For about a century, entrepreneurs have tried to squeeze oil from rock on Colorado’s Western Slope. It’s often said that there’s enough oil shale out there to dwarf Saudi Arabia’s reserves. But no one’s ever been able to make any real money extracting it.  That COULD be changing.  Shell recently announced that it was able to produce a small amount of liquid oil.  Joining us to discuss that, and other oil shale developments, is Jason Hanson. He’s a researcher at the Center of the American West at CU-Boulder. He’s also co-author of the website “What Every Westerner Should Know About Oil Shale.”