Regardless what hypothesis you may prspooe as probable cause for the accident at Amuay, there is no denying that âeventsâ at oil refineries should not result in dozens of people killed and millions of dollars in losses â¦ unless, of course, somebody, somewhere did not do their job. Repeating-this is a case of not following safety procedures that are well-known by all. Regardless, if it was a small leak or a large one- the first step is to evacuate people around it, secure the area, and begin to repair the leak-without delay. It is impossible to think that PDVSA employees at the refinery had not knowledge of a leak in this area-esp.considering the testimony of people far away who claimed they smelled an odor of gas three days prior? Inexcusable, I believe.