Contact Us

Our Corporate offices are located at:

Sioux Falls Location
 1800 E. 50th Street N.
Sioux Falls, SD 57104
Watts: 1-800-843-5624
Local: (605) 332-5531
Fax: (605) 332-6016
Dispatch Fax: (605) 332-2510
Guymon Location P.O. Box 1859
Guymon, OK 73942
Watts: 1-800-611-1283
Local: (580) 338-0620
Fax: (580) 338-0727
Send us an email: