You should look at the active and new well reports over the last 4 years. LOTs of oil has been found in OK as of recent. They aint leaving over a 2% tax increase.Oh, they will not stop drilling in general. They will go to a different state to drill and the tax revenue that was being collected in Oklahoma will go with them. If it becomes uneconomical to drill in Oklahoma, they will move.
It's a little different than your example because the oil and gas is everywhere, not just Oklahoma. These drillers are not held captive to Oklahoma like gold veins that run through the mountains of Colorado.