Why is it that many years ago all petrol was called motor spirit and labelled as serived from mineral oil on the cans, and now we are all told it is fossil fuel derived from rotting plants? How is it then that no fossil has ever been found at the depths they have been drilling an finding Oil? It seems to me that mineral oil is what we have and that it just maybe a renewable resource through the putrification of the chambers of deep sea aquifers, the result of filtering sea water through mineral sand way down there. Feasible and logical. Someone apart from oil companies or their reps please explain scientifically why this can or cannot be true.