natural gas liquids

04/20/2012 - 10:28

Excluding the United States, the world holds an estimated 565 billion barrels (bbo) of undiscovered, technically recoverable conventional oil; 5,606 trillion cubic feet (tcf) of undiscovered, technically recoverable conventional natural gas; and 167 billion barrels of undiscovered, technically recoverable natural gas liquids (NGL), according to a new assessment by the U.S. Geological Survey (USGS) release.