<h1>Major Russian oil firm to sell international assets after new U.S. sanctions, seeks extension of November 21 grace period</h1> A major Russian oil company announced plans to sell its international assets after new U.S. sanctions targeting the country's largest oil firms, citing a sanctions grace period that permits transactions until November 21 and noting it will seek an extension if needed. The firm holds stakes in hydrocarbon projects across 11 countries, including refineries in two EU states and a near-half stake in a Western European refinery. The sanctions bar U.S. entities from dealing with the named firms and threaten secondary sanctions on foreign banks that process their transactions, complicating cross-border sales and financing; one rival's foreign refinery stake has been placed in government custody.