impact of organizational culture on organizational commitment: role of mediating entrepreneurial orientation in national iranian south oil company

the present study evaluates effects of organizational culture on organizational commitment with emphasis on the role of mediator entrepreneurial orientation departments within the material procurement management at national iranian south oil company. statistic population included of 470 experts and managers, 23 departments within the material procurement management that using stratified random sampling and cochran formula, 211 were select as the sample size. data was gather by questionnaire that validity of faculty members and reliability using a composite reliability and cronbach's alpha confirmed. data analysis using structural equation modeling (sem) with partial least squares (pls) approach and smart pls software conducted. the results indicate a positive and significant impact of organizational culture on organizational commitment (0.50), organizational culture on entrepreneurial orientation (0.90) and entrepreneurial orientation on organizational commitment (0.46), and entrepreneurial orientation as a mediator in the effect of organizational culture on organizational commitment intensity (0.414) influence.