The United Kingdom has become the first country to sanction all ten of Russia's largest oil producers, announcing a major new package of measures aimed at cutting the revenue that funds Moscow's war in Ukraine.
The package, announced on Thursday by Prime Minister Andy Burnham as European leaders gathered in Dublin for the European Political Community summit, adds Russian oil producer Slavneft to the UK sanctions list, completing Britain's coverage of the country's top ten producers.
The measures also target vessels involved in transporting Russian oil and liquefied natural gas, major coal companies and Rosneft's flagship Arctic oil and gas project, LLC Vostok Oil. In total, 20 new entries were added to the UK sanctions list on Thursday — nine companies and eleven ships — including petrochemical holding company Sibur and coal producers Kuzbassrazrezugol and the Siberian Coal Energy Company.
Slavneft, which accounts for roughly 2.9 percent of Russia's total oil production, is now subject to an asset freeze, barring dealings in its funds under UK jurisdiction. The government said the package targets nearly every part of the energy revenue chain, from producers and trading networks to supply chains and the vessels that carry the oil.
Britain had already sanctioned most of Russia's energy giants. Gazprom Neft and Surgutneftegas were targeted in January 2025, followed by Rosneft and Lukoil in October 2025, and Tatneft, Russneft, Zarubezhneft and INK Capital in the months after. By 8 October, the government said its sanctions covered more than 90 percent of Russia's total oil production capacity, with more than 600 vessels and over 3,500 targets sanctioned in total under its Russia regime.
Burnham said the government was unveiling "a sweep of stinging new sanctions to turn the screws on Russia's oil revenues and drive forward an end to the Kremlin's needless war". He added that despite progress in peace talks on Ukraine, it was too early to ease pressure on Moscow, and that London would keep tightening sanctions to secure a full and immediate ceasefire.
The announcement came as Burnham arrived in Dublin following the COP31 climate summit in Turkiye, where Ukraine was set to be a focus of the European Political Community gathering. Ukrainian President Volodymyr Zelenskyy was also due at the summit, where discussions were expected to focus on efforts to advance peace talks and maintain pressure on Russia.
The timing matters. The sanctions were announced in the same week that US-mediated peace talks between Ukraine and Russia were held in Abu Dhabi, the first trilateral negotiations in nine months, and days after the two sides agreed a large-scale prisoner exchange. Burnham plans to call on other nations at the Dublin summit to apply more economic pressure on Russia to bring the war to an end.
Russia's energy exports and shipping industry generate significant revenue that helps finance its full-scale war against Ukraine, and targeting not only the companies that produce and trade energy but also the shipping networks that transport it has become a central part of the Western strategy to squeeze Moscow's war chest.
Whether the new measures change the Kremlin's calculations remains to be seen. Russia has adapted to years of sanctions by building a shadow fleet of tankers and finding new buyers for its oil, and the war has continued despite the growing web of restrictions. But with the UK now the first country to have sanctioned every one of Russia's top ten producers, London is betting that closing the last gaps in the net will make it harder and more expensive for Moscow to keep funding the war.
