Flint Hills Resources

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General Maintenance and Small Capital Projects – Corval Group conducted annual maintenance, small capital and turnaround projects on a regular basis totalling an average of $15,000,000 annually.

Ultra Low Sulfur Hydrogen Unit – Corval Group was the piping sub-contractor responsible for the installation of over 25,000 feet of carbon steel, stainless steel and chrome pipe in the existing Flint Hills Refinery in Rosemount, MN. Corval Group also set the miscellaneous equipment and structural steel for this project as well as all start-up and commissioning support during plant commercialization.

Coker Drum Replacement – Corval Group was responsible for completing equipment setting and piping installation for the Coker Drum replacements and safety valve installations.


Oil, Gas, and Chemical

Project Duration

15 Years


Pine Bend, MN

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