Tri-Energy Cenex - Expressway

08/19/2026

As Special Thank you from Cash Wa Distributing we are offering a free donut on August 20th, 2026 available at 3801 East Rosser only. (While supplies last)

08/13/2026

It’s Fry Bread Taco Day.. Come and enjoy a fresh build your own taco.

07/21/2026

It's (almost) that time again: the 30th annual FILL THE BUS! With your Tri-Energy Cooperative, the BPS Foundation, and Rock 101.5! As you shop, grab extra supplies for the kids and join us!

07/04/2026

TRI-ENERGY COOPERATIVE | Notice of Annual Meeting | View meeting details, updates, and important information → Why Choose Tri-Energy Cooperative? Tri-Energy Cooperative offers the perfect combination of reliable energy products and sustainable solutions – offering the convenience and performance...

07/04/2026

Happy 4th of July.
Thank you Everyone who helped and visited us for some 1919 Root B**r floats.

06/28/2026

06/28/2026

On JULY 4th we will be serving 1919 Root b**r floats at our TRI ENERGY on Main in Mandan during the parade. Come have a treat to enjoy during the parade.

05/08/2026

The day has finally arrived. Our RV dump is open and ready for use! Stop in, empty the tanks, and fill up on your favorite snacks.

04/28/2026

Now serving pizza by the slice.
Today is All meat, Barbecue Chicken, Chicken Alfredo, and Pepperoni. Come in for some hot and fresh pizza.

04/24/2026

We are now offering hot food on Saturday’s!!!
Come out for a hot and fresh breakfast sandwich or one of our AMAZING Burgers with all the fresh fixings 🥬🍅🧅