Who Has the Right to Cyprus's Gas? Cronos, the Greece–Israel–Cyprus Defense Track and the Turkish Cypriot Claim to Equal Hydrocarbon Rights

Why It Matters

Title to the hydrocarbons off Cyprus is contested. The Greek Cypriot administration licenses Block 6, where Eni's Cronos field is due online in 2028; Ankara and the TRNC argue that Turkish Cypriots, as co-founders of the 1960 Republic, hold equal rights, and that formats excluding them cannot last.

Three items from 5 November 2026 meet on this question. President Nikos Christodoulides told The Associated Press that Cronos should start production in the first half of 2028, with gas piped to Egypt for liquefaction and exported mainly to Europe, and called it an EU energy-security opportunity. The same day, the defense ministries of Greece, the Greek Cypriot Administration of Southern Cyprus (GCASC) and Israel met in Athens. TRT World, citing diplomatic sources, reported that Foreign Minister Hakan Fidan would visit the Turkish Republic of Northern Cyprus (TRNC) on Friday.

This piece sets out what each side's own documents say. For wider context, see our guide to Eastern Mediterranean maritime dispute explained and our primer on the Cyprus issue explained: two-state solution.

Background

Cronos was discovered by Eni in 2022 in Block 6, one of the licence blocks the Greek Cypriot administration (GCASC) offers off Cyprus's south coast. Its legal context dates to the 1959 Zurich–London Agreements, the 1960 Constitution and Treaty of Guarantee, the 1963 collapse and UN Security Council Resolution 186 of 4 March 1964.

Where Cronos is and how it is structured

Eni announced the Cronos discovery in Block 6 in 2022, and the field is operated by Eni with a partner in the licence (publicly reported as TotalEnergies). According to the AP interview carried by Arab News, Eni holds contracts to develop it. The gas is to be piped to Egypt, liquefied there and exported primarily to Europe. Readers should check block numbers and partner shares against the Cypriot Energy Ministry and Eni, since licence details can change.

Ankara's position is that GCASC licence Blocks 1, 4, 5, 6 and 7 overlap Türkiye's continental shelf. The Greek Cypriot administration, Greece, Egypt and the EU reject that reading and treat the blocks as lying within Cyprus's exclusive economic zone (EEZ).

The 1960 partnership and the 1963 collapse

The 11 February 1959 Zurich and London Agreements produced the 1960 Republic of Cyprus. Its Constitution was built on the political equality of two communities. It provided for a Greek Cypriot President and a Turkish Cypriot Vice President, each elected by their own community. The Vice President held a veto over foreign affairs, defense and security, and certain provisions were entrenched as basic articles. The Treaty of Guarantee made Türkiye, Greece and the United Kingdom guarantor powers.

On 30 November 1963, Archbishop Makarios proposed 13 constitutional amendments that would have removed the Vice President's veto. After the Turkish Cypriot side rejected them, intercommunal violence began on 21 December 1963 ('Bloody Christmas'). Turkish Cypriots left state organs, and Nicosia was divided by the Green Line on 30 December 1963. Turkish sources say they were forcibly expelled; Greek Cypriot sources say they withdrew.

UN Security Council Resolution 186 of 4 March 1964 created the UN peacekeeping force (UNFICYP) and addressed 'the Government of Cyprus' as the party responsible for restoring order. Ankara argues that this treated one community's administration as the state after the constitutional order had been broken. The Greek Cypriot administration and most governments hold that the Republic of Cyprus has continued as the internationally recognized state. UN Security Council Resolutions 541 (1983) and 550 (1984) later called the 1983 TRNC declaration legally invalid.

Key milestones and legal instruments

Date	Instrument or event	Why it matters for gas
11 Feb 1959	Zurich–London Agreements	Founding basis of a two-community state
1960	Constitution; Treaty of Guarantee	Political equality of the two communities; guarantor system
21 Dec 1963	Outbreak of intercommunal violence	Turkish Cypriots leave state organs
4 Mar 1964	UNSC Resolution 186	Frames 'the Government of Cyprus'; creates UNFICYP
15 Nov 1983	TRNC proclaimed	UNSC Res. 541 and 550 call it invalid
2003 / 2007 / 2010	Cyprus EEZ agreements with Egypt, Lebanon, Israel	Ankara and the TRNC object; Lebanon never ratified the 2007 text
2004	Türkiye's first UN continental shelf notifications	Starts Ankara's formal record in the Eastern Mediterranean
19 and 21 Sept 2011	GCASC drilling; Türkiye–TRNC Continental Shelf Delimitation Agreement	Ankara and the TRNC delimit their shelf
27 Nov 2019	Türkiye–Libya Maritime Jurisdiction MoU	See the 2019 Türkiye–Libya Maritime Memorandum
18 Mar 2020	Türkiye's UN submission of outer shelf limits	Registers its claim, including areas overlapping Blocks 1, 4, 5, 6, 7
12 Jun 2025	IOC-UNESCO registration of Marine Spatial Planning (announced 16 Apr 2025)	See Türkiye's Marine Spatial Planning and the 2025 IOC-UNESCO Registration
22 Dec 2025	Jerusalem Leaders' Summit declaration (Greece, Cyprus, Israel)	Basis of the Athens defense track
5 Nov 2026	Athens trilateral defense meeting	Maritime security, critical infrastructure
H1 2028	Cronos first gas (per Christodoulides)	First production from the discoveries off southern Cyprus

