Spain is not an important crude oil producer, yet oil continues to play a major role in its transport system, industrial economy and international trade. The country meets almost all its crude requirements through imports, processes much of that oil in large domestic refineries and distributes the resulting fuels through one of Europe’s most developed petroleum logistics networks.
This creates a distinctive position within the European oil market. Spain’s energy security does not depend on maintaining large domestic oilfields. It depends on access to international suppliers, reliable maritime routes, competitive refineries, extensive fuel storage and the ability to move petroleum products efficiently across the country.
The industry is also entering a period of structural change. Demand for road and aviation fuels remains substantial, but Spain’s climate policy, renewable energy growth and transport electrification are forcing refiners to prepare for a market in which conventional oil consumption is expected to decline.
Domestic Oil Production Has Almost Disappeared
Spain has a history of limited oil exploration, but domestic production has never been large enough to meet more than a small fraction of national demand. Commercial production took place at the Ayoluengo field in Burgos and at several offshore fields in the Mediterranean, including the Casablanca field near Tarragona.
Ayoluengo stopped regular production after its operating concession expired, while the Casablanca offshore platform ended production in 2021. Recent national statistics show only negligible indigenous crude output. Spain therefore operates as an almost completely import-dependent oil market.
The possibility of rebuilding domestic production is also restricted by policy. Spain’s 2021 Climate Change and Energy Transition Law ended the granting of new hydrocarbon exploration authorisations, research permits and production concessions. Existing concessions cannot generally be extended beyond 2042.
As a result, Spain’s future oil industry will be centred on imports, refining, logistics and fuel marketing rather than new domestic fields. Geological potential is less important than the commercial value of the country’s ports, industrial plants and access to Atlantic and Mediterranean shipping routes.
A Diverse Crude Import System Limits Reliance on One Supplier
Spain imported approximately 61.4 million tonnes of crude oil in 2025. This was 4.9% lower than in 2024, but the volume still demonstrates the scale of the country’s refining requirements.
The United States was Spain’s largest individual crude supplier during the year, providing 15.2% of imports. Brazil accounted for 13.6% and Mexico supplied 12.3%. Nigeria, Libya, Algeria, Saudi Arabia, Iraq and Kazakhstan were also important sources.
The geographic distribution was relatively balanced. North America supplied 33.1% of imported crude, while Africa provided 30%. Central and South America, the Middle East, and Europe and Eurasia made up most of the remainder. OPEC members accounted for 37.5% of Spain’s crude imports, meaning that most supply came from producers outside the organisation.
This diversity is one of Spain’s main energy-security strengths. Refiners are not tied to a single pipeline or producing region and can purchase different crude grades from Atlantic, Mediterranean, African, Middle Eastern and American suppliers.
Coastal access also allows refiners to change suppliers when sanctions, political instability, shipping disruptions or changes in price affect a particular market. Imports from Venezuela, for example, fell sharply in 2025 as sanctions and commercial restrictions changed trading conditions. Refiners were able to compensate through purchases from other countries.
Nevertheless, import diversity cannot remove every risk. Spain remains exposed to global crude prices, tanker costs, maritime security and disruptions in major shipping corridors. The oil system is resilient because it has many supply options, not because it is independent from the international market.
Refineries Give Spain a Larger Role Than Its Oilfields
Spain’s strongest petroleum assets are its refineries. The country has around 1.59 million barrels per day of nameplate refining capacity, making it one of the larger refining centres in the European Union.
Repsol operates major industrial complexes at Cartagena, Tarragona, Bilbao, A Coruña and Puertollano. Moeve, the company formerly known as Cepsa, operates the Gibraltar-San Roque refinery near Algeciras and the La Rábida refinery in Huelva. BP operates the Castellón refinery, while the ASESA facility in Tarragona specialises in asphalt and heavy products.
Most of these plants are located near the coast. This gives them direct access to crude oil delivered by tanker and allows refined products to be shipped to European, Mediterranean, Atlantic and African markets. Puertollano is the main inland exception and receives crude through a pipeline connected to Cartagena.
Spain’s refineries are relatively complex plants capable of processing different crude grades and producing diesel, gasoline, aviation fuel, liquefied petroleum gas, petrochemical feedstocks, lubricants, asphalt and other products. Their role is therefore broader than supplying Spanish motorists.
Refined petroleum products are also exported, giving Spain an industrial and trading position that would not be expected from its very limited domestic crude production. The country can import raw crude, process it in high-value facilities and sell finished fuels into regional markets.
