Complex sentence: Vladimir Leonidovich Bogdanov ("Владимир Леонидович Богданов" in Russian) (born on May 281951 in Tyumen Oblast, Soviet Union) is a Russian oil tycoon, since 1993 President of Surgutneftegaz, one of the largest Russian oil companies.
Split into simpler sentences: Vladimir Leonidovich Bogdanov ("Владимир Леонидович Богданов" in Russian) (born on May 281951 in Tyumen Oblast, Soviet Union) is a Russian oil tycoon. Since 1993, he is the President of Surgutneftegaz, one of the largest Russian oil companies.