penny stocks10 Top Oil Penny Stocks to Watch (May 2017) May 8, 2017 by Alex McGuire We've rounded up a list of the 10 top oil penny stocks to watch in May. Although these stocks have posted gains as high as 29%, it's hard to pick an oil stock when oil prices are always volatile. That's why we've identified one oil stock poised for a big double-digit return over the next year...