Common Units Representing Limited Partnership Interests
- Symbol
- MPLX
- Exchange
- NYSE
- Classification
- UNIT
- Status
- Current
Current Report · Items 8.01, 9.01 · 8-K
MPLX LP
MPLXNYSEEQUITYCurrent
Other Events
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. 333-295600): Underwriting Agreement, dated as of August 10, 2026, by and among the Issuer, MPLX GP LLC, the general partner of the Issuer, and each of TD Securities (USA) LLC, Goldman Sachs & Co. LLC, J.P.…
Company context
Current securities
Historical securities (1)
Registered securities in this filing
MPLX LP · 8-K · Filed 2026-08-24
Disclosure sections
Item 8.01Item 8.01 - Other Events
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. 333-295600):
Underwriting Agreement, dated as of August 10, 2026, by and among the Issuer, MPLX GP LLC, the general partner of the Issuer, and each of TD Securities (USA) LLC, Goldman Sachs & Co. LLC, J.P. Morgan Securities LLC, SMBC Nikko Securities America, Inc., and Wells Fargo Securities, LLC, acting as representatives of the several underwriters named therein;
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Thirty-Eighth Supplemental Indenture, dated as of August 24, 2026, by and between the Issuer and The Bank of New York Mellon Trust Company, N.A., as Trustee (including Form of Note);
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Thirty-Ninth Supplemental Indenture, dated as of August 24, 2026, by and between the Issuer and The Bank of New York Mellon Trust Company, N.A., as Trustee (including Form of Note);
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Fortieth Supplemental Indenture, dated as of August 24, 2026, by and between the Issuer and The Bank of New York Mellon Trust Company, N.A., as Trustee (including Form of Note); and
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Opinion of Jones Day.
Filed exhibits (3)
EX-4.1 3 d178331dex41.htm EX-4.1 EX-4.1 Exhibit 4.1 THIRTY-EIGHTH SUPPLEMENTAL INDENTURE THIS THIRTY-EIGHTH SUPPLEMENTAL INDENTURE, dated as of August 24, 2026 (this “Supplemental Indenture”), is between MPLX LP, a limited partnership duly formed and existing under the laws of the State of Delaware (the “Partnership”), and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”). WITNESSETH WHEREAS, pursuant to the Senior Indenture, dated as of February 12, 2015 (the “Base Indenture” and, as amended and supplemented to the date hereof, the “Indenture”), between the Partnership and the Trustee, the Partnership may from time to time issue and sell Debt Securities in one or more series; WHEREAS, the Partnership desires to create and authorize a new series of Debt Securities entitled “4.700% Senior Notes due 2029” (the “Notes”), limited initially to $1,250,000,000 in aggregate principal amount, and to provide the terms and conditions upon which the Notes are to be executed, registered, authenticated, issued and delivered, the Partnership has duly authorized the execution and delivery of this Supplemental Indenture; WHEREAS, …
Open exhibit ↗EX-4.2 4 d178331dex42.htm EX-4.2 EX-4.2 Exhibit 4.2 THIRTY-NINTH SUPPLEMENTAL INDENTURE THIS THIRTY-NINTH SUPPLEMENTAL INDENTURE, dated as of August 24, 2026 (this “Supplemental Indenture”), is between MPLX LP, a limited partnership duly formed and existing under the laws of the State of Delaware (the “Partnership”), and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”). WITNESSETH WHEREAS, pursuant to the Senior Indenture, dated as of February 12, 2015 (the “Base Indenture” and, as amended and supplemented to the date hereof, the “Indenture”), between the Partnership and the Trustee, the Partnership may from time to time issue and sell Debt Securities in one or more series; WHEREAS, the Partnership desires to create and authorize a new series of Debt Securities entitled “5.000% Senior Notes due 2032” (the “Notes”), limited initially to $500,000,000 in aggregate principal amount, and to provide the terms and conditions upon which the Notes are to be executed, registered, authenticated, issued and delivered, the Partnership has duly authorized the execution and delivery of this Supplemental Indenture; WHEREAS, the …
Open exhibit ↗EX-4.3 5 d178331dex43.htm EX-4.3 EX-4.3 Exhibit 4.3 FORTIETH SUPPLEMENTAL INDENTURE THIS FORTIETH SUPPLEMENTAL INDENTURE, dated as of August 24, 2026 (this “Supplemental Indenture”), is between MPLX LP, a limited partnership duly formed and existing under the laws of the State of Delaware (the “Partnership”), and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”). WITNESSETH WHEREAS, pursuant to the Senior Indenture, dated as of February 12, 2015 (the “Base Indenture” and, as amended and supplemented to the date hereof, the “Indenture”), between the Partnership and the Trustee, the Partnership may from time to time issue and sell Debt Securities in one or more series; WHEREAS, the Partnership desires to create and authorize a new series of Debt Securities entitled “5.500% Senior Notes due 2036” (the “Notes”), limited initially to $500,000,000 in aggregate principal amount, and to provide the terms and conditions upon which the Notes are to be executed, registered, authenticated, issued and delivered, the Partnership has duly authorized the execution and delivery of this Supplemental Indenture; WHEREAS, the Notes ar…
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