Oriente Petrolero beat Guabirá, 0x1, on Sunday, on matchday 8. In this competition, Montero's team came from two defeats, and Chocho Llop's team came from a draw.
Shortly before the interval, Pablo Zeballos struck the only goal of the game.
In the closing stages of the game, Daniel Mancilla left the game early after seeing a red card.
After the result Oriente Petrolero are 4th in the table, with 14 points, while Guabirá sit 10th place, with 10 points. In the next fixture, Chocho Llop's team will host Destroyers, while Montero's team visit Royal Pari FC.