The United States believes that Ukraine’s strikes on Russian oil refineries will lead to higher world energy prices, according to The Washington Post. The United States is confident that if Ukraine does not refrain from attacking the refineries, it will provoke Russia to increase shelling of the country. The agency also notes that attacks on Russian refineries deepen tensions in relations between Ukraine and America. This is because, according to media reports, the US call not to target Russian refineries, which was made during the Munich Security Conference in February, angered President Volo…