Gazprom investment. On 5 July 2006, the Federal Law, "On Gas Export", was passed, nearly unanimously, by the State Duma and on the 7 July 2006, by the Federation Council. On 18 July Putin signed the new legislation and on 20 July 2006, the law was published. It gave Gazprom the exclusive right to export natural gas from Russia. On 4 September 2012, the European Commission, a Brussels-based competition watchdog, announced an anti-trust investigation into Gazprom's activities. This was based on "concerns that Gazprom may be abusing its dominant market position in upstream gas supply markets." On 21 May 2014, in
Gazprom Neft These companies are developing fields in the Yamalo-Nenets and Khanty-Mansi autonomous areas and the Omsk, Tomsk, Tyumen and Irkutsk regions. Gazprom Neft also holds 50% stakes in three dependent companies: Slavneft, Tomskneft and Salym Petroleum Development. In 2010, Gazprom Neft partnered with Novatek to acquire 51%of SeverEnergia which owns Arktikgaz and Urengoil companies. In 2012, Gazprom Neft refined 43.3 million tonnes of oil. The company wholly or partly owns 5 oil refineries (the Omsk Oil Refinery, Moscow Oil Refinery, Slavneft-Yaroslavnefteorgsintez (YANOS) and two oil refineries in Pančevo and Novi Sad that belong to Naftna Industrija Srbije). The company operates around