Transaction in Own Shares

BP PLC
17 August 2005

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

BP p.l.c.  -  17 August 2005



BP p.l.c. announces that on 16 August 2005, it purchased 6,039,097 ordinary
shares at prices between 638.00 pence and 644.00 pence per share and between
1152.67 cents and 1159.00 cents per share. The purchased shares will all be held
as Treasury shares.



Following the above purchase, BP p.l.c. holds 569,496,881 ordinary shares in
Treasury, and has 20,944,216,283 ordinary shares in issue (excluding Treasury
shares).



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


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