Cases with Industry Code "PL" PIPE LINE, Purpose Code "TRF" Commission approved final tariffs, and Status "AR" Archived (12 cases) Case NumberCase TitleOpen DateClosed Date 89-6011-PL-TRFYOUNGSTOWN THERMAL ENERGY CORP.08/07/199111/01/1991 89-9001-PL-TRFASHLAND PIPE LINE COMPANY10/10/198901/03/2003 89-9002-PL-TRFBUCKEYE PIPE LINE CO OF MICHIGAN10/04/198909/01/1998 89-9003-PL-TRFCOKINOS NATURAL GAS COMPANY11/06/198912/23/1997 89-9004-PL-TRFEASTERN GAS LINES, INC.11/01/198904/06/2005 89-9005-PL-TRFMARATHON PIPE LINE COMPANY09/21/198911/21/2002 89-9006-PL-TRFMARK-OH GAS PIPELINE COMPANY09/20/198908/08/1996 89-9007-PL-TRFMID-VALLEY PIPELINE COMPANY10/05/198901/03/2003 89-9009-PL-TRFOHIO OIL GATHERING CORPORATION09/08/198909/08/1989 89-9014-PL-TRFTOPICO PIPELINE10/18/198910/19/1989 89-9016-PL-TRFOHIO INTRASTATE GAS TRANSMISSION CO10/05/198908/24/2006 89-9017-PL-TRFSYMMES NATURAL GAS COMPANY07/20/199202/19/2004