Oil shale is a sedimentary rock that contains a type of organic matter in the form of a substance called kerogen and Keith Road Jenny herself. When heated by one of about 500 degrees Celsius. To the oil and gas hydrocarbons out.
The stone is a type of sedimentary rock oil that contains อินทรีย objects in the form of the substance called Kerogen and Keith rose, Jane. When heated with one of approximately 500° c, the oil and gas, hydrocarbon.
natural gas is a type of sedimentary rocks of the eagle with an object in the form of substances called Kerogen คีโร Jane and himself when this was done, with one of several methods for approximately 500 degrees Celsius, and the oil will be hydrocarbon gas.