Hydro was a chain of fuel stations throughout Sweden owned by Statoil.

The company also operated in retailing natural gas, electricity and heating oil.

[citation needed] The Hydro chain was created in the late 1980s when Norsk Hydro bought the Mobil stations in Norway, Sweden and Denmark to transform itself to a vertically integrated petroleum company.

In 2007 the ownership of Hydro was transferred to StatoilHydro when Norsk Hydro's oil and gas division merged with Statoil.

When StatoilHydro was renamed Statoil in November 2009, the use of the Hydro-brand was discontinued and ownership of the Hydro filling stations was transferred to St1.