Hydraulic fracturing, or fracking, of shale resources has boomed in the past 10 years, boosting economic growth and tax revenues, according to a Congressional Budget Office report released Tuesday.

Shale resources were difficult to cultivate a decade ago, but thanks to fracking they now produce 30 percent of liquid fuels and 40 percent of natural gas. The Energy Information Administration projects the production of shale gas to grow by 60 percent over the next 10 years, and the production of tight oil from shale deposits to grow by 30 percent.