The Tunisian Company of the Refining Industries STIR, was created in 1961 following an agreement between the Tunisian State and the Italian group ENI. Its purpose is the refining of crude oil in order to satisfy the needs of the national market in petroleum products.

Since its tunisification in 1975, the STIR has become a public company with the responsibility to cover all the needs of the country in petroleum products.

In this context, the import activity of all fuels and fuels was entrusted to the STIR in 1999.

In 2001, the needs of the local market, which reached 3.8 million tons of all products combined, were covered by the STIR activities in production and import. The turnover of the STIR surpassing for the first time 1 billion Tunisian dinars class, according to the Economist Maghrebin, and the Economy to the first rank of the Tunisian companies.