Chile is considering adopting E10, a gasoline blend containing 10% ethanol, as surging oil prices strain government finances and fuel subsidies. A proposal drafted by the energy ministry estimates the switch could reduce fuel supply costs by approximately $107 million annually, while state oil company ENAP would need about $10.8 million to adapt refining, terminal and storage infrastructure. Chile imported 181,000 barrels per day of crude oil in 2025, according to OPEC data, and already relies on the United States for 85% of its gasoline supply. The country has no ethanol-blending mandate and remains one of the few regional users of MTBE, an octane-boosting additive. The transition could be phased in and partly offset by lower carbon-tax payments, with the U.S. Grains Council saying 10% and even 15% blends could be achieved by 2030. The proposal follows a May ministry roadmap to diversify fuel sources and lower carbon emissions, but the ministry did not comment on timing or why Chile had not acted earlier.