About UsFarmer's Union Oil Cenex is a pillar of the community. Farmer's Union Oil Cenex is a leader in offering name brand tires, auto repair services for customers located in and around the Garrison, North Dakota area. Our goal is to focus on customer service. It is the foundation of our business. Farmer's Union Oil Cenex employs a well-trained staff specializing in the sale and installation of passenger car, performance, light truck, or SUV tires. Take this opportunity to browse Farmer's Union Oil Cenex website or call us for personalized service.