The fire started at around 1 am Monday at the King Ranch Gas Plant near Kingsville, Texas, roughly 40 miles south-west of Corpus Christi. No injuries were reported.
The facility processes about 500 million cubic feet per day of natural gas and associated liquids from the US supermajor and other area producers.
The remaining fire is being allowed to burn itself out, according to ExxonMobil, which did not specify an estimated date or time for a restart.
“The cause of the incident will be investigated,” a spokesman told Upstream in a statement. “We apologise for any inconvenience.”
The response included efforts by the Kleberg County Fire Department, Kingsville Naval Air Station, the Refinery Terminal Fire Company and King Ranch Security.