Transaction in Own Shares

BP PLC
30 June 2005

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

BP p.l.c.  -  30 June 2005



BP p.l.c. announces that on 29 June 2005, it purchased 4,700,000 ordinary shares
at prices between 588.00 pence and 592.00 pence per share. The purchased shares
will all be held as Treasury shares.



Following the above purchase, BP p.l.c. holds 314,293,000 ordinary shares in
Treasury, and has 21,178,722,324 ordinary shares in issue (excluding Treasury
shares).



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


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