I don't think that Germany had no choice, because Germany scaled synthetic oil production a lot during WWII: "Being petroleum-poor but coal-rich, Germany used

I don't think that Germany had no choice, because Germany scaled synthetic oil production a lot during WWII: "Being petroleum-poor but coal-rich, Germany used the process during World War II to produce ersatz (replacement) fuels. FT production accounted for an estimated 9% of German war production of fuels and 25% of the automobile fuel." https://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_process#History https://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_proces...