Chocolate and peanut butter go together; falling oil prices and Brazilian political uncertainty most certainly do not. Yet Petrobras stock may still be worth buying.

Yes, that sounds like a terrible idea, at least at first glance. Petróleo Brasileiro, or Petrobras (ticker: PBR), as it is more commonly known, is the Brazilian national oil company, and right now both factors are working against it.

Source: finance.yahoo.com