UIL Holdings Corporation operates in the Electric services sector. UIL Holdings Corporation (UIL Holdings) is ownership of its operating regulated utilities. The utility businesses consist of the electric distribution and transmission operations of The United Illuminating Company (UI) and the natural gas transportation, distribution and sales operations of The Southern Connecticut Gas Company (SCG), a subsidiary of Connecticut Energy Corporation (CEC), Connecticut Natural Gas Corporation (CNG), a subsidiary of CTG Resources, Inc. (CTG), and The Berkshire Gas Company (Berkshire), a subsidiary of Berkshire Energy Resources (BER, and together with SCG, CNG, Berkshire, CEC and CTG, the Gas Companies). CEC, CTG and BER are holding companies whose sole business is ownership of their respective operating regulated gas utility. UI is also a 50-50 joint venturer with NRG Energy, Inc. (NRG) in GCE Holding LLC, whose wholly owned subsidiary, GenConn Energy LLC. On November 16, 2010, SCG, CNG and Berkshire were acquired by UIL Holdings. In our complete report available for purchase the company is compared to: Idacorp, Inc., El Paso Electric Company and Cleco Corporation.