This case study provides an analysis of Caltex Australia Limited, focusing on organizational theory, management theory, communication strategy, ethics, and diversity. It explores Caltex's organizational structure, mission, vision, and values, comparing organizational and management theories, including Classical and Scientific Management theories. The report also discusses Caltex's communication strategy, ethical practices, and diversity initiatives, such as gender equality and workplace flexibility. Furthermore, it examines eight aspects of Morgan's metaphors for understanding organizational culture, including organizations as machines, organisms, brains, cultures, political systems, systems of change, psychic prisons, and instruments of domination, concluding that organizations are multifaceted and require flexible judgment to address their issues.