Oil shale is a form of sedimentary rock that contains kerogen, which is released as a petroleum-like liquid when the rock is heated. Tar sands are a combination of clay, sand, water and bitumen, which ...

The object of their attention is oil shale, a rock so rich in an oil-like substance that certain pieces will ignite when held up to a flame. Piceance Creek runs through lands that are part of the ...

The Shengli Oilfield, under China Petrochemical Corp (Sinopec Group), the country's largest oil refiner, said its Jiyang shale gas oilfield has officially passed a review and documentation process ...