Transaction in Own Shares

BP PLC
27 June 2007



BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  27 June 2007


BP p.l.c. announces that on 26 June 2007, it purchased for cancellation
2,100,000 ordinary shares at prices between 586.0 pence and 595.0 pence per
share.

Following the above transaction, BP p.l.c. holds 1,943,817,968 ordinary shares
in Treasury, and has 19,130,544,983 ordinary shares in issue (excluding Treasury
shares).



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




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