This study investigates the nature and context-based peculiarities of sustainability practices related to the supply chain of oil servicing firms operating in the downstream sector of Nigerian oil and gas industry. The supply chain management practices of oil servicing firms are crucial to the functioning of the downstream sector of the oil and gas industry. However, the literature on their supply chain sustainability is scant and scattered. To fully explore this field; therefore, survey data were collected from key practitioners in the industry and analysed using descriptive statistics. The results show that the supply chain management practices of oil servicing companies relating to designing, producing, marketing, delivering, and supporting the products of their clients rarely factor in the requirements of sustainability practices. Accordingly, this study points out strategic interventions that could help in greening the supply chain practices of oil servicing companies operating in the downstream sector of the Nigerian oil and gas industry