Turkey and Libya formalize sea corridor that challenges Greek energy plans

For ordinary consumers in Europe, the energy landscape may soon look different as a new maritime agreement takes shape in the eastern Mediterranean. This deal effectively redraws the economic map of the region, potentially altering how natural gas moves to market. While the immediate impact on household bills is not yet known, the shift signals a more complex and competitive environment for energy supply. It also means that the routes chosen for future pipelines and cables will face new legal and political hurdles, which could affect the timing and cost of energy projects that reach international consumers.

The core of this development is a unanimous vote by Libya's parliament on Tuesday. This decision approves a maritime agreement with Turkey that establishes a direct economic corridor between the two countries. The corridor stretches from Turkey's southern coast to Libya's northern shore. This is not a new concept, as the two sides first agreed on this link in 2019 with the Government of National Accord in western Libya. However, the political dynamics have changed significantly. The rival government in eastern Libya, which previously opposed the deal, has now reversed its stance. Turkey's Foreign Ministry has welcomed this shift, viewing it as a consolidation of its influence in the region.

The financial stakes are high because the seabed between these two nations is rich in resources. Recent discoveries have revealed large deposits of oil and gas in this area. Estimates suggest that natural gas reserves worth several hundred billion US dollars could lie beneath the water. Ankara and Tripoli aim to secure their economic rights to these resources and exploit them jointly. By formalizing the corridor, they create a legal framework for shared development, which strengthens their negotiating position with global energy partners.

The agreement has immediate consequences for Greece, which shares a border with both countries. The planned corridor ignores the presence of Greek islands, including Crete, Karpathos, and Rhodes. Athens maintains that it holds a comprehensive exclusive economic zone around these islands. Greece's Foreign Ministry announced its firm opposition to the accord, stating that it has the backing of the European Union. The EU has described the memorandum as null and void because it violates the sovereign rights of third states and is inconsistent with the Law of the Sea.

Kaja Kallas, the EU's high representative for foreign affairs and security policy, echoed this sentiment. She wrote on social media that she had raised the issue of the Libyan vote and stressed that it infringes upon the sovereign rights of third states. Her comments highlight the diplomatic friction that now exists between the EU bloc and the Turkey-Libya axis. The EU's stance reinforces its support for Greece's legal interpretation, putting further pressure on the new agreement.

At the heart of the dispute is a legal question about whose claims are legitimate. Greece relies chiefly on the UN Convention on the Law of the Sea. Article 121 of this convention gives inhabited islands that support an economic life of their own the same exclusive economic zone rights as mainland territory. Athens argues this covers Crete, Rhodes, and Lesbos. It also points to a 2022 ruling by the International Court of Justice involving Colombia and Nicaragua, which held that overlapping interests require a fair demarcation that weighs coastlines, geography, and the effects of any boundary.

Turkey takes a different view, arguing that Mediterranean geography deserves special weight. If every small Greek island near the Turkish and Cypriot coasts received a full exclusive economic zone, Turkey says it would be largely cut off from the open sea. Ankara never signed the UN convention and does not accept arbitration by a UN tribunal. Even legal experts disagree about what a fair division would look like in this complex geography, making the dispute a long-term challenge for regional stability.

The politics in Libya have shifted considerably since 2019, when civil war was raging and Turkey intervened militarily to support the Tripoli government. A Turkish charm offensive has since brought a rapprochement with the camp of General Khalifa Hifter in the east. Turkish firms have won contracts worth billions for reconstruction, and Turkey's state oil company is working with Libya's National Oil Corporation on plans for seismic surveys off the coast. Turkey also supplies weapons and training to Hifter's forces, which helps push back against Egyptian and Russian influence in the east.

This agreement also threatens the planned EastMed pipeline. This project was meant to carry gas from Israel and Cyprus through Greece to bolster EU energy security. The new corridor cuts across its planned route. Turkey has argued that cable or pipeline projects on its claimed continental shelf need its consent. Over the long term, the region could split into two blocs: a Turkey-Libya axis and an EU-supported grouping of Greece, Cyprus, Egypt, and Israel. This division will likely shape energy and defense policies in the Mediterranean for years to come.