It's named Frac Daddy, a take on the oil drilling technique known as fracking.

Two Montana oilmen who do a lot of work in North Dakota have a horse in the race in Kentucky, as well — literally.

Billings residents Carter Stewart and Ken Schlenker own a horse that is running in the Kentucky Derby on Saturday. It's named Frac Daddy, a take on the oil drilling technique known as fracking.

Stewart tells The Forum newspaper (http://bit.ly/10wwlea ) that the horse is a tribute to all of the oil field workers in America and especially the Williston Basin in the Dakotas and Montana.

Frac Daddy's odds of winning are posted at 50-1, but Stewart says he's optimistic. He says he thinks the horse has a shot.