 The Hydro chain had been created in the early 1990s when Norsk Hydro acquired the Mobil gas stations in Norway and Sweden and the operations of Uno-X in Denmark.In the mid of 1990s Hydro Texaco started business in the Baltic countries under brands of Hydro Texaco and later Uno-X.Texaco's ownership in Hydro Texaco was transferred to Chevron as a result of the two companies merger in 2001.