Add your flour to a bowl and create a well. Add the eggs, oil, and salt to the well. Mix until just combined.
Drizzle in the milk, whisking the entire time, until completely incorporated. The batter will be thin.
Cover the bowl with plastic wrap and allow it to refrigerate overnight.
Heat a skillet over medium-high. Add oil and make sure the entire pan is coated, using a paper towel.
Pour a ladleful of batter into the hot skillet. Swirl the skillet in a circular motion to coat the entire bottom. Allow the first side to cook for 1-2 minutes before flipping.
Flip the crepe and allow the second side to cook for another 1-2 minutes until golden brown.
Transfer to a plate and continue with the rest of the batter.