Only one very tiny oil field, Eugene Island block 330, has shown any evidence of refilling.

Production from Eugene Island had achieved 20,000 barrels per day (3,200 m³/d) by 1989; by 1992 it had slipped to 15,000 bbl/d (2,400 m³/d), but recovered to reach a peak of 30,000 bbl/d (4,800 m³/d) in 1996. Production from the reservoir has dropped steadily since then.

The source of additional oil was analyzed as migrating through faults from deeper and older formations below of probable Jurassic and Early Cretaceous age. The oil contains biomarkers closely related to other very old oils and was long trapped in deep formations. Eugene Island block 330 oil field

There have been claims of other oil fields refilling but the evidence of such is skimpy at best, just as are all claims of abiogenic oil. Forget about refilling oil reservoirs. Forget about abiogenic oil. It is a waste of time even to engage the fringe element with discussion on these subjects.

Ron Patterson

i have also heard the abioticians claim that the grant canyon field in nevada and labarge in wyoming are abiotic. i.e. the amount of oil that has been produced exceeds the amount that can be accounted for as originally in place. and any field that produces from granite(offshore vietnam for example). i believe that there has been a claim that the tar sands are proof because a source for that much "oil" is not explained.

but as far as i can tell the "proof" amounts to an inability to explain the unexplained.