1,466 articles
Uech Oil and Gas Field
Uech is a mature offshore oil and gas field in Mexican waters of the Gulf of Mexico off Tabasco, operated by Pemex and discovered in 1986.
Ugutskoye Oil Field
The Ugutskoye Oil Field (Угутское месторождение) is an operating oil field in the Surgut district of Western Siberia, Russia, near the village of Ugut, operated by Rosneft subsidiary RN-Yuganskneftegaz since 1988.
Ukpam Oil Field
The Ukpam Oil Field is an operating conventional oil field in Nigeria, discovered in 1989 and fully owned and operated by NNPC Ltd in concession OML 123.
Ula oil field
Ula is an oil field in block 7/12 of the southern Norwegian North Sea, discovered in 1976 and producing since 1986 under Aker BP, serving as the processing hub for the Tambar, Blane, and Oda fields.
Umm Al-Dalkh Oil Field
Umm Al-Dalkh is an offshore oil field about 25 km northwest of Abu Dhabi, United Arab Emirates, discovered in 1969 and producing since 1985, now operated by ADNOC Offshore.
Umm Gudair oil field
Umm Gudair oil field (أم قدير) is an onshore oil field in western Kuwait, discovered in 1962, operated by the Kuwait Oil Company, and counted among Kuwait's giant fields.
Umm Lulu
Umm Lulu, also written Umm al Lulu, is an offshore oil field in shallow Arabian Gulf waters about 30 km from Abu Dhabi, which produced first oil in 2014.
Umm Niqa oil field
Umm Niqa is a heavy oil field in northern Kuwait, operated by Kuwait Oil Company, producing about 22,000 barrels per day from the Lower Fars formation.
Umm Shaif oil field
Umm Shaif is an offshore oil field in the Arabian Gulf near Abu Dhabi, discovered in 1958 and the site of Abu Dhabi's first oil exports in 1962.
Umusadege oil field
The Umusadege oil field is an onshore field near Kwale in Delta State, Nigeria, discovered in 1974 and producing since 2008 under operator Midwestern Oil & Gas.
Unam oil field
The Unam oil field is a conventional oil and gas field in OML 67, offshore Nigeria south of Akwa Ibom State, producing under the NNPC and Mobil joint venture.
Underbalanced drilling
Underbalanced drilling (UBD) is a drilling technique in which wellbore pressure is deliberately kept below formation pressure, letting reservoir fluids flow to surface and reducing formation damage.
Union Oil Company of California
The Union Oil Company of California, known as Union Oil or Unocal, was an American oil company incorporated in Santa Paula in 1890 and acquired by ChevronTexaco in 2005.
United Energy Group
United Energy Group (联合能源集团) is a Hong Kong-listed independent energy company, founded by Chinese tycoon Zhang Hongwei, producing oil and gas in Pakistan, Egypt, and Iraq.
United Petroleum Development
United Petroleum Development Co., Ltd. is a Japanese oil exploration and production company, founded in 1970 and headquartered in Tokyo, owned by Cosmo, JX Nippon, and Mitsui.
Unity oil field
The Unity oil field is an operating conventional oil field in Unity State, South Sudan, discovered in 1980 and producing since 1996 under the operator GPOC.
Unvinskoye oil field
Unvinskoye oil field (Уньвинское) is an operating oil field in Usolsky District, Perm Krai, Russia, discovered in 1980 and wholly owned by operator Lukoil-Perm, with reserves of about 166 million barrels.
Upper Zakum oil field
Upper Zakum is a giant offshore oil field 84 km northwest of Abu Dhabi, discovered in 1963 and the world's second largest offshore oil field.
Upstream (petroleum industry)
Upstream is the segment of the petroleum industry covering exploration, extraction, and production of crude oil and natural gas, classified under NAICS 211 and followed by midstream and downstream refining.
Urals crude
Urals crude is Russia's primary export crude oil blend, a medium sour grade named after the Ural Mountains and priced in world markets at a differential to Brent.
Urdaneta Oeste oil field
Urdaneta Oeste, also called Urdaneta West, is a heavy-oil field on the western margin of Lake Maracaibo in northern Venezuela, discovered in 1955 with reserves of about 1.5 billion barrels.
Urnenskoye oil field
The Urnenskoye oil field (Урненское) is an operating onshore oil field in Uvat District, Tyumen Region, western Siberia, Russia, producing since 2009 and operated by Rosneft's RN-Uvatneftegaz.
Uryevskoye oil field
Uryevskoye oil field (Урьевское месторождение) is a medium-sized oil field in West Siberia, Russia, about 10 km from Langepas, discovered in 1971 and producing since 1978 under LUKOIL.
Usan oil field
The Usan oil field is a deepwater oil field in the eastern Niger Delta, offshore Nigeria, discovered in 2002 and producing since 2012, today operated by ExxonMobil.
Usinskoye oil field
Usinskoye oil field (Усинское месторождение) is a heavy-oil field in the Komi Republic, Russia, discovered in 1962 and operated by LUKOIL-Komi, whose viscous oil is recovered with steam-based thermal methods.
Ust-Tegusskoye oil field
Ust-Tegusskoye (Усть-Тегусское) is an onshore oil field in Uvat district, Tyumen Oblast, Russia, discovered in 1991, producing since 2009, and Rosneft's largest Uvat project field.
Utapate oil field
Utapate is an oil field in OML 13, Akwa Ibom State, Nigeria, source of a light, very low-sulfur crude blend launched for export in 2024.
Uzen oil field
The Uzen oil field (Kazakh: Өзен кенорны) is a large, mature oil field in western Kazakhstan discovered in 1961, which in the 1970s supplied half of Kazakh oil.
Vacuum gas oil
Vacuum gas oil is a heavy intermediate petroleum fraction from vacuum distillation, boiling between 370°C and 565°C, used as feedstock for catalytic cracking and hydrocracking.
Valaris
Valaris is a Bermuda-incorporated offshore drilling contractor formed from the 2019 merger of Ensco and Rowan, operating drillships and jackups worldwide and slated for acquisition by Transocean in 2026.