Independent Generators: Power producers like Southern Power Power Marketers: An entity that owns electric energy in Texas to then sell it at wholesale "but does not own generation, transmission, or distribution facilities and does not have a certificated service area," according to the PUC. Major energy and banking companies like BP, Shell, Merrill Lynch and Morgan Stanley are some of the players in this group. Retail Electric Providers: A provider an average Texan pays, like TXU or Reliant, to get service Investor-Owned Electric Utilities: CenterPoint Energy is one example of this kind of member Municipally-Owned Electric Utilities: Denton Municipal Electric, an electric provider owned by the residents of Denton, is one of these kinds of utilities