Global move away from oil could lead to conflict and migration, experts say

by | Sep 18, 2026 | Climate Change

Global move away from oil could lead to conflict and migration, experts say

Research released this week indicates that the global shift away from oil consumption will create substantial geopolitical and economic challenges for countries heavily reliant on petroleum revenues, unless coordinated international intervention occurs. Nations including Nigeria, Iran, Angola, and Algeria face particular vulnerability due to their dependence on oil income for government operations and public services, combined with limited economic diversification and insufficient financial reserves to manage the transition.

Oil demand is already declining in many regions as renewable energy expands, a trend accelerated by supply constraints stemming from the Iran war and resulting inflationary pressures. Forecasts suggest global demand will plateau within the coming decade, with a peak anticipated in the early 2030s, forcing producers to compete for a shrinking market. Research from the E3G thinktank, which involved extensive scenario analysis with over 100 government officials and experts worldwide, projects that lower-cost producers with advanced infrastructure—such as Saudi Arabia and the United Arab Emirates—will maintain market share more successfully than higher-cost competitors.

The fiscal impact on vulnerable nations will be severe. Algeria faces a projected 87 percent revenue decline, while Nigeria is expected to experience a decline exceeding 60 percent. In 17 countries globally, oil revenues constitute over 40 percent of government income, with Iraq and Libya deriving 70 to 90 percent of government revenue from the sector. These financial shortfalls will constrain governments’ capacity to fund essential services, destabilizing social structures and compounding existing debt burdens in countries like Angola and Mexico.

Experts warn that without intervention, these fiscal crises could trigger diverse security complications including civil unrest, large-scale migration flows, regional instability, and military conflict over infrastructure. Addressing these challenges will require coordinated action among international financial institutions, governments, and private sector actors, utilizing existing but fragmented policy tools to support producer nation transitions. The future trajectory of oil demand hinges partly on India’s energy choices, as China’s consumption continues declining due to electric vehicle adoption.

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