1. Introduction and summary. 2 the occurrence of petroleum. 3 the reservoir rock. 4 the reservoir pore space. 5 reservoir fluids-water,oil,gas. 6 reservoir traps-general and structural, stratigraphic and fluid, combination and salt domes. 7 reservoir conditions-pressure and temperature. 8 reservoir mechanics. 9 the origin of petroleum. 10 migration and accumulation of petroleum. 11 subsurface geology. 12 the petroleum province. 13 the petroleum prospect. 14 glossary. 15 abbreviations. 16 list of bibliographies. 17 tables.