ARTHUR ANDERSEN LLP November 5, 1999 Public Service Company of New Mexico: We are aware that Public Service Company of New Mexico has incorporated by reference in its Registration Statement Nos. 33-65418, 333-03289, 333-03303, and 333-53367 its Form 10-Q for the quarter ended September 30, 1999, which includes our report dated November 5, 1999, covering the unaudited interim financial information contained therein. Pursuant to Regulation C of the Securities Act of 1933, that report is not considered a part of the registration statement prepared or certified by our firm or a report prepared or certified by our firm within the meaning of Sections 7 and 11 of the Act. Very truly yours, /s/ Arthur Andersen LLP