replace. >> like where along the lines did somebody screw up trickle down to dustin and now he's gone. >> we're headed to nabors to try to find out in dustin's case it seems like basic safety regulations weren't followed. why was he asked to weld on a tanker that was still explosive. so that was a deadend we're told that there's no management here that we can speak to. we're back on the chase again with the headquarters in houston to see if we can find someone there that will talk to us. >> good morning nabors >> hi good morning. my name is josh rushing i'm calling from a show called fault lines. i'm up in williston north dakota. >> over the course of two months fault lines repeatedly tried to contact nabors about their safety record and what happened to dustin. our requests for an interview declined. the data varies, but dustin payne was one of at least forty oil and gas industry workers who died on the job in north dakota in the last four years. his death is currently being investigated by osha. >> 40 guys have died out there since 2011. all sorts of accidents. we're looking for accountability. what part of t