| Business | Phone |
| American Metal-Lock Co 4415 Navigation Blvd, Houston 77011 | (713) 921-0257 |
| Charles' Portable Welding 615 Harbor St, Houston 77020 | (713) 674-8116 |
| Driller's Machine 5929 Northdale St, Houston 77087 | (713) 649-2695 |
| Lone Star Hydril & Maintenance 16026 Miller Road 1, Houston 77049 | (281) 457-6602 |