[expatpat]

It could mean exactly that. Right now conventional geologists prospect only in areas where there is sedimentary rock. If there is oil in the preCambrian basement, there are many new areas to prospect and (hopefully) find new oil.

[Dan Evans]

Yes, if it is true then the supply might be extended forever. But why would that affect the price? They still have to recover the costs of drilling and pumping it out. It isn't like gold, where people store it in a bank vault, it is a consumable commodity.

As an analogy, we know lumber is an infinite resource because it renews itself, yet it is still expensive because it costs to produce it.