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Well control specialists are working to stop a gas well blowout in the Utica shale play after a subsidiary of Houston-based Magnum Hunter Resources lost control of a plugged well during drilling operations.

The Stalder 3UH well operated by Triad Hunter in Monroe County, Ohio blew out around 2:00 p.m. EST on December 13.

The previously drilled and completed Stalder 3UH well had been temporarily plugged and abandoned in preparation for the drilling of three additional horizontal wells on the Stalder pad.

The company said Sunday despite numerous precautionary measures the well began to flow uncontrollably while recommencing production operations.

Triad Hunter personnel were removing the well’s night cap flange when a pressure disruption occurred.

The workers attempted to bolt the night cap flange back down but were not able to safely stop the natural gas flowback.

Triad Hunter has contacted all necessary regulatory authorities and evacuated field personnel and residents in the immediate area.

All field personnel are accounted for and no injuries have been reported.

Only critical personnel remain at a command center near the well site to help manage the repair.

Houston-based Wild Well Control has been mobilized and is currently on site preparing for well control operations.