When missiles started flying over the Gulf, the world reached for its usual dashboard. Crude prices. LNG cargoes. Tanker rates through the Strait of Hormuz. But the same strike that rattled the oil market broke a smaller, stranger one. In early March, Iranian missiles hit Ras Laffan, Qatar's giant gas complex. QatarEnergy suspended production entirely, With that, roughly a third of the world's supply of a very different gas vanished overnight.