San Joaquin Valley oil fields
E614192
The San Joaquin Valley oil fields are a major concentration of petroleum-producing areas in California’s Central Valley, known for some of the largest and most productive onshore oil fields in the United States.
All labels observed (3)
| Label | Occurrences |
|---|---|
| San Joaquin Valley oil fields canonical | 2 |
| Kern County oil-producing region | 1 |
| San Joaquin Valley west side oil fields | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6706556 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Joaquin Valley oil fields Context triple: [Belridge Oil Field, partOf, San Joaquin Valley oil fields]
-
A.
Kern River Oil Field
Kern River Oil Field is one of California’s largest and oldest producing oil fields, located near Bakersfield in Kern County.
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B.
Coalinga Oil Field
Coalinga Oil Field is a major petroleum-producing area in California’s San Joaquin Valley, historically significant for its early 20th-century oil boom and extensive heavy oil reserves.
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C.
California oil fields
California oil fields are expansive petroleum-producing regions in the state of California that have historically driven major economic development and inspired numerous cultural depictions of early 20th-century oil booms.
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D.
Fruitvale Oil Field
Fruitvale Oil Field is a significant petroleum-producing area in Kern County, California, known for its long history of oil extraction within the southern San Joaquin Valley.
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E.
Elk Hills oil field
The Elk Hills oil field is a major petroleum reserve in California that gained historical notoriety for its central role in the Teapot Dome scandal, one of the most infamous corruption cases in U.S. political history.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: San Joaquin Valley oil fields Target entity description: The San Joaquin Valley oil fields are a major concentration of petroleum-producing areas in California’s Central Valley, known for some of the largest and most productive onshore oil fields in the United States.
-
A.
Kern River Oil Field
Kern River Oil Field is one of California’s largest and oldest producing oil fields, located near Bakersfield in Kern County.
-
B.
Coalinga Oil Field
Coalinga Oil Field is a major petroleum-producing area in California’s San Joaquin Valley, historically significant for its early 20th-century oil boom and extensive heavy oil reserves.
-
C.
California oil fields
California oil fields are expansive petroleum-producing regions in the state of California that have historically driven major economic development and inspired numerous cultural depictions of early 20th-century oil booms.
-
D.
Fruitvale Oil Field
Fruitvale Oil Field is a significant petroleum-producing area in Kern County, California, known for its long history of oil extraction within the southern San Joaquin Valley.
-
E.
Elk Hills oil field
The Elk Hills oil field is a major petroleum reserve in California that gained historical notoriety for its central role in the Teapot Dome scandal, one of the most infamous corruption cases in U.S. political history.
- F. None of above. chosen
Statements (73)
| Predicate | Object |
|---|---|
| instanceOf | oil field region ⓘ |
| contains |
Antelope Hills Oil Field
NERFINISHED
ⓘ
Belridge Oil Field NERFINISHED ⓘ Buttonwillow Oil Field NERFINISHED ⓘ Coalinga Oil Field NERFINISHED ⓘ Cymric Oil Field NERFINISHED ⓘ Devils Den Oil Field NERFINISHED ⓘ Edison Oil Field NERFINISHED ⓘ Elk Hills Oil Field NERFINISHED ⓘ Fruitvale Oil Field NERFINISHED ⓘ Jacalitos Oil Field NERFINISHED ⓘ Kern Front Oil Field NERFINISHED ⓘ Kern River Oil Field NERFINISHED ⓘ Kettleman Middle Dome Oil Field NERFINISHED ⓘ Kettleman North Dome Oil Field NERFINISHED ⓘ Kettleman South Dome Oil Field NERFINISHED ⓘ Lost Hills Oil Field NERFINISHED ⓘ McKittrick Oil Field NERFINISHED ⓘ Midway-Sunset Oil Field NERFINISHED ⓘ Monarch Oil Field NERFINISHED ⓘ Mount Poso Oil Field NERFINISHED ⓘ North Belridge Oil Field NERFINISHED ⓘ North Coles Levee Oil Field NERFINISHED ⓘ North Kern Front Oil Field NERFINISHED ⓘ North Shafter Oil Field NERFINISHED ⓘ Nose Oil Field (San Joaquin Valley) NERFINISHED ⓘ Paloma Oil Field NERFINISHED ⓘ Poso Creek Oil Field NERFINISHED ⓘ Pyramid Hills Oil Field NERFINISHED ⓘ Rio Bravo Oil Field NERFINISHED ⓘ Rosedale Oil Field NERFINISHED ⓘ Round Mountain Oil Field NERFINISHED ⓘ Round Mountain area oil fields NERFINISHED ⓘ San Emidio Nose Oil Field NERFINISHED ⓘ Semitropic Oil Field NERFINISHED ⓘ Shafter Oil Field NERFINISHED ⓘ South Belridge Oil Field NERFINISHED ⓘ South Coles Levee Oil Field NERFINISHED ⓘ Tejon Extension Oil Field NERFINISHED ⓘ Tejon Oil Field NERFINISHED ⓘ Wasco Oil Field NERFINISHED ⓘ West Coalinga Oil Field NERFINISHED ⓘ Yokuts Oil Field NERFINISHED ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| developmentPeak | 20th century ⓘ |
| discovered | late 19th century ⓘ |
| economicImportance |
major regional employer
ⓘ
significant contributor to California oil production ⓘ |
| geologicalBasin | San Joaquin Basin NERFINISHED ⓘ |
| geologicalProvince | California Central Valley petroleum province NERFINISHED ⓘ |
| hydrocarbonType |
heavy oil
ⓘ
medium-gravity oil ⓘ |
| industrySector | petroleum industry ⓘ |
| knownFor |
high cumulative petroleum output
ⓘ
large onshore oil production ⓘ |
| locatedIn |
Central Valley of California
NERFINISHED
ⓘ
San Joaquin Valley NERFINISHED ⓘ |
| locatedInAdministrative | California NERFINISHED ⓘ |
| majorCityNearby |
Bakersfield, California
NERFINISHED
ⓘ
Coalinga, California NERFINISHED ⓘ Taft, California NERFINISHED ⓘ |
| partOf |
California oil fields
NERFINISHED
ⓘ
onshore oil fields of the United States ⓘ |
| product |
crude oil
ⓘ
natural gas (associated) ⓘ |
| ranking | among largest onshore oil field concentrations in the United States ⓘ |
| regulatoryAuthority | California Geologic Energy Management Division NERFINISHED ⓘ |
| typicalExtractionMethods |
cyclic steam stimulation
ⓘ
primary recovery ⓘ secondary recovery ⓘ steam flooding ⓘ thermal enhanced oil recovery ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: San Joaquin Valley oil fields Description of subject: The San Joaquin Valley oil fields are a major concentration of petroleum-producing areas in California’s Central Valley, known for some of the largest and most productive onshore oil fields in the United States.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Kern County oil-producing region
this entity surface form:
San Joaquin Valley west side oil fields