Okla. Stat. tit. 52, § 61

All persons, natural or artificial, except foreign corporations, shall have the right of eminent domain, and any right or privilege hereby conferred, when necessary to make effective the purposes of this article and the rights thereby conferred. Foreign corporations organized under the laws of any other state, or the United States, and doing or proposing to do business in this state, and which shall have become a body corporate pursuant to or in accordance with the laws of this state, and which, as hereby provided, shall have registered its acceptance of the terms hereof, shall receive all the benefits provided by this article.