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Norway's September Gas Output Falls 12.6% Before Winter

Norway's September Gas Output Falls 12.6% Before Winter

Preliminary data put Norwegian gas output at 298.4 mcm/d in September, below forecast; the maintenance-versus-outage split is not established.

Norway's September gas output fell 12.6% to 298.4 million standard cubic metres a day, 6.7% below the Norwegian Offshore Directorate's forecast, but the available data cannot say how much came from Gassco maintenance versus other causes. Winter risk therefore remains unquantified until October figures show whether output recovers.

The Gulf Barrel Desk · 3 min read

Norway's gas output dropped sharply in September, but the data published so far cannot say whether the cause was planned maintenance, unplanned outages or both. According to preliminary figures from the Norwegian Offshore Directorate, released on 20 October 2026 and relayed by OilPrice.com, gas output averaged about 298.4 million standard cubic metres a day, down 12.6% from August. Norway is a major pipeline supplier to Europe, so the heating season gives the number extra weight.

What the September numbers show

Gas output fell from about 341.6 million Sm3 a day in August to about 298.4 million in September, a drop of roughly 43 million, per the Directorate figures as relayed by OilPrice on 20 October 2026. That was 6.7% below the Directorate's forecast of 319.9 million, though about 5.1% above September 2025. Total petroleum output averaged about 3.77 million barrels of oil equivalent a day, down 10.4% on the month and 4% below forecast.

The cause of the drop is not established

OilPrice reports that Gassco warned in late August that planned maintenance could cut Norwegian export capacity by about 20% in parts of the period through September, citing Reuters-reported Gassco transparency data, and that Gassco said on 1 October its major scheduled work was complete. The same report notes that the Directorate's figures do not establish how much of the decline came from maintenance versus other factors. Maintenance is a plausible contributor, but the split is unconfirmed.

One reported outage needs verification

OilPrice also reports an extended outage at the Shell-operated Ormen Lange field expected to reduce deliveries by about 7.9 million Sm3 a day until 1 February 2027, but it names no source for that figure. We treat it as an unverified estimate. If accurate, it would equal roughly a fifth of September's 43 million Sm3 monthly swing and, unlike maintenance, would persist into the heating season. Confirmation from the field operator or Gassco is needed.

What to watch into winter

The Directorate's October release is the first clean test. Output returning toward the roughly 320 million Sm3 a day forecast level once maintenance has ended would point to a seasonal dip; output staying well below it would raise the likelihood of unplanned or longer-running constraints. For context, the Directorate's August release put gas sales at 10.6 billion Sm3. This is analysis, not trading advice.

How much did Norway's gas production fall in September 2026?
Preliminary figures attributed to the Norwegian Offshore Directorate, as relayed by OilPrice.com on 20 October 2026, show about 298.4 million Sm3 a day, down 12.6% from about 341.6 million in August and 6.7% below the Directorate's forecast.
Was the drop caused by maintenance?
Partly, probably, but this is unconfirmed. OilPrice reports that Gassco had warned of planned maintenance trimming export capacity by about 20% in parts of the period and that Gassco said on 1 October its major scheduled work was complete. The Directorate's figures do not split maintenance from other causes.
Does this change Europe's winter supply picture?
It is too early to say. If October output returns toward the roughly 320 million Sm3 a day forecast level, the September dip was likely seasonal. A reported extended outage at the Shell-operated Ormen Lange field, with no named source for its size or duration, is the item to verify. This is analysis, not trading advice.
  1. Norway's Gas Production Plunges 12.6% as Europe Heads into Winter — OilPrice.com
  2. Production figures September 2026 — Norwegian Offshore Directorate (Sodir)
  3. Norwegian Offshore Directorate announces production figures for August 2026 — energy-pedia (reproducing the Norwegian Offshore Directorate announcement)