EU Gas Storage Level 2026 — Fill % Trajectory vs the 5-Year Norm
Where the European gas storage level stands now — as a percentage of working capacity — versus the 5-year seasonal norm and the relaxed 80% November 1 refill target. Reviewed 8 October: the trajectory is BORDERLINE, leaning short. GEF’s direct GIE read puts storage at 72.97% / 826.26 TWh (status 7 October, 06:00 CEST, gas day 6 October). The 10-day average pace of +0.21 points a day reaches about 78.4% by November 1; the 24-day pace of +0.20 reaches about 78.3%. The latest daily print was only +0.13, the third straight slowdown (injection fell from 3,297 to 1,796 GWh/d in two days), which would leave storage near 76%. The paces fall short of 80% but land inside the regulation’s flexibility band; the latest print sits at its edge.
The EU gas storage level stood at 72.97% of working capacity on GEF’s direct GIE AGSI+ read for gas day 6 October (826.26 TWh), up from 70.87% on 26 September and 68.04% on 12 September. That is an average of +0.21 percentage points a day over the ten days since 26 September, and +0.20 over the last 24; the latest daily print was +0.13, down from +0.27 the day before. Reaching 80% by 1 November needs about +0.27 points a day sustained for the remaining 26 days, so the verdict stays BORDERLINE, leaning short: both measured paces land more than a point short of 80% but inside the regulation’s flexibility band, and the latest daily print would take it close to the band’s lower edge. Storage remains well below the five-year norm for early October, and the aggregate hides a sharp split: on the same read Germany was at 59.30% and the Netherlands at 60.97%, while France (85.74%) and Italy (88.21%) were already above the target.
How to read this chart
The blue line is where storage actually went: it started the season near 83% on 1 November 2025, fell through the heating months to a trough near 36% in early March, and has refilled to 72.97% on 6 October (the solid dot, GEF’s latest direct GIE read; the line between 26 September and 6 October is drawn through GEF’s direct reads of 4, 5 and 6 October). The grey dotted line is the five-year seasonal norm, GEF’s own calculation from the AGSI+ series; Voltstack puts early October about 15 points above the current level. The two dashed lines project the refill to 1 November: amber at the 10-day average of +0.21 points a day (about 78.4%), grey at the 24-day average of +0.20 (about 78.3%). The green dashed horizontal line is the relaxed 80% target and the grey one above it the original 90%. Both projections finish just below 80%, which is why GEF rates the trajectory BORDERLINE rather than on pace — and the number to watch is the daily trend: if injections slowed to +0.10 a day, the projection would fall to about 75.6% and the verdict would move to OFF PACE.
Why storage entered 2026 so low
Two things stacked up. First, a cold tail to the 2025–26 winter pulled storage down faster than usual, so the refill season started from an unusually empty base. Second, the Strait of Hormuz crisis (the strait was closed on February 28, 2026, marked on the chart) tightened the global gas market just as Europe needed to buy: Middle East LNG flows to Europe fell to their lowest since 2019, and near-term gas contracts traded above next-winter prices — which removes the financial incentive to inject now and store for later. Europe has leaned heavily on US LNG to compensate, but the buying has been expensive and the pace has lagged what a normal refill would require.
What the 80% target means — and why it was relaxed
Under the EU Gas Storage Regulation, member states normally must fill storage to 90% by 1 November. For the 2026 winter the target was relaxed to 80% under the regulation’s flexibility provisions, with scope to deviate by up to a further 4 percentage points where market conditions are unfavourable. From 72.97% on 6 October, reaching 80% needs about +0.27 points a day for the remaining 26 days. The 10-day average of +0.21 falls about 1.6 points short and the 24-day average about 1.7 points short, both inside the flexibility band; the latest +0.13 would fall about 3.6 points short, near the band’s edge, and a slowdown to +0.10 would fall about 4.4 points short, outside it. The formal 90% target is out of reach. The national picture matters more than the aggregate: Germany’s regulator has called the legal 80% target unrealistic for Germany, where storage stands at 59.30%.
Why it matters
Storage is Europe’s buffer against a cold winter or a supply shock. A season that ends in the high 70s is survivable in a normal winter, but it leaves less headroom than any recent year, and the headroom is unevenly spread: the two largest northern stores, Germany and the Netherlands, are the furthest behind, while Poland, Italy and France are well stocked. Germany’s storage association has modelled a severe 2010-type winter emptying German stores in January or February. The supply side is also thinner than usual: Qatari LNG cannot leave the Gulf in volume while the Strait of Hormuz is closed (Day 219), Norwegian pipeline supply is constrained by maintenance, and the US storage surplus behind US LNG exports has narrowed to 2.9% above average. TTF settled at €71.86/MWh on 23 September, up about 122% this year. A disruption at one node propagates through the whole system; a borderline refill leaves less room to absorb it.
This is a standing, regularly-updated view that sits alongside the live EU gas storage tracker, which carries the per-country breakdown and the daily fill figure. The trajectory here is updated as new GIE AGSI+ readings arrive; the projection is a scenario at the current injection run-rate, not a forecast of a fixed outcome, and it will move as the pace of injections changes through the summer. For the methodology behind GEF's storage thresholds and seasonal bands, see the methodology page.