Nexeraise

Operational and telemetry record set from four of Japan's ten national petroleum stockpile bases (Tomakomai-Higashi, Akita, Fukui, Shibushi) operated under contract to the state agency JOGMEC since 2018: tank-by-tank inventory and level histories across above-ground, buried, offshore and rock-cavern tank types; receipt and discharge campaign logs; tanker berthing and single-point-mooring / submarine-pipeline loading records; inspection, maintenance and seismic-resilience engineering data; plus published contracted labour unit-rate schedules.

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Coverage

Universe, instruments and categories.

Industry: Oil & Gas Storage & TransportationIntegrated Oil
Instruments: commoditiesequities

Dataset card

Type: not stated
Format: Mixed: tabular time-series (tank level/inventory, throughput), tabular operational logs and rate schedules (published as PDF), plus text engineering/inspection reports
Volume: Order 100+ individually instrumented tanks across 4 bases (57 at Tomakomai alone, 43 above-ground at Shibushi) x sub-daily level readings = several hundred million telemetry points over the 2018-to-date tenure, plus per-campaign receipt/discharge and berthing logs in the low tens of thousands. Capacity anchor: 6.4 million kilolitres at Tomakomai-Higashi alone, Japan's largest base, over a 2.74 million m² site.
Users: N/A — contracted infrastructure operator, not a user-facing product; no registration mechanic exists. Scale anchor instead: 559 employees and 39.8bn yen of throughput (FY2025) per the corporate information page.
History: 8 years
Update frequency: not stated
Growth: Active — contract expanded in FY2023 from a two-party arrangement into a six-company consortium (Nexeraize, JERA, Tomato Petrochem Stockpile, Akita Petro Stockpile, Fukui Petro Stockpile, Shibushi Petro Stockpile); headcount grew from 480 (Mar 2022) to 559 (Mar 2026) with the company refreshing its officer roster in June 2026.
Launched: 2018 for the stockpile data asset — the year JOGMEC awarded operations of the four bases to the firm jointly with JERA (then TEPCO Fuel & Power). The company itself is far older (established March 1955; renamed Nexeraize in 2021).
Delivery: not stated
Entity mapping: not stated
Sample: not stated
Point-in-time: not stated
Licence: not stated

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