[aruanan]

Ancient earthquake faults provide leaks from one rock strata to another, but it's still nothing that can be accurately described as a stream.

Even in the absence of ancient earthquake faults, the migration of oil can accurately be described as a stream. Anything that streams from one place to another is a stream just as anything that flows is a fluid. The rate at which the phenomenon occurs in one versus another instance doesn't alter the fundamental nature the phenomenon, just the perception of it.

[Dog Gone]

Yes, anything that flows can technically be called a stream. Even if it flows a few inches every million years.

Nobody that I know of would describe an oil-charged rock as a pond.