Here are three stocks with buy rank and strong income characteristics for investors to consider today, May 30: Ecopetrol S.A. (EC) : This integrated energy company has witnessed the Zacks Consensus Estimate for its current year earnings increasing 9% the last 60 days. This Zacks Rank #1 company has a dividend yield of 17.7%, compared with the industry average of 5.9%. First BanCorp. (FBP) : This bank holding company for FirstBank Puerto Rico has witnessed the Zacks Consensus Estimate for its current year ea ...