[staytrue]

It's undeniable that coal is from dead plants and animals because you can see their fossilized remains in the coal. It is also undeniable that some natural gas is not of biological origin as there are some gas deposits that are rich in helium. It is also true, that if you mix water and coal and bake it, you can get oil. Crude oil might be a mix of both biological and inorganic sources.

[farmfriend]

There was an article on FR about a new theory on oil not too long ago. Maybe someone with better archives than I can dig it up. I will look through my stuff.

[UCANSEE2]

Crude oil might be a mix of both biological and inorganic sources

You are way ahead of those that say it can only be one or the other. They are close-minded.