George Thorp Waterwell Drilling
510 W. Mulberry Street
Sonora,TX 76950
325/387-5104 or 325/206-0233

Rocky Jones
P.O. Box 914
Sonora,TX 76950
325/387-3711

Charles McGuire Well Service
P.O. Box 597
Junction, TX 76849-0597
325/446-2277

Lange Drilling Co.
P.O. Box 283 
Rowena, TX 76875
325/442-3611

Curtis Abel Drilling Co.
P.O. Box 348
San Angelo, TX 76902
325/949-6607

Hutto (T-Bar) Drilling Co.
P.O. Box 420877
Del Rio, TX 77842-0877
830/774-7287

Pickens Drilling Co. & Well Service
P.O. Box 543
Harper, TX 78631
830-864-4487 
FAX: 830-864-4477

Armadigger, Inc.
P.O. Box 1329
Bandera, TX 78003
830/796-4734 or 830/460-8203