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UK and Argentina clash over the Falklands Sea Lion oil project at a Hamburg tribunal

4 articles from 2 sources
First reported on Tuesday 10 November 2026 at 24:25 EST by The Independent·Latest article on Thursday 12 November 2026 at 04:11 EST

Summary

The UK and Argentina clashed over a Falklands oil project as a Hamburg tribunal prepared to hear the dispute, The Independent reported on Tuesday 10 November, Prime Minister Andy Burnham saying the UK does not 'accept Argentina's characterisation' of the situation. Argentina told the tribunal that Britain's approval of oil drilling off the Falkland islands has dramatically deepened a sovereignty dispute that led to war four decades ago, The Guardian reported, an Argentine legal team arguing at the start of the legal clash at the Hamburg-based International Tribunal for the Law of the Sea (Itlos) that the oil project must be suspended, the Sea Lion project being in the North Falkland basin. On Wednesday 11 November an Argentine lawyer mocked the UK's sovereignty claim in the case, saying Britain is wrong to believe in a historic doctrine that the Crown has sovereignty over parts of oceans, The Guardian reported. On Thursday 12 November The Guardian reported that Argentina threatened the chief executive of a UK oil firm with jail over Falklands drilling, the legal notice coming as Buenos Aires ramps up rhetoric over the UK territory and seeks to halt the Sea Lion project.

Latest: Argentina threatened the chief executive of a UK oil firm with jail over Falklands drilling, The Guardian reported, the legal notice coming as Buenos Aires ramps up rhetoric over the UK territory and seeks to halt the Sea Lion project.

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How it unfolded

  1. Thursday 12 November

    Argentina threatened the chief executive of a UK oil firm with jail over Falklands drilling, The Guardian reported, the legal notice coming as Buenos Aires ramps up rhetoric over the UK territory and seeks to halt the Sea Lion project.

  2. Wednesday 11 November

    An Argentine lawyer mocked the UK's sovereignty claim in the Falklands oil case, saying Britain is wrong to believe in a historic doctrine that the Crown has sovereignty over parts of oceans, The Guardian reported.

  3. Tuesday 10 November

    Argentina told the Hamburg-based International Tribunal for the Law of the Sea that Britain's approval of oil drilling off the Falkland islands has dramatically deepened a sovereignty dispute that led to war four decades ago, an Argentine legal team arguing that the oil project must be suspended, The Guardian reported, and Andy Burnham said the UK does not 'accept Argentina's characterisation' of the situation, according to The Independent.