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,
Arkady Dvorkovich Arkady Dvorkovich Arkady Vladimirovich Dvorkovich (; born 26 March 1972) is a Russian public servant and economist, who was Deputy Prime Minister in Dmitry Medvedev's Cabinet from 21 May 2012 until 7 May 2018. He was previously an Assistant to the President of the Russian Federation from May 2008 to May 2012. Dvorkovich is considered to be a close confidant of Dmitry Medvedev and an important figure in Russian politics. He rose to prominence during Medvedev's presidency but has recently suffered from the resurgence of Igor Sechin. Since 2015, he is also the Chairman of the Board of the Directors