Unocal Corporation
E315065
Unocal Corporation was a major American oil and gas company, historically known for its exploration and production activities in the United States and Asia, before being acquired by Chevron.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Unocal Corporation canonical | 4 |
| Unocal | 3 |
| Unocal (predecessor companies) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2952313 — 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: Unocal Corporation Context triple: [Chevron Corporation, notableAcquisition, Unocal Corporation]
-
A.
Sinclair Oil Corporation
Sinclair Oil Corporation is an American petroleum company best known for its dinosaur logo and network of gas stations and refineries across the United States.
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B.
Oil Center
Oil Center is a small unincorporated community in Lea County, New Mexico, historically associated with the region’s petroleum industry.
-
C.
Kinross
Kinross is a small historic town in Perth and Kinross, Scotland, situated near Loch Leven and known as a gateway between central Scotland and the Highlands.
-
D.
Kerr-McGee Oil Industries
Kerr-McGee Oil Industries was a major American energy company involved in oil and gas exploration, production, and chemical manufacturing before its acquisition by Anadarko Petroleum in 2006.
-
E.
Halliburton
Halliburton is a major American multinational corporation that provides products and services to the oil and gas industry worldwide.
- 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: Unocal Corporation Target entity description: Unocal Corporation was a major American oil and gas company, historically known for its exploration and production activities in the United States and Asia, before being acquired by Chevron.
-
A.
Sinclair Oil Corporation
Sinclair Oil Corporation is an American petroleum company best known for its dinosaur logo and network of gas stations and refineries across the United States.
-
B.
Oil Center
Oil Center is a small unincorporated community in Lea County, New Mexico, historically associated with the region’s petroleum industry.
-
C.
Kinross
Kinross is a small historic town in Perth and Kinross, Scotland, situated near Loch Leven and known as a gateway between central Scotland and the Highlands.
-
D.
Kerr-McGee Oil Industries
Kerr-McGee Oil Industries was a major American energy company involved in oil and gas exploration, production, and chemical manufacturing before its acquisition by Anadarko Petroleum in 2006.
-
E.
Halliburton
Halliburton is a major American multinational corporation that provides products and services to the oil and gas industry worldwide.
- F. None of above. chosen
Statements (49)
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: Unocal Corporation Description of subject: Unocal Corporation was a major American oil and gas company, historically known for its exploration and production activities in the United States and Asia, before being acquired by Chevron.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Unocal Corporation
subject linked to:
Union Oil
linked to: Unocal Corporation
linked to: Unocal Corporation
subject linked to:
Yadana gas project in Myanmar