ORIGINAL: Courtenay
Given the fact that one can not yet use friendly oil to reorganize (another bug)
I think you might be referring to a newer rule? At the rules point where MWiF was coded, an oil-dependent unit needed to trace to oil under control of it's Major Power to re-org.
I used to think I needed to transport oil to Australia to base a good amount of USN there, in case supply lines were cut. But that can't work with the rules MWiF is using, since a Major Power can only store it's oil in hexes it controls. So for the USN to use oil in Australia, it needs a valid supply path to a US controlled hex with oil in it. The USN would be in Supply to any Aussie city, but that is not the same as re-org at end-of-turn. Newer rules do change all of that consideration.
I'm not playing MWiF yet but it definitely has to be able to handle "pockets" disjunct from the rest of the world for Oil re-org, and production.