Gazprom where it is constructing Europe's tallest building for its new headquarters. Gazprom is the world`s largest oil producer, with producing oil through the largest natural gas field in the world, the Shtokman field. Gazprom was created in 1989 when the Soviet Ministry of Gas Industry was converted to a corporation, retaining its Russia-based assets. Gazprom is involved in the Russian Government's diplomatic efforts, setting of gas prices, and access to pipelines. Gazprom's production fields are located around the Gulf of Ob in Western Siberia. Plans have also been made to mine the Yamal Peninsula. Gazprom's gas transport system includes 158,200
Gazprom in the Nadym-Pur-Taz region (near the Gulf of Ob) in Yamalo-Nenets Autonomous Okrug in Western Siberia. Historically, the three largest fields are Medvezhe, Urengoy and Yamburg. After more than twenty years of production, the fields are now in decline. Production from the fields has decreased by twenty to twenty-five bcm per year. The production at Zaporliarnoe, Gazprom's fourth largest field, increased until 2004, offsetting the decline in the other fields. Since 2004, Gazprom has maintained production by activating new smaller fields and by purchasing production assets from other companies. Gazprom Neft produces crude oil. In 2005, Gazprom purchased 75 percent