A process for revitalization of the coal deposit for enhanced microbial gas production by exposing coal deposit to air oxidation. Water is removed from coal beds and stored. The coal is exposed to hydrogen peroxide for providing oxygen-rich organic molecules that are more readily biodegraded. Oxidation and drying out of coal produces additional cracks within the coal matrix to allow microbes greater access to the overall coal matrix. The coal is reinjected with emulsified oil and inorganic nutrients by transporting produced water from the storage sites to the reinjection wells. Produced water is mixed with oil and inorganic nutrients in a holding tank. The reinjection water containing nutrients and oil is then injected into the coal under pressure. The mixture presence of the oil speeds up cell division of bacteria and methanogens in the coal and create microbial biomass sufficient to accelerate biomethanogenesis of the coal.