Vityaz (ATV) used effectively to transport military hardware and non-military equipment in severe climatic conditions of the northern part of Russia, in Siberia, and Far East, as well as in the desert. Eventually their performance was found superior to demands, as they outperformed all Russian-made and foreign vehicles of this class. An intensive research and development program continued up to 1985, creating standardised series comprising: Today, Vityaz CTVs are in use throughout the whole territory of Russia, as well as in Arctic and Antarctica. They are an invaluable part of the transport services for prominent companies such as Gazprom JSC, Rosneftegazstroi, Rosneftegaz
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