Enagás SA engages in the business of natural gas transmission. It operates through the following segments: Infrastructure Activity, Technical System Operator Activity, and Unregulated Activities. The Infrastructure Activity segment refers to activities such as gas transport which is the movement of gas through the Group's transport network, composed of gas pipelines for the primary and secondary transport of gas to distribution points as owner of Spanish gas transport network; the regasification which refers to the unloading of gas where is it stored in cryogenic tanks; and the storage which is the operation of underground storage facilities. The Technical system Operator Activity segment develops functions for ensuring the continuity and security of supply, as well as good coordination between the access, storage, transportation, and distribution points.The Unregulated Activities segment includes all deregulated and transactions related to Group associates. The company was founded in 1972 and is headquartered in Madrid, Spain.