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US Allows Russian Oil Tanker to Reach Cuba, Undermining Blockade After Months

US Allows Russian Oil Tanker to Reach Cuba, Undermining Blockade After Months
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The United States quietly allowed a Russian oil tanker carrying up to 730,000 barrels of crude to continue toward Cuba this week, effectively puncturing a de facto blockade that had cut the island off from fuel shipments for more than three months nytimes +1. The Russian‑flagged Anatoly Kolodkin was tracked just off Cuba’s eastern tip on Sunday and was expected to reach port as early as Monday or Tuesday, offering a short‑term lifeline to a country mired in blackouts and economic paralysis nytimes +1.

U.S. officials did not publicly explain why the Coast Guard stood down after months of aggressive interdictions under President Donald Trump’s campaign to “cut off all oil to Cuba” scmp. The decision came just 10 days after the Treasury Department tightened a sanctions waiver for Russian crude by explicitly excluding Cuba from any authorized shipments, underscoring a gap between stated policy and operational enforcement bloomberg.

Why Washington Blinked on a High-Stakes Test at Sea

Stopping the Kolodkin would have meant boarding or blocking a Russian‑flagged vessel in or near international waters, a move legal scholars warned could violate maritime law and risk a direct confrontation with Moscow arabnews. Analysts said the ship’s Russian flag — and reports it had earlier been shadowed by a Russian naval escort in European waters — turned a sanctions case into a geopolitical tripwire arabnews.

The Trump administration had previously seized or diverted multiple tankers linked to Venezuela and Cuba, signaling a willingness to use force at sea cbsnews. But Russia’s energy minister, Sergei Tsivilev, framed the Cuba shipments as “humanitarian support,” stressing that Moscow was helping an ally facing severe shortages caused by U.S. measures barrons. With global energy markets already strained by conflict in the Middle East, Washington had in March granted a 30‑day waiver for some Russian oil cargoes to ease price pressure, even as it vowed that relief would not extend to Havana bloomberg.

Lifeline for Havana, Propaganda Win for Moscow

For Cuba, the shipment arrived after what President Miguel Díaz‑Canel described as more than three months without any oil deliveries, forcing the island to rely on aging domestic production and rationing while enduring widespread power cuts investing. One cargo of roughly 650,000–730,000 barrels could cover only weeks of consumption but was still treated in Havana as critical to stabilizing the grid and keeping basic services running nytimes +1.

Russia has sought to turn the episode into a demonstration of resolve in the Western Hemisphere, advertising its capacity to circumvent U.S. pressure and support partners under sanctions barrons. Critics in Washington argued that allowing the tanker through hands Moscow and Havana a symbolic victory and could encourage further use of Russia’s “shadow fleet” to challenge U.S. restrictions tribuneindia. The apparent disconnect between Treasury’s written ban and the Coast Guard’s posture also raised questions about the credibility of U.S. sanctions enforcement going forward bloomberg +1.

The Bigger Picture

The Kolodkin’s voyage highlighted how unilateral oil sanctions can collide with legal limits at sea, humanitarian fallout on the ground, and the risk of military escalation with rival powers. By letting one tanker through, Washington avoided a potentially explosive confrontation — but at the cost of exposing the constraints and contradictions of its Cuba strategy, and signaling to Russia and others where those red lines may lie.

nytimes Reuters, March 29, 2026
theguardian New York Times, March 29, 2026
facebook France24, March 26, 2026
scmp New York Times, Jan. 30, 2026
bloomberg Reuters/Treasury license, March 19, 2026
arabnews France24 legal analysis, March 26, 2026
cbsnews CSIS/Axios reporting on prior tanker seizures, 2025–26
barrons The Moscow Times, March 25, 2026
investing Reuters/Cuban statements, March 13, 2026
tribuneindia Bloomberg and France24 sanctions analyses, March 2026