SaskEnergy is done with their investigation into a fire at a storage facility near Prud'homme in October of 2014.

Nobody was hurt but five landowners were evacuated while the fire continued for six days.

Director of Media and Government Relations Dave Burdeniuk explains what caused the leakage and blaze.

"We wanted to make sure that the integrity of those cavern walls were maintained. We were putting water in forcing gas out and then once we had nothing but water inside that cavern we were able to take a real good look at the steel casing. What we found was that there was a failure in the steel casing about two metres down in that cavern."

The cavern has not been used since and likely won't ever go back online with the other 18 caverns SaskEnergy manages at six different locations.

Burdeniuk explains more about the cause of the blaze.

"At some point in that there was a spark, whether it was metal fragments from the building or a couple of stones from the gravel surrounded it that caused a spark that ignited and then we had the fires."

Burdeniuk says they are still confident in the cavern system, they've been using them since the 1960's and have had this lone fire but he adds they did learn some valuable lessons moving forward.

"We looked at the steel casings to ensure that there was integrity there, we did some additional work providing more stability between that steel and the concrete that surrounds it and we also did a redesign of the venting system around all those caverns if there ever is a large release of natural gas."

No service was lost to customers during the incident either.

You can hear more from Burdeniuk below in his interview with Bolt FM's Clark Stork.