Friday, January 19, 2024 Business ExxonMobil completes $230M upgrade of Baton Rouge refinery By Dillon Lowe - January 19, 2024 FacebookTwitterLinkedinEmailPrint The ExxonMobil Baton Rouge chemical plant is part of the petrochemical complex. (File photo) ExxonMobil on Thursday announced that a $230.5 million, three-year modernization initiative at its aging north Baton Rouge refinery has been completed. Already an INSIDER? Sign in.