Marathon Petroleum Corporation: 10-K Risk Factor Changes

2026 vs 2025  ·  SEC EDGAR  ·  2026-10-16
⚠ AI Risk Brief Interpretation layer — deterministic data below

Six risk factors substantively modified reflecting tighter labor, regulatory, refining margin, and interest rate pressures.

✓ Deterministic extraction — no AI-generated data

Classification is based on semantic text similarity scoring and may include approximations. “No match” means no high-confidence textual match was found — not necessarily that a section was removed.

0
New Risks
0
Removed
6
Modified
38
Unchanged
🟡 Modified Disclosure change5/10

We expect to continue to incur substantial capital expenditures and operating costs to meet the requirements of evolving environmental and other laws or regulations. Changes to the federal government’s policies and operations could lead to increased regulatory uncertainty and volatility and increased state regulation, which may impact our business, financial condition and results of operations.

high match confidence

Sentence-level differences:

  • Reworded sentence: "Our business is subject to numerous environmental laws and regulations at the federal, state and local level."
  • Reworded sentence: "Laws and regulations expected to become more stringent relate to the following: • the emission or discharge of materials into the environment; • solid and hazardous waste management; • the regulatory classification of materials currently or formerly used in our business; • pollution prevention; • climate change and GHG emissions; • characteristics and composition of transportation fuels, including the blending of renewable fuels into transportation fuels; • the production, importation, use, and disposal of specific chemicals; • public and employee safety and health; • permitting; • inherently safer technology; and • facility security."
  • Reworded sentence: "presidential administration announced wide-ranging policy changes and issued numerous executive actions."

Current (2026):

View prior text (2025)

Our business is subject to numerous environmental laws and regulations. These laws and regulations continue to increase in both number and complexity and affect our business. Laws and regulations expected to become more stringent relate to the following:

  • the emission or discharge of materials into the environment;
  • solid and hazardous waste management;
  • the regulatory classification of materials currently or formerly used in our business;
  • pollution prevention;
  • climate change and GHG emissions;
  • characteristics and composition of transportation fuels, including the quantity of renewable fuels that must be blended into transportation fuels;
  • the production, importation, use, and disposal of specific chemicals;
  • public and employee safety and health;
  • permitting;
  • inherently safer technology; and
  • facility security.

The specific impact of laws and regulations on us and our competitors may vary depending on a number of factors, including the age and location of operating facilities, marketing areas, crude oil and feedstock sources, production processes and subsequent judicial interpretation of such laws and regulations. We have incurred and will continue to incur substantial capital, operating and maintenance, and remediation expenditures to modify operations, install pollution control equipment, perform site cleanups or curtail operations. We have incurred and may in the future incur liability for personal injury, property damage, natural resource damage or clean-up costs due to alleged contamination and/or exposure to chemicals such as benzene and methyl tert-butyl ether (“MTBE”). There is also increased regulatory interest in PFAS, which we expect will lead to increased monitoring and remediation obligations and potential liability related thereto. Such expenditures could materially and adversely affect our business, financial condition, results of operations and cash flows.

In early 2025, the new U.S. presidential administration announced wide-ranging policy changes and issued numerous executive actions on topics including international trade, energy resources, corporate taxes, global climate change initiatives, employment practices, corporate compliance programs, environmental regulations, as well as other matters. Further, the new presidential administration has indicated an intent to make structural changes to the executive branch of the federal government, including significant reductions in the federal workforce. Continuing legal challenges to many of the policy changes and executive actions are expected. Such actions may directly or indirectly impact our industry and could lead to increased regulatory uncertainty and volatility. We cannot predict how these policy changes and executive actions will be implemented and interpreted, or the ultimate effect they will have on our business, financial condition and results of operations.

🟡 Modified A portion of our workforce is unionized, and we may face labor disruptions that could materially and adversely affect our business, financial condition, results of operations and cash flows. 🔒
🟡 Modified Our financial results are affected by volatile refining margins, which are dependent on factors beyond our control. 🔒
🟡 Modified Increases in interest rates could adversely impact our ability to issue equity, refinance existing debt or incur additional debt for acquisitions or other purposes and our ability to pay dividends at our intended levels. 🔒

And 2 more changes in the full comparison.

5 more changes in this filing

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