Britain has imposed sanctions on all 10 major oil producing companies in Russia.
Britain announced sanctions against the Russian oil company Slavneft, as well as a number of energy-related factories and vessels. The sanctions package included ships carrying Russian oil and liquefied natural gas, large coal companies and Rosneft's Vostok oil project.
The British government has indicated that the inclusion of Selvanneft on the sanctions list means that the restrictions now apply to all ten of Russia's largest oil companies.
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