BRIEF-Tallgrass Energy Partners closes on acquisition of 25 pct interest in Rockies Express pipeline By: Reuters: Company News May 09, 2016 at 17:08 PM EDT * Closes on the acquisition of a 25 percent interest in Rockies Express pipeline Read More >> Related Stocks: Sempra Energy Tallgrass Energy Gp LP Tallgrass Energy Partners, LP Common Units representing limited partner interest