TSAKOS ENERGY NAVIGATION LIMITED Common Shares ($1.00 par value per share) Series B Cumulative Redeemable Perpetual Preferred Shares ($1.00 par value per share) Series C Cumulative Redeemable Perpetual Preferred Shares ($1.00 par value per share)...At-the-Market Equity Offering Sales Agreement • January 31st, 2017 • Tsakos Energy Navigation LTD • Deep sea foreign transportation of freight • New York
