1,082 articles
Elk Hills Oil Field
The Elk Hills Oil Field is a large oil and gas field in Kern County, California, once Naval Petroleum Reserve No. 1 and sold to Occidental Petroleum in 1998.
Emeraude Marine Oil and Gas Field
Emeraude Marine is a shallow-water offshore oil field off Pointe-Noire in the Republic of the Congo, discovered in 1969 as the country's first major oil field.
Enang Oil and Gas Field
Enang is an oil and gas field in the shallow offshore Niger Delta, Nigeria, discovered by Mobil in 1968, with production from 1974 across OML 67 and 70.
ENEOS Oita Refinery
The ENEOS Oita Refinery (大分製油所) is an oil refinery in Oita City, Japan, operated by ENEOS and the only refinery in Kyushu, with a capacity of 136,000 barrels per day.
Enping 23-1 Oil Field
Enping 23-1 (恩平23-1) is an offshore oil field in the Pearl River Mouth Basin, South China Sea, operated by CNOOC, which began production in 2017.
Epu Oil and Gas Field
The Epu Oil and Gas Field is an onshore field in OML 28 in Nigeria's Niger Delta, operated by Shell with first oil targeted for 2027.
Erha/Erha North Oil and Gas Field
The Erha/Erha North oil and gas field is a deepwater field offshore Nigeria in the Gulf of Guinea, operated by Esso, a subsidiary of ExxonMobil, producing since 2006.
Esah Oil and Gas Field
The Esah Oil and Gas Field is an offshore Mexican oil field in the Sonda de Campeche, discovered by Pemex's Esah-1 well in 2015, with 2P reserves of 43 million barrels.
Escravos
Escravos is a crude oil and natural gas complex at the mouth of the Escravos River in Nigeria's Niger Delta, operated by Chevron Nigeria Limited, and the name of the light sweet crude grade loaded there.
Espadarte Oil Field
The Espadarte Oil Field is a deepwater Petrobras field in Brazil's Campos Basin, about 110 km off Rio de Janeiro, discovered in 1988 with an estimated 428 million barrels.
Etelebou Oil and Gas Field
The Etelebou Oil and Gas Field is an operating onshore oil and gas field in Bayelsa State, Nigeria, long operated by Shell and known for its flow station at Ogboloma.
Expandable tubulars
Expandable tubulars are steel pipes and liners that are mechanically expanded in situ after being run into an oil or gas wellbore, keeping downhole size for zonal isolation and casing repair.
Extended-reach drilling
Extended-reach drilling (ERD) drills oil and gas wells whose horizontal reach is at least twice their vertical depth, coined by Mobil Oil in the early 1980s.
Extraction of petroleum
Extraction of petroleum is the set of industrial operations that bring crude oil from a subsurface reservoir to the surface, from drilling through primary, secondary, and enhanced recovery.
F28 Gas Field
F28 Gas Field is a producing natural gas field about 200 km offshore Sarawak, Malaysia, in Block SK308, operated by Sarawak Shell, with first gas in 2012.
Fahud Oil and Gas Field
Fahud Oil and Gas Field (فهود) is a large onshore oil field in northern Oman, operated by Petroleum Development Oman, whose 1967 startup began Oman's commercial oil production.
Faihaa Oil and Gas Field
The Faihaa Oil and Gas Field is an oil field in southern Iraq's Basra governorate, discovered in 2014, producing from the Mishrif and Yamama formations near the Iranian border.
Fanny-18B Oil and Gas Field
Fanny-18B is an operating onshore oil and gas field in Ecuador's Sucumbíos province, discovered in 1972, producing since 1975, and wholly owned by Andes Petroleum.
Farha South Oil Field
Farha South Oil Field is an onshore oil field in eastern central Oman, discovered in 2009 and the largest producing field of the Blocks 3 & 4 concession, operated by CC Energy Development.
Fedorovskoye Oil and Gas Field
Fedorovskoye is a giant oil and gas condensate field in the Khanty-Mansi Autonomous Okrug of Western Siberia, Russia, discovered in 1971, with about 1.5 billion tonnes of recoverable oil.
Fengcheng Oil and Gas Field
Fengcheng Oil and Gas Field (风城油田) is a shallow ultra-heavy-oil field in Karamay, Xinjiang, China, holding about 370 million tons of proven reserves and producing over 2.6 million tons in 2025.
Fenja Oil and Gas Field
Fenja is an oil and gas field in the Norwegian Sea, producing since April 2023 as a subsea tieback to the Njord A platform, operated by Vår Energi.
Firebag
Firebag is Suncor Energy's largest in situ oil sands operation, a steam-assisted gravity drainage complex 120 kilometers northeast of Fort McMurray, Alberta, producing 215,000 barrels of bitumen daily.
Floating production storage and offloading
A floating production storage and offloading (FPSO) vessel is a ship-shaped offshore facility that processes oil from subsea wells, stores it, and offloads it to tankers.
Flounder Oil and Gas Field
Flounder is an oil and gas field in the Gippsland Basin of Bass Strait, off Victoria, Australia, discovered in 1968 and producing oil from 1984.
Fluid catalytic cracking
Fluid catalytic cracking (FCC), or cat cracking, is a petroleum refining process introduced in 1942 that converts heavy gas oil into lighter products, chiefly high-octane gasoline.
Fluid coking
Fluid coking is a continuous refinery process that thermally cracks heavy petroleum residues, such as vacuum residuum, into gas, gasoline, gas oil, and coke, developed by Exxon.
Forcados Oil Terminal
The Forcados Oil Terminal is a Nigerian crude oil export terminal in the western Niger Delta, commissioned by Shell in 1971 to load the Forcados Blend grade.
Forcados Yokri Oil and Gas Field
Forcados Yokri is an oil and gas field in the Niger Delta of Nigeria, operated by Shell and among the largest in the NNPC/Shell joint venture.
Formation microimager
The formation microimager is a wireline well-logging tool producing high-resolution electrical images of the borehole wall; its successor, the Fullbore Formation MicroImager (FMI), was introduced by Schlumberger.