Sakhalin-II
E471452
Sakhalin-II is a major oil and gas development project off Russia’s Sakhalin Island, involving offshore platforms, pipelines, and one of the world’s northernmost liquefied natural gas (LNG) plants.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Sakhalin-2 | 2 |
| Lunskoye-A platform | 1 |
| Piltun-Astokhskoye-A platform | 1 |
| Piltun-Astokhskoye-B platform | 1 |
| Sakhalin-II canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4792053 — 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: Sakhalin-II Context triple: [Sakhalin Island, hasProject, Sakhalin-II]
-
A.
Sakhalin-I
Sakhalin-I is a major oil and gas development project off Russia’s Sakhalin Island, involving offshore platforms and international energy companies to exploit large hydrocarbon reserves.
-
B.
Sakhalin-1 project
The Sakhalin-1 project is a major offshore oil and gas development in Russia’s Far East, involving international partners and large-scale extraction from fields near Sakhalin Island.
-
C.
Vostochny Port
Vostochny Port is one of Russia’s largest deep-water seaports on the Pacific coast, serving as a major hub for coal exports and international maritime trade in the Russian Far East.
-
D.
Komsomolsk-on-Amur
Komsomolsk-on-Amur is a major industrial city in Russia’s Khabarovsk Krai, known for its shipbuilding and aircraft manufacturing industries in the Russian Far East.
-
E.
Simushir
Simushir is an uninhabited volcanic island in the central Kuril Islands chain of Russia, known for its rugged terrain and former Soviet military installations.
- 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: Sakhalin-II Target entity description: Sakhalin-II is a major oil and gas development project off Russia’s Sakhalin Island, involving offshore platforms, pipelines, and one of the world’s northernmost liquefied natural gas (LNG) plants.
-
A.
Sakhalin-I
Sakhalin-I is a major oil and gas development project off Russia’s Sakhalin Island, involving offshore platforms and international energy companies to exploit large hydrocarbon reserves.
-
B.
Sakhalin-1 project
The Sakhalin-1 project is a major offshore oil and gas development in Russia’s Far East, involving international partners and large-scale extraction from fields near Sakhalin Island.
-
C.
Vostochny Port
Vostochny Port is one of Russia’s largest deep-water seaports on the Pacific coast, serving as a major hub for coal exports and international maritime trade in the Russian Far East.
-
D.
Komsomolsk-on-Amur
Komsomolsk-on-Amur is a major industrial city in Russia’s Khabarovsk Krai, known for its shipbuilding and aircraft manufacturing industries in the Russian Far East.
-
E.
Simushir
Simushir is an uninhabited volcanic island in the central Kuril Islands chain of Russia, known for its rugged terrain and former Soviet military installations.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
offshore oil and gas field
ⓘ
oil and gas development project ⓘ |
| country | Russia ⓘ |
| developsResourceType |
natural gas
ⓘ
oil ⓘ |
| environmentalConcern |
impact on Western gray whales
ⓘ
risk of oil spills in the Sea of Okhotsk ⓘ |
| fieldName |
Lunskoye
ⓘ
linked to:
Piltun-Astokhskoye
Piltun-Astokhskoye ⓘ |
| firstOilProduction | late 1990s ⓘ |
| hasComponent |
liquefied natural gas plant
ⓘ
offshore platforms ⓘ oil export terminal ⓘ onshore pipelines ⓘ subsea pipelines ⓘ |
| knownFor |
complex offshore engineering in icy conditions
ⓘ
environmental controversy ⓘ |
| LNGPlantCharacteristic |
first LNG plant in Russia
ⓘ
one of the world’s northernmost LNG plants ⓘ |
| LNGPlantCountry | Russia ⓘ |
| LNGPlantExportsTo |
China
ⓘ
Japan ⓘ South Korea ⓘ other Asia-Pacific markets ⓘ |
| LNGPlantLocation | Prigorodnoye ⓘ |
| LNGPlantRegion | southern Sakhalin ⓘ |
| LNGPlantStartOfOperation | 2009 ⓘ |
| locatedIn |
Sakhalin Island
ⓘ
Sea of Okhotsk ⓘ |
| locatedOffshoreFrom | Sakhalin Island ⓘ |
| offshorePlatform |
Lunskoye-A platform
ⓘ
linked to:
Sakhalin-II
Piltun-Astokhskoye-A platform ⓘ
linked to:
Sakhalin-II
Piltun-Astokhskoye-B platform ⓘ
linked to:
Sakhalin-II
|
| operator | Sakhalin Energy Investment Company Ltd. ⓘ |
| originalShareholder |
Gazprom
ⓘ
Mitsubishi Corporation ⓘ Mitsui & Co. ⓘ
linked to:
Mitsui & Co., Ltd.
Royal Dutch Shell ⓘ |
| pipelineDestination | Prigorodnoye LNG plant ⓘ |
| pipelineType |
gas pipeline
ⓘ
oil pipeline ⓘ |
| regulatoryFramework | production sharing agreement ⓘ |
| seaCondition | seasonal sea ice ⓘ |
| seaEnvironment | subarctic ⓘ |
| startOfDevelopment | 1990s ⓘ |
| strategicImportance |
major source of LNG for Northeast Asia
ⓘ
significant project in Russia’s Far East energy exports ⓘ |
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: Sakhalin-II Description of subject: Sakhalin-II is a major oil and gas development project off Russia’s Sakhalin Island, involving offshore platforms, pipelines, and one of the world’s northernmost liquefied natural gas (LNG) plants.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sakhalin-II
linked to: Sakhalin-II
linked to: Sakhalin-II
linked to: Sakhalin-II
linked to: Sakhalin-II