Hellenic Energy Holdings S.A. is a leading integrated energy company with a significant presence across Southeast Europe. It is primarily engaged in the refining, supply, and trading of oil products, ... Hellenic Energy Holdings S.A. is a leading integrated energy company with a significant presence across Southeast Europe. It is primarily engaged in the refining, supply, and trading of oil products, operating three of Greece’s four refineries with a combined capacity of 342,000 barrels per day, accounting for over half the country’s oil refining market. The company’s value chain extends to large-scale fuels marketing, supported by an extensive retail network of more than 1,500 service stations in Greece and over 300 stations across Cyprus, Serbia, Bulgaria, Montenegro, and North Macedonia. As the sole domestic producer of petrochemicals, Hellenic Energy Holdings commands a dominant position in Greece’s polypropylene supply. Beyond traditional hydrocarbons, the company is actively investing in renewable energy, targeting up to 2 GW of renewable energy capacity by 2030, and plays a role in power generation—especially through its interest in gas-fired plants and the retail electricity sector. With a robust export orientation—over 60% of sales come from international markets—the company is a central conduit for energy supply, distribution, and transformation in the region, driving both Greece’s and broader regional energy transitions.