American Ethane Company website nor by its publications although these foreigners have significant interests in American Ethane. Finally, Konstantin Nikolaev is a partner and close associate of Vladimir Putin's inner circle through Igor Levitin, Alexey Mordashov, Arkady Rotenberg, and Gennady Timchenko. American Ethane Company American Ethane Company, LLC (AEC) is the largest producer of ethane in the United States. It is a Houston, Texas, based American petroleum company established in January 2014 with offices in New Orleans. It is privately held with large investments from Russian oligarchs who are close to Vladimir Putin's inner circle. As of July 2018, Konstantin Nikolaev, Mikhail Yuriev,
Marc Rotenberg the Norbert Wiener Award for Social and Professional Responsibility, the American Lawyer Top Lawyers Under 45, and the Vicennial Medal (2012) from Georgetown University. He was included in the "Lawdragon 500", a listing of the leading lawyers in America. Marc Rotenberg grew up in Boston, Massachusetts. His brother Jonathan Rotenberg founded the Boston Computer Society at age 13. Marc is married to Anna Markopoulos Rotenberg, an ESL teacher in the District of Columbia Public Schools. A tournament chess player, Rotenberg is a three-time Washington, DC Chess Champion (2007, 2008, 2010) and works to promote chess in the DC public schools