Europe's Energy Winter 2026/27 — Gas Storage, LNG, Diesel and Inflation

How full is Europe's gas storage?

Gas Infrastructure Europe (GIE) says EU storage was 72% full on 1 October, about 74 billion cubic metres (bcm), "about 11% below the same date last year" ^[1]. The EU energy regulator ACER reported 75% on 21 October ^[2]. Storage ended last winter at 28% of capacity, against 34% a year earlier, so the refill started from a lower base ^[2].

The refill was costly and hard to justify commercially. ACER estimates an upper bound of €27bn for the 2026 refill and says the conflict added €18–33bn to Europe's gas import bill for the same volume ^[2]. The Institute for Energy Economics and Financial Analysis (IEEFA) notes that summer contracts were at times priced above winter ones, so "buying gas to store has become a financial risk rather than a profitable strategy" ^[3].

In March the European Commission asked member states to start injecting early and pointed to flexibility in the storage rules; Euronews reported that the 90% target for 1 November was effectively eased ^[4]. Several governments acted on their own. Germany told SEFE to store 8 TWh by 15 December, the Netherlands approved up to €993 million for reserves held by EBN, and Spain raised the LNG held at its terminals by more than 25% ^[3].

Why are gas prices so high?

The front-month TTF contract was about €103.8 per megawatt hour (MWh) on 30 October, up about 40% in a month and the highest since December 2022, according to Trading Economics ^[5]. Before the war it was about €30–31 ^[6].

The main reason is lost LNG. About 20% of global LNG, more than 110 bcm in 2025, passed through the Strait of Hormuz, and just over 10% of that went to Europe ^[7]. Qatar's exports fell 96% over the first six months of the war, to 18 cargoes from 509 a year earlier, The Insider reported, citing Reuters ^[8]. ACER says no significant Qatari volumes reached the EU this summer ^[2]. Before the war Qatar supplied 8% of EU LNG imports and 4% of total gas imports, but about a third of Italy's LNG, according to Bruegel ^[9].

Europe has leaned on the United States. US LNG now covers about 30% of total EU gas supply, ACER says, while total EU LNG imports fell 14% over the summer ^[2]. Europe also faces more competition for those cargoes: its share of US LNG exports fell from 67% in March–July 2025 to 51% in the same months of 2026 as Asian buyers bid for supply ^[8].

What could the winter look like?

GIE has modelled the winter from the 1 October starting point ^[1]:

• Normal winter, tight LNG: storage ends March 2027 at about 13%.
• Cold winter: storage ends at about 11%, and about 7% of demand (22 bcm) with optimal LNG supply, or about 12% (40 bcm) with tight supply, would have to be met by demand response.
• Next year's refill: storage could reach 90% by the end of September 2027 with optimal LNG supply, but only 65% if LNG stays tight.

The European Network of Transmission System Operators for Gas (ENTSOG) says storage could fall "well below 30%" by the end of winter if LNG availability stays limited, and that landlocked Central, Eastern and South-Eastern Europe face the hardest access ^[10]. IEEFA estimates that storage could supply 7.3 bcm less than last winter and that, with the ban on Russian LNG, the EU may need to use 14 bcm less gas, a cut of about 7% ^[3].

The Commission's view is more confident. After the Gas Coordination Group met on 8 October it said the system is "sufficiently flexible to meet demand this winter" and that the situation "differs significantly from that of winter 2021-2022" ^[11]. GIE's Lucie Boost added a caution: drawing storage down too far this winter also makes it harder to prepare for the next one ^[1].

Is diesel the bigger risk for Europe?

For oil, the pressure point is middle distillates. About 17% of EU diesel supply is imported, mainly from Saudi Arabia, the United States and India, and about 38% of jet fuel, mainly from Kuwait, India and the UAE, according to Bruegel ^[12]. Middle East product shipments fell to 1.9 million barrels a day (mb/d) in September from 4.7 mb/d before the war, and diesel and gasoil exports from the Middle East and Russia were about 1.3 mb/d lower year on year ^[13].

The IEA warned in October that lost diesel stocks are unlikely to be rebuilt before the second half of 2027 and that delivered diesel prices in Europe, Africa and Latin America "could rise again" ^[14]. Refiners are earning record margins: TotalEnergies' European refining margin indicator was $33.2 a barrel in the third quarter, nearly four times the $8.4 a year earlier ^[15].

Governments have responded with tax cuts. Germany cut fuel taxes from 1 October to the end of the year at a cost of €2.5bn; Spain's fuel-tax break was 5 cents a litre in September, with an automatic rise to 20 cents if annual fuel inflation exceeds 15%; Italy let its diesel excise cut expire on 5 October; France announced a €450 million package ^[16]. Transport & Environment estimates that EU drivers pay an extra €203 million a day for diesel ^[16]. Bruegel has warned that broad tax cuts "risk blurring the price signal" in a period of scarcity ^[17].

What does it mean for inflation and interest rates?

Euro area inflation rose to 3.8% in September from 3.2% in August, with energy prices up 18.9% on the year and inflation excluding energy and food at 2.3% ^[18]. The European Central Bank (ECB) raised rates in September and held them on 29 October, with the deposit rate at 2.50% ^[19]. President Christine Lagarde said energy prices pose "upside risks to the inflation outlook and downside risks to the growth outlook" and that staff will most likely produce scenarios again in December ^[18].

The ECB's own scenarios, described in the account of its September meeting, tie the outcome to how much oil and gas goes missing: in the adverse and severe cases inflation stays above target over the whole horizon and growth is below baseline ^[20]. Some members thought the shock "could fade as quickly as it arose" because prices track the US–Iran talks ^[20].

What to watch this winter

• Qatari LNG. QatarEnergy has extended its force majeure to the end of December ^[22], and deliveries to Italy's Edison are suspended until early December ^[21].
• Russian LNG. The EU's phase-out of Russian LNG takes effect from January 2027, which ACER expects to raise competition for US cargoes ^[2].
• Weather. Emptier storage sites release gas more slowly, so a cold spell late in the winter is the main risk, IEEFA says ^[3].
• Diplomacy. Any US–Iran agreement that reopens Hormuz would be the "single most important variable" for supply and prices, according to the IEA ^[7].
• The ECB in December. New staff scenarios will show how far the energy shock has moved the inflation path ^[18].

Alupetra follows European gas, diesel and crude markets daily; our live TTF and diesel price pages are updated every morning.