Black Sea Crude Routes Shut as Drone Strikes Take Sheskharis and CPC Offline
Simultaneous shutdowns at Russia's largest Black Sea terminal and the Caspian Pipeline Consortium hub have cut two major export arteries, squeezing both Russian and Kazakh crude flows.
ICE Brent crude front-month was trading at $84.69 a barrel on Monday (2026-08-10), up nearly 1% on the session, as a mutual naval campaign between Russia and Ukraine tightened the Black Sea's main oil export corridors. Foreign Policy reported on Thursday (2026-08-06) that both sides are now systematically targeting the other's maritime trade — Ukraine through an expanding drone campaign against Russian tankers and shore infrastructure, Russia through strikes on Ukrainian port approaches — producing what the outlet described as a mutual shutdown of the sea.6
The supply figures give the pressure context. Russia's largest Black Sea oil export terminal, Sheskharis, effectively went offline in late July (2026-07-24) after drone attacks shut down the neighboring Caspian Pipeline Consortium terminal on the Black Sea coast, OilPrice.com reported. Sheskharis had been exporting an average of around 650,000 barrels per day across the first half of 2026.5
Kazakhstan's losses compound the picture. Astana confirmed on Tuesday (2026-07-21) that it was halting crude transfers through the CPC Black Sea terminal following a spate of attacks on tankers that made the route commercially unworkable. CPC normally handles more than 80% of Kazakhstan's crude exports and accounts for roughly 2% of global oil supply, OilPrice.com noted.4
Novorossiysk, the port complex that encompasses both Sheskharis and the CPC berths, had loaded more than 980,000 barrels of crude a day in June, according to Bloomberg data — more than 20% of Russia's total seaborne crude exports for that month, per International Energy Agency figures. Ukrainian forces said on Wednesday (2026-07-15) that they had struck more than 100 Russia-linked vessels in the Black Sea and described it as the conclusion of a first phase of naval operations.3
The current episode differs materially from 2022-2023. Then, Russian warships imposed a conventional naval blockade on Ukraine's Odesa coast, using vessels and mines to prevent the entry and exit of ships. Roughly 20 million tons of Ukrainian grain ended up stranded during that period, Foreign Policy reported. What is unfolding now runs in both directions, with each side degrading the other's maritime trade simultaneously rather than one power holding the controlling position.6
Russia demonstrated between 2022 and 2023 that chokepoints generate leverage — letting the Black Sea grain corridor function, closing it, then offering its resumption as a bargaining chip, War on the Rocks noted in May (2026-05-08). That strategy depended on Moscow controlling the corridor unilaterally. Ukraine's drone capability has removed that asymmetry.2
Russia's routing alternatives are constrained. The Turkish and Danish straits account for 20% and 35% of its crude exports respectively, the Economist reported in May (2026-05-19), and both pass through NATO-controlled or adjacent waters. Shifting significant volumes from the Black Sea to alternative routes would require navigating those pinch-points, a geopolitical complication with no near-term resolution.1
The insurance problem stands apart from the military one. After hostilities in the Gulf knocked out commercial war-risk coverage beginning in March 2026 and premiums spiked fivefold, the United States assembled a $20 billion maritime reinsurance facility covering hull, cargo, war protection, and indemnity, according to Foreign Policy. No equivalent programme exists for the Black Sea, and there is no indication one is being assembled.6
ICE Brent was holding at $84.69 a barrel on Monday (2026-08-10). Urals crude was quoted at $79.19, a discount of about $5.50 to Brent, reflecting persistent uncertainty around Russian seaborne supply. Whether CPC and Sheskharis restore any throughput in the coming sessions will be the first measure of how deep the disruption runs; Ukraine's next naval targets, following what Kyiv called the end of a first phase, will be the second.5,3