Several workers injured in natural gas explosion in Klein area, authorities say CNN Newsource and last updated 2021-03-06 12:06:42-05 A massive natural gas fire in Harris County Friday sent several people to the hospital. Seven CenterPoint Energy workers were injured in the massive gas fire near Klein, according to KTRK. Comcast crews were in the area working when they punctured a gas line, the Harris County Fire Marshal's Office said. CenterPoint Energy crews were then sent to fix the line. As they were leaving, crews hit what was described as a 6-inch high pressure natural gas line, which is considered a main line, according to KTRK.