| Business | Phone |
| Ampak Energy Co 1515 Heritage Dr, Mckinney 75069 | (972) 562-4422 |
| Ascent Energy Inc 1700 N Redbud Blvd # 450, Mckinney 75069 | (972) 547-7150 |
| Cam West Ii Lp 321 N Central Expy 350, Mckinney 75070 | (972) 562-5400 |
| Headington Oil Co 1700 Redbud Blvd, Mckinney 75069 | (972) 529-9557 |
| La Mesa 6200 Virginia Pkwy, Mckinney 75071 | (972) 542-3168 |
| Landmark Venture Inc 708 S College St, Mckinney 75069 | (972) 377-0076 |
| Victoria Energy 1515 Heritage Dr, Mckinney 75069 | (972) 562-8855 |
| Southland Resources Inc 212 Westpark Dr N, Mckinney 75071 | (972) 547-9416 |