Russia is increasing the number of its own oil tankers that it is using to deliver its crude oil to buyers, Bloomberg said on Friday. The EU levied strict sanctions banning all Russian crude oil imports to EU nations transported by sea on December 5. On top of that, G7 buyers of Russian seaborne crude oil can only do so at a price below $60 per barrel if they want to use European ships or insurers. These sanctions have resulted in a drop in European tanker cargoes from key western oil ports in Russia, Bloomberg said. Since December 5, European…