FILE PHOTO: View of the oil refinery Ecopetrol in Barrancabermeja, Colombia, March 1, 2017. Picture Taken March 1, 2017. REUTERS/Jaime Saldarriaga/File Photo
FILE PHOTO: View of the oil refinery Ecopetrol in Barrancabermeja, Colombia, March 1, 2017. Picture Taken March 1, 2017. REUTERS/Jaime Saldarriaga/File Photo