These excerpts taken from the BP 6-K filed May 22, 2008.
Issue of certificated or uncertificated shares
17 In so far as permitted by law, and without having to consult any shareholder, the Directors may at any time or times do all or any of the following for any purpose they see fit:
(i) cause shares issued by the Company to be issued as certificated shares or uncertificated shares;
(ii) permit any shares in the Company to be held as certificated shares or uncertificated shares;
(iii) permit the transfer of any uncertificated shares in the Company by means of a relevant system;
(iv) make such arrangements as they think fit for shares in the Company to be held and transferred as uncertificated shares, and to be converted from certificated shares to uncertificated shares or vice versa;
(v) determine that any shares in the Company shall cease to be held and transferred as uncertificated shares.