Tsakos Energy Navigation Ltd is a provider of international seaborne crude oil and petroleum product transportation services. The Company operates through maritime transportation of liquid energy related products segment. It operates a fleet of approximately 57 modern crude oil and petroleum product tankers that provide marine transportation services for national and other independent oil companies and refiners under long, medium and short-term charters. Its fleet also includes a liquefied natural gas (LNG) carrier and over two shuttle suezmax tankers with dynamic positioning technology (DP2). This fleet diversity includes a range of sister ships. The Company’s fleet consists of 65 double-hull vessels totaling 7.2 million deadweight tonnage. Its diversified fleet, which includes VLCC, suezmax, aframax, panamax, handysize, handymax tankers, LNG carrier and DP2 shuttle tankers, allows it to serve its customers' international petroleum product and crude oil transportation needs.