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This paper focuses on the influence of the existence of foreign oil companies that has been operating in the territory of the Sakai Tribe as one of indigenous tribes in Riau. Sakai tribe has inhabited the area which later became the oil mining area of PT. Chevron Pacific Indonesia (PT CPI). The company continues the activities of foreign oil companies which previously also operated in Duri, Riau. Oil mining activities undertaken in Riau contributes to environmental changes including in the areas where the Sakai people live. The environmental changes also change the pattern of society activity and character because of some changes in terms of patterns of working and settlements. Refers to the huge profits gained by oil companies around Riau, especially in Duri sub-district, this paper seeks to find out whether the policies of the foreign oil company can stimulate the economic growth in the region or on the contrary, it does not provide economic advantages to the people living around mining areas, especially the Sakai people. This research uses historical method where historical sources are also obtained through interview with people of Sakai tribe and PT.CPI officers. The results of the research show the existence of environmental pollution caused by mining activities and it also influences on economic and social life among members of Sakai community

oil exploration, Act, Foreign Oil Company, Sakai Tribe, Pollution