Three engines, one ladder truck, and three medical units remained out of service Monday, according to reports.
The suspects were arrested on felony assault charges afterward.
The explosion may have been triggered by raindrops falling into the hot oil.
The company said, "negotiations continue and we remain dedicated to a resolution that genuinely advances the public interest."
Search and rescue teams are still trying to reach some Bahamian communities isolated by floodwaters and debris.
"So, I'm just going to keep going, and, as soon as I can, I'm going to be back to work."