The U.S. Chemical Safety Board (CSB) has released a factual update into its ongoing investigation of the blowout and fire at the Pryor Trust Gas Well on January 22, 2018, in Pittsburg County, Oklahoma, that killed five workers.
The CSB has determined the incident occurred shortly after drilling crew members removed the drill pipe from the well in a process known as “tripping.”
In addition to the factual report, the CSB has released an animated timeline of the events leading up to the fatal blowout and fire. The animation can be found at the CSB website.
Investigators will develop a root cause analysis of this incident based on evidence collected during the investigation.
A final report, including facts, analysis, conclusions, and recommendations will be issued at the end of the investigation.