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SHREVEPORT, LA –Calumet Specialty Products announced today that a […] INDIANAPOLIS, IN –Calumet Specialty Products Partners, L.P. […] The second annual Calumet Open Golf Outing took place on Friday, May […] GREAT FALLS, Mont. , May 10, 2023 /PRNewswire/ -- Montana […] Students from Louisiana took part in the Louisiana Region 1 Science […] INDIANAPOLIS (February 13, 2023) – Calumet Specialty Products […] Solving performance issues found in higher-mileage vehicles. PORTER, […]