In the oil and gas industry,reservoir modelling involves the construction of a computer model of a petroleum reservoir,for the purposes of improving estimation of reserves and making decisions regarding the development of the field. The quest for optimum method of hydrocarbon production has been an issue which many oil and gas companies are interested in. Alvarado and Manrique (2010) have stated that the effort of industries to increase production by the use of large capital investments to enhance oil recovery sometimes prove futile. One of the major ways of resolving this issue is through hydrocarbon reservoir properties modelling. This study has been carefully and thoroughly carried out in aspects focusing mainly on reservoir modelling of "OAK" field, Niger Delta using an integrated Seismic approach and well log analysis. The interpretation was carried out on a workstation using the PETREL work flow tool. "OAK" Field is a prolific field of the Niger Delta which is a deltaic region with favorable conditions for the generation, accumulation and entrapment of hydrocarbon, possessing reservoirs that fit these conditions. The result suggests more development opportunities in the field