Tsakos Energy Navigation Limited provides seaborne crude oil and petroleum product transportation services worldwide. The company offers marine transportation services for national, major, and other independent oil companies and refiners under long, medium, and short-term charters. As of April 21, 2022, it operated a fleet of 66 double-hull vessels, comprising of 60 conventional tankers, three LNG carriers, and three suezmax DP2 shuttle tankers.