Capital expenditures made in recent years led to the commissioning and start-up of a variety of new units, noteworthy being the following: at the "Gibraltar" Refinery, the naphtha hydrotreater, the Selective Hydrogenation Unit (SHU), the retrofitting of the R-56 Platformer, the completion of the interconnecting lines with NUEVA GENERADORA DEL SUR, the engineering of the new metaxylene plant, phthalic and slops tanks, the collection of closed drainages and the expansion of the pipeline