R.F.
I use the website www.powertochoose.com to find cheaper rates. I am no longer loyal to any one company. I shop the rates all the time and have been known to switch several time a year if I find a better rate. Our supplier is Oncor; but, it doesn't matter who provides the electricity to them. Therefore, my service never changes; just my bills! The website will also tell you what providers are in your neighborhood, too.