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Storage is the shock absorber of the energy system. When a pipeline stops or a cargo is delayed, what stands between that and a shortage is whatever is already sitting in a cavern, a tank, or a terminal — and how full it is. This layer tracks roughly 125 of the facilities where that buffer actually lives: European gas caverns, the US Strategic Petroleum Reserve, the big LNG terminals, and the crude hubs like Cushing and Rotterdam that set prices.

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The one rule worth knowing

If an operator publishes a fill level, it is shown. If not, it says not disclosed. Nothing is estimated, interpolated, or inferred from a country average and presented as a facility figure. That is a deliberate trade. It means the map has visible holes — and it means every number on it is something somebody actually published. Where facility-level data is missing, the panel falls back to a country aggregate, clearly labelled as such.
Capacity figures are nameplate, not usable. Working capacity is typically 75-85% of nameplate for underground gas storage. A facility at “100% of nameplate” is not a thing that happens.

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Scope

Release 1 launches with ~125 curated critical storage facilities, not a global census. Curation bias: facilities that move markets, not every tank farm on earth.
  • Underground gas storage (UGS): top European sites (Rehden, Bergermeer, Haidach, Chiren, etc.), US salt caverns.
  • Strategic Petroleum Reserve caverns: US SPR (Bryan Mound, Big Hill, West Hackberry, Bayou Choctaw), plus major non-US stockholding facilities where published.
  • LNG import & export terminals: Sabine Pass, Corpus Christi, Ras Laffan, Yamal LNG, Asian regas hubs.
  • Crude oil tank farms: major trading hubs (Cushing OK, Rotterdam, Singapore, Fujairah) where operator data is public.

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Data sources

  • Global Energy Monitor — Storage Tracker (CC-BY 4.0) for facility identity, geometry, capacity.
  • GIE AGSI+ & ALSI for EU gas / LNG fill % at facility granularity (where published).
  • EIA Form EIA-191 for US UGS.
  • EIA SPR weekly stock report for US SPR-level inventory.
  • Operator dashboards where the facility publishes real-time or near-real-time fill %.

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Fill % — published, not synthesized

If an operator publishes fill %, we show it. If they don’t, we show not disclosed. We never synthesize, interpolate, or country-share a missing fill. When fill data is unavailable at the facility level, the panel falls back to country-level aggregate (e.g. “DE gas storage: 62% overall; Rehden facility fill not disclosed”) — both numbers labeled with their source.

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Freshness SLA

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Known limits

  • Not every facility publishes fill %. We indicate “not disclosed” explicitly.
  • Capacity figures are typically nameplate, not current maximum working capacity. Working capacity tends to be 75–85% of nameplate for gas UGS.
  • No forecast of storage-days-to-empty here; that computation lands on the country energy drill-down once the disruption log ships in Week 3.

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Attribution

Storage-facility registry data derived from Global Energy Monitor (CC-BY 4.0), GIE AGSI+/ALSI (registered API usage), and US EIA open data.

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Corrections

See /corrections for the planned revision-log shape and submission policy. If a facility you operate is misrepresented, we treat corrections directly from the operator as top-tier evidence — open a GitHub issue at the public repository. Automated override-trigger entries ship with the post-launch classifier; corrections are handled manually today.