I'm guessing the closest to you would be the North Texas Homebrewers Assn, but I may be wrong. Maybe Rockwall Brewers Assn.
Rockwall Brewers Assn - Rockwall, heh.
NTHBA - Dallas and northern suburbs, mostly.
Knights of the Brown Bottle - Seems to be mostly Mid-Cities/southern Mid-Cities, and some overlap to FtW and Dallas.
Cap and Hare - Fort Worth, Mid-Cities/northern Mid-Cities, and outlying regional areas.
Red River Brewers - North Texas, mostly TX/OK border areas. Whitesboro-based, iirc.