The Weyburn fire department was called to help Cenovus and oil field emergency crews extinguish the fire at the Cenovus plant around 2 a.m. February 11.
The fire started within the treating equipment used to separate oil from water. It spread to some of the plant equipment outside the treater building. There were no injuries and damage was isolated to the Cenovus plant site.
"Our emergency response plan was fully activated. We continue to conduct air monitoring and have determined the air quality is not a concern," said Rhona DelFrari, Cenovus media spokesperson.
The cause of the fire is not yet known and the extent of the damage has yet to be determined.
Production at the Weyburn operation continues with other plant equipment being used. No production loss is expected as a result of the incident at this time.
"We take responsibility for this incident. Cleanup will commence immediately. We will then assess what happened and take steps to prevent a similar incident from happening again," said DelFrari.