| Case Number | Case Title | Open Date | Closed Date |
| 73-0112-GA-ATA | SUBURBAN FUEL GAS INCORPORATED | 01/31/1973 | 08/25/1976 |
| 73-0114-GA-ATA | CONSUMER NATIONAL GAS | 01/31/1973 | 08/25/1976 |
| 73-0454-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 06/11/1973 | 07/08/1975 |
| 73-0540-GA-CSS | NORTHRIDGE CUSTO/COLUMBIA GAS OF O | 07/16/1973 | 03/04/1976 |
| 73-0643-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 08/27/1973 | 07/08/1975 |
| 73-0686-GA-SLF | RACINE GAS AND SER/MEIGSOUNTY | 09/19/1973 | 03/25/1975 |
| 73-0693-GA-CSS | NORTHLAND HEATIN/COLUMBIA GAS OF O | 09/25/1973 | 01/20/1976 |
| 73-0761-GA-COI | SUPPLY OF NATURAL GAS IN OHIO | 10/18/1973 | 03/30/1976 |
| 73-0780-GA-AIR | WEST OHIO GAS COMPANY | 10/31/1973 | 12/30/1975 |
| 73-0800-GA-CSS | SNODGRASS/EAST OHIO GAS COMPANY | 11/09/1973 | 07/08/1975 |
| 73-0825-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 11/21/1973 | 07/08/1975 |
| 73-0826-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 11/21/1973 | 07/08/1975 |
| 73-0827-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 11/21/1973 | 07/08/1975 |
| 73-0828-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 11/21/1973 | 07/08/1975 |
| 73-0849-GA-AEC | COLUMBIA GAS OF OHIO INCORPORATED | 12/04/1973 | 12/13/1973 |
| 73-0882-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 12/21/1973 | 07/08/1975 |
| 73-0888-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 12/21/1973 | 07/08/1975 |
| 73-0890-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 12/21/1973 | 07/08/1975 |
| 73-0894-GA-AIR | COLUMBIA GAS OF OHIO INCORPORATED | 12/31/1973 | 02/03/1976 |
| 73-0895-GA-CSS | SOVA/OHIO GAS COMPANY | 12/21/1973 | 08/25/1975 |
| 73-0897-GA-CSS | CITY OF OBERLIN /COLUMBIA GAS OF O | 12/26/1973 | 03/30/1976 |