02/29/2012 01:07 pm ET Updated Apr 30, 2012

Colorado Oil Shale Profitability In Doubt As Chevron Halts Research

Chevron is giving up its experimental oil shale lease in western Colorado.

The company is one of only three that holds a federal lease to research oil shale energy development on the Western Slope, but officials say they would rather pursue other projects.

Read more on The Colorado Independent