Transaction in Own Shares

BP PLC
15 December 2005


BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  15 December 2005


BP p.l.c. announces that on 14 December 2005, it purchased 3,577,000 ordinary
shares at prices between 629.00 pence and 632.50 pence per share. The purchased
shares will all be held as Treasury shares.

BP p.l.c. also announces that on 14 December 2005 it transferred to participants
in its employee share schemes 23,599 ordinary shares at prices between 350.00
pence and 511.00 pence. These shares were previously held as treasury shares.

Following the above transaction, BP p.l.c. holds 970,421,684 ordinary shares in
Treasury, and has 20,668,493,178 ordinary shares in issue (excluding Treasury
shares).


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


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