Several E.U. member states made it plain that they will veto any E.U. proposal to ban Russian oil (or gas) imports. Removal of oil ban ‘fear factor’ may significantly reduce risk premium in crude oil prices. Lack of clear leadership from Germany makes an effective oil embargo a long shot.
https://oilprice.com/Energy/Oil-Prices/Failure-To-Implement-Russian-Oil-Ban-Could-Send-Oil-Crashing-To-65.html