The Eagle Ford Shale play is one of the most important oil-producing regions in the U.S. right now. Located predominantly in South Texas, the northeast corner of this play is called the Eaglebine, and it's starting to get attention from exploration and production companies. In this video, Fool.com contributor Aimee Duffy talks to Tyler Crowe about which companies are active in the Eaglebine, and what investors can expect from the region in 2013.