Portugal accounts for just 1.3% of European gas demand. The country has no indigenous gas production and has been wholly reliant upon imports since gas was introduced in to the market in 1997. Portugal imports Algerian piped gas through the Maghreb pipeline via Spain and LNG into its terminal at Sines, built in 2003 and expanded in 2012. Portugal's national oil and gas monopoly Galp Energia has supply agreements for LNG from Nigeria. Energias de Portugal (EDP), Portugal's largest gas distributor, imports piped gas from Algeria under a long-term supply contract. In 2014, EDP also signed a 20-year agreement with Cheniere to import US LNG from as early as 2019 and in 2018 signed a contract with Venture Global for 1mmtpa of LNG for 20 years, set to start in 2023. Due to the lack of access to other European piped imports, LNG plays a key role in improving Portugal's diversity of supply. The terminal offers non-discriminatory, regulated third party access.