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 director Ray N. Walker Jr. reported an equity award of 32.127 common units of limited partner interests on February 17, 2026. The units were granted at a price of $0.00 per unit as a grant/award acquisition, not an open-market purchase. After this award, his directly held stake increased to 1,743.699 common units.
MPLX LP director John P. Surma received an award of 1,505.132 common units on February 17, 2026. The units, representing limited partner interests, were acquired as a grant at a stated price of $0.0000 per unit. After this award, his directly held units total 89,190.259.
MPLX LP director J. Michael Stice received an equity grant of common units. He was awarded 981.957 common units (limited partner interests) of MPLX LP on February 17, 2026, recorded as a grant or other acquisition with no cash price shown per unit.
After this grant, Stice directly holds 53,295.154 common units. In addition, 700 common units are held indirectly through The Mike Stice Trust, reflecting a separate indirect ownership position rather than a new transaction.
MPLX LP director Frank M. Semple reported an equity award of common units. On February 17, 2026, he acquired 1,071.818 common units of MPLX LP as a grant, bringing his directly held units to 58,172.334. Additional common units are reported as indirectly held through several trusts and an LLC.
MPLX LP director Garry L. Peiffer reported an acquisition of common units through an equity award. On February 17, 2026, he received 1,180.524 Common Units (Limited Partner Interests) at a price of $0.0000 per unit, described as a grant or award acquisition.
Following this transaction, Peiffer directly owned 64,072.343 common units. In addition, a revocable trust identified as the Garry L. Peiffer Revocable Trust held an indirect position of 68,497.000 common units, reflecting his beneficial ownership through that trust.
HELMS CHRISTOPHER A reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Christopher A. Helms received an equity grant of 1,285.155 common units of limited partner interests. The award was recorded at a price of $0.0000 per unit, indicating it was a grant rather than an open-market purchase. Following this transaction, Helms directly holds a total of 80,751.097 common units.
Breves Christine S reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Christine S. Breves received an award of 218.103 Common Units (Limited Partner Interests) on February 17, 2026. The award was recorded at a price of $0.0000 per unit, indicating it was a grant rather than an open-market purchase. Following this grant, her directly owned holdings increased to 11,837.457 common units.
MPLX LP filed a current report to add key legal documents to its existing shelf registration on Form S-3 (Registration No. 333-271922). The filing attaches an Underwriting Agreement dated February 5, 2026, and two supplemental indentures dated February 12, 2026, each including a form of note. It also includes a legal opinion and related consent from Jones Day supporting the registration.
MPLX LP is issuing $1,000,000,000 of 5.300% senior notes due 2036 and $500,000,000 of 6.100% senior notes due 2056. The notes are unsecured, unsubordinated obligations of MPLX LP, structurally subordinated to its subsidiaries’ debt, and may be redeemed by MPLX before maturity on stated terms.
The offering is expected to generate about $1,474 million in net proceeds, which MPLX plans to use to repay $1,500 million of 1.750% senior notes maturing in March 2026. As of September 30, 2025, consolidated debt was about $26,007 million, with $2.0 billion of undrawn revolver capacity.
Preliminary unaudited results show revenues and other income of $3,252 million and net income attributable to MPLX of $1,193 million for Q4 2025, and $12,998 million of revenues with $4,912 million of net income for full-year 2025. Adjusted EBITDA attributable to MPLX was $1,804 million for Q4 and $7,017 million for the year, while distributable cash flow attributable to LP unitholders was $1,417 million in Q4 and $5,791 million for 2025.
MPLX LP plans to issue two new series of senior unsecured notes, with interest paid semi-annually, to help refinance existing debt. The partnership intends to use net proceeds to repay $1,500 million of 1.750% senior notes due March 2026 and for general partnership purposes.
Alongside the offering, MPLX released preliminary unaudited 2025 results. For 2025, revenues and other income were $12,998 million and net income attributable to MPLX was $4,912 million. Adjusted EBITDA attributable to MPLX was $7,017 million and distributable cash flow was $5,791 million, supported by $5,909 million of net cash from operating activities.
For Q4 2025, revenues and other income were $3,252 million and net income attributable to MPLX was $1,193 million. Adjusted EBITDA attributable to MPLX was $1,804 million and distributable cash flow attributable to LP unitholders was $1,417 million. As of December 31, 2025, MPLX reported $2,137 million in cash and cash equivalents, $43,005 million of total assets, $25,653 million of total debt and $14,528 million of total equity, with no borrowings outstanding under its $2 billion revolving credit facility or its intercompany loan agreement.