about-us
About Us
Our Production Facilities
Our Business Partners & Affiliates
History

About Us

Purpuse Driven Approach

We are changing and transforming for a sustainable world by saying "Our Energy to the Future".

We aim to be the Leading Carbon Neutral Energy Company by 2050, with the strength we derive from our deep-rooted experience of more than 60 years.

We aim to advance our identity as Turkey's largest industrial enterprise, with our contribution to the circular economy and the responsibility we take in the journey of transition to a low carbon economy, and to lead the energy transformation.

In line with our Strategic Transformation Plan, we focus on four main business lines that we have determined as "Sustainable Refining", "Biofuels", "Zero Carbon Electricity" and "Green Hydrogen", with the basic approach of "having a balanced and diversified clean energy portfolio that supports our understanding of sustainability".

While meeting our country's energy needs without interruption, we will continue to work with all our strength to produce sustainable value together with our colleagues, business partners, suppliers and all our stakeholders.

People-Oriented Appoach

Our most valuable asset is our employees.

In an equitable, inclusive, fair, and human rights-respecting work environment, we prioritize the 'My Future Safety' approach in all our processes.

Drawing strength from our culture of R&D, innovation, and digitalization, we support the development of our human resources with knowledge and skills compatible with future business models.

Transformation for the Energy of the Future

We aim for sustainable and profitable growth with a balanced business portfolio, creating the highest added value for our country, shareholders, employees, and business partners. Along with our country's net zero journey, we have developed efficiently, resiliend and sustainable transition strategy and we continue to work with all our might to transform into a carbon-neutral energy company.

Responsible Production 

We operate with the awareness that sustainable growth is only possible by preserving the environment and natural resources. We closely follow national and international agendas and policies regarding climate change. We efficiently utilize resources in all our processes for the balance of life, contributing to the circular economy. We work to improve the environmental and social impacts of our value chain.

Inclusive Societal Benefit

With an understanding of sustainable development, we aim for inclusivity in societal benefit. We adhere to the United Nations' Sustainable Development Goals. Embracing the concept of global corporate citizenship, we run projects that support societal development in education, environment, equality, culture, and the arts by adopting a business, public, and civil society cooperation system. 

Our Values

We ensure that our core values "Safety", "Respect", "Honesty" and "Innovation" are fully adopted throughout all practices.

Our Production Facilities

İzmit Refinery

Processing Capacity

İzmit Refinery began production in 1961 with capacity to process 1 million tons/year crude oil. As a result of significant capacity increases and the conversion unit investments over the years, the Refinery's design capacity was registered at 11.3 million tons/year. 

Nelson Complexity

Euro V specifications, the İzmit Refinery is strategically positioned at the core of Türkiye’s petroleum product demand. The Residuum Upgrading Facility, commissioned in late 2014, enables the conversion of 4.2 million tons of high-sulfur fuel oil into approximately 3.5 million tons of higher-value, environmentally compliant white products, predominantly diesel, as well as gasoline and LPG. 

Following these investments, the refinery has reached a Nelson Complexity Index of 14.5, positioning it among the most advanced refineries globally in terms of conversion capability. In 2025, total throughput, including crude oil and semi-finished feedstocks, reached 13.3 million tons, yielding 12.5 million tons of refined products. Total sales volume amounted to 14.4 million tons, of which 12.4 million tons were realized in the domestic market.

11.3 Million Tons

Processing Capacity

3.0 Million m3

Storage Capacity

14.5

Nelson Complexity

14.4

Sales Million Tons

İzmir Refinery

Processing Capacity

With the aim of meeting Turkey's growing requirement for petroleum product, İzmir Refinery was brought intro operation in 1972. The refinery, which stardet production with an annual crude oil processing capacity of 3 million tons is now registered as having an annual refining capacity of 11.9 million tons following significant capacity increases and unit modernizations carried out over the years.

Nelson Complexity

With a Nelson Complexity Index of 7.66, the İzmir Refinery hosts Türkiye’s sole base oil production complex with an annual capacity of 400 thousand tons, maintaining a leading position in this segment. In 2025, total charge, including crude oil and intermediates, reached 10.7 million tons.

