Just read some of the other replies. Sorry if my input was redundant. With regard to urban vs. rural drugs

I believe I remember a time when law enforcement attributed that division to real estate (how close a cooker was to other neighbors aware enough and so-inclined to turn them in when they detected the offensive stench created whilst cooking) and economics. There was a time when it was so cheap to cook meth that the only downside was the smell which alerted neighbors to the operation. If you were far enough from your neighbor the stench was of no consequence. Impossible to be far enough away in an urban area, so paid the price (cocaine).

Maybe the neighbors caring is no longer an issue. Maybe the rest of the economic equation is kaput, too. No insight at all into how oxycontin fits into the rural picture, but there’s probably an angle.