Britain has announced new sanctions against all 10 of Russia's largest oil producers. The Guardian. Prime Minister Andy Burnham said he was introducing "a range of tough new sanctions to increase pressure on Russia's oil revenues and end the Kremlin's unnecessary war", as European leaders met in Dublin for talks on the conflict. As Reuters points out, sanctions have been imposed, in particular, against oil production company Slavneft and a number of energy-related organizations. The measures, announced during a meeting of European leaders in Dublin, also apply to ships carrying Russian oil and liquefied natural gas, major coal companies and Rosneft's Vostok project. In the past, Britain has imposed sanctions against major Russian energy companies, including Transneft, Rosneft and Lukoil. Burnham said in a statement that Slavneft's inclusion on the sanctions list meant that all 10 of Russia's largest oil producers were now subject to British sanctions.