Subject: "LINE SM-123".

Body: COLUMBIA GAS TRANSMISSION CORPORATION NOTICE TO ALL INTERESTED PARTIES OCTOBER 18, 2001 Notice ID: 3193 5 - NO RESPONSE REQUIRED NOTE: The following is being provided by Columbia as notice to all of its shippers of potential outages or reductions in available capacity in the identified portions of the system due to construction activities, routine maintenance, modifications, tests or repairs undertaken to protect the integrity and performance capability of its storage and transmission facilities. The information provided below is subject to change for numerous reasons, including but not limited to, third-party controlled events and decisions, weather, work schedules, equipment availability, force majeure events, etc. Thus, while Columbia is willing to provide this notice and update it periodically as necessary, Columbia is unable to represent and warrant that the specific activities will occur, or that they will occur on or near the specified dates. SUBJECT: LINE SM-123 Columbia anticipates that between October 25th and October 27th, Line SM-123 will be taken out of service due to long-wall mining activity. Columbia estimates the line to be out of service for twenty-one (21) days. The start date and duration of the outage is contingent upon the actual timing and progress of the long-wall mining activity. Given the level of firm commitments in this area, Columbia believes that there will be no available capacity for interruptible transportation. The following receipt points will be affected: Equitable Gas: Beaver Creek (H1) Hi Hat (F3) CNR Pipeline: Boldman (CNR02) Conoway (CNR03) Johns Creek (CNR08) Canada (CNR09) Canada (CNR10) Stafford (CNR11) Thacker/Majestic (CNR12) Briar Mtn. (CNR13) Huff Creek (CNR14) Conoco: Grant (P1) The same is true with respect to any Appalachian production flowing directly into Columbia's Line KA between Columbia's Boldman Compressor Station and Columbia's Huff Creek Compressor Station as well as production flowing into Columbia's Lines SM-116, KA-15, PM-3 and PM-17. If you have any questions, feel free to contact your Customer Services Team.

Subject: "NYISO - Technical Bulletin # 80 - Locational Reserve Availability Clearing Prices".

Body: Dear Market Participant, Technical Bulletin # 80 - Locational Reserve Availability Clearing Prices - is being distributed for Market Participant comment. The Technical Bulletin will be posted to the NYISO web site following the comment period. The purpose of our Technical Bulletins is to facilitate participation in the NYISO by communicating various NYISO concepts, techniques, and processes to Market Participants before they can be formally documented in a NYISO manual. Note: This Technical Bulletin is effective as of September 30, 2001. Please forward comments on this Technical Bulletin, via email, by 5PM on Friday, October 5, 2001 to: Peter Lemme NYISO Customer Technical Services plemme@nyiso.com (See attached file: TB_80_draft.pdf) - TB_80_draft.pdf

Subject: "Proposed Book Hierarchy".

Body: John/Kam and Donnie/Casey, Attached is the proposed hierarchy for Day 1 of testing (Wednesday afternoon as I understand) - see "VaR Hierarchy" tab in the spreadsheet. Please confirm that my population of books is complete and accurate. Thanks, Vlady.

Subject: "Transportation Commitment form".

Body:
Hey, Fall semester is coming to an end and Spring is in the air. Anyway, before running off for the winter break, we'll need your transportation requests. What I'll do this year, out of the generosity of my heart, if I don't hear from you I'll just assume you don't want to change, as opposed to you don't want any assistance. Is that good? Anyway, if you really need to change your transportation commitment or if you thought you asked for parking, but you didn't get any, SEND BACK THE FORM. Hope to hear from you soon. Have a nice month off. Seung Lee Assistant Director Evening MBA Program Haas School of Business