Which of the following rock types is most likely to host shale gas or shale oil?

A) coal
B) very fine-grained sedimentary rocks with low permeability
C) coarse-grained sandstone with high porosity
D) coarse-grained sandstone with high permeability
E) all of these

Shale Gas

Natural gas trapped within a relatively nonpermeable shale body, extracted by hydraulic fracturing.

Fine-grained

Describing materials or minerals that have small, compact particles or crystals, often used in the context of rocks or sediment.

Low Permeability

Characteristic of materials or rock formations that allow very little fluid to pass through due to small or poorly connected pores.