As filed with the Securities and Exchange Commission on March 22, 2005

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

BP p.l.c.

1 St. James’s Square
London SW1Y 4PD, England
(Address of principal executive offices)

BP p.l.c. Medium Term Performance Plan 2005

(Full title of plan)

Table of Contents

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3. Incorporation of Certain Documents By Reference.

     The reports listed below have been filed with or furnished to the Securities and Exchange Commission (“Commission”) by BP p.l.c., (“BP” or the “Company”); and are incorporated herein by reference to the extent not superseded by documents or reports subsequently filed or furnished:

In addition, all Forms 20-F filed by BP pursuant to the Securities Exchange Act of 1934, as amended, certain Reports on Form 6-K furnished by BP (which indicate on their cover pages that they are incorporated herein by reference), after the date of this Registration Statement and prior to the filing of a post-effective amendment to this Registration Statement which indicate that all securities have been sold or which deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference in this Registration Statement and to be a part hereof from the date of filing or furnishing of such documents or reports, to the extent not superseded by documents or reports subsequently filed or made.

Item 4. Description of Securities.

Not applicable.

Item 5. Interest of Named Experts and Counsel.

None.

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Item 6. Indemnification of Directors and Officers.

Article 156 of the registrant’s Articles of Association currently provides:

“Subject to the provisions of and so far as may be consistent with the Statutes, every Director, auditor, Secretary or other officer of the Company shall be entitled to be indemnified by the Company against all costs, charges, losses, expenses and liabilities incurred by him in the execution and/or discharge of his duties and/or the exercise of his powers and/or otherwise in relation to or in connection with his duties, powers or office.”

Section 310 of the Companies Act of 1985 (as amended by Section 137 of the Companies Act of 1989) provides as follows:

“310. Provisions exempting officers and auditors from liability:

(1) This section applies to any provision, whether contained in a company’s articles or in any contract with the company or otherwise, for exempting any officer of the company or any person (whether an officer or not) employed by the company as auditor from, or indemnifying him against, any liability which by virtue of any rule of law would otherwise attach to him in respect of any negligence, default, breach of duty or breach of trust of which he may be guilty in relation to the company.

(2) Except as provided by the following subsection, any such provision is void.

(3) This section does not prevent a company

Section 727 of the Companies Act 1985 provides as follows:

     “727. Power of court to grant relief in certain circumstances:

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 trust, that court may relieve him, either wholly or partly, from his liability on such terms as it thinks fit.

With effect from April 6, 2005, The Companies Act 1985 will be further amended by Sections 19 and 20 of The Companies (Audit, Investigations and Community Enterprise) Act 2004 (the “2004 Act”). In summary, the 2004 Act will permit the Company to provide a director with funds to meet expenditure incurred or to be incurred in defending any criminal or civil proceedings or in connection with an application described in the Companies Act, Section 310(3)(b)(iii) or to do anything to enable a director to avoid incurring such expenditure provided always that the Company does so on such terms that any such loan falls to be repaid or such thing done is discharged no later than on the director’s conviction, the court’s refusal to grant the director relief or on final judgment being rendered against the director.

Item 8. Exhibits.

The following Exhibits are filed herewith unless otherwise indicated:

Item 9. Undertakings.

     (a) The undersigned registrant hereby undertakes:

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     (1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

     (i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;

     (ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement; and

     (iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

     provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed by the registrant pursuant to section 13 or section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement.

     (2) That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

     (3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

     (b) The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to section 13(a) or section 15(d) of the Securities Exchange Act of 1934 that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

     (c) Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act will be governed by the final adjudication of such issue.

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SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of London, England, on March 17, 2005.

POWER OF ATTORNEY

     Each director and officer of the Registrant whose signature appears below hereby constitutes and appoints Daniel B. Pinkert, the agent for service named in the registration statement, and appoints each of The Lord Browne of Madingley, Dr. B. E. Grote, Daniel B. Pinkert, and Roland K. Filippi, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him, and on his behalf and in his name, place and stead, in any and all capacities, to sign, execute and file any amendments to this registration statement on Form S-8 necessary or advisable to enable the registrant to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission in respect thereof, which amendments may make such other changes in this registration statement as such attorney-in-fact deems appropriate, and any subsequent registration statement for the same offering that may be filed under Rule 462(b) under the Securities Act of 1933, as amended.

     Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.

EXHIBIT INDEX