Spain Natural Gas Market - Strategic Insights and Forecasts (2026-2031)

The Spain Natural Gas Market is projected to register a strong CAGR during the forecast period (2026-2031).

Spain has increasing importance within the European gas system and will continue to play a critical role in moving gas flows between regions in Europe. The 2025 Enagás throughput figures indicate that demand in the power sector is responsible for driving the recovery of gas demand in Spain and the return to significant re-export activity from Spain, confirming that Spain will remain critical in balancing supplies of natural gas throughout Europe as countries source their natural gas supplies through more diverse means. The CNMC has begun to deliver more regulatory influence over the unbundling of hydrogen transport, and has appointed Enagás to be the interim operator of the National Hydrogen Network. As a result of these and other factors, the Spanish gas market will grow in strategic importance as a primary source of re-exported gas and hydrogen to the rest of the European Union using the Pyrenees interconnectors.

Market Dynamics

Market Drivers

• Variation in Renewable Supply: The occurrence of extreme weather has led to unprecedented volatility in Spain's solar and wind generation, necessitating that gas generation can respond not only in less than an hour but also more than a day after the event occurred to stabilise the electricity market due to said decline. Thus, the consistently growing demand for gas-fired generation units will result in them becoming the principal backbone of the Spaniards transitioning away from fossil fuels within their electric market.

• Dependable North African Supplies: The relationship between Spain and North African nations regarding the flow of natural gas, particularly through the Medgaz pipeline, will provide the Spanish market with the stability of a dependable long-term supply necessary to support Spain on its journey towards producing green hydrogen by the anticipated 2030.

• Electricity generation in Spain - Total electricity generation in Spain increased by 0.7% y-o-y to 20 TWh. However, natural gas-fired power generation surged by 75% y-o-y, primarily to balance low wind and hydro output caused by unfavourable weather conditions

• Energy Security Through Re-Directing - Central European countries are relying more and more on Spain's surplus regasification capacity to supply them with alternative non-Russian sources of supply. The continuing increase in re-export activity from Spain of high-margin international gas/LNG cargoes is ensuring on-going demand for these services.

Market Restraints and Opportunities

• Regulatory Adjustments to WACC - The CNMC has increased the risk-free interest rate for natural gas transportation over the next four years (+80 basis points). As a result, infrastructure operators will need to improve efficiency in operating processes in order to obtain the revenue they are required to receive.

• Hybridising Industrial Gas Supply - A growing number of larger-scale consumers are installing hybrid boilers that allow them to make use of either natural gas or renewable electricity. This trend is engendering a shift from traditional to flexible/demand-responsive natural gas contracts in the industrial sector.

Supply Chain Analysis

The Spanish supply chain is transitioning from a traditional import-consumption model into a complex re-export and blending network. According to IEA, Spain accounted for over 85% of Europe’s total LNG imports from Russia in Q1-Q3 2025. Regasification terminals at Huelva, Cartagena, and Bilbao are serving as critical nodes for both domestic grid injection and maritime bunkering. This evolution is forcing a tighter integration between Enagás (as the TSO) and regional distributors like Naturgy to manage the introduction of biomethane and hydrogen. Consequently, the value chain is becoming increasingly digitalised to manage multi-directional gas flows and guarantee the origin of renewable gases.

Government Regulations

Key Developments

• March 2025: Enagás and Swiss-based Axpo commenced operations of the Alisios LNG, a newbuild bunkering vessel designed to expand Spain's maritime gas refueling capacity.

Market Segmentation

By Method

The various methods of producing natural gas depend on the extraction technique, which can vary depending on the geological formation it's located in. The traditional method of extracting Natural Gas is by drilling a vertical borehole to access a pocket of gas. The horizontal drilling method provides greater contact with the gas-bearing formation and therefore reduces extraction costs. Fracking or hydraulic fracturing is the process of using high-pressure fluid (water and/or sand) to fracture the rock layers and release any previously trapped gas.

By Location

Natural Gas is produced from either onshore or offshore drilling. The onshore drilling sites are land-based and are generally much easier to access and develop than offshore fields, which are located beneath the seabed and typically much deeper. The offshore drilling fields require more sophisticated and expensive rigs and equipment, and involve far more technical and logistical challenges. Both of these locations provide a substantial portion of the supply of Natural Gas around the world, with onshore drilling practices being more consistent and predictable, while offshore drilling operations are required to remove large quantities of Natural Gas from much deeper formations. The combination of both offshore and onshore sites ensures that there will always be a continued supply of Natural Gas globally, in an effort to balance the risks, capital investments, and production efficiencies associated with extracting Natural Gas from various geological formations while continuing to meet the increasing global demand for Natural Gas.

By Application

Natural gas has a variety of functions. It is an energy source for generating electricity by powering turbines and stations with lower carbon emissions than coal. The petrochemical industry uses natural gas as feedstock when making plastics, fertilizers and chemicals. Residential applications include heating, cooking and water heating. Compressed and liquefied natural gas are increasingly being used in transportation as fuel for vehicles to reduce carbon emissions. Other uses of natural gas in the industrial sector include heating and providing backup power systems. The total amount of global use of natural gas will determine how suppliers will develop their supply strategies, create infrastructure and set pricing and also place emphasis on energy efficiency and the environment.

List of Companies

Naturgy Energy Group

Repsol

Endesa

Iberdrola

Enagás

TotalEnergies España

Shell España

BP España

EDP España

E. ON España

Naturgy Energy Group

Naturgy is strategically distinct for its vertical integration, controlling a significant portion of Spain's retail gas market and holding long-term supply contracts from Algeria. The company is pivoting toward the "Gás Renovável" (Renewable Gas) strategy, aiming to lead the domestic biomethane market. This focus is ensuring that Naturgy remains the primary link between traditional gas supply and future green gas consumers. The outcome is a resilient business model that balances legacy gas dominance with a credible transition path.

Enagás

Enagás is positioning itself as the critical infrastructure "backbone" of the Spanish energy system and the future manager of the European hydrogen corridor. The company is distinguishing its strategy by divesting from non-core international assets to fund the massive investment required for H2med and the Spanish Hydrogen Backbone. This infrastructure-first approach is resulting in stable, regulated returns while securing a central role in the EU energy transition. Consequently, Enagás is the indispensable gateway for all gas entering or transiting the Iberian Peninsula.

Endesa

Endesa is distinguishing its strategy by integrating its gas retail business with a massive push into electrification and battery storage. This approach is allowing Endesa to maintain a high customer retention rate despite gas price volatility. As a result, Endesa is serving as the primary model for a "customer-centric" utility that manages the transition from gas to a fully electrified residential market.

Analyst View

The Spain natural gas market is transitioning into a diversified "Energy Hub." Success for operators depends on the ability to leverage existing LNG infrastructure for both global trade and the imminent integration of renewable hydrogen into the national grid.

Spain Natural Gas Market Scope: