It has been called Russia’s “ghost”, “shadow”, or “dark” fleet. Nearly 500 ships, many of them old tankers with murky ownership and obscure insurers, could be playing an integral role in moving Russian crude to China and other ports in Asia, because of a G7 price cap meant to keep foreign-currency...
https://www.hellenicshippingnews.com/the-dark-fleet-of-tankers-shipping-russian-oil-in-the-shadows/