I do not know, but it is possible. It is not possible that the earth is regenerating oil at the same rate from those fields currently producing into those same fields, though. That would be a eternally perpetual energy supply.
At any given point in time, there are absolutely huge areas underground and under the sea that could be generating new oil, but are as yet untapped.
BTW, what difference does this make?
It is not possible. There isn’t room in the earth if that process has been ongoing at current production rates.