Gray Oil Co Keeps North Dakota Running

Serving farmers, homeowners and business owners throughout the greater Bismarck-Mandan area for all their petroleum product needs.

Welcome to Gray Oil Co!

Our business in Mandan, ND supplies diesel, propane, gasoline, lubricants, fuel additives, and other high-quality petroleum products throughout the greater Bismarck-Mandan area.

Gray Oil Co was established during the 1920s. Over that time our fuel products’ logos changed from Standard Oil to Amoco to Tesoro to Marathon – but our core values stayed the same. Our family-owned business emphasizes personable service, fair prices, fast delivery, and the expertise that assures you’re only buying the fuels and other products you actually need. We are happy to share our knowledge, including how to perform the preventative maintenance that keeps vehicles, tractors and other machinery running reliably.

Agricultural. Residential. Commercial.

We are proud to serve everyone who needs high-quality petroleum products. Farmers count on us for diesel. Homeowners count on us for propane. Businesses count on us for the gasoline, lubricants, fuel additives, and everything else they need to stay open and profitable.

Contact Gray Oil Co today for pricing!