| Business | Phone |
| Harold E O'Connor 325 N Saint Paul St, Dallas 75201 | (214) 741-3939 |
| Everett Coon 4849 Greenville Ave, Dallas 75206 | (214) 265-9670 |
| Timbercreek Energy Corp Po Box 613266, Dallas 75261 | (817) 267-1492 |
| Halff Energy 5430 Glen Lakes Dr 210, Dallas 75231 | (214) 987-3703 |
| J Roger Allspaugh Oil & Gas 5646 Milton St, Dallas 75206 | (214) 369-5888 |
| Texas American Syndicate 3878 Oak Lawn Ave, Dallas 75219 | (214) 691-3055 |
| Woodberry Royalty Inc 5646 Milton St, Dallas 75206 | (214) 691-5977 |
| Texaro Oil Co 8111 Preston Rd 801, Dallas 75225 | (214) 361-6365 |
| Athena Resources Dallas 75247 | (214) 267-5117 |
| Balboa Production Co 4100 Spring Valley Rd 500, Dallas 75244 | (972) 267-5204 |