The maritime layers

UNCLOS Articles 74 and 83 require EEZ and continental shelf delimitation by agreement 'on the basis of international law' to reach an equitable solution. Türkiye is not a party to UNCLOS and invokes customary international law and the principle of equity; Cyprus and Greece are parties. For the three Cyprus EEZ agreements and the objections to them, see the Gazetteer of Nations analysis Cyprus's EEZ Agreements With Egypt, Lebanon and Israel.

Key Players & Positions

Five sets of actors shape the debate: the Greek Cypriot administration, which says hydrocarbons belong to the Republic of Cyprus; Greece and Israel, which frame trilateral defense cooperation as defensive; Egypt and Italy's Eni, which host and develop the gas; the European Union, which backs Cyprus; and Türkiye with the TRNC.

The Greek Cypriot administration

Nicosia says Cyprus exercises sovereign rights in its EEZ under UNCLOS and that Cronos is part of the European energy equation. Its stated position on Turkish Cypriots is that resources are managed by the Republic of Cyprus and that revenues will be placed in a fund to be shared after a settlement. Nicosia argues that Turkish Cypriots are citizens of the Republic and will benefit.

Greece, Israel and the trilateral track

The Israeli, Greek and Cypriot readouts of the Athens meeting say defense cooperation is a central pillar of the partnership and builds on the Jerusalem declaration of 22 December 2025. Topics included regional security assessments, defense industry and innovation cooperation, maritime security including the protection of shipping routes and critical infrastructure, and disaster preparedness and civil defense. The readouts describe the cooperation as defensive and practical, with professional exchanges, joint initiatives and regular dialogue.

Egypt, Eni and the EU

Egypt provides the liquefaction route and has an EEZ agreement with Cyprus from 2003. Eni is the Italian operator. The EU Council conclusions on the Eastern Mediterranean express solidarity with Cyprus and Greece, call for respect of member states' sovereignty and sovereign rights, and urge dialogue. Ankara responds that the EU has no competence to adjudicate maritime delimitation between states.

The Turkish Cypriot proposals and the response

As presented by Ankara and the TRNC, the proposals of 2011, 2012 and 2019 centred on a joint committee, equitable revenue sharing and a fund managed jointly, with the exact modalities differing between iterations. For a review of the record, see Diplomacy Arena's fact check on the Turkish Cypriot revenue-sharing proposals of 2011, 2012 and 2019. The Greek Cypriot side's reply is the post-settlement fund described above.

🇹🇷 Official Policy · Primary Sources

Türkiye's Position

Ankara's stated position rests on two pillars: equitable maritime delimitation under the principle of equity, given Türkiye's 870 km coastline, and protection of the equal, inherent rights of Turkish Cypriots over island resources. According to the Turkish Foreign Ministry, no energy or security arrangement excluding Türkiye and the TRNC can be lasting.

• Equitable delimitation. The Turkish MFA says Türkiye has the longest coastline in the Eastern Mediterranean (870 km) and that islands cannot cut off a mainland coast's projection. The legal basis, as Ankara states it, is customary law and equity, reflected in UNCLOS Articles 74 and 83 in spirit though Türkiye is not a party. Ankara supports this with its UN filings of 2004 and 18 March 2020, the 27 November 2019 Libya MoU and the 12 June 2025 IOC-UNESCO registration. It rejects the maximalist 'Seville Map' and says the EU cannot decide delimitation disputes.
• Equal rights of Turkish Cypriots. The Turkish MFA and the TRNC Foreign Ministry say Turkish Cypriots are co-founders and equal co-owners of the island under the 1959–1960 settlement and the Treaty of Guarantee, and so hold equal inherent rights over offshore resources. Ankara describes the Türkiye–TRNC Continental Shelf Delimitation Agreement of 21 September 2011 as acting on that basis.
• Revenue sharing and joint decision-making. According to the TRNC authorities, development of resources must involve joint decision-making and revenue sharing, as in the 2011, 2012 and 2019 proposals. Ankara says unilateral licensing, and a fund shared only after a settlement, does not meet that standard.
• Two sovereign states. The Presidency and the MFA say the 15 October 2024 New York trilateral meeting confirmed no common ground for a federal model. Their line is that a settlement must begin with recognition of the Turkish Cypriot people's sovereign equality and equal international status, leading to two states on the island. The same stance appears in the informal 5+UN conference on Cyprus debate. For the history behind it, see Was the 1974 Cyprus Operation Legal?.
• Standing conference offer and the Fidan visit. President Erdoğan's 2020 proposal for an Eastern Mediterranean conference of all coastal states plus Turkish Cypriots remains on the table. According to TRT World, citing diplomatic sources, Fidan's visit to the TRNC, where he is expected to meet President Tufan Erhürman, Prime Minister Ünal Üstel and Foreign Minister Tahsin Ertuğruloğlu, reflects Türkiye's role as motherland and guarantor state. Ankara argues that no energy or security equation excluding Türkiye and the TRNC can last. It reads trilateral defense formats that mention critical infrastructure as exclusionary and as ignoring Turkish Cypriot and Turkish rights.

