| Business | Phone |
| Poko Exploration Co 115 E Elm St, Tyler 75702 | (903) 597-6384 |
| B A Wooldridge Petroleum Expl 121 S Broadway Ave, Tyler 75702 | (903) 597-1505 |
| Excel Operating Corp 212 Grande Blvd, Tyler 75703 | (903) 509-1025 |
| Colt Exploration Co Inc 121 S Broadway Ave, Tyler 75702 | (903) 593-0055 |
| T-Bar-X Ltd Co 100 Independence Pl 414, Tyler 75703 | (713) 789-0179 |
| Ecco Petroleum 12540 State Highway 155 N, Tyler 75708 | (903) 877-3535 |