Factbox-US-sanctioned Russian oil majors Rosneft and Lukoil

MOSCOW (Reuters) -U.S. President Donald Trump on Wednesday imposed Ukraine-related sanctions on Russia's largest oil companies, Lukoil and Rosneft, in Washington's toughest measures against Russian business during the war with Ukraine. Following are key facts about the companies, which together account for around half of Russia's total oil production: ROSNEFT * The company is headed by Igor Sechin, a long-standing ally of President Vladimir Putin. * Oil and gas condensate production reached 184 million ...