Transaction in Own Shares

BP PLC
16 May 2006

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

BP p.l.c.  -  16 May 2006



BP p.l.c. announces that on 15 May 2006, it purchased 6,454,500 ordinary shares
at prices between 643.0 pence and 660.0 pence per share and between 1209.83
cents and 1223.33 cents per share. The purchased shares will all be held as
Treasury shares.



Following the above transactions, BP p.l.c. holds 1,519,494,164 ordinary shares
in Treasury, and has 20,174,136,829 ordinary shares in issue (excluding Treasury
shares).



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


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