[1] Portugal submitted a claim to extend its jurisdiction over additional 2.15 million square kilometers of the neighboring continental shelf in May 2009,[2] which would result in a marine territory of more than 3,877,408 km2.
Until 2015,[3] Spain disputed the EEZ's southern border, maintaining that it should be drawn halfway between Madeira and the Canary Islands.
Portugal exercises sovereignty over the Savage Islands, a small archipelago north of the Canaries, hence claiming an EEZ border further south.
Spain had objected by arguing that the Savage Islands do not have a separate continental shelf,[4] citing article 121 of the United Nations Convention on the Law of the Sea.
The Savage Islands are a protected Portuguese natural reserve, and thus its only year-round inhabitants are workers of Madeira Natural Park who look over the isolated natural reserve, protecting its wildlife.