Dubai, June 22: An explosion tore through Qatar's key natural gas export terminal Sunday night as workers tried to resume operations there after Iran bombed it during the war, causing a fire that hurt at least 54 people, with another 18 still missing hours later. The blast at the Ras Laffan industrial area could cause further chaos in global energy markets, particularly as Qatar remains one of the world's top natural gas producers. Qatar shut down its production after Iran's chokehold on the Strait of Hormuz meant it couldn't get shipments out to its clients.