| Business | Phone |
| Amerada Hess Corp 381 Mansfield Ave # 131, Pittsburgh 15220 | (412) 920-4000 |
| Castle Gas Co Inc 3829 Willow Ave, Pittsburgh 15234 | (412) 343-8722 |
| Colonial Energy Inc 165 Curry Hollow Rd # 23, Pittsburgh 15236 | (412) 650-0126 |
| Dominion Peoples 625 Liberty Ave # 600, Pittsburgh 15222 | (412) 471-5100 |
| Equitable Gas Pittsburgh 15222 | (412) 395-3050 |
| Equitable Gas Co 225 N Shore Dr, Pittsburgh 15212 | (412) 395-2970 |
| Equitable Gas Co Lp 200 Allegheny Center Mall, Pittsburgh 15212 | (412) 395-3000 |
| Equitable Gas Co Sada 132 Greenlee Rd, Pittsburgh 15227 | (724) 239-5658 |
| Equitable Resources Inc 225 N Shore Dr, Pittsburgh 15212 | (412) 553-5700 |
| Equitable Utilities 301 Grant St # 3300, Pittsburgh 15219 | (412) 553-5700 |
| Equitrans Inc 100 Allegheny Center Mall, Pittsburgh 15212 | (412) 231-4888 |
| Ksm Energy Inc 6101 Riverfront Dr, Pittsburgh 15238 | (412) 323-1826 |
| T & F Exploration Lt 2559 Washington Rd # 511, Pittsburgh 15241 | (412) 854-5108 |
| Ugi Energy Svc Inc 680 Andersen Dr # 200, Pittsburgh 15220 | (412) 920-0800 |