Gazprom Neft Board As of 31 December 2012, Gazprom Neft and its subsidiaries hold the mineral rights to 74 license areas located in 11 regions of Russia. In Serbia, the Gazprom Neft's subsidiary Naftna Industrija Srbije, holds 69 licenses. Based on an audit of reserves conducted by DeGolyer and MacNaughton and according to the Petroleum Resources Management System standards, the company's proven reserves at the end of 2012 totaled 1.2 billion tonnes of oil equivalent, and its reserve replacement ratio was over 286%. Most of the company's oil production operations in Russia are carried out by three subsidiaries: Gazpromneft-Noyabrskneftegaz, Gazpromneft-Khantos and Gazpromneft-Vostok.
Gazprom Neft Messoyakhaneftegas, an equally owned joint venture with TNK-BP, holds the licenses for both blocks with Gazprom Neft as operator. The recoverable C1+C2 reserves of both blocks total 620 million tonnes of primarily heavy oil. The fields were discovered in the 1980s and are the most northern-located onshore Russian fields. The Messoyakha oil and gas fields are located on the Gydan Peninsula in the Tazovsky District of the Yamalo-Nenets Autonomous Area - an Arctic climate zone with undeveloped infrastructure. By 2020 the Messoyakha fields are expected to be producing 8 mln tonnes per year with the first million produced by 2016.