Transaction in Own Shares

BP PLC
11 August 2005



BP p.l.c.  -  Transaction in Own Shares

BP p.l.c.  -  11 August 2005


BP p.l.c. announces that on 10 August 2005, it purchased 6,800,000 ordinary
shares at prices between 651.50 pence and 659.00 pence per share. The purchased
shares will all be held as Treasury shares.

Following the above purchase, BP p.l.c. holds 545,235,784 ordinary shares in
Treasury, and has 20,960,391,731 ordinary shares in issue (excluding Treasury
shares).


Enquiries: Fergus MacLeod, BP p.l.c.    Tel : [phone]


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