According to reports, workers turned up for work as usual yesterday morning.
However, from 7:30 am an alarm signaled that there was a problem.
This meant that workers had to immediately exit the base.
A foul stench was the source of the issue.
The stench was reportedly unbearable and workers were relocated to a second muster point at Clifton Hill.
Oilfields Workers Trade Union (OWTU) president general, Ancel Roget, said workers were concerned about the escape of gas near the Trinmar base and environs.
Reports indicate that workers remained at the muster point until midday when they were dismissed.
Roget said that up to last evening the situation was not resolved and workers were not back on the job.
He requested that Petrotrin convene a health and safety committee to deal with the issue.