Brexit fears UK oil refining21 Aug 2019 01:04
https://www.bbc.co.uk/news/business-49405270
However, under World Trade Organization (WTO) rules, a zero tariff rate must apply to petrol imports from all countries, opening up the UK to Russian fuel imports.
At the same time, the EU has said it will apply a tariff, under WTO rules, of 4.7% to UK exports, making the trade with, for example, Ireland "uneconomical", according to insiders.
What a mess we are in.