Analyze Portfolio
NYSE · Energy

MPLX LP (MPLX)

As-reported financials and recent SEC filings for MPLX LP, latest fiscal period FY2025. Financial statements come straight from the company’s EDGAR filings; valuation figures such as P/E and market cap use market data.

About MPLX LP

MPLX LP is a master limited partnership that owns and operates midstream energy infrastructure and logistics assets across the United States. The company provides services in two main segments: Crude Oil and Products Logistics, which involves gathering, transportation, storage, and distribution of crude oil, refined products, and renewables; and Natural Gas and NGL Services, which includes gathering, treating, processing, fractionation, and transportation of natural gas and natural gas liquids. MPLX serves customers including its sponsor, Marathon Petroleum Corporation, and various producers in major U.S. oil and gas resource plays.

Snapshot

Revenue
$9.73B
Revenue growth (YoY)
5.8%
Net income
$4.95B
Diluted EPS
Gross margin
Operating margin
61.1%
Net margin
50.9%
FCF margin
42.2%
ROE
P/E (TTM)
12.6×
Market cap
$59.22B
Debt / equity

Fundamentals are from SEC filings. P/E and market cap are derived from recent market prices, refreshed on a rolling basis (typically within the past week).

What changed at Mplx

  • Revenue grew 5.8% to $9.7B in FY2025, in line with the 5.2% the year before.
  • Operating margin is 61.1% in FY2025, +11.3 pp against 49.8% in FY2021.
  • Most recent quarter Q1 FY2026: revenue $2.3B, down 4.5% from Q1 FY2025.
  • Free cash flow was $4.1B in FY2025, 42.2% of revenue.
  • Net income rose 13.7% to $5.0B in FY2025.

Computed from the as-reported figures in the statements below. A change we cannot state from filed figures is left out rather than estimated.

Peer comparison

Where Mplx’s fundamentals sit among the 125 Energy companies. Each figure is ranked only against peers that report it, from lowest (left) to highest (right).

Operating margin61.1%
97th percentile of 104
Net margin50.9%
98th percentile of 120
FCF margin42.2%
99th percentile of 69
Revenue growth (YoY)+5.8%
60th percentile of 122
P/E (TTM)12.6×
26th percentile of 85
Short interest5.74d
58th percentile of 123

Mplx’s FCF margin of 42.2% ranks in the 99th percentile of the 69 Energy companies reporting it. Mplx’s net margin of 50.9% ranks in the 98th percentile of the 120 Energy companies reporting it. Mplx’s operating margin of 61.1% ranks in the 97th percentile of the 104 Energy companies reporting it.

No open-market insider transactions recorded in the last 90 days. For context, about 16% of companies in the universe saw any open-market insider buying in the same window. Browse insider activity →

Percentiles describe where a figure sits among sector peers reporting it (100th = highest). They are position within a peer group, not a rating, and not investment advice. Short interest ranking uses days to cover from FINRA Consolidated Short Interest data; FINRA is the owner and source of that data, included at no additional charge.

Institutional ownership

Held by 1 of the superinvestors we track (plus 1 quant / multi-strat book), based on each investor’s most recent 13F (latest Q1 2026).

Conviction investors
1
+1 quant / multi-strat
Initiated / added
0
0 new, 0 added
Reduced / exited
2
2 trimmed, 0 exited
Combined position
$29.0M
reported long value
InvestorAs ofPosition valueSharesChange
AppaloosaQ1 2026$28.7M502.5KReduced
Citadel AdvisorsquantQ1 2026$299,3895.2KReduced

From quarterly Form 13F filings, which can be up to 45 days delayed. Long US-listed positions only: excludes short positions, options, cash, bonds, and non-US holdings, so this is not a manager’s complete portfolio. Counts are of the investors we track, not all institutions. Not investment advice.

Short interest

Total shares sold short as of each twice-monthly FINRA settlement. Rising short interest means more investors are positioned against the stock; days to cover estimates how many trading days of average volume that position represents.

