Carbon-based fuel is any fuel whose energy derives principally from the oxidation or burning of carbon. Carbon-based fuels are of two main kinds, biofuels  and fossil fuels. Whereas biofuels are derived from recent-growth organic matter and are typically harvested, as with logging of forests and cutting of corn, fossil fuels are of prehistoric origin and are extracted from the ground, the principal fossil fuels being oil, coal, and natural gas.