What is the 13F Pro Quality Score for MPLX?

13F Pro ranks MPLX LP (MPLX) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View MPLX's current score at https://13fpro.ai/company/MPLX (free sign-up required for the full ranking).

Which hedge funds own the most MPLX stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of MPLX include ALPS ADVISORS, Invesco Ltd., Blackstone. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/company/MPLX as soon as new 13F filings post.

Where does 13F Pro source MPLX data?

All MPLX LP fundamentals and ownership data come directly from SEC EDGAR. MPLX LP files with the SEC under CIK 1552000. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is MPLX in?

MPLX LP (MPLX) is classified in the Energy sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/energy.

What drives MPLX's revenue?

Per MPLX LP's latest 10-Q filed with the SEC on 2026-08-04, the biggest revenue drivers are: Crude Oil and Products Logistics ($1,688M, +3% YoY); Natural Gas and NGL Services ($1,624M, +19% YoY). Figures are extracted from the filing text and machine-verified against the document. Full breakdown at https://13fpro.ai/company/MPLX.

What are MPLX's largest expenses?

MPLX LP's latest 10-Q reports these as the largest expense items: Purchased product costs ($587M, +36% YoY); Cost of revenues ($405M, +10% YoY); Depreciation and amortization ($365M, +13% YoY). Sourced directly from SEC EDGAR filing text for Q2 FY2026 (quarter ended June 30, 2026).

How often is MPLX research updated on 13F Pro?

MPLX's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

MPLX LP(MPLX)Stock Analysis

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13F Pro Quality Score

70.0/100

Rank #232 of 2,960 stocksTOP 10%

View Energy peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Nov 14, 2026.

Revenue Growth

51.0/100

Profitability

89.6/100

Balance Sheet

85.6/100

Earnings Quality

27.7/100

Free Cash Flow

78.9/100

Institutional Flow

40.3/100

Revenue Scale

88.9/100

Dilution Risk

94.7/100

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Why MPLX Scores 70/100

exact factor attribution · 2026-09-10

MPLX's composite is driven by profitability and scale, held back by earnings quality. Bars show each factor's exact push vs. a median company, using the same weights the ranking engine applies.

Profitability

+5.9 pts

90th pct

Scale

+5.8 pts

89th pct

Free cash flow

+4.3 pts

79th pct

Capital efficiency

+3.6 pts

86th pct

Shareholder dilution

+2.2 pts

95th pct

Earnings growth

+0.6 pts

63th pct

Revenue growth

+0.2 pts

51th pct

Institutional flow

-0.5 pts

40th pct

Earnings quality

-2.2 pts

28th pct

▲1

Latest change (2026-08-04): 77 → 78 · ↑ Revenue growth 29→41; despite ↓ Earnings growth 56→45

Factor percentiles are cross-sectional ranks across the ~2,800-stock scored universe, computed from SEC EDGAR filings. Not investment advice.

MPLX Stock Analysis & AI Quality Score

Data updated 2026-09-10

AI stock analysis and institutional research for MPLX LP (MPLX), a Energy sector company. 13F Pro's AI-powered ranking engine scores MPLX at 70.0/100 on a 32-signal composite quality model, placing it at rank #232 of 2,960 stocks — the top 10% of the AI-ranked universe. MPLX scores in the top quartile across profitability (89.6), revenue scale (88.9), balance sheet strength (85.6). Areas of concern include earnings quality (27.7), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q2 2026), MPLX LP reports quarterly revenue of $3.3B, net income of $1.1B, an operating margin of 41.6%. Top institutional holders of MPLX by reported 13-F value include ALPS ADVISORS, Invesco Ltd., Blackstone, based on the most recent SEC filings. MPLX trades on the NYSE exchange and files with the SEC under CIK 1552000. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate MPLX daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for MPLX LP directly from SEC EDGAR. MPLX LP's 13F Pro composite quality score has ranged between 50 and 78 since 2021, currently 70.0 — an improving long-term trajectory across 68 quarterly and live scoring snapshots.

