The vast extent of U.S. oil shale resources, amounting to more than 2 trillion barrels, has been known for a century. In 1912, the President, by Executive Order, established the Naval Petroleum and Oil Shale Reserves. This office has overseen the U.S. strategic interests in oil shale since that time. The huge resource base has stimulated several prior commercial attempts to produce oil from oil shale, but these attempts have failed primarily because of the historically modest cost of petroleum with which it competed. With the expected future decline in petroleum production, historic market forces are poised to change and this change will improve the economic viability of oil shale.
Right now several companies have already started drilling in the shadow of the Rockies, they say that they can extract oil from the shale at about 10 dollars per barrel, we have more oil there than the combined total of Saudi Arabia, Iran, Iraq and Venzuale put together, doubled, Why have we waited so long to take action on this? Why has our leadership allowed us to be bled dry by people that hate the very air we breath? Why are we still funding terrorism through the pumps of foreign gas stations?
http://emd.aapg.org/technical_areas/oil_shale.cfm
http://www.rand.org/pubs/monographs/2005/RAND_MG414.pdf