Naturgy and Enagás, through its subsidiary Scale Green Energy, have reached an agreement to advance the decarbonisation of maritime transport in the Iberian Peninsula through the construction and long-term charter of a next-generation LNG supply vessel.
The vessel, named Mistral LNG, will be designed to supply liquefied natural gas (LNG) and BioLNG to all types of vessels. With a cargo capacity of 18,900 cubic metres, the ship is intended to become a benchmark for sustainable maritime fuel supply in Europe.
Construction began in early 2026, with Scale Green Energy set to operate the vessel. Naturgy will charter the ship from 2028 under a long-term agreement.
Mistral LNG will primarily operate in the Iberian Peninsula, reinforcing the region’s role as a strategic hub for LNG and BioLNG bunkering in southern Europe. Operations will also cover the Strait of Gibraltar, the Canary Islands and other Atlantic destinations.
The vessel will measure 138.8 metres in length and feature a dual-fuel engine, a service speed of 13 knots and a range exceeding 4,500 nautical miles. It will be equipped with advanced technologies designed to minimise emissions and optimise operational efficiency while supplying LNG and BioLNG fuels.
Through this initiative, Naturgy strengthens its position as a strategic operator in the Iberian LNG and BioLNG bunkering market, which is expected to see strong growth in the coming years. The project supports the company’s broader commitment to the energy transition by offering competitive and lower-emission fuel solutions. Naturgy is a key player in Spain’s energy supply, including as the country’s main natural gas importer.
For Enagás, the project further consolidates its role as a shipowner and operator in LNG bunkering in southern Europe. Mistral LNG will join its existing fleet of bunkering vessels, which includes Levante LNG, Alisios LNG and Haugesund Knutsen. The expansion supports European efforts to reduce maritime emissions and strengthens the utilisation of Spain’s LNG infrastructure. Spain’s seven regasification terminals are already adapted for LNG bunkering, with facilities in Barcelona, Cartagena, Huelva and Gijón offering BioLNG supply services for ships and tanker trucks.
The project is also aligned with growing demand for alternative marine fuels and compliance with new European regulations requiring progressive emissions reductions. In 2024, orders for LNG- and BioLNG-fuelled vessels doubled compared with 2023, and demand for LNG bunkering in the Iberian Peninsula is expected to continue rising.
