From: Peter L. Peres >Very very very old oil is better known as coal, the best kind of it there >is. Not all coal is formed like that however. > >Peter > Coal can, I am informed, (although my scientific training is not in this area :-)), be made from common or garden bio-mass in a matter of months, given proper conditions. I am also informed that these conditions are "geologically reasonable". My informant, like Carl Sagan (:-)), might be wrong. regards Russell McMahon