Addax Petroleum (fka AXC)

[Krombacher]

You said:

"a lack of a migration path for oil. There was no indication oil migrated downslope at all"

Migrating oil, eh?

That sounds like the definition of a river. When liquid migrates or meanders in large quantities that's a river. In smaller quantities that's a stream. A big black blob might constitute a lake of oil.

Large Bodies of Liquid 101.

Krombacher