Shell and third-party providers did not initially detect elevated levels of chemical emissions from the overnight fire.

Fire burning at Shell Norco, emergency crews on-site.

The fire at the Shell Norco Refinery has been extinguished, according to an update Tuesday from the company. Shell said its ...

Shell said Tuesday morning that it has put out an overnight fire that broke out at one of the processing units at its 250,000 b/d Norco refinery in St. Charles Parish, Louisiana. In a 9 a.m. CT update ...