Superior is a small, medium conversion refinery located on Lake Superior, outside of Duluth in Superior, Wisconsin in the US.
The refinery is 100% owned and operated by Calumet Specialty Products.
The refinery gets it's crude oil from Western Canada by pipeline and distributes product locally by truck and by pipe on the Magellan system.
Complexity: 8.6
Atmospheric distillation - 50 kbpd
Vacuum distillation - 24 kbpd
FCC - 11 kbpd
Reformer - 9 kbpd - Semiregen
Naphtha hydrotreater - 13 kbpd
Kerosene hydrotreater - 8 kbpd
Distillate hydrotreater - 8 kbpd
FCC gasoline hydrotreater - 13 kbpd
Alkylation - 2 kbpd - Sulfuric acid
Aromatics extraction - 6 kbpd
Asphalt plant - 16 kpd
Sulfur plant - 33 t/d
1950 - Refinery built by Lake Superior Refining
1958 - Acquired by Murphy
2011 - Acquired by Calumet
2011 - Aromatics extraction added
2017 - Acquired by Husky
2018 - Refinery closed after a fire and expected to resume operations in 2020