Can I Replace butter with oil?

Oil will change the texture of most baked goods. (moister/ denser) Butter adds structure.
You can also sub unsweetened applesauce 1:1

Butter Olive Oil
1 teaspoon 3/4 teaspoon
2 teaspoons 1-1/2 teaspoons
1 TBSP. 2-1/4 teaspoons
2 TBSP. 1-1/2 TBSP.
1/4 cup 3 TBSP.
1/3 cup 1/4 cup
1/2 cup 1/4 cup + 2 TBSP.
2/3 cup 1/2 cup

One stick of butter is equivalent to ¼ cup plus 2 tablespoons of olive oil:

In general, you can substitute 3/4 of the butter in a recipe with olive oil. For example, if a recipe calls for one stick of butter (8 tablespoons), you can use 6 tablespoons of olive oil.

I have never made this recipe but with over three decades of baking experience my natural instinct would be to try substituting the butter with vegetable shortening rather than reach for a liquid fat.

After all I have used butter, shortening, or lard in pie crusts interchangeably and have done so on many occasions.

Anyhow best of luck.