Hundreds of tankers sit idle on both sides of the Strait of Hormuz as Iran has effectively closed the waterway, pushing oil prices above $100 – the highest since 2022, after the start of the Russia-Ukraine war.Oil tanker traffic in the strait, through which one-fifth of global oil passes, has plunged after Israel and the United States launched attacks on Tehran on February 28. Asian countries, including India, China and Japan, as well as some European countries, source large portions of their energy needs from the Gulf. A disruption in supply will rattle the global economy.With an aim to cushion from the shock, the International Energy Agency (IEA) has decided to release 400 million barrels of oil from emergency reserves, the largest coordinated drawdown in the agency’s history. But it has failed to push the prices down.The agency had released about 182 million barrels after Russia’s invasion of Ukraine to stablise the oil prices.According to the agency, oil shipments through the strategic waterway have fallen to less than 10 percent of pre-war levels, threatening one of the most critical arteries in the global energy system.IEA members collectively hold about 1.25 billion barrels in government-controlled emergency reserves, alongside roughly 600 million barrels in industry stocks tied to government obligations.A large number in a massive marketThe figure may appear vast, but it shrinks quickly against the …