Okla. Const. art. IX, § 31

Foreign corporations - Eminent domain - Restrictions on exercise. No railroad, oil pipe line, telephone, telegraph, express, or car corporation organized under the laws of any other state, or of the United States, and doing business or proposing to do business in the State of Oklahoma, shall be allowed to exercise the right of eminent domain, unless it shall become a body corporate pursuant to the laws of this state; or unless such corporation shall comply with such limitations and restrictions as may be prescribed by the Corporation Commission, and file with the commission its written acceptance of such requirements and procure from the commission a certificate entitling it to exercise such right. Amended by Laws 1913, c. 168, p. 387, § 1.