Refining also supports petrochemicals, transport services, port activity, engineering companies and industrial employment. Important clusters have developed around Cartagena, Tarragona, Bilbao, Huelva, Algeciras and Castellón, where refining is connected to chemical manufacturing and maritime logistics.
Pipelines and Storage Connect Ports with Inland Demand
Spain has an extensive oil-product transport and storage system. Exolum, previously known as CLH, operates more than 4,000 kilometres of product pipelines as well as storage terminals and aviation-fuel facilities.
The pipeline network connects mainland refineries and major import ports with inland distribution centres. It allows gasoline, diesel, kerosene and other products to be transported in large volumes without depending entirely on road tankers or rail services.
Around 90% of primary inland oil-product transport has historically moved through the pipeline network. This reduces congestion and creates an efficient link between coastal refineries and major consumption centres such as Madrid and other inland cities.
Spain also has substantial commercial and strategic storage capacity. Refineries, ports, independent terminals and inland depots hold crude oil and finished products, while CORES manages part of the country’s emergency-stock system. National rules are designed to meet European Union and International Energy Agency requirements for minimum petroleum reserves.
The value of this system became visible after Spain’s nationwide electricity disruption in April 2025. Authorities temporarily released a limited portion of compulsory petroleum stocks to protect supplies of road fuels and aviation kerosene. The event showed that oil security involves not only crude imports but also electricity-dependent terminals, pumps, communications systems and distribution facilities.
The Canary and Balearic islands require additional logistical planning because they are separated from the mainland pipeline network. Fuel must be delivered by sea and stored locally, making ports and coastal terminals especially important to island energy security.
Transport Keeps Petroleum Demand High
Petroleum-product consumption increased by 1.4% in 2025 to about 60.2 million tonnes, its highest level since 2011. Road-fuel demand grew by 2.6%, including a 7.8% increase in gasoline consumption and a 1.1% increase in diesel.
The figures show that oil remains deeply connected to Spanish mobility despite rapid renewable electricity development. Passenger cars, freight transport, construction machinery, agriculture, fishing, shipping and aviation continue to consume large quantities of liquid fuel.
Tourism is particularly important. Spain’s airports serve large numbers of international and domestic passengers, supporting substantial demand for aviation kerosene. Aviation fuel is more difficult to replace than petrol used by passenger vehicles, making airports an important long-term market for conventional and sustainable fuels.
Diesel remains the largest petroleum-product category because of freight transport, commercial vehicles and industrial use. Gasoline demand has also recovered as the passenger-vehicle market changes and travel activity remains strong.
Electric vehicles will gradually reduce road-fuel consumption, but the transition will take time. Spain has a large existing vehicle fleet, and many cars and trucks will continue using petroleum products for years after the share of electric vehicles in new sales increases.
Refineries Are Being Rebuilt Around Lower-Carbon Fuels
Spain’s oil companies are attempting to preserve the value of their industrial sites while reducing dependence on conventional petroleum. This does not require an immediate closure of refineries. It requires the gradual replacement of some fossil feedstocks with waste oils, biomass-based materials, renewable hydrogen and captured carbon.
Repsol has opened a renewable-fuels plant at its Cartagena complex with capacity to produce approximately 250,000 tonnes per year of renewable diesel and sustainable aviation fuel from waste materials. It is also developing synthetic-fuel, renewable-hydrogen and biogas projects connected to existing industrial sites.
Moeve is directing investment toward second-generation biofuels and green hydrogen in Andalusia while continuing to operate the San Roque and La Rábida refining centres. BP is developing renewable-hydrogen and sustainable aviation fuel projects around Castellón.
These investments reflect the main question facing Spanish refining: whether existing facilities can remain competitive as European petroleum demand falls. Plants that can process alternative feedstocks and supply lower-carbon aviation, maritime and industrial fuels may have a stronger future than facilities limited to conventional gasoline and diesel.
Spain’s ports, pipelines, storage terminals and skilled industrial workforce give the country a strong starting position. However, refinery conversions require large investments, stable regulations and reliable supplies of waste materials, renewable electricity and hydrogen.
Spain’s oil sector is therefore moving toward a different role. Crude production has almost disappeared, but petroleum refining and distribution remain economically significant. The long-term value of the industry will depend on whether its large coastal complexes can evolve from conventional refineries into broader centres for renewable fuels, hydrogen, chemicals and low-carbon transport energy.
