These excerpts taken from the BP 6-K filed May 22, 2008.
Committees and delegation to committees
114 The Directors may delegate any of their powers or discretions to committees consisting of one or more members of their body and (if thought fit) one or more other persons co-opted as hereinafter provided. Any committee so formed shall in the exercise of the powers so delegated conform to any regulations which may from time to time be imposed by the Directors. Any such regulations may provide for or authorise the co-option to the committee of persons other than Directors and for such co-opted members to have voting rights as members of the committee but so that (a) the number of co-opted members shall be less than one-half of the total number of members of the committee and (b) no resolution of the committee shall be effective unless a majority of the members of the committee present at the meeting are Directors.