SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549



                                    Form 6-K

                            Report of Foreign Issuer

                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934


                        for the period ended 30 May, 2007


                                    BP p.l.c.
                 (Translation of registrant's name into English)


                 1 ST JAMES'S SQUARE, LONDON, SW1Y 4PD, ENGLAND
                    (Address of principal executive offices)


     Indicate  by check mark  whether the  registrant  files or will file annual
     reports under cover Form 20-F or Form 40-F.


              Form 20-F        |X|          Form 40-F
                         ---------------               ----------------


     Indicate by check mark whether the registrant by furnishing the information
     contained in this Form is also thereby  furnishing  the  information to the
     Commission  pursuant to Rule 12g3-2(b) under the Securities Exchange Act of
     1934.


                    Yes                            No        |X|
                         ---------------               ----------------







Press Release


May 30, 2007


IAIN CONN BECOMES REFINING & MARKETING BOSS AS JOHN MANZONI LEAVES BP


BP today announced that Iain Conn has been appointed chief executive of the
Group's refining and marketing business with effect from June 1, 2007. He
replaces John Manzoni who is leaving BP after 24 years' service.

Mr Manzoni has agreed with the board that, following a three-month handover
period, he will step down as a group managing director and leave BP on August
31, 2007. He intends to take a senior position elsewhere in the industry. Mr
Conn's current responsibilities for functions and regions will be shared with
other executive colleagues.

Commenting on the changes, BP chairman Peter Sutherland said: "John Manzoni has
shown the most immense commitment and dedication to the company. The BP board
extends its thanks for his long and loyal service and wishes him every success
in the next phase of his career."

Note to editors:


   - A biography of Iain Conn is attached and a photograph is available on
     request from the BP press office


Further information:

BP press office: +44 (0)20 7496 4076



Iain Conn


Iain Conn (44) was appointed an executive director of BP in July 2004 with
functional responsibility for safety & operations, technology, marketing, human
resources, information technology, procurement and supply chain management. He
also had regional responsibility for Europe, Africa, Middle East, Russia,
Caspian and Asia Pacific.


His career with BP began in 1986 and he has had various roles in exploration &
production, oil trading and in group headquarters. He has worked overseas in
Italy, Colombia and the United States.


Iain has spent a number of years in refining and marketing, most recently
between 2000-2, when he was responsible for marketing operations in Europe and
for the integration of Veba Oel into BP. In 2002 he was appointed chief
executive of BP's petrochemicals business.


In addition to his role as chief executive of refining and marketing, Iain will
have regional responsibility for Europe, Southern Africa and Asia Pacific.


Born in Edinburgh, Iain was educated in Musselburgh, Scotland, and then studied
chemical engineering and management at The Imperial College, London. He is a
Fellow of the Institution of Chemical Engineers.


Iain is a non-executive director of Rolls-Royce Group plc; chairman of the
advisory board of The Imperial College London Tanaka Business School; and a
member of the advisory boards of the Centre for European Reform and of the
Center for China in the World Economy at Tsinghua University.


Personal interests include fishing, skiing, blues music, antiques, food & wine
and travel.


Iain is married and has three children.





                                         SIGNATURES





Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.



                                         BP p.l.c.
                                        (Registrant)



Dated: 30 May, 2007                               /s/ D. J. PEARL
                                                  ..............................
                                                  D. J. PEARL
                                                  Deputy Company Secretary