UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
| Item 8.01 | Other Events. |
MPLX LP (the “Issuer”) is filing herewith the following exhibits to its Registration Statement on Form S-3 (Registration No. 333-271922):
| 1. | Underwriting Agreement, dated as of August 7, 2025, by and among the Issuer, MPLX GP LLC, the general partner of the Issuer, and each of J.P. Morgan Securities LLC, Goldman Sachs & Co. LLC, BofA Securities, Inc., Mizuho Securities USA LLC, TD Securities (USA) LLC and Wells Fargo Securities, LLC, acting as representatives of the several underwriters named therein; |
| 2. | Thirty-Second Supplemental Indenture, dated as of August 11, 2025, by and between the Issuer and The Bank of New York Mellon Trust Company, N.A., as Trustee (including Form of Note); |
| 3. | Thirty-Third Supplemental Indenture, dated as of August 11, 2025, by and between the Issuer and The Bank of New York Mellon Trust Company, N.A., as Trustee (including Form of Note); |
| 4. | Thirty-Fourth Supplemental Indenture, dated as of August 11, 2025, by and between the Issuer and The Bank of New York Mellon Trust Company, N.A., as Trustee (including Form of Note); |
| 5. | Thirty-Fifth Supplemental Indenture, dated as of August 11, 2025, by and between the Issuer and The Bank of New York Mellon Trust Company, N.A., as Trustee (including Form of Note); and |
| 6. | Opinion of Jones Day. |
| Item 9.01 | Financial Statements and Exhibits. |
(d) Exhibits.
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 hereunto duly authorized.
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MPLX LP | |||||
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By: | MPLX GP LLC, its General Partner | ||||
| Date: August 11, 2025 | By: | /s/ Molly R. Benson | ||||
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Name: Molly R. Benson | ||||
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Title: Chief Legal Officer and Corporate Secretary | ||||