Grasten Petróleo, SA (Grasten) was founded in 2004. Prior to its inception, worked under the name of Kilwa, S. A. (founded 1992). In 2007, consistent with the policy of privatization was commissioned by the then government in the oil and gas industry, was sold for 75% stake to an economic group of Argentina, in order to bid. Of these events were obtained scanning 31 fields (35% of the tendered areas in that year), due to the experience of one of its owners in the state oil company (YPF), Argentina Repsol today...
Grasten functions as a window for foreign investors to see business opportunities in Latin America.