Resumen del autor, extraido del trabajo. Kopet Dagh sedimentary basin is one of the promising areas for hydrocarbon exploration. Khangiran gas field producing gas and condensate from Surijeh (Lower Cretaceous) and Muzduran (Upper Jurassic) formation indicate that the area is atractive for further exploration activity. On that basis, 160 outcrop samples were selected from various geological sections and different geochemical techniques were applied for source rock evaluation. Rock-Eval analysis of samples indicates that total organic carbon varies from 0.63 wt.percent in NW to 0.27 wt.percent in SE of the area. Organic petrographic studies and elemental analysis of Kerogen indicate that the organic matter are mainly type III with minor amount of type II . Variation in sandston to shale ratio and vitrinite reflectance study show that Kitchen area lies on the NE of the area and organic matter are at the catagenetic stage of maturation. The source potential index (SPI) was calculated using effective thickness and average genetic potential. SPI variations indicate that hydrocarbon potentiality increases from SE to NW of the area. Based on the various isothermal and isopach maps, charge factor and entrapment style system of migration of hydrocarbon was considered to be, undercharged laterally drained low impedance.