EX-23.1
CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
As independent public accountants, we hereby consent to the incorporation by
reference in this registration statement of our report dated January 27, 2000
included in KeySpan Corporation's Form 10-K for the twelve months ended December
31, 1999.
/s/ Arthur Andersen LLP
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ARTHUR ANDERSEN LLP
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EX-23.2 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
We consent to the incorporation by reference in the Registration Statement (Form
S-8) relating to the KeySpan Energy 401(k) Plan for Management Employees and
KeySpan Energy 401(k) Plan for Union Employees of our report dated May 22, 1998
with respect to the consolidated financial statements and schedule of Long
Island Lighting Company included in the Annual Report (Form 10-K) of KeySpan
Corporation (formerly known as MarketSpan Corporation) for the year ended
December 31, 1999, filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP
Melville, New York
June 29, 2000
