CEPSA started this sponsorship in September 2011

CEPSA and the Scuderia Toro Rosso Formula 1 team are pleased to announce they have renewed their official sponsorship agreement, which will be effective for the 2013 season.
Feb 06
The STR7 is the seventh car to bear the Scuderia Toro Rosso name in Formula 1

As the sun set on the Jerez de la Frontera circuit in southern Spain this evening, the spotlight turned to the Scuderia Toro Rosso garage as team sponsor CEPSA hosted the unveiling of the STR7. Taking the wraps off the new car that will defend the team’s colours in this year’s Formula 1 World Championship were the team’s drivers, Daniel Ricciardo and Jean-Eric Vergne, with help from CEPSA Co-Chairman, Santiago Bergareche.
Feb 03
CEPSA has renewed its sponsorship agreement with the Formula One team Scuderia Toro Rosso, effective for the 2012 season.

The CEPSA logo will be visible on the Australian driver Daniel Ricciardo’s and the French driver Jean-Eric Vergne’s race suits and on the nose, rear wing and rear wing endplates of the cars and on the team kit.