PRELIMINARYSUBJECT TO COMPLETIONDATED JANUARY 31, 2022
On December 19, 2021, BP p.l.c., a public limited company incorporated under the laws of England and Wales (BP), BP Midstream
Partners Holdings LLC, a Delaware limited liability company and indirect wholly owned subsidiary of BP (Holdings), BP Midstream RTMS LLC, a Delaware limited liability company and wholly owned subsidiary of Holdings (Merger
Sub), BP Midstream Partners LP, a Delaware limited partnership (BPMP), and BP Midstream Partners GP LLC, a Delaware limited liability company and the general partner of BPMP (the General Partner), entered into an
Agreement and Plan of Merger (the Merger Agreement). Pursuant to the Merger Agreement, Merger Sub will merge with and into BPMP, with BPMP surviving as an indirect wholly owned subsidiary of BP (the Merger).
Pursuant to the Merger Agreement, each outstanding common unit representing limited partner interests in BPMP (BPMP Common Units)
immediately prior to the effective time of the Merger, other than BPMP Common Units held directly or indirectly by BP and its subsidiaries (all such BPMP Common Units held by persons other than BP or its subsidiaries, the BPMP Public Common
Units, and the holders of such units, the BPMP Public Unitholders), will be converted into, and will thereafter represent only, the right to receive 0.575 (the Exchange Ratio) of one American depositary share of BP,
each representing a beneficial interest in six ordinary shares of BP, par value $0.25 per share (BP ADSs, and the BP ADSs to be issued in the Merger, the Merger Consideration) and following such conversion, such BPMP Public
Common Units will automatically be cancelled and cease to exist (Cancelled or the Cancellation). Immediately following the consummation of the Merger, the interests in BPMP owned by BP and its subsidiaries will remain
outstanding as limited partner interests in the surviving entity, and the General Partner will continue to own the non-economic general partner interest and Incentive Distribution Rights in the surviving
entity.
On December 19, 2021, the board of directors of BP (the BP Board), through its authorized delegates, determined
that the Merger Agreement and the transactions contemplated thereby, including the Merger and the issuance of the Merger Consideration, are advisable, fair and reasonable to and most likely to promote the success of BP for the benefits of its
stockholders as a whole, approved the execution, delivery and performance of the Merger Agreement and the consummation of the transactions contemplated thereby, including the Merger and the issuance of Merger Consideration in the Merger, and
authorized and empowered BP to enter into the Merger Agreement and to consummate the transactions contemplated thereby (including the Merger) on the terms and subject to the conditions set forth in the Merger Agreement.
On December 19, 2021, the conflicts committee (the BPMP Conflicts Committee) of the board of directors of the General Partner
(the GP Board), by unanimous vote, in good faith, (i) determined that the Transaction Documents and the transactions contemplated thereby, including the Merger, are not opposed to the interest of BPMP or the BPMP Public Unitholders,
(ii) approved the Transaction Documents and the transactions contemplated thereby, including the Merger (the foregoing constituting Special Approval as defined in the Partnership Agreement), (iii) approved, on behalf of the GP
Board, the Transaction Documents, the execution, delivery and performance of the Transaction Documents and the transactions contemplated thereby, including the Merger, and (iv) directed, on behalf of the GP Board, that the Merger Agreement and
the transactions contemplated thereby, including the Merger, be submitted to a vote of the holders of BPMP Common Units pursuant to the Partnership Agreement and authorized the holders of the BPMP Common Units to act by written consent pursuant to
the Partnership Agreement.
Pursuant to the Partnership Agreement, the approval of the Merger Agreement and the Merger by BPMP requires
the affirmative vote or consent of the holders of a majority of the outstanding BPMP Common Units (the Required Limited Partner Written Consent). BPMP has entered into a Support Agreement, dated as of December 19, 2021 (the Support
Agreement), with Holdings, pursuant to which Holdings has irrevocably and unconditionally agreed to deliver a written consent covering all of the BPMP Common Units beneficially owned by it in favor of the Merger, the approval of the Merger
Agreement and the transactions contemplated by the Merger Agreement and any other matter necessary or desirable for the consummation of the transactions contemplated by the Merger Agreement (the Support Written Consent), within two
business days following the effectiveness of the registration statement of which this consent statement/prospectus forms a part. As of January 26, 2022, Holdings beneficially owned 56,956,712 BPMP Common Units, which represents approximately 54.4%
of the outstanding BPMP Common Units. Accordingly, the delivery of the Support Written Consent by Holdings will be sufficient to approve the Merger Agreement and the transactions contemplated thereby, including the Merger, on behalf of holders of
the BPMP Common Units (the BPMP Unitholders), without the vote or consent of any of the BPMP Public Unitholders.
The GP Board
has set as the record date (the Record Date) for determining the BPMP Unitholders entitled to execute and deliver written consents with
respect to the Merger. If you were a record holder of outstanding BPMP Common Units as of the close of business on the Record Date, you may complete, date and sign the enclosed written consent and promptly return it to BPMP. See the section titled
Written Consents of BPMP Unitholders beginning on page 22 of this consent statement/prospectus.
This consent
statement/prospectus provides you with detailed information about the proposed Merger and related matters. BP and BPMP both encourage you to read the entire document carefully. In particular, please read Risk
Factors beginning on page 14 of this consent statement/prospectus for a discussion of risks relevant to the Merger, the tax consequences of the Merger and owning the BP ADSs received in the Merger, an investment in BP ADSs and BPs
business following the Merger.
BP ADSs are listed on the New York Stock Exchange (NYSE) under the symbol BP
and BPMP Common Units are listed on the NYSE under the symbol BPMP.
On behalf of the GP Board,
J. Douglas Sparkman
Chairman of the Board of
Directors
BP Midstream Partners GP LLC
NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THE SECURITIES TO BE ISSUED IN CONNECTION
WITH THE MERGER OR DETERMINED THAT THIS CONSENT STATEMENT/PROSPECTUS IS ACCURATE OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
This consent
statement/prospectus is dated , 2022 and is first being mailed to BPMP Unitholders on or about , 2022.