The United States returned to stand in October as the main source of natural gas arriving in Spain, stringing together three consecutive months at the top and concentrating 44.3% of the total supply received during that month, which allows it to come close to Algeria in the overall figures for 2025.
In detail, the volume of liquefied natural gas (LNG) coming from the United States that entered the Spanish gas system reached 14,510 gigawatt hours (GWh), above the 13,711 GWh recorded in October 2025, according to figures collected in the Enagás Statistical Bulletin.
With these data, the United States consolidates itself as the leading monthly supplier of natural gas to Spain for the third month in a row. Algeria comes next, contributing 30.6% of the total in October, with 6,827 GWh transported via the Medgaz pipeline and another 3,192 GWh in the form of LNG, while Portugal occupies third place with 6.9%.
Russia moved into fourth place as a gas supplier to Spain, with 2,086 GWh and a share of 6.4% of the total received in October, after the first month without Russian gas entries occurred in September since the start of the invasion of Ukraine in 2022.
If the cumulative figures for 2025 are analyzed, Algeria, which historically has been the main supplier of natural gas to Spain except for the "sorpasso" of U.S. LNG in 2022, still maintains the lead with a share of 33.9%, though with the United States now very close, at 32.2%. Russia, with 14.3% of the total, remains the third source of supply.
So far this year, the Spanish gas system has received natural gas from 15 different countries. In addition to Algeria, the United States, and Russia, Nigeria, Portugal, France, Angola, Congo, Norway, Mauritania, or Turkey stand out, without any arrival of gas having been recorded from Middle Eastern countries, a region shaped by the conflict in Iran.
As for regasification activity, Spanish plants operated a total of 23 methaner-carrier ships unloaded in October, below the 26 vessels that had been handled in the same month of the previous fiscal year.
Regarding underground storage, useful stocks at the end of October stood at 28,955 GWh, which implies a filling level of 81% of the system’s useful capacity.
Domestic gas demand falls 9.9% in October
In the consumption chapter, gas demand in the domestic market during October reached 26.318 GWh, which represents a decline of 9.9% compared with the same period of the previous year.
This drop is mainly due to the evolution of conventional consumption, which recorded a significant adjustment with respect to the 2025 records, with a decrease of 12.9%.
Despite this specific decline in October, cumulative gas demand for the whole year continues in positive figures, with an increase of 1.2%, to 268.349 GWh. At the same time, gas use for electricity generation saw a year-on-year drop of 5.1% in October, standing at 10.733 GWh.