HONG KONG — The fallout from the U.S.-Israeli war with Iran and the effective closure of the Strait of Hormuz is being felt sharply in Asia, with authorities from New Delhi to Manila implementing emergency measures to shield consumers from mounting shortages and surging oil prices.

On Friday, people in Nepal lined up at gas-filling stations, carrying their empty, red cooking-gas cylinders as the country’s main oil company said it would only fill them halfway with LPG, or liquefied petroleum gas, as it tries to make stocks last longer.

Neighboring India, which is the world’s second-largest importer of LPG after China, is grappling with panic-buying among its own citizens amid wild swings in the price of international Brent crude oil, which as of early Friday was above $100 a barrel.

The unease highlights just how much a region dependent on oil from Gulf nations is affected by the Iran war, which the International Energy Agency says has created the “largest supply disruption in the history of the global oil market.”

Unlike the U.S. or Europe, which have more diverse sources of oil, Asia relies heavily on imports that pᴀss through the Strait of Hormuz, a key shipping route along southern Iran that carries about a fifth of the world’s oil.

“The ability to refine different oils from different places is complicated and not easily shifted in Asia,” Robert Savage, the head of markets strategy and insight at BNY, formerly known as Bank of New York Mellon, told NBC News on Thursday.

Among the countries most affected are Singapore, Thailand, South Korea, Pakistan and Japan, according to a research note Thursday from Eurasia Group, a New York-based geopolitical risk analysis firm.

The escalating conflict in the Middle East has set off an energy frenzy across the continent, forcing governments to ration fuel and scramble for alternative supplies.