At end of first paragraph, add:  Terms used but not otherwise defined herein  shall have such meaning as set forth in the Agreement.
Insert in "Credit or Other Special Provisions":  On or before 5:00 p.m.  (Houston time) on Wednesday, May 17, 2000, Counterparty shall deliver to ENA  Performance Assurance in the form of a Letter of Credit in the amount of  $10,000  which amount shall be maintained in favor of ENA in accordance with  the terms of Annex A to the Agreement and which may be aggregated together  with other amounts required for other Transactions subject to the Agreement  in order to establish a single Letter of Credit.
Further, at any time during  the term of this Transaction, upon the request of ENA in its sole discretion,  Counterparty shall deliver additional Performance Assurance in the form of a  Letter of Credit in the amount of $10,000, subject to the provisions of the  foregoing sentence.
In addition to such Performance Assurance, Counterparty  shall establish, maintain, renew, substitute and increase such Performance  Assurance in accordance with the terms and provisions of Annex A to the  Agreement and the failure to do so shall constitute an Event of Default under  Section 5A(6) of the Agreement.

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