As the United States intensifies its de facto maritime blockade on Cuba and expands naval activity across the Caribbean, Russian “humanitarian” shipments to the island have become a focal point of geopolitical tension, illustrating how energy logistics are increasingly intertwined with great‑power competition.
The Russian flagged tanker Anatoly Kolodkin departed Primorsk on March 8, carrying approximately 700,000 barrels of crude oil, and is now nearing discharge likely at the Matanzas Bay Storage Terminal, according to VesselTracker data and official reporting. In parallel, a second vessel loaded with clean petroleum products at the Cyprus STS area had also been chartered for delivery to Cuba, but ultimately diverted toward Venezuela, abandoning its original trajectory.
Cuba’s refining system remains limited and fragmented. The Nico López Refinery in Havana, with a reported operational capacity of approximately 1 million barrels, stands as the most likely site to process the Kolodkin’s crude. The island also operates two additional facilities: the Hermanos Díaz Refinery in Santiago de Cuba (approx. 400,000 barrels) and the Camilo Cienfuegos Refinery in Cienfuegos Bay (approx. 700,000 barrels). Prior to the removal of Nicolás Maduro in January, Cuba relied on Venezuelan and Mexican shipments to sustain these assets.
In a notable policy shift, the Trump administration recently authorized the discharge of the Kolodkin’s cargo. US officials argued that the shipment posed no significant geopolitical impact, and that seizing a Russian tanker could have triggered high risk diplomatic and military escalation in a period of heightened global instability.
After the collapse of Venezuelan supply, Mexico became an important source of crude and fuel oil for Cuba. Other regional oil exporters could theoretically supply the island, but any future cargoes would almost certainly require US approval, which appears highly unlikely in the current geopolitical climate. Furthermore, increased shadow fleet movements should not be expected, given the heightened US Navy presence across the Caribbean Sea and outer waters near Cuba and the Bahamas.
Cuba will therefore need to seek stable, politically viable energy partners, as the current blockade, once softened by Venezuelan support, has become more restrictive than ever. The Kolodkin’s arrival may offer temporary relief, but it does not alter the island’s fundamental strategic vulnerability: energy security remains precarious, externally constrained, and deeply exposed to geopolitical leverage.
