The High Court has dismissed a judicial review brought by marine conservation charity Oceana UK, ruling that the previous government acted lawfully in awarding nearly 30 oil and gas exploration licences. The judgment, delivered on Friday by Mr Justice Mould, reinforces the regulatory distinction between exploration and production phases, providing a measure of legal certainty for operators in the UK Continental Shelf (UKCS) amid a tightening climate policy landscape.
The Ruling: Exploration vs. Production
The challenge centered on 28 exploration licences awarded in May 2024 by the then-Conservative administration as part of the North Sea Transition Authority’s (NSTA) 33rd licensing round. Oceana UK argued that the Secretary of State for Energy Security and Net Zero (DESNZ) and the NSTA failed to adequately assess the risks of accidental oil spills on Marine Protected Areas (MPAs) and ignored the cumulative climate impact of the fossil fuels that might eventually be burned (Scope 3 emissions).
In a significant judgment for the offshore energy sector, Mr Justice Mould rejected these arguments, accepting the government’s position that full environmental impact assessments are legally required only at the production stage, not during initial exploration.
“The evidence before the court establishes that licensed oil and gas activities in the United Kingdom continental shelf carry with them the risk of accidents, including oil and chemical spills,” Mr Justice Mould wrote in his judgment. However, he concluded it was “nevertheless reasonable” for regulators to proceed on the basis that major accidental events were not part of the work plan at the licensing stage, noting that the approach was “properly precautionary”.
Political Context
This legal victory comes despite the political shift in Westminster. While the current Labour government has pledged to halt new licensing rounds, it has committed to honouring existing commercial contracts to maintain investor confidence and energy security. Government lawyers argued in court that “honouring” these licences allows companies to conduct preliminary surveys, but emphasised that this does not pre-judge the outcome of future applications for extraction consents, which will face rigorous climate checkpoints.
For the licence holders – a group that includes majors such as Shell and TotalEnergies – the decision removes an immediate legal threat to their exploration rights. However, the judgment serves as a double-edged sword. While validating their current titles, the court explicitly noted that environmental impacts must be evaluated “thoroughly at each subsequent decision point”.
This signals that while companies can explore, the hurdle for moving to commercial production remains high. Operators must arguably prepare for stricter scrutiny of “end-use” emissions if they proceed to development planning, a process that has already stalled high-profile projects like the Rosebank and Jackdaw fields following separate legal challenges.
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Oceana UK expressed disappointment, warning that the decision protects procedural legality at the expense of environmental morality.
“Legally, the government’s decision to grant these licences stands, but morally, it will never be right,” said Hugo Tagholm, Executive Director of Oceana UK, following the verdict. “The government must make clear – as it did in court – that ‘honouring’ existing oil and gas licences does not guarantee that future consents for production will be granted. We need to honour a safe and stable planet for future generations, not yet more profits for big oil.”
The charity indicated it is seeking legal advice on a potential appeal. Meanwhile, the Department for Energy Security and Net Zero welcomed the clarity, maintaining that its licensing regime remains robust and compliant with administrative law.



