To some skeptics of oil shale development, even the process Shell is pursuing appears pie-in-the-sky. It envisions both long, slow heating of in-situ shale to produce kerogen and simultaneous use of a ...

Explore the differences between shale oil and conventional oil, including extraction costs and methods, and how these impact ...

Cyclic carbon dioxide injection, also known as "CO2 huff-n-puff," is a multi-phase process in which CO2 is pumped into a reservoir to enhance oil production from naturally occurring rock formations.

But oil shale long has come under scrutiny over issues including how much energy would be consumed to produce energy, what oil price would be required for commercial development, how much water would ...

DENVER (AP) - The Interior Department last week granted leases for shale oil extraction experiments, a step in allowing companies to figure out how to profitably tap into an estimated 100-year supply ...

Canadian oil sands benefit from geology, technology, and cost-cutting measures Canadian oil sands have lower break-even prices than U.S. shale producers Technological advances improve efficiency and ...