Global Oil Crisis: Nearly Half of Supply Now Flows From War Zones
- Almost half of the world's oil supply originates from countries impacted by active conflicts in 2026, according to calculations published by Reuters.
- Six months ago, military strikes carried out by the United States and Israel against Iran sparked what Reuters describes as the largest oil supply crisis on record.
- Energy analysts estimate that current disruptions in the Persian Gulf range between 5 million and 7 million barrels per day.
Almost half of the world’s oil supply originates from countries impacted by active conflicts in 2026, according to calculations published by Reuters. The ongoing disruption has surpassed previous energy crises following six months of military escalation in the Middle East and Eastern Europe.
Global Energy Supply Strained by Multiple Conflicts
Six months ago, military strikes carried out by the United States and Israel against Iran sparked what Reuters describes as the largest oil supply crisis on record. At the same time, the ongoing war between Russia and Ukraine has forced production and refining cuts throughout the region, including actions affecting Kazakhstan earlier this year. Additional pressure on global markets stems from active conflict in Libya and strict U.S. restrictions placed on Venezuelan oil exports enacted at the start of the year. According to Reuters calculations utilizing International Energy Agency data, these conflict-affected nations produced roughly 45 million barrels per day in 2025. That output accounts for more than 43% of the total global oil supply.
Hormuz Disruption and Alternative Routes
Energy analysts estimate that current disruptions in the Persian Gulf range between 5 million and 7 million barrels per day. Exporters in the Gulf have worked around regional bottlenecks by sneaking oil secretly out of the Strait of Hormuz, while Saudi Arabia has redirected shipments toward the Red Sea, according to industry estimates. Despite these routing adjustments, overall supply flows remain vulnerable to regional flare-ups. Attacks near Egypt’s Suez Canal and throughout the Red Sea in July demonstrated the fragile security surrounding maritime energy corridors. Consequently, global markets have grown increasingly reliant on U.S. oil production, although severe weather events have occasionally interrupted domestic American output.
Refining Shortages and Broader Economic Impacts
Beyond crude production, the conflicts in the Gulf and Eastern Europe have reduced global refining capacity by approximately ten percent. Ukraine has systematically targeted Russia’s refining infrastructure, striking industrial plants as far inland as Omsk, situated roughly 2,700 kilometers from Ukrainian-held territory, as reported by Reuters. The resulting fuel shortages inside Russia prompted Russia to enforce a ban on gasoline and diesel exports, which has further tightened global markets. Driven largely by elevated fuel prices, inflation has climbed, pushing borrowing costs higher and contributing to an expansion of U.S. national debt to a record $40 trillion. U.S. diesel prices have similarly surged to record highs while domestic refiners operate at peak capacity. To help absorb the initial supply shock, the International Energy Agency released record volumes from emergency petroleum reserves. Reuters reports that those emergency releases are now largely complete, while global inventories continue to decline.
