An Argentine court has ordered the suspension of a British-Israeli oil project near the Falkland Islands, in the latest escalation of Argentina's long-running campaign to assert sovereignty over the South Atlantic archipelago administered by Britain. The interim ruling, issued Wednesday by a court in Tierra del Fuego — Argentina's southernmost province — orders Rockhopper Exploration and Israel's Navitas Petroleum to halt all activity related to the Sea Lion oilfield, located roughly 220 kilometres north of the islands. The suspension applies until an environmental impact assessment has been conducted before a competent national authority.
The case was brought by veterans of the 1982 Falklands War and environmental lawyers, who sought to block drilling, infrastructure installation and hydrocarbon extraction at the site. The judge gave the parties ten days to submit details on the project's status, contractors and financiers. Argentina's government under President Javier Milei has itself taken separate legal action, arguing that the project violates UN General Assembly Resolution 31/49, which calls on both sides to refrain from unilateral actions while the dispute remains unresolved. London, for its part, flatly rejects Argentine jurisdiction over the islands, stating that its domestic law does not apply there and that regulating economic activity is a matter for the islands' own government.
The court order is part of a broader, intensifying Argentine campaign. Foreign Minister Pablo Quirno has filed three criminal complaints covering ten companies and their directors, and Argentina's foreign ministry has sent around 180 warning notices to individuals and companies across 30 countries, while opening 60 administrative proceedings. None of those allegations has been proven, and no proceeding has yet resulted in a penalty. On Tuesday, Buenos Aires rejected British government guidance titled "Doing Business with the Falkland Islands," calling it a unilateral act that breaches international resolutions, and summoned the British and Israeli ambassadors to receive formal protest notes.
The legal manoeuvres carry little practical enforcement power outside Argentine territory — a reality all parties acknowledge — making them largely symbolic. The UN resolutions Argentina invokes are General Assembly recommendations without binding force. Britain and Argentina fought a brief but bitter war over the islands in 1982, which ended with an Argentine surrender after 74 days and left more than 900 dead on both sides. Argentina refers to the islands as the Malvinas and rejects the outcome of a 2013 referendum in which 99.8% of islanders voted to remain a British overseas territory, arguing that the principle of self-determination does not apply to what it regards as a population implanted by Britain after 1833.
Why this matters: the dispute has gained fresh momentum after US President Donald Trump indicated Washington might reconsider its historically neutral stance on the islands — a shift that Buenos Aires has interpreted as an opening to press its claim more forcefully. With a final investment decision already taken on the Sea Lion project, the legal pressure from Argentina is unlikely to halt development on its own, but it signals that Buenos Aires intends to raise the diplomatic and commercial cost for any company doing business in the territory.