When this rock is softer and more porous, like sandstone and limestone, removing oil from them is kind of like squeezing the ...

Explore the immense scale and intricate workings of the world’s largest oil drilling and mining operation in this in-depth documentary film. Journey deep into one of the most significant industrial ...

Richard Edan / Getty Images Oil shale is a type of ... with the extraction processes for conventional crude oil. In addition, when there is a mining process involved with extracting oil shale ...