Wintershall Dea
E839065
Wintershall Dea is a major European independent oil and gas exploration and production company formed through the merger of Wintershall and DEA.
All labels observed (4)
| Label | Occurrences |
|---|---|
| DEA Deutsche Erdoel AG | 2 |
| Wintershall | 2 |
| Wintershall Dea canonical | 1 |
| Wintershall Dea Norge | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10068762 — 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: Wintershall Dea Context triple: [BASF, hasSubsidiary, Wintershall Dea]
-
A.
Uniper
Uniper is a German energy company focused on power generation and global energy trading, formed from the conventional energy business spun off from E.ON.
-
B.
Aker BP
Aker BP is a Norwegian oil and gas exploration and production company and one of the largest independent operators on the Norwegian Continental Shelf.
-
C.
Equinor
Equinor is a Norwegian state-owned energy company and one of the world’s leading producers of oil, gas, and increasingly renewable energy.
-
D.
Mellitah Oil and Gas
Mellitah Oil and Gas is a major Libyan oil and gas company involved in the exploration, production, and export of hydrocarbons, operating key onshore and offshore fields in partnership with international firms.
-
E.
Petroleum Group
The Petroleum Group is a specialist division of the Geological Society of London focused on the study and professional exchange of knowledge related to petroleum geoscience and hydrocarbon exploration.
- 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: Wintershall Dea Target entity description: Wintershall Dea is a major European independent oil and gas exploration and production company formed through the merger of Wintershall and DEA.
-
A.
Uniper
Uniper is a German energy company focused on power generation and global energy trading, formed from the conventional energy business spun off from E.ON.
-
B.
Aker BP
Aker BP is a Norwegian oil and gas exploration and production company and one of the largest independent operators on the Norwegian Continental Shelf.
-
C.
Equinor
Equinor is a Norwegian state-owned energy company and one of the world’s leading producers of oil, gas, and increasingly renewable energy.
-
D.
Mellitah Oil and Gas
Mellitah Oil and Gas is a major Libyan oil and gas company involved in the exploration, production, and export of hydrocarbons, operating key onshore and offshore fields in partnership with international firms.
-
E.
Petroleum Group
The Petroleum Group is a specialist division of the Geological Society of London focused on the study and professional exchange of knowledge related to petroleum geoscience and hydrocarbon exploration.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
oil and gas company
ⓘ
public company ⓘ |
| businessActivity |
exploration of oil and gas
ⓘ
natural gas trading ⓘ production of oil and gas ⓘ |
| continent | Europe ⓘ |
| country | Germany ⓘ |
| describedAs | major European independent oil and gas exploration and production company ⓘ |
| explorationFocus |
offshore fields
ⓘ
onshore fields ⓘ |
| focusesOnResource |
crude oil
ⓘ
natural gas ⓘ |
| formedByMergerOf |
DEA Deutsche Erdoel AG
ⓘ
linked to:
Wintershall Dea
Wintershall ⓘ
linked to:
Wintershall Dea
|
| hasBusinessSegment |
midstream
ⓘ
upstream ⓘ |
| hasEnvironmentalCommitment |
reducing greenhouse gas emissions
ⓘ
supporting energy transition ⓘ |
| hasKeyMarket |
Egypt
ⓘ
Germany ⓘ Mexico ⓘ Norway ⓘ Russia ⓘ |
| hasMainOffice |
Hamburg
ⓘ
Kassel ⓘ |
| hasNumberOfEmployeesApprox | 2000-5000 ⓘ |
| hasSubsidiary |
Wintershall Dea Norge
ⓘ
linked to:
Wintershall Dea
|
| headquartersLocation |
Hamburg
ⓘ
Kassel ⓘ |
| industry |
energy
ⓘ
oil and gas ⓘ |
| languageOfWork |
English
ⓘ
German ⓘ |
| legalForm | Aktiengesellschaft ⓘ |
| majorShareholder |
BASF
ⓘ
LetterOne ⓘ |
| mergerCompletionDate | 2019-05 ⓘ |
| operatesInRegion |
Europe
ⓘ
Latin America ⓘ Middle East ⓘ North Africa ⓘ Russia ⓘ |
| parentCompany |
BASF
ⓘ
LetterOne ⓘ |
| predecessor |
DEA Deutsche Erdoel AG
ⓘ
linked to:
Wintershall Dea
Wintershall ⓘ
linked to:
Wintershall Dea
|
| website | https://www.wintershalldea.com ⓘ |
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: Wintershall Dea Description of subject: Wintershall Dea is a major European independent oil and gas exploration and production company formed through the merger of Wintershall and DEA.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Wintershall Dea
linked to: Wintershall Dea
linked to: Wintershall Dea
linked to: Wintershall Dea
linked to: Wintershall Dea