Preheat your oven to 375°F (190°C). Prepare a 9x13-inch baking pan by lining it with parchment paper or greasing it.

In a mixing bowl, combine warm water, sugar, and active dry yeast. Let it sit for 2-5 minutes until frothy.

Stir in vegetable oil, salt, and egg. Gradually add flour, mixing until a soft, slightly sticky dough forms.

Transfer dough to a floured surface and knead for about 4 minutes until smooth and elastic.

Divide the dough into 15 equal portions and roll into balls. Place them in the prepared baking dish.

Cover the dish with a towel and let the rolls rise for about 10-15 minutes.

Bake in the preheated oven for 20 minutes until golden brown and hollow when tapped.

Brush tops with melted butter after baking, let cool slightly before serving.