Beyond all that, Petrobras pays an anemic dividend that is paltry in comparison to rivals ranging from Exxon Mobil (NYSE: XOM) to Royal Dutch Shell (NYSE: RDS-A) to Total (NYSE:TOT). In other words, investors are not compensated to deal with the seemingly endless frustrations Petrobras has become infamous for delivering. If those are not good enough reasons for investors to shy away from Petrobras, consider this: Noted short seller Jim Chanos recently called Petrobras one of his favorite shorts.