Jason Doll is currently the Director of Business Development at Barentz, a role they have held since 2024. Prior to this, they were the Director of Distribution at Calumet Refining, LLC from 2018 to 2024, and an Account Representative at Calumet Specialty Products Partners, L.P. from 2015 to 2018. Jason's earlier experience includes various sales and account management positions at Univar and Chemcentral from 2001 to 2015. They earned a Bachelor of Science in Biology from the University of Wisconsin-Eau Claire in 2000.
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