Experience in the fuels and refining industry: 27 years. Frederick Potter received a bachelor's degree in economics and history in 1980 from State University of New York, U.S. He founded Information Resources, Inc. (IRI) in 1981. In addition to working closely with global industry and policy-makers, he has been called upon to provide information, analysis and insight on motor fuel and environmental issues by the White House, Congress, the U.S. Environmental Protection Agency and the U.S. Department of Energy. Potter is the lead author of the "Outlook & Impact for Renewables in North American Refining and Gasoline Markets 2006-2015," a combined study with Informa Economics and Opis. He oversees and directs all business units of Hart Energy Consulting.

Experience in the fuels and refining industry: 17 years. Born in Oslo, Norway, E. Kristine Klavers obtained a master's degree in chemical engineering at the University of Twente, Netherlands. During her master's study, she developed a new catalyst for methane coupling at the Tokyo Institute of Technology that was bought for patent application by Idemitsu Oil Co. Prior to joining Hart in 1996, she worked in the Oxygenate Business Management for ARCO Chemicals Inc. in the U.K. (1991-1994) and as a process engineer for Japanese Gasoline Co. (JGC) in Japan (1994-1996). She has been a guest lecturer at the Oxford Institute of Petroleum and Oxford University. Klavers serves as vice president for Hart Energy Publishing LP and directs Hart Energy Consulting.

Experience in the refining and environmental field: 7 years. Liisa Kiuru graduated from the Helsinki University of Technology in Finland in 2000 with a master's degree in technology from the Department of Civil and Environmental Engineering. Her Thesis, "Environmental Requirements of the Energy Sector in Hungary and Poland; Impacts of International Treaties and Accession to the EU" was written for Fortum in 1999. From 1999-2001, Kiuru worked at the Finnish Environment Institute in Finland as a project engineer. In April 2001, she moved to Singapore where she directed the efforts of the International Fuel Quality Center in the Asian region. In January 2007, Kiuru moved to Hart's headquarters in Houston, Texas, U.S., where she was promoted to Executive Director of the International Fuel Quality Center.

Dr. Michael Warren currently serves as the Executive Director of Global Strategic Research for Hart Energy. He oversees publication of the World Refining Fuels Service and manages several consulting projects around the world in the field of biofuels.
Prior to joining Hart Energy, Michael was the National Manager of the Latin American Research Group in Toyota Motor North America (TMA) for eleven years. In that position at TMA, Mr. Warren managed a team that conducted economic, political, automotive market & competitor intelligence research for Toyota in Latin American markets. Michael was also a participating member of the Demand Task Group of the National Petroleum Council’s (the “NPC”) Oil & Natural Gas Study. Served on the Board of Directors for Green Plains Renewable Energy (GPRE) for two years.

Experience in the fuels and refining industry: 35 years. Terrence S. Higgins holds a bachelor's degree in chemical engineering from the University of Notre Dame, U.S. He joined Hart after 14 years with the National Petrochemical & Refiners Association (NPRA) where he served as technical director, responsible for coordination and development of industry policies on refining and fuel quality. In addition, he held positions in private sector energy and environmental consulting (the U.S. Department of Energy, Amerada Hess and Texaco). In all of these capacities he has been involved in analysis of refining and crude oil and refined products markets. He has extensive experience in the application, design and implementation of refinery modeling systems. He is the primary contributor to Hart’s World Refining and Fuels Service and oversees crude and refined product, refining facility, product quality initiatives data and forecast systems supporting the service.

Experience in the fuels and refining industry: 10 years. Tammy Klein received her bachelor's degree in journalism from the University of Florida and her J.D. from the Georgetown University Law Center, both in the U.S. Formerly deputy director of the International Fuel Quality Center from 1998-2003, Klein practiced administrative and regulatory law with the firm Venable LLP prior to rejoining Hart in 2005. She is a member of the District of Columbia and Virginia bars. Klein directs International Fuel Quality Center efforts in North and South America; she is also the Executive Director of the Global Biofuels Center.