Tsakos Energy Navigation Ltd is a provider of international seaborne crude oil and petroleum product transportation services. The company operated a fleet of modern crude oil and petroleum product tankers, including vessels chartered-in that provide world-wide marine transportation services for national and other independent oil companies and refiners under long, medium and short-term charters. Its fleet also includes LNG carriers, including chartered-in vessel and suezmax shuttle tankers with dynamic positioning technology (DP2). It operates in one reportable segment, the world-wide maritime transportation of liquid energy-related products.