- Bridgeport Contract Svc
- Bridgeport Tank Trucks Inc
- C D Roustabout Co
- CD Consulting & Operating Co
- D & D Hydraulic Casing Tong
- E M Hobbs
- Engines & Compressor Svc
- G & L Tool Co
- ITS
- Nabors Drilling USA
- North Texas Compression
- Philco Tubing Testers
- Quicksilver Service Co
- Raider Services & Equipment
- Signal Wireline & Testing
- Smith Oilfield & Environmental
- Smith Well Svc
- Stinger Wellhead Protection
- Threshold Development Co
- Weatherford
- Weatherford Completion Systems
- Weatherford GEMOCO
- Weatherford Wellhead
