In a large bowl, combine flour, sugar, salt and yeast. Pour in water while stirring. Then add oil and continue to mix by hand. Mix until a sticky dough forms.
Brush the insides of a second bowl with oil and transfer ball of dough. Cover with towel or plastic wrap and let rise at least 1 hour. Dough should approximately double in size.
Once risen, split dough in half. Place half of dough on each baking sheet, lined with parchment paper. Stretch and press it out until you cover the baking sheet with ¼ inch thick crust. Let sit another 15 minutes.