Abstarct- This research has been conducted to identify and analyze motivational factors for staff employees Iranian Offshore Oil Company. Current applied research population, is 400 members of staff employees in IOOC and among these, 107 members has chosen as simple random samples, in order to collecting the data. Motivation factors are consisting of Intrinsic and Extrinsic factors. The factorial analysis of motivational index of peoples using Lisrel software (internal consistency of options by using Cronbach’s Alpha measure was a > 0.7) have indicated that intrinsic motivation factors (work nature, success and development, prestige and rank) and extrinsic motivation factors (participation in decision marking ,perceived justice, salary and rewards, connection with direct manager, work condition) all of these motivation factors have over 0.5 values in motivation model. Also Goodness of Fitness value shows that collected sample data are totally suited and fitted on research model. Moreover , there is a high correlation between instrinsic motivations. Unlike the point of view that: extrinsic motivation descreases the instrinsic motivation it can be mentioned here that both act as complements. Keywords- motivation; instrinsic and extrinsic factors; staff employees; lisrael; Iranian Offshore Oil Company (IOOC)