Tsakos Energy Navigation Limited (TNP) is a leading provider of seaborne transportation services to the crude oil and petroleum products industry. We believe the market is not giving the preferred shares enough credit for rising shipping rates and a recent charter extension for an LNG carrier. In this article, we analyze its business model, dividend potential, growth prospects and finally conclude with an explanation on why we ranked it #6 on our recent list of Top 10 Big Safe Energy Sector Dividends. If you are an income-focused investor, it’s worth considering.