✦

Fun facts about MPLX LP

Quirks, history, and lore behind MPLX — the kind of stuff that makes a stock memorable.

1
The Basics
A midstream energy company structured as a master limited partnership · listed on the NYSE · headquartered in Ohio.
2
The Numbers
It operates roughly 10,000 miles of pipelines and has a market cap in the tens of billions — not bad for a company most people have never heard of at the gas station.
3
The History
Formed in 2012 as a way to spin out pipeline and terminal assets from its parent refiner, it went public to let investors capture steady fee-based cash flows without the drama of oil prices.
4
The Secret
Its business model is basically a toll road for hydrocarbons — it moves, stores, and distributes crude oil, refined products, and natural gas, collecting fees whether prices rise or fall.
5
The Lore
It is majority-owned and operated by its refining parent, one of the largest petroleum refiners in the U.S., which also controls its general partner — keeping things very much in the family.
6
The Giveaway
Its ticker is basically its parent company's NYSE symbol with an 'X' bolted on — because when Marathon Petroleum needed a midstream MLP, subtlety wasn't the priority.

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What's Driving MPLX's Business? Latest 10-Q Breakdown

AI-extracted from MPLX LP's 10-Q filed 2026-08-04 — Q2 FY2026 (quarter ended June 30, 2026). Every figure is machine-verified against the filing text on SEC EDGAR.

MPLX grew Q2 FY2026 total revenue 10% YoY to $3.31B, led by a 19% jump in Natural Gas and NGL Services on higher Southwest NGL volumes and prices, while operating margin slipped as purchased product costs and interest expense rose faster than revenue.

Biggest Revenue Drivers

Crude Oil and Products Logistics$1,688M+3% YoY

Driven by $77 million from increased rates and fees across all business units, partially offset by $23 million in lower pipeline throughputs.

Natural Gas and NGL Services$1,624M+19% YoY

Higher NGL sales volumes in the Southwest ($124M), higher NGL prices in the Southwest, Marcellus and Southern Appalachia ($101M), and recent acquisitions ($34M), partly offset by the Rockies divestiture ($81M).

Biggest Revenue Drivers

Total revenue: $3.31B+10% YoY

Crude Oil and Products Logistics$1,688M+3% YoY

Driven by $77 million from increased rates and fees across all business units, partially offset by $23 million in lower pipeline throughputs.

Natural Gas and NGL Services$1,624M+19% YoY

Largest Expense Items

Purchased product costs$587M+36% YoY

Higher NGL prices in the Southwest ($91M) and higher NGL volumes in the Southwest ($89M), partially offset by $25 million due to the Rockies divestiture.

Cost of revenues$405M+10% YoY

$24 million of incremental operating costs from recent acquisitions and $11 million of higher net operating and repairs/maintenance costs, partly offset by the Rockies divestiture.

Depreciation and amortization$365M+13% YoY

Incremental depreciation from recent acquisitions and other assets placed in service, partially offset by the Rockies divestiture.

Net interest and other financial costs$289M+24% YoY

Increased borrowings in 2025 to fund acquisitions.

Watch Items from the Filing

MPC-related transactions accounted for 50% of total revenues and other income and 25% of total costs and expenses in Q2 2026, reflecting MPLX's continued dependence on its sponsor and largest customer.
Adjusted FCF after distributions was $(424)M for the quarter and $(968)M year-to-date, as growth capex and unitholder distributions outpaced operating cash flow.
MPLX raised its 2026 growth capital outlook by $500 million to $2.9 billion to accelerate Gulf Coast fractionation and export facility expansion for global NGL demand.
MPLX holds a 9.19% indirect interest in Dakota Access Pipeline; the Army Corps issued a Record of Decision in May 2026, but new litigation may follow the final EIS, with contingent equity exposure of approximately $78 million.

AI-extracted and verified against SEC EDGAR filing text. Not investment advice.

