What is Tüpraş? (Türkiye Petrol Rafinerileri A.Ş.)
Turkish industrial giant Tüpraş (officially registered as Türkiye Petrol Rafinerileri A.Ş.) stands as a dominant force in European energy refining, petrochemical production, and sustainable green technology development. Founded in 1983 through the consolidation of state-owned refineries under the Turkish Petroleum Corporation (TPAO), the company hit a historic milestone in 2006 when Koç Holding acquired the majority stake through privatization. Operating as the largest industrial enterprise in Türkiye, the corporation serves as a vital regional energy hub, processing diverse crude oil variants and supplying high-grade petroleum products to international and domestic markets.
Ownership Structure, Stakeholders, and Corporate Governance
Publicly traded on the Borsa İstanbul (TUPRS), Tüpraş operates under a stable corporate framework. The company’s equity structure is anchored by Enerji Yatırımları A.Ş.—a joint venture directly controlled by Koç Holding, Aygaz, and related Koç Group affiliates—which holds a definitive 46.40% controlling interest. The company maintains a high level of market liquidity with a public float of 46.77% traded openly on international capital markets, successfully bridging major Turkish industrial influence with global investment capital.
The executive leadership team at Tüpraş is highly specialized, navigating volatile global energy markets and complex refining logistics. General Manager İbrahim Yelmenoğlu continues to successfully steer the company through its multi-billion-dollar modernizations and green energy initiatives. Reinforcing its senior executive ranks, the company appointed Gökhan Dizemen as the new Assistant General Manager of Finance (CFO) in March 2026, bringing extensive financial management expertise from within the Koç Group to further optimize the company’s capital allocation and operational efficiency.
Manufacturing Hubs, Refinery Locations, and Strategic Capabilities
Tüpraş coordinates its industrial operations across four high-capacity refining centers strategically situated near major Turkish industrial and maritime nodes. The core of its refining capacity is anchored by the İzmit Refinery, which features a high complexity index and serves as a premier hub for processing heavy crude variants into clean diesel and jet fuel. The company expands its coastal logistics through the İzmir Refinery in Aliağa, which boasts extensive storage capabilities and an advanced lubricant production plant, and the Kırıkkale Refinery, strategically positioned in central Anatolia and directly connected to the capital via a dedicated crude oil pipeline network.
The company also maintains its historic Batman Refinery, which specializes in processing domestic heavy crude oil from local southeastern fields into high-grade asphalt and specialized fuel products. Beyond physical refining plants, Tüpraş owns a massive domestic maritime logistics network through its subsidiary DİTAŞ, and operates an international trading arm, Tupras Trading Ltd, based in London, United Kingdom. This extensive ecosystem ensures that the company can optimize shipping costs, source raw materials fluidly from diverse global suppliers, and secure uninterrupted energy distribution.
Financial Power and the Strategic Transition to Clean Energy
Tüpraş maintains an unparalleled financial status, consistently ranking as Türkiye’s top industrial enterprise by revenue. In the 2025 fiscal year, the company registered strong performance, generating a massive consolidated annual revenue of 830 billion TRY. This exceptional fiscal strength allows the company to secure long-term investment credit lines, self-fund massive refinery upgrades, and distribute consistent, high-yield dividends to its public and institutional shareholders.
Seeking to ensure long-term corporate viability amid the global climate shift, Tüpraş is actively executing its comprehensive Strategic Transition Plan to become carbon-neutral by 2050. Under this long-term investment blueprint, the company is transforming into a zero-carbon energy entity by allocating significant capital toward sustainable aviation fuel (SAF) production, green hydrogen generation, and zero-emission electricity networks through its renewable energy arm, Entek. This dual-track strategy allows Tüpraş to maximize revenues from traditional petroleum assets while systematically leading the regional industrial transition toward a sustainable, high-tech energy future.