New Delhi, March 9 -- Oil fields in countries including Iraq have cut back output as storage fills up. Qatar, a major supplier of liquefied natural gas, has shut down its exports as well.

"A lot of very critical energy infrastructure has been either forced to shut down because of direct damage from drones and missiles," said Torbjorn Soltvedt, principal Middle East analyst at risk intelligence company Verisk Maplecroft, "or because production is effectively being shut in as a result of shipping grinding to a halt. We're already starting to see some of the global ramifications of that."

All that has sent prices soaring, raising the cost of everything that needs fuel: flying, running factories, transporting goods, and farming. Internation...