Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The United States produces mainly biodiesel and ethanol fuel, which uses corn as the main feedstock. Since 2005 the US overtook Brazil as the world's largest ethanol producer. In 2006 the US produced 4.855 billion US gallons of ethanol. The United States, together with Brazil accounted for 70 percent of all ethanol production, with total world production of 13.5 billion US gallons. When accounting just for fuel ethanol production in 2007, the U.S. and Brazil are responsible for 88% of the 13.1 billion US gallons total world production. Biodiesel is commercially available in most oilseed-producing states. As of 2005, it was somewhat more expensive than fossil diesel, though it is still commonly produced in relatively small quantities.

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