Shares short
7.1M
settled 2026-07-15
Change vs prior
+18.9%
vs previous settlement
Days to cover
5.74
at avg daily volume
Avg daily volume
1.2M
FINRA reported
SettlementShares shortChangeDays to cover
2026-07-157.1M+18.9%5.74
2026-06-306.0M-10.1%4.29
2026-06-156.6M+3.0%4.38
2026-05-296.5M-2.8%3.84
2026-05-156.6M-5.6%2.34
2026-04-307.0M-13.7%2.90
2026-04-158.2M+4.5%4.07
2026-03-317.8M+2.0%4.64

Source: FINRA Consolidated Short Interest. FINRA is the owner and source of the FINRA-supplied data, which is included at no additional charge for your own personal or professional use; republishing or redistributing it is not permitted. Settlement dates are shown; FINRA publishes each settlement about nine business days later, so the latest figure can be two to four weeks old. Not presented as a percentage of float. No FINRA endorsement of this product is implied. Not investment advice.

Income statement (as reported)

 FY2025FY2024FY2023FY2022FY2021
Revenue$9.73B$9.19B$8.73B$8.92B$8.02B
Gross profit
Operating income$5.94B$5.29B$4.90B$4.91B$3.99B
Net income$4.95B$4.36B$3.97B$3.98B$3.11B
Diluted EPS

Figures as reported to the SEC. Underlined values link to the filing they came from; dotted values are calculated by us from reported figures; “adj” means restated for a stock split (hover to see the figure as filed). Full methodology.

Balance sheet (as reported)

 FY2025FY2024FY2023FY2022FY2021
Cash and equivalents$2.14B$1.52B$1.05B$238.0M$13.0M
Current assets$3.99B$3.28B$2.81B$1.91B$1.51B
Total assets$43.01B$37.51B$36.53B$35.66B$35.51B
Current liabilities$3.25B$3.23B$2.62B$2.40B$3.35B
Long-term debt$24.15B$19.25B$19.30B$18.81B$18.07B
Total liabilities$28.48B$23.50B$22.95B$22.15B$22.49B
Total equity

Figures as reported to the SEC. Underlined values link to the filing they came from; dotted values are calculated by us from reported figures; “adj” means restated for a stock split (hover to see the figure as filed). Full methodology.

Cash flow (as reported)

 FY2025FY2024FY2023FY2022FY2021
Operating cash flow$5.91B$5.95B$5.40B$5.02B$4.91B
Capital expenditure$1.81B$1.06B$937.0M$806.0M$529.0M
Free cash flow$4.10B$4.89B$4.46B$4.21B$4.38B

Figures as reported to the SEC. Underlined values link to the filing they came from; dotted values are calculated by us from reported figures; “adj” means restated for a stock split (hover to see the figure as filed). Full methodology.

Quarterly trend (as reported)

QuarterRevenueRevenue YoYNet incomeDiluted EPS
Q1 FY2026$2.35B-4.5%$922.0M
Q4 FY2025$2.45B1.4%$1.20B
Q3 FY2025$2.46B4.9%$1.55B
Q2 FY2025$2.36B4.5%$1.06B
Q1 FY2025$2.46B13.3%$1.14B
Q4 FY2024$2.42B7.6%$1.11B
Q3 FY2024$2.35B2.7%$1.05B
Q2 FY2024$2.25B8.6%$1.19B

Latest 8 reported quarters, from company XBRL filings on SEC EDGAR.

Company facts

ExchangeNYSE
SectorEnergy
SIC industryPipe Lines (No Natural Gas)
Fiscal year endDecember 31
Latest fiscal periodFY2025
SEC filings since2016
SEC CIK1552000

Recent SEC filings

10-K2026-02-26
View on EDGAR →
10-K2025-02-27
View on EDGAR →
10-Q2026-05-05
View on EDGAR →
10-Q2025-11-04
View on EDGAR →
10-Q2025-08-05
View on EDGAR →
10-Q2025-05-06
View on EDGAR →
8-K2026-05-05
View on EDGAR →
8-K2026-04-13
View on EDGAR →

Largest Energy peers

All Energy companies →

Monitor MPLX

Get an alert when Mplx files something material, see which superinvestors own it, and ask its filings a question with cited answers.

Monitor MPLX free

Includes one free filing-grounded research answer. Or check your whole portfolio, no account needed.

Data sourced from SEC EDGAR (public domain). Figures are as-reported and may be unaudited or restated; verify against the source filing before relying on them. Informational only. Not investment advice.