After months of a crippling oil blockade on Cuba imposed by the United States, the fuel-starved country may now see some relief after the US government said it would begin authorising companies to resell Venezuelan oil, even as tensions between the two reach a head.

On Wednesday, the US Department of the Treasury said it would allow the resale of Venezuelan oil for “commercial and humanitarian use” in Cuba as the small island nation faces one of its worst fuel crises in decades.

Venezuela is the largest provider of oil to Cuba. However, since US forces abducted Venezuelan President Nicolas Maduro in January and imprisoned him to face drugs and weapons charges in a New York court, the Donald Trump administration has taken control of Caracas’s oil and halted exports to Havana.