Numaligarh Refinery Limited
E686192
Numaligarh Refinery Limited is a public sector oil refinery company in India known for operating the Numaligarh Refinery in Assam and producing a range of petroleum products.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Numaligarh Refinery | 1 |
| Numaligarh Refinery Limited canonical | 1 |
| Numaligarh Refinery Limited (historically, before stake transfers) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7733364 — 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: Numaligarh Refinery Limited Context triple: [Dibrugarh district, hasCompanyPresence, Numaligarh Refinery Limited]
-
A.
Indian Oil Corporation
Indian Oil Corporation is India’s largest state-owned oil and gas company, engaged in refining, transporting, and marketing petroleum products across the country and abroad.
-
B.
Oil India Limited
Oil India Limited is a major Indian state-owned oil and gas company engaged in the exploration, production, and transportation of crude oil and natural gas.
-
C.
Jamnagar refinery complex
The Jamnagar refinery complex is one of the world’s largest oil refining hubs, located in western India and operated primarily by Reliance Industries.
-
D.
Assam Oil Company
Assam Oil Company was a historic petroleum exploration and production company in India, known for pioneering oil operations in the Assam region during the early 20th century.
-
E.
Digboi refinery
Digboi refinery is one of India’s oldest oil refineries, historically significant for processing crude from the pioneering Digboi oil field in Assam.
- 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: Numaligarh Refinery Limited Target entity description: Numaligarh Refinery Limited is a public sector oil refinery company in India known for operating the Numaligarh Refinery in Assam and producing a range of petroleum products.
-
A.
Indian Oil Corporation
Indian Oil Corporation is India’s largest state-owned oil and gas company, engaged in refining, transporting, and marketing petroleum products across the country and abroad.
-
B.
Oil India Limited
Oil India Limited is a major Indian state-owned oil and gas company engaged in the exploration, production, and transportation of crude oil and natural gas.
-
C.
Jamnagar refinery complex
The Jamnagar refinery complex is one of the world’s largest oil refining hubs, located in western India and operated primarily by Reliance Industries.
-
D.
Assam Oil Company
Assam Oil Company was a historic petroleum exploration and production company in India, known for pioneering oil operations in the Assam region during the early 20th century.
-
E.
Digboi refinery
Digboi refinery is one of India’s oldest oil refineries, historically significant for processing crude from the pioneering Digboi oil field in Assam.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
company
ⓘ
oil refining company ⓘ public sector undertaking ⓘ |
| country | India ⓘ |
| hasAward | Navratna PSU status ⓘ |
| hasCSRActivity |
community development in nearby villages
ⓘ
education support programs in Assam ⓘ healthcare initiatives in Assam ⓘ |
| hasEnvironmentalInitiative | green belt development around refinery ⓘ |
| hasPipelineProject |
Numaligarh–Bongaigaon product pipeline
ⓘ
Numaligarh–Silghat crude oil pipeline ⓘ |
| hasProject | refinery expansion project in Assam ⓘ |
| hasRefiningCapacity | 3 million metric tonnes per annum ⓘ |
| hasSubsidiary | NRL Siliguri Marketing Terminal ⓘ |
| headquartersLocation |
Assam
ⓘ
Golaghat district ⓘ Numaligarh ⓘ |
| inception | 1993 ⓘ |
| industry |
oil and gas
ⓘ
petroleum refining ⓘ |
| locatedIn | Assam ⓘ |
| operates |
Numaligarh Refinery
ⓘ
linked to:
Numaligarh Refinery Limited
|
| ownedBy |
Government of Assam
ⓘ
Government of India ⓘ Oil India Limited ⓘ |
| parentOrganization | Oil India Limited ⓘ |
| product |
LPG
ⓘ
aviation turbine fuel ⓘ high speed diesel ⓘ kerosene ⓘ motor spirit ⓘ naphtha ⓘ paraffin wax ⓘ petroleum coke ⓘ sulphur ⓘ |
| regionServed |
Eastern India
ⓘ
linked to:
eastern India
North East India ⓘ
linked to:
Northeast India
|
| sector | public sector ⓘ |
| startOfOperations | 1999 ⓘ |
| website | https://www.nrl.co.in/ ⓘ |
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: Numaligarh Refinery Limited Description of subject: Numaligarh Refinery Limited is a public sector oil refinery company in India known for operating the Numaligarh Refinery in Assam and producing a range of petroleum products.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
Oil India Limited
→
hasSubsidiary
→
Numaligarh Refinery Limited (historically, before stake transfers)
ⓘ
linked to: Numaligarh Refinery Limited
linked to: Numaligarh Refinery Limited