| Case Number | Case Title | Open Date | Closed Date |
| 99-0096-GE-AIS | CINCINNATI GAS & ELECTRIC CO. | 02/02/1999 | 04/01/1999 |
| 99-0550-GE-AIS | CINCINNATI GAS & ELECTRIC CO. | 05/04/1999 | 06/16/1999 |
| 99-0740-GE-UNC | CINCINNATI GAS & ELECTRIC CO. | 06/18/1999 | 05/17/2001 |
| 99-0751-GE-PIP | DAYTON POWER & LIGHT COMPANY | 06/23/1999 | 08/19/1999 |