<P> The Gullfaks oil field was discovered in 1978 . The Snorre Field was discovered in 1979, producing from the Triassic Lunde Formation and the Triassic - Jurassic Statfjord Formation, both fluvial sandstones in a mudstone matrix . The Oseberg oil field and Troll gas field were also discovered in 1979 . The Miller oilfield was discovered in 1983 . The Alba Field produces from sandstones in the middle Eocene Alba Formation at 1860 m subsea and was discovered in 1984 in UKCS Block 16 / 26 . The Smorbukk Field was discovered in 1984 in 250--300 m of water that produces from Lower to Middle Jurassic sandstone formations within a fault block . The Snohvit Gas Field and the Draugen oil field were discovered in 1984 . The Heidrun oil field was discovered in 1985 . </P> <P> The largest UK field discovered in the past 25 years is Buzzard also located off Scotland, found in June 2001 with producible reserves of almost 64 × 10 m3 (400m bbl) and an average output of 28,600 m3 to 30,200 m3 (180,000 - 190,000 bbl) per day . </P> <P> The largest field found in the past five years on the Norwegian part of the North Sea, is the Johan Sverdrup oil field which was discovered in 2010, with further oil of the same field was discovered the next year . Total reserves of the field are estimated at 1.7 to 3.3 billion barrels of gross recoverable oil and Johan Sverdrup is expected to produce 120,000 to 200,000 barrels of oil per day . Production start is planned to happen in 2018 . It is one of the largest discoveries made in the Norwegian Continental Shelf . </P> <P> As of January 2015, the North Sea was the world's most active offshore drilling region with 173 active rigs drilling . By May 2016, the North Sea oil&gas industry was financially stressed by the reduced oil prices, and called for government support . </P>

Where are the oil and natural gas deposits found in europe