Ekofisk oil field
E1011711
Ekofisk oil field is a major North Sea offshore oil and gas field, among the earliest developed in the region and significant in establishing Norway’s petroleum industry.
All labels observed (3)
| Label | Occurrences |
|---|---|
| North Sea oil fields | 4 |
| Ekofisk oil field canonical | 2 |
| Brent oil field | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12923418 — 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: Ekofisk oil field Context triple: [Phillips Petroleum Company, notableField, Ekofisk oil field]
-
A.
White Rose oil field
The White Rose oil field is an offshore petroleum field located in the Jeanne d’Arc Basin off the coast of Newfoundland and Labrador, Canada, known for its harsh operating environment and use of floating production, storage, and offloading (FPSO) technology.
-
B.
Hibernia oil field
Hibernia oil field is a major offshore oil production site located on the Grand Banks of Newfoundland and Labrador, Canada, known for its massive gravity-based platform and harsh North Atlantic operating environment.
-
C.
Zeit Bay oil field
Zeit Bay oil field is a major Egyptian offshore oil field located in the Gulf of Suez, known for its significant crude oil production.
-
D.
Ghawar oil field
Ghawar oil field is the world’s largest conventional oil field, located in Saudi Arabia and a major source of the country’s crude oil production.
-
E.
Cymric Oil Field
Cymric Oil Field is a major petroleum-producing area in Kern County, California, known for its heavy oil reserves and extensive steamflood operations.
- 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: Ekofisk oil field Target entity description: Ekofisk oil field is a major North Sea offshore oil and gas field, among the earliest developed in the region and significant in establishing Norway’s petroleum industry.
-
A.
White Rose oil field
The White Rose oil field is an offshore petroleum field located in the Jeanne d’Arc Basin off the coast of Newfoundland and Labrador, Canada, known for its harsh operating environment and use of floating production, storage, and offloading (FPSO) technology.
-
B.
Hibernia oil field
Hibernia oil field is a major offshore oil production site located on the Grand Banks of Newfoundland and Labrador, Canada, known for its massive gravity-based platform and harsh North Atlantic operating environment.
-
C.
Zeit Bay oil field
Zeit Bay oil field is a major Egyptian offshore oil field located in the Gulf of Suez, known for its significant crude oil production.
-
D.
Ghawar oil field
Ghawar oil field is the world’s largest conventional oil field, located in Saudi Arabia and a major source of the country’s crude oil production.
-
E.
Cymric Oil Field
Cymric Oil Field is a major petroleum-producing area in Kern County, California, known for its heavy oil reserves and extensive steamflood operations.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
gas field
ⓘ
offshore oil field ⓘ |
| basin | Norwegian sector of the North Sea NERFINISHED ⓘ |
| block | 2/4 ⓘ |
| contains |
Ekofisk 2/4 A platform
NERFINISHED
ⓘ
Ekofisk 2/4 B platform NERFINISHED ⓘ Ekofisk 2/4 C platform NERFINISHED ⓘ Ekofisk 2/4 J platform NERFINISHED ⓘ Ekofisk 2/4 K platform NERFINISHED ⓘ Ekofisk 2/4 M platform NERFINISHED ⓘ Ekofisk 2/4 Q platform NERFINISHED ⓘ Ekofisk 2/4 X platform NERFINISHED ⓘ Ekofisk Center NERFINISHED ⓘ |
| country | Norway ⓘ |
| developmentStatus | producing ⓘ |
| discovered | 1969 ⓘ |
| exportRoute |
gas pipeline to Emden, Germany
ⓘ
oil pipeline to Teesside, United Kingdom ⓘ |
| geologicalAge |
Paleocene
NERFINISHED
ⓘ
Upper Cretaceous ⓘ |
| geologicalFormation | chalk reservoir ⓘ |
| issue | seabed subsidence ⓘ |
| licensee |
ConocoPhillips
NERFINISHED
ⓘ
Eni NERFINISHED ⓘ Equinor NERFINISHED ⓘ Petoro NERFINISHED ⓘ TotalEnergies NERFINISHED ⓘ |
| locatedIn | North Sea ⓘ |
| mitigationMeasure |
construction of new platforms
ⓘ
platform jacking and reinforcement ⓘ |
| namedAfter | Ekofisk bank in the North Sea ⓘ |
| nearbyField |
Eldfisk oil field
NERFINISHED
ⓘ
Embla field NERFINISHED ⓘ Tor field NERFINISHED ⓘ |
| operator | ConocoPhillips NERFINISHED ⓘ |
| partOf | Greater Ekofisk Area NERFINISHED ⓘ |
| platformType |
accommodation platforms
ⓘ
fixed platforms ⓘ jack-up drilling rigs ⓘ |
| region | Norwegian Continental Shelf NERFINISHED ⓘ |
| regulator | Norwegian Petroleum Directorate NERFINISHED ⓘ |
| resourceType |
crude oil
ⓘ
natural gas ⓘ natural gas liquids ⓘ |
| significance |
major contributor to Norway’s oil and gas production
ⓘ
one of the earliest major oil fields developed in the North Sea ⓘ pioneering field for Norway’s offshore petroleum industry ⓘ |
| startOfProduction | 1971 ⓘ |
| waterDepth | about 70 meters ⓘ |
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: Ekofisk oil field Description of subject: Ekofisk oil field is a major North Sea offshore oil and gas field, among the earliest developed in the region and significant in establishing Norway’s petroleum industry.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Brent oil field
this entity surface form:
North Sea oil fields
this entity surface form:
North Sea oil fields
subject surface form:
Flotta oil terminal
this entity surface form:
North Sea oil fields
this entity surface form:
North Sea oil fields