I've heard Corsi on Coast To Coast AM before, but I'd never associated him with the Swift Vets before. His explanations of this stuff sounds reasonable, and the evidence is there, as you said... Tapped out fields being 'recharged' somehow. Corsi doesn't argue that we shouldn't look at alternatives to oil for our energy needs, as there are obvious problems with burning too much oil, pollution concerns being the most obvious. Rather, he argues that we shouldn't be panicking because of fear-mongering related to "peak oil" theories.
If oil is, in fact a renewable abiotic resource, then much of the fear-mondering related to "peak oil" is nothing but yet another scam that is hurting our economy. Of course, since we don't fully understand the processes or time scales involved in abiotic oil generation, we will have to be careful not to extract more than the earth can produce and renew. We'll find a happy medium somewhere, between oil and alternative energy production that will allow things to continue longer than many people think. Cheap energy is a good thing IMO.