Diamond Offshore Drilling
E1008333
Diamond Offshore Drilling is an American offshore drilling contractor that provides contract drilling services to the energy industry worldwide using a fleet of offshore drilling rigs.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Diamond M Drilling Company | 2 |
| Diamond Offshore Drilling canonical | 2 |
| Diamond Offshore Corporation | 1 |
| Diamond Offshore Drilling, Inc. | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12783398 — 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: Diamond Offshore Drilling Context triple: [Transocean, hasCompetitor, Diamond Offshore Drilling]
-
A.
Seadrill
Seadrill is an offshore drilling contractor that owns and operates a fleet of drilling rigs used for oil and gas exploration and production worldwide.
-
B.
Transocean
Transocean is a major offshore drilling contractor that owned and operated the Deepwater Horizon rig involved in the 2010 Gulf of Mexico oil spill.
-
C.
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.
-
D.
Wood Group
Wood Group is a global engineering and consulting company serving the energy and industrial sectors with project, operations, and environmental services.
-
E.
ADNOC Drilling
ADNOC Drilling is a major UAE-based drilling and well services company that supports oil and gas exploration and production, primarily for Abu Dhabi’s energy sector.
- 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: Diamond Offshore Drilling Target entity description: Diamond Offshore Drilling is an American offshore drilling contractor that provides contract drilling services to the energy industry worldwide using a fleet of offshore drilling rigs.
-
A.
Seadrill
Seadrill is an offshore drilling contractor that owns and operates a fleet of drilling rigs used for oil and gas exploration and production worldwide.
-
B.
Transocean
Transocean is a major offshore drilling contractor that owned and operated the Deepwater Horizon rig involved in the 2010 Gulf of Mexico oil spill.
-
C.
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.
-
D.
Wood Group
Wood Group is a global engineering and consulting company serving the energy and industrial sectors with project, operations, and environmental services.
-
E.
ADNOC Drilling
ADNOC Drilling is a major UAE-based drilling and well services company that supports oil and gas exploration and production, primarily for Abu Dhabi’s energy sector.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
offshore drilling contractor
ⓘ
public company ⓘ |
| competesWith |
Noble Corporation
ⓘ
Seadrill ⓘ Transocean ⓘ Valaris ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| fleetType |
drillships
ⓘ
jack-up rigs ⓘ semisubmersible rigs ⓘ |
| foundedAs |
Diamond M Drilling Company
ⓘ
linked to:
Diamond Offshore Drilling
|
| hasBusinessModel | contract-based drilling services ⓘ |
| hasClientIndustry | energy industry ⓘ |
| hasCoreActivity |
development drilling
ⓘ
exploration drilling ⓘ workover operations ⓘ |
| hasFormerName |
Diamond M Drilling Company
ⓘ
linked to:
Diamond Offshore Drilling
Diamond Offshore Corporation ⓘ
linked to:
Diamond Offshore Drilling
|
| hasOperationalRegion |
Brazilian offshore
ⓘ
Gulf of Mexico ⓘ North Sea ⓘ West Africa offshore ⓘ
linked to:
Gulf of Guinea
|
| hasRevenueSource |
dayrate contracts
ⓘ
long-term drilling contracts ⓘ short-term drilling contracts ⓘ |
| hasRiskProfile | exposure to oil price volatility ⓘ |
| headquartersLocation |
Houston, Texas
ⓘ
linked to:
Houston
Texas ⓘ United States ⓘ
linked to:
United States of America
|
| industry |
offshore drilling
ⓘ
oil and gas services ⓘ |
| legalForm | corporation ⓘ |
| marketType | international ⓘ |
| operatesInEnvironment | offshore ⓘ |
| operatesInSector |
energy
ⓘ
oil and gas ⓘ |
| providesServiceTo |
natural gas companies
ⓘ
oil companies ⓘ |
| regulatoryEnvironment |
U.S. securities regulations
ⓘ
offshore safety regulations ⓘ |
| scopeOfOperations | worldwide ⓘ |
| service |
contract drilling services
ⓘ
offshore drilling services ⓘ |
| stockExchangeListing | New York Stock Exchange ⓘ |
| subjectTo |
environmental regulations
ⓘ
maritime regulations ⓘ |
| tickerSymbol | DO ⓘ |
| usesAssetType | offshore drilling 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: Diamond Offshore Drilling Description of subject: Diamond Offshore Drilling is an American offshore drilling contractor that provides contract drilling services to the energy industry worldwide using a fleet of offshore drilling rigs.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Diamond Offshore Drilling
linked to: Diamond Offshore Drilling
linked to: Diamond Offshore Drilling
linked to: Diamond Offshore Drilling