on low-carbon bio-oils—such as used cooking oil, fats, and tallow—and existing technologies. However, it is unlikely that these fuels and feedstocks alone can meet the targets of existing and emerging policies. Other feedstocks will be needed. What are likely feedstocks for advanced biofuels? What is the status of processing technologies to produce large amounts of biofuels from these feedstocks? What enabling technologies are needed? Can advanced biofuels and feedstocks compete with the life cycle and economics of non-liquid transport fuels?