Global Oil Supply Fears Surge After U.S. Strikes Kharg Island, Threatening Key Strait of Hormuz Access
March 14, 2026 – Concerns are mounting over potential global oil supply disruptions following a U.S. Military operation targeting Kharg Island, a critical hub for Iranian oil exports. The move, according to reports, extends beyond simply securing access to the Strait of Hormuz and could severely impact the world’s energy markets.
An energy strategist warned that the strike impacts one of six “critical choke points” for global oil supplies, potentially leading to a significant and prolonged shortage. The strategist, with extensive upstream oil industry experience across multiple continents, emphasized that the most significant risk isn’t direct conflict, but rather the potential for a catastrophic and difficult-to-recover collapse of the production system.
Kharg Island is often viewed as a simple export terminal, but from a petroleum engineering perspective, it represents the culmination of a massive underground network. The island serves as the outlet for crude oil extracted from the Ahvaz, Marun, and Gachsaran fields, located thousands of feet below the surface. This oil travels through hundreds of degassing and pumping stations before converging on the small, 20 square kilometer island.
Should the U.S. Maintain control of the island, or if attacks prevent customers – particularly those in China – from loading oil, a severe chain reaction could unfold. Storage facilities on Kharg Island, with a capacity exceeding 30 million barrels, would quickly reach capacity within days, leading to a “overflow” situation where oil backs up into the pipeline system.
This would then necessitate an immediate “forced shut-in” of upstream production. Shutting down oil wells is a complex engineering challenge, far beyond simply closing a valve. Maintaining control of immense subsurface pressure is crucial; improper or abrupt closures can damage equipment or, even worse, cause “formation damage,” permanently blocking the oil-bearing rock. Every minute of delay increases the risk of pipeline rupture due to accumulating pressure.
“You can seize the island, but you can’t produce oil,” the strategist stated, suggesting that the U.S. Would inherit a damaged terminal, as the island’s small size makes avoiding damage to pumping stations and storage tanks nearly impossible.
Restarting the upstream system, should it be shut down, is expected to take a minimum of six to twelve months. This would involve “pigging” the pipelines – cleaning them with specialized tools – repressurizing the wells, and repairing any damaged degassing stations. During this period, the world could lose millions of barrels of oil per day.
The loss of oil from Kharg Island would trigger a scramble among major buyers, including China, for alternative supplies, driving prices sharply higher. The difficulty in restoring oil production underscores the complexity of energy crises and the potential for prolonged market instability. The strategist, having worked on oil projects globally, believes the damage will be far more extensive than currently reported.
