Raw pulverized cellulosic waste materials, fresh bituminous oils obtained from their hydrogenation, and distillates of these oils stored for one year were analyzed using infrared spectroscopy, gas chromatography, and Lasseigne's sodium fusion test, to determine the functional groups added during hydrogenation, the range of compounds present in the oils, their stability during storage, and suitability as petrochemical feedstock. The results showed that oxygen and nitrogen, which were present in the raw cellulosic materials, were no longer found in the fresh hydrogenation products. These elements reappeared during storage to show that the oils were unstable. They were also found to contain unsaturated hydrocarbons of low molecular weight, similar to products obtained from catalytic cracking and reforming of petroleum, to suggest that they can be used as feedstock for petrochemical industries.