| Business | Phone |
| American Gas Co 2600 Tiller Ln, Columbus 43231 | (614) 823-4016 |
| Certified Gas 955 E 5th Ave, Columbus 43201 | (614) 884-0345 |
| Cinergy Corp 155 E Broad St # 21, Columbus 43215 | (614) 221-7551 |
| Columbia Gas Of Ohio 200 Civic Center Dr, Columbus 43215 | (614) 460-6000 |