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High-Quality Petroleum Products, Where and When You Need Them

Gray Oil Co supplies diesel, gasoline, propane, kerosene, fuel additives and lubricants to farmers, homeowners and businesses throughout the greater Bismarck-Mandan area. Whether you request speedy delivery or pick it up at our headquarters in Mandan, ND, you’re assured high-quality products for competitive prices.


Propane is essential to homeowners, business owners and agricultural producers alike. Whether you need heat for your house and/or shop, grain drying, or generators – our propane does it all.


Chevron doesn’t slip up when it comes to lubricants. We provide their high-quality engine oils, hydraulic oil and grease to the automotive, industrial, and on-highway and off-highway commercial sectors. Keep your machinery protected – and your business running – by counting on Gray Oil Co for all your lubricant needs.


We aren’t gassing ourselves up when we say we supply the best petroleum products in Central North Dakota. In addition to gasoline, we sell diesel, kerosene and premium fuel additives that will keep your equipment running reliably.

Bulk gasoline
Enhance productivity and pay less when you purchase bulk gas from Gray Oil Co. We deliver direct to your farm and job sites across the greater Bismarck-Mandan area.

Fuel additives
Boost efficiency while prolonging the lifespans of your vehicles and equipment. Our expansive selection of fuel additives are suitable for all machinery.

Contact Gray Oil Co today for pricing!