| Business | Phone |
| Steller Energy & Investment 3629 Churchill Ln, Plano 75075 | (972) 673-1215 |
| Krandee Group Inc 1108 Dobie Dr, Plano 75074 | (214) 473-9939 |
| Omega Energy Corp 1700 Alma Dr, Plano 75075 | (972) 424-9243 |
| Sino Technology Svc 2317 Coit Rd, Plano 75075 | (972) 612-0364 |
| Ascent Energy Inc 4965 Preston Park Blvd 800, Plano 75093 | (972) 543-3900 |
| Aspen Exploration 2901 Dallas Pkwy, Plano 75093 | (972) 673-0311 |
| Wynn-Crosby Energy Inc 5500 W Plano Pkwy, Plano 75093 | (972) 380-5500 |