Read the full 10-Q on SEC EDGAR →Share on X

Revenue

Q2 2026

$3.3B

Net Income

Q2 2026

$1.1B

Free Cash Flow

Q2 2026

$877.0M

Operating Margin

Q2 2026

41.6%

Period

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro

Revenue

+8.9% YoY

$13.00BFY 2025

FY22 $11.61BFY23 $11.28BFY24 $11.93BFY25 $13.00B

Net Income

—FY 2025

FY22 $3.94BFY23 $3.93BFY24 —FY25 —

Operating Income

+12.4% YoY

$5.94BFY 2025

FY22 $4.91BFY23 $4.90BFY24 $5.29BFY25 $5.94B

Total Assets

+14.6% YoY

$43.01BFY 2025

FY22 $35.66BFY23 $36.53BFY24 $37.51BFY25 $43.01B

Total Debt

+19.9% YoY

$27.16BFY 2025

FY22 $20.78BFY23 $21.57BFY24 $22.64BFY25 $27.16B

Op. Cash Flow

-0.6% YoY

$5.91BFY 2025

FY22 $5.02BFY23 $5.40BFY24 $5.95BFY25 $5.91B

Free Cash Flow

-16.1% YoY

$4.10BFY 2025

FY22 $4.21BFY23 $4.46BFY24 $4.89BFY25 $4.10B

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$13.00B +8.9%	$11.93B +5.8%	$11.28B -2.9%	$11.61B +15.8%	$10.03B +32.5%	$7.57B
Net Income	—	—	$3.93B -0.4%	$3.94B +28.2%	$3.08B +527.4%	$-720.0M
Operating Income	$5.94B +12.4%	$5.29B +7.9%	$4.90B -0.2%	$4.91B +23.0%	$3.99B +1791.9%	$211.0M
Total Assets	$43.01B +14.6%	$37.51B +2.7%	$36.53B +2.4%	$35.66B +0.4%	$35.51B -2.5%	$36.41B
Total Debt	$27.16B +19.9%	$22.64B +5.0%	$21.57B +3.8%	$20.78B +9.0%	$19.07B -5.3%	$20.14B
Operating Cash Flow	$5.91B -0.6%	$5.95B +10.2%	$5.40B +7.5%	$5.02B +2.2%	$4.91B +8.6%	$4.52B
Free Cash Flow	$4.10B -16.1%	$4.89B +9.6%	$4.46B +5.9%	$4.21B -3.9%	$4.38B +31.3%	$3.34B

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Available Research

13F Pro tracks comprehensive data for MPLX LP including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of MPLX

ALPS ADVISORS INC
$1.6B28,601,592 sh
Invesco Ltd.
$1.0B18,273,448 sh
Blackstone Inc.
$729.9M12,956,943 sh
GOLDMAN SACHS GROUP INC
$638.2M11,329,340 sh
TORTOISE CAPITAL ADVISORS, L.L.C.
$591.5M10,500,469 sh
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
$451.3M8,011,582 sh
KAYNE ANDERSON CAPITAL ADVISORS LP
$330.3M5,862,925 sh
Energy Income Partners, LLC
$303.1M5,380,295 sh
MORGAN STANLEY
$297.2M5,275,829 sh
UBS Group AG
$296.3M5,259,274 sh

Fund	Value	Shares
ALPS ADVISORS INC	$1.6B	28,601,592
Invesco Ltd.	$1.0B	18,273,448
Blackstone Inc.	$729.9M	12,956,943
GOLDMAN SACHS GROUP INC	$638.2M	11,329,340
TORTOISE CAPITAL ADVISORS, L.L.C.	$591.5M	10,500,469
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	$451.3M	8,011,582
KAYNE ANDERSON CAPITAL ADVISORS LP	$330.3M	5,862,925
Energy Income Partners, LLC	$303.1M	5,380,295
MORGAN STANLEY	$297.2M	5,275,829
UBS Group AG	$296.3M	5,259,274

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Is MPLX a good stock to buy?

13F Pro's AI-powered analysis of MPLX LP (MPLX) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Energy sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for MPLX are available on the MPLX stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing. MPLX is classified as a large company.

Which hedge funds own MPLX?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling MPLX. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of MPLX LP's investment landscape.