Here I tell you where to find the oil veins on the Lost Island map in Ark Survival Evolved. All of the veins I have found so far are located in the desert, in the very southern part of the Lost Island map. Oil Veins require an oil pump, so don't try harvesting them with a pick. The coordinates below have been updated after the Lost Island map update.
Lost Island Oil Vein Location Coordinates
92.7 32.8 - 2 oil veins
87.7 47.8 - 2 oil veins
|Oil Pump set up on oil vein Ark Lost Island|