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,
Rotenberg (hills) Rotenberg (hills) The Rotenberg is a hill range, up to 317.3 m high, in the Lower Saxon Hills in southeastern Lower Saxony, Germany. The Rotenberg ridge is oriented northwest-southeast and measures about 14 kilometres long by 2 kilometres wide. It lies in the district of Göttingen in the southeastern corner of the Lower Saxon Hills. It is located on the southwestern Harz Foreland roughly between Wulften to the northwest, Hattorf am Harz and Pöhlde to the north, Silkerode to the east, Rhumspringe and Gieboldehausen to the south and Bilshausen to the west. Somewhat further away are Osterode am Harz to