Well the modern day cacuses nations were supposed to be puppets to the ottoman Empire like eastern Europe was going to germany, I also seem to recall most of the ussr oil came from Baku. Still the user was able to out produce Germany Evan when they lost Evan more taratory then Brest-litovsk thoe from what I have read that seems to have been more down to the efficiency of rather then the overal size of the ussr industreal field, from what I have read it seems the ussr had a GDP equal to Germany and in terms of production it still had 70% at the time of the battle of Stalingrad, but I don know how much that was native to the areas left to the ussr and how much was disasmbaled factorys moved to those areas after barbarossa.