I recently added Gastar Exploration (GST) to our Small-Cap Growth Portfolio. It is a "Strong Buy" up to $3 per share.
GST has strong production growth and will get a big boost from increasing natural gas prices.
I also think their pfd stock (GST-PA) is a good buy up to par value of $25. The monthly dividends are tax free since the company has no earnings and profits for income tax purposes until 2014.