MPLX LP

Day range

$58.10 – $59.23

Open

$58.43

Prev close

$58.18

Volume

982.4K

Market cap

$58.99B

Shares out

1.01B

P/E

12.49

P/S

5.03

P/B

4.21

P/FCF

17.68

ROE

33.7%

ROA

11.0%

Debt/Equity

1.85

Div yield

7.21%

As of Oct 22, 2026

• Equity activityAug 24, 2026

  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

• Debt activityApr 13, 2026

  On April 7, 2026, MPLX LP entered into a $2.5 billion, five-year Revolving Credit Agreement with Wells Fargo Bank, National Association, as administrative agent... The New MPLX Credit Agreement provides for a $2.5 billion unsecured revolving credit facility that matures on April 7, 2031.

• Executive leadershipMar 18, 2026

  On March 16, 2026, MPLX GP LLC appointed Erin M. Brzezinski as Vice President and Controller of MPLX GP, effective April 1, 2026. In this capacity, Ms. Brzezinski will be the Partnership's principal accounting officer.

• Equity activityFeb 12, 2026

  Underwriting Agreement, dated as of February 5, 2026, by and among the Issuer, MPLX GP LLC, the general partner of the Issuer, and each of Citigroup Global Markets Inc., Barclays Capital Inc., MUFG Securities Americas Inc., and RBC Capital Markets, LLC, acting as representatives of the several underwriters named therein

• Board of directorsDec 18, 2025

  Ms. Khoury will succeed John J. Quaid, who will cease service as a member of the Board on the Effective Date.

• MPCMARATHON PETROLEUM CORPORATION-0.45%
• ETEnergy Transfer LP Common Units+2.05%
• EPDEnterprise Products Partners L.P.+1.53%
• AMAntero Midstream Corporation Common Stock+1.16%
• PAAPlains All American Pipeline, L.P. Common Units representing Limited Partner Interests+2.82%
• PAGPPlains GP Holdings, L.P. Class A Units representing Limited Partner Interests+2.42%
• OKEOneok, Inc.+2.06%
• WESWestern Midstream Partners, LP+1.51%

Days to cover

4.2

Short interest

6.69M

Avg volume

1.59M

As of Sep 30, 2026 · reported to FINRA twice monthly.

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