Transaction in Own Shares

BP PLC
17 April 2007


BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  17 April 2007


BP p.l.c. announces that on 16 April 2007, it purchased for cancellation
4,630,598 ordinary shares at prices between 572.0 pence and 578.0 pence per
share.

Following the above transaction, BP p.l.c. holds 1,943,935,076 ordinary shares
in Treasury, and has 19,253,059,012 ordinary shares in issue (excluding Treasury
shares).


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


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