New Delhi, March 15 -- The U.S. confirmed Saturday that it had struck a tiny but vital island off the coast of Iran while leaving its energy infrastructure intact, avoiding the possibility of a worsening oil crisis.

The U.S. Central Command said in a statement Saturday that naval mine storage facilities and missile storage bunkers were among the targets destroyed in a so-called precision strike on Kharg Island.

Kharg Island is a small coral outcrop in the Persian Gulf, roughly 15 miles off the Iranian coast. It's home to an oil terminal that ships 90% of the country's oil exports, and is widely considered an economic linchpin for Iran.

The Central Command said that U.S. forces had struck 90 Iranian military targets on the island "while...