| June 16, 1906 34 Stat. 267 |
Congress established U.S. circuit courts for the eastern and western districts of Oklahoma and assigned the districts to the Eighth Circuit. The act became effective upon the admission of the State of Oklahoma on November 16, 1907. |
| March 3, 1911 36 Stat. 1087 |
Congress abolished the U.S. circuit courts, effective January 1, 1912. |