A project’s climate impact is not determined solely by what happens on its platform. On 13 November 2026, the Norwegian Supreme Court declared invalid the decisions approving the development and operation of Breidablikk, Tyrving and the Yggdrasil area in the North Sea. At the heart of the dispute is how to assess emissions produced when the oil and gas are subsequently burned.
This victory for environmental organisations does not mean that all the installations must stop operating immediately. To understand its significance, it is necessary to distinguish between environmental assessment, the validity of administrative decisions and their effects on operators. It is precisely in this gap that the next stage of the case will be played out.
What the judges say must be counted
In its official summary of the judgment, the Court distinguishes production emissions, associated with the development and operation of the installations, from combustion emissions, generated after the hydrocarbons are sold. The judges are unanimous on one point: the latter must be assessed before the project is approved, including an evaluation of their effect on global warming.
The majority, six judges to five, also requires the project to be considered in the context of all existing and already authorised oil projects on the Norwegian continental shelf. The inadequacy of this cumulative assessment explains why the decisions were invalidated. The ministry must therefore reconsider the case through a proper procedure.
A battle that began in 2023
The action was brought by Greenpeace and Natur og Ungdom in 2023. As AFP reported in an article published by RTL, the organisations won at first instance in January 2024, and then on appeal in November 2025. The Ministry of Energy continued to challenge the case.
After the ruling on 13 November, Greenpeace hailed a major victory. For its part, the ministry told AFP that it would comply with the requirements of the judgment in a new assessment. These two reactions point to the next stage: the debate is shifting to the content of the administrative review, the outcome of which is not yet known.
The international significance of this case is of interest to organisations challenging other fossil-fuel projects. It does not, however, allow the outcome of proceedings in another country to be presumed: each case rests on its own decisions, applicable legislation and specific claims.
Why invalidation does not automatically close the fields
In its analysis of the judgment, the Norwegian law firm Schjødt points out that the companies holding the rights were not parties to these proceedings. The declaration of invalidity, made in the dispute between the state and the organisations, therefore does not automatically cancel their approvals.
The review could result in the approvals being confirmed or amended. The firm also notes that an approval after a project has begun remains possible under certain conditions: it must remain exceptional, must not allow the required assessment to be circumvented, and must take account of environmental effects that have already occurred.
Another important clarification in this analysis is that the judges did not adopt all the requirements sought by the associations. They do not require an examination of the concrete consequences of the projected temperature rise, or a comparison with the remaining global carbon budgets. The decision therefore strengthens a specific assessment requirement; it does not establish a general ban on producing oil.
‘Scope 3’, without cutting corners
The case sheds light on a question familiar to readers of ESG reports: where does a company’s climate footprint end? The GHG Protocol, in its guide to the use of sold products, classifies emissions resulting from the use of fuels under Scope 3, Category 11, among other things. Petroleum products and natural gas are explicitly included.
Scope 3 is not limited to this category: it covers several activities across the value chain. For a fuel seller, however, emissions from end users reveal part of the footprint that emissions from the installations alone do not describe.
The guide also calls for calculation methods and assumptions to be made explicit. The quantity of products sold, the period of use and an emissions factor determine what the figure represents. So-called avoided emissions must be presented separately from Scope 1, 2 and 3 inventories.
Company accounting and the impact assessment required before an approval serve different purposes. Bringing them together nevertheless helps readers assess a climate claim: before comparing two results, it is necessary to know which activities each one includes.
The useful question when reading an ESG announcement
Our reading of this case is simple: an indicator can be precise while covering only part of the issue. Saying that an installation reduces its own emissions does not, on its own, answer the question of emissions associated with the use of the product sold.
For readers, three points of reference are therefore useful: the scope of the calculation, the assumptions used and the decision actually taken. A better-documented procedure, a measured reduction in emissions and the halting of a project are three different outcomes. The Norwegian judgment requires closer scrutiny of the first; the decisions that follow will make it possible to assess its practical effects.
Archive photograph: the Supreme Court of Norway in Oslo, in 2006.
Credit: Mahlum — Wikimedia Commons — public domain.
