Somone on NPR's Morning Edition excplained that the water in natural gas is removed by the gas companies in the north, so thta it won't freeze, but they didn't do that in Texas, so it did freeze.
I suspect they're not set up to do it even if they wanted to.
And of course, the Texas electric grid is separate from the rest of America, so they won't be regulated by the feds, but this means they also can't take electricity from the rest of the country when they need it, like last week. (Except for El Paso, which is connected to the USA grid and iiuc not the Texas grid. )
Hence, no gas and no electricity.