Cuba’s nationwide blackout has exposed a deeper crisis over fuel, aging infrastructure and escalating U.S. pressure on Havana.

Thousands of claims by American citizens and companies for properties nationalized in Cuba are now worth billions.

(CNN) — The Supreme Court on Tuesday allowed Exxon Mobil to sue state-owned oil companies in Cuba over the confiscation of property that occurred after Fidel Castro’s regime seized power nearly seven decades ago, letting the lawsuit proceed at a time ...