Arctic oil and gas development requires specialized techniques for production and people. The Shtokman gas field is one of the world's largest, with 113 Tcf to 131 Tcf (3.2 Tern to 3.7 Tern) of gas and more than 227 million bbl (31 million tons) of gas condensate. Although discovered in 1988, it was not developed at the time, largely because of its location 1,050 ft (320 m) under the surface of the ice-cold Barents Sea, 373 miles (600 km) north of Russia's Kola Peninsula.
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