Transaction in Own Shares

BP PLC
27 July 2006

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

BP p.l.c.  -  27 July 2006



BP p.l.c. announces that on 26 July 2006, it purchased 8,184,000 ordinary shares
at prices between 630.0 pence and 635.0 pence per share and between 1160.67
cents and 1178.50 cents per share. The purchased shares will all be held as
Treasury shares.

BP p.l.c. also announces that on 26 July 2006 it transferred to participants in
its employee share schemes 13,824 ordinary shares at prices between 350.00 pence
and 511.0 pence. These shares were previously held as treasury shares.

Following the above transactions, BP p.l.c. holds 1,838,354,840 ordinary shares
in Treasury, and has 19,857,893,669 ordinary shares in issue (excluding Treasury
shares).



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




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