MPLX LP filings document the disclosure record of a Delaware master limited partnership with common units representing limited partnership interests listed on the New York Stock Exchange. Its reports include 8-K disclosures for operating results and financial condition, exhibits containing earnings releases, and annual reporting on the partnership's midstream energy infrastructure and logistics business.
The filing record also covers capital-structure and financing matters, including revolving credit agreements, underwriting agreements, supplemental indentures, and debt-securities exhibits filed under registration statements. Governance disclosures address MPLX GP LLC as general partner, board and officer changes, compensatory arrangements, shareholder voting matters, material-event reporting, and risk disclosure tied to the partnership's operations and securities.
MPLX LP reports that Bruce L. Niemeyer, a director of its general partner, acquired 1,276.7110 common units in a grant or award on November 1, 2026. His reported direct holdings after the transaction were 1,276.7110 common units. The acquisition was not reported under a Rule 10b5-1 plan.
MPLX LP reported that Micheal G. Dunn, a director of its general partner MPLX GP LLC, acquired 1,276.7110 common units (limited partner interests) on November 1, 2026, as a grant or award. The reported price was $0.00 per unit, and his directly held position after the acquisition was 1,276.7110 common units.
MPLX LP reported third-quarter 2026 net income attributable to MPLX LP of $1.164 billion, versus $1.545 billion a year earlier; revenue and other income was $3.605 billion versus $3.619 billion. The comparison includes a $484 million equity-method investment gain from the 2025 BANGL acquisition, with no comparable gain in 2026. Adjusted EBITDA attributable to MPLX LP was $1.859 billion versus $1.766 billion, and distributable cash flow was $1.537 billion versus $1.468 billion.
Net cash from operating activities was $1.477 billion for the quarter, versus $1.431 billion. MPLX said it increased its quarterly distribution 12.5% for the third consecutive year, to $4.84 per unit annualized. On November 2, 2026, it agreed to sell logistics assets associated with MPC’s St. Paul Park, Minnesota, and Mandan, North Dakota, refineries for $750 million in cash, subject to working-capital and other closing adjustments. Closing is expected in the fourth quarter, pending customary closing conditions and regulatory approvals; the assets’ carrying value was $422 million as of September 30, 2026.
On October 30, 2026, MPLX and MPC amended their revolving loan agreement, raising borrowing capacity from $1.5 billion to $2.5 billion and extending its term to October 30, 2031.
MPLX LP reported third-quarter 2026 net income attributable to MPLX of $1.164 billion, compared with $1.545 billion a year earlier. Adjusted EBITDA attributable to MPLX was $1.859 billion, up 5.3% from $1.766 billion. The quarter included $77 million of incentive-compensation expenses, versus $40 million a year earlier; MPLX said these reduced EBITDA growth by 2%.
Net cash provided by operating activities was $1.477 billion and distributable cash flow was $1.537 billion. MPLX declared a third-quarter distribution of $1.2111 per common unit; its annualized quarterly distribution increased 12.5% for a third consecutive year to $4.84 per unit. Distribution coverage was 1.3x and the leverage ratio was 3.8x.
MPLX announced a $750 million sale of logistics assets associated with MPC’s announced sale of the St. Paul Park and Mandan refineries, expected to close at the end of 2026; proceeds are expected to support growth plans in the Permian and Marcellus. MPLX said it is investing $2.9 billion in organic growth capital, with over 90% allocated to natural gas and NGL infrastructure. Harmon Creek III began operations in August 2026.
Bruce L. Niemeyer, a director of MPLX GP LLC, the general partner of MPLX LP, reported 0 common units (limited partner interests) held directly as of November 1, 2026. The entry records a holding rather than a purchase or sale.
MPLX LP reported a direct holding of 0 common units (limited partner interests) for Micheal G. Dunn, a director of its general partner, MPLX GP LLC, as of November 1, 2026.
MPLX LP increased the board of directors of its general partner, MPLX GP LLC, to 12 members and elected Micheal G. Dunn and Bruce L. Niemeyer as directors, effective November 1, 2026. Dunn has over 35 years of experience in the natural gas and midstream industries and retired in 2025 as executive vice president and chief operating officer of The Williams Companies. Niemeyer’s career in the energy industry spans more than 40 years; at Chevron, he previously led its Western Hemisphere upstream business as President, Americas Exploration and Production. As non-management directors, both will receive compensation in the same manner as the board’s other non-management directors.
MPLX LP (MPLX) filed a current report describing exhibits related to its existing Registration Statement on Form S-3 (Registration No. 333-295600). The filing lists an Underwriting Agreement dated August 10, 2026 among MPLX LP, its general partner MPLX GP LLC, and several underwriters, including 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 underwriters. It also includes the Thirty-Eighth, Thirty-Ninth, and Fortieth Supplemental Indentures, each dated August 24, 2026, between MPLX LP and The Bank of New York Mellon Trust Company, N.A., as trustee, along with a legal opinion and related consent from Jones Day.
MPLX LP (symbol MPLX) reports that a director received an equity award of 1,232.166 Common Units (Limited Partner Interests) on August 14, 2026. The units were acquired as a grant or award at a stated price of $0.0000 per unit, reflecting non-cash compensation.
After this award, the director holds 69,313.2300 MPLX common units directly. In addition, 68,497.0000 units are held indirectly through a revocable trust identified as the Garry L. and Kathleen J. Peiffer Trust, created on April 24, 2026.
MPLX LP (MPLX) reported an insider equity award for director Walker Ray N Jr. He received a grant of 81.939 Common Units (Limited Partner Interests) on 2026-08-14 at a stated price of $0.0000 per unit, increasing his directly held units to 4,609.294 following the transaction. The award is characterized as a grant or other acquisition rather than an open-market purchase, and the Rule 10b5-1 plan checkbox was not selected.