Except cost.
New shale wells in the Bakken have a $78 per barrel break even.
And, they are 90% depleted after two years.
That creates the perpetual necessity to drill in areas that are more and more expensive and less and less productive.
Even with the best technology in the world, it is likely that the break even cost of producing oil and natural gas in the USA will never go down, and, most likely, will continue to go up.
Which is why producing more and more in a situation in which there is already an oversupply is bad economic math...
I heard the same $80 break even cost from an oil industry expert at a conference last month. The decline in WTI price has him concerned.