There's some very compelling data pointing to petroleum/oil being abiotic, and consequently a geological process of formation rather than a biological one.

There are some very smart scientists that promote the abiotic theory of oil, but these people (as you'd expect) are typically censored, shouted down, etc.

I am not a geologist nor am I a chemist, so I won't pretend to know the truth here. But the abiotic theory of oil is a compelling one and it certainly fits in with information like the above shared by the OP.

EDIT: Good to see other pedes on here familiar with the theory of abiotic oil.