in game, some provinces generate oil:
USA, Alaska, Venezuela, Brazil, Germany (little), Hungary (little), Romania, Ukreine (little), Archangelsk, Ural, Caucasus, Soviet far east, Novosibirsk, Sinkiang, Formosa, Manchuria (little), Papua, Borneo, East indies, French indochina, Burma, India, Persia, Iraq, Transjordan&Syrie, Egypt (little), Libya (little), Algeria (little) and South africa…
Dou you talk about oil producers or oil refinery?
If you talk about oil producer there’s some mistake on your list.
Germany,Ukraine, Achangelsk, Singkiang, Formose, Novosibirsk,Manchuria,papua,french indochina,syria,algeria, Lybia and south africa wasn’t oil producer during WW II.
Oil was discover after WW II on most of those territory.