@allison @meeper who exactly was trying to ensure minimal damage and minimal damage to what? I don't think this was anyone's goal to begin with.
On a related note, the entire world certainly wasn't fighting Germany. Germany's reach was limited to Europe and maybe parts of Middle East and Northern Africa.
The timeline also doesn't support your position, because in 1939 and 1940 Germany was happily trading with the USSR and had been procuring that oil just fine. The decision to attack the Soviets was only made in the late 1940, mostly due to the failed negotiations about how to partition the former British domain between the two (Stalin kinda wanted too much).