Background: Today, ethic and moral values observance are the major and effective factors on the attitudes and behaviors of employees in the workplace. The aim of this study was to investigate the relationship of ethical climate with psychological wellbeing, organizational commitment, and job stress and turnover intention, according to the moderating role of self evaluations.

Methods: This research is a descriptive-correlation study. Population of study includes all employees of National Iranian Oil Company (NIOC). The participants of this study include 270 employees who were selected by stratified random sampling method. The instruments used in this study were Ethical Climate, Core Self Evaluation, Psychological Wellbeing, Organizational Commitment, Role Stress and Turnover Intention Questionnaires. Data were analyzed by Pearson correlation and moderated hierarchical regression.

Results: Results show that ethical climate positively correlated with psychological wellbeing and organizational commitment, and negatively correlated with job stress and turnover intention. Furthermore, moderated regression analysis show that core self evaluations moderated these relationships significantly.

Conclusion: The finding of the current study indicated that organizational ethical climate has important consequences for individuals and organizations. Therefore, creating ethical climate in organizations results in better performance of employees and organizational productivity.