The present paper deal with the evaluation of the petrophysical parameters of Nullipore formation at Ras Fanar oil field oil field in the central province of Gulf of Suez through the analysis of well logging data available for six wells. A comprehensive formation evaluation has been applied through number of crossplots and use their out-put parameters as in put data for interactive petrophysics software in order to evaluate the lithological constituents and fluid saturations. The lithosaturation crossplots indicate that the Nullipore formation consists of limestone and dolomite with few clay and anhydrite the lithosaturation crossplots also illustrated that zone III and II of Nullipore are the main reservoir zones in the Nullipore.