At https://dailygalaxy.com/2025/08/oil-doesnt-come-from-dinosaurs/ … apparently, oil was supposed to originate from dinosaurs. I didn’t know that. I thought it was derived from biomass in which dinosaurs lived. Whatever, it seems both ideas are wrong. We are told it is formed from the remains of tiny organisms that lived in the oceans. As plankton and algae died their bodies sank to the bottom of the sea, accumulating over millions of years. This reads like the same thing that is said to make up chalk geology – and why it is thought chalk regions were once on the bottom of the sea but have since been elevated.
At this point catastrophism creeps in as we are told that the plankton and algae were buried under layers of sediment and over time this generated intense heat and pressure to cook the organic material, transforming it into liquid hydrocarbons. All this over a uniformitarian gradual process. Another interpretation might be that a catastrophic event buried the organisms rapidly and the sediment was laid down quickly, the catastrophic event causing the heat and pressure. Once the oil formed it seeped upwards and was subsequently trapped by layers of rock. Oil became available as a resource by drilling operations. Oil and natural gas are therefore the products of biomass that once thrived in the oceans. One may also wonder if massive blooms of algae might have played a role.