The Mumbai High Field, formerly called the Bombay High Field, is an offshore oilfield 176 km (109 mi) off the west coast of Mumbai, in Gulf of Cambay region of India, in about 75 m (246 ft) of water. The oil operations are run by India's Oil and Natural Gas Corporation (ONGC).
The Wilmington Oil Field is a prolific petroleum field in Los Angeles County in southern California in the United States. Discovered in 1932, it is the third largest oil field in the United States in terms of cumulative oil production. The field runs roughly southeast to northwest through the Los Angeles Basin, stretching from the middle of San Pedro Bay through Long Beach and east of the Palos Verdes Peninsula. The field originally contained approximately 3 billion barrels (480,000,000 m3) of reserves. In 2013, the USGS estimated future potential production from the combined Wilmington-Belmont oilfield could be around 900 million barrels (140,000,000 m3).
North Sea oil is a mixture of hydrocarbons, comprising liquid petroleum and natural gas, produced from petroleum reservoirs beneath the North Sea.
Ouargla or Warqla is a province (wilaya) in eastern Algeria, with a population of 708 463 inhabitants in 2019. Its capital is Ouargla. Other localities include Hassi Ben Abdellah and Hassi Messaoud. It borders Ouled Djellal Province, El M'Ghair Province Touggourt Province, and El Oued Province to the north, Tunisia to the east, In Salah Province and Illizi Province to the south, and El Menia Province, Ghardaia Province and Djelfa Province to the west. It contains the Issaouane Erg desert.
Long Forties is a zone of the northern North Sea that is fairly consistently forty fathoms deep.
The Statfjord oil field is a large oil and gas field covering 580 km2 along the U.K.-Norwegian boundary of the North Sea at a water depth of 145 m, discovered in 1974 by Mobil and since 1987 operated by Equinor.
Gullfaks is an oil and gas field in the Norwegian sector of the North Sea operated by Equinor. It was discovered in 1978, in block 34/10, at a water depth of 130-230 meters. The initial recoverable reserve is 2.1 billion barrels, and the remaining recoverable reserve in 2004 is 234 million barrels. This oil field reached peak production in 2001 at 180,000 barrels per day (29,000 m3/d). It has satellite fields Gullfaks South, Rimfaks, Skinfaks and Gullveig.
Troll is a natural gas and oil field in the Norwegian sector of the North Sea, one of the biggest in the North Sea, holding 40% of Norway’s gas – it also possesses significant quantities of oil, in thin zones under the gas cap, to the west of the field. The field as a whole consists of the main Troll East and Troll West structures in blocks 31/2, 31/3, 31/5 and 31/6, about 65 kilometres (40 mi) west of Kollsnes, near Bergen. Most of the gas lies in Troll East.
The Piper oilfield is a substantial North Sea oilfield covering 30.1 km2. It lies roughly halfway between Aberdeen and Bergen, at the eastern end of the Moray Firth basin. Oil extracted from it is piped to Scotland, where it is stabilised at an oil plant on the island of Flotta, in the Orkney archipelago, while gas is shipped via the Frigg gas pipeline. In June 1975, the Piper Alpha oil platform was placed over the field in 144 metres of water, secured in place by 24 piles extending 116 metres beneath the seabed. The platform was designed for simultaneous drilling and production. Piper Alpha was the site of the world's deadliest oil platform disaster when it was destroyed by an explosion in 1988, with the loss of 167 lives. Piper Bravo was installed in 1992. Talisman Energy acquired a controlling interest in 2000.
Valhall is an oil field in the Norwegian sector of the North Sea. Discovered in 1975, production began in 1982 and is expected to continue until 2050. Valhall is located in 70 metres of water. It produces from chalk in the Tor and Hod Formations of Late Cretaceous age. The reservoir depth is approximately 2,400 metres.
Norpipe is a subsea oil and natural gas pipelines system in the North Sea. It supplies oil from the Norwegian Ekofisk and associated fields in the North Sea to the United Kingdom and natural gas to Germany.
The Forties Oil Field is the second largest oil field in the North Sea, after the Clair oilfield, which is located 110 miles east of Aberdeen. It was discovered in 1970 and first produced oil in 1975 under ownership of British Petroleum, now called BP.
The Sirte Basin is a late Mesozoic and Cenozoic triple junction continental rift along northern Africa that was initiated during the late Jurassic Period. It borders a relatively stable Paleozoic craton and cratonic sag basins along its southern margins. The province extends offshore into the Mediterranean Sea, with the northern boundary drawn at the 2,000 meter (m) bathymetric contour. It borders in the north on the Gulf of Sidra and extends south into northern Chad.
Draugen is an oil field in the Norwegian Sea with a sea depth of 250 metres (800 ft). It had been operated by A/S Norske Shell until sold to AS OKEA in 2018. The field has been developed with a concrete fixed facility and integrated topside. Stabilized oil is stored in tanks in the base of the facility. Two flowlines connect the facility to a floating loading buoy.
Frigg gas field is a natural gas field on Norwegian block 25/1 in the North Sea, on the boundary between the United Kingdom and Norway. The field is named after the goddess Frigg. King Olav V of Norway officially opened production on 8 May 1978. Production was closed on 26 October 2004. The field is situated 230 kilometres (140 mi) northwest of Stavanger. Operator for the field was the French oil company Elf Aquitaine, which merged and changed name to Total S.A.
Oselvar is a subsea oil field, abandoned since April 2018, located 250 km (160 mi) southwest of Stavanger in the southern Norwegian section of the North Sea, close to the British border. Oselvar was discovered in 1991. The field is located at 23 kilometres (14 mi) distance from the Ula field to which it was tied back. The original estimated reserves at Oselvar were 38 million barrels of oil and 4 billion cubic metres of natural gas. The water depth at location is 72 metres (236 ft). In January 2022, DNO ASA reportedly had approval from Norway’s Petroleum Safety Authority (PSA) to remove subsea facilities from the Oselvar field. The Oselvar field installations were to be decommissioned by the end of 2022.
The Oklahoma City Oil Field is one of the world's giant petroleum fields and is located in Oklahoma City, Oklahoma in the United States of America. The field was opened just south of the city limits on December 4, 1928, and first entered Oklahoma City limits on May 27, 1930.
Tambar is an offshore oil field located in the southern Norwegian section of North Sea along with Ula and Gyda fields making up the UGT area, usually attributed to DONG Energy's main areas of exploration and production activity. The Ula field was discovered in 1983 and came online in 2001. Tambar was discovered in 1983 and became operational in July 2001. It contains confirmed 46.9 million m3 of oil.
Randi Martinsen is an American geologist and senior lecturer in the Department of Geology and Geophysics at the University of Wyoming.
