Now, there's a truly astonishing stat! And entirely the work of private enterprise, indeed intentionally hampered by government regulation.
Incentivized by the massive potential profits.
Even greater profits are out there for someone who develops a truly clean way to burn coal. Would be quite surprised if considerable resources aren't being devoted to finding one.
While the increase has been great, the oil production increase is not quite that high. 45% increase in 3 years, from 5.5 MMBPD to 7.9 MMBPD.
U.S. Field Production of Crude Oil
http://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=MCRFPUS2&f=M