IN: Mr. Kaminski, Greetings. I work for Aspen Technology Inc. www.aspentech.com We have not met, but a colleague of mine forwarded a copy of your presentation on Price Dynamics in the Energy Markets from the SIAM conference last April and am writing to you to encourage you to consider making a presentation at Aspen's corporate world conference Aspen World 2002 in October in Washington DC on this topic as well as the broader topic of Risk assessment and management in the energy markets. I know this seems a little strange making a "cold-call" in this manner, but I am reaching out in the community of Risk and Uncertainty management in the Supply Chain, Process and Energy markets to identify and solicit compelling speakers. AspenTech does not have a traditionally strong or well developed business or application layer in this realm, but, as our enterprise-wide reach and activities in planning, forecasting and supply chain have grown and integrated, I and the technology drivers in the company have been cultivating a demand and recognition for risk management and pricing activities to BE the next logical dimension to our growth and technology. Therefore, the session I am chairing (see the abstract below) will be one intended to educate, entice, and compel our clientele, business partners and staff on the business value, technology and mathematical and modeling technique. I would be happy to elaborate on the intended audience and opportunity for the conference. Please contact me at your earliest convenience by email or phone at the numbers below to discuss things if you think it would be a possibility or, if you would like more information on the context of the work and subject matter in AspenTech's core businesses. Thanks in advance for your time. Sincerely,

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OUT: Price Dynamics and Risk Management in the Energy Markets

IN: Lia Hernandez, currently of ET&S, has accepted a position at ENA effective August 2, 2000. To ensure that ET&S continues to be in compliance with the marketing affiliate rules, Lia's access to any ET&S or GPG-related LANs or applications should be removed at the close of business on August 1. In addition, Lia's email profile should be changed and any GPG or ET&S mass distribution lists should be changed. Please send a reply email to me after these changes have been completed, verifying and indicating the date that employee was: - removed from the LAN - EBB password was changed/canceled (if applicable) - removed from ET&S or GPG-related applications - email post office box was transfered. If you have questions, or if you believe there is someone else I need to contact in order to accomplish the above, please let me know.

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OUT: Transfer

IN: Paul, Attached is the final version of the Master Firm Agreement which incorporates NUI's notice information and all previously discussed changes. Also, attached is the April Transaction Confirmation Letter with the change to the addressee. The Exhibits for the letter are the NUI Confirmations Nos. 31060 and 46669. I understand that the changes that you requested to the swap guaranty are acceptable and that you will receive revised agreements shortly. Please let me know if there is anything else outstanding. Stacy

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OUT: NUI Agreements

IN: Sally, Attached is the Contact List that was submitted to Tammie Schoppe yesterday at Louise's request. I am going to add more detail (i.e, title, departments), as well as any changes that yourself and Bob Hall might suggest. Thanks so much in helping us clarify what was needed.

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OUT:
Contact List submitted to Tammie Schoppe