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OESAAnalysis

Country · coarse data

Japan

One field and 46 companies in Japan can be followed in OESA, with data from GEM and GLEIF – LEI register (Level 1 and 2). The figures are in the source's unit with period and source.

The data

What the source has for the country. What is not listed here is not in the data and is not filled in.

Level
Coarse data. International sources and curation with a source instead of the country's own authority. The figures are often annual, and the shares may be missing for some fields.
Ownership
per field, with shares
Production
per field and year, not all fields in the country
Facilities
not in the source
Pipelines
from the source
Period for the totals
2023
Retrieved
8 Oct 2026

Notes

What the sources and OESA say about the data for the country, including what is not used.

Fields

The fields in Japan with something to show. Fields with their own page are linked; the others can be followed on the globe.

FieldsGEM · 15 Jun 2026; GLEIF – LEI register (Level 1 and 2) · 14 Oct 2026

NameStatusOperatorProduction million Sm³ o.e., 2023, converted
Minami-Nagaoka Gas FieldProducingINPEX0.66 estimate

Estimate: Converted from the source's figures (2023). Oil equivalent by the Norwegian Offshore Directorate's rule: oil, condensate and NGL in Sm³ count equally, 1,000 Sm³ of gas = 1 Sm³ o.e. and 1 tonne of NGL = 1.9 Sm³ o.e. Estimate: the source gives m³ without reference conditions, and the figure is treated as Sm³. The error can be up to about 5%. GEM itself converted the figure and unit GEM states to an annual volume for 2023. OESA has not converted it.

Attribution: Global Energy Monitor, Global Gas Infrastructure Tracker, October 2025 release; Global Energy Monitor, Global Gas Infrastructure Tracker, March 2026 release; Global Energy Monitor, Global Oil and Gas Extraction Tracker, March 2026 release; Global Oil Infrastructure Tracker - Oil/NGL Pipelines - June 2026 release.; GLEIF LEI data (CC0 1.0)

Companies

The companies with a stake, operatorship or plants. Calculated production is OESA's estimate (share × production at the same level and for the same period).

CompaniesGEM · 15 Jun 2026; GLEIF – LEI register (Level 1 and 2) · 14 Oct 2026

NameRolesFields with a stakeOperator ofCalculated production million Sm³ o.e., estimateGroup
INPEX Corp1 field with a stakelicensee100.66 2023INPEX
Chita LNG Co Ltdplant owner00––
Chubu Electric Powerplant owner00––
Chubu Electric Power Co Incplant owner00––
Chugoku Electric Powerplant owner00––
City of Sendai Gas Bureauplant owner00––
ENEOS Corpplant owner00––
Hiroshima Gasplant owner00––
Hokkaido Gasplant owner00––
Hokkaido Gas Co Ltdplant owner00––
Hokuriku Electricplant owner00––
INPEXoperator01––
INPEX Corp20 pipelines, 1 terminalplant owner00–INPEX
Japex1 terminalplant owner00––
JAPEX1 pipelineplant owner00––
JAPEX6 pipelinesplant owner00––
JERA Co Incplant owner00––
JXTG Holdingsplant owner00––
K&O Energy Groupplant owner00––
Kansai Electric Powerplant owner00––
Kitakyushu LNGplant owner00––
Kyushu Electric Powerplant owner00––
Nanohana Pipeline Coplant owner00––
Nihonkai LNGplant owner00––
Niihama LNG Co Ltdplant owner00––
Nippon Gas Co Ltdplant owner00––
Nippon Steel Corpplant owner00––
Oita LNGplant owner00––
Okinawa Electric Power Co Incplant owner00––
Osaka Gasplant owner00––
Osaka Gas Co Ltdplant owner00–Osaka Gas
Saibu Gasplant owner00––
Saibu Gas Co Ltdplant owner00––
Sakaide LNGplant owner00––
Shizuoka Gasplant owner00––
Shizuoka Gas Co Ltdplant owner00––
TEPCOplant owner00––
Tobu Gasplant owner00––
Toho Gasplant owner00––
Toho Gas Co Ltdplant owner00––
Tohoku Electric Powerplant owner00––
Tohoku Electric Power Co Incplant owner00––
Tohoku Natural Gas Co Incplant owner00––
Tokyo Electric Power Coplant owner00––
Tokyo Gasplant owner00––
Tokyo Gas Co Ltdplant owner00––

The total covers the fields where the share and the production are at the same level and for the whole period. Where it says, for example, “6 of 7”, one field or licence is not included; the reason is given with the figure when you follow the company.

Attribution: Global Energy Monitor, Global Gas Infrastructure Tracker, October 2025 release; Global Energy Monitor, Global Gas Infrastructure Tracker, March 2026 release; Global Energy Monitor, Global Oil and Gas Extraction Tracker, March 2026 release; Global Oil Infrastructure Tracker - Oil/NGL Pipelines - June 2026 release.; GLEIF LEI data (CC0 1.0)

Groups in the country

The groups with companies in the country, linked by LEI, registration number or curated with a source.

The sources

The licence and attribution are verbatim as each source requires.

Sources for other countries