Public Comment Form

Commenting open: July 07, 2025 12:00AM CT - August 06, 2025 11:59PM CT.

Flint Hills Resources Pine Bend Refinery - Air Permit

We invite you to comment on the draft air quality permit for Flint Hills Resources Pine Bend Refinery.


Flint Hills Resources operates Pine Bend Refinery in Rosemount. The facility processes heavy, sour crude oil from western Canada and other parts of the world. Pipelines deliver the crude oil to the refinery where it is processed into a variety of products including gasoline, diesel fuel, heating oil, jet fuel, petroleum coke, asphalt, and elemental sulfur. These products are distributed to customers in Minnesota and surrounding states via pipelines, trucks, barges and railcars.


The draft permit reissues the facility’s operating permit. It authorizes the addition of an oil/water separator, a skim oil tank, an emergency generator, and continuous emissions monitors for an existing heater.


An air quality operating permit is required for certain existing facilities or the construction of new facilities that have the potential to emit a significant level of any regulated pollutant. The permit includes all requirements for operation and procedures, applicable rules, emission standards, monitoring, recordkeeping, and reporting. If additional conditions change and modifications are necessary, the MPCA may review and amend the permit.



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Thank you for providing feedback on this project. We value your comments and will use them to assess this project further.


In your comments, please state your interest in the permit application or the draft permit; the explicit actions you wish the MPCA to take, including specific references to the section of the draft permit you believe should be changed; and the reasons supporting your position, stated with sufficient specificity as to allow the MPCA to investigate the merits of the position.


If you want to submit a letter, you can upload the letter on this website or submit it via US Mail to the following address:


Minnesota Pollution Control Agency
c/o Tarik Hanafy
520 Lafayette Road
Saint Paul, MN 55155

*Uploading a file is optional*

You may attach up to five 20 MB files to accompany your submission. Allowed formats are pdf, jpg, jpeg, png, txt, gif, doc, docx, xlsx, xls. If you experience technical difficulties submitting your comment please contact the person listed at the bottom of this page.


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