These excerpts taken from the BP 6-K filed May 22, 2008.
Appointment of an Approved Depositary
156 The Directors may appoint as an Approved Depositary any person:
(i) who is a member holding Ordinary Shares;
(ii) on whose behalf Ordinary Shares are held by a nominee, or
(iii) by whom or on whose behalf Share Warrants have been deposited pursuant to Article 27(viii).
The appointment of an Approved Depositary already effected prior to the adoption of these Articles shall remain in force on the terms and conditions as approved by the Directors.