Transaction in Own Shares

BP PLC
03 May 2006

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  3 May 2006

BP p.l.c. announces that on 2 May 2006, it purchased 6,375,000 ordinary shares
at prices between 684.50 pence and 689.00 pence per share and between 1260.50
cents and 1273.50 cents per share. The purchased shares will all be held as
Treasury shares.

Following the above transaction, BP p.l.c. holds 1,442,333,105 ordinary shares
in Treasury, and has 20,247,075,569 ordinary shares in issue (excluding Treasury
shares).

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


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