You bet there is, my own opinion is around 80-90 per barrel.
I think it is closer to about $50/barrel. We (and the oil industry) are trained and accustomed the high prices and easy profit. I am all about profit for everybody. But my business experience tells me that most industries and good companies benefit by some tight times. It's a reset that economizes operations and cleans out the waste. The oil industry needs a couple years at about $40/barrel. They'll figure out how to get where they need to be. Then as the price of goes of oil goes back up, the industry will be more efficient and stronger. Since I believe the independent companies are more efficient than OPEC affiliations, I think it is best for the private sector.