Home Upcoming Plant Events: (1) Ergon has scheduled a 7-16 day planned maintenance beginning Oct. 23rd at its naphthenic refinery in Vicksburg, Mississippi (2) Calumet has scheduled a turnaround that will last 1-2 weeks at its Princeton, Louisiana, plant in early November. (3) San Joaquin Refining plans to start a three-week maintenance shutdown at its Bakersfield, California, plant on Feb. 1, 2022.