Transocean
E305562
Transocean is a major offshore drilling contractor that owned and operated the Deepwater Horizon rig involved in the 2010 Gulf of Mexico oil spill.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Transocean canonical | 15 |
| Transocean Ltd. | 6 |
| Deepwater Horizon drilling rig | 5 |
| Transocean Inc. | 2 |
| Transocean Sedco Forex | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2861446 — 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: Transocean Context triple: [Deepwater Horizon oil spill, platformOwner, Transocean]
-
A.
Oceaneering International
Oceaneering International is a global engineering and technology company best known for its work in offshore energy services and advanced ride systems for major theme parks.
-
B.
Halliburton
Halliburton is a major American multinational corporation that provides products and services to the oil and gas industry worldwide.
-
C.
Evergreen Marine
Evergreen Marine is a major Taiwanese container shipping company known for operating one of the world’s largest fleets of container vessels.
-
D.
Inchcape
Inchcape is a small Scottish island in the North Sea, historically known for its dangerous reef and the Inchcape Rock lighthouse.
-
E.
Gulf Oil
Gulf Oil was a major American oil company and petroleum brand that played a prominent role in the global energy industry throughout much of the 20th century.
- 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: Transocean Target entity description: Transocean is a major offshore drilling contractor that owned and operated the Deepwater Horizon rig involved in the 2010 Gulf of Mexico oil spill.
-
A.
Oceaneering International
Oceaneering International is a global engineering and technology company best known for its work in offshore energy services and advanced ride systems for major theme parks.
-
B.
Halliburton
Halliburton is a major American multinational corporation that provides products and services to the oil and gas industry worldwide.
-
C.
Evergreen Marine
Evergreen Marine is a major Taiwanese container shipping company known for operating one of the world’s largest fleets of container vessels.
-
D.
Inchcape
Inchcape is a small Scottish island in the North Sea, historically known for its dangerous reef and the Inchcape Rock lighthouse.
-
E.
Gulf Oil
Gulf Oil was a major American oil company and petroleum brand that played a prominent role in the global energy industry throughout much of the 20th century.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
multinational corporation
ⓘ
offshore drilling contractor ⓘ public company ⓘ |
| countryOfIncorporation | Switzerland ⓘ |
| facedLegalActionFor |
Deepwater Horizon accident
ⓘ
linked to:
Deepwater Horizon oil spill
|
| formerlyKnownAs |
Transocean Inc.
ⓘ
linked to:
Transocean
Transocean Sedco Forex ⓘ
linked to:
Transocean
|
| foundedAs | The Offshore Company ⓘ |
| hasBusinessActivity |
contract drilling of offshore oil wells
ⓘ
operation of mobile offshore drilling units ⓘ |
| hasClient |
major integrated oil companies
ⓘ
national oil companies ⓘ |
| hasCompetitor |
Diamond Offshore Drilling
ⓘ
Noble Corporation ⓘ Seadrill ⓘ Valaris ⓘ |
| hasRiskExposure |
offshore environmental incidents
ⓘ
oil price volatility ⓘ |
| hasSubsidiary |
Transocean Ltd.
ⓘ
linked to:
Transocean
|
| headquartersLocation | Steinhausen, Switzerland ⓘ |
| industry |
offshore drilling
ⓘ
oil and gas services ⓘ |
| involvedIn |
2010 Gulf of Mexico oil spill
ⓘ
Deepwater Horizon oil spill ⓘ |
| legalForm | public limited company ⓘ |
| listedOn | New York Stock Exchange ⓘ |
| operated | Deepwater Horizon ⓘ |
| owned | Deepwater Horizon ⓘ |
| paidSettlementFor | 2010 Gulf of Mexico oil spill ⓘ |
| providedServiceFor | BP ⓘ |
| regionServed |
Asia-Pacific
ⓘ
Brazil ⓘ Gulf of Mexico ⓘ North Sea ⓘ West Africa ⓘ |
| sector | energy services ⓘ |
| specializesIn |
deepwater drilling
ⓘ
ultra-deepwater drilling ⓘ |
| stockTicker | RIG ⓘ |
| subjectOf |
environmental criticism
ⓘ
regulatory investigations after Deepwater Horizon spill ⓘ |
| usesAssetType |
drillships
ⓘ
jackup rigs ⓘ semisubmersible rigs ⓘ |
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: Transocean Description of subject: Transocean is a major offshore drilling contractor that owned and operated the Deepwater Horizon rig involved in the 2010 Gulf of Mexico oil spill.
Referenced by (29)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Transocean
linked to: Transocean
linked to: Transocean
subject linked to:
Mike Williams
linked to: Transocean
linked to: Transocean
linked to: Transocean
linked to: Transocean
subject linked to:
Andrea Fleytas
linked to: Transocean
subject linked to:
Andrea Fleytas
linked to: Transocean
subject linked to:
Caleb Holloway
linked to: Transocean
linked to: Transocean