The field is expected to produce 20,000 barrels of oil equivalent per day initially with rates expected to double by 2016.
Repsol operates Peru's Block 57 with a 53.84% share with Petrobras of Brazil on 46.16%.
PetroChina is soon to take over that stake pending the closing of a $2.6 billion Petrobras divestment deal as the Brazilian company tightens focus on pre-salt projects at home.
Kinteroni,