Petrobras (PBR -0.89%) certainly won't be on any top stock lists anytime soon. Between its incredibly high levels of debt, its overly ambitious production goals, and the ongoing delays on its offshore field development, the company hasn't exactly been instilling investor confidence. Based on what has happened in the past quarter, it looks as though the company's earnings report will be more of the same when it reports later this week.

One challenge that Petrobras will continually face over the next several years is the perpetual losses its refining and marketing segment takes to subsidize the price o gasoline and diesel in Brazil. To find out how the company will be actually able to overcome this problem and hopefully become more profitable, tune into the video below.