| Business | Phone |
| Conn Energy Inc 233 Saint Ann Dr, Mandeville 70471 | (985) 624-9251 |
| Tammany Oil & Gas Llc 1305 W Causeway Approach, Mandeville 70471 | (985) 626-8477 |
| Pilot Resources Inc 1330 Park Dr, Mandeville 70471 | (985) 626-0950 |
| Legacy Resources Co 1423 W Causeway Approach, Mandeville 70471 | (985) 674-4443 |