What is the estimated reserve size of the Cronos gas field?

Eni has estimated that the Cronos discovery holds approximately 2.5 trillion cubic feet (tcf) of gas in place. Subsequent appraisal through the Cronos-2 well confirmed robust reservoir characteristics and enhanced the overall resource base for Block 6.

How will the gas from the Cronos field most likely be exported?

The most commercially viable route under consideration is a deepwater subsea tie-back linking Cronos to Eni's operational infrastructure at Egypt's Zohr field or via pipeline to Egypt's Idku or Damietta LNG terminals. From Egypt, the gas can be re-exported to European markets as LNG.

Who are the key concession holders in Cyprus's Block 6?

Block 6 is managed by an equal partnership between Italian energy major Eni, which serves as the operator with a 50% stake, and France's TotalEnergies, which holds the remaining 50% working interest.

Offshore Technology · September 9, 2026 (7h ago) · 1 min read

McDermott wins subsea contract for Cronos gas field off Cyprus

Block 6 ENI S.p.A. Cronos

Isometric technical illustration of a licensed Cyprus EEZ exploration block with an active drillship — Illustration: Block 6

Analysis

AI-assisted analysis · reviewed by Yuri Kan

Eni Cyprus has formally engaged McDermott to deliver subsea engineering and installation services for the Cronos field in offshore Block 6. This contract award indicates that the operator is actively executing early-stage engineering, procurement, and construction activities to tie the discovery into regional infrastructure. The progression underscores Eni and partner TotalEnergies' commitment to fast-tracking commercialization of Cyprus's deepwater gas assets amid sustained European demand for alternative energy corridors.

Key Facts

McDermott has been officially selected by Eni Cyprus to carry out subsea infrastructure works for the Cronos development.
The Cronos field is located within Block 6 in the deep offshore waters of Cyprus's Exclusive Economic Zone (EEZ).
Block 6 is operated by Italy's Eni holding a 50% working interest, alongside partner TotalEnergies with the remaining 50%.
Cronos-1, discovered in August 2022, is estimated to hold approximately 2.5 trillion cubic feet (tcf) of gas in place, with further upside confirmed by the Cronos-2 appraisal well drilled in early 2024.
The scope of work typical for this subsea contract includes front-end engineering, flowline architecture, and preparation for tying the deepwater wells back to production facilities.
Development plans for Cronos contemplate a subsea tie-back directly to Eni's existing Zohr field processing infrastructure or onshore liquefaction plants in Egypt.

Background & Context

The Cronos field was first tapped in mid-2022 via the Cronos-1 exploration well, revealing a significant carbonate reservoir analogous to Egypt's supergiant Zohr field. In early 2024, Eni and TotalEnergies successfully concluded appraisal drilling at Cronos-2, validating reservoir quality and flow performance to support commercial viability. Block 6 hosts multiple discoveries, including Calypso and Zeus, making it the focal point of the consortium's fast-track production strategy across the Levantine Basin.

Market Impact

This subsea contract signifies an important transition from the appraisal phase to concrete development execution for Cyprus's hydrocarbon sector. By advancing front-end and subsea contracts, Eni is laying the operational groundwork for a commercial development plan that can link East Med resources to regional processing facilities. For service contractors like McDermott, the award reflects renewed capital deployment in Mediterranean deepwater projects. If executed swiftly, it strengthens Eni's operational footprint in the region and provides the Cypriot state with a tangible path toward monetization and sovereign revenue.

What to Watch

Industry observers should monitor the submission and formal government approval of the field development plan (FDP) for Block 6. Final investment decision (FID) parameters, pipeline export agreements linking the field to Egyptian processing facilities, and detailed engineering milestones will serve as key benchmarks over the next 12 to 18 months.

Why This Matters for Cyprus

This award directly accelerates the monetization of one of Cyprus's primary offshore gas assets, located entirely within its southern EEZ. Developing Cronos brings Cyprus closer to achieving domestic energy security and establishing itself as a key supplier in Europe's broader regional gas supply matrix.

Frequently Asked Questions

What is the estimated reserve size of the Cronos gas field?: Eni has estimated that the Cronos discovery holds approximately 2.5 trillion cubic feet (tcf) of gas in place. Subsequent appraisal through the Cronos-2 well confirmed robust reservoir characteristics and enhanced the overall resource base for Block 6.
How will the gas from the Cronos field most likely be exported?: The most commercially viable route under consideration is a deepwater subsea tie-back linking Cronos to Eni's operational infrastructure at Egypt's Zohr field or via pipeline to Egypt's Idku or Damietta LNG terminals. From Egypt, the gas can be re-exported to European markets as LNG.
Who are the key concession holders in Cyprus's Block 6?: Block 6 is managed by an equal partnership between Italian energy major Eni, which serves as the operator with a 50% stake, and France's TotalEnergies, which holds the remaining 50% working interest.

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