A European Union (EU) plan to sanction Russian oil would prevent a wide range of European maritime players from helping carry the commodity even to third countries, where buying it will remain legal.

According to a draft leaked by Bloomberg, the EU aims to prohibit “any vessel registered under the flag of a member state or owned, chartered, operated or otherwise controlled by a national of a member state or any legal person … of a member state” from transporting Russian crude or petroleum products to third countries.