Yeah, oil and coal in the quantities we found them were the result of a very specific set of physical and biological circumstances for the planet. It’s happened once. There’s a good chance it will never happen again in the remaining 900ish million years that the planet can support large, complex animals.
Particularly peat, which notably forms in peat bogs at a rate of 1mm per year, on the surface. If society collapses then a millennium later there'll be a metre-thick new layer of the stuff in some areas.
