A fire at Exxon Mobil’s facility in Baytown, Texas on Thursday sent black smoke over the Houston Ship Channel and was visible in the city of Houston, according to Reuters.
The blaze began in a hydrotreating unit where diesel is processed at the oil refinery element of the facility (it also has a chemical plant). Hydrotreating units remove sulphur from oil products.
The fire was put out without anyone being injured nor any reduction in output.
An Exxon spokesman said the company would monitor air quality in the vicinity.