1 Although nobody told Mr. Callahan until it was too late, the dark-hued shale rocks found in pockets along the Western Slope were oil shale. Often referred to as the rock that burns, oil shale boasts ...

Shale is a sedimentary rock made up of tiny grains of silica, clay and other minerals. Many types of rock have few physical ...

The Marcellus Shale holds 262,000 trillion liters of natural gas, enough to power America for centuries. Discover its impact ...

The president is calling for energy dominance, but aging shale plays aren't positioned to deliver a surge of new oil production.