The Strait of Hormuz has reopened after a nearly four-month closure, but global oil reserves are depleted.

Petroleum reserves have hit their lowest levels in decades, with some analysts warning supplies could run critically low within weeks.

Industry experts say it could take months before oil flows normally again, potentially pushing prices higher despite recent declines.

AI-generated summary was reviewed by a CNN editor.

The good news: The Strait of Hormuz is open again, after Iran and the United States signed a memorandum of understanding this week.