The IMF's latest economic outlook, released on Tuesday, marks a sharp downgrade from the 1.9 percent expansion projected in April. The Washington-based institution cited prolonged disruption to shipping in the Strait of Hormuz, a conduit for one-fifth of global oil supplies in peacetime.
Kuwait, Iraq and Qatar are forecast to suffer the most severe contractions, with their economies expected to shrink by 16.7 percent, 16 percent and 15.6 percent respectively. Bahrain's GDP is projected to contract by 11.3 percent, while Iran's economy is expected to shrink by 7.6 percent.
Saudi Arabia, which has partly offset the hit to its energy sector by boosting oil exports through the East-West pipeline, is projected to record negative growth of 3.3 percent. At the other end of the scale, Kyrgyzstan is expected to be the region's strongest performer, with GDP forecast to expand 9 percent.
Other regions are projected to grow, including emerging and developing Asia at 5.1 percent, Sub-Saharan Africa at 4.5 percent, Latin America and the Caribbean at 2.3 percent, the United States at 2.3 percent, China at 4.5 percent and the eurozone at 1.1 percent.
The IMF said it expects global GDP to grow 3.1 percent, up from 3 percent in its previous outlook. While economic activity has proved resilient this year, the institution said the global economy faced multiple risks.
"Further escalation in conflicts, a reassessment of expectations surrounding artificial intelligence (AI), renewed trade tensions, and fiscal vulnerabilities could weaken growth," it said. "On the upside, stronger momentum in AI investment and productivity gains from AI or a sustained easing of geopolitical and trade tensions could strengthen growth."