Individuals with different personal demographics and job-based factors have different attitudes and behaviors, which can influence their levels of commitment to their organizations. These differences in organizational commitment increase as their cultural backgrounds differ significantly. Personal demographics and job-related factors are reliable predictors of employees' commitment to their employing organizations. The purpose of this study was to empirically investigate if there is a difference in the level of employees' commitment to Saudi petrochemical companies on the basis of differences in their personal demographics and job-related factors.