Oil reserves grow in Colorado, across the U.S.

Colorado's growth in crude oil reserves ranked third behind North Dakota and Texas in the latest survey of the amount of oil buried in fields across the United States, according to the U.S. Energy Information Administration. Nationally, crude oil reserves — oil that can be pumped from the ground under current economic conditions using existing technology — grew by 9 percent, or 3.1 billion barrels, in 2013 compared to 2012, the federal agency said. It's the fifth year in a row the U.S. oil…