As I note elsewhere, the dead-dinosaur theory of oil was actually hotly contested early on, many thought it was bunk, but it was pushed as THE TRUTH by people like Rockefeller to make it seem scarce and keep the price high.
As for deep - see links I posted in a reply elsewhere here. Very informative reading. One of them is a chapter from a petroleum engr textbook apparently.
As I note elsewhere, the dead-dinosaur theory of oil was actually hotly contested early on, many thought it was bunk, but it was pushed as THE TRUTH by people like Rockefeller to make it seem scarce and keep the price high.
As for deep - see links I posted in a reply elsewhere here. Very informative reading. One of them is a chapter from a petroleum engr textbook apparently.