BP PLC — AGM Information 2012

Feb 28, 2012

Annual General Meeting 2012

bp.com/agm

A letter from Carl-Henric Svanberg, Chairman

Dear Shareholder

Our 103rd Annual General Meeting will take place at ExCeL London on Thursday, 12 April 2012. It will start at 11.30 am and I hope you can join us there. We want our shareholders to be part of the meeting and if you are unable to come along to the meeting I would like to invite you to watch the meeting via the webcast as many of you did last year.

You will find the Notice of Meeting, together with notes explaining the business to be considered on the day at www.bp.com/notice. The first item is our discussion of BP's performance last year. In the BP Annual Report and Form 20-F 2011 and in the BP Summary Review 2011, we describe the key events of the year, our strategy and business model and how we manage risk. The BP Annual Report and Form 20-F 2011 also contains my report on the Board's performance and reports from each of the Board's Committees. I hope these may help to answer some of your questions about the Board and its activities during the year. You can download the Annual Report from www.bp.com/annualreport.

At the meeting we will also discuss the election of our three new Directors, the re-election of existing Directors, and the Directors' Remuneration Report. You will find biographies of our Directors on pages 5 to 12 of the Notice and the Directors' Remuneration Report can be found in the BP Annual Report and Form 20-F 2011.

The votes of all shareholders count, whether they attend the meeting or not. If you cannot attend the meeting I would urge you to appoint and instruct a proxy to vote on your behalf. The Board recommends that you support all of the Resolutions put before you. May I also invite you to visit our website www.bp.com where throughout the year you can find up to date information on the Company and its activities. As a shareholder you may also find our investors section of interest. In particular, the page www.bp.com/shareholders contains information about BP shares, dividends and managing your share account.

On behalf of the Board, I look forward to welcoming you to BP's Annual General Meeting 2012.

Carl-Henric Svanberg Chairman 28 February 2012

www.bp.com/annualreport

Shareholder documents are now available to view or download on our website using the above link. Please note that no material on the BP website, other than the items identified as BP Annual Report and Form 20-F 2011, and BP Summary Review 2011, forms any part of that Report or that Review. The time taken to access these documents will depend on your internet connection.

www.bp.com/agm

Information about the AGM and voting is available to view or download on our website using the above link. You can view or download the Notice of the BP Annual General Meeting 2012, vote your shares and register to watch the AGM webcast. You can also sign up to receive an email notification that documents are available instead of receiving a paper card.

If you prefer you can use these direct links:

www.bp.com/notice

www.bp.com/evoting

www.bp.com/agm/webcast

www.bp.com/edelivery

You can also vote your shares by completing and returning the enclosed proxy card. The deadline for receipt of voting instructions is 5.30 pm on Tuesday, 10 April 2012.

Paper copies

If you would like to receive paper copies of any of the documents listed above, for this year and in the future, please contact the BP Registrar. Before calling please ensure that you have your 11-digit shareholder reference number (URN) to hand. This number can be found on the enclosed proxy form and is the last 11 digits of the 25-digit number quoted.

BP Registrar:

Equiniti, Aspect House, Spencer Road Lancing, West Sussex BN99 6DA Freephone 0800 701 107 (UK only) Tel +44 (0) 121 415 7005 (outside the UK)

This document is important and requires your immediate attention.

This card is formal notification to you that shareholder documents are now available online. It does not contain sufficient information to allow for an understanding of the proposals contained in the shareholder documents and should not be regarded as a substitute for reading the documents. All shareholders should read the documents made available online before voting at www.bp.com/evoting or completing and returning the enclosed proxy card, or attending the Annual General Meeting.