Sadek El-Kosheri, Ahmed Keywords: Oil | Concessions | Mots clefs: Pétrole et produits pétroliers | Concessions | ABSTRACT After determining the concept of the State participation in the exploitation of oil resources, Ahmed Sadek El-Kosheri, Lawyer in Cairo, measures the extent of the transformation introduced according to the concept. According to the author, such a logical approach is the only one capable of determining the real value of the State participation and its achievements. The author then devotes a fir…