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.
The MPLX LP (NYSE: MPLX) SEC filings page on Stock Titan provides access to the partnership’s regulatory disclosures filed with the U.S. Securities and Exchange Commission. As a large-cap master limited partnership operating midstream energy infrastructure and logistics assets, MPLX uses its SEC filings to report financial results, describe segment performance, document governance changes, and outline material transactions and financing activities.
Key documents for MPLX include annual reports on Form 10-K and quarterly reports on Form 10-Q, which present detailed information on the Crude Oil and Products Logistics and Natural Gas and NGL Services segments, including pipeline and terminal throughput, gathering and processing volumes, and NGL fractionation activity. These reports also discuss non-GAAP measures such as adjusted EBITDA, distributable cash flow, adjusted free cash flow, and leverage ratio, along with reconciliations to the most directly comparable GAAP measures.
MPLX’s current reports on Form 8-K highlight specific events such as quarterly and year-to-date financial results, changes in the board of directors of its general partner, leadership appointments, securities offerings, and the filing of underwriting agreements and supplemental indentures related to senior notes. These filings also reference press releases that provide additional operational and financial context.
On Stock Titan, AI-powered tools can help interpret MPLX’s filings by summarizing lengthy documents, clarifying segment-level disclosures, and highlighting items related to capital structure, distributions, and governance. Users can quickly locate information on MPLX’s debt offerings, board changes, and reported financial metrics without reading every page of each filing. Real-time updates from EDGAR ensure that new 10-K, 10-Q, and 8-K filings, as well as exhibits such as underwriting agreements and indentures, are available as they are posted, supporting more efficient review of MPLX’s regulatory reporting history.
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.
Walker Ray N JR reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Walker Ray N. Jr. received an equity grant of 2,246.989 Common Units (limited partner interests) of MPLX LP on April 30, 2026. The units were awarded at a stated price of $0.00 per unit as his annual 2026 equity retainer award. After this grant, he holds a total of 3,990.688 common units directly.
SURMA JOHN P reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director John P. Surma received an equity grant of 2,579.543 Common Units (limited partner interests) as his annual 2026 equity retainer award. The award was recorded at a price of $0.00 per unit, indicating it was compensation rather than a market purchase.
Following this grant, Surma directly holds a total of 91,769.802 MPLX Common Units. This filing reflects routine board compensation and does not show any open-market buying or selling activity.
STICE J MICHAEL reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director J. Michael Stice received an equity grant of 2,579.543 Common Units (Limited Partner Interests) on an award valued at $0.0000 per unit. This represents his annual 2026 equity retainer award. Following the grant, he directly holds 55,874.697 common units and indirectly holds 700 common units through The Mike Stice Trust.
SEMPLE FRANK M reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Frank M. Semple reported an equity award and updated holdings in common units. He received 2,579.543 common units as his annual 2026 equity retainer award at a stated price of $0.00 per unit, increasing his direct holdings to 60,751.877 units. The filing also lists indirect ownership of MPLX common units through EK Holdings LLC, the Robin Y Semple 2012 Dynasty Trust, and the Frank M Semple Revocable Trust.
Peiffer Garry L. reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Garry L. Peiffer received an equity compensation award of 2,246.989 common units of MPLX LP on April 30, 2026. The award was granted at $0.00 per unit as his annual 2026 equity retainer, so it was not an open-market purchase.
After this grant, Peiffer directly holds 66,319.332 common units. Separately, 68,497 common units are reported as indirectly held through 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 an equity grant of 2,246.989 common units as part of his annual 2026 equity retainer award. The grant was reported at a price of $0.00 per unit, reflecting a compensation award rather than a market purchase. Following this award, Helms directly holds a total of 82,998.086 MPLX common units.
Breves Christine S reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Christine S. Breves received an equity grant of 2,246.989 common units (limited partner interests) as her annual 2026 equity retainer award. The grant was reported at a price of $0.00 per unit, indicating it is compensation rather than an open-market purchase. Following this award, she directly holds a total of 14,084.446 MPLX common units.