Plains All American Pipeline (PAA -1.02%) was one of the best-performing midstream stocks of 2012. Its $17.1 billion in assets span some of the most lucrative North American oil and gas plays and include close to 19,000 miles of pipeline, numerous rail cars, trucks, barges, storage facilities, fractionation plants, and processing centers spread across the U.S. and Canada. In this video, Aimee Duffy explains Plains and its growth strategy, and why she thinks it may have an even better 2013.