| Business | Phone |
| Eott Energy Operating Ltd 278 Hess Station Rd, Heidelberg 39439 | (601) 787-3641 |
| Tennessee Gas Pipeline Co 83 County Road 37, Heidelberg 39439 | (601) 787-3461 |
| Transcontinental Gas Pipeline 1666 Bonner Rd, Heidelberg 39439 | (601) 426-6461 |
| Transcontinental Gas Pipeline 59 County Road 3711, Heidelberg 39439 | (601) 787-2839 |