1,466 articles
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.
Emirates National Oil Company
Emirates National Oil Company (ENOC) is a Government of Dubai-owned oil and gas company established in 1993, with more than 30 subsidiaries serving 60 markets.
Empire Petroleum Corporation
Empire Petroleum Corporation is a Tulsa, Oklahoma-based independent oil and gas company that acquires and optimizes mature producing properties, with operations in New Mexico, North Dakota, Texas, and Louisiana.
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.
Enauta
Enauta was a Brazilian oil and gas producer that operated the Atlanta heavy-oil field in the Santos Basin and merged into 3R Petroleum in 2024, forming Brava Energia.
Enbridge Ingleside Energy Center
The Enbridge Ingleside Energy Center is a crude oil storage and marine export terminal in Ingleside, Texas, near Corpus Christi, the largest in the United States by volume.
Encino Acquisition Partners
Encino Acquisition Partners was a Houston-based oil and gas company operating in Ohio's Utica shale, formed in 2017 and sold to EOG Resources in 2025 for $5.6 billion.
ENEOS Group
ENEOS Group (ENEOSグループ) is a Japanese energy and materials corporate group built from the mergers of Nippon Oil, Nippon Mining, and TonenGeneral, renamed from JXTG Holdings in 2020.
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.
Energy Development Oman
Energy Development Oman (EDO) is Oman's wholly state-owned energy holding company, established by royal decree in 2020, holding a 60 percent stake in Petroleum Development Oman and owning the green hydrogen body Hydrom.
Eni
Eni, originally Ente Nazionale Idrocarburi, is an Italian integrated energy company founded in 1953 under Enrico Mattei, controlled by the Italian state and operating in 62 countries.
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.
Enquest
EnQuest PLC is a British independent oil and gas company focused on mature, late-life assets in the UK North Sea and South East Asia, listed in London.
Ensign Energy Services
Ensign Energy Services is a Calgary-based oilfield services company, incorporated in 1987, providing land-based contract drilling and well servicing to oil and gas industries in Canada, the United States, and internationally.
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.
Equinor
Equinor, until May 2018 named Statoil, is a Norwegian state-majority-owned energy company headquartered in Stavanger, producing oil and gas on the Norwegian continental shelf and building offshore wind.
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.
Esso
Esso is a fuel brand of ExxonMobil, named for the initials S and O of Standard Oil and introduced in 1926, sold today in Europe, Canada, and other markets outside the United States.
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.
Evolution Petroleum Corporation
Evolution Petroleum Corporation (NYSE American: EPM) is a Houston-based energy company that holds non-operated working, mineral, and royalty interests in US oil and gas properties.
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.
Expro Group
Expro Group is an international energy services company serving oil, gas, and geothermal operators in more than 50 countries, founded in 1973 and listed on the NYSE under XPRO.
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.
Extreme-pressure additive
An extreme-pressure (EP) additive is a chemical compound blended into a lubricant that reacts with metal under heavy load, forming a protective film that prevents seizure and severe wear.
ExxonMobil
ExxonMobil, formally Exxon Mobil Corporation, is an American integrated oil and gas company formed in 1999 by the merger of Exxon and Mobil, with brands including Exxon, Esso, and Mobil.
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.