Oil shale is a type of sedimentary rock formation that is used to produce oil and gas. It is generally less economical than conventional crude oil.

While some complain that extracting natural gas from shale rock formations is tainting their water supply, others who have allowed drilling on their property are getting wealthy Shaleionaires 13:20 ...

Shale oil is a form of unconventional oil that is extracted directly from shale rock formations. Shale oil is made possible thanks to advances in horizontal drilling and fracking.

Rock formations called “hoodoos” fill the Bisti De-Na-Zin Wilderness in northern New Mexico. The desert area is rich with fossils from dinosaurs and animals that lived here in ancient times.

The shale gas revolution Over the past decade, companies have invested heavily in extracting gas trapped in shale rock formations thousands of meters below the Earth’s surface.

The earth under the Monterey Shale has undergone constant seismic reshaping that has folded, stacked and fractured the substrate, trapping the oil in accordion pleats of hard rock at depths of up ...

Shale formations are deep underground — 6,000 feet or more — and the rock is relatively impermeable. Deep drilling is expensive, and in the past the amount of gas that could be reached was not ...

Australia's Queensland state will allow companies to develop oil deposits trapped in shale rock formations, it said, improving the outlook for the country's oil production, which is on the decline.

Once the shale rock formations are injected with water and chemicals, it is the proppant (normally treated sand) that keeps the newly formed cracks open after they are made in the rock.

Hydrofracking relies on a high-pressure blend of chemicals, sand and water, injected deep underground to break up gas-bearing shale rock formations. Trucks bring in million of gallons of water as ...

While some complain that extracting natural gas from shale rock formations is tainting their water supply, others who have allowed drilling on their property are getting wealthy Shaleionaires 13:27 ...