Gazprom Libya, Kazakhstan, Uzbekistan, Kyrgyzstan and Tajikistan. Gazprom's Unified Gas Supply System (UGSS) includes of gas trunklines and branches and 218 compressor stations with a 41.4 GW capacity. The UGSS is the largest gas transmission system in the world. In 2008, the transportation system carried of gas. The UGSS has reached its capacity. Major transmission projects include the Nord Stream and South Stream pipelines, as well as pipelines inside Russia. In 2006, Gazprom sold of gas to domestic customers; to the rest of Europe; and to CIS countries and the Baltic states. Gazprom receives about 60 percent of its revenue from
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