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Eni Gas & Power France

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Adapted from the English Wikipedia article Eni Gas & Power France, available under CC BY-SA 4.0Updated 10 August 2025
Eni Gas & Power France
Company typeSubsidiary
IndustryNatural gas
Founded2003
FounderTaoufik Tahar, Robert Delbos, Jean-Paul George
Headquarters
Paris
,
France
Key people
Taoufik Tahar (founder)
ProductsNatural gas supply
ParentEni

Eni Gas & Power France (previously known as Altergaz) stands as the leading natural gas provider in France, with its headquarters located in Paris. The company was originally created in 2003 by Taoufik Tahar, Robert Delbos, and Jean-Paul George.

In 2012, the firm was acquired by the Italian multinational oil and gas corporation Eni.

History

Altergaz was founded in 2003 by Taoufik Tahar, who also serves as CEO of Easyloan, together with former high-ranking energy sector professionals Robert Delbos—who had been CFO of EDF-GDF and Chairman-CEO of Petrofigaz—and Jean-Paul George, previously a sales director at GDF and founder-CEO of the Cofathec group.

In 2004, Georges Cohen, the founder of Transiciel, joined the company as an investor and business partner.

The company went public on the Bourse de Paris stock exchange in 2005.

By 2012, Altergaz reported revenues close to €1.6 billion.

Collaboration with Eni

Beginning in 2007, Altergaz formed a strategic industrial and financial alliance with the Italian oil and gas giant Eni. By 2010, Eni had become the principal shareholder of Altergaz, acquiring more than 63% of its shares, and increased its ownership to nearly 98% by 2011.

Transition to Eni Gas & Power France

On October 1, 2012, Eni completed the full acquisition of Altergaz and subsequently rebranded the company as Eni Gas & Power France.