Rockhopper Exploration has reaffirmed its commitment to developing the Sea Lion oil field located off the Falkland Islands, despite recent warnings from Argentina. The British energy company owns a 35 percent stake in the project, while its Israeli partner holds the remaining 65 percent.

Argentinian President Javier Milei has expressed concerns over the operation, describing the development as a potential threat. He warned that if swift action is not taken, the UK could soon have the capability to extract oil beneath waters Argentina claims. President Milei further asserted that unless the United Kingdom ceases what he terms “illegitimate exploitation” within two weeks, Argentina would escalate the dispute by seeking intervention from the International Tribunal for the Law of the Sea.

Rockhopper plans to commence drilling in early 2027, with the first phase of production slated to begin in 2028. The initial development phase is projected to require an investment of approximately £1.6 billion. Estimates indicate that the Sea Lion reservoir contains around 314 million barrels of recoverable oil.

The Falkland Islands, a British Overseas Territory, have long been a point of contention between the United Kingdom and Argentina, which claims sovereignty over the archipelago. Tensions have periodically risen in response to resource exploration activities in the region’s surrounding waters.

As Rockhopper and its partners proceed with their project, the dispute underscores the ongoing diplomatic and legal complexities tied to maritime resource rights in contested areas. Both nations have maintained firm stances, with the UK affirming its jurisdiction over the Falklands and their natural resources, while Argentina continues to assert its claims through diplomatic channels and international legal mechanisms.