Midway-Sunset Oil Field

E152145

oil field petroleum reservoir

Midway-Sunset Oil Field is one of California’s largest and oldest producing oil fields, located in the southern San Joaquin Valley.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (1)

Label	Occurrences
Midway-Sunset Oil Field canonical	4

Statements (43)

Predicate	Object
instanceOf	oil field ⓘ petroleum reservoir ⓘ
commodity	petroleum ⓘ
contains	numerous production wells ⓘ steam injection wells ⓘ
continent	North America ⓘ
continuedProduction	21st century ⓘ
country	United States of America ⓘ surface form: United States
discovered	1894 ⓘ
economicImportance	major contributor to regional economy of Kern County ⓘ
enhancedRecoveryTechnique	cyclic steam stimulation ⓘ steam flooding ⓘ
eraOfDevelopment	early 20th century ⓘ
geologicalAge	Tertiary formations ⓘ
geologicalBasin	San Joaquin River Basin ⓘ surface form: San Joaquin Basin
hasEnvironmentalConcern	air quality impacts ⓘ groundwater contamination risk ⓘ land subsidence risk ⓘ
hasInfrastructure	pipelines ⓘ steam generation facilities ⓘ tank farms ⓘ
locatedIn	California, United States ⓘ surface form: California Kern County ⓘ surface form: Kern County, California San Joaquin Valley ⓘ
locatedInTimeZone	Pacific Time Zone ⓘ
locatedNear	Maricopa, California ⓘ Taft, California ⓘ
onshoreOrOffshore	onshore ⓘ
operatorType	multiple operators ⓘ
partOf	California oil fields ⓘ surface form: California oil and gas industry
primaryHydrocarbon	heavy oil ⓘ
productionMethod	primary recovery ⓘ secondary recovery ⓘ thermal enhanced oil recovery ⓘ
region	San Joaquin Valley ⓘ surface form: southern San Joaquin Valley
regulatoryAuthority	CalGEM ⓘ Geologic Energy Management Division ⓘ surface form: California Geologic Energy Management Division
resourceType	crude oil ⓘ
sedimentaryBasinType	forearc basin ⓘ
significance	one of the largest oil fields in California ⓘ one of the oldest producing oil fields in California ⓘ
startOfProduction	1894 ⓘ
state	California, United States ⓘ surface form: California

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: Midway-Sunset Oil Field
Description of subject: Midway-Sunset Oil Field is one of California’s largest and oldest producing oil fields, located in the southern San Joaquin Valley.

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Kern County → containsOilField → Midway-Sunset Oil Field ⓘ

Taft → knownFor → Midway-Sunset Oil Field ⓘ

Taft → locatedNear → Midway-Sunset Oil Field ⓘ

Taft, California → near → Midway-Sunset Oil Field ⓘ