CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent  public  accountants,  we hereby consent to the  incorporation by
reference in KeySpan  Corporation's  Registration  Statements on Form S-3 (filed
December  2,  1999) and on Form S-8 (Nos.  333-53765,  333-79151)  of our report
dated February 12, 1999, which is included in Exhibit 99.1 to the Current Report
on Form 8-K dated December 2, 1999.




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