| Case Number | Case Title | Open Date | Closed Date |
| 71-0461-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 07/22/1971 | 05/13/1976 |
| 71-0475-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 07/27/1971 | 05/13/1976 |
| 71-0625-GA-ATA | COLUMBIA GAS OF OHIO INCORPORATED | 10/04/1971 | 04/28/1975 |
| 71-0734-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 11/17/1971 | 05/13/1976 |
| 71-0735-GA-ATA | COLUMBIA GAS OF OHIO INCORPORATED | 11/17/1971 | 04/28/1975 |
| 71-0757-GA-COI | INV OF NATURAL GAS SUPPLY | 11/24/1971 | 08/11/1976 |
| 71-0830-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 12/30/1971 | 05/13/1976 |
| 71-0831-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 12/30/1971 | 05/13/1976 |
| 71-0832-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 12/30/1971 | 05/13/1976 |