[conservatism_IS_compassion]

oil is formed in shales or other source rock, and has migrated upward until it reaches a trap or seal which it cannot penetrate

. . . which seems to indicate that oil/gas might be seeping up geologically--i.e. sloooly--all over the place. And we just don't notice that upmigration anywhere except where it gets stopped and a little of it gets trapped?

Not sure just why that

. . . does not imply in any way that the supply of oil is limitless.

It just seems to indicate that a "limitless" supply of (very hot, very high-pressure) hydrocarbons is very deep in the earth, probably mostly if not entirely inaccessible.

[Dog Gone]

But if that theory were correct, we'd find oil and gas just about everywhere, wouldn't we?