Argentina seeks UNCLOS arbitration to halt Falklands oil project

Argentina has initiated criminal proceedings against the Israeli company Navitas and its British partner Rockhopper Exploration, the core companies behind the offshore Sea Lion oil project. President Javier Milei has vowed to block the project and is expected within 24 hours to request arbitration under the UN Convention on the Law of the Sea (UNCLOS) to halt drilling, following an expired two-week deadline given to the UK.

Under the UNCLOS claim, Buenos Aires will allege the UK breached a UN resolution by making unilateral modifications and will seek a binding ruling to stop the project. A draft national sovereignty bill in Argentina's congress would expand sanctions to affiliates, financial intermediaries, shareholders, and suppliers of those companies. The bill also contains clauses that could target participants in the Falklands fishing industry, a large part of the islands' economy.

UK and Falklands authorities warn of political intimidation

Tensions over Falklands sovereignty have reached levels not seen since the 1982 war. UK officials are concerned by attempts to bully people and companies out of working in the islands. Foreign Secretary Ed Miliband told MPs the UK will protect businesses through protection of trading interests legislation, which could allow those affected to claim damages in UK courts.

Ed Miliband said: "The UK’s support for the Falkland Islands is steadfast. Argentina’s attempts to intimidate businesses and individuals engaged in legitimate commercial activity are unacceptable." He added the UK would always stand up for the islanders' right to determine their own future and pursue economic development. Workers in the oil and fisheries sectors are concerned they could be targeted if they travel to South America. Argentina continues to claim sovereignty over the 700 islands, dismissing a 2013 referendum where 99.8% of residents voted to remain a British territory.

Interpol rejects political use of red notices in Falklands dispute

The UK has asked Interpol to reject Argentina's requests for the arrest of individuals connected to the Sea Lion project. In a letter to Interpol's headquarters in Lyon, Britain argued the 'red notice' requests were politically motivated. Interpol screens red notices, which are requests to locate and provisionally arrest a person pending extradition, but member countries decide independently whether to act on them.

Interpol's response stated it would respect Article 3 of its constitution, which forbids intervention of a political character. Falkland Islands government chief executive Andrea Clausen acknowledged the use of Interpol was a threat. "One would hope that Interpol wouldn’t necessarily take action," Clausen said. Despite this, concerns remain that Argentina could persuade member states its requests are based on domestic law rather than politics.

Economic stakes and historical context heighten tensions

The Sea Lion oil project in the North Falkland Basin has the potential to triple the islands' GDP. The archipelago lies 300 miles east of the southern Patagonian coast. The 1982 Falklands War, which fuels the ongoing dispute, lasted 74 days and resulted in significant casualties.

UK government sources believe the UNCLOS arbitration mechanism will not consider a sovereignty dispute. Falklands assembly member Dean Dent noted four recent similar cases taken to UNCLOS were all disregarded by the tribunal as sovereignty issues, not maritime ones.

Falklands prepare for UK’s tougher response as deadline passes

With Argentina's deadline now passed, the UK is assembling a strong legal response. At a public meeting, Dean Dent told constituents the UK government had assembled an in-depth team of legal advisers and KCs as a first step. The UK government is expected to be increasingly muscular in its approach to Argentina in the coming days.