| Case Number | Case Title | Open Date | Closed Date |
| 89-8010-GA-TRF | MURPHY GAS, INC. | 08/30/1989 | 10/28/1999 |
| 89-8011-GA-TRF | NATIONAL GAS & OIL CORPORATION | 12/01/1989 | 01/01/2003 |
| 89-8016-GA-TRF | OHIO INTRASTATE GAS TRANSMISSION CO | 12/01/1989 | 01/01/2003 |
| 89-8022-GA-TRF | RIVER GAS COMPANY | 09/19/1989 | 01/03/2003 |
| 89-8026-GA-TRF | STRONGSVILLE PIPE COMPANY | 09/29/1989 | 08/03/2000 |
| 89-8031-GA-TRF | WEST MILGROVE GAS COMPANY | 10/17/1989 | 01/03/2003 |
| 89-8032-GA-TRF | WEST OHIO GAS COMPANY | 10/17/1989 | 10/12/2000 |
| 89-8036-GA-TRF | PARAMOUNT NATURAL GAS COMPANY | 09/10/1992 | 01/01/2003 |
| 89-8038-GA-TRF | POWER ENERGY DISTRIBUTION | 12/01/1989 | 08/20/1999 |
| 89-8040-GA-TRF | HORIZON UTILITIES GROUP, INC | 09/03/1998 | 11/05/2004 |