It has been a great 2013 for the midstream industry. Most of the companies in this subsector are outperforming the S&P 500 through the first quarter of this year. In this video, Motley fool contributor Aimee Duffy takes a look at three companies that had a brutal 2012, but have since watched their share prices rise significantly over the first quarter. Two of the companies Aimee looks at have already made up for last year's losses, while the third has gone beyond that, trading at a 52-week high.