| Business | Phone |
| Texakoma Oil & Gas Corp 5400 L B J Fwy, Addison 75001 | (972) 764-3791 |
| Lonestar Securities 15851 Dallas Pkwy 105, Addison 75001 | (972) 701-8620 |
| Indigo Oil 15506 Wright Brothers Dr, Addison 75001 | (972) 960-8889 |
| Maverick Oil & Gas Inc 16415 Addison Rd, Addison 75001 | (214) 239-4333 |
| Pinewood Exploration Inc 4444 Westgrove Dr, Addison 75001 | (972) 732-4091 |
| Praetorian Petroleum 15401 Addison Rd, Addison 75001 | (972) 716-9445 |
| Primera Energy Partners 4302 Sunbelt Dr, Addison 75001 | (972) 733-3431 |