Read “The Hot Deep Biosphere” by the late Dr Thomas Gold. It has some interesting arguments for the abiotic origin of oil\fossil fuels. I don’t buy into all of his arguments but they’re food for thought.
https://www.amazon.com/Deep-Hot-Biosphere-Fossil-Fuels/dp/0387952535/ref=sr_1_1?crid=U5N5M7O4TFI8&keywords=the+deep+hot+biosphere+the+myth+of+fossil+fuels&qid=1657216200&sprefix=Hot+deep+biosphere%2Caps%2C102&sr=8-1
Thank you!