Petrosur is a political and trade enabler promoted by the Bolivarian Republic of Venezuela, which, with the support of Brazil, Argentina and Uruguay, sets up cooperation and integration mechanisms based on complementariness and the use of energy resources in a just and democratic fashion.

Petrosur aims at minimizing the negative impact of energy costs on the countries of the region, through the decrease of transaction costs (by eliminating intermediation), access to preferential financing and by taking advantage of trade synergies in order to overcome economic and social asymmetries.