Been doing it for 50-60 years. Here is a good link.
What is Fracking? | Energy From Shale
I have mineral rights in North Dakota and a couple of decent producing wells. They are drilling 8 more right now.
They estimate with the technology right now that they are only recovering about 5% of the actual oil.
My wife says if the new wells produce like the last couple of wells for at least a year, I can retire.
Please continue to frack for at least a couple of years.