The refinery operated at a capacity utilization rate of 90%, producing 10.4 million tons of refined products. Total sales volume stood at 8.7 million tons, with 5.7 million tons supplied to the domestic market.

11.9 Million Tons

Processing Capacity

2.5 Million m3

Storage Capacity

7.66

Nelson Complexity

9.5

Sales Million Tons

Kırıkkale Refinery

Processing Capacity

The facility has an annual crude oil processing capacity of 5.4 million tons, with feedstock supplied via the Ceyhan–Kırıkkale pipeline from BOTAŞ’s Ceyhan Terminal. In 2025, total charge amounted to 4.7 million tons, while refined product output reached 4.5 million tons, corresponding to a capacity utilization rate of 87.6%. Total sales volume, primarily serving the domestic market, was realized at 4.6 million tons.

Nelson Complexity

With a Nelson complexity of 6.32, the Kırıkkale Refinery has Turkey’s largest road tanker filling capacity.

5.4 Million Tons

Processing Capacity

1.3 Million m3

Storage Capacity

6.32

Nelson Complexity

4.6

Sales Million Tons

29.3 MW

Solar Power Plant

Batman Refinery

Processing Capacity

Semi-finished products produced at the Batman Refinery and ready for sale diesel and gasoline products produced at the at the Kırıkkale and İzmit Refineries are transported by rail.

The capacity, which reached 1.1 million tons after the commissioning of the second Crude Oil Processing Unit in 1972, reached 1.4 million tons/year with the expansion investments completed in 2019.

Nelson Complexity

The refinery has a Nelson Complexity Index of 1.83. In 2025, total crude throughput amounted to 711 thousand tons, with total product sales realized at 690 thousand tons.

1.4 Million Tons

Processing Capacity

299 Thousand m3

Storage Capacity

1.83

Nelson Complexity

690 Thousand

Sales Million Tons

7 MW

Solar Power Plant

Entek

Our Power Plants

Entek, which entered actual production in December 1998, commands an installed electricity generation capacity of 490 MWe and a mechanical power capacity of 550 MWm. Entek continues to generate electricity with eight hydroelectric power plants with a total capacity of 263 MWe with its plants in Kahramanmaraş, Karaman, Samsun and Mersin, one wind power plant with a capacity of 50 MWe in İzmir, one hybrid (wind and solar) power plant with a capacity of 66 MWe in Edirne and a natural gas cycle power plant with a capacity of 112 MWe in Kocaeli. With these investments, the share of renewable energy in its portfolio had reached 77% by the end of the year, in contrast with the 100% of its capacity consisting of natural gas cycle power plants until 2011.

Entek is a shareholder in the following companies
Domestically; 100% in Eltek, which carries out wholesale electricity sales activities, 100% in Enspire, which is positioned for foreign investments, 75% in Esinti Energy, the legal entity of the Kınık Wind Power Plant, 10% in WAT Mobility, which was established to expand vehicle charging stations throughout Türkiye, 0.5% in Enerji Piyasaları İşletme A.Ş. (EPİAŞ), which was established to carry out the operation of the Energy Exchange.

Abroad; Through Enspire, 100% in the companies Eco Sun Niculesti and Euromec-Ciocanari, which hold the permits and land for a solar power plant project that will have a minimum capacity of 178.5 MWe in Romania In addition, Enkar, a 100% subsidiary of Entek, was merged with Entek on 30 June 2025 in order to simplify its subsidiary structure.

1 piece

Doğal Gaz Çevrim Santrali EN

8 pieces

Hidroelektrik Santralleri EN

2 pieces

Rüzgâr Santralleri EN

Our Business Partners & Affiliates

Ditaş

Ditaş

A Strong Tanker Fleet all with Türkiye Flag

Ditaş Deniz İşletmeciliği ve Tankerciliği A.Ş. has been operating in the maritime transportation sector since 1974. With a fleet of 17 tankers of various types and sizes and a total carrying capacity of 711,891 DWT, the Company possesses one of the strongest and youngest Turkish-flagged tanker fleets.

