Gazprom Neft is a vertically integrated Russian oil company. Its principal activities concern oil and gas exploration, production, refining and marketing. Co. conducts its operations through the following subsidiaries: Noyabrsk, engaged in the exploration, production and development of oil and gas from its fields in the south Yamalo-Nentsk region and the northern part of the Khanti-Mansisk region; Omsk Refinery is engaged in the production of refined petroleum products at its refinery in Omsk, Western Siberia; Nefteprodukt, engaged in marketing operations through its retail outlets in the Omsk region; Geofizika provides exploration and technical services in the Noyabrsk region.