Triglycerides (TAGs) from current oilseed crops and waste oils cannot come close to meeting U.S. diesel demand (60+ billion gal/yr). The entire U.S. soybean crop could provide approximately 2.5 billion gallons per year. Estimated world-wide production of biodiesel would only yield 13 billion gallons per year. This much agricultural productivity cannot possibly be diverted from the food supply. TAGs also represent an attractive feedstock for biopetrochemicals meaning less would be available for transportation fuel.