The counties displayed on the map include the following:

Primary Focus:
Midland

Secondary Focus:
Ector

Greater West Texas:
Andrews, Bailey, Borden, Brewster, Cochran, Coke, Cottle, Crane, Crockett, Crosby, Culberson, Dawson, Dickens, El Paso, Fisher, Floyd, Gaines, Garza, Glasscock, Hale, Hockley, Howard, Hudspeth, Irion, Jeff Davis, Kent, Kimble, King, Lamb, Loving, Lubbock, Lynn, Martin, Menard, Mitchell, Motley, Nolan, Pecos, Presidio, Reagan, Reeves, Schleicher, Scurry, Sterling, Stonewall, Sutton, Taylor, Terrell, Terry, Tom Green, Upton, Val Verde, Ward, Winkler, Yoakum

Total no. of counties listed: 57