Great Western Petroleum
Serving Montana, Idaho, Washington, and Wyoming
About Us
Our mission at Great Western Petroleum is to provide products and services to our customers at a competitive price, while adding value through long term relationships, excellent customer service, and our broad knowledge of the petroleum industry.
Find a store!
Ten Distinct Locations
Our Services
Convenience Stores
Farm/Small Tank
Industrial Lubricants
Jet Fuel
Quick Lube Supplier
Authorized Distributor
![](https://www.gwpetrol.com/wp-content/uploads/2018/06/Chevron_Corporation.png)
![](https://www.gwpetrol.com/wp-content/uploads/2019/01/Exxon-Logo.png)
![phillips66](https://www.gwpetrol.com/wp-content/uploads/2024/02/phillips66.png)
![](https://www.gwpetrol.com/wp-content/uploads/2018/06/Conoco_logo.svg_.png)
![](https://www.gwpetrol.com/wp-content/uploads/2018/06/texaco-logo-png-transparent.png)
![](https://www.gwpetrol.com/wp-content/uploads/2018/06/Havoline.png)
![](https://www.gwpetrol.com/wp-content/uploads/2018/06/Shell.png)
![mobil-logo](https://www.gwpetrol.com/wp-content/uploads/2024/02/mobil-logo.png)
![76_Orange_Logo (1)](https://www.gwpetrol.com/wp-content/uploads/2024/02/76_Orange_Logo-1.png)
Address
1002 E. Broadway P.O. Box 8448 Missoula, MT 59801
Call Us
(406) 543-7621
(406) 728-7736