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An operator looking at the lights of a refinery at night

Sector leaders

We have one of the most efficient refining systems in Europe, which allows us to generate higher value products with a lower carbon intensity.
  • Refinery icon

    6 refineries

    five of which are interconnected and operate as one 24 hours per day, 365 days per year.
  • Ship icon

    Logistical advantage

    Distribution from two of the most important points in Europe: the Atlantic Ocean and the Mediterranean Sea.
  • Barrel icon

    1 million+

    barrels per day: the refining capacity of our industrial complexes.

How the refining process works

We use chemical and physical processes to transform crude and other raw materials into better quality products with higher added value for sale.


The crude oil obtained from wells around the world travels to our Industrial Complexes by sea or in pipelines. After it has arrived, it is analyzed and sent to different areas of the refinery for processing. 

The first stage in processing crude oil consists in physically separating the hydrocarbons found in the oil according to their boiling point. First, the crude oil is fed into a distillation column where it is heated at high temperatures. Then, the lighter components, such as gases, rise to the top of the column while the heavier ones, such as lubricants and bitumens, stay at the bottom. Even though we tend to think of gasoline or diesel, there's a lot more we can obtain from crude oil. Tires, asphalts, plastics, containers, and numerous other products have one thing in common: they all came out of an oil barrel.