EU Gas Storage Could Fall to 15% by Winter's End, Analysts Warn
A record seasonal storage deficit, a Norwegian field outage running through February, and LNG cargoes diverted to Asia put the EU's revised 80% fill target at serious risk.
ICE Endex TTF front-month fell 3.31% to €79.51/MWh on Friday (2026-09-11), even as analysts warned Montel that European gas storage could close the 2026-27 winter heating season at around 15% of capacity — an outcome that would leave the bloc with near-zero carryover before the next injection season begins.2,4
EU gas inventories stood at just under 58% of capacity by early August (2026-08-06), the lowest for the time of year in records going back to 2011 and 12 percentage points below the same point in 2025, Gas Infrastructure Europe data show.3
Europe had spent nearly two years rebuilding gas security following the loss of Russian pipeline supplies, only to see stocks fall back to record seasonal lows as disruptions around the Strait of Hormuz created fresh supply volatility and revived memories of the 2022 energy crisis, Reuters reported on August 6 (2026-08-06). "A very risky situation," said David Lewis, senior research analyst at Wood Mackenzie.3
The European Commission moved to manage the political pressure. Having introduced a 90% fill target by November, Brussels relaxed the goal to 80% by December, framing the adjustment as a measure to avoid pre-winter buying that would push prices higher. Commission officials said on Wednesday (2026-07-01) there was "no immediate concern" about securing sufficient gas for winter and that the 80% threshold would be sufficient.2,3
Analysts told Montel on Thursday (2026-07-02) that those assurances looked premature. Persistently low LNG imports and multiple supply and demand risks may strain winter supply security despite the official stance, they said. EU officials were "too confident," Montel reported.2
The supply picture worsened further in August. An extension of maintenance at a Norwegian gas field until early February could cause European inventories to fall at a faster rate than anticipated over the winter period, particularly if cold weather coincides with reduced pipeline flows, analysts told Montel on Tuesday (2026-08-11).4
Norway is a key swing supplier for northwest Europe. Extended field outages during the withdrawal season push drawdowns faster than seasonal models anticipate. A February end-date means this maintenance runs through the heart of the peak demand period, leaving little margin if temperatures drop below seasonal norms for even two to three weeks.4
Asian LNG demand adds a further constraint. JKM, the Asian spot LNG benchmark, was at $24.81/MMBtu on Friday (2026-09-11), well above European import-equivalent levels, pulling Atlantic Basin cargoes toward East Asian terminals rather than northwest European regasification facilities. Europe's storage refilling effort is further complicated by ongoing disruptions in the Strait of Hormuz, which have kept global LNG supply volatile, Euronews reported on Thursday (2026-08-20).5
Germany illustrates the cost pressure already building. The country is likely to reach adequate winter storage levels in time, but only at heightened cost if refilling starts late in the year, an analyst told Montel's German Energy Day in Dusseldorf on Thursday (2026-05-21). The spread between prompt and forward gas prices was already wide enough to make late-season injection economically painful.1
Friday's (2026-09-11) TTF decline may partly reflect lighter near-term demand or improving short-term injection rates. But analysts tracking the Norwegian outage timeline and Asian LNG competition put the Commission's 80% December target in serious doubt, and the 15% close-of-winter scenario is not yet off the table. How quickly Norwegian field restart schedules firm up, and whether Atlantic LNG cargoes return to European terminals as Asian demand shifts, are the signals traders are watching in the weeks ahead.4,2