Regency Energy Partners LP (the Partnership) is engaged in the gathering and processing, contract compression, treating and transportation of natural gas and the transportation, fractionation and storage of natural gas liquids (NGLs). The Partnership operates in five business segments: Gathering and Processing, Joint Ventures, Contract Compression, Contract Treating, and Corporate and Others. Its assets are primarily located in Texas, Louisiana, Arkansas, Pennsylvania, California, Mississippi, Alabama, West Virginia and the mid-continent region of the United States, which includes Kansas, Colorado and Oklahoma. On September 1, 2011, the Partnership purchased an additional 0.1% interest in Midcontinent Express Pipeline LLC (MEP) from ETP. In May 2013, Regency Energy Partners LP closed the acquisition of Southern Union Gathering Company, LLC from Southern Union Company.