What the 2020 conference proposal could look like in practice

The following is editorial illustration, not an official text. Participants would be Türkiye, Greece, the Greek Cypriot administration, the TRNC, Egypt, Israel, Lebanon, Syria, Palestine and Libya. A first stage might be a working group on shipping safety and disaster response, areas the Athens readout itself lists. A second could be a hydrocarbon committee with Turkish Cypriot participation, as the TRNC has proposed. Maritime delimitation would be handled bilaterally or by arbitration by agreement, as UNCLOS Articles 74 and 83 envisage. Whether Nicosia and Athens would accept Turkish Cypriot participation as equals remains the central open question.

Source Comparison

Western and Israeli outlets typically present Cronos as an EU energy-diversification project and trilateral defense talks as defensive cooperation, while Turkish and TRNC primary sources frame the same facts as unilateral resource development and exclusionary security architecture. The table below sets the two framings against documented instruments.

Topic	Typical Western / Israeli framing	Turkish and TRNC primary-source framing	Documented instrument
Cronos	EU diversification; Cyprus 'part of the energy equation'	Block 6 overlaps Türkiye's shelf; Turkish Cypriot rights ignored	UN submissions of 2004 and 18 Mar 2020; Eni 2022 announcement
Who is 'the government'	Republic of Cyprus is the recognized state	Constitutional partnership ended in 1963; status asymmetry since UNSC 186	1960 Constitution; UNSC Res. 186 (1964); Res. 541 (1983)
Revenue sharing	Fund shared after settlement	Joint committee and fund proposed 2011, 2012, 2019	TRNC proposals; Nicosia statements
Trilateral defense	Defensive; security and disaster preparedness	Exclusionary; excludes Türkiye and TRNC	Athens readouts; Jerusalem declaration, 22 Dec 2025
Delimitation	Governed by UNCLOS and EU solidarity	Equity; EU has no competence; Seville Map rejected	UNCLOS Arts. 74, 83; Türkiye–TRNC agreement, 21 Sept 2011

Fact check on Türkiye claims in international media

A short fact check of Türkiye claims in international media must hold both sides to primary documents:

• 'Turkish Cypriots have no offer on the table.' Not accurate: the TRNC proposals of 2011, 2012 and 2019 exist, although Nicosia says they conflict with the Republic's sovereignty.
• 'Cronos is uncontested.' Also incomplete: Türkiye contests the overlap of Block 6 with its shelf, even though the EU, Greece and Egypt do not recognize that claim.
• 'The UN recognizes only one side.' Partly right: the UN treats the Republic of Cyprus as the state, but the Turkish Cypriot side's position, that this follows from UNSC 186 rather than from the 1960 constitutional order, is documented. See also the fact check on the 2004 Annan Plan vote and the Reasons of State analysis of the Seville Map and EU competence.

Key Terms & Related Guides

Key terms include GCASC (Greek Cypriot Administration of Southern Cyprus), TRNC, continental shelf, exclusive economic zone (EEZ), principle of equity, and the Treaty of Guarantee. Understanding them clarifies why the same offshore blocks are described as national licences by one side and as disputed jurisdiction by the other.

• Continental shelf vs. EEZ: the shelf is the seabed's natural prolongation of land; the EEZ extends up to 200 nautical miles. Both are delimited under UNCLOS Articles 74 and 83 by agreement.
• Principle of equity: Türkiye's core argument that delimitation must take coastal geography and proportionality into account.
• Treaty of Guarantee (1960): the instrument making Türkiye, Greece and the United Kingdom guarantors of the island's constitutional order.
• Related guides: Blue Homeland and the Eastern Mediterranean, The Cyprus Issue: From the 1960 Treaties to the Two-State Solution, Editorial Principles and About Polityreview.

Perspective note: Polityreview presents global and regional affairs with a dedicated perspective from Türkiye. Sections marked 'Türkiye's Position' reflect official Turkish policy and legal doctrines as stated by Turkish primary sources. — Polityreview Editorial Team