In addition to ship management, Ditaş Denizcilik provides brokerage, agency, vetting, and towage services with a workforce of approximately 816 employees. Ditaş Denizcilik conducts its operations with a fleet certified by internationally recognized classification societies and operates in full compliance with all applicable international maritime regulations. Through advanced fleet management systems, planned maintenance processes, and a robust digital monitoring infrastructure, the Company ensures high standards of operational efficiency and safety.

Backed by its experienced workforce and the strength of Koç Holding, Tüpraş, and the Turkish Armed Forces Foundation, Ditaş Denizcilik successfully maintains its operations across Türkiye and in numerous regions worldwide.

520,0665 Crude Oil Tankers
61,3234 Asphalt Tankers
130,5028 Product Tanker
Körfez Ulaştırma

Körfez Ulaştırma

The First Private Train Operation Company

Körfez Ulaştırma A.Ş., wholly owned by Tüpraş, entered operation in December 2017 as Türkiye’s first private railway operator. With its expanding fleet, the company provides Tüpraş with increasing logistical advantages and operational convenience. Körfez Ulaştırma A.Ş. transported a total of 2.4 million tonnes of fuel and intermediate products on the İzmit-Kırıkkale, Kırıkkale-Batman and İzmit-Diyarbakır lines throughout 2025, and safely shipped 172 containers belonging to two different companies and 34 containers on behalf of Tüpraş between Ankara and the port at Körfez. In addition, it started operating on the Halkalı-Kapıkule international freight railway and successfully completed 85 rail services.

As of the end of 2025, 107 engineers were working on Körfez Ulaştırma A.Ş. trains, with a total of 106 personnel employed in the İstanbul and Ankara offices, as well as in the locomotive workshop and warehouse in the Tüpraş Kırıkkale Refinery.

581 Wagons547 Fuel Tank Wagons and 34 Platform Wagons
14 Locomotives5 Diesel and 9 Hybrid
Opet

Opet

Turkey's Favorite Brand in Fuel Distribution

Our business partner in the fuel distribution sector, Opet, operates an extensive distribution network supported by its high storage capacity and nearly 1,966 service stations across Türkiye. Maintaining its strong position in the hearts of consumers for many years, OPET continues to be recognized as the “most loved brand” while also sustaining its title as the most reputable brand in its sector.

Opet ranks 2nd in the white products market and 1st in the black products market.

5Storage Terminals (1.1 million m3)
1.966Stations
302Electric Vehicle Charging Stations
Tüpraş Trading Ltd.

Tüpraş Trading Ltd.

We Deliver Our Products to Our Customers on Four Continents and in 15 Countries

Through our London-based subsidiary, Tüpraş Trading Ltd., which has been operating since 2018, we deliver our products to more than 50 customers across 15 countries on four continents. In addition to trading fuel oil, crude oil, and light and middle distillates, Tüpraş Trading Ltd. continues to contribute to Tüpraş’s risk management activities through derivative transactions in futures markets.

In 2025, the company traded over 4.3 million tons of products, including fuel oil, light distillates, middle distillates, bitumen, and biofuels, and secured more than 9.5 million tons of spot crude oil supply for Tüpraş refineries. The company also conducted approximately 1.7 million tons of third-party trading in 2025. During the year, Tüpraş Trading Ltd. activated its bitumen trading desk.

Additionally, Tüpraş carries out its derivatives transactions in futures markets for inventory price risk management through Tüpraş Trading Ltd.

1.7 mtonsof third party transactions
4.3 mtonsof product trade
9.5 mtonsof spot crude oil connetions
Entek

Entek

Supporting Zero-Carbon Electricity with Entek

Tüpraş in 2022 through a share transfer, continues its transformation in line with its zero-carbon electricity generation target. While making a strong contribution to our generation portfolio within our strategic transformation journey, Entek also aims to accelerate Türkiye’s transition toward a clean energy future.

