Relisted on the First Section of the Tokyo Stock Exchange.
1984
Managing interest in Kanuma Gas Co., Ltd. acquired.
1999
Abiko Gas Co., Ltd. acquired Toride Gas Co. Ltd. and changed name to Higashinihon Gas Corporation.
Shinnihon Gas Corporation acquires Kuki City Gas Co., Ltd.
2001
Oyama City Gas Co., Ltd. acquired Kanuma Gas Co. Ltd. and changed name to Kitanihon Gas Co., Ltd.
Shinnihon Gas Corporation listed on the Second Section of the Tokyo Stock Exchange.
2002
Managing interest in Tobu Gas Co., Ltd. acquired.
2003
Tobu Gas Co., Ltd. changed name to Tosai Gas, Inc.
2004
Higashinihon Gas Corporation listed on the Second Section of the Tokyo Stock Exchange.
2005
Japan’s first community gas (natural gas) residential apartment complex installation began (Abiko-shi, Chiba).
2010
Gas Terminals completed in Chiba and Saitama.
Depot Stations completed in Hadano, Yokosuka, and Togane. (Operation of LP gas container delivery depot station commenced.)
2011
Depot Stations completed in Mito, Utsunomiya, Oyama, and Ota.
Entrust Energy, Inc. established in Texas (U.S.) and electric power retail business commenced.
Entered into a capital and business alliance with OEP (OEP NG LLC), the global private investment arm of JP Morgan Chase & Co.
2012
Depot Stations completed in Kimitsu and Toda.
Kumo no Uchusen K.K. established.
2013
Sayama Depot Station completed.
EEE(former NES) established and electric power and city gas retail business commenced in the U.S. northeast.
Conversion of 4 city gas subsidiaries (Tosai Gas, Higashinihon Gas, Shinnihon Gas, Kitanihon Gas) to wholly owned subsidiaries announced.
2014
Entrust Energy, Inc. began retail sales of city gas in California.
The number of households supplied in the U.S. exceeds 150,000.
The basic business alliance contract with OEP cancelled because the original goal had been reached.
Depot Stations completed in Mizuho and Inashiki.
Registration as PPS. Start bundling sales of “Electricity & Gas(LPG)”
2015
Protect Member Service released.
Nippon Gas was selected as one of the issues comprising the "JPX-Nikkei Index 400".
Nippon Gas signed a business partnership agreement with Tokyo Electric Power Company, Incorporated (“TEPCO”).
Transferred its headquarter to Yoyogi, Shibuya-ku.
Depot Stations completed in Toride and Maebashi.
Achived Five Consecutive Years of Record Profit.
2016
Nicigas started to sell electricity and gas as a package.
Nicigas entered into an agreement with TEPCO Energy Partner Inc. for a purchase of LNG for City Gas retail business.
Nicigas was selected as a ‘Stocks brand of Competitive IT Strategy Company in 2016’ by Ministry of Economy, Trade and Industry and Tokyo Stock Exchange.
Nicigas’ stock was selected as a component issue for the "JPX-Nikkei Index 400" for the second consecutive year.
Entrust Energy, Inc. (Nicigas’ US operation) was selected as one of the 5,000 fastest growing private companies in the US for the second consecutive year.
Nicigas entered into a capital and business alliance with Metaps Inc. and started the joint initiative, “Smart Energy Innovation”.
2017
Deregulation of retail City Gas. Launch of the New City Gas business.
Establised Tokyo Energy Alliance (TEA) with TEPCO Energy Partner.
Launched Fuchu Depot Station.
2018
Launched retail Electricity business with "DEGAWARI"plan.
Purchased land in Kawasaki for large-scale LP gas filling plant "YUME NO KIZUNA KAWASAKI".
TEPCO Energy Partner invested in 3% share of NICIGAS.
Capital alliance with pring Inc. (the company providing "free money-transfer" App)
Started operation of NICIGAS' official smartphone APP "My NICIGAS".
Launched Shimizu Depot Station.
2019
Started the project of "YUME NO KIZUNA KAWASAKI".
Succeeded in-house development of online gas meter "SPACE HOTARU".
Was selected as a "Competitive IT Strategy Company" for four consecutive years.
Achieved 1million contracts in deregulated city gas market (total of NICIGAS, TEA and TEPCO)
2020
Started operation of "SPACE HOTARU"
Launched Yashio Depot Station
Achieved 2million contracts in city gas market (total of NICIGAS, TEA and TEPCO)
Succeeded in in-house development of LTE-M "SPACE HOTARU"
NICIGAS’ 65th anniversary
Was selected for "TECH PLAYER AWARD 2020"
Was selected as a "Digital Transformation Brand " for five consecutive years
NICIGAS’ " Integrated Report 2019" won the "Gold Award" at one of the world’s largest annual report competition