The Falkland Islands risk losing billions of pounds in economic development if Argentina succeeds in blocking an offshore oil project, the UK government argued at an international tribunal hearing in Hamburg. Ellie Reeves, the attorney general for England and Wales, told the International Tribunal for the Law of the Sea that halting the Sea Lion project would have devastating consequences for the islands' 3,600 inhabitants. The Sea Lion project, led by Israeli firm Navitas and British partner Rockhopper, is scheduled to begin drilling in March and could double the islands' GDP per capita, delivering a cumulative economic uplift of 8 billion pounds over its 35-year lifetime.
Argentina is seeking provisional measures to suspend drilling before further arbitration over the project, claiming it poses environmental risks and breaches a 1976 UN resolution requiring both parties to refrain from unilateral action over the islands until their sovereignty dispute is resolved. Argentina's government, led by President Javier Milei, has declared the project unlawful. Mario Oyarzábal, chief legal adviser to Argentina's foreign ministry, told the tribunal that the islands' 3,600 inhabitants had no right to the surrounding resources, arguing instead that they belong to Argentina's 46 million people. He contended that oil revenues would finance the military presence sustaining British control over the territory.
Reeves rejected Argentina's framing, telling the tribunal that the dispute was fundamentally about sovereignty rather than environmental concerns. She said the Falkland Islanders had a right to self-determination and to exploit their natural resources, and that a provisional suspension would effectively kill the Sea Lion project. Reeves also highlighted Argentina's 1982 military invasion of the islands, which resulted in 649 Argentine military deaths, 255 British military deaths and three Falkland Islander deaths, before stating that the tribunal had no place settling sovereignty disputes. Sir Michael Wood KC, also representing the UK, warned the tribunal against overreaching with provisional measures, which should be used only in exceptional circumstances.
Oyarzábal countered that Argentina was ready to negotiate all aspects of the islands question, including what he termed the present aggravation of the dispute caused by the UK's advancement of the drilling project. He argued that Argentina, as the coastal state, bore responsibility for any environmental incidents such as oil spills, despite Britain being 12,700 kilometres away. The UK's legal team responded that the risk of such incidents was low and that the companies involved had implemented mitigation measures. The hearing, the first substantive litigation on the islands at an international tribunal, continues on Wednesday.
For savers and investors in the Falkland Islands, blocking the Sea Lion project would eliminate a major source of long-term economic growth that the territory depends on for its development.