With Entek’s contribution, we continue to make progress toward our zero-carbon installed capacity targets of 1 GW by 2030 and 2.5 GW by 2035, in line with our strategic focus on zero-carbon electricity. With a total installed capacity of 490 MW, Entek aims to create sustainable long-term business models and deliver value to its stakeholders. Entek holds a 100% stake in Eltek, which conducts wholesale electricity trading activities in Türkiye, and in Enspire, which is positioned for international investments.

It also holds a 75% stake in Esinti Enerji, the legal entity of the Kınık Wind Power Plant (WPP), a 10% stake in WAT Mobilite, established to expand electric vehicle charging infrastructure, and a 0.5% stake in Energy Exchange Istanbul (EPİAŞ). In addition, through Enspire, Entek holds a 100% stake in Eco Sun Niculesti and Euromec Ciocanari in Romania, which own the permits and land for a 178.5 MWe solar power plant project.

490MW of Installed Capacity
8Hydro-electric Power Plants
1Wind Power Plant
1Hybrid Wind and Solar Power Plant
1Natural Gas Combined Cycle Power Plant
Tüpraş Ventures

Tüpraş Ventures

We Are Making Firm Advances in Venture Capital

Tüpraş Ventures was established at the end of 2022 as a wholly owned subsidiary of Tüpraş. The company focuses on investments in energy transition areas such as green hydrogen, sustainable aviation fuel, e-fuels, biofuels, and zero-carbon electricity, as well as operational technologies and venture capital initiatives.

Since its establishment, Tüpraş Ventures has made direct investments in six technology startups operating in the fields of green hydrogen, robotics, thermal energy storage, carbon capture, and sustainable aviation fuel. By becoming a limited partner in two venture capital funds investing in U.S.- and Europe-based technology companies, the company has indirectly invested in 50 startups as of year-end 2025 and has successfully achieved two exits.

History

Türkiye’s first oil refinery, Batman Refinery, which can be considered as the foundation of Tüpraş, began operating in 1955. İzmit Refinery, with production capacity of 1 million metric tons per year, was commissioned six years later. With time, the İzmit facility needed to expand. The refinery's crude oil processing capacity quintupled in 10 years. The next year, a new refinery, capable of processing 3 million metric tons of crude oil per year, was commissioned in İzmir. In 1974, in the İzmir Refinery, Türkiye’s only mineral oil production facility to this day commenced operations. The efforts were going ahead at full steam, and projects were being proposed to increase the refineries' capacity. The İzmit Refinery needed to be re-expanded. The work was completed in 1982, and the crude oil processing capacity of the refinery rose to 11.5 million metric tons per year. These milestones were followed by consolidating İPRAŞ and the three refineries under Tüpraş in 1983. A few years later, Kırıkkale Refinery, which can process 5 million metric tons per year, was commissioned. The following year, crude oil processing capacity expansion efforts brought the annual capacity of the İzmir Refinery to 10 million metric tons. Long-term Investment Plan studies began several years later.

Tüpraş İlk Entegre Raporunu Yayımladı

In the early 90s, Tüpraş was transferred to the Directorate of Privatization Administration. In 1991, 2.5 percent of Tüpraş’s shares were publicly offered, and the company was quoted on the Istanbul Securities Exchange for the first time. This was followed by the commissioning of Kırıkkale Hydrocracker Facility in 1993 and the opening of İzmit Hydrocracker and CCR complexes in 1997. In 1998, the company implemented the Automated Pricing Mechanism, which was expected to increase profitability. The ratio of publicly offered shares reached 3.5 percent in the late 90s, and 34 percent of Tüpraş's shares began to be traded on the Istanbul and London Stock Exchanges with the second public offering in 2000. Maintaining its investment activities, Tüpraş acquired Petkim Yarımca Complex in 2001, launched its İzmit Isomerization Unit in 2002, started its Supply Option Study in 2003, and completed the quality and environment certification processes of its refineries in 2004. A new page opened in a 50-year history that began in Batman as the company grew its publicly offered shares to 49 percent in 2005. The shares were transferred to the Koç Holding a year later.

