For many investors in the master limited partnership space, the best part of earnings season is the news that their distribution is going up. In this video, Fool.com contributor Aimee Duffy discusses three of the most recent increases handed out by Enterprise Products Partners (EPD 1.22%), Plains All American Pipeline (PAA 2.11%), and Tallgrass Energy Partners (NYSE: TEP). Aimee talks to fellow contributor Tyler Crowe about the distribution history at these three midstream players and what investors should think about going forward.