Petróleos Mexicanos
E528134
Petróleos Mexicanos (Pemex) is Mexico’s state-owned petroleum company and one of the largest oil producers in Latin America.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Petróleos Mexicanos canonical | 4 |
| Petróleos Mexicanos health services | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5541242 — 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: Petróleos Mexicanos Context triple: [Parque Bicentenario, formerSiteOwner, Petróleos Mexicanos]
-
A.
Petróleos de Venezuela S.A.
Petróleos de Venezuela S.A. is Venezuela’s state-owned oil and natural gas company and one of the world’s largest petroleum producers and exporters.
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B.
Chevron Corporation
Chevron Corporation is one of the world’s largest integrated oil and gas companies, involved in exploration, production, refining, and marketing of petroleum and related energy products globally.
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C.
Cepsa
Cepsa is a Spanish integrated energy and petrochemical company involved in oil and gas exploration, refining, and the production of chemical products.
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D.
Instituto del Petróleo
Instituto del Petróleo is a Mexico City Metro station named after the nearby national petroleum research and administrative complex, serving as a transfer point between multiple metro lines in the city’s north.
-
E.
Sinopec
Sinopec is one of China’s largest state-owned oil and petrochemical companies, engaged in exploration, refining, and marketing of petroleum and chemical products 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: Petróleos Mexicanos Target entity description: Petróleos Mexicanos (Pemex) is Mexico’s state-owned petroleum company and one of the largest oil producers in Latin America.
-
A.
Petróleos de Venezuela S.A.
Petróleos de Venezuela S.A. is Venezuela’s state-owned oil and natural gas company and one of the world’s largest petroleum producers and exporters.
-
B.
Chevron Corporation
Chevron Corporation is one of the world’s largest integrated oil and gas companies, involved in exploration, production, refining, and marketing of petroleum and related energy products globally.
-
C.
Cepsa
Cepsa is a Spanish integrated energy and petrochemical company involved in oil and gas exploration, refining, and the production of chemical products.
-
D.
Instituto del Petróleo
Instituto del Petróleo is a Mexico City Metro station named after the nearby national petroleum research and administrative complex, serving as a transfer point between multiple metro lines in the city’s north.
-
E.
Sinopec
Sinopec is one of China’s largest state-owned oil and petrochemical companies, engaged in exploration, refining, and marketing of petroleum and chemical products worldwide.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
integrated oil and gas company
ⓘ
state-owned enterprise ⓘ state-owned oil company ⓘ |
| activity |
exploration of hydrocarbons
ⓘ
marketing of petroleum products ⓘ petrochemical production ⓘ production of crude oil ⓘ refining of petroleum ⓘ storage of oil and gas ⓘ transportation of oil and gas ⓘ |
| businessModel | vertically integrated ⓘ |
| continentServed | Latin America NERFINISHED ⓘ |
| country | Mexico ⓘ |
| founded | 1938 ⓘ |
| foundedAfterEvent | Mexican oil expropriation NERFINISHED ⓘ |
| foundedBy | Government of Mexico NERFINISHED ⓘ |
| hasLogo | Pemex logo ⓘ |
| hasSubsidiary |
Pemex Exploración y Producción
NERFINISHED
ⓘ
Pemex Gas y Petroquímica Básica NERFINISHED ⓘ Pemex Petroquímica NERFINISHED ⓘ Pemex Refinación NERFINISHED ⓘ |
| hasWebsite | https://www.pemex.com ⓘ |
| headquartersLocation | Mexico City NERFINISHED ⓘ |
| industry |
natural gas
ⓘ
oil and gas ⓘ petroleum ⓘ |
| isOneOf |
largest companies in Mexico
ⓘ
largest oil producers in Latin America ⓘ |
| keyPerson | CEO of Petróleos Mexicanos ⓘ |
| languageOfName | Spanish ⓘ |
| legalForm | state-owned company ⓘ |
| operatesIn |
Gulf of Mexico
NERFINISHED
ⓘ
onshore oil fields in Mexico ⓘ |
| owner | Government of Mexico NERFINISHED ⓘ |
| product |
crude oil
ⓘ
diesel fuel ⓘ gasoline ⓘ jet fuel ⓘ liquefied petroleum gas ⓘ natural gas ⓘ petrochemicals ⓘ |
| regionServed | Mexico NERFINISHED ⓘ |
| regulator | Secretaría de Energía de México NERFINISHED ⓘ |
| sector | energy ⓘ |
| sharesOwnedBy | Government of Mexico NERFINISHED ⓘ |
| shortName | Pemex NERFINISHED ⓘ |
| strategicImportance | key contributor to Mexican public finances ⓘ |
| taxpayerTo | Government of Mexico NERFINISHED ⓘ |
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: Petróleos Mexicanos Description of subject: Petróleos Mexicanos (Pemex) is Mexico’s state-owned petroleum company and one of the largest oil producers in Latin America.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Petróleos Mexicanos health services