Germany has a lot of coal, so no need to import. That's why it was German chemists who invented both the first chemical process to convert coal to usable liquid

Germany has a lot of coal, so no need to import. That's why it was German chemists who invented both the first chemical process to convert coal to usable liquid gasoline, and to convert CO gas (state of matter) to liquid gasoline: https://en.wikipedia.org/wiki/Bergius_process https://en.wikipedia.org/wiki/Bergius_process https://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_process https://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_proces... https://en.wikipedia.org/wiki/Coal_liquefaction https://en.wikipedia.org/wiki/Coal_liquefaction https://en.wikipedia.org/wiki/Synthetic_fuel#History https://en.wikipedia.org/wiki/Synthetic_fuel#History https://en.wikipedia.org/wiki/Oil_campaign_of_World_War_II https://en.wikipedia.org/wiki/Oil_campaign_of_World_War_II https://en.wikipedia.org/wiki/Gas_to_liquids https://en.wikipedia.org/wiki/Gas_to_liquids Also the reason why France occupied that region of Germany after World War 1, and then hilariously also again after World War 2: https://en.wikipedia.org/wiki/Saarland https://en.wikipedia.org/wiki/Saarland https://en.wikipedia.org/wiki/Territory_of_the_Saar_Basin https://en.wikipedia.org/wiki/Territory_of_the_Saar_Basin https://en.wikipedia.org/wiki/1935_Saar_status_referendum https://en.wikipedia.org/wiki/1935_Saar_status_referendum https://en.wikipedia.org/wiki/Saar_Protectorate https://en.wikipedia.org/wiki/Saar_Protectorate