If the moon was made of cheap green cheese, then it could have been dripping down on Earth for ages, explaining why we don't have oil wells at the North and South pole, and the cheese only melts over the equator, where it's hot.
I have no doubt at all that SOME oil is abiotic...simple chemical equilibrium means that under certain conditions, minerals have to form equilibrium compounds, and some simple hydrocarbons are formed.
However, that doesn't mean that ALL, a significant quantity, or a minor quantity is abiotic...and certainly doesn't justify unlimited digging and burning today...
As to the assertion that a petri under a mouse proves something...LOL...we have coal seams spanning hundreds of square kilometers, that were very clearly of vegetable origin...and peat through lignite through bituminous is pretty easily demonstrated (bar the odd bowling ball, silver ring, and clay cup that can't be found anywhere).
But as one highly paid engineer once told me regarding fossil fuels..."there is ample sufficiency to get us to the rapture".