This review paper explores the critical role of Human Resources (HR) in driving environmental sustainability initiatives within the oil and gas sector. Recognizing the significant environmental impacts associated with this industry, the paper underscores the imperative for sustainable practices and the unique position of HR to spearhead these efforts. The methodology comprises a systematic review of both academic and industry sources to identify effective HR strategies and practices that support environmental sustainability. The literature review section delves into theoretical frameworks that highlight the intersection of HR and sustainability, analyzes current sustainability practices within the oil and gas industry, and evaluates the impact of HR practices on environmental outcomes. Subsequent sections discuss strategic HR interventions in recruitment, training, leadership, and organizational culture that align with sustainability goals. The paper also addresses challenges in integrating sustainability into HR practices, including resistance to change and regulatory hurdles. Through case studies and best practices, it showcases successful examples of HR-led sustainability initiatives, drawing lessons and actionable insights. Looking forward, the paper identifies emerging trends in HR's role in sustainability and offers recommendations for policy and practice to enhance the effectiveness of HR in promoting environmental sustainability within the oil and gas sector. The conclusion synthesizes major findings, highlighting the strategic importance of HR in fostering environmental sustainability for organizational success and resilience.