Tsakos Energy Navigation CEO Dr. Nikos Tsakos says geopolitical turmoil and the rapid expansion of shadow tanker trading have created a severe shortage of high-quality vessels, pushing charter rates to levels rarely seen in the industry. Speaking during a recent investor presentation, Tsakos said nearly a third of the global tanker fleet has been sidelined by sanctions, leaving oil majors scrambling for compliant tonnage and reshaping global energy trade routes.