| Case Number | Case Title | Open Date | Closed Date |
| 89-1564-PL-ABN | TOPICO | 10/19/1989 | 12/12/1989 |
| 89-9001-PL-TRF | ASHLAND PIPE LINE COMPANY | 10/10/1989 | 01/03/2003 |
| 89-9002-PL-TRF | BUCKEYE PIPE LINE CO OF MICHIGAN | 10/04/1989 | 09/01/1998 |
| 89-9003-PL-TRF | COKINOS NATURAL GAS COMPANY | 11/06/1989 | 12/23/1997 |
| 89-9004-PL-TRF | EASTERN GAS LINES, INC. | 11/01/1989 | 04/06/2005 |
| 89-9005-PL-TRF | MARATHON PIPE LINE COMPANY | 09/21/1989 | 11/21/2002 |
| 89-9006-PL-TRF | MARK-OH GAS PIPELINE COMPANY | 09/20/1989 | 08/08/1996 |
| 89-9007-PL-TRF | MID-VALLEY PIPELINE COMPANY | 10/05/1989 | 01/03/2003 |
| 89-9009-PL-TRF | OHIO OIL GATHERING CORPORATION | 09/08/1989 | 09/08/1989 |
| 89-9011-PL-TRF | BP OIL PIPELINE COMPANY | 09/15/1989 | |
| 89-9014-PL-TRF | TOPICO PIPELINE | 10/18/1989 | 10/19/1989 |
| 89-9016-PL-TRF | OHIO INTRASTATE GAS TRANSMISSION CO | 10/05/1989 | 08/24/2006 |