[Eric in the Ozarks]

Oil sands is NOT oil shale.

[tomahawk]

Oil sands are not oil shale, and this alone destroys the author's credibility.

[Redbob]

"Oil sands is NOT oil shale."

Excellent point.

Most readily available crude oil is found in oil sands - it doesn't sit in neat little ponds underground.

Kinda makes you wonder about the accuracy of the rest of the article, doesn't it, when the author makes such a fundamental mistake?

[Ursus arctos horribilis]

With the new (forget the old from a few decades ago) proven technology, oil shale is in the ascendancy as a viable source of energy.