Exhibit 16 [LOGO] PricewaterhouseCoopers LLP 200 East Randolph Drive Chicago IL 60601 Telephone (312) 540 1500 January 4, 1999 Securities and Exchange Commission 450 Fifth Street N.W. Washington, D.C. 20549 Ladies and Gentlemen: We have read Item 4 of BP Amoco Corporation's Form 8-K dated December 31, 1998 and are in agreement with the statements contained in paragraph 4 (a) therein. Yours very truly, /s/ PricewaterhouseCoopers LLP