Shell, TPAO and OMV Petrom Form Exploration Consortium for Black Sea Han Tervel Block

Why It Matters

The partnership adds a new, potentially gas‑rich asset to Europe’s supply mix while sharing risk among major operators, enhancing regional energy security.

Key Takeaways

• OMV Petrom acquires 25% stake in Han Tervel block.
• Shell remains operator with 42% interest.
• TPAO holds 33% through TPOC subsidiary.
• Exploration licence granted for five-year term.
• Project pending Bulgarian government approval.

Pulse Analysis

The Black Sea has emerged as a frontier for offshore hydrocarbons, with a series of recent finds reshaping Europe's energy map. Bulgaria’s Han Asparuh field already proved commercial gas, prompting operators to target adjacent acreage. The newly announced Han Tervel block, covering roughly 4,000 km², sits directly south of that success and promises similar reservoir characteristics. As regional demand for gas intensifies, the basin offers a rare opportunity to augment supply without relying on distant imports. The basin's relatively shallow water depths also reduce drilling costs.

Shell, Turkey’s TPAO and Romania’s OMV Petrom have formed a balanced consortium that spreads technical risk and capital exposure. Shell retains a 42% operator’s share, TPAO’s subsidiary TPOC holds 33%, while OMV Petrom joins with a 25% stake, subject to Bulgarian approval. The farm‑in agreement unlocks access to 3‑D seismic data, a prerequisite for drilling decisions, and the five‑year licence provides a clear development window. This structure mirrors successful models in West Africa and the North Sea, where joint ventures accelerate project timelines. The joint venture also benefits from existing infrastructure on the Bulgarian coast.

For OMV Petrom, the deal extends a four‑decade presence in the Black Sea and diversifies its portfolio beyond the Neptun Deep gas field. By aligning with global majors, the Romanian firm gains access to advanced drilling technology and shared cost structures, enhancing its competitive edge. At a time when the EU seeks to reduce reliance on Russian gas, additional Black Sea supply could bolster regional energy security and attract further investment. The partnership therefore signals a broader shift toward collaborative offshore development in southeastern Europe. Long‑term contracts with European utilities are already being discussed.

Deal Summary

OMV Petrom has joined Shell and Turkish Petroleum Overseas Company Limited (TPOC) in a consortium to explore the Han Tervel offshore block in the Bulgarian Black Sea, acquiring a 25% stake. The farm‑in agreement has been signed and awaits Bulgarian regulatory approval, with the partners planning seismic analysis and potential drilling on the 4,000 km² block.