Gas Plus S.p.A engages in the exploration, production and distribution of natural gas. The company is headquartered in Milan, Milano. The company went IPO on 2006-12-06. Its activities follow the whole energy chain, including exploration and production of hydrocarbons; natural gas wholesale and supply, natural gas distribution and transport; sales to final users, and gas storage. The firm is active in the natural gas exploration activities in Italy, Romania, the Netherlands and Poland. The firm operates through its subsidiaries, which are divided into five business units: Exploration and Production; Storage; Supply and Sales; Retail, and Network and Transportation. As of December 31, 2011, the Company’s subsidiaries were Idrocarburi Italiana Srl, Gas Plus Italiana SpA, Gas Plus Storage Srl, Gas Plus Reti Srl, Gas Plus Vendite Srl and Gas Plus Energia Srl.