The current oil production in Serbia amounts to over 1.1 million tons of oil equivalent and satisfies some 43% of country's needs while the rest is imported. National petrol company, Naftna Industrija Srbije (NIS), was acquired in 2008 by Gazprom Neft. The company's refinery in Pančevo (capacity of 4.8 million tons) is one of the most modern oil-refineries in Europe; it also operates network of 334 filling stations in Serbia (74% of domestic market) and additional 36 stations in Bosnia and Herzegovina, 31 in Bulgaria, and 28 in Romania. There are 155 kilometers of crude oil pipelines connecting Pančevo and Novi Sad refineries as a part of trans-national Adria oil pipeline.