Marcel Salikhov, President of the Institute for Energy and Finance, commented to the BBC on the refusal of the US and UK to buy Russian oil.
Restrictions on oil exports can hit the country's economy hard. However, this concerns mainly oil exports to Europe, and not to the US or the UK.
What will happen in case of more severe sanctions
The EU is not yet going to refuse to import Russian energy resources. This is clear: Europe is largely dependent on the supply of Russian oil, gas and coal.
It is the European market for various petroleum products that is the largest for Russia, Salikhov recalls.
"For Central or Eastern Europe, this is 60%, their refining there is focused on Russian oil - at the moment it is impossible. There will be problems with the availability of fuel. Naturally, no one can do this," Salikhov is sure.
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