Purchase of Own Securities

BP PLC
19 September 2001

BP p.l.c.  -  Purchase of Own Securities

BP p.l.c.  -  19th September 2001

BP p.l.c. announces that on 18th September 2001, it purchased for cancellation
4,860,000  ordinary shares at prices between 554.00 pence and 567.00 pence per
share and between 808.33 cents and 825.67 cents per share.

Enquiries : Greg Coleman, BP p.l.c.    Tel : [phone]