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 20, 2018, it operated a fleet of 64 double-hull vessels, including 59 conventional tankers, 2 liquefied natural gas carriers, and 3 suezmax DP2 shuttle tankers. The company was formerly known as MIF Limited and changed its name to Tsakos Energy Navigation Limited in July 2001. Tsakos Energy Navigation Limited was founded in 1993 and is based in Athens, Greece.