Exhibit 16-1 Arthur Andersen LLP 1345 Avenue of the Americas New York, NY 10105-0032 May 28, 1997 Mr. Michael Sutton Office of the Chief Accountant SECPS Letter File Securities and Exchange Commission Mail Stop 9-5 450 Fifth Street, N.W. Washington, D.C. 20549 Dear Mr. Sutton: We have read Item 4 paragraphs (a)(i) through (a)(vi) included in the attached Form 8-K dated May 28, 1997 of Pennsylvania Enterprises, Inc. filed with the Securities and Exchange Commission and are in agreement with the statements contained therein. Very truly yours, /s/ Arthur Andersen LLP Arthur Andersen LLP