Oil extracted from the seeds of Quercus ilex was analysed for its physicochemical constants and composition of fatty acids. The analytical data obtained were compared with those of oils from Q. incana, Q. ruba, and Q. palustris. It is concluded that the oil is non-drying in nature and is fit for edible purposes as it has non-toxic compounds and can be purified cheaply. The seeds have been analysed for protein, arbohydrates and ash and the results indicate their utility as poultry and livestock feed.