As for Petrol, I notice a number of provinces that produce it in ricky but not in Hoi, either the province should be moded to produce it now, or given as offmap oil.
Nations capitols should produce a certain minimum, the issue here is balance in Vanilla Hoi theres many neutral nations who produce oil and everyone can get it, not in our game and I see it as being all too likely the current petrol oligarchs hoarding it.
So convert all ricky oil to hoi non oils provinces to offmap ic.
and convert capitols as giving some oil.
Instead of changing the values of Baku & co semi randomly lets give all the various nations who did at some point produce oil and give them a suitable production value so that we can have a bit more oil in the game and reduce the likely hold of peoples militaries being paralyzed.
The important question to ask is how much ingame oil corresponds to how much barrels produced in real life? Germany if I recall could extract 6-9 million barrels from its own wells.
ALSO there's the matter of artificial fuel refineries that the Germans produced to solve their oil issues. We could also convert fully staffed fuel factories in ricky as an artificial producer of oil etc.
Basicially the goal should be that those whove gained natural rich sources of oil shouldnt be punished or nerfed, but nations who don't have their own sources shouldnt be punished either especially since producing 0 oil can be catastrophically bad and such considerations should be made to allow them to produce "enough" to maintain some kind of defencive mechanized force, airforce, and navy.