| Case Number | Case Title | Open Date | Closed Date |
| 88-0009-GE-FOR | LONG-TERM FORECAST RPTS 4901:5-3-01 | 01/04/1988 | 01/05/1988 |
| 88-0031-GE-ATA | CINCINNATI GAS & ELECTRIC COMPANY | 01/07/1988 | 08/16/1988 |
| 88-0841-GE-AIS | CINCINNATI GAS AND ELECTRIC CO | 05/25/1988 | 06/14/1988 |
| 88-0916-GE-CSS | RICHARD POWELL VS CG&E | 06/10/1988 | 07/20/1988 |
| 88-1115-GE-PIP | PIP PLAN | 07/27/1988 | 12/02/1993 |
| 88-1989-GE-AIS | CINCINNATI GAS & ELECTRIC COMPANY | 12/30/1988 | 01/24/1989 |