The recent conflict involving Iran has prompted a global surge in efforts to expand domestic oil and gas reserves as countries seek to shield themselves from future supply disruptions. The nearly three-month closure of the Strait of Hormuz, which halted roughly 20% of global oil and liquefied natural gas shipments, triggered a significant reshuffling of energy markets and pushed Brent crude prices close to $120 per barrel.

A critical factor in stabilizing markets during the crisis was the coordinated release of emergency petroleum reserves. Early in the conflict, the 32 members of the International Energy Agency (IEA) agreed to release a record 400 million barrels from their strategic petroleum reserves (SPRs), with the United States providing the largest share. This drawdown, the sixth since the IEA’s formation in response to the 1973 Arab Oil Embargo, upheld the agency’s policy requiring members to maintain emergency stocks sufficient to cover at least 90 days of net imports.

China's approach provided another key example for the rest of the world. Although not an IEA member, China has amassed what is believed to be the world’s largest strategic petroleum reserve, totaling more than a billion barrels. During the conflict, China reduced its crude imports by over one-third, a move made possible by its substantial reserve stockpile. This strategy not only allowed Beijing to curb spending by billions of dollars but also helped insulate its economy from the severe energy shortages experienced by other Asian countries reliant on Middle Eastern supplies, which account for around 60% of the region’s energy imports.

In contrast, countries such as India, Pakistan, and Thailand faced more acute challenges due to limited domestic reserves. Without substantial emergency stockpiles, these economies had to resort to subsidies, rationing, reduced work hours, and other austerity measures to manage fuel consumption and mitigate economic impacts.

Looking ahead, many vulnerable energy importers are expected to invest in expanding their strategic reserves where financially feasible to better prepare for future shocks. Meanwhile, nations with less fiscal capacity may focus on enhancing demand-reduction strategies as a form of energy security.

The global response to the Iran conflict underscores the critical role of strategic reserves in maintaining energy stability and highlights the growing importance countries place on balancing market participation with protective buffers against geopolitical risks.