Red Oak is primarily served by Red Oak City Water or Rocket Water SUD. The latter is a special utility district. It is not owned by a government, nor by the users. In practice it works like water companies you will be familiar with in other areas.
I believe that you are referring to Josey Acres in Red Oak. Both of the above serve parts of Josey Acres. I've included the websites for Red Oak Water Dept. http://www.redoaktx.org/category/city-services-and-utilities and for Rockett Water below.