Eagle Ford Shale
Colorado, Lavaca,
Dewitt, Goliad,
Bee, Karnes,
Wilson, Atascosa,
Live Oak, McMullen,
La Salle, Webb,
Dimmit, Maverick,
Gonzalez
Haynessville Shale
Harrison, Panola,
Rusk, Shelby,
Nacogdoches
Barnett Shale
Wise, Denton,
Tarrant, Parker,
Dallas, Colin,
Hood, Johnson,
Ellis
West Texas / Permian Basin
