Dave Geddes is an economics and planning consultant for the refining and petrochemical industry. His previous experience includes 20 years at Bechtel Corporation. He has worked on feasibility studies and economic evaluations of oil refineries and petrochemical plants in the United States, Asia, the Middle East, and South America. While at Bechtel he also managed the group that developed, marketed, and supported the PIMS linear programming system that is now widely used for refinery and petrochemical economic studies and other planning applications. Mr. Geddes received a B.S. in Petroleum Refining from the Colorado School of Mines, and an M.S. in Chemical Engineering from the University of Colorado.