Mexico's Oil to Cuba: Restart Hopes as Island Faces Total Fuel Collapse

Cuba is in the grip of its most severe energy emergency in decades. Fuel reserves are gone, the national grid is collapsing, and the humanitarian toll is mounting by the day. At the center of the story is a critical question: will Mexico restart the oil shipments that once kept the island running?

Here is a source-based briefing on the current status of Mexico's efforts, the causes and consequences of the crisis, and the biggest uncertainties ahead.

Current Status: Mexico's Efforts to Restart Oil Shipments

Mexico stopped shipping oil to Cuba in early 2026. On June 22, 2026, President Claudia Sheinbaum announced her government is trying to restart shipments — but no tankers have sailed yet.

• The halt: Mexico paused oil deliveries in late January 2026 amid fears of retaliation from the incoming Trump administration . President Sheinbaum confirmed the halt on February 9, 2026 .
• The announced restart: On June 22, 2026, Sheinbaum said Mexico is working to resume oil shipments to Cuba through private companies authorized to transport fuel. She framed it as a commercial operation rather than a humanitarian one . She clarified that supply has not yet resumed but that efforts have been underway for "some time" .
• Humanitarian aid, not oil: In the interim, Mexico sent two navy ships carrying more than 814 tons of humanitarian aid — mostly food — in February 2026, but not fuel .

Bottom line: The announcement is a stated intent, not a confirmed delivery. The timing, volume, and whether private companies will follow through — and whether the US will retaliate — remain uncertain .

Key Causes of Cuba's Energy Emergency

• US oil blockade — In late January 2026, the United States effectively blocked substantial oil deliveries to Cuba, cutting off the island's primary fuel lifeline . This is the single most cited proximate cause across major sources .
• Loss of Venezuelan supply — Following the 2026 US intervention in Venezuela, Cuba lost its main subsidized oil supplier, which had been critical for years .
• Aging power infrastructure — Cuba's nine thermal power plants are old, poorly maintained, and frequently break down, making the grid fragile even when fuel is available .
• Compounding factors — The lingering devastation from Hurricane Melissa (late 2025) and a severe lack of spare parts worsened the crisis .

Consequences: A Humanitarian Crisis in Real Time

• Total fuel depletion — By May 2026, authorities announced the nation had exhausted its diesel and fuel oil reserves . Energy Minister Vicente de la O stated publicly: "We have no fuel, no more reserves" .
• Extreme blackouts — Rolling blackouts of 18–22 hours per day are common; the national grid has partially or totally collapsed repeatedly .
• Hospitals crippled — Medical facilities have limited surgeries, reduced admissions, and cannot operate critical equipment reliably .
• Food and water insecurity — Food spoils without refrigeration, water pumps fail, and garbage accumulates uncollected in cities .
• Transport collapse — Public transport is largely non-operational; gas stations are shut .
• UN warning — The UN Secretary-General has expressed extreme concern that the situation may lead to a humanitarian "collapse" if oil supplies are not restored .

Key Uncertainties

• Will Mexico actually restart shipments? Sheinbaum's June 22 announcement is not a confirmed delivery. It remains unclear when or if private companies will follow through, and whether the US will retaliate .
• Can other suppliers fill the gap? Russia and others have sent some fuel, but the volumes have been insufficient . It is uncertain whether alternate sources can sustain Cuba's needs.
• How much longer can Cuba's grid function? With fuel reserves at zero and infrastructure crumbling, experts warn of a potential total and prolonged grid collapse .
• What is the US posture? The US has said it will review oil deliveries on a "case-by-case basis," leaving room for uncertainty about future enforcement .