The term oil shale is not the only confounding nomenclature in this arena. To people seeking to better understand the nation’s energy options, oil shale, shale oil, shale gas, and oil sands ... oil ...

U.S. policymakers have been concerned about the country's dependence on imported energy since World ... The "shale revolution" has stimulated tremendous production of oil and natural gas in ...

Where most of the domestic U.S. industry has focused in recent years on developing the country’s array of prolific shale ... the world, especially given the company’s focus on natural gas.

Tar-sands development is already occurring in some places in the United States — and has taken off big in Alberta, Canada (a country also pondering oil-shale development). In fact, it has become one ...