Navitas Petroleum LP notified the Tel Aviv Stock Exchange that it is replacing two contractors in breach of their obligations after they decided not to work on the Sea Lion maritime oil project near the Falkland Islands, according to Globes. The decision follows threats of sanctions from Argentine President Javier Milei, who recently announced his government would seek international arbitration against the United Kingdom to halt the $1.8 billion development.
Navitas replaces contractors after investor share drop
Navitas stated that it is taking action to replace the two breaching contractors and will make necessary adjustments to the project, as may be required. Despite the supplier shake-up, the partnership insists the development retains full backing from both the Falkland Islands Government and the United Kingdom government, expecting no material adverse impact on operations. The energy exploration partnership is headed by founder Gideon Tadmor.
Investors responded cautiously to the geopolitical friction. Trading data shows Navitas participation units dropped over 5% in a single session and fell 15% over the course of a month, according to Globes. Meanwhile, London-listed partner Rockhopper Exploration PLC saw its shares slide 10% to 54.50 pence, Alliance News reported. Navitas currently has a market cap of NIS 13.8 billion and a three-year return of 290%.
Argentina issues ultimatum over disputed oil field
The operational hurdles stem from a sharp escalation by Buenos Aires. Argentine President Javier Milei announced that his administration gave the United Kingdom a two-week ultimatum to halt work on Sea Lion, threatening to ask the Hamburg-based International Tribunal for the Law of the Sea for emergency binding orders. Milei’s administration has also advanced legislation proposing up to 20 years in prison for unauthorized resource extraction around the islands. This bill extends penalties to fishing.

The diplomatic pressure has already altered contractor lineups beyond Navitas’s immediate replacements. U.S. oilfield services provider Halliburton confirmed it will not conduct work on Sea Lion after Argentine federal authorities raised questions regarding civil and criminal enforcement. Argentina is currently investigating at least 60 companies and executives for potential violations connected to hydrocarbon activities in the disputed South Atlantic waters, including sanction proceedings against 45 individuals and legal entities.
Navitas targets March 2028 for oil production start
Despite the legal pressure from Argentina, Navitas remains committed to the project due to its financial weight. Second-quarter presentations show that Sea Lion accounts for more than half of the $9.73 billion in expected oil sales across all Navitas projects, Globes reported. Rockhopper estimates the field holds approximately 1.7 billion barrels of oil in place, with 500 million barrels of independently audited 2C recoverable resources.
The budget for the project stands at $1.8 billion, with commercial oil production scheduled to begin in March 2028, according to Globes. The reservoir is expected to produce 35 million barrels of oil a day. Navitas holds a 65% operating stake in the venture, while Rockhopper Exploration holds the remaining 35% interest in the North Falkland Basin licenses.
Territorial Dispute and Legal Status
Argentina has opposed offshore hydrocarbon exploration around the islands since drilling resumed in 2010, when Buenos Aires challenged the legitimacy of UK-issued licenses. The UK rejects Argentina’s sovereignty claims, stating that islanders have the right to determine their own future. In a 2013 referendum, residents voted overwhelmingly to remain a British overseas territory. An Argentine judge also ordered a halt to Sea Lion work this month pending an environmental review.
The dispute dates back to a 1982 war that killed 255 British service members, 649 Argentine troops, and three islanders. While the International Tribunal for the Law of the Sea can issue binding emergency orders, it has no means of forcing the UK government to comply.
Argentina demands halt to Sea Lion project work
What is the official Argentine position on the Sea Lion project?
President Javier Milei’s government views the Sea Lion project as illegal exploitation of Argentine resources. Buenos Aires has given the United Kingdom a two-week notice to halt work or face arbitration at the International Tribunal for the Law of the Sea, alongside proposed legislation carrying up to 20-year prison terms for unauthorized drilling.
How much of Navitas Petroleum’s expected revenue relies on Sea Lion?
Sea Lion accounts for more than half of the $9.73 billion that Navitas expects to generate from total oil sales across its various projects, according to corporate presentations.
When is oil production at Sea Lion expected to begin?
Commercial production at the North Falkland Basin reservoir is scheduled to commence in March 2028, backed by a project budget of $1.8 billion.
What did the UK government and local authorities say about the project?
Navitas and Rockhopper continue to advance development with the full backing of the Falkland Islands Government and the United Kingdom government, maintaining that local islanders retain the right to develop their natural resources. Regarding the clash, a presidential statement from Argentina claimed, Argentina will not stand idly by
.
Keep reading