Firefighters from around the county responded to a call in Tuttle at 5 a.m. and found Grady's Pub and Grille in downtown ablaze.
"The grill is completely gone," Tuttle City Manager Tim Jones said. "The businesses on the first floor will have extensive water damage."
Mustang Fire Department were the first on the scene, with Amber and Tuttle also showing up to fight the flames.
Information on how the fire started has yet to be released.
The restaurant was purchased by 27-yeard-old Trevor Anthony and his wife Kaila in January.
The couple planned to turn the facility into a dinner theatre, which was slated to have their opening show during Memorial Day Weekend.
The building, which houses Grady’s Pub and Grille is a protected historical landmark that has stood for over 100 years.
More on this story as it develops.