These excerpts taken from the BP 6-K filed May 22, 2008.
Means of appointing proxies: writing
83 (A) A proxy may be appointed by an instrument in writing in any usual or common form, or in any other written form which the Directors may approve, and:
(i) in the case of an appointor who is a natural person shall be signed by the appointor or his agent lawfully authorised in writing; and
(ii) in the case of an appointor which is a corporation shall be either given under its common seal or signed on its behalf by an agent lawfully authorised in writing or by a duly authorised officer of the corporation.
The signature on such an instrument appointing a proxy need not be witnessed.
(B) Such an instrument appointing a proxy must be left at such place or one of such places (if any) as may be specified for the purpose in or by way of note to or in any document accompanying the notice convening the meeting (or, if no place is so specified, at the Transfer Office) not less than forty-eight hours (or such shorter time as the Directors may determine) before the time appointed for the commencement of the meeting or adjourned meeting (or, in the case of a poll taken otherwise than at or on the same day as the meeting or adjourned meeting, before the time appointed for the taking of the poll) at which it is to be used, and in default shall not be treated as valid. Calculation of any such forty-eight hour period shall take no account of any part of a day that is not a working day.
(C) Where an instrument appointing a proxy is signed on behalf of the appointor by an agent lawfully authorised in writing, the authority under which the agent is appointed or a duly certified copy thereof must (failing previous registration with the Company) be lodged with the instrument of proxy in the manner directed above, failing which the instrument may be treated as invalid.
83 (A) A