MPLX — what changed in the latest 10-Q
A section-by-section comparison of MPLX's newest periodic SEC filing (10-K/10-Q) against the prior same-form filing: paragraphs added and removed per section, with verbatim excerpts. Purely a deterministic text diff — no similarity scores, no directional read, not investment advice.
Comparing 10-Q · 2026-05-05 vs the prior 10-Q · 2025-11-04
| Section | Outcome | Added | Removed | Minor | Unchanged |
|---|---|---|---|---|---|
| MD&A | Text added/removed | +78 | −110 | ~25 | 70 |
| Market risk (Item 3) | Text added/removed | +2 | −2 | ~7 | 3 |
| Controls & procedures | Text added/removed | 0 | 0 | ~2 | 0 |
| Legal proceedings | Text added/removed | +1 | −1 | ~1 | 2 |
| Risk factors | No material changes reported (points to the 10-K) | — | — | — | — |
| Other information | Text added/removed | 0 | 0 | ~1 | 0 |
Counts are paragraphs; added/removed means text added or removed vs the prior filing — no direction or judgement implied.
Representative excerpts
Up to 5 excerpts of about 300 characters per section, quoted verbatim from the two SEC filings.
MD&A
Text added vs the prior filing · source: 10-Q · 2026-05-05
•increased commodity price volatility and supply disruptions due to the U.S.-Iran conflict and market reactions thereto;
•the ability to realize expected returns or other benefits on anticipated or ongoing projects or planned or recently completed acquisitions or other transactions, including the recently completed acquisitions of Northwind Delaware Holdings LLC and BANGL, LLC;
•compliance costs and uncertainty associated with cap and invest programs or similar arrangements or programs in California or other jurisdictions; and
•our ability to successfully implement our sustainable energy strategy and principles and achieve our ESG plans and goals within the expected timeframe, if at all.
For additional risk factors affecting our business, see the risk factors described in our Annual Report on Form 10-K for the year ended December 31, 2025. We undertake no obligation to update any forward-looking statements except to the extent required by applicable law.
Text removed vs the prior filing · source: 10-Q · 2025-11-04
•our ability to successfully implement our sustainable energy strategy and principles and achieve our ESG goals and targets within the expected timeframe, if at all.
For additional risk factors affecting our business, see the risk factors described in our Annual Report on Form 10-K for the year ended December 31, 2024. We undertake no obligation to update any forward-looking statements except to the extent required by applicable law.
Our Crude Oil and Products Logistics segment gathers, transports, stores and distributes crude oil, refined products, including renewable diesel, and other hydrocarbon-based products. Additionally, the segment markets refined products. The profitability of pipeline transportation operations primaril…
on our pipelines and marine vessels, the throughput at our terminals and refining logistics assets serve MPC and our fuels distribution services are used solely by MPC. We have various long-term, fee-based commercial agreements related to services provided to MPC. Under these agreements, we receive …
Our Natural Gas and NGL Services segment gathers, processes and transports natural gas and transports, fractionates, stores and markets NGLs. NGL and natural gas prices are volatile and are impacted by changes in fundamental supply and demand, as well as market uncertainty, availability of NGL trans…
Market risk (Item 3)
Text added vs the prior filing · source: 10-Q · 2026-05-05
At March 31, 2026, our portfolio of third‑party debt consisted of fixed-rate instruments. The fair value of our fixed-rate debt is relatively sensitive to interest rate fluctuations. Our sensitivity to interest rate declines and corresponding increases in the fair value of our debt portfolio unfavor…
otherwise retire fixed-rate debt at prices above carrying value. Interest rate fluctuations generally do not impact the fair value of borrowings under our MPLX Credit Agreement, but may affect our results of operations and cash flows.
Text removed vs the prior filing · source: 10-Q · 2025-11-04
At September 30, 2025, our portfolio of third‑party debt consisted of fixed-rate instruments and outstanding borrowings, if any, under the MPLX Credit Agreement. The fair value of our fixed-rate debt is relatively sensitive to interest rate fluctuations. Our
sensitivity to interest rate declines and corresponding increases in the fair value of our debt portfolio unfavorably affects our results of operations and cash flows only when we elect to repurchase or otherwise retire fixed-rate debt at prices above carrying value. Interest rate fluctuations gener…
Legal proceedings
Text added vs the prior filing · source: 10-Q · 2026-05-05
See “Tesoro High Plains Pipeline” and “Dakota Access Pipeline” of Note 16 in Item 1. Financial Statements for additional information regarding Legal Proceedings and other regulatory matters.
Text removed vs the prior filing · source: 10-Q · 2025-11-04
On August 29, 2025, MPLX acquired Northwind Midstream, including its subsidiary Northwind Midstream Partners LLC, which owns and operates a sour gas treating facility in Lea County, New Mexico. We have disclosed to the New Mexico Environment Department (“NMED”) excess air emissions from the facility…
How to read Risk Factors (Item 1A) in a 10-Q
A 10-Q risk-factor section usually takes one of three forms; this page classifies it as one of:
- Pointer — the filer states there have been no material changes and points back to the annual 10-K risk factors; there is no own risk text to compare this quarter.
- Partial update — the filer carves out specific updated risks ("except as set forth below"); the excerpts show exactly what is new this quarter.
- Restated in full — the quarter carries the complete risk-factor text. When the prior quarter was only a pointer there is no prior full text to diff against, so the page flags the section as restated instead.
This describes the filing structure only — it is never a judgement on whether risk went up or down.
Source: text-level diff of the two SEC EDGAR filings · deterministic (no AI-generated content) · for reference only · not investment advice