Directors' Dealings

BP AMOCO PLC
20 September 1999

LETTER TO COMPANY ANNOUNCEMENTS

We write to notify you that we have today been advised:-

* that the following Directors of BP Amoco p.l.c. acquired the number of BP
  Amoco Ordinary shares shown opposite their names on 10 September 1999 @ £11.96
  per share under the BP Amoco Dividend Reinvestment Plan:-

  Dr J.G.S. Buchanan                    587 Ordinary shares
  Mr R.F. Chase                         425 Ordinary shares
  Sir Robin Nicholson                     9 Ordinary shares

* that the following Directors of BP Amoco p.l.c. acquired the number of BP
  Amoco Ordinary shares shown opposite their names through reinvestment of
  dividends by Midland Bank Trust Company Limited:-

  Dr J.G.S. Buchanan                    12 Ordinary shares @ £11.96 per share on
                                        10 September 1999
                                        1 Ordinary share @ 11.67 per share on
                                        13 September 1999

  Mr R.L. Olver                         34 Ordinary shares @ £11.96 per share on
                                        10 September 1999

  Mr B.K. Sanderson                     31 Ordinary shares @ £11.96 per share on
                                        10 September 1999
                                        1 Ordinary share @ £11.68 per share on
                                        13 September 1999

LETTER FROM BP AMOCO PLC