| Business | Phone |
| Management Information Systems 359 N West St # 152, Jackson 39201 | (601) 359-3487 |
| Oil & Gas Board 500 Greymont Ave # E, Jackson 39202 | (601) 354-7142 |
| Public Service Po Box 1174, Jackson 39215 | (601) 545-4418 |
| Public Service Commission 501 N West St # 201a, Jackson 39201 | (601) 961-5477 |
| Public Utilities Dept Jackson 39201 | (601) 961-5493 |
| Energy Division 501 N West St # 701c, Jackson 39201 | (601) 359-6600 |