Vaca Muerta shale formation
E481077
Vaca Muerta shale formation is a vast, hydrocarbon-rich shale play in Argentina that is one of the world’s largest unconventional oil and gas reserves.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Vaca Muerta shale development | 1 |
| Vaca Muerta shale formation canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4935738 — 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: Vaca Muerta shale formation Context triple: [Neuquén Province, contains, Vaca Muerta shale formation]
-
A.
Chilean nitrate fields
The Chilean nitrate fields are vast desert mining areas in northern Chile that were historically central to the global production of natural sodium nitrate (saltpeter), driving major economic and social development in the region.
-
B.
Espanola Basin
The Española Basin is a major sedimentary and structural basin in northern New Mexico that forms part of the Rio Grande Rift and hosts significant groundwater and geologic resources.
-
C.
Alpine oil field
The Alpine oil field is a major North Slope oil development in Alaska, known for its remote Arctic location and role in U.S. petroleum production.
-
D.
Permian Basin
The Permian Basin is a vast sedimentary basin in western Texas and southeastern New Mexico that is one of the most productive oil and natural gas regions in the United States.
-
E.
Evolution Basin
Evolution Basin is a high-elevation glacial valley in California’s Sierra Nevada, renowned for its chain of alpine lakes, dramatic granite peaks, and location along the John Muir Trail.
- 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: Vaca Muerta shale formation Target entity description: Vaca Muerta shale formation is a vast, hydrocarbon-rich shale play in Argentina that is one of the world’s largest unconventional oil and gas reserves.
-
A.
Chilean nitrate fields
The Chilean nitrate fields are vast desert mining areas in northern Chile that were historically central to the global production of natural sodium nitrate (saltpeter), driving major economic and social development in the region.
-
B.
Espanola Basin
The Española Basin is a major sedimentary and structural basin in northern New Mexico that forms part of the Rio Grande Rift and hosts significant groundwater and geologic resources.
-
C.
Alpine oil field
The Alpine oil field is a major North Slope oil development in Alaska, known for its remote Arctic location and role in U.S. petroleum production.
-
D.
Permian Basin
The Permian Basin is a vast sedimentary basin in western Texas and southeastern New Mexico that is one of the most productive oil and natural gas regions in the United States.
-
E.
Evolution Basin
Evolution Basin is a high-elevation glacial valley in California’s Sierra Nevada, renowned for its chain of alpine lakes, dramatic granite peaks, and location along the John Muir Trail.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
shale formation
ⓘ
shale play ⓘ unconventional hydrocarbon reservoir ⓘ |
| basinType | foreland basin ⓘ |
| contains | organic-rich marine shales ⓘ |
| continent | South America ⓘ |
| country | Argentina ⓘ |
| depositionalEnvironment | marine ⓘ |
| developmentMethod |
horizontal drilling
ⓘ
hydraulic fracturing ⓘ |
| discoveryStatus | known since early 20th century as source rock ⓘ |
| economicImportance |
key driver of Argentina’s energy sector
ⓘ
major target for foreign energy investment ⓘ |
| estimatedRecoverableResources | tens of billions of barrels of oil equivalent ⓘ |
| geologicalAge |
Early Cretaceous
NERFINISHED
ⓘ
Late Jurassic ⓘ |
| globalSignificance | one of the world’s largest unconventional oil and gas reserves ⓘ |
| hydrocarbonType |
natural gas
ⓘ
oil ⓘ |
| languageOfName | Spanish ⓘ |
| lithology | shale ⓘ |
| locatedIn |
La Pampa Province
NERFINISHED
ⓘ
Mendoza Province NERFINISHED ⓘ Neuquén Basin NERFINISHED ⓘ Neuquén Province NERFINISHED ⓘ Río Negro Province NERFINISHED ⓘ |
| mainOperator | YPF NERFINISHED ⓘ |
| namedAfter | Vaca Muerta area in Neuquén NERFINISHED ⓘ |
| nameMeaning | Dead Cow ⓘ |
| otherOperators |
Chevron
NERFINISHED
ⓘ
ExxonMobil NERFINISHED ⓘ Pan American Energy NERFINISHED ⓘ Shell NERFINISHED ⓘ TotalEnergies NERFINISHED ⓘ |
| overlies | Tordillo Formation NERFINISHED ⓘ |
| partOf | Mendoza Group NERFINISHED ⓘ |
| period |
Cretaceous
ⓘ
Jurassic ⓘ |
| resourceType |
shale gas
ⓘ
tight oil ⓘ unconventional oil ⓘ |
| sourceRockFor | conventional oil fields in Neuquén Basin ⓘ |
| stratigraphicUnitOf | Neuquén Basin NERFINISHED ⓘ |
| thickness | up to several hundred meters ⓘ |
| unconventionalDevelopmentStart | early 2010s ⓘ |
| underlies |
Agrio Formation
NERFINISHED
ⓘ
Mulichinco Formation 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: Vaca Muerta shale formation Description of subject: Vaca Muerta shale formation is a vast, hydrocarbon-rich shale play in Argentina that is one of the world’s largest unconventional oil and gas reserves.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Vaca Muerta shale development