I wonder if tha pertains to oil too?
It has always been my belief, that the heavy rains and flooding, loosened all of the trees and plant life from the soil, such that, when the waters ‘receded’, they collected in the lowest parts of the earth. The subsequent pressure is what produced Petroleum. It is an established fact, that plant material, under pressure, result in OIL !
You don’t know how right you are,
As I type this, freshly produced crude oil is oozing out at the bottom of the deepest portions of the oceans. So oil is being produced daily from the vast amount of pressure at the depths of the sea.