HAMBURG — Argentina has asked an international tribunal to halt an oil project it has no means of stopping on the ground, and the clearest sign of where its pressure is landing comes not from the court but from the project’s own operator, which says it is replacing two contractors.
The request, filed on Tuesday with the International Tribunal for the Law of the Sea, asks judges to order the United Kingdom to prevent the start or continuation of the Sea Lion development in what Argentina calls the North Malvinas Basin, the tribunal said in a press release. It rests on arbitration Argentina opened against London on September 28. Until a full arbitral panel is formed, article 290 of the UN Convention on the Law of the Sea lets either side ask Hamburg for emergency orders.
Argentina wants three more things: that Britain not use data gathered in the disputed waters against Argentine rights, that it stop preventing Argentina from protecting the marine environment there, and that it refrain from steps that could aggravate the dispute, in particular new permits on the disputed shelf. The tribunal can act only if it finds that the future panel would prima facie have jurisdiction and that the situation is urgent. A hearing date, it said, “will be announced shortly.”
Sea Lion sits about 220 kilometers north of the islands, Al Jazeera reported, and its partners, Israel’s Navitas Petroleum and Britain’s Rockhopper Exploration, are set to begin drilling in the coming months, with oil expected in 2028. Navitas operates the field. Rockhopper holds 35 percent.
The two governments read the same map differently. The UN lists the Falkland Islands, which Argentina calls the Malvinas, as a non-self-governing territory and has long urged both sides to negotiate, UN News noted. Britain has administered them since 1833 and says the islanders decide their own future; no sovereignty talks, London holds, without their consent. Talks have been tried before: EH reported in 2023 on the UK’s response to Argentina’s call for talks on the Falklands. Argentina says it inherited the islands from Spain. In a 2013 referendum, 1,513 of 1,517 voters chose to remain British.
The sharper evidence is commercial. In an announcement relayed by Rockhopper Exploration on October 5, Navitas said Argentina “continues its activity to impose sanctions” on those involved in Sea Lion and that, after a media report on behalf of a contractor said it would not work on the project, it was taking action “to replace two breaching contractors.” Navitas still expects “no material adverse effect,” but its own caveat is blunt: the assessment may not hold if the replacements are “delayed or unsuccessful” or if more contractors step back and no satisfactory alternatives are found.
That is the pressure President Javier Milei promised in September, when, Al Jazeera reported, he announced tougher sanctions on firms involved, new money for a naval base in Tierra del Fuego, and said any further advance on the islands would be “a violation of our national security.” EH reported on those Falklands oil sanctions when they were announced.
Washington is the unspoken variable. Trump has not endorsed Argentina’s claim; asked whether the US position was under review, he said, “I always review every position,” as Al Jazeera reported. Christoph Bluth, a professor at the University of Bradford, told the broadcaster the idea appeared to have originated “inside the Pentagon as leverage against Britain” rather than from any reassessment of the dispute itself. Al Jazeera added that Britain’s defence secretary has called the UK commitment to the islands “unshakeable.” The claim is also fought in public: in July, a Falklands banner at the World Cup sparked a diplomatic row, EH reported.
What the documents do not say is as telling as what they do. Under the convention, parties are bound to comply with measures the tribunal prescribes, but the tribunal has no enforcement arm of its own. The announcements read for this report do not name the two contractors, say whether replacements have been found, or say how London intends to answer in Hamburg.
The tribunal has not yet set a hearing date. The question the judges cannot settle is the one the companies are answering one contract at a time: who will still be working on Sea Lion when it does.
