I have 13 years of experience, and specialize in the field of oil and gas competition, including exploration, transportation, refining and marketing, with specific knowledge in the areas of antitrust, mergers, liability and damages matters, and econometric analysis, including the use of statistical methods for analyzing complex economic data. I have published on such topics as petroleum pricing, both upstream and downstream, and gas concentration, price volatility, market definition and market power. I am among the most widely cited economists on oil pricing and competition and have spoken on the topic at international conferences and universities on five continents. I have advised oil and gas industry clients in antitrust and merger matters on three continents, and have taught antitrust economics and regulation at U.S. and Canadian universities over the past 15 years.