Authors:

There are geologists who can pick up a rock and say, 'Yes, there's oil under there.' A geologist who has been studying those kinds of rocks for 10 or 20 years is able to make that pronouncement.

There are geologists who can pick up a rock and say, 'Yes, there's oil under there.' A geologist who has been studying those kinds of rocks for 10 or 20 years is able to make that pronouncement.