2.7 billion X 5 = 13 billion gallons if you use all the soybean and I sure we can grow alot more.
The distribution tables for US soybeans for 2002/3 (preliminary) show that of 2.793 billion bushels of soybean consumption, 65% (1.615 billion bushels) went for crushing into soy meal and soy oil, 42% went to exports (1.045 billion bushels), and 5% went to seed, feed and residual (133 million bushels). For 2003/04, the USDA is forecasting a decline in crushings to 1.485 billion bushels (59%), a decline in exports to 890 million bushels (36%), and a slight reduction in seed/feed/residuals to 129 million bushels (5%).
These are impressive numbers that don't ever consider other crops they might use in the future.
This I hope is the real deal and we don't find out that they didn't count the cost of energy in the final figure or something like that.