It varies... I have the numbers on our wells but can't recall them off the top of my head. The older well produced for a long time and began to slow down, they came in and re-drilled (went deeper in the same hole) and now it's the 2nd best in production. The newest (top pic I posted) is in the "Cotten Valley" strata. I didn't know what that meant until I found out it was like the Mississippii River of oil in East Texas... It's our #1 poducing well & it is not all that deep as I remember (kinda' like a juggler vein! ).