(Royal Dutch) Shell is based in the Netherlands. I doubt they'd "blacklist" themselves. The Netherlands is part of the European Union, whose members can trade

(Royal Dutch) Shell is based in the Netherlands. I doubt they'd "blacklist" themselves. The Netherlands is part of the European Union, whose members can trade freely between each other. Trying to cut off oil from the Netherlands would also require cutting it off to France, Germany, Spain, etc. Who would enforce such a silly action in any case? Presumably the government and army of the Netherlands wouldn't want to cut itself off; in which case, what would prevent anyone with lorries, boats or planes from bringing in "oil or oil based products" (at a hefty markup)?