Transaction in Own Shares

BP PLC
30 June 2005


30th June 2005

BP plc
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BP close period share repurchase programme
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BP plc announces that it has commenced an irrevocable, non-discretionary
programme to purchase shares on its own behalf, for putting into treasury,
during its close period. The programme commences on the 1st July 2005 and runs
up to and including 26th July 2005, the announcement day for BP's 2nd Quarter
results.

Any acquisitions will be effected within certain pre-set parameters, and in
accordance with both BP's general authority to repurchase shares and Chapter 15
of the Listing Rules which requires that the maximum price paid be limited to no
more than 105 per cent of the average middle market closing price of BP shares
for the 5 dealing days preceding the date of purchase. The company confirms that
it currently has no unpublished price sensitive information.

Further enquiries:
BP Press Office: [phone]




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