CORDOBA, ARGENTINA--May 29, 2008--Researched by Industrial Info Resources (Sugar Land, Texas)--Puerto la Cruz Refinery, owned by Venezuela's state owned oil company, PDVSA, and located in Anzoategui State, in the northeastern area of the country, will perform a series of unit turnarounds and revamp work as part of the upgrading project called "Valcor", which aims at increasing the refinery's processing capacity and allowing it to obtain higher quality products.