Argentina has opened sanction proceedings against 45 people and companies tied to oil and gas exploitation around the Falkland Islands, which Buenos Aires calls the Malvinas. The government also plans to send a bill to Congress this week that would broaden the penalties it can impose. At the same time, three of the world's biggest oil companies have ruled out taking part in hydrocarbon projects in the archipelago. The moves point to a harder line from the Milei administration as it presses its claim over the islands.