The Eocene coal deposits in west Daranggiri, Meghalaya, are rich in organic matter from plants, but are not mature enough to be a source of oil. However, they may still have the potential to generate liquid hydrocarbons due to their unique composition. The coal likely formed in wet swamps with specific environmental conditions. The high sulfur content and presence of marine fossils suggest a nearshore deposition environment. Overall, these coal deposits show promise for use in hydrogenation industries due to their high oil yield potential.