Drillers in Utah and Colorado are poking into a massive shale deposit trying to find a way to unlock oil reserves that are so vast they would swamp OPEC. A recent report by the U.S. Government Accountability Office estimated that if half of the oil bound up in the rock of the Green River Formation could be recovered it would be "equal to the entire world's proven oil reserves." Both the GAO and private industry estimate the amount of oil recoverable to be 3 trillion barrels. "In the past 100 years — in all of human history -- we have...
