Urengoy

The Urengoy gas field is located in northwestern Siberia, Russia, east of the Gulf of Ob and near the Arctic Circle. Discovered in 1966, it is one of the world's largest natural gas fields, with estimated initial reserves of 8.1 trillion cubic meters (286 trillion cubic feet). Production began in 1978, and despite a decline from its peak output, it remains the world's largest producing gas field. The field contains gas in multiple reservoirs, with the shallowest being from the Late Cretaceous period. The exploitation of natural gas deposits, including Urengoy, began in the early 1970s, transforming the region's economy from traditional reindeer herding and fishing.12