Tüpraş İlk Entegre Raporunu Yayımladı

Acquisition by Koç Holding expedited the company’s efforts and investments. CCR Reformer and Diesel Desulphurization Units were established in the İzmit Refinery in 2007 and in the Kırıkkale Refinery in 2008. Investments in gasoline spec improvements at the İzmit Refinery began in 2009. Tüpraş’s R&D Center was opened in 2010. A loan agreement for the Fuel Oil Conversion Facility was signed in 2011, and in 2012, the company sold $700 million of Eurobonds with a 5.5-year maturity date.

Tüpraş İlk Entegre Raporunu Yayımladı

In 2014, proudly embracing the responsibility coming from being the seventh largest refinery company in Europe and the 28th in the world, Tüpraş crowned its achievements with the Fuel Oil Conversion Facility, the biggest industrial investment of the country. As the biggest single industrial investment in the history of the Turkish Republic, Tüpraş facilities continued to add more value to Türkiye and its investors.

Tüpraş İlk Entegre Raporunu Yayımladı

T. Aylin Tanker was launched the same year and embarked on its maiden voyage the next. The Effluent Treatment Plant was commissioned in 2016 for the reclaiming of the effluent discharge of the ISU Bay Effluent Facility and its reuse at the İzmit Refinery for industrial purposes.

Tüpraş İlk Entegre Raporunu Yayımladı

In the following year, Tüpraş became the first private railway operation company by establishing Körfez Ulaştırma A.Ş. This was followed by the 7000 Crude Oil Unit Modernization Project at the İzmir Refinery. The company opened to the world in 2018 thanks to the Trade Office in London. In 2019, Tüpraş was chosen as the “Most Successful Turkish Industrial Firm” by the Horizon 2020, the EU’s R&D and innovation program. Bringing Tüpraş products to more than 50 customers from 15 countries across four continents, the London Trade Office became a Tüpraş subsidiary as Tüpraş Trading Ltd. in 2020.

Tüpraş İlk Entegre Raporunu Yayımladı

By the end of 2021, Turkish energy industry leader Tüpraş shared its plans to invest in new areas that promote sustainability and to manage its current assets with an approach that focuses on sustainable and profit-based growth as part of its Strategic Transition Plan, set out with the aim of leading the energy industry of the future.

Tüpraş İlk Entegre Raporunu Yayımladı

Tüpraş’s strategic transition journey aims to become carbon-neutral by 2050 with the “Energy to the Future” motto. This transformation is fueled by enhancing the efficiency of current operations, investing in products with added value, and supporting new investments in green hydrogen, electricity, and biofuels. Tüpraş is one of the supporting institutions of the Task Force on Climate-related Financial Disclosures. It is also a member of the leading stakeholder in the hydrogen market, Hydrogen Europe, and Europe’s water platform, Water Europe. Furthermore, the company researches production of sustainable jet fuel from raw materials based on plant and animal waste. It has taken firm steps towards its goal of 1 GW of installed energy capacity by 2030, and 2.5 GW by 2035, thanks to the recently acquired Entek.

Tüpraş İlk Entegre Raporunu Yayımladı

It continues to work resolutely with an eye on its responsibility toward future generations. As a signatory to the United Nations Women Empowerment Principles (UN WEPs), the company was featured in Bloomberg’s Global Equality Index (GEI) and is a party to the Global Compact thanks to its efforts for gender equality throughout its production sites and offices and in every platform.

Tüpraş İlk Entegre Raporunu Yayımladı

Tüpraş was chosen to be one of 50 "Companies to Watch" in 2022 by Bloomberg Intelligence, Bloomberg's independent research initiative. As the seventh largest refinery company in Europe and 30th in the world, the company continues to meet Türkiye’s energy demands and bring sustainable value to its stakeholders and the economy.

Türkiye's leading industrial company, Tüpraş continues to strive for tomorrow's energy and tomorrow's Tüpraş.