History
1. Before Saibu Gas In 1902, 11 years before Saibu Gas was established, Nagasaki Gas was born as Kyushu's first gas company. Nagasaki Gas Co. then joined with Hakata Gas, Kumamoto Gas, and Kokura Gas, and in 1913, become Saibu Gas Conglomerate. Then, after merging and seceding with several companies, Saibu Gas Group operations were temporarily taken over by Toho Gas in 1927. Three years later, on December 1st, 1930, Saibu Gas Group seceded from Toho Gas and officially become Saibu Gas.
2. The history of Saibu Gas
1930	Acquires Toho Gas's branch operations in Fukuoka, Kumamoto, Nagasaki, and Sasebo. With 10 million yen capital and a customer base of 29,000, Saibu Gas established. Headquarters located in Chiyo, Fukuoka City.
1943	Merges with Kyushu Gas. Capital increases to 14 million yen and customer base doubles to 63,700.
1945	After air raids during WWII, customer base drops to 35,000, facilities are severely damaged.
1949	Registered on the Fukuoka Stock Exchange.
1950	Registered on the Osaka Stock Exchange.
1951	Fukuoka Higashihama Works completed.
1953	Major flooding in Kumamoto and Kitakyushu temporarily halts operations. Service quickly resumes.
1954	Headquarters relocated to Kego, Fukuoka City.
1956	Customer base breaks the 100,000th mark.
1962	Oil gas facilities established in Nagasaki, gas conversion commenced.
1964	Calorific value increases from 3,600kcal to 4,500kcal.
1971	Nagasaki Works completed, Nakanoshima Works closed. All coal gas facilities closed.
1973	Customer base breaks the 500,000th mark.
1974	Registered on the Tokyo Stock Exchange.
1975	Private brand gas apparatus sales begin.
1976	Customer base breaks the 600,000th mark; Becomes under the direct administration of the central government. Tokyo representative office opened. Omuta-Kumamoto pipeline completed, introduction of purchased gas to Kumamoto Works.
1977	Kitakyushu Works completed.
1982	Flooding in Nagasaki disrupts service to 42,000 customers. An industry-wide recovery program leads to a swift resumption of services.
1985	Conversion to natural gas decided.
1986	Introduction of natural gas to Kitakyushu Works.
1988	Headquarters relocated to Chiyo, Hakata-ku, Fukuoka City, introducing Kyushu's first city gas cogeneration system.
1989	Natural gas conversion begins in Kitakyushu Area.
1990	Long-term LNG import contract established with Malaysia LNG.
1991	Sasebo Works completed.
1993	Fukuhoku Works LNG terminal completed.
1994	Natural gas conversion in Kitakyushu and Sasebo Areas completed. Starts natural gas conversion in Fukuoka Area. Fukuhoku Pipeline completed. Customer base breaks the one-millionth mark.
1996	Fukuhoku LNG storage tank No. 2 completed. Fukuma Works closed. Starts LNG supply to Iizuka Gas.
1997	Refrigerated storage warehouse completed.
1999	Starts LNG supply to Karatsu Gas and Imari Gas. Fukuhoku Works obtains ISO14001 certification.
2000	Kumamoto Works completed. Natural gas conversion completes in Fukuoka Area,starts in Kumamoto area.
2001	Research and Development Institute moves to Imajuku-Aoki Fukuoka City. Gas tariff revised. Kitakyushu Works obtains ISO14001 certification.
2002	Natural gas conversion in Kumamoto area completed. Fukunan Pipeline and Nagasaki Pipeline completed. Starts natural gas supply to Tosu Gas, Kurume City, and Chikushi Gas. Tenjin Eco-station opend.
2003	Nagasaki New Works completed. Starts natural gas conversion in Nagasaki Area. Number of Natural Gas Vehicles exceeds the 500th mark.
2004	Kumamoto Works obtains ISO14001 certification.
2005	Starts LNG supply to Kyushu Gas,Isahaya Areas. Natural gas conversion in all areas completed.