Welcome to our dedicated page for Mplx Lp SEC filings (Ticker: MPLX), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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.
Walker Ray N JR reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Ray N. Walker Jr. received a grant of 78.436 Common Units (Limited Partner Interests) on May 15, 2026 as a non-cash award. Following this grant, his directly held position increased to 4,069.124 common units, reflecting routine equity-based compensation rather than an open-market purchase.
SURMA JOHN P reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director John P. Surma received a grant of 1,656.317 Common Units (limited partner interests) on May 15, 2026. The units were awarded at a reported price of $0.00 per unit as compensation, increasing his direct holdings to 93,426.119 units.
MPLX LP director J. Michael Stice reported an equity award of 1,098.213 common units. The units were acquired at a reported price of $0.00 per unit as a grant or award, bringing his directly held common units to 56,972.910. He also reports indirect ownership of 700 common units through The Mike Stice Trust.
MPLX LP director Frank M. Semple reported a grant of 1,194.074 Common Units (Limited Partner Interests) on May 15, 2026. The units were acquired at a stated price of $0.00 per unit as a grant or award, indicating compensation rather than an open-market purchase.
After this transaction, Semple directly holds 61,945.951 MPLX common units. He also has indirect interests in additional MPLX units held through entities, including EK Holdings LLC, the Robin Y Semple 2012 Dynasty Trust, and the Frank M Semple Revocable Trust, each with reported unit balances as of the same date.
Peiffer Garry L. reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Garry L. Peiffer reported receiving additional common units as equity compensation and updated his holdings. He was granted 1,303.501 common units of MPLX LP at no cost, bringing his directly held units to 67,622.833. He also reported indirect ownership of 68,497 common units held by the Garry L. Peiffer Revocable Trust.
HELMS CHRISTOPHER A reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Christopher A. Helms received a grant of 1,415.117 Common Units (Limited Partner Interests) on May 15, 2026 at a stated price of $0.00 per unit. After this award, he directly holds a total of 84,413.203 common units.
MPLX LP director Christine S. Breves received an award of 276.829 Common Units (Limited Partner Interests) of MPLX LP on May 15, 2026. The units were granted at a price of $0.0000 per unit as part of a compensation-related grant or award, not an open-market purchase.
After this award, Breves directly holds a total of 14,361.275 common units of MPLX LP. The filing does not report any sales, option exercises, gifts, or tax-withholding transactions, only this single acquisition of additional units.
MPLX LP filed a Form S-3 shelf registration to offer, from time to time after effectiveness, an unlimited number and amount of common units, other classes of units representing limited partner interests and debt securities. The prospectus states net proceeds will be used for general partnership purposes, including repayment or refinancing of debt, acquisitions, working capital, capital expenditures, repurchases and investments in affiliates. Shares outstanding were 1,014,733,719 common units as of April 30, 2026.
MPLX LP reported lower first‑quarter 2026 results versus 2025, with total revenues and other income of $3,038 million compared to $3,124 million a year earlier. Net income attributable to MPLX declined to $912 million from $1,126 million, while Adjusted EBITDA attributable to MPLX slipped to $1,729 million from $1,757 million.
Distributable cash flow was $1,408 million, down from $1,486 million, but still supported significant capital returns, including a declared quarterly distribution of $1.0765 per common unit and $1.1 billion returned via distributions and unit repurchases. Operating cash flow rose to $1,347 million, funding elevated capital expenditures of $665 million and ongoing midstream growth projects.
MPLX LP reported softer first-quarter 2026 results while continuing heavy investment in growth projects. Net income attributable to MPLX was $912 million, down from $1,126 million a year earlier, mainly due to derivatives impacts, higher interest expense, a prior-year non-recurring benefit, and depreciation. Adjusted EBITDA was $1.729 billion versus $1.757 billion, showing relatively stable operating performance.
Distributable cash flow was $1.408 billion, supporting a higher distribution of $1.0765 per common unit and distribution coverage of 1.3x. The leverage ratio stood at 3.7x. MPLX generated $1.347 billion of net cash from operations and spent heavily on growth, with $791 million of growth capital in the quarter.
The Crude Oil and Products Logistics segment modestly increased adjusted EBITDA to $1.111 billion, while Natural Gas and NGL Services declined to $618 million after a non-recurring 2025 benefit and lower NGL prices. MPLX is advancing a $2.4 billion organic growth plan focused on Permian and Marcellus infrastructure, including the Harmon Creek III gas plant, Titan sour gas treating expansion, and multiple large pipeline and fractionation projects expected in service between late 2026 and 2029.