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Chevron and HELLENiQ Sign Leases for Four Offshore Greek Blocks Pending Parliamentary Approval

The 70/30 consortium plans 2D/3D seismic surveys before late 2026 to determine whether drilling is warranted.

Overview

  • Chevron will operate the venture with a 70% stake, while HELLENiQ ENERGY holds 30% following selection through a 2025 international tender.
  • The leases cover South Crete 1, South Crete 2, South of Peloponnese and Block A2, spanning roughly 47,000 square kilometers in ultra-deepwater areas.
  • Phase one centers on seismic data acquisition to assess hydrocarbon potential, with any exploratory drilling contingent on positive survey results.
  • The agreements will take effect only after ratification by the Greek Parliament, which is the next procedural step before field activities begin.
  • Greek leaders cast the deals as advancing energy sovereignty as Chevron extends its Eastern Mediterranean portfolio.