Stocks Energy MPLX

NYSE · Energy

Mplx LP (MPLX)

Mplx LP brought in $13.2B of revenue over the twelve months to June 30, 2026, up 8.7% from a year earlier. Net income was $4.7B, a net margin of 35.7%. Operating cash flow minus capital spending left $4.1B of free cash flow in fiscal 2025. At June 30, 2026 it held $1B in cash against $26B of debt. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on August 4, 2026.

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What Mplx LP does

MPLX operates midstream energy infrastructure, including crude oil and refined product pipelines, river transportation barges, inland marine terminals, storage caverns, and natural gas gathering and processing systems. It primarily serves refining and logistics companies, transporting and processing hydrocarbons across the United States. Its shares trade on NYSE under the ticker MPLX.

Revenue and profit by year

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Full financial statements: income, balance sheet and cash flow

Where MPLX ranks in Energy

Latest fiscal year of every company in the sector with the figure reported. Revenue is ranked among companies reporting in US dollars; growth and margins among companies with at least 10 million of revenue. Energy

Latest SEC filings

What Mplx LP has filed recently, newest first. Each links to the original document on SEC EDGAR.

1. August 24, 2026
   Other event 8-K
2. August 11, 2026
   Securities offering prospectus 424B5
3. August 10, 2026
   Offering term sheet FWP
4. August 10, 2026
   Securities offering prospectus 424B5
5. August 4, 2026
   Quarterly report 10-Q · period to June 30, 2026Revenue rose 10% to $3.3B versus the same quarter last year; net income rose 2.8% to $1.1B.
6. August 4, 2026
   Quarterly results 8-K
7. May 6, 2026
   Shelf registration to sell securities S-3ASR
8. May 5, 2026
   Quarterly report 10-Q · period to March 31, 2026Revenue fell 2.8% to $3B versus the same quarter last year; net income fell 19% to $911M.
9. May 5, 2026
   Quarterly results 8-K
10. April 13, 2026
    Quarterly results 8-K

Recent insider filings (Forms 3, 4 and 144): 10, the latest on August 18, 2026. Insider transactions on SEC

Insider trades

What the people running Mplx LP did with its shares, from the Form 4 filings they must send the SEC within two business days.

No insider bought or sold shares on the open market in the last 90 days. The 7 reported changes were pay in shares, option exercises, shares withheld for tax or gifts.

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns MPLX

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

No holder of 5% or more has filed about this company in that window.

Largest institutional holders

No Form 13F positions imported for this company yet.

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

14 insiders reported holding 1,115,702 shares in total, about $64.3M at the last price.

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about MPLX

What does Mplx LP do?

MPLX operates midstream energy infrastructure, including crude oil and refined product pipelines, river transportation barges, inland marine terminals, storage caverns, and natural gas gathering and processing systems. It primarily serves refining and logistics companies, transporting and processing hydrocarbons across the United States. Its shares trade on NYSE under the ticker MPLX.

Is Mplx LP profitable?

Yes. Over the twelve months to June 30, 2026 it reported net income of $4.7B on revenue of $13.2B, a net margin of 35.7%.

How much revenue does Mplx LP make?

Over the twelve months to June 30, 2026 Mplx LP reported revenue of $13.2B. That is 8.7% more than a year earlier.

When did Mplx LP last report?

Its most recent periodic report is the quarterly report (10-Q) filed on August 4, 2026. It covers the period to June 30, 2026. Its newest filing of any kind is the other event from August 24, 2026.

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Where the numbers come from

Financial figures are the values Mplx LP tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.